WO2012005514A2 - Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine - Google Patents

Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine Download PDF

Info

Publication number
WO2012005514A2
WO2012005514A2 PCT/KR2011/004950 KR2011004950W WO2012005514A2 WO 2012005514 A2 WO2012005514 A2 WO 2012005514A2 KR 2011004950 W KR2011004950 W KR 2011004950W WO 2012005514 A2 WO2012005514 A2 WO 2012005514A2
Authority
WO
WIPO (PCT)
Prior art keywords
washing machine
temperature
water level
water
washing
Prior art date
Application number
PCT/KR2011/004950
Other languages
French (fr)
Korean (ko)
Other versions
WO2012005514A3 (en
Inventor
김맹철
이현승
박종아
조기철
김형용
박석규
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020100065049A external-priority patent/KR101689719B1/en
Priority claimed from KR1020100073609A external-priority patent/KR101711836B1/en
Priority claimed from KR1020100073613A external-priority patent/KR20120011639A/en
Priority claimed from KR1020100074239A external-priority patent/KR101774808B1/en
Priority claimed from KR1020100074242A external-priority patent/KR20120012217A/en
Priority claimed from KR1020100074238A external-priority patent/KR20120012213A/en
Priority to US13/807,939 priority Critical patent/US20130239336A1/en
Priority to BR112013000153A priority patent/BR112013000153A2/en
Priority to RU2013104884/12A priority patent/RU2530422C1/en
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to CN201180035580.2A priority patent/CN103025945B/en
Priority to AU2011274716A priority patent/AU2011274716B2/en
Priority to EP11803800.9A priority patent/EP2592181B1/en
Priority claimed from KR1020110066987A external-priority patent/KR20130005531A/en
Publication of WO2012005514A2 publication Critical patent/WO2012005514A2/en
Publication of WO2012005514A3 publication Critical patent/WO2012005514A3/en

