WO2022021969A1 - Machine à laver - Google Patents

Machine à laver Download PDF

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Publication number
WO2022021969A1
WO2022021969A1 PCT/CN2021/090109 CN2021090109W WO2022021969A1 WO 2022021969 A1 WO2022021969 A1 WO 2022021969A1 CN 2021090109 W CN2021090109 W CN 2021090109W WO 2022021969 A1 WO2022021969 A1 WO 2022021969A1
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WO
WIPO (PCT)
Prior art keywords
detergent
water
washing
liquid level
box
Prior art date
Application number
PCT/CN2021/090109
Other languages
English (en)
Chinese (zh)
Inventor
大槻太郎
荒井英行
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
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
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202180058378.5A priority Critical patent/CN116113735A/zh
Publication of WO2022021969A1 publication Critical patent/WO2022021969A1/fr

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    • 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
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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 
    • D06F39/02—Devices for adding soap or other washing agents

Definitions

  • the present invention relates to a washing machine.
  • Patent Document 1 describes a washing machine that can automatically inject liquid detergent into a washing and dehydrating tub.
  • the washing machine of Patent Document 1 is provided with a detergent box which is provided in a casing and accommodates a liquid detergent.
  • the detergent box closes the interior by closing the replenishment port for replenishing the detergent by the detergent box cover, and has an air inflow port and a liquid discharge port.
  • the air inlet is connected to the air pump. When the air pump works, the air pressure in the closed detergent box rises, and the detergent in the detergent box is squeezed out from the liquid discharge port and put into the washing and dewatering tub. The user does not need to input a single amount of detergent into the washing machine for each washing operation, which is very convenient.
  • a structure for detecting a decrease in the remaining liquid amount in the detergent box a structure may be adopted in which a pair of electrode terminals are arranged in the detergent box, electricity is applied between the pair of electrode terminals, and continuity between the pair of electrode terminals is detected. state.
  • the pair of electrode terminals is not energized by the detergent.
  • the pair of electrode terminals when electricity is applied between the pair of electrode terminals immersed in the liquid, the pair of electrode terminals may be galvanically corroded.
  • Patent Document 1 Japanese Patent Laid-Open No. 2001-259290
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a washing machine that can detect the remaining amount of the liquid agent in the case while suppressing galvanic corrosion of the pair of electrode terminals using a pair of electrode terminals.
  • the washing machine of the main aspect of the present invention is provided with: a washing tub, which is arranged in a box, and performs washing of the laundry; a box body, which stores the liquid agent for washing; and an injection mechanism part for injecting the liquid agent in the box inside the washing tub; a pair of electrode terminals are arranged in the box body; the control unit determines whether the liquid level in the box body is lower than a predetermined liquid level based on the change of the resistance value generated between the pair of electrode terminals ; and the Notification Department.
  • the control unit performs energization between the pair of electrode terminals for a predetermined time based on the arrival of a predetermined detection time, and a replenishment condition including the liquid level in the cartridge being lower than the predetermined liquid level is satisfied,
  • the notification unit is caused to notify that the liquid medicine needs to be replenished.
  • the remaining amount of the liquid agent in the cartridge is detected using a pair of electrode terminals, and when the remaining amount becomes small, the user is notified that the liquid agent needs to be replenished. Thereby, the user can replenish the liquid medicine when the liquid medicine in the cartridge becomes low.
  • the energization between the pair of electrode terminals is performed for a predetermined time based on the arrival of a predetermined detection time, the energization between the pair of electrode terminals for a long time can be avoided, and the galvanic corrosion of the pair of electrode terminals can be suppressed.
  • the detection time may include at least one of a time when the power of the washing machine is turned on, a time when an operation for checking the remaining amount of the liquid agent is performed, and a time when a washing operation is completed.
  • the notification unit informs the time when the power of the washing machine is turned on, when the operation for checking the remaining amount of the liquid agent is performed, and when the washing operation is completed, the user is likely to appear in the vicinity of the washing machine. Therefore, it is easy to notice the notification. Therefore, by energizing between the pair of electrode terminals at at least any one of these timings, the energization can be performed efficiently and without waste, the energization time can be shortened, and the occurrence of galvanic corrosion to the pair of electrode terminals can be suppressed.