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/081—Safety arrangements for preventing water damage
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a control method of a washing machine and a freezing management system of a washing machine.
  • a washing machine in general, includes an outer tub for washing water, and an inner tub rotatably provided in the outer tub to accommodate clothes and the like (hereinafter, referred to as 'foam'), and washing of the fabric is performed as the inner tub is rotated.
  • 'foam' clothes and the like
  • the washing machine has a top loading type in which an inner tank is vertically provided so that the foam can be fed from the upper side and rotates about a vertical axis, and the inner tank is horizontally provided so that the foam can be fed from the front and rotates about the horizontal axis. It can be divided into front loading type.
  • the washing machine of the top-loading method can be largely classified into an agitator type and a pulsator type, and the agitating type washes by rotating a laundry rod towering in the center of the inner tank, and the vortex type is located at the bottom of the inner tank.
  • the formed disk-shaped pulsator or inner tub is rotated to wash.
  • the front loading method is commonly referred to as a drum washing machine, and a lifter is provided on an inner circumferential surface of a drum constituting an inner tank, and as the drum rotates, the lifter lifts the cloth by the lifter and drops it.
  • washing water is frozen in an environment such as a winter season when the temperature of the outside air drops below zero, so that the water supply device or the drainage device does not operate normally.
  • An object of the present invention is to provide a control method of a washing machine that can prevent the washing machine from freezing.
  • an object of the present invention is to provide a control method of a washing machine to stop the operation of the washing machine according to the freezing conditions set by reflecting the temperature inside the washing machine.
  • an object of the present invention is to provide a control method of a washing machine that can prevent the freezing of the washing machine in advance by allowing the user to immediately recognize when the temperature inside the washing machine is sensed below a predetermined level.
  • an object of the present invention is to provide a control method of a washing machine that can accurately detect whether or not frozen by several times depending on each step of operating the washing machine.
  • an object of the present invention is to provide a control method of a washing machine that can detect whether the washing machine is frozen.
  • an object of the present invention is to provide a control method of a washing machine that can prevent the washing water to freeze by removing the residual water remaining in the washing machine.
  • the present invention is to provide a control method of the washing machine to improve the ease of use by allowing the user to selectively remove the residual water remaining in the washing machine.
  • the present invention is to provide a freezing management system of a washing machine that can detect and prevent freezing at a short or long distance by using a communication medium.
  • the control method of the washing machine of the present invention comprises the steps of (a) detecting the temperature inside the washing machine through a temperature sensor; And (b) operating the heater provided in the washing machine when the temperature sensed in the step (a) is lower than the set temperature.
  • control method of the washing machine of the present invention is a control method of a washing machine having at least one of a water supply valve, a drain valve and a drain pump, the temperature provided in the water supply valve, drain valve or drain pump provided in the washing machine (A) sensing a temperature through a sensor; And (b) operating the water supply valve, the drain valve or the drain pump equipped with the temperature sensor when the temperature sensed in the step (a) is lower than the set temperature.
  • control method of the washing machine of the present invention before the water supply to wash water, performing the drainage when the water level in the outer tank is above the set level (a); (B) comparing the temperature inside the washing machine with a reference temperature when the time taken for draining in the step (a) is greater than or equal to a set time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the reference temperature in step (b).
  • control method of the washing machine of the present invention is to perform drainage when the water level in the outer tank is higher than the first set water level set to determine whether the overflow occurred before the washing water into the outer tank (a) step; (B) performing draining when the water level in the outer tank is higher than the second set water level lower than the first set water level after the step (a); (C) comparing the temperature inside the washing machine with a predetermined reference temperature when the time taken for draining up to a predetermined water level in step (b) is greater than a predetermined drainage setting time; And (d) outputting a first error message when the temperature inside the washing machine is lower than the predetermined reference temperature in step (c).
  • control method of the washing machine of the present invention comprises the steps of (a) watering the wash water into the outer tank; (B) comparing the temperature inside the washing machine with a third reference temperature when the water level in the outer tank is lower than the first water supply setting level after the washing water is supplied for the first water supply setting time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the third reference temperature in step (b).
  • control method of the washing machine of the present invention (a) detecting the temperature before the water supply is made into the outer tank; (B) supplying water into the tub; (C) detecting the water level in the outer tank; And (d) outputting a fifth error message when the temperature sensed in the step (a) is lower than the reference temperature and the water level in the outer tank does not reach the first set water level within the first set time.
  • control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the water supply valve, when power is applied to the water supply valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the water supply valve decreases by a predetermined value or more.
  • control method of the washing machine of the present invention (a) detecting the amount of change in the output voltage of the drain pump, when power is applied to the drain pump; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain pump decreases by a predetermined value or more.
  • control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the drain valve, when power is applied to the drain valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain valve is reduced by a predetermined value or more.
  • the freezing management system of the washing machine of the present invention includes a washing machine which determines whether the washing water is frozen and transmits a signal indicating whether the washing water is frozen to the outside through a communication medium; It includes a remote control device for receiving whether the washing water is frozen from the washing machine.
  • the freezing management system of the washing machine of the present invention the user inputs a signal for preventing the freezing of the wash water, and a remote control device for transmitting the freeze protection signal to the washing machine through a communication medium; Receiving the freeze protection signal from the remote control device, and comprises a washing machine to perform the freeze protection operation of the wash water.
  • the control method of the washing machine of the present invention has an effect of preventing the washing machine from being frozen even in a low temperature environment such as a cold weather.
  • control method of the washing machine of the present invention by applying heat directly to the components of the washing machine that can cause freezing, it is possible to effectively prevent the freezing or thawing of the components.
  • control method of the washing machine of the present invention does not need to provide a separate heater for applying heat to a component frequently in contact with the wash water, and can prevent freezing by using self-heating generated when the component is operated. It works.
  • control method of the washing machine of the present invention has the effect of accurately detecting whether or not frozen.
  • control method of the washing machine of the present invention has the effect of accurately detecting whether the freezing by determining whether to freeze several times in accordance with each step of operating the washing machine.
  • control method of the washing machine of the present invention has the effect that it is possible to determine whether or not frozen before a predetermined stroke of washing, rinsing, dehydration, and the like.
  • control method of the washing machine of the present invention can ensure the safety by stopping the operation of the washing machine when the washing machine freezes, there is an effect that can be induced to take appropriate measures by outputting an error indicating the freezing to the outside.
  • control method of the washing machine of the present invention there is an effect that can prevent the residual water remains frozen in the washing machine.
  • control method of the washing machine of the present invention has an effect of preventing the washing machine from being left in a frozen state for a long time by performing thawing when it is detected that the washing machine is frozen.
  • control method of the washing machine of the present invention simply or accurately detect whether the freeze by changing the output voltage or output current of the electrical equipment constituting the washing machine, such as a water supply valve, drain valve or drain pump. It can be effective.
  • the freezing management system of the washing machine of the present invention there is an effect that can provide information about the freezing of the washing machine to a user in a remote place.
  • the freezing management system of the washing machine of the present invention can confirm whether the washing machine is frozen at a remote place through a communication network.
  • the freezing management system of the washing machine of the present invention the operation for preventing the freezing of the washing machine can be performed remotely through a communication network.
  • FIG. 1 is a side cross-sectional view of a washing machine according to an embodiment of the present invention.
  • FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1.
  • FIG. 3 is a block diagram showing a control configuration of a washing machine according to an embodiment of the present invention.
  • Figure 4 shows an example of a configuration for supplying power to prevent freezing in the washing machine according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
  • FIG. 8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
  • 9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
  • FIG. 10 illustrates another example of a configuration of supplying power for preventing freezing in the washing machine 100 according to an embodiment of the present invention.
  • FIG. 11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention.
  • FIG. 12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
  • FIG. 13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
  • FIG. 14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
  • 15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
  • 16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
  • 17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
  • FIG. 18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
  • FIG. 19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
  • 20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
  • 21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
  • FIG. 22 is a flowchart illustrating a control method of a washing machine according to a seventeenth embodiment of the present invention.
  • FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
  • 24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention.
  • 25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
  • 26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
  • FIG. 27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
  • FIG. 28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
  • FIG. 1 is a side cross-sectional view of a washing machine 100 according to an embodiment of the present invention.
  • FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1.
  • 3 is a block diagram showing a control configuration of the washing machine 100 according to an embodiment of the present invention.
  • a washing machine 100 includes a cabinet 1 forming an appearance, an outer tub 2 provided in the cabinet 1 to contain wash water, and an outer tub. And an inner tub 3 rotatably provided in (2) to accommodate laundry, and a pulsator 4 rotatably provided below the inner tub 3.
  • the inner tank 3 is provided with a plurality of handmade 3h so that the wash water can flow between the outer tank 2 and the inner tank 3.
  • the upper cover 12 may be provided at an upper portion of the outer tub 2, the center cover of which the center portion is opened so that laundry can be introduced into the inner tub 3.
  • One side of the cabinet 1 is provided with a control panel 11 that provides a user interface with operation keys and a display for displaying an operation state of the washing machine so that a user can input various commands for controlling the operation of the washing machine. Can be.
  • the washing machine 100 is connected to an external water source such as a faucet, the water supply passage 5 for supplying the wash water to the inner tank (2) and the outer tank (3), and the water supply passage (5)
  • Water supply valve (6) for regulating the water
  • a detergent box (7) containing detergent
  • a drain passage (9) for draining the wash water in the outer tank (2)
  • a drain pump 10 provided on the drain passage 9, and a drive unit 13 for selectively rotating the inner tank 3 or the pulsator 4 may be included.
  • the driving unit 13 may include a motor (not shown) for generating a rotational force and a clutch (not shown) for selectively transmitting the rotational force of the motor to the inner tank 3 or the pulsator 4.
  • the washing machine 100 includes a control unit 14 for controlling the overall operation of the washing machine, a freezing prevention selection unit 16 to which a control command for executing freezing prevention is input, and an outer tub 2
  • the water level sensor 20 for detecting the level of the wash water contained in the), the temperature sensor 18, the display unit 22 for displaying the operating state of the washing machine, and the heater 28 may be further included.
  • the heater 28 may be provided under the outer tub 2, and as shown in FIG. 2, a heater accommodating part which forms a predetermined space for accommodating the heater 28 is formed in the lower tub 2.
  • the heater cover 71 may be provided to cover the upper side of the heater accommodating part.
  • the heater cover 71 may be provided with a hole 71h to allow the washing water in the outer tub 2 to be drained, and the drain receiving hole 74 may be formed in the heater accommodating part so that the washing water may be drained to the drainage passage 25. Can be formed.
  • the temperature sensor 18 may be provided at the bottom of the outer tub 2.
  • the temperature sensor 18 measures the temperature of the washing water or the temperature of the air in accordance with the level of the washing water in the outer tank (2). That is, it is apparent that the temperature sensed by the temperature sensor 18 will be the temperature of the medium in contact with the temperature sensor 18.
  • the washing water of a predetermined level or more is stored in the outer tank 2, so that the temperature sensor 18 If soaked in the wash water will be the temperature of the wash water, otherwise it will be the temperature of the air.
  • Figure 4 shows an example of a configuration for supplying power for freezing prevention in the washing machine 100 according to an embodiment of the present invention.
  • the washing machine 100 may include a first power supply unit 24 and a second power supply unit 26.
  • the first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration.
  • the washing machine is standby by the power supplied by the first power supply unit 24.
  • the display unit 22 can be operated even in the state of being in use.
  • the second power supply unit 26 is capable of supplying more than the predetermined size of power and supplies power required to operate the heater 28.
  • the second power supply unit 26 may supply power to the driving unit 13 to perform washing, rinsing, or dehydration.
  • Washing machine 100 to prevent the various components constituting the washing machine to freeze, while washing, rinsing or dehydration is not in progress, the temperature sensor 18 The temperature is sensed by the heater, and the heater 28 is activated when the sensed temperature is lower than the set temperature.
  • the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
  • the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration.
  • the first power supply unit 24 supplies power to the temperature sensor 18 during the temporary standby time, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the first power supply unit 26 supplies the heater 28. It is desirable to supply power to operate. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
  • control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature
  • the second power supply 26 may be controlled to supply power for operating the heater 28.
  • the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
  • freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
  • the washing machine is provided with a freeze protection selection unit 16 to select the freeze protection, freeze protection starts only when the user selected through the freeze protection selection unit 16 Will be.
  • freeze protection start (S501, S601, S701, S801) shown in Figs. 5 to 8 to be described later may be any of the above two.
  • the temperature sensor 18 is sufficient if it can detect the temperature inside the washing machine, the temperature sensor provided in the outer tank (2) to measure the temperature of the wash water, or the temperature sensor provided in the water supply valve (6) It may be a temperature sensor provided in the drain valve 8, or a temperature sensor provided in the drain pump 10.
  • the driving unit 13 may include a drive driver for applying a drive signal to the motor to control the rotation of the motor.
  • a drive driver may be an intelligent power module (IPM), which drives a power device such as a power MOSFET (metal-oxide-semiconductor field-effect transistor) or an insulated gate bipolar transistor (IGBT). Power modules with circuits or self-protection features can be applied.
  • IPM intelligent power module
  • MOSFET metal-oxide-semiconductor field-effect transistor
  • IGBT insulated gate bipolar transistor
  • the IPM may be provided with a temperature sensor by itself, and in the temperature sensing steps S502, S602, S702, and S802 in FIGS. 5 to 8 to be described later, it is also possible to use the temperature sensor provided in the IPM.
  • the scope of the washing machine of the present invention should be interpreted to include a dry washing machine combined with a drying function
  • the conventional dry-use washing machine is a tank in which laundry is added to dry the laundry (3)
  • a drying duct for supplying high temperature air and a temperature sensor for measuring the temperature in the drying duct are provided, indicating that the temperature sensor 18 may be a temperature sensor for measuring the temperature in the drying duct. .
  • the heater 28 can also be provided in the various components which comprise the washing machine 100.
  • FIG. For example, there is a high possibility of freezing occurring in the water supply valve 6, the drain valve 8, the drain pump 10, etc., through which the washing water flows, and the heater 28 includes the water supply valve 6, the drain valve 8, and the like. It may be provided in the drain pump (10).
  • FIG. 5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
  • the temperature is sensed by the temperature sensor 18 (S502), when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the heater 28 is operated (S503) , S504).
  • the temperature sensor 18 repeatedly detects the temperature (S506), and the temperature detected by the temperature sensor 18 again is the set temperature.
  • the operation of the heater 28 is stopped (S507, S508). Then, depending on whether the freeze detection is released again (S505), by detecting the temperature by the temperature sensor 18 (S506), when the detected temperature is lower than the set temperature, the heater 28 is again operated ( S507, S504).
  • freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • FIG. 6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
  • the operation of the heater 28 is stopped when the set time has elapsed (S606, S607, S608).
  • the heater 28 may be set within a range so as not to overheat.
  • the temperature sensor 18 periodically detects the temperature (S602), and when the detected temperature is lower than the set temperature (S603), the heater 28 again Operation S604 is performed.
  • freeze protection is released.
  • the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • FIG. 7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
  • step S704 the section in which the heater 28 is not operated is called 'stop', and in step S708, 'stop' is because the steps S704 and S708 are different in the operation method of the heater 28. to be. That is, in step S704, while the heater 28 is repeatedly operated and stopped for a predetermined time, the heater 28, in which operation is stopped in step S708, returns to step S705 from step S708 to perform steps S706 and S707. Wait for it not to work again.
  • step S707 when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the process returns to step S704 again to repeat the operation and stop of the heater 28.
  • the operation and the stop are repeated instead of continuously operating the heater 28, and thus, the operation S704 is repeated. There is a difference from the first embodiment.
  • step S705 the freeze protection release in step S705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
  • FIG. 8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
  • the operation of the heater 28 is stopped when the set time has elapsed (S806, S807, S808).
  • the heater 28 may be set within a range so as not to overheat.
  • the temperature sensor 18 periodically detects the temperature (S802), and when the detected temperature is lower than the set temperature, the heater 28 is operated again ( S803, S804).
  • step S804 the section in which the heater 28 is not operated is called 'stop', and in step S808, 'stop' is that the steps S804 and S808 are different in the operation method of the heater 28. to be. That is, in step S804, the heater 28 repeatedly operates and stops for a predetermined time, while the heater 28, in which operation is stopped in step S808, is operated until the step 28 returns from step S809 to step S802 to operate again in step S804. Wait without.
  • the release of the freeze protection of step S809 may be conditional on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
  • 9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
  • the washing machine 100 may perform a process of detecting whether the washing machine is frozen after the washing machine is operated to proceed with washing, rinsing, or dehydration.
  • the washing machine 100 determines whether an overflow occurs by comparing the water level in the outer tub 2 with the first set water level after power is applied to the washing machine, and draining the water according to the determination result.
  • the first freeze determination through the series of flows shown in FIG. 9A and the water level in the outer tank 2 are compared with the second set water level, and the drainage is performed when the water level is greater than or equal to the second set water level.
  • the water level in the outer tank 2 is detected by the water level sensor 20, and the overflow in the outer tank 2 is compared with the detected value by the first set level. It is determined whether it has occurred (S902).
  • the reason for performing this process is to detect whether the washing water in the outer tank (2) is filled by the special circumstances that occurred before the washing machine is operated, the amount exceeded a certain level and overflowed the outer tank (2). For example, the abnormality arises in the water supply valve 6, and the case where wash water is continuously supplied into the outer tank 2 even if the washing machine is turned off. Accordingly, it is preferable that the first set water level is set in consideration of the water level overflowing from the outer tub 2.
  • step S902 If it is determined in step S902 that the water level in the outer tub 2 is higher than the first set water level, the controller 14 causes the display unit 22 to output a third error message (S903).
  • the third error message is a message output so that the user can recognize that an overflow has occurred.
  • the controller 14 operates the drainage pump 10 to drain the wash water in the outer tub 2 (S904), and when the water level in the outer tub 2 is lower than the second set level within a predetermined time (S905).
  • the third error message is turned OFF (S906), and the second set water level is preferably set to an air supply level in which the washing water in the outer tub 2 is drained.
  • the second set water level is an air level.
  • the controller 14 compares the temperature detected by the temperature sensor 18 with the first reference temperature (S908), and as a result, the detected temperature is the first When it is determined that the temperature is lower than the reference temperature, the first error message is displayed on the display unit 22. When the detected temperature is determined to be higher than the first reference temperature, the second or third error message is output through the display unit 22. (S910).
  • the second freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than the first set water level. That is, when it is determined that the water level detected by the water level sensor 20 is lower than the first set water level in step S902 or through the steps S902, S903, S904, S905, and S906, the water level in the outer tank 2 becomes the second set water level. If lower, it is to determine whether or not frozen in the subsequent process.
  • the second freezing determination process includes comparing the temperature sensed by the temperature sensor 18 with the second reference temperature (S911). If the sensed temperature is less than or equal to the second reference temperature in step S911, the controller 14 controls the first error message to be output through the display unit 22 (S912).
  • the water level in the outer tank 2 in step S911 may be equal to or less than the first set level (if possible when entering S911 immediately after S902) or may be less than or equal to the second set level (this is S903, S904, S905, For example, if the water level in the outer shell (2) becomes the airborne level after performing S906 in sequence.). If the water level of the outer tub 2 is higher than the second set level and lower than the first set level, the temperature sensor 18 will sense the temperature of the wash water in the outer tub 2. On the other hand, if the water level of the outer tank 2 is lower than the second set water level (for example, the air level), the temperature sensor 18 will detect the temperature of the air inside the washing machine.
  • the second reference temperature is preferably set to a subzero value in consideration of the freezing point of the wash water, and may be set below the below zero degree considering the case where the temperature of the air is sensed by the temperature sensor 18.
  • step S911 If it is determined in step S911 that the temperature sensed by the temperature sensor 18 is lower than the second reference temperature, the controller 14 determines that the temperature inside the washing machine is low enough to freeze, and immediately changes the display unit 22.
  • the first error message is output through the operation S912. Whether to detect the freezing by performing the steps S911 and S912 is to determine or predict whether to freeze based on the detection value by the temperature sensor 18, regardless of the drainage characteristics of the wash water, the sequence shown in Figure 9b
  • the present invention is not limited thereto, and may be performed at any point in the washing machine operation process.
  • step S911 if the temperature sensed by the temperature sensor 18 is less than or equal to the second set temperature, it may be predicted with sufficient accuracy that the components of the washing machine, for example, the water supply valve 6 or the drain pump 10, will be frozen.
  • the second set temperature is preferably set to an appropriate value by experiment.
  • step S911 if it is determined in step S911 that the temperature sensed by the temperature sensor 18 is higher than the second reference temperature, the controller 14 compares the level detected by the level sensor 20 with the third set level (S913). ).
  • the controller 14 controls the drain pump 10.
  • the drainage is performed (S915), the drainage is performed during the second drainage setting time, and when the water level change value in the outer tank 2 is equal to or greater than the reference value (S916), it is determined that drainage is normally performed and the amount of water is detected ( In operation S914 and step S916, if the water level change value is less than the reference value despite the second drainage time elapsed (S917), the temperature detected by the temperature sensor 18 is compared with the third reference temperature (S918).
  • the first error message is output through the display unit 22 (S919). If the detected temperature is higher than the third reference temperature, the display unit 22 is displayed. 2nd error via) The message is controlled to be output (S920).
  • the third freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than or equal to the third set water level, and is performed after the quantity of water detection step S914 shown in FIG. 9B. Can be.
  • step S914 If the amount of water in the inner tank (6) is detected in step S914, the pattern of each stroke, such as washing, rinsing, dehydration, etc., which is subsequently performed according to the detected amount of water, is determined.
  • the water supply (S921) is a step of watering the wash water into the outer tank (2), the amount of wash water is also set according to the detected amount of water in step S914.
  • step S923 comparing the water level of the outer tub 2 with the first water supply setting water level is performed, The controller 14 determines that the water supply is normally performed when the water level detected by the water level sensor 20 is greater than or equal to the first water supply setting level, and after the second water supply setting time has elapsed (S924), the water level in the outer tub 2 is reconstructed. It compares with the water supply setting level (S928).
  • the first water supply set water level refers to a water level that is expected to be reached when normal water supply is performed during the first water supply set time
  • the second water supply set water level is a target watered into the outer tank 2 according to the detected quantity in step S914. It means water level.
  • step S923 if it is determined in step S923 that the water level in the outer tank 2 has not reached the first water supply setting level, the controller 14 compares the temperature detected by the temperature sensor 18 with the fourth reference temperature (S925). In contrast, when the detected temperature is lower than the fourth reference temperature, the display unit 22 controls the first error message to be displayed. On the contrary, when the detected temperature is higher than the fourth reference temperature, the fourth error message is controlled. Control the output.
  • the fourth error message is a message for notifying the user that water supply is not normally performed due to a failure of the water supply valve 6 or the like.
  • the controller 14 may control the display unit 22 to display the fourth error message in operation S929. ).
  • step S928 if the water level detected by the water level sensor 20 in step S928 is higher than the second water supply setting level, water supply is normally performed.
  • the control unit 14 performs the first washing (S930) and the heater by a preset algorithm.
  • the operation 28 is performed to wash the washing water in the tub 2 by heating (S911), second washing (S932), and draining (S933).
  • the inner tub 6 and / or the pulsator 4 rotate in the first washing operation S930 and the second washing operation S933, and the drainage S933 is performed by the drain pump 10.
  • the control unit 14 displays the second error message through the display unit 22. It is controlled to (S940). On the contrary, if it is determined that the water level in the outer tank (2) is below the drainage completion level in step S934, the drainage is normally performed, and then, after rinsing (S935), simple dehydration (S936), and main dehydration (S937), etc. Operation of the washing machine is completed by turning off the power of the washing machine (OFF) (S938).
  • FIG. 10 illustrates another example of a configuration of supplying power for preventing freezing in a washing machine according to an embodiment of the present invention.
  • the washing machine includes a first power supply unit 24 and a second power supply unit 26.
  • the first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration.
  • the washing machine is standby by the power supplied by the first power supply unit 24.
  • the display unit 22 can be operated even in the state of being in use.
  • the second power supply unit 26 may supply power over the predetermined size, and supply power required to operate the water supply valve 6, the drain valve 8, and the drain pump 10. Meanwhile, power may be supplied to the driving unit 13 during washing, rinsing, or dehydration through the second power supply unit 26.
  • the temperature is sensed by the temperature sensor 18 in order to prevent the various components constituting the washing machine from being frozen while the washing machine is in the standby state without washing, rinsing, or dehydration.
  • the sensed temperature is lower than the set temperature, various components constituting the washing machine are operated to prevent freezing through self-heating generated when the component is operated.
  • the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
  • the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration.
  • the first power supply unit 24 supplies power to the temperature sensor 18, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the second power supply unit 26 supplies the heater 28.
  • the drain valve 10 or the drain pump 10 it is preferable to supply power. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
  • control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature
  • the second power supply 26 may be controlled to supply power for operating the water supply valve 6, the drain valve 8, or the drain pump 10.
  • the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
  • freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
  • a freezing prevention selection unit 16 capable of selecting freezing prevention of the washing machine is provided, and the freezing prevention starts only when the user selects the freezing prevention selection unit 16. Will be.
  • the freeze protection start (S1101, S1201, S1301, S1401, S1501, S1601, S1701, and S1801) shown in FIGS. 11 to 18 to be described later may specify which of the two.
  • the temperature sensor 18 of the present invention may be provided in any of the water supply valve 6, the drain valve 8 or the drain pump 10, which will be described in more detail in the following embodiments. .
  • FIGS. 11 to 18 embodiments of the freezing prevention method of the water supply valve 6 will be described with reference to FIGS. 11 to 18.
  • the freezing prevention method illustrated in FIGS. 11 to 18 may be similarly applied to prevent the freezing of the drain valve 8, and in this case, the temperature sensor 18 is provided in the drain valve 10 and the temperature sensor ( It is specified that there is only a difference in that the operation of the drain valve 10 is determined according to the detected value of 18).
  • FIG. 11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention.
  • the temperature sensor 18 is provided in the water supply valve (6).
  • the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • FIG. 12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
  • the temperature sensor 18 is provided in the water supply valve (6).
  • the operation of the water supply valve 6 is stopped when the set time has elapsed.
  • the set time May be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
  • the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature (S1203), the water supply valve 6 is operated again. (S1204).
  • freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • FIG. 13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
  • the temperature sensor 18 is provided in the water supply valve (6).
  • step S1304 the section in which the water supply valve 6 is not operated is referred to as 'stop', and in step S1308, the term 'stop' is different from the operation method of the water supply valve 6 between steps S1304 and S1308. Because there is. That is, in step S1304, while the water supply valve 6 repeats operation and stops for a predetermined time, the flow returns to step S1305 from step S1308 and performs steps S1306 and S1307 to wait without operation until it is operated again.
  • step S1307 if the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1304 again to repeat the operation and stop of the water supply valve (6).
  • the water supply valve 6 when the temperature S1302 detected by the temperature sensor 18 is lower than the set temperature, the water supply valve 6 is not continuously operated, but the operation and stop are repeated.
  • the freeze protection release in step S1305 is conditional on the user inputting the release command through the freeze protection selection unit 16, or condition that the user inputs a control command for washing, rinsing or dehydration. Can be.
  • FIG. 14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
  • the temperature sensor 18 is provided in the water supply valve (6).
  • the operation of the water supply valve 6 is stopped when the set time has elapsed.
  • the set time may be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
  • the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the water supply valve 6 is operated again (S1403, S1404).
  • step S1404 the section in which the water supply valve 6 is not operated is called 'stop', and in step S1408, 'stop' is that, in steps S1404 and S1408, there is a difference in the operation method of the water supply valve 6. Because there is. That is, in step S1404, the water supply valve 6 is repeatedly operated and stopped for a predetermined time, while the water supply valve 6 in which the operation is stopped in step S1408 is returned to step S1402 in step S1409 to be operated again in step S1403. Wait until it doesn't work.
  • the release of the freeze protection in step S1409 may be conditional on the user inputting the release command through the freeze protection selection unit 16, or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
  • 15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
  • the temperature sensor 18 is provided in the drain pump 10.
  • freeze protection is released.
  • the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • 16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
  • the temperature sensor 18 is provided in the drain pump 10.
  • the temperature is sensed by the temperature sensor 18 (S1602), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (10) (S1603) , S1604).
  • the temperature sensor 18 repeatedly detects the temperature unless the freezing prevention is released even after the drain pump 10 is operated (S1605), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature.
  • the operation of the pump 10 is stopped (S1606, S1608).
  • the operation of the drainage pump 10 is stopped when the set time has elapsed.
  • the set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
  • the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1603, S1604).
  • freeze protection is released.
  • the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
  • 17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
  • the temperature sensor 18 is provided in the drain pump 10.
  • the temperature is sensed by the temperature sensor 18 (S1702), when the temperature sensed by the temperature sensor 18 is lower than the set temperature operation and stop of the drain pump 10 It is repeated (S1703, S1704). If the freezing protection is not released even after the drain pump 10 is operated, the temperature sensor 18 periodically detects the temperature (S1706), and again when the temperature detected by the temperature sensor 18 is greater than or equal to the set temperature. Operation of the drain pump 10 is stopped (S1707, S1708).
  • step S1704 the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1708, the term 'stop' is different from the method of operation of the drain pump 10 in steps S1704 and S1708. Because there is. That is, in step S1704, while the drain pump 10 is repeatedly operated and stopped for a predetermined time, the drain pump 10 automatically stopped in step B28 returns to step S1705 from step S1709 to step S1706 and step S1707. Wait for it not to work until it is up again.
  • step S1707 when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1704 again to repeat the operation and stop of the drain pump 10.
  • the drain pump 10 when the temperature S1702 detected by the temperature sensor 18 is lower than the set temperature, the drain pump 10 is not operated continuously, but the operation and stop are repeated.
  • step S1705 the freeze protection release in step S1705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
  • FIG. 18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
  • the operation of the drain pump 10 is stopped when the set time has elapsed.
  • the set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
  • the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1803, S1804).
  • step S1804 the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1808, 'stop' is that, in steps S1804 and S1808, there is a difference in the operation method of the drain pump 10. Because there is. That is, in step S1804, the drain pump 10 repeatedly operates and stops for a predetermined time, while the drain pump 10 in which the operation is stopped in step S1808 is returned to step S1802 in step S1809 to be operated again in step S1804. Wait until it doesn't work.
  • the release of the freeze protection of step S1809 may be conditional on the user inputting a release command through the freeze protection selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
  • Embodiments described above are to prevent the washing machine from freezing by using heat generated when the electrical equipment constituting the washing machine is operated.
  • the water supply valve 6, drainage, in which freezing by residual water may occur frequently These show that freezing can be prevented by operating the valve 8 or the drain pump 10.
  • FIG. 19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
  • the control method of the washing machine according to the fourteenth embodiment of the present invention senses the water level in the outer tub 2 before supplying the washing water (S1901).
  • the water level may be detected through the water level sensor 20.
  • the controller 14 compares the water level detected in step S1901 with the set water level (S1902), and if the detected water level is lower than the set water level, water is supplied, and then the washing, rinsing, and dehydration are performed. (S1903). In operation S1903, the controller 14 may control the water supply valve 6 to supply water.
  • step S1902 if the water level detected in step S1902 is higher than the set water level, the control unit 14 operates the drainage pump 10 to drain the wash water (S1904), after that, the outer tank (2) by the water level sensor 20
  • the controller 14 opens the water supply valve 6 to wash the water into the outer tank 2. The water is supplied and the washing, rinsing, and dehydration strokes are performed (S1903).
  • the controller 14 detects the temperature through the temperature sensor 18 (S6), and uses the detected temperature as a reference temperature. In comparison with (S1907), if the detected temperature is lower than the reference temperature, the first error message is output through the display unit 22 (S1908), and if the detected temperature is higher than the reference temperature, the display unit 22 The second error message is output through S1909.
  • step S1904 if sufficient drainage is not made even after the drainage setting time has elapsed in step S1904 (S1905), freezing may occur in the drain including the drain passage 9, the drain pump 10, and / or the drain valve 8. It may be assumed that one of the cases occurs when the drainage is not performed normally (output of the first error message) or when a failure occurs in the drain pump 10 (output of the second error message).
  • Steps S1906 to S1907 are to cover which of the two cases, and when it is determined in step S1907 that the temperature detected in step S1906 is lower than the reference temperature, the washing machine operates in a low temperature environment such as winter.
  • the controller 14 allows the first error message to be output through the display unit 22 so that the user can recognize that the freezing has occurred in the drain.
  • the reference temperature is a value set by an experiment and will be referred to as a value that can be predicted with considerable accuracy that freezing has occurred when residual water is present in the washing machine.
  • the reference temperature is set to a subzero value.
  • step S1907 determines that the temperature sensed in step S1906 is higher than the reference temperature, the residual water in the washing machine is very unlikely to freeze. Therefore, the control unit 14 determines that the drainage pump ( It is assumed that the failure of 10), the clogging of the drain passage 9 or the drain valve 8, and the like is caused, and the second error message is output through the display unit 22 so that the user can recognize it.
  • the reason for performing the step S1902 before the water supply is made during the operation of the washing machine in the present embodiment, if the washing water is present in the outer tank (2) before the water supply for washing or rinsing, whether to freeze using this In order to determine, it is possible to prevent unnecessary water supply by preventing the water supply of the washing water after the freezing is detected.
  • the controller 14 may control to stop the operation of the washing machine together with the output of the corresponding error message in operation S1908 or S1909, and to perform the process remaining by the user's specific operation or by canceling the output of the error message. Do.
  • 20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
  • the temperature is sensed by the temperature sensor 18 before water is supplied into the outer tub 2 (S2001).
  • the controller 14 compares the temperature T sensed in step S2001 with the reference temperature T1 (S2002).
  • the reference temperature S2001 may be set to a value of minus zero.
  • step S2001 If it is determined in step S2001 that the detected temperature (T) is lower than the reference temperature (T1), that is, the temperature of the air detected by the temperature sensor 18 is below zero, the washing machine operates under the condition that there is a risk of freezing. Therefore, in the subsequent steps (S2011 to S2018), it is determined whether the washing machine is frozen.
  • step S2001 if it is determined that the temperature T detected in step S2001 is higher than the reference temperature T1, it is determined whether the water supply valve 12 or the drain pump 10 operates normally in the following steps S2021 to S2030. This process is to be distinguished from the step S2011 to S2018 to determine whether or not to freeze.
  • step S2002 when it is determined in step S2002 that the detected value T of the temperature sensor 18 is lower than the reference temperature T1, a quantity detection S2011 is performed to detect the amount of the cloth injected into the inner tank 3. , The target water level is set according to the detected quantity of water and the water supply (S2012) is performed into the outer tank (2).
  • the controller 14 detects that the detected value W of the water level sensor 20 is within the first set time period. It is determined whether or not reached (S2013).
  • the first set water level W1 may be set to a value lower than the target water level set according to the amount of dose in step S2011.
  • the first set time may be set to a value shorter than the time required for the water level in the outer tank 2 to reach the target water level set in step S2011 under the condition that the water supply valve 12 operates normally.
  • the controller 14 determines that the water supply is not normally performed, and stops the operation of the washing machine including the water supply stop (S2017).
  • the fifth error message is displayed through the display unit 22 (S2018). The fifth error message is for notifying that the washing machine does not operate normally due to freezing.
  • washing is performed (S2014). Washing (S2014) is a process of removing the contamination on the cloth by rotating the pulsator (4) or the inner tank 3, the rotation pattern of the pulsator (4) or inner tank (3) can be set in various ways.
  • Drainage (S2015) is a process for discharging the wash water in the outer tank (2) after the completion of the washing (S2014) to the outside is made by the drainage pump (10).
  • the control unit 14 operates the drain pump 10 at the time of drainage S2015.
  • the water level in the outer tub 2 is detected by the water level sensor 20 while the drainage S2015 is performed, and the controller 14 sets the water level in the outer tub 2 within the second set time after the drainage S2015 is set to the second. It is determined whether the water level is lowered below W2 (S2016).
  • step S2016 If it is determined in step S2016 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage by the drain pump 10 is not normally performed, and the cause thereof is drainage. It can be seen that the most likely due to the freezing of the pump 10, the control unit 14 stops the operation of the washing machine, including the drainage stop (S2017), and the fifth error message is displayed through the display unit 22 (S2018).
  • step S2016 If it is determined in step S2016 that the detected value W of the water level sensor 20 is lower than the second set water level W2, rinsing (S2003) and internal tank (3) to rinse the cloth by supplying water again into the outer tank (2). Spinning at a high speed to spin the dehydration (S2004) may be performed in sequence.
  • steps S2021 to S2030 may be performed.
  • Steps S2021 to S2026 may be substantially the same as those of steps S2011 to S2016, except that the detected value W of the water level sensor 20 is lower than the first set water level W1 in step S2023, and the controller 14 may be used.
  • Determines that the water supply is not normal stops the operation of the washing machine including the water supply stop (S2027), and the sixth error message is displayed through the display unit 22 (S2028). The sixth error message indicates that the water supply valve 12 is not operating normally.
  • step S2026 when it is determined in step S2026 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage is not normally performed, and the controller 14 includes the drainage stop.
  • the operation of the washing machine is stopped (S2029), and the seventh error message is displayed through the display unit 22 (S2030).
  • the seventh error message indicates that the drain pump 10 is not operating normally.
  • the respective error messages are displayed on the display unit 22 in each step of S2018, S2028, and S2030. It will usually be a visual indication, but alternatively, output by a sound output means such as a buzzer, a speaker, or the like will be possible.
  • 21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
  • the power supply device 19 described below is a device for applying or cutting off the power supplied to the washing machine 100 (see FIG. 2).
  • the user may input a control command such as a desired washing course, washing time, rinsing frequency, dehydration intensity, reservation setting, and the like through the input unit 15.
  • a control command such as a desired washing course, washing time, rinsing frequency, dehydration intensity, reservation setting, and the like
  • the user may allow the washing machine 100 to detect the quantity of water and determine an appropriate washing method.
  • the washing machine 100 performs a washing stroke for removing the time of the cloth, a rinsing stroke for rinsing the cloth, and a dehydration stroke for dewatering the cloth. (S2101, S2102, S2103)
  • the washing machine 100 may stop all operations and wait.
  • the above standby process may be performed only when the user inputs a standby command through the input unit 15 separately, or may be set to always proceed without user input.
  • the input unit 15 is provided with a separate button for inputting a standby command, and when the button is pressed, the washing machine 100 will be described as always performing the waiting process. For example, when the button is pressed once, the controller 14 determines that a standby command is input during the operation of the washing machine 100, and when the button is released, the controller 14 determines that there is no standby command. Can be.
  • the controller 14 determines whether a standby command is input through the input unit 15. At this time, the dehydration step includes intermittent dehydration and main dehydration, and when the dehydration is completed, the controller 14 determines whether the waiting command is input (S2104).
  • control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2105).
  • the waiting may be performed during a preset set time, and the controller 14 determines whether the set time has elapsed while waiting (S2106).
  • the set time may be a wall surface of the outer tub 2 or the inner tub 3, or the like. It is a time required for all remaining water to flow down, and is preset and stored by experiment or the like.
  • Water flowing down during the set time is collected in the drain passage 9 or the drain pump 10.
  • the drain pump 10 may be driven to drain all remaining water. (S2107)
  • the water level sensor 20 detects the water level in the outer tub 2.
  • the water level sensor 20 detects the water level and transmits the signal to the controller 14 as a signal.
  • the controller 14 compares whether the water level detected by the water level sensor 20 is a preset drainage completed water level (S2108).
  • the control unit 14 stops drainage after a set time (S2109), where the set level is the detected level of the drainage completion level. Since a small amount of water may remain in the drain pump 10 even after reaching a, it may be set to a time at which a small amount of water may be drained, and the set time may include zero.
  • the power supply device 19 is controlled to cut off the power and turn off the power.
  • the waiting time for allowing the residual water remaining in the inner tank 3 and the outer tank 2 to flow down before the power is turned off, thereby ensuring that By removing the residue effectively, it is possible to prevent the residue from freezing.
  • 22 is a flowchart illustrating a control method of the washing machine according to the seventeenth embodiment of the present invention.
  • the controller 14 performs washing, rinsing, and dehydration strokes according to a preset washing course or the like. (S2201, S2202, S2203)
  • the controller 14 determines whether a waiting command for removing residual water is input from the user (S2205).
  • control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2206).
  • the controller 14 determines whether the set time has elapsed while the operation of all the devices is stopped as described above (S2207).
  • the controller 14 operates the drainage pump 10 to drain all the residual water collected and flowed downward (S2208).
  • the water level sensor 20 While draining the remaining water, the water level sensor 20 detects the water level, and the controller 14 determines whether the detected water level has reached a preset drainage completion level (S2209).
  • control unit 14 determines that all the remaining water in the washing machine 100 is drained, and controls the power supply device 19 to cut off the power and turn off the power.
  • a waiting step for removing residual water may be performed after the inflation stroke.
  • the waiting step is most effectively performed after all the strokes for washing are finished and immediately before the power is turned off.
  • the embodiment of the present invention has been described as being limited to performing a waiting process when a standby command is input by the user.
  • the present invention is not limited thereto, and the user inputs the standby command once until the user is released again.
  • the standby process may be always performed regardless of the number of operations of the washing machine. In the case of a washing machine used in a cryogenic environment, the standby process may be performed immediately before the power is turned off without a separate input by the user.
  • the sixteenth to seventeenth embodiments of the present invention can be applied in other embodiments described in the present specification to remove residual water before turning off the washing machine. do.
  • the washing machine may be turned off even after any of washing, rinsing, and dehydration is completed.
  • FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
  • the washing machine may determine whether the electronic device is frozen by detecting a change in the output voltage output from the electronic device when power is supplied to various electronic devices constituting the washing machine.
  • the voltage detecting unit 18 detects an output voltage output from the electric appliances when power is supplied to various electric appliances constituting the washing machine.
  • the voltage detecting unit 17 may be provided to detect the output voltage of the water supply valve 6, the output voltage of the drain valve 8, or the output voltage of the drain pump 10.
  • the voltage sensing unit 17 is provided to detect the output voltage of the water supply valve 6, it is determined whether the water supply valve 6 is frozen according to the change amount of the output voltage of the water supply valve 6. have.
  • the voltage detecting unit 17 is provided to detect the output voltage of the drain valve 8, it may be determined whether the drain valve 8 is frozen according to the amount of change in the output voltage of the drain valve 8.
  • the voltage sensing unit 17 is provided to detect the output voltage of the drain pump 10, it may be determined whether the drain pump 10 is frozen according to the amount of change in the output voltage of the drain pump 10.
  • the controller 14 is in electrical communication with the water supply valve 6, the drain valve 8 and the drain pump 10, from the water supply valve 6, the drain valve 8 and the drain pump 10 It may also be possible to detect whether or not to freeze through a change in the output signal applied to the controller 14.
  • the washing machine according to an embodiment of the present invention, according to the circuit configuration for applying power to the electrical equipment, such as the water supply valve 6, the drain valve 8 and the drain pump 10, output from the electrical equipment It can be determined whether the freezing is also based on the amount of change in the current.
  • the present invention is a water supply valve (6), drain Note that it is also possible to detect the amount of change in the output current of the electrical equipment such as the valve 8 or the drainage pump 10 and determine whether it is frozen.
  • the heater 28 may be provided in the outer tub 2 to heat the wash water.
  • the heater 28 may be provided in the water supply valve 6, the drain valve 8 or the drain pump 10.
  • the water supply valve 6 or the drain valve 8 may be implemented as a solenoid valve.
  • FIG. 23 shows the water supply by opening the water supply valve 6, and then operating the drainage pump 10 to drain the water, and the water supply valve 6 is locked and the operation of the drainage pump 10 is below zero.
  • the washing machine is left in a chamber set to a temperature for a long time to freeze, the temperature in the chamber is increased, and a predetermined power is applied to the water supply valve 6 and the drain pump 10, and the output voltage of the water supply valve 6 a) and the measurement of the output voltage b of the drain pump 10 are shown.
  • Vvalve is an output voltage value when the water supply valve 6 is frozen
  • Vvalve_ref is an output voltage value when thawing of the water supply valve 6 is completed
  • ⁇ Vvalve is a difference value between Vvalve and Vvalve_ref.
  • the output voltage of the drain pump 10 drops sharply in the vicinity of T2 because the wash water remaining in the drain pump 10 near T2 melts. That is, thawing of the drain pump 10 is performed near T2.
  • Vpump is an output voltage value when the drain pump 10 is frozen
  • Vpump_ref is an output voltage value when thawing of the drain pump 10 is completed
  • ⁇ Vpump is a difference value between Vpump and Vpump_ref.
  • the reason why the thawing time T2 of the drain pump 10 is longer than the thawing time T1 of the water supply valve 6 is that the amount of wash water remaining in the drain pump 10 is relatively higher than that of the water supply valve 6. Because there are many.
  • drain valve 8 will also show a change in output voltage in a form similar to that shown in FIG. 23
  • the present invention detects the amount of change in the output voltage of the electrical equipment when a predetermined power is applied to the various electrical appliances that make up the washing machine, such as the water supply valve (6), the drain valve (8) and / or the drainage pump (10), If it detects that the output voltage has decreased by more than a predetermined value, it defrosts.
  • FIG. 24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention. This will be described in more detail with reference to FIG. 24.
  • the freezing of the washing machine is detected, and if the freezing is detected, thawing is performed to prevent freezing of the washing machine.
  • the freezing prevention can be performed in two ways as follows.
  • freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
  • the washing machine is provided with a freezing prevention selection unit 16 to select the freeze protection, freeze protection is performed only when the user selects through the freeze protection selection unit 16 Will be.
  • the flow chart shown in FIG. 24 may be equally applicable to freezing prevention of any of the water supply valve 6, the drain valve 8 and the drain pump 10.
  • the water supply valve 6 will be replaced to avoid duplication of explanation. An example will be described.
  • a predetermined power is supplied to the water supply valve 6 and the output voltage is sensed (S2401).
  • the output voltage V of the water supply valve 6 may be sensed by the voltage sensing unit 17.
  • the display unit 22 When it is detected that the output voltage V of the water supply valve 6 decreases by a predetermined value ( ⁇ V) or more, the display unit 22 displays a freezing notification indicating that the washing machine is frozen (S2402, S2403).
  • the display unit 22 may be configured to visually display the freezing notification display or to display the freezing notification.
  • An example of the former may include a case in which the display unit 22 is an LCD, an LED, a diode, or the like.
  • An example of the latter may include a case in which the display unit 22 is a buzzer or a speaker.
  • step S2402 if the amount of change in the output voltage (V) is smaller than the predetermined value ( ⁇ V) in step S2402 and returns to step S1 to detect the output voltage (V).
  • the thawing step is performed (S2404).
  • the thawing step (S2404) may be to apply heat to the water supply valve 6 by operating the heater 28, or may use self-heating when the water supply valve 22 is operated.
  • the heater 28 or the water supply valve 22 may be repeatedly operated and stopped at a predetermined cycle.
  • the heater 28 is for heating the wash water as described above (in this case, the heater 28 is preferably provided in the outer tank 2), or is provided in the water supply valve 6
  • the drain valve 8 or the drain pump 10 may be provided.
  • the heater 28 is preferably provided in the feed valve (6).
  • the present embodiment may be equally applicable to the freezing prevention of the drain valve 8 or the drain pump 10, the heater 28 is to perform the thawing of the drain valve (8) It is preferable that the drain valve 8 is provided, and in order to perform thawing of the drain pump 10, the heater 28 is preferably provided in the drain pump 10.
  • the output voltage of the water supply valve 6 is again sensed (S2405), and when the increase amount of the output voltage V is detected to be greater than or equal to the predetermined value ( ⁇ V), the operation of the heater 28 is stopped, The freeze notification display is released (S2406, S2407). In operation S2405, the output voltage V of the water supply valve 6 may be detected by the voltage sensing unit 17.
  • step S2406 if the increase amount of the output voltage V is within the predetermined value? V in step S2406, the flow returns to step S2405 to detect the output voltage V.
  • 25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
  • a freezing management system for a washing machine includes a washing machine 100 capable of wired / wireless communication and a remote control device capable of transmitting and receiving a signal at a short distance or long distance from the washing machine 100. And a communication medium for transmitting a signal between the washing machine 100 and the remote controller 200.
  • the washing machine 100 may basically perform an operation of washing the cloth, and additionally, may detect the freezing of the washing water therein and perform an operation for preventing freezing.
  • the washing machine 100 includes a freezing detector 110 for detecting whether the washing water is frozen, and a controller 14 for transmitting a signal detected by the freezing detector 110 to the remote controller 200.
  • the washing machine 100 further includes a freezing prevention unit 120 to prevent freezing of the washing water, and the control unit 14 freezes according to the freezing prevention signal received from the remote controller 200 to the washing machine 100.
  • the operation of the prevention unit 120 may be controlled.
  • the washing machine 100 may be provided with only one of the freezing detection unit 110 and the freezing prevention unit 120, and of course, both may be provided. In the present embodiment, the washing machine 100 will be described as being limited to having both the freezing detection unit 110 and the freezing prevention unit 120.
  • the freezing detection unit 110 measures the temperature in the washing machine 100 or checks the degree of supply / drainage and transmits the information to the control unit 14, whereby the control unit 14 may detect the freezing.
  • the freezing detection unit 110 may include a temperature sensor 18 measuring air temperature or washing water temperature in the washing machine 100, and a water level sensor 20 detecting a water level in the washing machine 100.
  • the washing machine 100 may include an outer tub 2 containing wash water, and the temperature sensor 18 may be disposed in the outer tub 2.
  • the temperature sensor 20 may detect the temperature of the wash water, and in other cases, the air in the washing machine 100 may be It can detect the temperature of.
  • the washing machine 100 further includes an input unit 15 that receives various commands for overall operation of the washing machine 100 from a user.
  • the input unit 15 may of course be configured to allow a user to directly input a request command for freezing detection or freezing prevention.
  • the freezing prevention unit 120 may prevent freezing of the washing water by heating the air or the washing water inside the washing machine by using the heater 28 or other electrical equipment.
  • the heater 28 may be disposed under the outer tub 2 to heat the wash water, and may be disposed on various components constituting the washing machine 100 and heated to prevent freezing of the various components.
  • the washing machine 100 may include a server (not shown) for transmitting and receiving control information through a telephone line or an internet network.
  • the remote control apparatus 200 may include a mobile phone, a computer, a telephone, and the like.
  • the remote control apparatus 200 may receive and display whether the washing water sensed by the washing machine 100 is frozen or transmit a freezing prevention signal to the washing machine 100.
  • the remote control apparatus 200 may include an input unit 210 for inputting a user's request command for detecting whether the wash water is frozen, a display unit 220 for visually or audibly displaying whether the wash water is frozen, and an input unit 210. It may include a microcomputer 230 for transmitting a command to the communication network 150 to be described later as a signal or to display the signal received from the communication network 150 on the display unit 220.
  • the communication medium refers to a communication network 150 that performs data communication between the washing machine 100 and the remote controller 200.
  • the communication network 150 may be a power line communication medium, or a radio frequency communication medium may be used.
  • the communication network 150 allows the washing machine 100 and the remote control apparatus 200 to transmit and receive information appropriately even when the remote control apparatus 200 is located at a short distance as well as a long distance.
  • 26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
  • the user may want to detect whether the washing machine 100 is frozen in the home.
  • the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2601).
  • the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150.
  • the communication network 150 transmits a freezing detection signal to the washing machine 100.
  • the control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2603).
  • the method of detecting whether the washing water is frozen may be variously applied. have.
  • the temperature sensed by the temperature sensor 18 when the temperature sensed by the temperature sensor 18 is below the preset temperature using the temperature sensor 18, it may be determined that the wash water is frozen.
  • water supply is started to the predetermined water level through the water supply valve 6, and then the drainage pump 10 is operated to perform drainage.
  • the water level sensor 20 detects a water level change while the water is being drained. Even though the drainage proceeds for a predetermined time, when the drainage is not sufficiently performed, it may be determined that freezing occurs in the drainage assembly including the drainage pump 10 so that drainage was not normally performed. (S2603)
  • the control unit 14 determines whether the freezing in the washing machine 100, and transmits the freezing determination signal according to the remote control device 200 using the communication network 150. (S2604)
  • the microcomputer 230 of the remote control apparatus 200 may display the frozen determination signal received through the communication network 150 through the display unit 220 (S2605).
  • the user can know whether the washing machine 100 in the home is frozen even from a long distance. If it is indicated that the freezing has been performed, the user can quickly take a corresponding action, thereby reducing component failures such as the drainage assembly.
  • FIG. 27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
  • the user may want to detect whether the freezing in the washing machine at home is performed.
  • the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2701).
  • the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150.
  • the communication network 150 transmits a freezing detection signal to the washing machine 100.
  • the control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2703).
  • the freezing detection method using the freezing detection unit 110 is described above. Since it is the same as the first embodiment, description thereof will be omitted.
  • the controller 14 determines whether the washing machine 100 is frozen, and transmits the freezing determination signal to the remote controller 200 using the communication network 150 (S2704).
  • the microcomputer 230 of the remote control apparatus 200 may display the freezing determination signal received through the communication network 150 through the display unit 220 (S2705).
  • the user may input a freeze vibration prevention signal through the input unit 210 (S2706).
  • the microcomputer 230 transmits the freezing prevention signal to the washing machine 100 through the communication network 150 (S2707).
  • the washing machine 100 receiving the freeze protection signal may perform a freeze prevention operation through the freeze protection unit 120.
  • the operation for preventing freezing may be variously applied.
  • freezing may be prevented by heating the washing water using the heater 28 to increase the temperature in the washing machine 100.
  • the operation of the heater 28 may be performed until the temperature sensed by the temperature sensor reaches a preset temperature, and may be performed until the set time has elapsed from the time when the operation of the heater 28 starts.
  • control unit 14 may transmit the operation completion signal to the remote control apparatus 200 through the communication network 150.
  • the remote control apparatus 200 may display the received operation completion signal through the display unit 220. (S2710)
  • the user recognizes the content displayed on the display unit 220 and can go out or travel comfortably.
  • FIG. 28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
  • the microcomputer 230 transmits a freezing prevention signal to the washing machine 100 through the communication network 150 (S2802).
  • the control unit 14 of the washing machine 100 receiving the freezing prevention signal performs the freezing prevention operation by using the freezing prevention unit 120 (S2803).
  • the control unit 14 transmits the operation completion signal to the remote control device 200. (S2804)
  • the remote control apparatus 200 may display the received operation completion signal through the display unit 220 (S2805).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The present invention relates to a method for controlling the operation of a washing machine, which ensures the operational stability of the washing machine through proper control such as sensing freezes or preventing freezes even in an environment such as in a wintertime environment in which the temperature is low causing the washing machine to freeze, and which achieves an improvement in a management aspect such as a countermeasure taken upon the occurrence of freezing and a countermeasure taken for preventing freezing, wherein the countermeasures are taken based on the accurate information on whether or not the washing machine is frozen.