  • control unit may start accumulating the usage amount of the liquid agent for each washing operation or the washing operation based on the liquid level in the case becoming lower than the predetermined liquid level. number of runs. In this case, when the liquid level in the cartridge is lower than the predetermined liquid level and the cumulative value of the usage amount or the number of operations exceeds a predetermined threshold value, the replenishment condition is satisfied.
  • the notification part when the remaining amount of the liquid agent becomes smaller than the remaining amount when the liquid level in the cartridge is lower than the predetermined liquid level, the notification part is notified by the notification part, so that the interval for replenishing the liquid agent can be extended, and the user's troubles can be reduced. trouble.
  • the liquid agent in the box may include liquid detergent.
  • the washing machine may further include an ultrasonic cleaning device having a water storage tub that stores water containing the detergent injected by the injection mechanism, and may cause ultrasonic waves generated by an ultrasonic generator to act on the immersion Wash the laundry in the water in the water tank.
  • the detection time includes the time when the cleaning operation is completed and the time when the cleaning operation by the ultrasonic cleaning device is completed.
  • the cleaning operation performed by the ultrasonic cleaning device it is possible to remove some dirt and the like from the laundry before washing. Furthermore, when the notification unit is notified of the completion time of the washing operation and the completion of the cleaning operation by the ultrasonic cleaning apparatus, the user is likely to be near the washing machine, and the notification is easily noticed. Therefore, when the ultrasonic cleaning apparatus is provided, by energizing between the pair of electrode terminals at such a timing, the energization can be performed efficiently and without waste, the energization time can be shortened, and galvanic corrosion of the pair of electrode terminals can be suppressed.
  • a configuration may be adopted in which the control unit starts accumulating the liquid level for each cleaning operation and each cleaning operation based on the liquid level in the case becoming lower than the predetermined liquid level.
  • the usage amount of the detergent or the number of operations of the washing operation and the cleaning operation is satisfied.
  • the notification part is notified by the notification unit, so that the interval for replenishing the liquid agent can be extended, and the reduction of trouble for users. Furthermore, not only the detergent usage amount or the number of operations of the washing operation but also the detergent usage amount or the number of operations of the cleaning operation performed by the ultrasonic cleaning device are accumulated, so that the detergent usage amount or the number of operations can be accurately obtained.
  • the present invention it is possible to provide a washing machine that can detect the remaining amount of the liquid agent in the case while suppressing galvanic corrosion of the pair of electrode terminals using a pair of electrode terminals.
  • FIG. 1 is a side sectional view of the fully automatic washing machine according to the embodiment.
  • FIG. 2( a ) is a perspective view of the ultrasonic cleaning apparatus and the upper panel in a state in which the ultrasonic cleaning unit and the water storage unit according to the embodiment are accommodated in the accommodating unit.
  • (b) and (c) of FIG. 2 are perspective views of the ultrasonic cleaning apparatus and main parts of the upper panel in a state in which the ultrasonic cleaning unit and the water storage unit of the embodiment are pulled out from the storage unit.
  • FIG. 3 is a perspective view of the ultrasonic cleaning apparatus in a state in which the water storage unit is detached from the main body according to the embodiment.
  • FIG. 4 is a side sectional view of an ultrasonic cleaning part and a main body part according to the embodiment.
  • FIG. 5 is a diagram schematically showing the configuration of the water supply apparatus according to the embodiment.
  • Fig. 6(a) and (b) are a plan view and a bottom view of the detergent box according to the embodiment, respectively, and Fig. 6(c) is an A-A' cross-sectional view of Fig. 6(a).
  • FIG. 7 are a plan view and a bottom view of the softener cartridge according to the embodiment, respectively, and (c) of FIG. 7 is a cross-sectional view taken along the line B-B' of (a) of FIG. 7 .
  • FIG. 8 is a block diagram showing the configuration of the fully automatic washing machine according to the embodiment.
  • FIG. 9 is a flowchart showing control processing for the liquid medicine replenishment notification function according to the embodiment.
  • FIG. 10 are flowcharts showing a first replenishment notification process and a second replenishment notification process included in the control process for the liquid medicine replenishment notification function according to the embodiment, respectively.
  • washing machine automatic washing machine
  • 10 box body
  • 22 washing and dewatering bucket (washing bucket);
  • 50 ultrasonic cleaning device
  • 80 water supply device
  • 110 ultrasonic generator
  • 210 water storage bucket
  • 400 detergent case (case body); 421, 422: a pair of electrode terminals
  • 500 softener case (case body); 521, 522: a pair of electrode terminals
  • 600 water supply unit (injection mechanism part);
  • 720 display part (notifying Department); 801: Control Department.
  • FIG. 1 is a side sectional view of the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 includes a case 10 forming an outer contour.
  • the box 10 includes a rectangular cylindrical body portion 11 whose upper and lower surfaces are open, an upper panel 12 covering the upper surface of the body portion 11 , and a footrest 13 supporting the body portion 11 .
  • the upper panel 12 is formed with a laundry inlet 14 .
  • the input port 14 is covered with an upper cover 15 which can be opened and closed freely.
  • the control unit 16 is arranged inside the front part of the upper panel 12 . The control unit 16 controls the washing operation performed by the fully automatic washing machine 1 and the cleaning operation performed by the ultrasonic cleaning device 50 .
  • the outer tub 20 with the upper surface opened is elastically suspended and supported in the box 10 by four suspension bars 21 with anti-vibration devices.
  • a washing and dewatering tub 22 whose upper surface is opened is arranged inside the outer tub 20, a washing and dewatering tub 22 whose upper surface is opened is arranged.
  • the washing and dewatering tub 22 rotates around a rotating shaft extending in the vertical direction.
  • a large number of dewatering holes 22a are formed on the inner peripheral surface of the washing and dewatering tub 22 over the entire circumference.
  • a balance ring 23 is provided on the upper part of the washing and dewatering tub 22 .
  • a pulsator 24 is arranged at the bottom of the washing and dewatering tub 22 . On the surface of the pulsator 24, a plurality of blades 24a are radially provided. It should be noted that the washing and dewatering tub 22 corresponds to the "washing tub" of the present invention.
  • a drive unit 30 that generates torque for driving the washing and dewatering tub 22 and the pulsator 24 is disposed on the outer bottom of the outer tub 20 .
  • the drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32 .
  • the transmission mechanism part 32 has a clutch mechanism 32a, and by the switching operation by the clutch mechanism 32a, the torque of the drive motor 31 is only transmitted to the pulsator 24 during the washing process and the rinsing process, and only the pulsator 24 is rotated.
  • the torque of the driving motor 31 is transmitted to the pulsator 24 and the washing and dehydrating tub 22, so that the pulsating wheel 24 and the washing and dehydrating tub 22 rotate integrally.
  • the drain port part 20a is formed in the outer bottom part of the outer tub 20, the drain port part 20a is formed.
  • the drain valve 40 is provided in the drain port part 20a.
  • the drain valve 40 is connected to a drain hose 41 . When the drain valve 40 is opened, the water stored in the washing and dewatering tub 22 and the outer tub 20 is discharged to the outside of the machine through the drain hose 41 .
  • An overflow port 20b is formed in the upper part of the outer tub 20 .
  • the water is discharged from the overflow port 20b.
  • An overflow receiving portion 25 is provided on the outer surface of the outer tub 20 so as to cover the overflow port 20b.
  • One end of the overflow pipe 26 is connected to the bottom of the overflow receiving portion 25 .
  • the other end of the overflow pipe 26 is connected to the drain hose 41 .
  • the water discharged from the overflow port 20 b is received by the overflow water receiving portion 25 and then flows to the drain hose 41 through the overflow pipe 26 .