Description

세탁기의 제어방법 및 세탁기의 동결 관리 시스템Washing machine control method and freezing management system
본 발명은 세탁기의 제어방법 및 세탁기의 동결 관리 시스템에 관한 것이다.The present invention relates to a control method of a washing machine and a freezing management system of a washing machine.
일반적으로 세탁기는 세탁수가 담기는 외조와, 외조 내에 회전 가능하게 구비되어 의류 등(이하, '포'라고 한다.)을 수용하는 내조를 포함하고, 내조가 회전함에 따라 포의 세탁이 이루어진다.In general, a washing machine includes an outer tub for washing water, and an inner tub rotatably provided in the outer tub to accommodate clothes and the like (hereinafter, referred to as 'foam'), and washing of the fabric is performed as the inner tub is rotated.
세탁기는 포가 상측으로부터 투입될 수 있도록 내조가 수직하게 구비되어 수직축을 중심으로 회전하는 탑로딩 방식(top loading type)과, 포가 전방으로부터 투입될 수 있도록 내조가 수평하게 구비되고 수평축을 중심으로 회전하는 프론트 로딩 방식(front loading type)으로 구분할 수 있다.The washing machine has a top loading type in which an inner tank is vertically provided so that the foam can be fed from the upper side and rotates about a vertical axis, and the inner tank is horizontally provided so that the foam can be fed from the front and rotates about the horizontal axis. It can be divided into front loading type.
탑로딩 방식의 세탁기는 크게 교반식(agitator type)과 와류식(pulsator type)으로 구분될 수 있고, 상기 교반식은 내조의 중앙에 솟은 세탁봉을 회전시켜 세탁을 하고, 상기 와류식은 내조의 하부에 형성된 원판 모양의 펄세이터 또는 내조를 회전시켜 세탁을 한다.The washing machine of the top-loading method can be largely classified into an agitator type and a pulsator type, and the agitating type washes by rotating a laundry rod towering in the center of the inner tank, and the vortex type is located at the bottom of the inner tank. The formed disk-shaped pulsator or inner tub is rotated to wash.
프론트 로딩 방식은 통상 드럼 세탁기라고 불리우는 것으로 내조를 이루는 드럼의 내주면에 리프터가 구비되어 드럼이 회전함에 따라 리프터에 의해 포를 들어올렸다가 낙하시킴으로써 세탁을 수행한다.The front loading method is commonly referred to as a drum washing machine, and a lifter is provided on an inner circumferential surface of a drum constituting an inner tank, and as the drum rotates, the lifter lifts the cloth by the lifter and drops it.
전술한 바와 같이 다양한 형태의 세탁기가 존재하나, 어느 것이든 외조 및 /또는 내조로 세탁수를 급수하는 급수장치와, 세탁, 헹굼, 탈수 등을 수행한 후 외조로부터 세탁수를 배수시키는 배수장치를 구비한다.As described above, there are various types of washing machines, but any one of the water supply apparatus for supplying the washing water to the outer tank and / or the inner tank, and the drainage system for draining the washing water from the outer tank after washing, rinsing, dehydrating, etc. Equipped.
종래의 세탁기는 외기의 온도가 영하 이하로 떨어지는 동절기와 같은 환경에서 세탁수가 동결되어 급수장치 또는 배수장치가 정상적으로 작동하지 못하는 문제점이 발생하였다.In the conventional washing machine, washing water is frozen in an environment such as a winter season when the temperature of the outside air drops below zero, so that the water supply device or the drainage device does not operate normally.
본 발명은 세탁기가 동결되는 것을 방지할 수 있는 세탁기의 제어방법을 제공하는데 목적이 있다.An object of the present invention is to provide a control method of a washing machine that can prevent the washing machine from freezing.
또한, 본 발명은 세탁기 내부의 온도를 반영하여 설정된 동결조건에 따라 세탁기의 작동을 중지하는 세탁기의 제어방법을 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a control method of a washing machine to stop the operation of the washing machine according to the freezing conditions set by reflecting the temperature inside the washing machine.
또한, 본 발명은 세탁기 내부의 온도가 일정 수준 이하로 감지되면 이를 바로 사용자가 인지할 수 있도록 하여, 세탁기가 동결되는 것을 미연에 방지할 수 있는 세탁기의 제어방법을 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a control method of a washing machine that can prevent the freezing of the washing machine in advance by allowing the user to immediately recognize when the temperature inside the washing machine is sensed below a predetermined level.
또한, 본 발명은 세탁기가 작동되는 각단계에 따라 동결여부를 수회 판단함으로써, 동결여부를 정확하게 감지할 수 있는 세탁기의 제어방법을 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a control method of a washing machine that can accurately detect whether or not frozen by several times depending on each step of operating the washing machine.
또한, 본 발명은 세탁기의 동결여부를 감지할 수 있는 세탁기의 제어방법을 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a control method of a washing machine that can detect whether the washing machine is frozen.
또한, 본 발명은 세탁기 내부에 남아있는 잔수를 제거하여 세탁수가 동결하는 것을 방지할 수 있는 세탁기의 제어방법을 제공하는데 목적이 있다In addition, an object of the present invention is to provide a control method of a washing machine that can prevent the washing water to freeze by removing the residual water remaining in the washing machine.
또한, 본 발명은 사용자가 세탁기 내부에 남아있는 잔수 제거를 선택적으로 수행할 수 있도록 함으로써, 사용편의성을 향상시킬 수 있는 세탁기의 제어방법을 제공하는 데 있다.In addition, the present invention is to provide a control method of the washing machine to improve the ease of use by allowing the user to selectively remove the residual water remaining in the washing machine.
또한, 본 발명은 통신 매체를 활용하여 근거리 또는 원거리에서 동결을 감지하고 방지할 수 있는 세탁기의 동결 관리 시스템을 제공하는 데 있다.In addition, the present invention is to provide a freezing management system of a washing machine that can detect and prevent freezing at a short or long distance by using a communication medium.
본 발명의 세탁기의 제어방법은 온도센서를 통해 세탁기 내부의 온도를 감지하는 (a)단계; 및 상기 (a)단계에서 감지된 온도가 설정온도보다 낮을 시, 세탁기 내부에 구비된 히터를 작동시키는 (b)단계를 포함한다.The control method of the washing machine of the present invention comprises the steps of (a) detecting the temperature inside the washing machine through a temperature sensor; And (b) operating the heater provided in the washing machine when the temperature sensed in the step (a) is lower than the set temperature.
다르게는, 본 발명의 세탁기의 제어방법은 급수밸브, 배수밸브 및 배수펌프 중 적어도 하나를 구비한 세탁기의 제어방법에 있어서, 상기 세탁기에 구비된 상기 급수밸브, 배수밸브 또는 배수펌프에 구비된 온도센서를 통해 온도를 감지하는 (a)단계; 및 상기 (a)단계에서 감지된 온도가 설정온도보다 낮을 시, 상기 온도센서가 구비된 상기 급수밸브, 배수밸브 또는 배수펌프를 작동시키는 (b)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention is a control method of a washing machine having at least one of a water supply valve, a drain valve and a drain pump, the temperature provided in the water supply valve, drain valve or drain pump provided in the washing machine (A) sensing a temperature through a sensor; And (b) operating the water supply valve, the drain valve or the drain pump equipped with the temperature sensor when the temperature sensed in the step (a) is lower than the set temperature.
다르게는, 본 발명의 세탁기의 제어방법은 세탁수를 급수하기 전에, 외조 내의 수위가 설정수위 이상인 경우에 배수를 수행하는 (a)단계; 상기 (a)단계에서 배수되는데 걸리는 시간이 설정시간 이상이면 세탁기 내부의 온도를 기준온도와 비교하는 (b)단계; 및 상기 (b)단계에서 세탁기 내부의 온도가 상기 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (c)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention, before the water supply to wash water, performing the drainage when the water level in the outer tank is above the set level (a); (B) comparing the temperature inside the washing machine with a reference temperature when the time taken for draining in the step (a) is greater than or equal to a set time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the reference temperature in step (b).
다르게는, 본 발명의 세탁기의 제어방법은 외조 내로 세탁수를 급수하기 전에, 상기 외조 내의 수위가 오버 플로우가 발생하였는지 여부를 판단하기 위해 설정된 제 1 설정수위보다 높은 경우 배수를 수행하는 (a)단계; 상기 (a)단계 이후 상기 외조 내의 수위가 상기 제 1 설정수위보다 낮게 설정된 제 2 설정수위보다 높은 경우 배수를 수행하는 (b)단계; 상기 (b)단계에서 소정 수위까지 배수하는데 걸리는 시간이 소정의 배수설정시간보다 크면 세탁기 내부의 온도를 소정의 기준온도와 비교하는 (c)단계; 및 상기 (c)단계에서 세탁기 내부의 온도가 상기 소정의 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (d)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention is to perform drainage when the water level in the outer tank is higher than the first set water level set to determine whether the overflow occurred before the washing water into the outer tank (a) step; (B) performing draining when the water level in the outer tank is higher than the second set water level lower than the first set water level after the step (a); (C) comparing the temperature inside the washing machine with a predetermined reference temperature when the time taken for draining up to a predetermined water level in step (b) is greater than a predetermined drainage setting time; And (d) outputting a first error message when the temperature inside the washing machine is lower than the predetermined reference temperature in step (c).
다르게는, 본 발명의 세탁기의 제어방법은 외조 내로 세탁수를 급수하는 (a)단계; 제 1 급수설정시간 동안 세탁수가 급수된 후, 상기 외조 내의 수위가 제 1 급수설정수위보다 낮으면 세탁기 내부의 온도를 제 3 기준온도와 비교하는 (b)단계; 및 상기 (b)단계에서 세탁기 내부의 온도가 상기 제 3 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (c)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention comprises the steps of (a) watering the wash water into the outer tank; (B) comparing the temperature inside the washing machine with a third reference temperature when the water level in the outer tank is lower than the first water supply setting level after the washing water is supplied for the first water supply setting time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the third reference temperature in step (b).
다르게는, 본 발명의 세탁기의 제어방법은 외조 내로 급수가 이루어지기 전에 온도를 감지하는 (a)단계; 상기 외조 내로 급수를 하는 (b)단계; 상기 외조 내의 수위를 감지하는 (c)단계; 및 상기 (a)단계에서 감지된 온도가 기준온도보다 낮고, 제 1 설정시간 내에 상기 외조 내의 수위가 제 1 설정수위에 이르지 못하는 경우 제 5 에러메세지를 출력하는 (d)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention (a) detecting the temperature before the water supply is made into the outer tank; (B) supplying water into the tub; (C) detecting the water level in the outer tank; And (d) outputting a fifth error message when the temperature sensed in the step (a) is lower than the reference temperature and the water level in the outer tank does not reach the first set water level within the first set time.
다르게는, 본 발명의 세탁기의 제어방법은 급수밸브에 전원이 인가될 시, 상기 급수밸브의 출력전압의 변화량을 감지하는 (a)단계; 및 상기 (a)단계에서 상기 급수밸브의 출력전압이 소정값 이상 감소한 것으로 감지될 시 해동을 수행하는 (b)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the water supply valve, when power is applied to the water supply valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the water supply valve decreases by a predetermined value or more.
다르게는, 본 발명의 세탁기의 제어방법은 배수펌프에 전원이 인가될 시, 상기 배수펌프의 출력전압의 변화량을 감지하는 (a)단계; 및 상기 (a)단계에서 상기 배수펌프의 출력전압이 소정값 이상 감소한 것으로 감지될 시 해동을 수행하는 (b)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention (a) detecting the amount of change in the output voltage of the drain pump, when power is applied to the drain pump; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain pump decreases by a predetermined value or more.
다르게는, 본 발명의 세탁기의 제어방법은 배수밸브에 전원이 인가될 시, 상기 배수밸브의 출력전압의 변화량을 감지하는 (a)단계; 및 상기 (a)단계에서 상기 배수밸브의 출력전압이 소정값 이상 감소한 것으로 감지될 시 해동을 수행하는 (b)단계를 포함한다.Alternatively, the control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the drain valve, when power is applied to the drain valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain valve is reduced by a predetermined value or more.
본 발명의 세탁기의 동결 관리 시스템은 세탁수의 동결 여부를 판단하고, 상기 세탁수의 동결 여부에 대한 신호를 통신매체를 통해 외부로 송신하는 세탁기와; 상기 세탁수의 동결 여부를 상기 세탁기로부터 수신하는 원격 조정장치를 포함한다.The freezing management system of the washing machine of the present invention includes a washing machine which determines whether the washing water is frozen and transmits a signal indicating whether the washing water is frozen to the outside through a communication medium; It includes a remote control device for receiving whether the washing water is frozen from the washing machine.
다르게는, 본 발명의 세탁기의 동결 관리 시스템은 사용자가 세탁수의 동결 방지에 대한 신호를 입력하고, 상기 동결 방지신호를 통신매체를 통해 세탁기로 송신하는 원격 조정장치와; 상기 원격 조정장치로부터 상기 동결 방지 신호를 수신받고, 세탁수의 동결 방지 작동을 수행하는 세탁기를 포함한다.Alternatively, the freezing management system of the washing machine of the present invention, the user inputs a signal for preventing the freezing of the wash water, and a remote control device for transmitting the freeze protection signal to the washing machine through a communication medium; Receiving the freeze protection signal from the remote control device, and comprises a washing machine to perform the freeze protection operation of the wash water.
본 발명의 세탁기의 제어방법은, 혹한기와 같이 온도가 낮은 환경에서도 세탁기가 동결되는 것을 방지할 수 있는 효과가 있다.The control method of the washing machine of the present invention has an effect of preventing the washing machine from being frozen even in a low temperature environment such as a cold weather.
또한, 본 발명의 세탁기의 제어방법은, 동결이 발생할 수 있는 세탁기의 구성품에 직접적으로 열을 가함으로써, 상기 구성품의 동결방지 또는 해동을 효과적으로 수행할 수 있다.In addition, the control method of the washing machine of the present invention, by applying heat directly to the components of the washing machine that can cause freezing, it is possible to effectively prevent the freezing or thawing of the components.
또한, 본 발명의 세탁기의 제어방법은 세탁수와 접촉이 잦은 구성품에 열을 가하기 위한 별도의 히터를 구비할 필요 없이, 상기 구성품이 작동할 시 발생하는 자체발열을 이용하여 동결을 방지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention does not need to provide a separate heater for applying heat to a component frequently in contact with the wash water, and can prevent freezing by using self-heating generated when the component is operated. It works.
또한, 본 발명의 세탁기의 제어방법은 동결여부를 정확하게 감지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention has the effect of accurately detecting whether or not frozen.
또한, 본 발명의 세탁기의 제어방법은 세탁기가 작동되는 각단계에 따라 동결여부를 수회 판단함으로써, 동결여부를 정확하게 감지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention has the effect of accurately detecting whether the freezing by determining whether to freeze several times in accordance with each step of operating the washing machine.
또한, 본 발명의 세탁기의 제어방법은 세탁, 헹굼, 탈수 등의 소정의 행정이 시작되기 이전에 동결여부를 판단할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention has the effect that it is possible to determine whether or not frozen before a predetermined stroke of washing, rinsing, dehydration, and the like.
또한, 본 발명의 세탁기의 제어방법은 세탁기 동결 시 세탁기의 작동을 정지시켜 안전성을 확보할 수 있고, 동결발생을 알리는 에러를 외부로 출력함으로써 적절한 조치를 취할 수 있도록 유도할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention can ensure the safety by stopping the operation of the washing machine when the washing machine freezes, there is an effect that can be induced to take appropriate measures by outputting an error indicating the freezing to the outside.
또한, 본 발명의 세탁기의 제어방법은, 세탁기에 잔수가 남아 동결되는 것을 방지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention, there is an effect that can prevent the residual water remains frozen in the washing machine.
또한, 본 발명의 세탁기의 제어방법은, 세탁기가 동결된 것이 감지되면 해동을 실시함으로써 세탁기가 장시간 동안 동결상태로 방치되는 것을 방지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention has an effect of preventing the washing machine from being left in a frozen state for a long time by performing thawing when it is detected that the washing machine is frozen.
또한, 본 발명의 세탁기의 제어방법은, 급수밸브, 배수밸브 또는 배수펌프 등의 세탁기를 구성하는 전장품의 출력전압 또는 출력전류 등의 변화를 통해 동결여부를 감지함으로써 간단하면서도 정확하게 동결여부를 감지할 수 있는 효과가 있다.In addition, the control method of the washing machine of the present invention, simply or accurately detect whether the freeze by changing the output voltage or output current of the electrical equipment constituting the washing machine, such as a water supply valve, drain valve or drain pump. It can be effective.
또한, 본 발명의 세탁기의 동결 관리 시스템은, 원격지에 있는 사용자에게 세탁기의 동결에 대한 정보를 제공할 수 있는 효과가 있다. In addition, the freezing management system of the washing machine of the present invention, there is an effect that can provide information about the freezing of the washing machine to a user in a remote place.
또한, 본 발명의 세탁기의 동결 관리 시스템은, 통신 네트워크를 통해 원격지에서 세탁기의 동결 여부를 확인할 수 있다.In addition, the freezing management system of the washing machine of the present invention can confirm whether the washing machine is frozen at a remote place through a communication network.
또한, 본 발명의 세탁기의 동결 관리 시스템은, 통신 네트워크를 통해 원격적으로 세탁기의 동결 방지를 위한 동작이 수행되도록 할 수 있다.In addition, the freezing management system of the washing machine of the present invention, the operation for preventing the freezing of the washing machine can be performed remotely through a communication network.
도 1은 본 발명의 일 실시예에 따른 세탁기의 측단면도이다.1 is a side cross-sectional view of a washing machine according to an embodiment of the present invention.
도 2는 도 1에 도시된 외조의 하부를 도시한 일부 확대도이다.FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1.
도 3은 본 발명의 일 실시예에 따른 세탁기의 제어구성을 도시한 블록도이다.3 is a block diagram showing a control configuration of a washing machine according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 세탁기에서 동결방지를 위해 전원을 공급하는 구성의 일례를 도시한 것이다.Figure 4 shows an example of a configuration for supplying power to prevent freezing in the washing machine according to an embodiment of the present invention.
도 5는 본 발명의 제 1 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
도 6은 본 발명의 제 2 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
도 7은 본 발명의 제 3 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
도 8은 본 발명의 제 4 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
도 9a 내지 도 9c는 본 발명의 제 5 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
도 10은 본 발명의 일 실시예에 따른 세탁기(100)에서 동결방지를 위해 전원을 공급하는 구성의 다른 예를 도시한 것이다.10 illustrates another example of a configuration of supplying power for preventing freezing in the washing machine 100 according to an embodiment of the present invention.
도 11은 본 발명의 제 6 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention.
도 12는 본 발명의 제 7 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
도 13은 본 발명의 제 8 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
도 14는 본 발명의 제 9 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
도 15는 본 발명의 제 10 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
도 16은 본 발명의 제 11 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
도 17은 본 발명의 제 12 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
도 18은 본 발명의 제 13 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
도 19는 본 발명의 제 14 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
도 20은 본 발명의 제 15 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
도 21은 본 발명의 제 16 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
도 22는 본 발명의 제 17 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.22 is a flowchart illustrating a control method of a washing machine according to a seventeenth embodiment of the present invention.
도 23는 급수밸브가 해동될 시의 출력전압변화(a)와, 배수펌프가 해동될 시의 출력전압변화(b)를 도시한 그래프이다.FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
도 24는 본 발명의 제 18 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention.
도 25는 본 발명의 일 실시예에 따른 동결 관리 시스템의 제어 흐름을 도시한 블록도이다.25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
도 26은 세탁기의 동결 관리 방법의 제 1 실시예를 도시한 순서도이다.26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
도 27은 세탁기의 동결 관리 방법의 제 2 실시예를 도시한 순서도이다.27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
도 28은 세탁기의 동결 관리 방법의 제 3 실시예를 도시한 순서도이다.28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
본발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본발명의 개시가 완전하도록 하고, 본발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다.Advantages and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the embodiments of the present invention make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, the invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.
도 1은 본 발명의 일 실시예에 따른 세탁기(100)의 측단면도이다. 도 2는 도 1에 도시된 외조의 하부를 도시한 일부 확대도이다. 도 3은 본 발명의 일 실시예에 따른 세탁기(100)의 제어구성을 도시한 블록도이다.1 is a side cross-sectional view of a washing machine 100 according to an embodiment of the present invention. FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1. 3 is a block diagram showing a control configuration of the washing machine 100 according to an embodiment of the present invention.
도 1 내지 도 3을 참조하면, 본 발명의 일 실시예에 따른 세탁기(100)는 외관을 형성하는 캐비닛(1)과, 캐비닛(1) 내에 구비되어 세탁수가 담기는 외조(2)와, 외조(2) 내에 회전 가능하게 구비되어 세탁물을 수용하는 내조(3)와, 내조(3)의 하부에 회전가능하게 구비되는 펄세이터(4)를 포함한다. 내조(3)에는 외조(2)와 내조(3) 간에 세탁수가 유동할 수 있도록 복수의 수공(3h)이 형성된다. 외조(2)의 상부에는 내조(3)로 세탁물을 투입할 수 있도록 대략 중앙부가 개구된 탑커버(12)가 구비될 수 있다. 캐비닛(1)의 일측에는 사용자가 세탁기 작동을 제어하기 위한 각종 명령을 입력할 수 있도록 조작키들과, 세탁기의 작동 상태를 표시하는 디스플레이 등을 구비하여 사용자 인터페이스를 제공하는 컨트롤패널(11)이 배치될 수 있다.1 to 3, a washing machine 100 according to an embodiment of the present invention includes a cabinet 1 forming an appearance, an outer tub 2 provided in the cabinet 1 to contain wash water, and an outer tub. And an inner tub 3 rotatably provided in (2) to accommodate laundry, and a pulsator 4 rotatably provided below the inner tub 3. The inner tank 3 is provided with a plurality of handmade 3h so that the wash water can flow between the outer tank 2 and the inner tank 3. The upper cover 12 may be provided at an upper portion of the outer tub 2, the center cover of which the center portion is opened so that laundry can be introduced into the inner tub 3. One side of the cabinet 1 is provided with a control panel 11 that provides a user interface with operation keys and a display for displaying an operation state of the washing machine so that a user can input various commands for controlling the operation of the washing machine. Can be.
또한, 본 발명의 일 실시예에 따른 세탁기(100)는수도꼭지 등의 외부수원과 연결되어 내조(2)와 외조(3)로 세탁수를 급수하는 급수유로(5)와, 급수유로(5)를 단속하는 급수밸브(6)와, 세제를 수용하는 세제박스(7)와, 외조(2) 내의 세탁수를 배수하기 위한 배수유로(9)와, 배수유로(9)를 단속하는 배수밸브(8)와, 배수유로(9)상에 구비되는 배수펌프(10)와, 내조(3) 또는 펄세이터(4)를 선택적으로 회전시키는 구동부(13)를 포함할 수 있다.In addition, the washing machine 100 according to an embodiment of the present invention is connected to an external water source such as a faucet, the water supply passage 5 for supplying the wash water to the inner tank (2) and the outer tank (3), and the water supply passage (5) Water supply valve (6) for regulating the water, a detergent box (7) containing detergent, a drain passage (9) for draining the wash water in the outer tank (2), a drain valve for regulating the drain passage (9) 8), a drain pump 10 provided on the drain passage 9, and a drive unit 13 for selectively rotating the inner tank 3 or the pulsator 4 may be included.
구동부(13)는 회전력을 발생시키는 모터(미도시)와 상기 모터의 회전력을 내조(3) 또는 펄세이터(4)로 선택적으로 전달하는 클러치(미도시)를 포함할 수 있다.The driving unit 13 may include a motor (not shown) for generating a rotational force and a clutch (not shown) for selectively transmitting the rotational force of the motor to the inner tank 3 or the pulsator 4.
또한, 본 발명의 일 실시에에 따른 세탁기(100)는 세탁기 작동 전반을 제어하는 제어부(14)와, 동결방지를 실행하기 위한 제어명령이 입력되는 동결방지 선택부(16)와, 외조(2)에 담긴 세탁수의 수위를 감지하는 수위센서(20)와, 온도센서(18)와, 세탁기의 작동상태를 표시하는 표시부(22)와, 히터(28)를 더 포함할 수 있다.In addition, the washing machine 100 according to an embodiment of the present invention includes a control unit 14 for controlling the overall operation of the washing machine, a freezing prevention selection unit 16 to which a control command for executing freezing prevention is input, and an outer tub 2 The water level sensor 20 for detecting the level of the wash water contained in the), the temperature sensor 18, the display unit 22 for displaying the operating state of the washing machine, and the heater 28 may be further included.
히터(28)는 외조(2)의 하부에 구비될 수 있고, 도 2에 도시된 바와 같이, 외조(2) 하부에는 히터(28)를 수용하기 위한 소정의 공간을 형성하는 히터 수용부가 함몰 형성되고, 상기 히터 수용부의 상측을 덮는 히터 커버(71)가 구비될 수 있다.The heater 28 may be provided under the outer tub 2, and as shown in FIG. 2, a heater accommodating part which forms a predetermined space for accommodating the heater 28 is formed in the lower tub 2. The heater cover 71 may be provided to cover the upper side of the heater accommodating part.
히터 커버(71)에는 외조(2) 내의 세탁수가 배수될 수 있도록 홀(71h)이 형성될 수 있고, 상기 히터 수용부에는 세탁수가 배수유로(25)로 배수될 수 있도록 배수홀(74)이 형성될 수 있다. The heater cover 71 may be provided with a hole 71h to allow the washing water in the outer tub 2 to be drained, and the drain receiving hole 74 may be formed in the heater accommodating part so that the washing water may be drained to the drainage passage 25. Can be formed.
온도센서(18)는 외조(2)의 하부에 구비될 수 있다. 온도센서(18)는 외조(2) 내의 세탁수의 수위에 따라 세탁수의 온도 또는 공기의 온도를 측정한다. 즉, 온도센서(18)에 의해 감지되는 온도는 온도센서(18)와 접촉하는 매질의 온도가 될 것임은 자명한 바, 외조(2)에 내에 소정 수위 이상의 세탁수가 저수되어 온도센서(18)가 세탁수에 잠기는 경우에는 세탁수의 온도가 될 것이고, 그 외의 경우에는 공기의 온도가 될 것이다.The temperature sensor 18 may be provided at the bottom of the outer tub 2. The temperature sensor 18 measures the temperature of the washing water or the temperature of the air in accordance with the level of the washing water in the outer tank (2). That is, it is apparent that the temperature sensed by the temperature sensor 18 will be the temperature of the medium in contact with the temperature sensor 18. Thus, the washing water of a predetermined level or more is stored in the outer tank 2, so that the temperature sensor 18 If soaked in the wash water will be the temperature of the wash water, otherwise it will be the temperature of the air.
도 4는 본 발명의 일 실시예에 따른 세탁기(100)에서 동결방지를 위해 전원을 공급하는 구성의 일례를 도시한 것이다.Figure 4 shows an example of a configuration for supplying power for freezing prevention in the washing machine 100 according to an embodiment of the present invention.
도 4를 참조하면, 본 발명의 일 실시예에 따른 세탁기(100)는 제 1 전원공급부(24)와, 제 2 전원공급부(26)를 포함할 수 있다.Referring to FIG. 4, the washing machine 100 according to an embodiment of the present invention may include a first power supply unit 24 and a second power supply unit 26.
제 1 전원공급부(24)는 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기중인 상태에서 소정크기 이하의 전원을 공급하는 것으로, 제 1 전원공급부(24)에 의해 공급되는 전원에 의해 세탁기가 대기중인 상태에서도 표시부(22)가 작동될 수 있다.The first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration. The washing machine is standby by the power supplied by the first power supply unit 24. The display unit 22 can be operated even in the state of being in use.
제 2 전원공급부(26)는 상기 소정크기 이상의 전원을 공급할 수 있는 것으로 히터(28)를 작동시키기 위해 필요한 전원을 공급한다. 또한, 제 2 전원공급부(26)는 세탁, 헹굼 또는 탈수를 수행하기 위해 구동부(13)로 전원을 공급할 수 있다. The second power supply unit 26 is capable of supplying more than the predetermined size of power and supplies power required to operate the heater 28. In addition, the second power supply unit 26 may supply power to the driving unit 13 to perform washing, rinsing, or dehydration.
본원발명의 일 실시예에 따른 세탁기(100)는, 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기중인 상태에서, 세탁기를 구성하는 각종 구성품이 동결되는 것을 방지하게 위해, 온도센서(18)에 의해 온도가 감지되고, 상기 감지된 온도가 설정온도보다 낮을 시 히터(28)가 작동된다. Washing machine 100 according to an embodiment of the present invention, to prevent the various components constituting the washing machine to freeze, while washing, rinsing or dehydration is not in progress, the temperature sensor 18 The temperature is sensed by the heater, and the heater 28 is activated when the sensed temperature is lower than the set temperature.
여기서, 상기 설정온도는 세탁기가 상기 설정온도 이하의 조건에서 방치될 경우 세탁기의 각종 구성품의 동결이 이루어질 것이 예상되는 기준 온도를 의미하는 것으로, 바람직하게는 영하의 값으로 설정될 수 있다.Here, the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
한편, 온도센서(18)와 히터(28)에 공급되는 전원은 제 1 전원공급부(24) 또는 제 2 전원공급부(26) 어느 것에 의해서도 공급될 수 있으나, 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기 중에는 제 1 전원공급부(24)가 온도센서(18)에 전원을 공급하고, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮은 경우 제 1 전원공급부(26)가 히터(28)를 작동시키기 위해 전원을 공급하는 것이 바람직하다. 세탁기가 대기중인 상태에서 온도센서(18)에 의해 소비되는 전력량을 줄일 수 있는 효과가 있다.Meanwhile, the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration. The first power supply unit 24 supplies power to the temperature sensor 18 during the temporary standby time, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the first power supply unit 26 supplies the heater 28. It is desirable to supply power to operate. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
동결방지가 개시되면, 제어부(14)는 제 1 전원공급부(24)가 온도센서(18)를 작동하기 위해 전원을 공급하도록 제어하고, 이후, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시, 제 2 전원공급부(26)가 히터(28)를 작동시키기 위한 전원을 공급하도록 제어할 수 있다. When the freezing prevention is started, the control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature When lower, the second power supply 26 may be controlled to supply power for operating the heater 28.
여기서, 상기 동결방지의 개시는, 세탁기를 구성하는 각종 구성품이 동결되지 않도록 기 설정된 알고리즘이 수행되는 의미하는 것으로, 다음과 같은 두 가지 태양이 가능하다.Here, the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
첫째는, 세탁, 헹굼 또는 탈수가 수행되지 않고 세탁기가 대기중인 상태이면 자동으로 동결방지가 개시되는 것이다. 사용자가 세탁기의 동결을 방지하기 위한 별도의 조치를 취할 필요가 없는 이점이 있다.First, freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
둘째는, 도 3에 도시된 바와 같이, 세탁기에 동결방지를 선택할 수 있는 동결방지 선택부(16)를 구비하는 것으로, 사용자가 동결방지 선택부(16)를 통해 선택한 경우에 한해 동결방지가 개시되는 것이다.Second, as shown in Figure 3, the washing machine is provided with a freeze protection selection unit 16 to select the freeze protection, freeze protection starts only when the user selected through the freeze protection selection unit 16 Will be.
후술하는 도 5 내지 도 8에 도시된 동결방지 개시(S501, S601, S701, S801)는 상기 두 가지 중 어느 것이어도 무방함을 명시한다.The freeze protection start (S501, S601, S701, S801) shown in Figs. 5 to 8 to be described later may be any of the above two.
또한, 온도센서(18)는 세탁기 내부의 온도를 감지할 수 있으면 족한 것으로, 세탁수의 온도를 측정하기 위해 외조(2) 내에 구비되는 온도센서이거나, 급수밸브(6)에 구비되는 온도센서이거나, 배수밸브(8)에 구비되는 온도센서이거나, 배수펌프(10)에 구비되는 온도센서일 수 있다.In addition, the temperature sensor 18 is sufficient if it can detect the temperature inside the washing machine, the temperature sensor provided in the outer tank (2) to measure the temperature of the wash water, or the temperature sensor provided in the water supply valve (6) It may be a temperature sensor provided in the drain valve 8, or a temperature sensor provided in the drain pump 10.
한편, 구동부(13)는 모터에 구동신호를 인가하여, 상기 모터의 회전을 제어하는 구동 드라이버를 포함할 수 있다. 상기 구동 드라이버의 일례로 IPM(Intelligent Power Module)을 들 수 있으며, IPM은 전력을 제어하는 전력 MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor)이나 IGBT(Insulated Gate Bipolar Transistor)등의 전력 장치의 구동 회로나 자기보호 기능을 부가한 전원 모듈이 적용될 수 있다.On the other hand, the driving unit 13 may include a drive driver for applying a drive signal to the motor to control the rotation of the motor. An example of the driving driver may be an intelligent power module (IPM), which drives a power device such as a power MOSFET (metal-oxide-semiconductor field-effect transistor) or an insulated gate bipolar transistor (IGBT). Power modules with circuits or self-protection features can be applied.
여기서, 상기 IPM은 자체적으로 온도센서를 구비할 수 있으며, 후술하는 도 5 내지 8에서 온도감지단계(S502, S602, S702, S802)에서는 상기 IPM에 구비된 온도센서를 이용하는 것도 가능하다.Here, the IPM may be provided with a temperature sensor by itself, and in the temperature sensing steps S502, S602, S702, and S802 in FIGS. 5 to 8 to be described later, it is also possible to use the temperature sensor provided in the IPM.
한편, 본 출원의 도면에는 도시되지 않았으나, 본 발명의 세탁기의 범주에는 건조기능을 겸한 건조겸용세탁기가 포함되는 것으로 해석되어야 할 것이며, 통상의 상기 건조겸용세탁기는 세탁물을 건조시키기 위해 세탁물이 투입된 내조(3) 내로 고온의 공기를 공급하는 건조덕트와 상기 건조덕트 내의 온도를 측정하는 온도센서가 구비되는 바, 온도센서(18)는 상기 건조덕트 내의 온도를 측정하는 온도센서일 수 있음을 명시한다.On the other hand, although not shown in the drawings of the present application, the scope of the washing machine of the present invention should be interpreted to include a dry washing machine combined with a drying function, the conventional dry-use washing machine is a tank in which laundry is added to dry the laundry (3) A drying duct for supplying high temperature air and a temperature sensor for measuring the temperature in the drying duct are provided, indicating that the temperature sensor 18 may be a temperature sensor for measuring the temperature in the drying duct. .
한편, 히터(28)는 세탁기(100)를 구성하는 각종 구성품에 구비되는 것도 가능하다. 예를들어, 세탁수가 흐르는 급수밸브(6), 배수밸브(8), 배수펌프(10) 등에서 동결이 발생할 가능성이 높은바, 히터(28)는 급수밸브(6), 배수밸브(8) 및/또는 배수펌프(10)에 구비될 수 있다.In addition, the heater 28 can also be provided in the various components which comprise the washing machine 100. FIG. For example, there is a high possibility of freezing occurring in the water supply valve 6, the drain valve 8, the drain pump 10, etc., through which the washing water flows, and the heater 28 includes the water supply valve 6, the drain valve 8, and the like. It may be provided in the drain pump (10).
도 5는 본 발명의 제 1 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
동결방지가 개시되면(S501), 온도센서(18)에 의해 온도가 감지되고(S502), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시, 히터(28)가 작동된다(S503, S504). 히터(28)가 작동된 후에도 동결방지가 해제되지 않는 이상(S505), 온도센서(18)가 반복적으로 온도를 감지하고(S506), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시, 히터(28)의 작동이 중지된다(S507, S508). 이후, 다시 동결감지가 해제되었는지 여부에 따라(S505), 온도센서(18)에 의해 온도를 감지하여(S506), 감지된 온도가 상기 설정온도보다 낮을 시, 다시 히터(28)가 작동된다(S507, S504).When freezing prevention is started (S501), the temperature is sensed by the temperature sensor 18 (S502), when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the heater 28 is operated (S503) , S504). As long as the freezing prevention is not released even after the heater 28 is operated (S505), the temperature sensor 18 repeatedly detects the temperature (S506), and the temperature detected by the temperature sensor 18 again is the set temperature. When abnormal, the operation of the heater 28 is stopped (S507, S508). Then, depending on whether the freeze detection is released again (S505), by detecting the temperature by the temperature sensor 18 (S506), when the detected temperature is lower than the set temperature, the heater 28 is again operated ( S507, S504).
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 히터(28)의 작동(S504)과 중지(S508)가 반복되는 것은, 동결방지가 해제되기 전까지 계속된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeated operation (S504) and stop (S508) of the heater 28 in accordance with the temperature sensed by the temperature sensor 18 as described above continues until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 6은 본 발명의 제 2 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
동결방지가 개시되면(S601), 온도센서(18)에 의해 온도가 감지되고(S602), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 히터(28)가 작동된다(S603, S604). 히터(28)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 반복적으로 온도를 감지하고(S605), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 히터(28)의 작동이 중지된다(S606, S608). When freezing prevention is started (S601), the temperature is sensed by the temperature sensor 18 (S602), the heater 28 is operated when the temperature sensed by the temperature sensor 18 is lower than the set temperature (S603, S604). The temperature sensor 18 repeatedly detects the temperature as long as the freezing protection is not released even after the heater 28 is operated (S605), and when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature, the heater ( The operation of 28 is stopped (S606, S608).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 히터(28)의 작동이 중지된다.(S606, S607, S608) 상기 설정시간은 히터(28)의 발열 정도를 고려하여, 히터(28)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in the present embodiment, even when the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the heater 28 is stopped when the set time has elapsed (S606, S607, S608). In consideration of the degree of heat generation of the heater 28, the heater 28 may be set within a range so as not to overheat.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S609), 온도센서(18)가 주기적으로 온도를 감지하고(S602), 감지된 온도가 상기 설정온도보다 낮을시(S603) 히터(28)가 다시 작동(S604)된다.Then, depending on whether the freeze detection is released again (S609), the temperature sensor 18 periodically detects the temperature (S602), and when the detected temperature is lower than the set temperature (S603), the heater 28 again Operation S604 is performed.