  • the ultrasonic cleaning apparatus 50 is arrange
  • the storage tank 60 is arrange
  • Detergent-containing water to be supplied to the water storage tub 210 of the ultrasonic cleaning device 50 is stored in the storage tank 60 as washing water.
  • the storage tank 60 is provided with a supply valve 61 that opens and closes the outlet of the washing water from the tank.
  • the drain receiving portion 70 receives the water drained from the water storage tub 210 .
  • a drain hole 71 through which the received water is drained is formed in the drain receiving portion 70 .
  • One end of the drain pipe 72 is connected to the discharge hole 71 .
  • the other end of the drain pipe 72 is connected to the upper part of the overflow pipe 26 .
  • the water received by the drain receiving portion 70 is discharged to the drain hose 41 through the drain pipe 72 and the overflow pipe 26 .
  • the water supply apparatus 80 is arrange
  • the water supply device 80 is connected to the faucet, and has a function of supplying water to the washing and dewatering tub 22 .
  • the water supply device 80 also functions as an automatic injection device that automatically injects liquid detergent and softener into the washing and dewatering tub 22 .
  • the water supply device 80 has a function of supplying the washing water to the storage tank 60 .
  • detergents and softeners are liquid agents for washing, and the detergents and softeners are sometimes collectively referred to as "liquid agents" hereinafter.
  • FIG. 2(a) is a perspective view of the ultrasonic cleaning apparatus 50 and the upper panel 12 in a state in which the ultrasonic cleaning unit 100 and the water storage unit 200 are accommodated in the accommodating unit 17.
  • FIGS. 2( b ) and ( c ) are perspective views of main parts of the ultrasonic cleaning apparatus 50 and the upper panel 12 in a state in which the ultrasonic cleaning unit 100 and the water storage unit 200 are pulled out from the storage unit 17 .
  • FIG. 2( c ) the illustration of the cover 17 b is omitted in order to see the inside of the housing portion 17 .
  • the upper panel 12 is provided with an accommodation portion 17 in which the ultrasonic cleaning apparatus 50 is accommodated in the central portion of the rear.
  • the front of the accommodating part 17 in the upper panel 12 is opened as an entrance 17a.
  • a cover 17b is provided at the entrance and exit 17a.
  • the ultrasonic cleaning device 50 includes an ultrasonic cleaning unit 100 , a water storage unit 200 , and a main body unit 300 .
  • the ultrasonic cleaning unit 100 has an ultrasonic generator that generates ultrasonic waves.
  • the water storage part 200 is provided with a water storage tub 210 which is located below the ultrasonic generator and stores washing water. The washing water is supplied to the water storage tub 210 from the supply nozzle 62 connected to the supply valve 61 of the storage tank 60 .
  • the ultrasonic cleaning device 50 when the cleaning operation is performed, the ultrasonic cleaning device 50 is pulled forward from the housing portion 17 and protrudes inside the input port 14 of the upper panel 12 .
  • the ultrasonic cleaning apparatus 50 when the cleaning operation is not performed, the ultrasonic cleaning apparatus 50 is accommodated in the accommodating portion 17 .
  • the inlet/outlet 17a of the accommodating part 17 is closed by the cover 17b.
  • a funnel-shaped detergent injection port 18 is formed at the left rear of the injection port 14
  • a funnel-shaped softener injection port 19 is formed at the right rear of the injection port 14 .
  • the opening 18a formed in the center part of the detergent injection port 18 is connected to the input port of the detergent box 400 mentioned later.
  • the filter 410 is attached to the input port through the opening 18a.
  • the opening 19a formed in the center part of the softener injection port 19 is connected to the input port of the softener cartridge 500 mentioned later.
  • the filter 510 is attached to the input port through the opening 19a.
  • the liquid detergent is injected into the detergent box 400 through the detergent injection port 18
  • the liquid softener is injected into the softener box 500 through the softener injection port 19 .
  • FIG. 3 is a perspective view of the ultrasonic cleaning apparatus 50 in a state in which the water storage unit 200 is separated from the main body unit 300 .
  • FIG. 4 is a side cross-sectional view of the ultrasonic cleaning unit 100 and the main body 300 .
  • the ultrasonic cleaning part 100 of the ultrasonic cleaning device 50 is held by the main body part 300 , and the water storage part 200 is detachably attached to the main body part 300 .
  • the ultrasonic cleaning unit 100 includes an ultrasonic generator 110 and a casing 120 .
  • the ultrasonic generator 110 includes an ultrasonic vibrator 111 and a vibration horn 112 coupled to the ultrasonic vibrator 111 .
  • the ultrasonic generator 110 generates ultrasonic waves from the tip of the vibration horn 112 by the high-frequency vibration of the ultrasonic vibrator 111 .
  • the housing 120 has an arm shape long in the front-rear direction, and a distal end portion 121 thereof is bent downward.
  • the ultrasonic generator 110 is arranged in the front part of the casing 120 .
  • the distal end portion of the vibration horn 112 is exposed from the opening portion 122 of the housing 120 .
  • the rear part 123 of the casing 120 is fixed to the upper part of the main body part 300 .
  • a handle 201 is formed on the front surface.
  • the water storage tub 210 having a shape conforming to the shape of the water storage portion 200 is formed in the water storage portion 200 .
  • a drain port 211 is formed in the lower part of the rear surface. The drain port 211 is blocked by the valve body 220 .
  • the valve movable member 230 is connected to the valve body 220 .
  • the rear portion 231 of the valve movable member 230 protrudes rearward of the water storage portion 200 .
  • the valve movable member 230 is urged to the rear of the valve body 220 to be closed by a spring (not shown).
  • the drain port 211 is closed by the valve body 220 .
  • the valve movable member 230 abuts on the rear wall of the drain receiving portion 70 and moves forward. Thereby, the valve body 220 moves forward, and the drain port 211 is opened.
  • the drain port 211 is opened, the washing water in the water storage tub 210 is drained to the drain receiving portion 70 .
  • FIG. 5 is a diagram schematically showing the configuration of the water supply apparatus 80 .
  • (a) and (b) of FIG. 6 are a plan view and a bottom view of the detergent box 400, respectively, and (c) of FIG. 6 is an A-A' cross-sectional view of (a) of FIG. 6 .
  • (a) and (b) of FIG. 7 are a plan view and a bottom view of the softener cartridge 500, respectively, and (c) of FIG. 7 is a cross-sectional view taken along the line B-B' of (a) of FIG. 7 .
  • the water supply device 80 includes a detergent box 400 , a softener box 500 , and a water supply unit 600 .
  • Liquid detergent is stored in the detergent box 400 .
  • the softener box 500 stores liquid softener.
  • the water supply unit 600 takes in detergent and softener from the detergent box 400 and the softener box 500 , respectively, and flows the taken detergent and softener into the washing and dehydrating tub 22 by supplying water to the washing and dehydrating tub 22 . In this way, the water supply unit 600 puts the detergent in the detergent box 400 and the softener in the softener box 500 into the washing and dehydrating tub 22 .
  • the detergent box 400 and the softener box 500 correspond to the "box body" of the present invention.
  • the water supply unit 600 corresponds to the "insertion mechanism part" of this invention.
  • the detergent box 400 is formed of, for example, a resin material, and has a box shape long in the front and rear.
  • a circular input port 401 is formed on the front side.
  • a filter 410 is attached to the input port 401 .
  • the filter 410 traps foreign matter that has entered the detergent box 400 from the inlet 401 .
  • a circular discharge portion 402 protruding downward is formed on the front side.
  • a cylindrical discharge port 403 extending rearward is formed on the peripheral surface of the discharge portion 402 .
  • the detergent case 400 includes a detergent electrode unit 420 in order to detect that the remaining amount of the detergent in the case decreases.
  • the detergent electrode unit 420 is composed of a pair of electrode terminals 421 and 422 , that is, a first electrode terminal 421 and a second electrode terminal 422 .