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 히터(28)의 작동(S604)과 중지(S608)가 반복되는 것은, 동결방지가 해제되기 전까지 반복된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeated operation (S604) and stop (S608) of the heater 28 in accordance with the temperature sensed by the temperature sensor 18 as described above is repeated until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 7은 본 발명의 제 3 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
동결방지가 개시되면(S701), 온도센서(18)에 의해 온도가 감지되고(S702), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시(S703), 히터(28)의 작동과 중지가 반복된다(S704). 히터(28)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 반복적으로 온도를 감지하고(S705, S706), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 히터(28)의 작동이 정지된다(S707, S708). When freezing prevention is started (S701), the temperature is sensed by the temperature sensor 18 (S702), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (S703), the operation of the heater 28 And stop is repeated (S704). When the freezing protection is not released even after the heater 28 is operated, the temperature sensor 18 repeatedly detects the temperature (S705 and S706), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature. The operation of the heater 28 is stopped (S707, S708).
여기서, S704단계에서는 히터(28)가 작동되지 않는 구간을 '중지'라고 하고, S708단계에서는 '정지'라고 한 것은, S704단계와 S708단계는 히터(28)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S704단계는 소정시간 동안 히터(28)가 작동 및 중지를 반복하는 반면, S708단계에서 작동이 정지된 히터(28)는, S708단계에서 S705단계로 리턴하여 S706단계와 S707단계를 수행하여 다시 작동되기 전까지 작동하지 않고 대기한다.Here, in step S704, the section in which the heater 28 is not operated is called 'stop', and in step S708, 'stop' is because the steps S704 and S708 are different in the operation method of the heater 28. to be. That is, in step S704, while the heater 28 is repeatedly operated and stopped for a predetermined time, the heater 28, in which operation is stopped in step S708, returns to step S705 from step S708 to perform steps S706 and S707. Wait for it not to work again.
한편, S707단계에서, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮은 경우에는 다시 S704단계로 리턴하여 히터(28)의 작동과 중지가 반복된다.On the other hand, in step S707, when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the process returns to step S704 again to repeat the operation and stop of the heater 28.
제 3 실시예는 온도센서(18)에 의해 감지된 온도(S702)가 설정온도보다 낮은 경우, 히터(28)를 연속하여 작동시키는 것이 아니라 작동 및 중지가 반복되도록 하는 점(S704)에서 전술한 제 1 실시예와 차이가 있다.In the third embodiment, when the temperature S702 sensed by the temperature sensor 18 is lower than the set temperature, the operation and the stop are repeated instead of continuously operating the heater 28, and thus, the operation S704 is repeated. There is a difference from the first embodiment.
한편, S705단계에서의 동결방지 해제는, 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the freeze protection release in step S705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
도 8은 본 발명의 제 4 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
동결방지가 개시되면(S801), 온도센서(18)에 의해 온도가 감지되고(S802), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 히터(28)의 작동과 중지가 반복된다(S803, S804). 히터(28)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 반복적으로 온도를 감지하고(S805), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시(S806) 히터(28)의 작동이 정지된다(S808).When freezing prevention is started (S801), the temperature is sensed by the temperature sensor 18 (S802), when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the operation and the stop of the heater 28 is repeated (S803, S804). When the freezing protection is not released even after the heater 28 is operated, the temperature sensor 18 repeatedly detects the temperature (S805), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature (S806). ) The operation of the heater 28 is stopped (S808).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 히터(28)의 작동이 정지된다.(S806, S807, S808) 상기 설정시간은 히터(28)의 발열 정도를 고려하여, 히터(28)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in the present embodiment, even when the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the heater 28 is stopped when the set time has elapsed (S806, S807, S808). In consideration of the degree of heat generation of the heater 28, the heater 28 may be set within a range so as not to overheat.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S809), 온도센서(18)가 주기적으로 온도를 감지(S802)하고, 감지된 온도가 상기 설정온도보다 낮을시 다시 히터(28)가 작동된다(S803, S804).Thereafter, depending on whether the freeze detection is released again (S809), the temperature sensor 18 periodically detects the temperature (S802), and when the detected temperature is lower than the set temperature, the heater 28 is operated again ( S803, S804).
여기서, S804단계에서는 히터(28)가 작동되지 않는 구간을 '중지'라고 하고, S808단계에서는 '정지'라고 한 것은, S804단계와 S808단계는 히터(28)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S804단계는 소정시간 동안 히터(28)가 작동 및 중지를 반복하는 반면, S808단계에서 작동이 정지된 히터(28)는, S809단계에서 S802단계로 리턴하여 S804단계에서 다시 작동되기 전까지 작동하지 않고 대기한다.Here, in step S804, the section in which the heater 28 is not operated is called 'stop', and in step S808, 'stop' is that the steps S804 and S808 are different in the operation method of the heater 28. to be. That is, in step S804, the heater 28 repeatedly operates and stops for a predetermined time, while the heater 28, in which operation is stopped in step S808, is operated until the step 28 returns from step S809 to step S802 to operate again in step S804. Wait without.
한편, S809단계의 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the release of the freeze protection of step S809 may be conditional on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
도 9a 내지 도 9c는 본 발명의 제 5 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
본 발명의 일 실시예에 따른 세탁기(100)는 세탁, 헹굼 또는 탈수를 진행하기 위해 세탁기가 작동된 후, 세탁기가 동결되었는지 여부를 감지하는 과정을 수행할 수 있다.The washing machine 100 according to an embodiment of the present invention may perform a process of detecting whether the washing machine is frozen after the washing machine is operated to proceed with washing, rinsing, or dehydration.
본 발명의 일 실시예에 따른 세탁기(100)는, 세탁기에 전원이 인가된 후 외조(2) 내의 수위를 제 1 설정수위와 비교하여 오버 플로우가 발생하였는지 여부를 판단하고 그 판단 결과에 따라 배수를 수행하는 도 9a에 도시된 일련의 흐름을 통한 제 1 차 동결여부 판단과, 외조(2) 내의 수위를 제 2 설정수위와 비교하여, 제 2 설정수위 이상인 경우 배수를 수행하는 도 9b에 도시된 일련의 흐름을 통한 제 2 차 동결여부 판단과, 세탁, 헹굼, 탈수 등의 행정 수행을 위해 외조(2) 내로 세탁수를 급수한 이후 도 9c에 도시된 일련의 흐름을 통한 제 3 차 동결여부를 판단함으로써 세탁기의 동결 여부를 정확하게 판단할 수 있다.The washing machine 100 according to an embodiment of the present invention determines whether an overflow occurs by comparing the water level in the outer tub 2 with the first set water level after power is applied to the washing machine, and draining the water according to the determination result. The first freeze determination through the series of flows shown in FIG. 9A and the water level in the outer tank 2 are compared with the second set water level, and the drainage is performed when the water level is greater than or equal to the second set water level. The third freeze through the series of flows shown in Figure 9c after the water is supplied to the outer tank (2) for judging whether the second freeze through the series of flows, and washing, rinsing, dehydration, etc. By determining whether or not the washing machine is frozen can be accurately determined.
이하, 도 9a를 참조하여, 제 1 차 동결여부 판단과정을 구체적으로 살펴본다.Hereinafter, the first freeze determination process will be described in detail with reference to FIG. 9A.
전원이 인가되고 세탁기의 작동이 시작되면(S901), 수위센서(20)에 의해 외조(2) 내의 수위가 감지되고, 그 감지값을 제 1 설정수위와 비교함으로써 외조(2) 내에 오버플로우가 발생하였는지를 판단한다(S902). 이러한 과정을 수행하는 이유는 세탁기가 작동하기 전에 발생한 특별한 사정에 의해 외조(2)내에 세탁수가 차오르고, 그 양이 일정수준을 넘어 외조(2)를 넘쳤는지 여부를 감지하기 위한 것이다. 예를 들면, 급수밸브(6)에 이상이 생겨 세탁기의 전원이 오프된 상태에서도 외조(2) 내로 계속적으로 세탁수가 급수된 경우를 들 수 있다. 따라서, 제 1 설정수위는 외조(2)로부터 세탁수가 넘치는 수위를 고려하여 설정되는 것이 바람직하다.When the power is applied and operation of the washing machine starts (S901), the water level in the outer tank 2 is detected by the water level sensor 20, and the overflow in the outer tank 2 is compared with the detected value by the first set level. It is determined whether it has occurred (S902). The reason for performing this process is to detect whether the washing water in the outer tank (2) is filled by the special circumstances that occurred before the washing machine is operated, the amount exceeded a certain level and overflowed the outer tank (2). For example, the abnormality arises in the water supply valve 6, and the case where wash water is continuously supplied into the outer tank 2 even if the washing machine is turned off. Accordingly, it is preferable that the first set water level is set in consideration of the water level overflowing from the outer tub 2.
S902단계에서 외조(2) 내의 수위가 제 1 설정수위 보다 높은 것으로 판단되면 제어부(14)는 표시부(22)를 통해 제 3 에러 메세지가 출력되도록 한다(S903). 제 3 에러 메세지는 오버플루우가 발생하였음을 사용자가 인지할 수 있도록 출력되는 메세지이다.If it is determined in step S902 that the water level in the outer tub 2 is higher than the first set water level, the controller 14 causes the display unit 22 to output a third error message (S903). The third error message is a message output so that the user can recognize that an overflow has occurred.
이후, 제어부(14)는 배수펌프(10)를 작동시켜 외조(2) 내의 세탁수가 배수되도록 하고(S904), 소정의 시간 내에 외조(2) 내의 수위가 제 2 설정수위보다 낮아진 경우(S905)에는 제 3 에러 메세지를 오프(OFF)시킨다(S906), 제 2 설정수위는 외조(2) 내의 세탁수가 모두 배수된 상태인 공수위로 설정되는 것이 바람직하다. 이하, 제 2 설정수위는 공수위인 것으로 설명한다.Thereafter, the controller 14 operates the drainage pump 10 to drain the wash water in the outer tub 2 (S904), and when the water level in the outer tub 2 is lower than the second set level within a predetermined time (S905). The third error message is turned OFF (S906), and the second set water level is preferably set to an air supply level in which the washing water in the outer tub 2 is drained. Hereinafter, it will be described that the second set water level is an air level.
한편, S905단계에서 외조(2) 내의 수위가 제 2 설정수위에 도달하지 못한 경우에는 계속적으로 배수펌프(10)가 작동되고, 배수시간이 제 1 밸수설정시간에 이르기까지 외조(2) 내의 수위가 제 2 설정수위에 도달하지 못한 경우(S907), 제어부(14)는 온도센서(18)에 의해 감지된 온도를 제 1 기준온도와 비교하고(S908), 그 결과 상기 감지된 온도가 제 1 기준온도보다 낮은 것으로 판단되면 표시부(22)를 통해 제 1 에러 메세지를 표시하고, 상기 감지된 온도가 제 1 기준온도보다 높은 것으로 판단되면 표시부(22)를 통해 제 2 또는 3 에러 메세지가 출력되도록 한다(S910).On the other hand, when the water level in the outer tank 2 does not reach the second set level in step S905, the drainage pump 10 is continuously operated, and the water level in the outer tank 2 until the drainage time reaches the first value set time. Does not reach the second set water level (S907), the controller 14 compares the temperature detected by the temperature sensor 18 with the first reference temperature (S908), and as a result, the detected temperature is the first When it is determined that the temperature is lower than the reference temperature, the first error message is displayed on the display unit 22. When the detected temperature is determined to be higher than the first reference temperature, the second or third error message is output through the display unit 22. (S910).
이하, 도 9b를 참조하여, 제 2 차 동결여부 판단과정을 구체적으로 살펴본다.Hereinafter, the second freeze determination process will be described in detail with reference to FIG. 9B.
제 2 차 동결여부 판단과정은 외조(2) 내에 수위가 제 1 설정수위보다 낮은 조건에서 수행된다. 즉, S902단계에서 수위센서(20)에 의해 감지된 수위가 제 1 설정수위 보다 낮은 것으로 판단된 경우 또는 S902, S903, S904, S905, S906단계를 거쳐 외조(2) 내의 수위가 제 2 설정수위 보다 낮아진 경우, 이후 수행되는 과정에서 동결여부를 판단하기 위한 것이다.The second freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than the first set water level. That is, when it is determined that the water level detected by the water level sensor 20 is lower than the first set water level in step S902 or through the steps S902, S903, S904, S905, and S906, the water level in the outer tank 2 becomes the second set water level. If lower, it is to determine whether or not frozen in the subsequent process.
제 2 차 동결여부 판단과정은 온도센서(18)에 의해 감지된 온도를 제 2 기준온도와 비교하는단계를 포함한다(S911). S911단계에서 상기 감지된 온도가 제 2 기준온도 이하인 경우 제어부(14)는 표시부(22)를 통해 제 1 에러 메세지가 출력되도록 제어한다(S912).The second freezing determination process includes comparing the temperature sensed by the temperature sensor 18 with the second reference temperature (S911). If the sensed temperature is less than or equal to the second reference temperature in step S911, the controller 14 controls the first error message to be output through the display unit 22 (S912).
S911단계에서의 외조(2) 내의 수위는 제 1 설정수위 이하(S902 이후 바로 S911로 진입할 시에 가능한 경우임.) 또는 제 2 설정수위 이하가 될 수 있다(이는, S903, S904, S905, S906을 차례로 수행한 이후 외조(2)의 수위가 공수위가 된 경우를 예로 들 수 있음.). 외조(2)의 수위가 제 2 설정수위 보다 높고, 제 1 설정수위 보다 낮은 경우, 온도센서(18)는 외조(2) 내의 세탁수의 온도를 감지할 것이다. 반면에 외조(2)의 수위가 제 2 설정수위 보다 낮은 경우(예를 들어, 공수위)인 경우에는 온도센서(18)는 세탁기 내부의 공기의 온도를 감지할 것이다. 제 2 기준 온도는 세탁수의 어는점을 고려하여 영하의 값으로 설정되는 것이 바람직하고, 온도센서(18)에 의해 공기의 온도가 감지되는 경우를 고려하면 영하 수도 이하로 설정되는 것도 가능하다.The water level in the outer tank 2 in step S911 may be equal to or less than the first set level (if possible when entering S911 immediately after S902) or may be less than or equal to the second set level (this is S903, S904, S905, For example, if the water level in the outer shell (2) becomes the airborne level after performing S906 in sequence.). If the water level of the outer tub 2 is higher than the second set level and lower than the first set level, the temperature sensor 18 will sense the temperature of the wash water in the outer tub 2. On the other hand, if the water level of the outer tank 2 is lower than the second set water level (for example, the air level), the temperature sensor 18 will detect the temperature of the air inside the washing machine. The second reference temperature is preferably set to a subzero value in consideration of the freezing point of the wash water, and may be set below the below zero degree considering the case where the temperature of the air is sensed by the temperature sensor 18.
S911단계에서 온도센서(18)에 의해 감지된 온도가 제 2 기준온도보다 낮다고 판단되는 경우 제어부(14)는 세탁기 내부의 온도가 동결이 이루어질 수 있을 정도로 충분히 낮은 것으로 판단하고 바로 표시부(22)를 통해 제 1 에러 메세지가 출력되도록 한다(S912). S911 및 S912단계의 수행을 통한 동결여부 감지는 세탁수의 배수특성과는 무관하게 온도센서(18)에 의한 감지값만을 근거로 동결여부를 판단 또는 예측하는 것인바, 반드시 도 9b에 도시된 순서에 의해 한정되는 것은 아니며, 세탁기 작동과정 중의 어느 시점에서나 수행될 수 있을 것이다.If it is determined in step S911 that the temperature sensed by the temperature sensor 18 is lower than the second reference temperature, the controller 14 determines that the temperature inside the washing machine is low enough to freeze, and immediately changes the display unit 22. The first error message is output through the operation S912. Whether to detect the freezing by performing the steps S911 and S912 is to determine or predict whether to freeze based on the detection value by the temperature sensor 18, regardless of the drainage characteristics of the wash water, the sequence shown in Figure 9b The present invention is not limited thereto, and may be performed at any point in the washing machine operation process.
특히, S911단계에서는 온도센서(18)에 의해 감지된 온도가 제 2 설정온도 이하이면 세탁기의 구성품, 예를 들어 급수밸브(6) 또는 배수펌프(10) 등이 동결될 것임을 충분한 정확도로 예측될 수 있도록, 제 2 설정온도는 실험에 의해 적절한 값으로 설정되는 것이 바람직하다.Particularly, in step S911, if the temperature sensed by the temperature sensor 18 is less than or equal to the second set temperature, it may be predicted with sufficient accuracy that the components of the washing machine, for example, the water supply valve 6 or the drain pump 10, will be frozen. Preferably, the second set temperature is preferably set to an appropriate value by experiment.
한편, S911단계에서 온도센서(18)에 의해 감지된 온도가 제 2 기준온도보다 높은 것으로 판단되면 제어부(14)는 수위센서(20)에 의해 감지된 수위를 제 3 설정수위와 비교한다(S913).On the other hand, if it is determined in step S911 that the temperature sensed by the temperature sensor 18 is higher than the second reference temperature, the controller 14 compares the level detected by the level sensor 20 with the third set level (S913). ).
상기 감지된 수위가 제 3 설정수위 보다 높은 경우는 외조(2) 내에 제 3 수위 이상 제 1 설정수위 이하의 세탁수가 존재하는 경우를 의미하고, 이 경우 제어부(14)는 배수펌프(10)를 작동시켜 배수가 수행되도록 하고(S915), 제 2 배수설정시간 동안 배수를 수행하여 외조(2) 내의 수위 변동값이 기준값 이상이면(S916) 정상적으로 배수가 이루어지고 있는 것으로 판단하고 포량을 감지하고(S914), S916단계에서 수위 변동값이 제 2 배수설시간이 경과(S917)하였음에도 불구하고 기준값 이하이면 온도센서(18)에 의해 감지된 온도와 제 3 기준온도를 비교하여(S918), 제어부(14)는 상기 감지된 온도가 제 3 기준온도 보다 낮은 경우 표시부(22)를 통해 제 1 에러 메세지가 출력되도록 제어하고(S919), 상기 감지된 온도가 제 3 기준온도보다 높은 경우는 표시부(22)를 통해 제 2 에러 메세지가 출력되도록 제어한다(S920).제 3 차 동결여부 판단과정은 외조(2) 내의 수위가 제 3 설정수위 이하인 조건 하에서 수행되고, 도 9b에 도시된 포량 감지단계(S914) 이후에 수행될 수 있다.When the sensed water level is higher than the third set water level, it means a case in which the washing water having a third level or more and a first set water level or less exists in the outer tub 2, and in this case, the controller 14 controls the drain pump 10. When the drainage is performed (S915), the drainage is performed during the second drainage setting time, and when the water level change value in the outer tank 2 is equal to or greater than the reference value (S916), it is determined that drainage is normally performed and the amount of water is detected ( In operation S914 and step S916, if the water level change value is less than the reference value despite the second drainage time elapsed (S917), the temperature detected by the temperature sensor 18 is compared with the third reference temperature (S918). 14, if the detected temperature is lower than the third reference temperature, the first error message is output through the display unit 22 (S919). If the detected temperature is higher than the third reference temperature, the display unit 22 is displayed. 2nd error via) The message is controlled to be output (S920). The third freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than or equal to the third set water level, and is performed after the quantity of water detection step S914 shown in FIG. 9B. Can be.
S914단계에서 내조(6) 내의 포량이 감지되면, 감지된 포량에 따라 이후 수행되는 세탁, 헹굼, 탈수 등의 각 행정의 패턴이 정해진다.If the amount of water in the inner tank (6) is detected in step S914, the pattern of each stroke, such as washing, rinsing, dehydration, etc., which is subsequently performed according to the detected amount of water, is determined.
급수(S921)는 외조(2) 내로 세탁수를 급수하는단계며, 이때 급수되는 세탁수의 양 역시 S914단계에서 감지된 포량에 따라 설정된다.The water supply (S921) is a step of watering the wash water into the outer tank (2), the amount of wash water is also set according to the detected amount of water in step S914.
S921단계에서 급수가 시작된 후, 제 1 급수설정 시간이 경과하면(S922) 급수가 정상적으로 이루어지는지 여부를 판단하기 위해 외조(2)의 수위를 제 1 급수설정수위와 비교하는 S923단계가 수행되고, 제어부(14)는 수위센서(20)에 의해 감지된 수위가 제 1 급수설정수위 이상이면 급수가 정상적으로 이루어진 것으로 판단하고 제 2 급수설정시간 경과 후(S924) 다시 외조(2) 내의 수위를 제 2 급수설정수위와 비교한다(S928). 여기서 제 1 급수설정수위는 제 1 급수설정시간 동안에 정상적인 급수가 수행될 시 도달이 예상되는 수위를 의미하고, 제 2 급수설정수위는 S914단계에서 감지된 포량에 따라 외조(2) 내로 급수되는 목표수위를 의미한다.After the water supply is started in step S921, when the first water supply setting time elapses (S922), in order to determine whether the water supply is normally performed, step S923 comparing the water level of the outer tub 2 with the first water supply setting water level is performed, The controller 14 determines that the water supply is normally performed when the water level detected by the water level sensor 20 is greater than or equal to the first water supply setting level, and after the second water supply setting time has elapsed (S924), the water level in the outer tub 2 is reconstructed. It compares with the water supply setting level (S928). Here, the first water supply set water level refers to a water level that is expected to be reached when normal water supply is performed during the first water supply set time, and the second water supply set water level is a target watered into the outer tank 2 according to the detected quantity in step S914. It means water level.
한편, S923단계에서 외조(2) 내의 수위가 제 1 급수설정수위에 도달하지 못한 것으로 판단되면 제어부(14)는 온도센서(18)에 의해 감지된 온도를 제 4 기준온도와 비교하고(S925), 비교결과 상기 감지된 온도가 제 4 기준온도 보다 낮은 경우에는 표시부(22)를 통해 제 1 에러 메세지가 표시되도록 제어하고, 반대로 상기 감지된 온도가 제 4 기준온도 보다 높은 경우에는 제 4 에러 메세지가 출력되도록 제어한다. 여기서, 제 4 에러 메세지는 급수밸브(6) 등의 고장으로 급수가 정상적으로 이루어지지 못함을 사용자에게 알리는 메세지이다.On the other hand, if it is determined in step S923 that the water level in the outer tank 2 has not reached the first water supply setting level, the controller 14 compares the temperature detected by the temperature sensor 18 with the fourth reference temperature (S925). In contrast, when the detected temperature is lower than the fourth reference temperature, the display unit 22 controls the first error message to be displayed. On the contrary, when the detected temperature is higher than the fourth reference temperature, the fourth error message is controlled. Control the output. Here, the fourth error message is a message for notifying the user that water supply is not normally performed due to a failure of the water supply valve 6 or the like.
한편, S928단계에서 수위센서(20)에 의해 감지된 수위가 제 2 급수설정수위에 미치지 못한 경우에도 제어부(14)는 표시부(22)를 통해 제 4 에러 메세지가 표시되도록 제어할 수 있다(S929).Meanwhile, even when the water level detected by the water level sensor 20 in step S928 does not reach the second water supply setting level, the controller 14 may control the display unit 22 to display the fourth error message in operation S929. ).
반대로, S928단계에서 수위센서(20)에 의해 감지된 수위가 제 2 급수설정수위 보다 높으면 정상적으로 급수가 이루어진 경우이고, 이후, 제어부(14)는 기 설정된 알고리즘에 의해 제 1 세탁(S930), 히터(28)를 작동시켜 외조(2) 내의 세탁수를 가열(S911), 제 2 세탁(S932), 배수(S933)를 통한 세탁행정을 수행한다. 여기서 상기 제 1 세탁(S930), 제 2 세탁(S933)시 내조(6) 및/또는 펄세이터(4)가 회전하고, 배수(S933)는 배수펌프(10)에 의해 이루어진다.On the contrary, if the water level detected by the water level sensor 20 in step S928 is higher than the second water supply setting level, water supply is normally performed. After that, the control unit 14 performs the first washing (S930) and the heater by a preset algorithm. The operation 28 is performed to wash the washing water in the tub 2 by heating (S911), second washing (S932), and draining (S933). Here, the inner tub 6 and / or the pulsator 4 rotate in the first washing operation S930 and the second washing operation S933, and the drainage S933 is performed by the drain pump 10.
배수(S933)가 제 3 배수설정시간 동안 이루어진 후(S939)에도 외조(2) 내의 수위가 배수완료수위에 도달하지 못한 경우, 제어부(14)는 표시부(22)를 통해 제 2 에러 메세지가 표시되도록 제어한다(S940). 반대로, S934단계에서 외조(2) 내의 수위가 배수완료수위 이하인 것으로 판단되면 배수가 정상적으로 이루어진 경우인 바, 이후, 헹굼(S935), 간이탈수(S936), 본탈수(S937) 등이 수행된 후 세탁기의 전원이 오프(OFF)(S938) 됨으로써 세탁기의 작동이 완료된다.If the water level in the outer tank 2 does not reach the drainage completion level even after the drainage water S933 has been made for the third drainage setting time (S939), the control unit 14 displays the second error message through the display unit 22. It is controlled to (S940). On the contrary, if it is determined that the water level in the outer tank (2) is below the drainage completion level in step S934, the drainage is normally performed, and then, after rinsing (S935), simple dehydration (S936), and main dehydration (S937), etc. Operation of the washing machine is completed by turning off the power of the washing machine (OFF) (S938).
도 10은 본 발명의 일 실시예에 따른 세탁기에서 동결방지를 위해 전원을 공급하는 구성의 다른 예를 도시한 것이다.10 illustrates another example of a configuration of supplying power for preventing freezing in a washing machine according to an embodiment of the present invention.
도 10을 참조하면, 본 실시예에 따른 세탁기는 제 1 전원공급부(24)와, 제 2 전원공급부(26)를 포함한다.Referring to FIG. 10, the washing machine according to the present embodiment includes a first power supply unit 24 and a second power supply unit 26.
제 1 전원공급부(24)는 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기중인 상태에서 소정크기 이하의 전원을 공급하는 것으로, 제 1 전원공급부(24)에 의해 공급되는 전원에 의해 세탁기가 대기중인 상태에서도 표시부(22)가 작동될 수 있다.The first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration. The washing machine is standby by the power supplied by the first power supply unit 24. The display unit 22 can be operated even in the state of being in use.
제 2 전원공급부(26)는 상기 소정크기 이상의 전원을 공급할 수 있는 것으로, 급수밸브(6), 배수밸브(8) 및 배수펌프(10)를 작동시키기 위해 필요한 전원을 공급한다. 한편, 제 2 전원공급부(26)를 통해 세탁, 헹굼 또는 탈수시 구동부(13)로 전원이 공급될 수 있다.The second power supply unit 26 may supply power over the predetermined size, and supply power required to operate the water supply valve 6, the drain valve 8, and the drain pump 10. Meanwhile, power may be supplied to the driving unit 13 during washing, rinsing, or dehydration through the second power supply unit 26.
본 실시예에 따른 세탁기는, 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기중인 상태에서, 세탁기를 구성하는 각종 구성품이 동결되는 것을 방지하기 위해, 온도센서(18)에 의해 온도가 감지되고, 상기 감지된 온도가 설정온도 보다 낮을 시 세탁기를 구성하는 각종 구성품을 작동시켜, 상기 구성품의 작동시 발생하는 자체발열을 통해 동결을 방지한다.In the washing machine according to the present embodiment, the temperature is sensed by the temperature sensor 18 in order to prevent the various components constituting the washing machine from being frozen while the washing machine is in the standby state without washing, rinsing, or dehydration. When the sensed temperature is lower than the set temperature, various components constituting the washing machine are operated to prevent freezing through self-heating generated when the component is operated.
여기서, 상기 설정온도는 세탁기가 상기 설정온도 이하의 조건에서 방치될 경우 세탁기의 각종 구성품의 동결이 이루어질 것이 예상되는 기준 온도를 의미하는 것으로, 바람직하게는 영하의 값으로 설정될 수 있다.Here, the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
한편, 온도센서(18)와 히터(28)에 공급되는 전원은 제 1 전원공급부(24) 또는 제 2 전원공급부(26) 어느 것에 의해서도 공급될 수 있으나, 세탁, 헹굼 또는 탈수가 진행되지 않고 세탁기가 대기 중에는 제 1 전원공급부(24)가 온도센서(18)에 전원을 공급하고, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮은 경우 제 2 전원공급부(26)가 히터(28), 급수밸브(6), 배수밸브(10) 또는 배수펌프(10)를 작동시키기 위해 전원을 공급하는 것이 바람직하다. 세탁기가 대기중인 상태에서 온도센서(18)에 의해 소비되는 전력량을 줄일 수 있는 효과가 있다.Meanwhile, the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration. During the standby, the first power supply unit 24 supplies power to the temperature sensor 18, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the second power supply unit 26 supplies the heater 28. In order to operate the water supply valve 6, the drain valve 10 or the drain pump 10, it is preferable to supply power. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
동결방지가 개시되면, 제어부(14)는 제 1 전원공급부(24)가 온도센서(18)를 작동하기 위해 전원을 공급하도록 제어하고, 이후, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시, 제 2 전원공급부(26)가 급수밸브(6), 배수밸브(8) 또는 배수펌프(10)를 작동시키기 위한 전원을 공급하도록 제어할 수 있다. When the freezing prevention is started, the control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature When lower, the second power supply 26 may be controlled to supply power for operating the water supply valve 6, the drain valve 8, or the drain pump 10.
여기서, 상기 동결방지의 개시는, 세탁기를 구성하는 각종 구성품이 동결되지 않도록 기 설정된 알고리즘이 수행되는 의미하는 것으로, 다음과 같은 두가지 태양이 가능하다.Here, the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
첫째는, 세탁, 헹굼 또는 탈수가 수행되지 않고 세탁기가 대기중인 상태이면 자동으로 동결방지가 개시되는 것이다. 사용자가 세탁기의 동결을 방지하기 위한 별도의 조치를 취할 필요가 없는 이점이 있다.First, freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
둘째는, 도 10에 도시된 바와 같이, 세탁기의 동결방지를 선택할 수 있는 동결방지 선택부(16)를 구비하는 것으로, 사용자가 동결방지 선택부(16)를 통해 선택한 경우에 한해 동결방지가 개시되는 것이다.Secondly, as shown in FIG. 10, a freezing prevention selection unit 16 capable of selecting freezing prevention of the washing machine is provided, and the freezing prevention starts only when the user selects the freezing prevention selection unit 16. Will be.
후술하는 도 11 내지 도 18에 도시된 동결방지 개시(S1101, S1201, S1301, S1401, S1501, S1601, S1701, S1801)은 상기 두 가지 중 어느 것이어도 무방함을 명시한다.The freeze protection start (S1101, S1201, S1301, S1401, S1501, S1601, S1701, and S1801) shown in FIGS. 11 to 18 to be described later may specify which of the two.
또한, 본 발명의 온도센서(18)는 급수밸브(6), 배수밸브(8) 또는 배수펌프(10) 중 어느 것에도 구비될 수 있으며, 후술하는 실시예들에서 보다 상세하게 설명하기로 한다.In addition, the temperature sensor 18 of the present invention may be provided in any of the water supply valve 6, the drain valve 8 or the drain pump 10, which will be described in more detail in the following embodiments. .
이하, 도 11 내지 도 18을 참조하여, 급수밸브(6)의 동결방지방법의 실시예들을 설명한다. 다만, 도 11 내지 도 18에 도시된 동결방지방법은 배수밸브(8)의 동결방지를 위해서도 동일하게 적용될 수 있으며, 이 경우 온도센서(18)는 배수밸브(10)에 구비되고, 온도센서(18)의 감지값에 따라 배수밸브(10)의 작동여부가 결정되는 점에서만 차이가 있을 뿐임을 명시한다.Hereinafter, embodiments of the freezing prevention method of the water supply valve 6 will be described with reference to FIGS. 11 to 18. However, the freezing prevention method illustrated in FIGS. 11 to 18 may be similarly applied to prevent the freezing of the drain valve 8, and in this case, the temperature sensor 18 is provided in the drain valve 10 and the temperature sensor ( It is specified that there is only a difference in that the operation of the drain valve 10 is determined according to the detected value of 18).
도 11은 본 발명의 제 6 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 본 실시예에서 온도센서(18)는 급수밸브(6)에 구비된다.11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention. In this embodiment, the temperature sensor 18 is provided in the water supply valve (6).
동결방지가 개시되면(S1101), 온도센서(18)에 의해 온도가 감지되고(S1102), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 급수밸브(6)가 작동된다(S1103, S1104). 급수밸브(6)가 작동된 후에도 동결방지가 해제되지 않는 이상, 온도센서(18)가 반복적으로 온도를 감지하고(S1106), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 급수밸브(6)의 작동이 중지된다(S1107, S1108). 이후, 다시 동결감지가 해제되었는지 여부에 따라(S1105), 온도센서(18)에 의해 온도를 감지하여(S1106), 감지된 온도가 상기 설정온도보다 낮을시 다시 급수밸브(6)가 작동된다(S1103, S1104).When freezing prevention is started (S1101), the temperature is sensed by the temperature sensor 18 (S1102), when the temperature detected by the temperature sensor 18 is lower than the set temperature (S1103) is activated (S1103) , S1104). When the freezing prevention is not released even after the water supply valve 6 is operated, the temperature sensor 18 repeatedly detects the temperature (S1106), and when the temperature detected by the temperature sensor 18 again exceeds the set temperature. The operation of the water supply valve 6 is stopped (S1107, S1108). Thereafter, depending on whether the freeze detection is released again (S1105), the temperature is sensed by the temperature sensor 18 (S1106), and when the detected temperature is lower than the set temperature, the water supply valve 6 is operated again ( S1103, S1104).
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 급수밸브(6)의 작동(S1104)과 중지(S1108)가 반복되는 것은, 동결방지가 해제되기 전까지 계속된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeated operation (S1104) and stop (S1108) of the water supply valve 6 in accordance with the temperature sensed by the temperature sensor 18 as described above, until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 12는 본 발명의 제 7 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
본 실시예에서 온도센서(18)는 급수밸브(6)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the water supply valve (6).
동결방지가 개시되면(S1201), 온도센서(18)에 의해 온도가 감지되고(S1202), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 급수밸브(6)가 작동된다(S1203, S1204). 급수밸브(6)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 반복적으로 온도를 감지하고(S1205), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 급수밸브(6)의 작동이 중지된다(S1206, S1208). When freezing prevention is started (S1201), the temperature is sensed by the temperature sensor 18 (S1202), the water supply valve 6 is activated when the temperature sensed by the temperature sensor 18 is lower than the set temperature (S1203). , S1204). The temperature sensor 18 repeatedly detects the temperature unless the freezing prevention is released even after the water supply valve 6 is operated (S1205), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature. The operation of the valve 6 is stopped (S1206, S1208).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 급수밸브(6)의 작동이 중지된다.(S1206, S1207, S1208) 상기 설정시간은 급수밸브(6)의 발열 정도를 고려하여, 급수밸브(6)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in this embodiment, even if the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the water supply valve 6 is stopped when the set time has elapsed. (S1206, S1207, S1208) The set time May be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S1209), 온도센서(18)가 주기적으로 온도를 감지하고, 감지된 온도가 상기 설정온도보다 낮을 시(S1203) 다시 급수밸브(6)가 작동된다(S1204).Thereafter, depending on whether the freeze detection is released again (S1209), the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature (S1203), the water supply valve 6 is operated again. (S1204).
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 급수밸브(6)의 작동과 중지가 반복되는 것은, 동결방지가 해제되기 전까지 계속된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeated operation and stop of the water supply valve 6 according to the temperature sensed by the temperature sensor 18 as described above is continued until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 13은 본 발명의 제 8 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
본 실시예에서 온도센서(18)는 급수밸브(6)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the water supply valve (6).
동결방지가 개시되면(S1301), 온도센서(18)에 의해 온도가 감지되고(S1302), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시(S1303), 급수밸브(6)의 작동과 중지가 반복된다(S1304). 급수밸브(6)가 작동된 후에도 동결방지가 해제되지 않는 이상(S1305), 온도센서(18)가 주기적으로 온도를 감지하고(S1306), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시(S1307), 급수밸브(6)의 작동이 정지된다(S1308).When freezing prevention is started (S1301), the temperature is sensed by the temperature sensor 18 (S1302), when the temperature detected by the temperature sensor 18 is lower than the set temperature (S1303), the water supply valve 6 Operation and stop are repeated (S1304). As long as the freezing prevention is not released even after the water supply valve 6 is operated (S1305), the temperature sensor 18 periodically detects the temperature (S1306), and the temperature detected by the temperature sensor 18 is set again. When the temperature is higher than S1307, the operation of the water supply valve 6 is stopped (S1308).
여기서, S1304단계에서는 급수밸브(6)가 작동되지 않는 구간을 '중지'라고 하고, S1308단계에서는 '정지'라고 한 것은, S1304단계와, S1308단계는 급수밸브(6)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S1304단계는 소정 시간 동안 급수밸브(6)가 작동 및 중지를 반복하는 반면, S1308단계에서 S1305단계로 다시 리턴하여 S1306단계와 S1307단계를 수행하여 다시 작동되기 전까지 작동하지 않고 대기한다.Here, in step S1304, the section in which the water supply valve 6 is not operated is referred to as 'stop', and in step S1308, the term 'stop' is different from the operation method of the water supply valve 6 between steps S1304 and S1308. Because there is. That is, in step S1304, while the water supply valve 6 repeats operation and stops for a predetermined time, the flow returns to step S1305 from step S1308 and performs steps S1306 and S1307 to wait without operation until it is operated again.