  • the first electrode terminal 421 and the second electrode terminal 422 are formed of a conductive material such as steel, and include round bar-shaped terminal portions 421a and 422a and heads 421b and 422b provided at the upper ends of the terminal portions 421a and 422a.
  • a male screw is formed on the upper portion of each of the terminal portions 421a and 422a.
  • channel is formed in each head 421b, 422b so that the 1st electrode terminal 421 and the 2nd electrode terminal 422 can be rotated with a screwdriver.
  • a first mounting boss 404 and a second mounting boss 405 protruding toward the inside of the box body are formed on the top surface of the detergent box 400 so as to be aligned in the left-right direction.
  • the first electrode terminal 421 and the second electrode terminal 422 are inserted into the interior of the detergent box 400 from above through the first fitting boss 404 and the second fitting boss 405 .
  • the upper portions of the respective terminal portions 421a and 422a having external threads pass through the first mounting boss 404 and the second mounting boss 405 and are fixed while being rotated. In this way, the first electrode terminal 421 and the second electrode terminal 422 are fixed to the top surface portion of the detergent box 400 .
  • the terminal parts 421 a and 422 a of the first electrode terminal 421 and the second electrode terminal 422 extend downward from the top surface of the detergent box 400 , and their front ends are located near the bottom surface of the detergent box 400 .
  • the interval between the first electrode terminal 421 and the second electrode terminal 422 is relatively small, for example, set to about ten millimeters.
  • the liquid level in the detergent box 400 is higher than the predetermined liquid level L1, that is, the remaining amount of detergent is more than the predetermined amount, and the detergent is sufficiently interposed between the pair of electrode terminals 421 and 422, the space between the pair of electrode terminals 421 and 422
  • the resistance value generated is relatively small, the liquid level in the detergent box 400 is lower than the predetermined liquid level L1, that is, the residual amount of detergent is less than the predetermined amount, and there is little or no gap between the pair of electrode terminals 421 and 422.
  • the resistance between the pair of electrode terminals 421 and 422 is relatively large because the air between them is basically air.
  • the pair of electrode terminals 421 and 422 are energized by the detergent.
  • the pair of electrode terminals 421 and 422 are not energized by the detergent.
  • the softener case 500 is formed of, for example, a resin material, and has a box shape long in the front and rear.
  • a circular injection port 501 is formed on the front side of the upper surface of the softener box 500 .
  • a filter 510 is attached to the inlet 501. The filter 510 traps foreign matter entering the softener box 500 from the inlet 501 .
  • On the bottom surface of the softener cartridge 500 a circular discharge portion 502 protruding downward is formed on the front side.
  • a cylindrical discharge port 503 extending rearward is formed on the peripheral surface of the discharge portion 502 .
  • the softener case 500 is provided with a softener electrode unit 520 in order to detect that the remaining amount of the softener in the case decreases.
  • the softener electrode unit 520 is composed of a pair of electrode terminals 521 and 522 , that is, a first electrode terminal 521 and a second electrode terminal 522 .
  • the structures of the first electrode terminal 521 and the second electrode terminal 522 are the same as those of the pair of electrode terminals 421 and 422 of the detergent electrode unit 420, and include terminal parts 521a and 522a having external threads and head parts 521b and 521b having a cross-shaped groove. 522b.
  • a first fitting boss 504 and a second fitting boss 505 are formed on the top surface of the softener box 500 .
  • the first electrode terminal 521 and the second electrode terminal 522 are inserted into the interior of the softener cartridge 500 from above through these fitting bosses 504 , 505 , and are fixed to these fitting bosses 504 , 505 .
  • the terminal parts 521 a and 522 a of the first electrode terminal 521 and the second electrode terminal 522 extend downward from the top surface of the softener case 500 , and their front ends are located near the bottom surface of the softener case 500 .
  • the interval between the first electrode terminal 521 and the second electrode terminal 522 is relatively small, for example, set to about ten millimeters.
  • the gap between the pair of electrode terminals 521 and 522 is The resulting resistance value is relatively small, the liquid level in the softener box 500 is lower than the specified liquid level L2, that is, the remaining amount of the softener is less than the specified amount, and there is little or no gap between the pair of electrode terminals 521 and 522.
  • the resistance between the pair of electrode terminals 521 and 522 is relatively large because the air between them is basically air.
  • the pair of electrode terminals 521 and 522 are energized by the softener.
  • the pair of electrode terminals 521 and 522 are not energized by the softener.
  • the water supply unit 600 includes a water passage member 610 , a water supply valve 620 , a first three-way valve 630 , a second three-way valve 640 , a third three-way valve 650 , and a pump 660 .
  • the water channel member 610 is provided with a water injection chamber 611 .
  • a water injection port 611a is formed at the front end.
  • the water injection port 611a faces above the washing and dewatering tub 22 .
  • the water channel member 610 has a first water channel 612 and a second water channel 613 connected to the water injection chamber 611 , and is provided with an inflow port 614 for water flowing into the first water channel 612 and an inflow port 615 for water flowing in the second water channel 613 . Furthermore, the branch water path 616 branched from the 1st water path 612 in order to supply water into the storage tank 60 is formed in the water path member 610. As shown in FIG. The outflow port 616a of the branch water passage 616 is connected to the inflow port of the storage tank 60 .
  • the second three-way valve 640 , the first three-way valve 630 , the pump 660 , and the third three-way valve 650 are arranged in the middle of the path from the inflow port 614 to the water injection chamber 611 in the first water passage 612 in this order from upstream. Therefore, the first water passage 612 is partitioned at the positions of the second three-way valve 640, the first three-way valve 630, the pump 660, and the third three-way valve 650, and has upstream connection ports 617a, 617b, 617c, 617d and downstream side connection ports 618a, 618b, 618c, 618d.
  • the water supply valve 620 is a so-called double valve, and has a first valve 621 and a second valve 622 whose rated flow rate is larger than that of the first valve 621 .
  • the water inlet 623 of the water supply valve 620 is connected to a faucet via a water supply hose not shown.
  • the water outlet 624 of the first valve 621 is connected to the inflow port 614
  • the water outlet 625 of the second valve 622 is connected to the inflow port 615 .
  • the first three-way valve 630 and the second three-way valve 640 have first water inlets 631, 641, second water inlets 632, 642, and water outlets 633, 643, and can be switched to make the first water inlets 631, 641 and the water outlet 633, 643 communicated, and the second water inlets 632, 642 communicated with the water outlets 633, 643.
  • the third three-way valve 650 has a water inlet 651 , a first water outlet 652 and a second water outlet 653 , and can be switched between a state in which the water inlet 651 and the first water outlet 652 communicate with each other, and a state in which the water inlet 651 and the second water outlet 653 communicate with each other. connected state.
  • the first water inlet 631 and the water outlet 633 of the first three-way valve 630 are respectively connected to the upstream connection port 617b and the downstream connection port 618b.
  • the water inlet 651 , the first water outlet 652 and the second water outlet 653 of the third three-way valve 650 are respectively connected to the upstream connection port 617d , the downstream connection port 618d and the connection port 616b of the branch water passage 616 .
  • the first water inlet 641 and the water outlet 643 of the second three-way valve 640 are connected to the upstream connection port 617a and the downstream connection port 618a, respectively.
  • Pump 660 is a piston pump.
  • the suction port 661 and the discharge port 662 of the pump 660 are connected to the upstream side connection port 617c and the downstream side connection port 618c, respectively.
  • the second water inlet 632 of the first three-way valve 630 is connected to the discharge port 403 of the detergent box 400 via a detergent supply pipe 430 made of rubber.
  • the second water inlet 642 of the second three-way valve 640 is connected to the discharge port 503 of the softener cartridge 500 via the softener supply pipe 530 made of rubber.
  • FIG. 8 is a block diagram showing the configuration of the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 is further provided with the operation part 710 and the display part 720 in addition to the structure mentioned above.