한편, S1307단계에서, 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮은 경우에는 다시 S1304단계로 리턴하여 급수밸브(6)의 작동과 중지가 반복된다.On the other hand, in step S1307, if the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1304 again to repeat the operation and stop of the water supply valve (6).
본 실시예에서는 온도센서(18)에 의해 감지된 온도(S1302)가 설정온도보다 낮은 경우, 급수밸브(6)를 연속하여 작동시키는 것이 아니라 작동 및 중지가 반복되도록 한다.In the present embodiment, when the temperature S1302 detected by the temperature sensor 18 is lower than the set temperature, the water supply valve 6 is not continuously operated, but the operation and stop are repeated.
한편, S1305단계에서의 동결방지 해제는, 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the freeze protection release in step S1305 is conditional on the user inputting the release command through the freeze protection selection unit 16, or condition that the user inputs a control command for washing, rinsing or dehydration. Can be.
도 14는 본 발명의 제 9 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
본 실시예에서 온도센서(18)는 급수밸브(6)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the water supply valve (6).
동결방지가 개시되면(S1401), 온도센서(18)에 의해 온도가 감지되고(S1402), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시(S1403), 급수밸브(6)의 작동과 중지가 반복된다(S1404). 급수밸브(6)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 주기적으로 온도를 감지하고(S1405), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 급수밸브(6)의 작동이 정지된다(S1406, S1408).When freezing prevention is started (S1401), the temperature is sensed by the temperature sensor 18 (S1402), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (S1403), the water supply valve 6 Operation and stop are repeated (S1404). The temperature sensor 18 periodically detects the temperature unless the freezing prevention is released even after the water supply valve 6 is operated (S1405), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature. The operation of the valve 6 is stopped (S1406, S1408).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 급수밸브(6)의 작동이 정지된다.(S1406, S1407, S1406, S1407, S1408) 상기 설정시간은 급수밸브(6)의 발열 정도를 고려하여, 급수밸브(6)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in this embodiment, even when the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the water supply valve 6 is stopped when the set time has elapsed. (S1406, S1407, S1406, S1407, S1408) The set time may be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S1409), 온도센서(18)가 주기적으로 온도를 감지하고, 감지된 온도가 상기 설정온도보다 낮을 시 다시 급수밸브(6)가 작동된다(S1403, S1404).Thereafter, depending on whether the freeze detection is released again (S1409), the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the water supply valve 6 is operated again (S1403, S1404).
여기서, S1404단계에서는 급수밸브(6)가 작동되지 않는 구간을 '중지'라고 하고, S1408단계에서는 '정지'라고 한 것은, S1404단계와 S1408단계는 급수밸브(6)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S1404단계는 소정 시간 동안 급수밸브(6)가 작동 및 중지를 반복하는 반면, S1408단계에서 작동이 정지된 급수밸브(6)는, S1409단계에서 S1402단계로 리턴하여 S1403단계에서 다시 작동되기 전까지 작동하지 않고 대기한다.Here, in step S1404, the section in which the water supply valve 6 is not operated is called 'stop', and in step S1408, 'stop' is that, in steps S1404 and S1408, there is a difference in the operation method of the water supply valve 6. Because there is. That is, in step S1404, the water supply valve 6 is repeatedly operated and stopped for a predetermined time, while the water supply valve 6 in which the operation is stopped in step S1408 is returned to step S1402 in step S1409 to be operated again in step S1403. Wait until it doesn't work.
한편, S1409단계의 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the release of the freeze protection in step S1409 may be conditional on the user inputting the release command through the freeze protection selection unit 16, or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
도 15는 본 발명의 제 10 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
본 실시예에서 온도센서(18)는 배수펌프(10)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the drain pump 10.
동결방지가 개시되면(S1501), 온도센서(18)에 의해 온도가 감지되고(S1502), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 배수펌프(10)가 작동된다(S1503, S1504). 배수펌프(10)가 작동된 후에도 동결방지가 해제되지 않는 이상, 온도센서(18)가 반복적으로 온도를 감지하고(S1506), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 배수펌프(10)의 작동이 중지된다(S1508, S1508). 이후, 다시 동결감지가 해제되었는지 여부에 따라(S1505), 온도센서(18)에 의해 온도를 감지하여(S1506), 감지된 온도가 상기 설정온도보다 낮을 시 다시 배수펌프(10)가 작동된다(S1507, S1504).When freezing prevention is started (S1501), the temperature is sensed by the temperature sensor 18 (S1502), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (10) (S1503) , S1504). When the freezing protection is not released even after the drain pump 10 is operated, the temperature sensor 18 repeatedly detects the temperature (S1506), and when the temperature detected by the temperature sensor 18 again exceeds the set temperature. Operation of the drain pump 10 is stopped (S1508, S1508). Then, depending on whether the freeze detection is released again (S1505), by detecting the temperature by the temperature sensor 18 (S1506), when the detected temperature is lower than the set temperature, the drain pump 10 is operated again ( S1507, S1504).
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 배수펌프(10)의 작동(S1504)과 중지(S1508)가 반복되는 것은, 동결방지가 해제되기 전까지 반복된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeated operation (S1504) and stop (S1508) of the drain pump 10 in accordance with the temperature sensed by the temperature sensor 18 as described above, is repeated until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 16은 본 발명의 제 11 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
본 실시예에서 온도센서(18)는 배수펌프(10)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the drain pump 10.
동결방지가 개시되면(S1601), 온도센서(18)에 의해 온도가 감지되고(S1602), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 배수펌프(10) 가 작동된다(S1603, S1604). 배수펌프(10)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 반복적으로 온도를 감지하고(S1605), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 배수펌프(10)의 작동이 중지된다(S1606, S1608). When freezing prevention is started (S1601), the temperature is sensed by the temperature sensor 18 (S1602), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (10) (S1603) , S1604). The temperature sensor 18 repeatedly detects the temperature unless the freezing prevention is released even after the drain pump 10 is operated (S1605), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature. The operation of the pump 10 is stopped (S1606, S1608).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 배수펌프(10)의 작동이 중지된다.(S1606, S1607, S1608) 상기 설정시간은 배수펌프(10)의 발열 정도를 고려하여, 배수펌프(10)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in this embodiment, even if the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the drainage pump 10 is stopped when the set time has elapsed. (S1606, S1607, S1608) The set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S1609), 온도센서(18)가 주기적으로 온도를 감지하고, 감지된 온도가 상기 설정온도보다 낮을시 다시 배수펌프(10)가 작동된다(S1603, S1604).Thereafter, depending on whether the freezing detection is released again (S1609), the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1603, S1604).
상기와 같이 온도센서(18)에 의해 감지된 온도에 따라 배수펌프(10)의 작동과 중지가 반복되는 것은, 동결방지가 해제되기 전까지 반복된다. 여기서, 상기 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.Repeating operation and stop of the drain pump 10 according to the temperature sensed by the temperature sensor 18 as described above is repeated until the freeze protection is released. Here, the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
도 17은 본 발명의 제 12 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
본 실시예에서 온도센서(18)는 배수펌프(10)에 구비된다.In this embodiment, the temperature sensor 18 is provided in the drain pump 10.
동결방지가 개시되면(S1701), 온도센서(18)에 의해 온도가 감지되고(S1702), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 배수펌프(10)의 작동과 중지가 반복된다(S1703, S1704). 배수펌프(10)가 작동된 후에도 동결방지가 해제되지 않는 이상, 온도센서(18)가 주기적으로 온도를 감지하고(S1706), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 배수펌프(10)의 작동이 정지된다(S1707, S1708). 여기서, S1704단계에서는 배수펌프(10)가 작동되지 않는 구간을 '중단'이라고 하고, S1708단계에서는 '정지'라고 한 것은, S1704단계와 S1708단계는 배수펌프(10)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S1704단계는 소정시간동안 배수펌프(10)가 작동 및 중지를 반복하는 반면, B28단계에서 자동이 정지된 배수펌프(10)는, S1709단계에서 S1705단계로 다시 리턴하여 S1706단계와 S1707단계를 수행하여 다시 작동되기 전까지 작동하지 않고 대기한다.When freezing prevention is started (S1701), the temperature is sensed by the temperature sensor 18 (S1702), when the temperature sensed by the temperature sensor 18 is lower than the set temperature operation and stop of the drain pump 10 It is repeated (S1703, S1704). If the freezing protection is not released even after the drain pump 10 is operated, the temperature sensor 18 periodically detects the temperature (S1706), and again when the temperature detected by the temperature sensor 18 is greater than or equal to the set temperature. Operation of the drain pump 10 is stopped (S1707, S1708). Here, in step S1704, the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1708, the term 'stop' is different from the method of operation of the drain pump 10 in steps S1704 and S1708. Because there is. That is, in step S1704, while the drain pump 10 is repeatedly operated and stopped for a predetermined time, the drain pump 10 automatically stopped in step B28 returns to step S1705 from step S1709 to step S1706 and step S1707. Wait for it not to work until it is up again.
한편, S1707단계에서, 온도센서(18)에 의해 감지된 온도가 설정온도 보다 낮은 경우에는 다시 S1704단계로 리턴하여 배수펌프(10)의 작동과 중지가 반복된다.On the other hand, in step S1707, when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1704 again to repeat the operation and stop of the drain pump 10.
본 실시예에서는 온도센서(18)에 의해 감지된 온도(S1702)가 설정온도보다 낮은 경우, 배수펌프(10)를 연속하여 작동시키는 것이 아니라 작동 및 중지가 반복한다.In the present embodiment, when the temperature S1702 detected by the temperature sensor 18 is lower than the set temperature, the drain pump 10 is not operated continuously, but the operation and stop are repeated.
한편, S1705단계에서의 동결방지 해제는, 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the freeze protection release in step S1705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
도 18은 본 발명의 제 13 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
동결방지가 개시되면(S1801), 온도센서(18)에 의해 온도가 감지되고(S1802), 온도센서(18)에 의해 감지된 온도가 설정온도보다 낮을 시 배수펌프(10)의 작동과 중지가 반복된다(S1803, S1804). 배수펌프(10)가 작동된 후에도 동결방지가 해제되지 않는 이상 온도센서(18)가 주기적으로 온도를 감지하고(S1805), 다시 온도센서(18)에 의해 감지된 온도가 상기 설정온도 이상일 시 배수펌프(10)의 작동이 정지된다(S1806, S1808).When freezing prevention is started (S1801), the temperature is sensed by the temperature sensor 18 (S1802), when the temperature sensed by the temperature sensor 18 is lower than the set temperature operation and stop of the drain pump 10 It is repeated (S1803, S1804). The temperature sensor 18 periodically detects the temperature unless the freezing prevention is released even after the drain pump 10 is operated (S1805), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature. The operation of the pump 10 is stopped (S1806, S1808).
한편, 본 실시예에서는 온도센서(18)에 의해 감지된 온도가 설정온도보다 크지 않는 경우에도, 설정시간 경과시 배수펌프(10)의 작동이 정지된다.(S1806, S1807, S1808) 상기 설정시간은 배수펌프(10)의 발열 정도를 고려하여, 배수펌프(10)가 과열되지 않도록 하는 범위 내에서 설정될 수 있다.On the other hand, in this embodiment, even if the temperature sensed by the temperature sensor 18 is not greater than the set temperature, the operation of the drain pump 10 is stopped when the set time has elapsed. (S1806, S1807, S1808) The set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
이후, 다시 동결감지가 해제되었는지 여부에 따라(S1809), 온도센서(18)가 주기적으로 온도를 감지하고, 감지된 온도가 상기 설정온도보다 낮을 시 다시 배수펌프(10)가 작동된다(S1803, S1804).Thereafter, depending on whether the freeze detection is released again (S1809), the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1803, S1804).
여기서, S1804단계에서는 배수펌프(10)가 작동되지 않는 구간을 '중지'라고 하고, S1808단계에서는 '정지'라고 한 것은, S1804단계와 S1808단계는 배수펌프(10)의 작동방식에 있어서 차이가 있기 때문이다. 즉, S1804단계는 소정 시간 동안 배수펌프(10)가 작동 및 중지를 반복하는 반면, S1808단계에서 작동이 정지된 배수펌프(10)는, S1809단계에서 S1802단계로 리턴하여 S1804단계에서 다시 작동되기 전까지 작동하지 않고 대기한다.Here, in step S1804, the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1808, 'stop' is that, in steps S1804 and S1808, there is a difference in the operation method of the drain pump 10. Because there is. That is, in step S1804, the drain pump 10 repeatedly operates and stops for a predetermined time, while the drain pump 10 in which the operation is stopped in step S1808 is returned to step S1802 in step S1809 to be operated again in step S1804. Wait until it doesn't work.
한편, S1809단계의 동결방지의 해제는 사용자가 동결방지 선택부(16)를 통해 해제명령을 입력하는 것을 조건으로 하거나, 사용자가 세탁, 헹굼 또는 탈수를 위한 제어명령을 입력하는 것을 조건으로 할 수 있다.On the other hand, the release of the freeze protection of step S1809 may be conditional on the user inputting a release command through the freeze protection selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
이상에서 살펴본 실시예들은, 세탁기를 구성하는 전장품이 작동할 시 발생하는 열을 이용하여 세탁기가 동결되는 것을 방지하는 것으로, 특히, 잔수에 의한 동결이 빈번하게 발생할 수 있는 급수밸브(6), 배수밸브(8) 또는 배수펌프(10)의 작동시켜 동결을 방지할 수 있음을 보여주는 것들이다.Embodiments described above are to prevent the washing machine from freezing by using heat generated when the electrical equipment constituting the washing machine is operated. In particular, the water supply valve 6, drainage, in which freezing by residual water may occur frequently, These show that freezing can be prevented by operating the valve 8 or the drain pump 10.
도 19는 본 발명의 제 14 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
도 19를 참조하면, 본 발명의 제 14 실시예에 따른 세탁기의 제어방법은 세탁수를 급수하기 전에 외조(2) 내의 수위를 감지한다(S1901). S1901단계에서는 수위센서(20)를 통해 수위를 감지할 수 있다.Referring to FIG. 19, the control method of the washing machine according to the fourteenth embodiment of the present invention senses the water level in the outer tub 2 before supplying the washing water (S1901). In operation S1901, the water level may be detected through the water level sensor 20.
제어부(14)는 S1901단계에서 감지된 수위를 설정수위와 비교하고(S1902), 상기 감지된 수위가 설정수위 보다 낮은 경우 급수가 이루어지도록 하고, 이후 세탁, 헹굼, 탈수 등의 행정이 수행되도록 한다(S1903). S1903단계에서 제어부(14)는 급수밸브(6)를 제어하여 급수가 이루어지도록 할 수 있다.The controller 14 compares the water level detected in step S1901 with the set water level (S1902), and if the detected water level is lower than the set water level, water is supplied, and then the washing, rinsing, and dehydration are performed. (S1903). In operation S1903, the controller 14 may control the water supply valve 6 to supply water.
한편, S1902단계에서 감지된 수위가 설정수위보다 높은 경우, 제어부(14)는 배수펌프(10)를 작동시켜 세탁수를 배수시킨다(S1904), 이후, 수위센서(20)에 의해 외조(2) 내의 수위가 계속적으로 감지되고, 배수설정시간이 경과하기 전에 외조(2) 내의 수위가 충분히 감소된 경우(S1905), 제어부(14)는 급수밸브(6)를 개방시켜 외조(2) 내로 세탁수가 급수되도록 하고 세탁, 헹굼, 탈수 등의 행정이 수행되도록 한다(S1903).On the other hand, if the water level detected in step S1902 is higher than the set water level, the control unit 14 operates the drainage pump 10 to drain the wash water (S1904), after that, the outer tank (2) by the water level sensor 20 When the water level in the tank is continuously detected, and the water level in the outer tank 2 is sufficiently reduced before the drainage set time elapses (S1905), the controller 14 opens the water supply valve 6 to wash the water into the outer tank 2. The water is supplied and the washing, rinsing, and dehydration strokes are performed (S1903).
반대로, S1905단계에서 외조(2) 내의 수위가 충분히 감소되지 않고 배수설정시간이 경과한 경우, 제어부(14)는 온도센서(18)를 통해 온도를 감지하고(S6), 감지된 온도를 기준온도와 비교하여(S1907), 상기 감지된 온도가 기준온도보다 낮은 경우에는 표시부(22)를 통해 제 1 에러 메세지를 출력하고(S1908), 상기 감지된 온도가 기준온도보다 높은 경우에는 표시부(22)를 통해 제 2 에러 메세지를 출력한다(S1909).On the contrary, when the water level in the outer tank 2 is not sufficiently reduced in step S1905 and the drainage setting time has elapsed, the controller 14 detects the temperature through the temperature sensor 18 (S6), and uses the detected temperature as a reference temperature. In comparison with (S1907), if the detected temperature is lower than the reference temperature, the first error message is output through the display unit 22 (S1908), and if the detected temperature is higher than the reference temperature, the display unit 22 The second error message is output through S1909.
한편, S1904단계에서 배수설정시간이 경과한 후에도 충분한 배수가 이루어지지 않은 경우(S1905)는 배수유로(9), 배수펌프(10) 및/또는 배수밸브(8)를 포함하는 배수부에 동결이 발생하여 배수가 정상적으로 이루어지지 않은 경우(제 1 에러 메세지 출력)이거나 배수펌프(10)에 고장이 발생한 경우(제 2 에러 메세지 출력) 중에 한 경우로 가정할 수 있다.On the other hand, if sufficient drainage is not made even after the drainage setting time has elapsed in step S1904 (S1905), freezing may occur in the drain including the drain passage 9, the drain pump 10, and / or the drain valve 8. It may be assumed that one of the cases occurs when the drainage is not performed normally (output of the first error message) or when a failure occurs in the drain pump 10 (output of the second error message).
S1906 내지 S1907단계는 상기 두 가지 경우 중에 어느 경우인지를 가리기 위한 것으로, S1906단계에서 감지된 온도가 기준온도 보다 낮은 것으로 S1907단계에서 판단되면 세탁기가 동절기와 같은 온도가 낮은 환경조건에서 작동하는 경우로 볼 수 있고, 제어부(14)는 상기 배수부에 동결이 발생한 것을 사용자가 인식할 수 있도록 표시부(22)를 통해 제 1 에러 메세지가 출력되도록 한다. 상기 기준온도는 실험에 의해 설정되는 값으로 세탁기 내에 잔수가 존재하는 경우 동결이 발생되었음을 상당한 정확도로 예측할 수 있는 정도의 값이라 할 것이다. 상기 기준온도는 영하의 값으로 설정되는 것이 바람직하다.Steps S1906 to S1907 are to cover which of the two cases, and when it is determined in step S1907 that the temperature detected in step S1906 is lower than the reference temperature, the washing machine operates in a low temperature environment such as winter. As can be seen, the controller 14 allows the first error message to be output through the display unit 22 so that the user can recognize that the freezing has occurred in the drain. The reference temperature is a value set by an experiment and will be referred to as a value that can be predicted with considerable accuracy that freezing has occurred when residual water is present in the washing machine. Preferably, the reference temperature is set to a subzero value.
반대로, S1906단계에서 감지된 온도가 기준온도 보다 높은 것으로 S1907단계에서 판단되면 세탁기 내의 잔수가 동결될 가능성이 아주 낮은 경우라 할 것이며, 따라서 제어부(14)는 배수가 충분히 이루어지지 않는 이유로 배수펌프(10) 의 고장, 배수유로(9) 또는 배수밸브(8)의 막힘 등을 원인으로 상정하고 사용자가 이를 인지할 수 있도록 표시부(22)를 통해 제 2 에러 메세지가 출력되도록 제어한다.On the contrary, if it is determined in step S1907 that the temperature sensed in step S1906 is higher than the reference temperature, the residual water in the washing machine is very unlikely to freeze. Therefore, the control unit 14 determines that the drainage pump ( It is assumed that the failure of 10), the clogging of the drain passage 9 or the drain valve 8, and the like is caused, and the second error message is output through the display unit 22 so that the user can recognize it.
한편, 본 실시예에서 세탁기의 작동 중 급수가 이루어지기 전에 S1902단계를 수행하는 이유는, 세탁 또는 헹굼을 위한 급수가 이루어지기 전에 외조(2) 내에 세탁수가 존재하는 경우, 이를 이용하여 동결여부를 판단하기 위한 것으로, 동결이 발생한 것으로 감지될 시 이후 세탁수의 급수가 이루어지지 않도록 함으로써, 불필요한 급수를 미연에 방지할 수 있는 효과가 있다. On the other hand, the reason for performing the step S1902 before the water supply is made during the operation of the washing machine in the present embodiment, if the washing water is present in the outer tank (2) before the water supply for washing or rinsing, whether to freeze using this In order to determine, it is possible to prevent unnecessary water supply by preventing the water supply of the washing water after the freezing is detected.
제어부(14)는 S1908 또는 S1909단계에서 해당 에러 메세지의 출력과 함께 세탁기의 작동이 중지되도록 제어하고, 사용자의 특정 조작에 의해서 또는 상기 에러 메세지의 출력을 해제조건으로 남은 과정이 수행되도록 하는 것이 바람직하다.The controller 14 may control to stop the operation of the washing machine together with the output of the corresponding error message in operation S1908 or S1909, and to perform the process remaining by the user's specific operation or by canceling the output of the error message. Do.
도 20은 본 발명의 제 15 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
도 20을 참조하면, 세탁기에 전원을 인가하고 작동이 시작되면, 외조(2) 내로 급수가 이루어지기 전에 온도센서(18)에 의해 온도가 감지된다(S2001).Referring to FIG. 20, when power is supplied to the washing machine and operation is started, the temperature is sensed by the temperature sensor 18 before water is supplied into the outer tub 2 (S2001).
제어부(14)는 S2001단계에서 감지된 온도(T)를 기준온도(T1)와 비교한다(S2002). 여기서, 기준온도(S2001)는 영하의 값으로 설정될 수 있다.The controller 14 compares the temperature T sensed in step S2001 with the reference temperature T1 (S2002). Here, the reference temperature S2001 may be set to a value of minus zero.
S2001단계에서 감지된 온도(T)가 기준온도(T1)보다 낮은 것으로 판단되면, 즉, 온도센서(18)에 의해 감지된 공기의 온도가 영하인 경우는 세탁기가 동결의 위험이 있는 조건하에서 작동되는 것으로 볼 수 있고, 따라서, 이후의 단계들(S2011 내지 S2018)에서는 세탁기의 동결여부를 판단한다.If it is determined in step S2001 that the detected temperature (T) is lower than the reference temperature (T1), that is, the temperature of the air detected by the temperature sensor 18 is below zero, the washing machine operates under the condition that there is a risk of freezing. Therefore, in the subsequent steps (S2011 to S2018), it is determined whether the washing machine is frozen.
반대로, S2001단계에서 감지된 온도(T)가 기준온도(T1)보다 높은 것으로 판단되면, 이하의 단계(S2021 내지 S2030)들에서는 급수밸브(12) 또는 배수펌프(10)의 정상작동 여부를 판단하게 되며, 이러한 과정은 동결여부를 판단하는 S2011 내지 S2018단계와는 구별되는 것이다.On the contrary, if it is determined that the temperature T detected in step S2001 is higher than the reference temperature T1, it is determined whether the water supply valve 12 or the drain pump 10 operates normally in the following steps S2021 to S2030. This process is to be distinguished from the step S2011 to S2018 to determine whether or not to freeze.
먼저, S2002단계에서 온도센서(18)의 감지값(T)이 기준온도(T1)보다 낮은 것으로 판단된 경우, 내조(3) 내에 투입된 포의 양을 감지하기 위한 포량감지(S2011)가 수행되고, 감지된 포량에 따라 목표수위를 설정하고 외조(2) 내로 급수(S2012)가 수행된다.First, when it is determined in step S2002 that the detected value T of the temperature sensor 18 is lower than the reference temperature T1, a quantity detection S2011 is performed to detect the amount of the cloth injected into the inner tank 3. , The target water level is set according to the detected quantity of water and the water supply (S2012) is performed into the outer tank (2).
이후, 수위센서(20)에 의해 외조(2) 내의 수위가 감지되고, 제어부(14)는 기 설정된 제 1 설정시간 내에 수위센서(20)의 감지값(W)이 제 1 설정수위(W1)에 도달하였는지 여부를 판단한다(S2013). 여기서, 제 1 설정수위(W1)는 S2011단계에서 포량에 따라 설정된 목표수위보다 낮은 값인 것으로 설정될 수 있다.Thereafter, the water level in the outer tub 2 is detected by the water level sensor 20, and the controller 14 detects that the detected value W of the water level sensor 20 is within the first set time period. It is determined whether or not reached (S2013). Here, the first set water level W1 may be set to a value lower than the target water level set according to the amount of dose in step S2011.
여기서, 상기 제 1 설정시간은, 급수밸브(12)가 정상적으로 작동하는 조건하에서, 외조(2) 내의 수위가 S2011단계에서 설정된 목표수위에 도달하는데 걸리는 시간보다 짧은 값으로 설정될 수 있다.Here, the first set time may be set to a value shorter than the time required for the water level in the outer tank 2 to reach the target water level set in step S2011 under the condition that the water supply valve 12 operates normally.
수위 감지값(W)이 제 1 설정수위(W1)에 도달하지 못한 경우, 제어부(14)는 급수가 정상적으로 이루어지지 않은 것으로 판단하고, 급수중단을 포함하여 세탁기의 작동을 정지시키고(S2017), 표시부(22)를 통해 제 5 에러 메세지가 표시되도록 한다(S2018). 상기 제 5 에러 메세지는 동결에 의해 세탁기가 정상적으로 작동하지 못하고 있음을 알리기 위한 것이다.When the water level detection value W does not reach the first set water level W1, the controller 14 determines that the water supply is not normally performed, and stops the operation of the washing machine including the water supply stop (S2017). The fifth error message is displayed through the display unit 22 (S2018). The fifth error message is for notifying that the washing machine does not operate normally due to freezing.
한편, S2013단계에서 상기 제 1 설정시간 내에 수위 감지값(W)이 제 1 설정수위(W1)에 도달한 것으로 판단된 경우에는 세탁(S2014)을 수행한다. 세탁(S2014)은 펄세이터(4) 또는 내조(3)를 회전시켜 포에 뭍은 오염을 제거하는 과정으로써, 펄세이터(4) 또는 내조(3)의 회전 패턴은 다양하게 설정될 수 있다.On the other hand, if it is determined in step S2013 that the water level detection value W reaches the first set water level W1 within the first set time, washing is performed (S2014). Washing (S2014) is a process of removing the contamination on the cloth by rotating the pulsator (4) or the inner tank 3, the rotation pattern of the pulsator (4) or inner tank (3) can be set in various ways.
배수(S2015)는 세탁(S2014) 완료 후 외조(2) 내의 세탁수를 외부로 배출시키는 과정으로 배수펌프(10)에 의해 이루어진다. 배수(S2015)시 제어부(14)는 배수펌프(10)를 작동시킨다.Drainage (S2015) is a process for discharging the wash water in the outer tank (2) after the completion of the washing (S2014) to the outside is made by the drainage pump (10). The control unit 14 operates the drain pump 10 at the time of drainage S2015.
배수(S2015)가 이루어지는 중에 수위센서(20)에 의해 외조(2) 내의 수위가 감지되고, 제어부(14)는 배수(S2015) 실시 후 제 2 설정시간 내에 외조(2) 내의 수위가 제 2 설정수위(W2) 이하로 낮아졌는지 여부를 판단한다(S2016).The water level in the outer tub 2 is detected by the water level sensor 20 while the drainage S2015 is performed, and the controller 14 sets the water level in the outer tub 2 within the second set time after the drainage S2015 is set to the second. It is determined whether the water level is lowered below W2 (S2016).
S2016단계에서 수위센서(20)의 감지값(W)이 제 2 설정수위(W2)보다 높은 것으로 판단된 경우는, 배수펌프(10)에 의한 배수가 정상적으로 이루어지지 못한 경우로, 그 원인이 배수펌프(10)의 동결로 인한 것일 가능성이 높다고 볼 수 있는 바, 제어부(14)는 배수중단을 포함하여 세탁기의 작동을 정지시키고(S2017), 표시부(22)를 통해 상기 제 5 에러 메세지가 표시되도록 한다(S2018).If it is determined in step S2016 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage by the drain pump 10 is not normally performed, and the cause thereof is drainage. It can be seen that the most likely due to the freezing of the pump 10, the control unit 14 stops the operation of the washing machine, including the drainage stop (S2017), and the fifth error message is displayed through the display unit 22 (S2018).
S2016단계에서 수위센서(20)의 감지값(W)이 제 2 설정수위(W2)보다 낮은 것으로 판단된 경우에는 외조(2)내로 다시 급수를 하여 포를 헹구는 헹굼(S2003), 내조(3)를 고속으로 회전시켜 포를 탈수시키는 탈수(S2004)가 차례로 수행될 수 있다.If it is determined in step S2016 that the detected value W of the water level sensor 20 is lower than the second set water level W2, rinsing (S2003) and internal tank (3) to rinse the cloth by supplying water again into the outer tank (2). Spinning at a high speed to spin the dehydration (S2004) may be performed in sequence.
한편, S2102단계에서 온도센서(18)의 감지값(T)이 기준온도(T1)보다 높은 것으로 판단된 경우, S2021 내지 S2030단계가 수행될 수 있다. S2021 내지 S2026단계는 실질적으로 S2011 내지 S2016단계와 동일한 과정으로 볼 수 있고, 다만, S2023단계에서 수위센서(20)의 감지값(W)이 제 1 설정수위(W1) 보다 낮은 경우, 제어부(14)는 급수가 정상적으로 이루어지지 않은 것으로 판단하고, 급수중단을 포함하여 세탁기의 작동을 정지시키고(S2027), 표시부(22)를 통해 제 6 에러 메세지가 표시되도록 한다(S2028). 상기 제 6 에러 메세지는 급수밸브(12)가 정상적으로 작동하지 못하고 있음을 알리는 것이다.Meanwhile, when it is determined in step S2102 that the detected value T of the temperature sensor 18 is higher than the reference temperature T1, steps S2021 to S2030 may be performed. Steps S2021 to S2026 may be substantially the same as those of steps S2011 to S2016, except that the detected value W of the water level sensor 20 is lower than the first set water level W1 in step S2023, and the controller 14 may be used. ) Determines that the water supply is not normal, stops the operation of the washing machine including the water supply stop (S2027), and the sixth error message is displayed through the display unit 22 (S2028). The sixth error message indicates that the water supply valve 12 is not operating normally.
또한, S2026단계에서 수위센서(20)의 감지값(W)이 제 2 설정수위(W2) 보다 높은 것으로 판단된 경우는 배수가 정상적으로 이루어지지 않은 경우로써, 제어부(14)는 배수중단을 포함하여 세탁기의 작동을 정지시키고(S2029), 표시부(22)를 통해 제 7 에러 메세지가 표시되도록 한다(S2030). 상기 제 7 에러 메세지는 배수펌프(10)가 정상적으로 작동하지 못하고 있음을 알리는 것이다.In addition, when it is determined in step S2026 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage is not normally performed, and the controller 14 includes the drainage stop. The operation of the washing machine is stopped (S2029), and the seventh error message is displayed through the display unit 22 (S2030). The seventh error message indicates that the drain pump 10 is not operating normally.
이상에서, 제 5 에러 메세지, 제 6 에러 메세지 또는 제 7 에러 메세지 출력을 위한 방법으로, S2018, S2028, S2030의 각단계에서는 각각의 에러 메세지들이 표시부(22)를 통해 표시되는 것으로 설명하였으며, 이는 통상 시각적인 표시가 될 것이나, 이와는 다르게 부져(buzzer), 스피커(speaker) 등의 음향 출력수단에 의한 출력도 가능할 것이다.In the above, as a method for outputting the fifth error message, the sixth error message or the seventh error message, it has been described that the respective error messages are displayed on the display unit 22 in each step of S2018, S2028, and S2030. It will usually be a visual indication, but alternatively, output by a sound output means such as a buzzer, a speaker, or the like will be possible.
도 21는 본 발명의 제 16 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
이하에서 설명하는 전원공급장치(19)는 세탁기(100)로 공급되는 전원을 인가 또는 차단하는 장치이다(도 2 참조).The power supply device 19 described below is a device for applying or cutting off the power supplied to the washing machine 100 (see FIG. 2).
도 21을 참조하면, 사용자가 포를 투입하고, 세탁기(100)의 전원을 온시키면, 전원공급장치(19)로부터 세탁기(100)로 전력이 인가된다.Referring to FIG. 21, when a user inserts a cloth and turns on the washing machine 100, power is applied from the power supply device 19 to the washing machine 100.
사용자는 원하는 세탁코스, 세탁시간, 헹굼 횟수, 탈수 강도, 예약 설정 등의 제어명령을 입력부(15)를 통해 입력할 수 있다. 또는 사용자는 세탁기(100)가 포량을 감지하여, 적절한 세탁 방법을 결정하도록 할 수 있다.The user may input a control command such as a desired washing course, washing time, rinsing frequency, dehydration intensity, reservation setting, and the like through the input unit 15. Alternatively, the user may allow the washing machine 100 to detect the quantity of water and determine an appropriate washing method.
상기와 같이 세탁방법이 결정되면, 세탁기(100)는 포의 때를 제거하는 세탁 행정, 포를 헹구는 헹굼 행정, 포를 탈수하는 탈수 행정을 차례로 수행한다.(S2101, S2102, S2103)When the washing method is determined as described above, the washing machine 100 performs a washing stroke for removing the time of the cloth, a rinsing stroke for rinsing the cloth, and a dehydration stroke for dewatering the cloth. (S2101, S2102, S2103)
상기 탈수 행정이 완료되면, 상기 외조(2)나 내조(3)의 벽면 등에 남아있는 물이 흘러내리는 시간을 기다리기 위하여, 세탁기(100)는 모든 작동을 정지하고 대기할 수 있다.When the dehydration stroke is completed, in order to wait for a time for the water remaining in the outer surface of the outer tank 2 or the inner tank 3 to flow down, the washing machine 100 may stop all operations and wait.
상기와 같은 대기 과정은 사용자가 별도로 입력부(15)를 통해 대기 명령을 입력했을 경우에만 실시하는 것도 가능하고, 사용자의 입력 없이 항상 진행하도록 설정되는 것도 가능하다.The above standby process may be performed only when the user inputs a standby command through the input unit 15 separately, or may be set to always proceed without user input.
본 실시예에서는, 입력부(15)에는 대기 명령을 입력하기 위한 별도의 버튼이 구비되고, 상기 버튼이 눌러진 상태이면 세탁기(100)는 항상 상기 대기 과정을 수행하는 것으로 설명한다. 예를 들어, 상기 버튼을 한번 누르면, 세탁기(100)의 동작 중에 제어부(14)는 대기명령이 입력된 것으로 판단하고, 상기 버튼의 누름이 해제되면 제어부(14)는 대기명령이 없는 것으로 판단할 수 있다. In this embodiment, the input unit 15 is provided with a separate button for inputting a standby command, and when the button is pressed, the washing machine 100 will be described as always performing the waiting process. For example, when the button is pressed once, the controller 14 determines that a standby command is input during the operation of the washing machine 100, and when the button is released, the controller 14 determines that there is no standby command. Can be.
따라서, 상기 탈수 행정이 종료되면, 제어부(14)는 입력부(15)를 통해 대기명령이 입력되었는지 여부를 판단한다. 이 때, 상기 탈수 행정은 간헐 탈수와 본 탈수를 포함하며, 본 탈수까지 종료되었을 때 제어부(14)는 상기 대기명령의 입력여부를 판단한다.(S2104)Therefore, when the dehydration stroke is completed, the controller 14 determines whether a standby command is input through the input unit 15. At this time, the dehydration step includes intermittent dehydration and main dehydration, and when the dehydration is completed, the controller 14 determines whether the waiting command is input (S2104).
대기 명령이 입력되었다고 판단되면, 제어부(14)는 급수밸브(6), 배수펌프(10), 구동부(13) 등의 모든 장치의 작동을 정지한다.(S2105)If it is determined that the standby command is input, the control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2105).
외조(2)나 내조(3)의 벽면 등에 잔수가 남을 경우, 잔수가 동결될 수 있다. 따라서, 외조(2)나 내조(3)의 벽면 등에 있는 물이 모두 흘러내릴 때까지 모든 작동을 멈추고 기다린다.When the residual water remains on the wall surface of the outer tank 2 or the inner tank 3, the residual water may be frozen. Therefore, all operation | movement is stopped and waits until all the water in the wall surface of the outer tank 2, the inner tank 3, etc. flows.
상기 대기는 미리 설정된 설정 시간동안 이루어질 수 있으며, 제어부(14)는 대기하는 동안, 설정 시간이 경과하는지 여부를 판단한다.(S2106) 상기 설정시간은 외조(2)나 내조(3)의 벽면 등에 남아있는 물이 모두 흘러내리는 데 필요한 시간으로, 실험 등에 의해 미리 설정되어 저장된다. The waiting may be performed during a preset set time, and the controller 14 determines whether the set time has elapsed while waiting (S2106). The set time may be a wall surface of the outer tub 2 or the inner tub 3, or the like. It is a time required for all remaining water to flow down, and is preset and stored by experiment or the like.
상기 설정시간동안 하측으로 흘러내린 물은 상기 배수유로(9)나 배수펌프(10) 내에 모이게 된다.Water flowing down during the set time is collected in the drain passage 9 or the drain pump 10.
상기 설정시간이 경과하면, 배수펌프(10)를 구동시켜, 남아있는 물을 모두 배수할 수 있다.(S2107)When the set time has elapsed, the drain pump 10 may be driven to drain all remaining water. (S2107)
배수가 진행되는 동안, 수위센서(20)는 외조(2) 내의 수위를 감지한다. 상기 수위센서(20)는 수위를 감지하여, 신호로서 제어부(14)로 전송한다.While the drainage is in progress, the water level sensor 20 detects the water level in the outer tub 2. The water level sensor 20 detects the water level and transmits the signal to the controller 14 as a signal.
제어부(14)는 수위센서(20)에서 감지된 수위가 미리 설정된 배수 완료 수위인지 비교한다.(S2108)The controller 14 compares whether the water level detected by the water level sensor 20 is a preset drainage completed water level (S2108).
수위센서(20)에서 감지된 수위가 상기 배수 완료 수위에 도달하면, 제어부(14)는 설정 시간 이후에 배수를 정지한다.(S2109) 여기서, 상기 설정 시간은 상기 감지된 수위가 상기 배수 완료 수위에 도달한 후에도 배수펌프(10)내에 소량의 물이 남아있을 수 있으므로, 소량의 물을 배수할 수 있는 시간으로 설정하는 것도 가능하고, 상기 설정 시간은 0을 포함할 수 있다. When the water level detected by the water level sensor 20 reaches the drainage completion level, the control unit 14 stops drainage after a set time (S2109), where the set level is the detected level of the drainage completion level. Since a small amount of water may remain in the drain pump 10 even after reaching a, it may be set to a time at which a small amount of water may be drained, and the set time may include zero.
상기와 같이, 배수가 정지되면, 세탁기(100) 내에 모든 잔수가 배수되었다고 판단하고, 상기 전원공급장치(19)를 제어하여, 전력을 차단하고 전원을 오프한다. As described above, when the drainage is stopped, it is determined that all the remaining water in the washing machine 100 is drained, and the power supply device 19 is controlled to cut off the power and turn off the power.
상기와 같이, 상기 세탁, 헹굼, 탈수 행정이 모두 끝난 후에, 전원을 오프하기 전에 내조(3) 및 외조(2)에 남아있는 잔수가 흘러내려갈 수 있는 대기시간을 확보함으로써, 세탁기(100)내의 잔수를 효과적으로 제거하여 잔수가 동결되는 현상을 방지할 수 있다.As described above, after the washing, rinsing, and dehydration strokes are completed, the waiting time for allowing the residual water remaining in the inner tank 3 and the outer tank 2 to flow down before the power is turned off, thereby ensuring that By removing the residue effectively, it is possible to prevent the residue from freezing.
도 22은 본 발명의 제 17 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다.22 is a flowchart illustrating a control method of the washing machine according to the seventeenth embodiment of the present invention.
도 22을 참조하면, 제어부(14)는 미리 설정된 세탁 코스 등에 따라 세탁, 헹굼, 탈수 행정을 진행한다.(S2201, S2202, S2203)Referring to FIG. 22, the controller 14 performs washing, rinsing, and dehydration strokes according to a preset washing course or the like. (S2201, S2202, S2203)
상기 탈수 행정이 종료되면, 세탁기는 엉키거나 뭉친 포를 고르게 펴기 위한 포 풀림 행정을 수행한다.(S2204)When the dehydration stroke is completed, the washing machine performs a foam release stroke to evenly spread the entangled or agglomerated cloth. (S2204)
상기 포 풀림 행정이 종료되면, 제어부(14)는 사용자로부터 잔수 제거를 위한 대기 명령이 입력되었는가 여부를 판단한다.(S2205)When the inflation stroke is completed, the controller 14 determines whether a waiting command for removing residual water is input from the user (S2205).
상기 대기 명령이 입력되었다고 판단되면, 제어부(14)는 급수밸브(6), 배수펌프(10), 구동부(13) 등의 모든 장치의 작동을 정지한다.(S2206)If it is determined that the standby command is input, the control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2206).
제어부(14)는 상기와 같이 모든 장치의 작동이 정지되는 동안, 상기 설정 시간이 경과하는지 여부를 판단한다.(S2207)The controller 14 determines whether the set time has elapsed while the operation of all the devices is stopped as described above (S2207).
상기 설정시간이 경과되었다고 판단하면, 제어부(14)는 배수펌프(10)를 작동시켜 하측으로 흘러내려 모인 잔수를 모두 배수한다.(S2208)If it is determined that the set time has elapsed, the controller 14 operates the drainage pump 10 to drain all the residual water collected and flowed downward (S2208).
잔수를 배수하는 동안, 수위센서(20)는 수위를 감지하고, 제어부(14)는 감지된 수위가 미리 설정된 배수 완료 수위에 도달하였는지 여부를 판단한다.(S2209)While draining the remaining water, the water level sensor 20 detects the water level, and the controller 14 determines whether the detected water level has reached a preset drainage completion level (S2209).
감지된 수위가 배수 완료 수위에 도달하였다고 판단되면, 배수펌프(10)의 작동을 정지한다.(S2210)If it is determined that the sensed water level has reached the drainage completion level, the operation of the drainage pump 10 is stopped (S2210).
상기와 같이, 배수가 정지되면, 제어부(14)는 세탁기(100) 내에 모든 잔수가 배수되었다고 판단하고, 상기 전원공급장치(19)를 제어하여, 전력을 차단하고 전원을 오프한다. As described above, when the drainage is stopped, the control unit 14 determines that all the remaining water in the washing machine 100 is drained, and controls the power supply device 19 to cut off the power and turn off the power.
상기와 같이, 세탁, 헹굼, 탈수, 포풀림 행정이 차례로 수행되는 세탁기의 경우에는, 상기 포풀림 행정 이후에 잔수를 제거하기 위한 대기단계를 수행할 수 있다. 즉, 상기 대기단계는 세탁을 위한 모든 행정이 끝나고, 전원이 오프되기 직전에 수행되는 것이 가장 효과적이다. As described above, in the case of a washing machine in which washing, rinsing, dehydration, and inflation strokes are sequentially performed, a waiting step for removing residual water may be performed after the inflation stroke. In other words, the waiting step is most effectively performed after all the strokes for washing are finished and immediately before the power is turned off.
상기와 같이 본 발명의 실시예에서는, 사용자에 의해 대기 명령이 입력된 경우에 대기 과정을 수행하는 것으로 한정하여 설명하였으나, 이에 한정되지 않고 사용자가 한번 대기 명령을 입력해 놓으면 사용자가 다시 해제되기 전까지는 세탁기의 작동횟수에 관계없이 항상 대기 과정이 수행되는 것도 가능하고, 극저온 환경에서 사용하는 세탁기의 경우에는 사용자의 별도 입력 없이 전원이 오프되기 직전에 대기 과정이 항상 수행되는 것도 물론 가능하다.As described above, the embodiment of the present invention has been described as being limited to performing a waiting process when a standby command is input by the user. However, the present invention is not limited thereto, and the user inputs the standby command once until the user is released again. The standby process may be always performed regardless of the number of operations of the washing machine. In the case of a washing machine used in a cryogenic environment, the standby process may be performed immediately before the power is turned off without a separate input by the user.
이상에서 도 21 내지 도 22를 참조하여 설명한, 본발명의 제 16 내지 17 실시예들은, 본명세서에 기재된 다른 실시예들에서 세탁기의 전원을 오프하기 전에 잔수를 제거하기 위해 적용되는 것이 가능함을 명시한다. 여기서, 세탁, 헹굼 및 탈수 중 어느 것이 완료된 이후이든지 세탁기의 전원이 오프될 수 있음은 물론이다.The sixteenth to seventeenth embodiments of the present invention, described above with reference to FIGS. 21 to 22, can be applied in other embodiments described in the present specification to remove residual water before turning off the washing machine. do. Here, the washing machine may be turned off even after any of washing, rinsing, and dehydration is completed.
도 23은 급수밸브가 해동될 시의 출력전압변화(a)와, 배수펌프가 해동될 시의 출력전압변화(b)를 도시한 그래프이다.FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
본발명의 일 실시예에 따른 세탁기는, 세탁기를 구성하는 각종 전장품에 전원이 공급될 시, 상기 전장품으로부터 출력되는 출력전압의 변화를 감지하여, 상기 전장품의 동결여부를 판단할 수 있다.The washing machine according to an embodiment of the present invention may determine whether the electronic device is frozen by detecting a change in the output voltage output from the electronic device when power is supplied to various electronic devices constituting the washing machine.
전압감지부(18, 도 2 참조)는 세탁기를 구성하는 각종 전장품에 전원이 공급될 시, 상기 전장품으로부터 출력되는 출력전압을 감지하는 것이다. 이하, 전압감지부(17)는 급수밸브(6)의 출력전압을 감지하거나, 배수밸브(8)의 출력전압을 감지하거나, 또는 배수펌프(10)의 출력전압을 감지하도록 구비될 수 있다.The voltage detecting unit 18 (refer to FIG. 2) detects an output voltage output from the electric appliances when power is supplied to various electric appliances constituting the washing machine. Hereinafter, the voltage detecting unit 17 may be provided to detect the output voltage of the water supply valve 6, the output voltage of the drain valve 8, or the output voltage of the drain pump 10.
보다 상세하게, 전압감지부(17)가 급수밸브(6)의 출력전압을 감지하도록 구비되는 것이면, 급수밸브(6)의 출력전압의 변화량에 따라 급수밸브(6)의 동결여부가 판단될 수 있다.More specifically, if the voltage sensing unit 17 is provided to detect the output voltage of the water supply valve 6, it is determined whether the water supply valve 6 is frozen according to the change amount of the output voltage of the water supply valve 6. have.
전압감지부(17)가 배수밸브(8)의 출력전압을 감지하도록 구비되는 것이면, 배수밸브(8)의 출력전압의 변화량에 따라 배수밸브(8)의 동결여부가 판단될 수 있다.If the voltage detecting unit 17 is provided to detect the output voltage of the drain valve 8, it may be determined whether the drain valve 8 is frozen according to the amount of change in the output voltage of the drain valve 8.
전압감지부(17)가 배수펌프(10)의 출력전압을 감지하도록 구비되는 것이면, 배수펌프(10)의 출력전압의 변화량에 따라 배수펌프(10)의 동결여부가 판단될 수 있다.If the voltage sensing unit 17 is provided to detect the output voltage of the drain pump 10, it may be determined whether the drain pump 10 is frozen according to the amount of change in the output voltage of the drain pump 10.
한편, 제어부(14)는 급수밸브(6), 배수밸브(8) 및 배수펌프(10)와 전기적으로 상호 통신하는바, 급수밸브(6), 배수밸브(8) 및 배수펌프(10)로부터 제어부(14)로 인가되는 출력신호의 변화를 통해 동결여부를 감지하는 것도 가능할 것이다.On the other hand, the controller 14 is in electrical communication with the water supply valve 6, the drain valve 8 and the drain pump 10, from the water supply valve 6, the drain valve 8 and the drain pump 10 It may also be possible to detect whether or not to freeze through a change in the output signal applied to the controller 14.
또한, 본발명의 일 실시예에 따른 세탁기는, 급수밸브(6), 배수밸브(8) 및 배수펌프(10) 등의 전장품에 전원을 인가하는 회로 구성에 따라서는, 상기 전장품으로부터 출력되는 출력전류의 변화량을 통해서도 동결여부를 판단할 수 있을 것이다.In addition, the washing machine according to an embodiment of the present invention, according to the circuit configuration for applying power to the electrical equipment, such as the water supply valve 6, the drain valve 8 and the drain pump 10, output from the electrical equipment It can be determined whether the freezing is also based on the amount of change in the current.
따라서, 이하 설명하는 내용은 급수밸브(6), 배수밸브(8) 또는 배수펌프(10)의 출력전압의 변화량에 따라 동결여부가 감지되는 것으로 설명하나, 본원발명은 급수밸브(6), 배수밸브(8) 또는 배수펌프(10) 등의 전장품의 출력전류의 변화량을 감지하고, 이를 통해 동결여부를 판단하는 것도 가능함을 명시한다.Therefore, the following description will be described as freezing is detected depending on the amount of change in the output voltage of the water supply valve (6), drain valve (8) or drain pump (10), the present invention is a water supply valve (6), drain Note that it is also possible to detect the amount of change in the output current of the electrical equipment such as the valve 8 or the drainage pump 10 and determine whether it is frozen.
또한, 히터(28)는 세탁수를 가열하기 위해 외조(2) 내에 구비될 수 있다. 다르게는, 히터(28)는 급수밸브(6), 배수밸브(8) 또는 배수펌프(10)에 구비될 수 있다. 또한, 급수밸브(6) 또는 배수밸브(8)는 솔레노이드 밸브로 구현될 수 있다.In addition, the heater 28 may be provided in the outer tub 2 to heat the wash water. Alternatively, the heater 28 may be provided in the water supply valve 6, the drain valve 8 or the drain pump 10. In addition, the water supply valve 6 or the drain valve 8 may be implemented as a solenoid valve.
도 23는 급수밸브(6)를 개방시켜 급수를 한 다음, 배수펌프(10)를 작동시켜 배수를 하고, 급수밸브(6)가 잠기고 배수펌프(10)의 작동이 정지된 상태에서 영하 이하의 온도로 설정된 챔버(chamber)내에 세탁기를 장시간 방치하여 동결되도록 한 후, 챔버 내의 온도를 높이고 급수밸브(6) 및 배수펌프(10)에 소정의 전원을 인가하면서 급수밸브(6)의 출력전압(a) 및 배수펌프(10)의 출력전압(b)을 측정한 것을 도시한 것이다.23 shows the water supply by opening the water supply valve 6, and then operating the drainage pump 10 to drain the water, and the water supply valve 6 is locked and the operation of the drainage pump 10 is below zero. After the washing machine is left in a chamber set to a temperature for a long time to freeze, the temperature in the chamber is increased, and a predetermined power is applied to the water supply valve 6 and the drain pump 10, and the output voltage of the water supply valve 6 a) and the measurement of the output voltage b of the drain pump 10 are shown.
도 23의(a)에 도시된 바와 같이, 급수밸브(6)는 T1부근에서 출력전압이 급격하게 떨어지게 되는데, 이는 T1 부근에서 급수밸브(6) 내에 잔존해 있던 세탁수가 녹기 때문이다. 즉, T1 부근에서 급수밸브(6)의 해동이 이루어진다. 여기서, Vvalve는 급수밸브(6)가 동결된 상태에서의 출력전압값이고, Vvalve_ref는 급수밸브(6)의 해동이 완료된 상태에서의 출력전압값이고, △Vvalve는 Vvalve와 Vvalve_ref 의 차이값이다.As shown in FIG. 23A, the water supply valve 6 suddenly drops its output voltage near T1 because the wash water remaining in the water supply valve 6 near T1 melts. In other words, the water supply valve 6 is thawed in the vicinity of T1. Here, Vvalve is an output voltage value when the water supply valve 6 is frozen, Vvalve_ref is an output voltage value when thawing of the water supply valve 6 is completed, and ΔVvalve is a difference value between Vvalve and Vvalve_ref.
마찬가지로, 도 23의(b)에 도시된 바와 같이, 배수펌프(10)는 T2부근에서 출력전압이 급격하게 떨어지게 되는데, 이는 T2 부근에서 배수펌프(10) 내에 잔존해 있던 세탁수가 녹기 때문이다. 즉, T2부근에서 배수펌프(10)의 해동이 이루어진다. 여기서, Vpump는 배수펌프(10)가 동결된 상태에서의 출력전압값이고, Vpump_ref는 배수펌프(10)의 해동이 완료된 상태에서의 출력전압값이고, △Vpump는 Vpump와 Vpump_ref 의 차이값이다.Similarly, as shown in (b) of FIG. 23, the output voltage of the drain pump 10 drops sharply in the vicinity of T2 because the wash water remaining in the drain pump 10 near T2 melts. That is, thawing of the drain pump 10 is performed near T2. Here, Vpump is an output voltage value when the drain pump 10 is frozen, Vpump_ref is an output voltage value when thawing of the drain pump 10 is completed, and ΔVpump is a difference value between Vpump and Vpump_ref.
여기서, 배수펌프(10)의 해동시간(T2)이 급수밸브(6)의 해동시간(T1)보다 긴 이유는, 배수펌프(10) 내에 잔존한 세탁수의 양이 급수밸브(6) 보다 상대적으로 많기 때문이다.Here, the reason why the thawing time T2 of the drain pump 10 is longer than the thawing time T1 of the water supply valve 6 is that the amount of wash water remaining in the drain pump 10 is relatively higher than that of the water supply valve 6. Because there are many.
도 23를 통해서는, 급수밸브(6)와 배수펌프(10)가 동결된 상태에서 해동이 이루어질 시의 출력전압의 변화량(△Vvalve, △Vpump)을 알 수 있으나, 이를 역으로 생각하면, 급수밸브(6)와 배수펌프(10)의 동결이 이루어지는 과정에서도 마찬가지로 각각 △Vvalve 및 △Vpump에 상당하는 출력전압의 변화량이 감지될 것임을 예측할 수 있다.Referring to FIG. 23, it can be seen that the amount of change (ΔVvalve, ΔVpump) of the output voltage when thawing is performed while the water supply valve 6 and the drain pump 10 are frozen, but the reverse of this, In the process of freezing the valve 6 and the drain pump 10, it can be predicted that the amount of change in the output voltage corresponding to ΔVvalve and ΔVpump will be sensed, respectively.
또한, 도 23에는 배수밸브(8)의 출력전압의 변화는 도시되어 있지 않으나, 배수밸브(8) 역시 도 23의(a)에 도시된 바와 유사한 형태의 출력전압 변화를 보일 것이다.In addition, although the change in the output voltage of the drain valve 8 is not shown in FIG. 23, the drain valve 8 will also show a change in output voltage in a form similar to that shown in FIG.
본원발명은 급수밸브(6), 배수밸브(8) 및/또는 배수펌프(10) 등의 세탁기를 이루는 각종 전장품에 소정의 전원이 인가될 시, 상기 전장품의 출력전압의 변화량을 감지하고, 상기 출력전압이 소정값 이상 감소한 것으로 감지될 시 해동을 수행한다.The present invention detects the amount of change in the output voltage of the electrical equipment when a predetermined power is applied to the various electrical appliances that make up the washing machine, such as the water supply valve (6), the drain valve (8) and / or the drainage pump (10), If it detects that the output voltage has decreased by more than a predetermined value, it defrosts.
도 24는 본 발명의 제 18 실시예에 따른 세탁기의 제어방법을 도시한 순서도이다. 도 24를 참조하여 보다 상세하게 설명한다.24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention. This will be described in more detail with reference to FIG. 24.
본 실시예에는 세탁기의 동결여부를 감지하고, 동결이 감지되면 해동을 수행하여 세탁기가 동결되는 것을 방지하는 동결방지를 수행한다.In this embodiment, the freezing of the washing machine is detected, and if the freezing is detected, thawing is performed to prevent freezing of the washing machine.
상기 동결방지는 다음과 같은 두 가지 방식에 의해 수행될 수 있다. The freezing prevention can be performed in two ways as follows.
첫째는, 세탁, 헹굼 또는 탈수가 수행되지 않고 세탁기가 대기중인 상태이면 자동으로 동결방지가 개시되는 것이다. 사용자가 세탁기의 동결을 방지하기 위한 별도의 조치를 취할 필요가 없는 이점이 있다.First, freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
둘째는, 도 2에 도시된 바와 같이, 세탁기에 동결방지를 선택할 수 있는 동결방지 선택부(16)를 구비하는 것으로, 사용자가 동결방지 선택부(16)를 통해 선택한 경우에 한해 동결방지가 실시되는 것이다.Second, as shown in Figure 2, the washing machine is provided with a freezing prevention selection unit 16 to select the freeze protection, freeze protection is performed only when the user selects through the freeze protection selection unit 16 Will be.
도 24에 도시된 순서도는 급수밸브(6), 배수밸브(8) 및 배수펌프(10) 중 어느 것의 동결방지에도 동일하게 적용될 수 있으며, 이하, 설명의 중복을 피하기 위해 급수밸브(6)를 예로 들어 설명한다.The flow chart shown in FIG. 24 may be equally applicable to freezing prevention of any of the water supply valve 6, the drain valve 8 and the drain pump 10. Hereinafter, the water supply valve 6 will be replaced to avoid duplication of explanation. An example will be described.
도 24을 참조하면, 본 실시예에 따른 세탁기의 제어방법은, 소정의 전원을 급수밸브(6)에 공급하며 출력전압을 감지한다(S2401). 급수밸브(6)의 출력전압(V)은 전압감지부(17)에 의해 감지될 수 있다.Referring to FIG. 24, in the control method of the washing machine according to the present embodiment, a predetermined power is supplied to the water supply valve 6 and the output voltage is sensed (S2401). The output voltage V of the water supply valve 6 may be sensed by the voltage sensing unit 17.
급수밸브(6)의 출력전압(V)이 소정값(△V) 이상 감소한 것으로 감지될 시, 표시부(22)를 통해 세탁기가 동결되었음을 알리는 동결알림표시를 한다(S2402, S2403). 표시부(22)는 동결알림표시가 시각적으로 표시되도록 하는 것, 또는 청각적으로 표시되도록 하는 것일 수 있다. 전자의 예는 표시부(22)가 LCD, LED 또는 다이오드 등인 경우를 들 수 있고, 후자의 예로는 표시부(22)가 부져(buzzer)나 스피커인 경우를 들 수 있다. When it is detected that the output voltage V of the water supply valve 6 decreases by a predetermined value (ΔV) or more, the display unit 22 displays a freezing notification indicating that the washing machine is frozen (S2402, S2403). The display unit 22 may be configured to visually display the freezing notification display or to display the freezing notification. An example of the former may include a case in which the display unit 22 is an LCD, an LED, a diode, or the like. An example of the latter may include a case in which the display unit 22 is a buzzer or a speaker.
한편, S2402단계에서 출력전압(V)의 변화량이 소정값(△V) 보다 작으면 다시 S1단계로 리턴하여 출력전압(V)을 감지한다.On the other hand, if the amount of change in the output voltage (V) is smaller than the predetermined value (ΔV) in step S2402 and returns to step S1 to detect the output voltage (V).
한편, S2403단계에서 동결알림표시가 된 후, 해동단계가 수행된다(S2404). 해동단계(S2404)는 히터(28)를 작동시켜 급수밸브(6)에 열을 가하는 것이거나, 급수밸브(22)를 작동시의 자체 발열을 이용한 것일 수 있다. 여기서, 히터(28) 또는 급수밸브(22)는 소정 주기로 작동과 중단이 반복될 수 있다.On the other hand, after the freeze notification display in step S2403, the thawing step is performed (S2404). The thawing step (S2404) may be to apply heat to the water supply valve 6 by operating the heater 28, or may use self-heating when the water supply valve 22 is operated. Here, the heater 28 or the water supply valve 22 may be repeatedly operated and stopped at a predetermined cycle.
여기서, 히터(28)는 전술한 바와 같이, 세탁수를 가열하기 위한 것(이 경우, 히터(28)는 외조(2) 내에 구비되는 것이 바람직하다.)이거나, 급수밸브(6)에 구비되거나, 배수밸브(8) 또는 배수펌프(10)에 구비된 것일 수 있다.Here, the heater 28 is for heating the wash water as described above (in this case, the heater 28 is preferably provided in the outer tank 2), or is provided in the water supply valve 6 The drain valve 8 or the drain pump 10 may be provided.
급수밸브(6)에 직접적으로 열을 가하기 위해, 히터(28)는 급수밸브(6)에 구비되는 것이 바람직하다.In order to directly heat the feed valve 6, the heater 28 is preferably provided in the feed valve (6).
한편, 전술한 바와 같이, 본 실시예는 배수밸브(8) 또는 배수펌프(10)의 동결방지 시에도 동일하게 적용될 수 있는바, 배수밸브(8)의 해동을 수행하기 위해서는 히터(28)가 배수밸브(8)에 구비되는 것이 바람직하고, 배수펌프(10)의 해동을 수행하기 위해서는 히터(28)가 배수펌프(10)에 구비되는 것이 바람직하다. On the other hand, as described above, the present embodiment may be equally applicable to the freezing prevention of the drain valve 8 or the drain pump 10, the heater 28 is to perform the thawing of the drain valve (8) It is preferable that the drain valve 8 is provided, and in order to perform thawing of the drain pump 10, the heater 28 is preferably provided in the drain pump 10.
S2404단계 이후, 다시 급수밸브(6)의 출력전압을 감지하고(S2405), 출력전압(V)의 증가량이 소정값(△V) 이상인 것으로 감지될 시, 히터(28)의 작동을 정지시키고, 동결알림표시를 해제시킨다(S2406, S2407). S2405단계에서 급수밸브(6)의 출력전압(V)은 전압감지부(17)에 의해 감지될 수 있다.After the step S2404, the output voltage of the water supply valve 6 is again sensed (S2405), and when the increase amount of the output voltage V is detected to be greater than or equal to the predetermined value (ΔV), the operation of the heater 28 is stopped, The freeze notification display is released (S2406, S2407). In operation S2405, the output voltage V of the water supply valve 6 may be detected by the voltage sensing unit 17.
반면, S2406단계에서 출력전압(V)의 증가량이 소정치(△V) 이내이면, 다시 S2405단계로 리턴하여 출력전압(V)을 감지한다.On the contrary, if the increase amount of the output voltage V is within the predetermined value? V in step S2406, the flow returns to step S2405 to detect the output voltage V. FIG.
도 25는 본 발명의 일 실시예에 따른 동결 관리 시스템의 제어 흐름을 도시한 블록도이다.25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
도 25를 참조하면, 본 발명의 실시예에 따른 세탁기의 동결 관리 시스템은, 유/무선 통신이 가능한 세탁기(100)와, 세탁기(100)와 근거리 또는 원거리에서 신호를 송수신할 수 있는 원격 조정장치(200)와, 세탁기(100)와 원격 조정장치(200) 사이의 신호를 전달하기 위한 통신 매체를 포함한다.Referring to FIG. 25, a freezing management system for a washing machine according to an embodiment of the present invention includes a washing machine 100 capable of wired / wireless communication and a remote control device capable of transmitting and receiving a signal at a short distance or long distance from the washing machine 100. And a communication medium for transmitting a signal between the washing machine 100 and the remote controller 200.
세탁기(100)는 기본적으로 포를 세탁하는 작동을 수행할 수 있으며, 부가적으로는 내부에 있는 세탁수의 동결을 감지하고, 동결을 방지하기 위한 동작을 수행할 수 있다. The washing machine 100 may basically perform an operation of washing the cloth, and additionally, may detect the freezing of the washing water therein and perform an operation for preventing freezing.
세탁기(100)는 세탁수의 동결 여부를 감지하는 동결 감지부(110)와, 동결 감지부(110)에서 감지된 신호를 원격 조정장치(200)로 전송하는 제어부(14)를 포함한다.The washing machine 100 includes a freezing detector 110 for detecting whether the washing water is frozen, and a controller 14 for transmitting a signal detected by the freezing detector 110 to the remote controller 200.
또한, 세탁기(100)는 세탁수의 동결을 방지하는 동결 방지부(120)를 더 포함하고, 제어부(14)는 원격 조정장치(200)로부터 세탁기(100)로 수신된 동결 방지 신호에 따라 동결 방지부(120)의 작동을 제어할 수 있다. In addition, the washing machine 100 further includes a freezing prevention unit 120 to prevent freezing of the washing water, and the control unit 14 freezes according to the freezing prevention signal received from the remote controller 200 to the washing machine 100. The operation of the prevention unit 120 may be controlled.
세탁기(100)는 동결 감지부(110)와 동결 방지부(120) 중 어느 하나만 구비되는 것도 가능하고, 둘 다 구비되는 것도 물론 가능하다. 본 실시예에서는, 세탁기(100)는 동결 감지부(110)와 동결 방지부(120)를 모두 구비하는 것으로 한정하여 설명한다.The washing machine 100 may be provided with only one of the freezing detection unit 110 and the freezing prevention unit 120, and of course, both may be provided. In the present embodiment, the washing machine 100 will be described as being limited to having both the freezing detection unit 110 and the freezing prevention unit 120.
동결 감지부(110)는 세탁기(100)내의 온도를 측정하거나, 급/배수 정도를 확인하여 제어부(14)로 정보를 전송함으로써, 제어부(14)는 동결을 감지할 수 있다. The freezing detection unit 110 measures the temperature in the washing machine 100 or checks the degree of supply / drainage and transmits the information to the control unit 14, whereby the control unit 14 may detect the freezing.
동결 감지부(110)는, 세탁기(100)내의 공기 온도나 세탁수의 온도를 측정하는 온도센서(18)와, 세탁기(100) 내의 수위를 감지하는 수위센서(20)를 포함할 수 있다. The freezing detection unit 110 may include a temperature sensor 18 measuring air temperature or washing water temperature in the washing machine 100, and a water level sensor 20 detecting a water level in the washing machine 100.
세탁기(100)는 세탁수가 담기는 외조(2)를 포함하고, 온도센서(18)는 외조(2) 내에 배치될 수 있다. 외조(2)내에 소정 수위 이상의 세탁수가 담기어 온도센서(18)가 세탁수에 잠기는 경우, 온도센서(20)는 세탁수의 온도를 감지할 수 있고, 그 외의 경우에는 세탁기(100) 내의 공기의 온도를 감지할 수 있다.The washing machine 100 may include an outer tub 2 containing wash water, and the temperature sensor 18 may be disposed in the outer tub 2. When the wash water of a predetermined level or more is contained in the outer tank 2 and the temperature sensor 18 is immersed in the wash water, the temperature sensor 20 may detect the temperature of the wash water, and in other cases, the air in the washing machine 100 may be It can detect the temperature of.
또한, 세탁기(100)는 사용자로부터 세탁기(100)의 작동 전반에 대한 각종 명령을 입력받는 입력부(15)를 더 포함한다. 입력부(15)는 사용자가 동결 감지나 동결 방지를 위한 요청 명령을 직접 입력할 수 있도록 구성되는 것도 물론 가능하다. In addition, the washing machine 100 further includes an input unit 15 that receives various commands for overall operation of the washing machine 100 from a user. The input unit 15 may of course be configured to allow a user to directly input a request command for freezing detection or freezing prevention.
동결 방지부(120)는 히터(28)나 기타 전장품 등을 이용하여 세탁기 내부의 공기나 세탁수를 가열함으로써, 세탁수의 동결을 방지할 수 있다. 히터(28)는 외조(2)의 하부에 배치되어 세탁수를 가열하는 것도 가능하고, 세탁기(100)를 구성하는 각종 구성품에 배치되어 각종 구성품의 동결을 방지하기 위해 가열하는 것도 가능하다.The freezing prevention unit 120 may prevent freezing of the washing water by heating the air or the washing water inside the washing machine by using the heater 28 or other electrical equipment. The heater 28 may be disposed under the outer tub 2 to heat the wash water, and may be disposed on various components constituting the washing machine 100 and heated to prevent freezing of the various components.
또한, 세탁기(100)는, 전화선 또는 인터넷 망을 통해 제어 정보를 송수신하는 서버(미도시)가 내장될 수 있다. In addition, the washing machine 100 may include a server (not shown) for transmitting and receiving control information through a telephone line or an internet network.
원격 조정장치(200)는 핸드폰, 컴퓨터, 전화 등을 포함할 수 있다. 원격 조정장치(200)는 세탁기(100)에서 감지된 세탁수의 동결 여부를 수신하여 표시하거나, 세탁기(100)로 동결방지 신호를 송신할 수 있다. The remote control apparatus 200 may include a mobile phone, a computer, a telephone, and the like. The remote control apparatus 200 may receive and display whether the washing water sensed by the washing machine 100 is frozen or transmit a freezing prevention signal to the washing machine 100.
원격 조정장치(200)는 세탁수의 동결 여부 감지에 대한 사용자의 요청 명령이 입력되는 입력부(210)와, 세탁수의 동결 여부를 시각 또는 청각적으로 표시하는 표시부(220)와, 입력부(210)에 입력된 명령을 신호로써 후술하는 통신 네트워크(150)로 전송하거나 통신네트워크(150)로부터 받은 신호를 표시부(220)에 표시하는 것을 제어하는 마이컴(230)을 포함할 수 있다.The remote control apparatus 200 may include an input unit 210 for inputting a user's request command for detecting whether the wash water is frozen, a display unit 220 for visually or audibly displaying whether the wash water is frozen, and an input unit 210. It may include a microcomputer 230 for transmitting a command to the communication network 150 to be described later as a signal or to display the signal received from the communication network 150 on the display unit 220.
상기 통신 매체는, 세탁기(100)와 원격 조정장치(200) 간의 데이터 통신을 수행하는 통신 네트워크(150)를 말한다. 통신 네트워크(150)는 전력선 통신 매체이거나, 무선주파수 통신매체가 사용될 수 있다. 통신 네트워크(150)는 세탁기(100)와 원격 조정장치(200)가 근거리뿐만 아니라 원거리에 있을 때에도 적절한 정보 송수신이 이루어지도록 한다.The communication medium refers to a communication network 150 that performs data communication between the washing machine 100 and the remote controller 200. The communication network 150 may be a power line communication medium, or a radio frequency communication medium may be used. The communication network 150 allows the washing machine 100 and the remote control apparatus 200 to transmit and receive information appropriately even when the remote control apparatus 200 is located at a short distance as well as a long distance.
도 26은 세탁기의 동결 관리 방법의 제 1 실시예를 도시한 순서도이다.26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
도 26을 참조하면, 사용자가 외출을 하거나, 여행을 떠난 경우, 집에 있는 세탁기(100) 내의 동결 여부를 감지하기를 원할 수 있다. 이러한 경우, 사용자는 가지고 있는 상기 원격 조정장치(200)의 입력부(210)를 통해, 동결감지명령을 입력할 수 있다.(S2601)Referring to FIG. 26, when a user goes out or goes on a trip, the user may want to detect whether the washing machine 100 is frozen in the home. In this case, the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2601).
입력부(210)에 동결감지 명령이 입력되면, 원격 조정장치(200)의 마이컴은 이를 신호로써 변환하여 통신네트워크(150)로 전송한다. 통신네트워크(150)는 세탁기(100)로 동결감지신호를 전달한다.(S2602)When the freeze detection command is input to the input unit 210, the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150. The communication network 150 transmits a freezing detection signal to the washing machine 100. (S2602)
세탁기(100)의 제어부(14)는 동결 감지부(110)를 이용하여, 세탁기 내의 세탁수의 동결 여부를 판단할 수 있다.(S2603) 세탁수의 동결 여부를 감지하는 방법은 다양하게 적용될 수 있다. The control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2603). The method of detecting whether the washing water is frozen may be variously applied. have.
예를 들어, 온도센서(18)를 이용하여, 온도센서(18)에서 감지된 온도가 기설정된 온도 이하이면, 세탁수가 동결되었다고 판단할 수 있다. 또는, 급수밸브(6)를 통해 소정의 수위까지 급수를 시작하고, 이후 배수펌프(10)를 작동시켜 배수를 수행한다. 배수가 진행되는 동안 수위센서(20)를 이용하여 수위 변화를 감지한다. 설정 시간동안 배수가 진행되었음에도 불구하고, 충분히 배수가 이루어지지 않은 경우, 배수펌프(10)를 포함한 배수 어셈블리 내에 동결이 발생하여 배수가 정상적으로 이루어지지 않았다고 판단할 수 있다.(S2603)For example, when the temperature sensed by the temperature sensor 18 is below the preset temperature using the temperature sensor 18, it may be determined that the wash water is frozen. Alternatively, water supply is started to the predetermined water level through the water supply valve 6, and then the drainage pump 10 is operated to perform drainage. The water level sensor 20 detects a water level change while the water is being drained. Even though the drainage proceeds for a predetermined time, when the drainage is not sufficiently performed, it may be determined that freezing occurs in the drainage assembly including the drainage pump 10 so that drainage was not normally performed. (S2603)
상기와 같은 동결 감지 방법 등을 이용하여, 제어부(14)는 세탁기(100)내의 동결 여부를 판단하고, 그에 따른 동결판단신호를 통신 네트워크(150)를 이용하여 원격 조정 장치(200)로 전송한다.(S2604)Using the freezing detection method as described above, the control unit 14 determines whether the freezing in the washing machine 100, and transmits the freezing determination signal according to the remote control device 200 using the communication network 150. (S2604)
원격 조정 장치(200)의 마이컴(230)은 통신 네트워크(150)를 통해 전송받은 동결판단신호를 표시부(220)를 통해 표시할 수 있다.(S2605)The microcomputer 230 of the remote control apparatus 200 may display the frozen determination signal received through the communication network 150 through the display unit 220 (S2605).
표시부(220)를 통해 동결여부에 대한 정보가 표시되면, 사용자는 원거리에서도 집에 있는 세탁기(100)의 동결 여부를 알 수 있다. 동결이 되었다고 표시될 경우, 사용자는 그에 따른 조치를 신속하게 취할 수 있기 때문에, 배수 어셈블리 등의 부품 고장을 줄일 수 있다.When the information on whether the freezing is displayed through the display unit 220, the user can know whether the washing machine 100 in the home is frozen even from a long distance. If it is indicated that the freezing has been performed, the user can quickly take a corresponding action, thereby reducing component failures such as the drainage assembly.
도 27은 세탁기의 동결 관리 방법의 제 2 실시예를 도시한 순서도이다.27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
도 27을 참조하면, 사용자가 외출을 하거나, 여행을 떠난 경우, 집에 있는 세탁기 내의 동결 여부를 감지하기를 원할 수 있다. 이러한 경우, 사용자는 가지고 있는 원격 조정장치(200)의 입력부(210)를 통해, 동결감지명령을 입력할 수 있다.(S2701)Referring to FIG. 27, when the user goes out or travels, the user may want to detect whether the freezing in the washing machine at home is performed. In this case, the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2701).
입력부(210)에 동결감지 명령이 입력되면, 원격 조정장치(200)의 마이컴은 이를 신호로써 변환하여 통신네트워크(150)로 전송한다. 통신네트워크(150)는 세탁기(100)로 동결감지신호를 전달한다.(S2702)When the freeze detection command is input to the input unit 210, the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150. The communication network 150 transmits a freezing detection signal to the washing machine 100. (S2702)
세탁기(100)의 제어부(14)는 동결 감지부(110)를 이용하여, 세탁기 내의 세탁수의 동결 여부를 판단할 수 있다.(S2703) 동결 감지부(110)를 이용한 동결감지방법은 전술한 제 1실시예와 동일하므로 그에 따른 설명은 생략한다.The control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2703). The freezing detection method using the freezing detection unit 110 is described above. Since it is the same as the first embodiment, description thereof will be omitted.
제어부(14)는 세탁기(100)내의 동결 여부를 판단하고, 그에 따른 동결판단신호를 통신 네트워크(150)를 이용하여 원격 조정 장치(200)로 전송한다.(S2704)The controller 14 determines whether the washing machine 100 is frozen, and transmits the freezing determination signal to the remote controller 200 using the communication network 150 (S2704).
원격 조정 장치(200)의 마이컴(230)은 통신 네트워크(150)를 통해 전송받은 동결판단신호를 표시부(220)를 통해 표시할 수 있다.(S2705)The microcomputer 230 of the remote control apparatus 200 may display the freezing determination signal received through the communication network 150 through the display unit 220 (S2705).
사용자가 원격 조정 장치(200)의 표시부(220)에 표시된 정보를 보고, 동결방지작동을 수행하고자 할 경우, 입력부(210)를 통해 동결방진신호를 입력할 수 있다.(S2706)When the user sees the information displayed on the display unit 220 of the remote control apparatus 200 and wants to perform the freezing prevention operation, the user may input a freeze vibration prevention signal through the input unit 210 (S2706).
입력부(210)에 동결방지신호가 입력되면, 마이컴(230)은 통신 네트워크(150)를 통해 세탁기(100)로 동결방지신호를 전송한다.(S2707)When the freezing prevention signal is input to the input unit 210, the microcomputer 230 transmits the freezing prevention signal to the washing machine 100 through the communication network 150 (S2707).
동결방지신호를 전송 받은 세탁기(100)는, 동결 방지부(120)를 통해 동결방지작동을 수행할 수 있다. 동결방지를 위한 동작은 다양하게 적용될 수 있다. The washing machine 100 receiving the freeze protection signal may perform a freeze prevention operation through the freeze protection unit 120. The operation for preventing freezing may be variously applied.
예를 들어, 급수밸브(6)를 열어 소정의 수위만큼 급수를 한 후, 히터(28)를 이용해 세탁수를 가열하여 세탁기(100)내의 온도를 높임으로써 동결을 방지할 수 있다. 또한, 세탁기를 구성하는 각종 구성품에 구비된 히터(28)를 작동시켜, 각종 구성품의 동결을 방지하는 것도 물론 가능하다. 히터(28)의 작동은 온도센서에서 감지된 온도가 기설정된 온도에 도달할 때까지 수행하는 것도 가능하고, 히터(28)의 작동이 개시한 시점으로부터 설정시간이 경과할 때까지 수행될 수 있다.(S2708)For example, after opening the water supply valve 6 to supply water to a predetermined level, freezing may be prevented by heating the washing water using the heater 28 to increase the temperature in the washing machine 100. In addition, it is also possible to prevent the freezing of the various components by operating the heater 28 provided in the various components constituting the washing machine. The operation of the heater 28 may be performed until the temperature sensed by the temperature sensor reaches a preset temperature, and may be performed until the set time has elapsed from the time when the operation of the heater 28 starts. (S2708)
상기와 같은 동결방지 작동이 끝나면, 제어부(14)는 작동완료 신호를 통신 네트워크(150)를 통해 원격 조정장치(200)로 전송할 수 있다.(S2709)When the freeze protection operation is completed, the control unit 14 may transmit the operation completion signal to the remote control apparatus 200 through the communication network 150. (S2709)
원격 조정장치(200)는 전송받은 작동완료신호를 표시부(220)를 통해 표시할 수 있다.(S2710)The remote control apparatus 200 may display the received operation completion signal through the display unit 220. (S2710)
사용자는 표시부(220)에 표시된 내용을 인식하고, 편히 외출이나 여행을 할 수 있다.The user recognizes the content displayed on the display unit 220 and can go out or travel comfortably.
도 28은 세탁기의 동결 관리 방법의 제 3 실시예를 도시한 순서도이다.28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
도 28을 참조하면, 사용자가 근거리 또는 원거리에서 세탁기의 동결 여부에 관계없이, 동결 방지를 위한 동작을 명령하고자 할 경우, 원격 조정장치(200)의 입력부(210)를 통해 동결방지명령을 입력할 수 있다.(S2801)Referring to FIG. 28, when a user wants to command an operation for preventing freezing regardless of whether the washing machine is frozen at a short distance or at a distance, the user may input a freeze prevention command through the input unit 210 of the remote control apparatus 200. (S2801)
동결방지명령이 입력되면, 마이컴(230)은 통신네트워크(150)를 통해 세탁기(100)로 동결방지신호를 전송한다.(S2802)When the freezing prevention command is input, the microcomputer 230 transmits a freezing prevention signal to the washing machine 100 through the communication network 150 (S2802).
동결방지신호를 전송받은 세탁기(100)의 제어부(14)는 동결방지부(120)를 이용하여 동결방지 작동을 수행한다.(S2803)The control unit 14 of the washing machine 100 receiving the freezing prevention signal performs the freezing prevention operation by using the freezing prevention unit 120 (S2803).
동결방지 작동에 대한 상세한 내용은 전술한 제 2실시예와 동일하므로 그에 따른 설명은 생략한다.Details of the anti-freezing operation are the same as in the above-described second embodiment, and thus description thereof will be omitted.
동결방지 작동이 완료되면, 제어부(14)는 작동완료신호를 원격조정장치(200)로 전송한다.(S2804)When the freezing prevention operation is completed, the control unit 14 transmits the operation completion signal to the remote control device 200. (S2804)
원격조정장치(200)는 전송받은 작동완료신호를 표시부(220)를 통해 표시할 수 있다.(S2805)The remote control apparatus 200 may display the received operation completion signal through the display unit 220 (S2805).

Claims (19)

  1. 급수밸브, 배수밸브 및 배수펌프 중 적어도 하나를 구비한 세탁기의 제어방법에 있어서,In the control method of the washing machine having at least one of the water supply valve, the drain valve and the drain pump,
    상기 세탁기에 구비된 상기 급수밸브, 배수밸브 또는 배수펌프에 구비된 온도센서를 통해 온도를 감지하는 (a)단계; 및(A) sensing a temperature through a temperature sensor provided in the water supply valve, the drain valve or the drain pump provided in the washing machine; And
    상기 (a)단계에서 감지된 온도가 설정온도보다 낮을 시, 상기 온도센서가 구비된 상기 급수밸브, 배수밸브 또는 배수펌프를 작동시키는 (b)단계를 포함하는 세탁기의 제어방법.And (b) operating the water supply valve, the drain valve or the drain pump equipped with the temperature sensor when the temperature sensed in the step (a) is lower than the set temperature.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 (b)단계는,In step (b),
    상기 급수밸브, 배수밸브 또는 배수펌프가 일정 시간 주기로 작동 및 중지가 반복되도록 제어하는 단계를 포함하는 세탁기의 제어방법.And controlling the water supply valve, the drain valve, or the drain pump to repeat operation and stop at a predetermined time period.
  3. 제 1 항에 있어서,The method of claim 1,
    세탁, 헹굼 또는 탈수가 수행되지 않고 세탁기가 대기중인 상태에서는 제 1 전원 공급부를 통해 상기 온도센서에 전원을 공급하고,When washing, rinsing, or dehydration is not performed and the washing machine is waiting, power is supplied to the temperature sensor through a first power supply unit.
    상기 급수밸브, 배수밸브 또는 배수펌프의 작동 시에는 제 2 전원 공급부를 통해 전원을 공급하는 세탁기의 제어방법.Control method of the washing machine for supplying power through the second power supply when the water supply valve, drain valve or drain pump.
  4. 세탁수를 급수하기 전에, 외조 내의 수위가 설정수위 이상인 경우에 배수를 수행하는 (a)단계;(A) performing draining when the water level in the outer tank is equal to or higher than the set level before supplying the washing water;
    상기 (a)단계에서 배수되는데 걸리는 시간이 설정시간 이상이면 세탁기 내부의 온도를 기준온도와 비교하는 (b)단계; 및(B) comparing the temperature inside the washing machine with a reference temperature when the time taken for draining in the step (a) is greater than or equal to a set time; And
    상기 (b)단계에서 세탁기 내부의 온도가 상기 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (c)단계를 포함하는 세탁기의 제어방법.And (c) outputting a first error message when the temperature inside the washing machine is lower than the reference temperature in the step (b).
  5. 제 4 항에 있어서,The method of claim 4, wherein
    상기 (a)단계는,In step (a),
    상기 외조 내의 수위가, 세탁기의 행정이 개시되기 전에 오버 플로우가 발생하였는지 여부를 판단하기 위해 설정된 제 1 설정수위보다 높은 경우 배수를 수행하는 (a-1)단계를 포함하는 세탁기의 제어방법.And (a-1) performing draining when the water level in the outer tank is higher than the first set water level set to determine whether an overflow occurs before the stroke of the washing machine starts.
  6. 제 5 항에 있어서,The method of claim 5,
    상기 (b)단계는,In step (b),
    상기 (a-1)단계에서 제 1 배수설정시간 경과 시까지 상기 외조 내의 수위가 제 2 설정수위에 도달하지 못한 경우, 세탁기 내부의 온도를 제 1 기준온도와 비교하는 (b-1)단계를 포함하고, (B-1) comparing the temperature inside the washing machine with the first reference temperature when the water level in the outer tub does not reach the second set level until the first drainage set time elapses in the step (a-1). Including,
    상기 (c)단계는,Step (c) is,
    상기 (b-1)단계에서 세탁기 내부의 온도가 상기 제 1 기준온도보다 낮은 경우 상기 제 1 에러 메세지를 출력하는 세탁기의 제어방법.And controlling the washing machine to output the first error message when the temperature inside the washing machine is lower than the first reference temperature in the step (b-1).
  7. 제 5 항에 있어서,The method of claim 5,
    상기 (a-1)단계는,Step (a-1),
    상기 외조 내의 수위가 상기 제 1 설정수위보다 높은 경우 제 2 에러 메세지를 출력하는 단계; 및Outputting a second error message if the water level in the outer tank is higher than the first set water level; And
    제 1 배수설정시간 경과 전에 상기 외조 내의 수위가 제 2 설정수위에 도달한 경우 상기 제 2 에러 메세지의 출력을 중단하는 단계를 더 포함하는 세탁기의 제어방법.And stopping the output of the second error message when the water level in the outer tub reaches the second set level before the first drainage set time has elapsed.
  8. 제 7 항에 있어서,The method of claim 7, wherein
    상기 제 2 에러 메세지는,The second error message is
    상기 외조에 오버플로우가 발생하였음을 알리는 메세지인 세탁기의 제어방법.The control method of the washing machine is a message indicating that the overflow occurred in the outer tank.
  9. 제 6 항에 있어서,The method of claim 6,
    상기 제 1 에러 메세지는,The first error message is
    상기 외조 내의 세탁기를 외부로 배수하는 배수부가 동결되었음을 알리는 메세지인 세탁기의 제어방법.The control method of the washing machine which is a message indicating that the drainage portion for draining the washing machine in the outer tank to the outside.
  10. 외조 내로 세탁수를 급수하기 전에, 상기 외조 내의 수위가 오버 플로우가 발생하였는지 여부를 판단하기 위해 설정된 제 1 설정수위보다 높은 경우 배수를 수행하는 (a)단계;(A) performing draining when the water level in the outer tank is higher than the first set water level set to determine whether an overflow has occurred before water is supplied into the outer tank;
    상기 (a)단계 이후 상기 외조 내의 수위가 상기 제 1 설정수위보다 낮게 설정된 제 2 설정수위보다 높은 경우 배수를 수행하는 (b)단계;(B) performing draining when the water level in the outer tank is higher than the second set water level lower than the first set water level after the step (a);
    상기 (b)단계에서 소정 수위까지 배수하는데 걸리는 시간이 소정의 배수설정시간보다 크면 세탁기 내부의 온도를 소정의 기준온도와 비교하는 (c)단계; 및(C) comparing the temperature inside the washing machine with a predetermined reference temperature when the time taken for draining up to a predetermined water level in step (b) is greater than a predetermined drainage setting time; And
    상기 (c)단계에서 세탁기 내부의 온도가 상기 소정의 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (d)단계를 포함하는 세탁기의 제어방법.And (d) outputting a first error message if the temperature inside the washing machine is lower than the predetermined reference temperature in the step (c).
  11. 제 10 항에 있어서,The method of claim 10,
    상기 (c)단계에서,In the step (c),
    세탁기 내부의 온도가 상기 소정의 기준온도보다 높으면 제 3 에러 메세지를 출력하는 세탁기의 제어방법.And a third error message if the temperature inside the washing machine is higher than the predetermined reference temperature.
  12. 외조 내로 급수가 이루어지기 전에 온도를 감지하는 (a)단계;(A) detecting a temperature before water is supplied into the outer tank;
    상기 외조 내로 급수를 하는 (b)단계;(B) supplying water into the tub;
    상기 외조 내의 수위를 감지하는 (c)단계; 및(C) detecting the water level in the outer tank; And
    상기 (a)단계에서 감지된 온도가 기준온도보다 낮고, 제 1 설정시간 내에 상기 외조 내의 수위가 제 1 설정수위에 이르지 못하는 경우 제 5 에러메세지를 출력하는 (d)단계를 포함하는 세탁기의 제어방법.And (d) outputting a fifth error message when the temperature sensed in the step (a) is lower than the reference temperature and the water level in the outer tank does not reach the first set level within the first set time. Way.
  13. 제 12 항에 있어서,The method of claim 12,
    상기 기준온도는 영하의 값으로 설정된 것인 세탁기의 제어방법.The reference temperature is a control method of a washing machine is set to a value of minus zero.
  14. 제 12 항에 있어서,The method of claim 12,
    상기 (d)단계는,In step (d),
    세탁기의 작동을 정지시키는 단계를 포함하는 세탁기의 제어방법.The control method of the washing machine comprising the step of stopping the operation of the washing machine.
  15. 제 12 항에 있어서,The method of claim 12,
    상기 (a)단계에서 감지된 온도가 상기 기준온도보다 높고, 상기 제 1 설정시간 내에 상기 외조 내의 수위가 제 1 설정수위에 이르지 못하는 경우 제 6 에러 메시지를 출력하는 단계를 더 포함하는 세탁기의 제어방법.And outputting a sixth error message when the temperature sensed in the step (a) is higher than the reference temperature and the water level in the outer tub within the first set time does not reach the first set water level. Way.
  16. 제 12 항에 있어서,The method of claim 12,
    상기 (b)단계 이전에 세탁조 내로 투입된 포의 양을 감지하는 (e)단계를 더 포함하고,(E) detecting the amount of the cloth introduced into the washing tank before the step (b);
    상기 (e)단계에서 감지된 포량에 따라 상기 (b)단계에서 이루어지는 급수의 목표수위가 설정되고,The target water level of the water supply made in the step (b) is set according to the detected quantity in the step (e),
    상기 (d) 단계에서의 제 1 설정시간은,The first setting time in the step (d),
    상기 (b)단계에서 정상적으로 급수가 이루어지는 경우를 기준으로 상기 외조 내의 수위가 상기 목표수위에 도달하는데 걸리는 시간보다 짧은 값으로 설정된 세탁기의 제어방법.The control method of the washing machine is set to a value shorter than the time it takes for the water level in the outer tank to reach the target water level on the basis of the case where the normal water supply in step (b).
  17. 제 16 항에 있어서,The method of claim 16,
    상기 외조 내의 수위가 상기 목표수위에 도달하면 급수를 중단하고 세탁을 수행하는 (f)단계;(F) stopping water supply and performing washing when the water level in the outer tank reaches the target water level;
    상기 외조 내의 세탁수를 배수시키는 (g)단계;(G) draining the washing water in the outer tub;
    상기 배수가 수행되는 중에 외조 내의 수위를 감지하는 (h)단계; 및(H) detecting the water level in the outer tank while the drainage is performed; And
    상기 (h)단계에서 감지된 수위가 제 2 설정시간 내에 제 2 설정수위 이하에 도달하지 않으면, 상기 제 5 에러 메시지를 출력하는 (i)단계를 더 포함하는 세탁기의 제어방법.And (i) outputting the fifth error message if the water level detected in the step (h) does not reach below the second set water level within a second set time.
  18. 제 17 항에 있어서,The method of claim 17,
    상기 (h)단계에서 감지된 수위가 상기 제 2 설정시간 내에 상기 제 2 설정수위 이하에 도달하면, 제 7 에러 메세지를 출력하는 단계를 더 포함하는 세탁기의 제어방법.And outputting a seventh error message when the water level detected in the step (h) reaches or below the second set water level within the second set time.
  19. 제 1 항에 있어서,The method of claim 1,
    전원을 오프하기 전에 설정시간동안 작동을 멈추고 대기하는 대기단계와;A standby step of stopping operation and waiting for a set time before turning off the power;
    상기 설정시간이 경과하면, 배수를 수행하여 잔수를 제거하는 배수단계를 더 포함하는 세탁기의 제어방법.The control method of the washing machine further comprises a drainage step of removing the residual water by performing drainage, if the set time elapses.
PCT/KR2011/004950 2010-07-06 2011-07-06 Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine WO2012005514A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11803800.9A EP2592181B1 (en) 2010-07-06 2011-07-06 Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine
AU2011274716A AU2011274716B2 (en) 2010-07-06 2011-07-06 Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine
CN201180035580.2A CN103025945B (en) 2010-07-06 2011-07-06 The control method of washing machine and the freezing management system of washing machine
US13/807,939 US20130239336A1 (en) 2010-07-06 2011-07-06 Method For Controlling The Operation Of A Washing Machine, And System For Controlling Freezes For A Washing Machine
RU2013104884/12A RU2530422C1 (en) 2010-07-06 2011-07-06 Method of operating washing machine (versions)
BR112013000153A BR112013000153A2 (en) 2010-07-06 2011-07-06 method for controlling the operation of a washing machine including at least one water supply pump, a drain valve and a drain pump

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
KR10-2010-0065049 2010-07-06
KR1020100065049A KR101689719B1 (en) 2010-07-06 2010-07-06 A control method of the washing machine
KR10-2010-0073613 2010-07-29
KR1020100073613A KR20120011639A (en) 2010-07-29 2010-07-29 A laundry treatment machine and the control method of the same
KR10-2010-0073609 2010-07-29
KR1020100073609A KR101711836B1 (en) 2010-07-29 2010-07-29 A freezing control system of washing machin
KR10-2010-0074242 2010-07-30
KR1020100074238A KR20120012213A (en) 2010-07-30 2010-07-30 A controlling method of the washing machine
KR10-2010-0074239 2010-07-30
KR1020100074242A KR20120012217A (en) 2010-07-30 2010-07-30 A washing machine and controlling method of the washing machine
KR10-2010-0074238 2010-07-30
KR1020100074239A KR101774808B1 (en) 2010-07-30 2010-07-30 A washing machine
KR1020110066987A KR20130005531A (en) 2011-07-06 2011-07-06 Control method of washing machine
KR10-2011-0066987 2011-07-06

Publications (2)

Publication Number Publication Date
WO2012005514A2 true WO2012005514A2 (en) 2012-01-12
WO2012005514A3 WO2012005514A3 (en) 2012-05-31

Family

ID=45441654

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/004950 WO2012005514A2 (en) 2010-07-06 2011-07-06 Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine

Country Status (7)

Country Link
US (1) US20130239336A1 (en)
EP (1) EP2592181B1 (en)
CN (1) CN103025945B (en)
AU (1) AU2011274716B2 (en)
BR (1) BR112013000153A2 (en)
RU (1) RU2530422C1 (en)
WO (1) WO2012005514A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866527A (en) * 2012-12-10 2014-06-18 东部大宇电子株式会社 Freeze protection method for washing machine

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140084950A (en) * 2012-12-27 2014-07-07 동부대우전자 주식회사 Dry device and method for drum type washer
KR102148200B1 (en) * 2013-09-04 2020-08-27 삼성전자주식회사 Washing apparatus and controlling method thereof
US10581274B2 (en) 2015-06-03 2020-03-03 Lg Electronics Inc. Home appliance
KR101698792B1 (en) * 2015-06-03 2017-01-23 엘지전자 주식회사 Home appliance
US20170327995A1 (en) * 2016-05-13 2017-11-16 General Electric Company Hydraulically Powered Lid Lock Assembly
KR102466662B1 (en) * 2016-06-14 2022-11-14 엘지전자 주식회사 Washing machine and method for contolling the same
KR102488034B1 (en) * 2018-02-13 2023-01-13 엘지전자 주식회사 Control method for laundry treating apparatus
JP7289045B2 (en) * 2018-02-27 2023-06-09 パナソニックＩｐマネジメント株式会社 washing machine
US10995443B2 (en) * 2018-03-12 2021-05-04 Clarence Wheeler Washer/dryer appliance comprising weight sensing technology
KR102102654B1 (en) * 2018-04-18 2020-05-29 엘지전자 주식회사 A lAundry treAting AppArAtus And A Control method of the sAme
US10465324B1 (en) * 2018-05-31 2019-11-05 Haier Us Appliance Solutions, Inc. Method for detecting a low water level in a washing machine appliance
KR20190116189A (en) * 2019-09-23 2019-10-14 엘지전자 주식회사 Apparatus and method for predicting freezing of washing machine
KR20210051962A (en) * 2019-10-31 2021-05-10 엘지전자 주식회사 Laundry treatment machine and laundry treatment system including the same
US12000081B2 (en) 2021-03-18 2024-06-04 Haier Us Appliance Solutions, Inc. Travel cycle for a condenser or heat pump dryer appliance
CN114018310B (en) * 2021-09-17 2023-11-03 合肥美的洗衣机有限公司 Method and device for detecting icing of sewer, electronic equipment and storage medium

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280888A (en) * 1985-05-20 1986-12-11 三洋電機株式会社 Washing machine
JPH0316549A (en) * 1989-06-14 1991-01-24 Matsushita Electric Ind Co Ltd Device for preventing freezing of water remaining in dish washer
KR100707355B1 (en) * 1999-08-18 2007-04-13 삼성전자주식회사 Method of controlling supply water for a washing machine
KR20050118896A (en) * 2004-06-15 2005-12-20 삼성전자주식회사 Drain pump & drum type washing machine having the same
KR101243967B1 (en) * 2006-02-15 2013-03-14 엘지전자 주식회사 Washing machine and its operating method
KR100713949B1 (en) * 2006-04-21 2007-05-07 삼성전자주식회사 Washing machine and control method thereof
KR100762266B1 (en) * 2006-05-03 2007-10-01 삼성전자주식회사 Washing machine and method for preventing freezing thereof
CN1924169A (en) * 2006-05-19 2007-03-07 南京乐金熊猫电器有限公司 Frost-cracking proof structure of barrel washing machine steam generator
KR101291271B1 (en) * 2006-07-27 2013-07-30 엘지전자 주식회사 Ice melting method drum type washing machine
KR101424556B1 (en) * 2007-03-17 2014-07-31 삼성전자 주식회사 Washing machine and control method of thereof
KR101609681B1 (en) * 2009-06-30 2016-04-20 삼성전자 주식회사 Washing machine and method to control thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None
See also references of EP2592181A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103866527A (en) * 2012-12-10 2014-06-18 东部大宇电子株式会社 Freeze protection method for washing machine
EP2746452A1 (en) * 2012-12-10 2014-06-25 Dongbu Daewoo Electronics Corporation Freeze protection method for washing machine

Also Published As

Publication number Publication date
RU2013104884A (en) 2014-08-20
RU2530422C1 (en) 2014-10-10
CN103025945B (en) 2015-09-02
EP2592181B1 (en) 2020-05-06
CN103025945A (en) 2013-04-03
WO2012005514A3 (en) 2012-05-31
EP2592181A2 (en) 2013-05-15
AU2011274716A1 (en) 2013-02-28
EP2592181A4 (en) 2017-05-24
US20130239336A1 (en) 2013-09-19
BR112013000153A2 (en) 2016-05-24
AU2011274716B2 (en) 2014-11-20

Similar Documents

Publication Publication Date Title
WO2012005514A2 (en) Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine
WO2015133734A1 (en) Washing machine and method for controlling same
WO2012093897A2 (en) Laundry treating apparatus and remote controller
WO2016017925A1 (en) Clothes treating system and control method therefor
WO2016010237A1 (en) Home appliance and control method for the same
WO2013015655A2 (en) Laundry machine and online system including the same
WO2012005511A2 (en) Washing machine and method for controlling the same
WO2019172497A1 (en) Refrigerator
EP2748968A1 (en) Online system and method for using the same
AU2018210637B2 (en) Dryer and method for controlling the same
WO2017010760A1 (en) Hub apparatus and method for providing service thereof
EP3047583A1 (en) Home appliance and mobile terminal
EP2737660A2 (en) Laundry machine and online system including the same
WO2019031885A1 (en) Laundry treatment apparatus and method of controlling the same
AU2018257543B2 (en) Washing machine and control method thereof
WO2019031886A1 (en) Laundry treatment apparatus and method of controlling the same
WO2022182113A1 (en) Clothing processing device and control method of clothing processing device
WO2018182124A1 (en) Washing machine
WO2018199433A1 (en) Washing machine and control method thereof
WO2020226340A1 (en) Water dispensing apparatus and control method therefor
WO2021040469A1 (en) Detergent storage container and method for manufacturing the same
WO2016159539A1 (en) Washing machine and method for controlling washing machine
WO2020153600A1 (en) Server, terminal device, and method for home appliance management thereby
WO2019164155A1 (en) Washing machine and control method therefor
EP3320655A1 (en) Hub apparatus and method for providing service thereof

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180035580.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11803800

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2011803800

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2013104884

Country of ref document: RU

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2011274716

Country of ref document: AU

Date of ref document: 20110706

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 13807939

Country of ref document: US

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112013000153

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112013000153

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20130103