  • the control unit 16 includes a control unit 801, a storage unit 802, an operation detection unit 803, a detergent amount detection unit 804, a softener amount detection unit 805, a display drive unit 806, a motor drive unit 807, a clutch drive unit 808, and six valves Drive units 809 to 814 , pump drive unit 815 , and vibrator drive unit 816 .
  • the operation part 710 and the display part 720 can be provided in the front part of the upper panel 12 and the front part of the upper cover 15, for example.
  • the operation unit 710 includes various operation buttons such as a power ON button 711 , a power OFF button 712 , a start button 713 , a mode selection button 714 , a cleaning button 715 , a detergent injection button 716 , and a softener injection button 717 .
  • the power on button 711 and the power off button 712 are buttons for turning on and off the power to the fully automatic washing machine 1, respectively.
  • the start button 713 is a button for starting the washing operation and the washing operation.
  • the mode selection button 714 is a button for selecting an arbitrary operation mode from a plurality of operation modes of the washing operation.
  • the cleaning button 715 is a button for selecting a cleaning operation.
  • Detergent injection button 716 is a button for selecting whether to set automatic injection of detergent, and when automatic injection is set, the amount of detergent is set to any one of normal, large, and small.
  • the softener injection button 717 is a button for selecting whether to set automatic injection of the softener, and when automatic injection is set, the amount of the softener is set to any one of normal, large, and small. It should be noted that not only when the power-off button 712 is operated, but also when the washing operation is not started after the power is turned on, or the washing operation has elapsed for a predetermined time, and the washing operation is completed. The power supply of the fully automatic washing machine 1 is also turned off.
  • the display unit 720 includes a plurality of LEDs and a seven-segment display, and performs the display of the operation mode selected by the mode selection button 714, the display of the progress of the washing operation or the remaining time, and the setting of the detergent injection button 716 and the softener injection button 717.
  • the display of the determination result that is, the setting display of any one of "normal”, “large amount”, “small amount”, and “none", indicates that the detergent and softener need to be replenished, and the like.
  • the display unit 720 corresponds to the "notification unit" of the present invention.
  • the operation detection unit 803 outputs, to the control unit 801 , an operation signal corresponding to an operation button operated by the user among various operation buttons of the operation unit 710 .
  • the detergent amount detection unit 804 is connected to the pair of electrode terminals 421 and 422 of the detergent electrode unit 420 .
  • the detergent amount detection unit 804 includes a rectangular wave generating circuit and has a circuit configuration that outputs to the control unit 801 a pulse signal having a high voltage pulse width corresponding to the resistance value generated in the pair of electrode terminals 421 and 422 .
  • the pulse width of the high voltage becomes relatively wide, and the pulse width of the high voltage becomes relatively narrow.
  • the softener amount detection unit 805 is connected to a pair of electrode terminals 521 and 522 of the softener electrode unit 520 .
  • the compliance dose detection unit 805 includes a rectangular wave generating circuit, and has a circuit configuration that outputs a pulse signal having a high voltage pulse width corresponding to the resistance value generated in the pair of electrode terminals 521 and 522 to the control unit 801 .
  • the pulse width of the high voltage becomes relatively wide, and the pulse width of the high voltage becomes relatively narrow.
  • the resistance value of a detergent and a softener differs depending on the kind. Therefore, when the type of detergent stored in the detergent box 400 is changed, the high voltage of the pulse signal from the detergent amount detection unit 804 when the liquid level in the detergent box 400 is higher than the predetermined liquid level L1 Pulse width may vary. Similarly, when the type of softener stored in the softener cartridge 500 is changed, the high voltage of the pulse signal from the softener dose detection unit 805 when the liquid level in the softener cartridge 500 is higher than the predetermined liquid level L2 The pulse width may vary.
  • the display drive unit 806 , the motor drive unit 807 , the clutch drive unit 808 , the six valve drive units 809 to 814 , the pump drive unit 815 , and the vibrator drive unit 816 drive the display unit 720 and drive motors, respectively, according to control signals from the control unit 801 .
  • the storage section 802 includes an EEPROM (Erasable and Programmable Read Only Memory), a RAM (Random Access Memory), and the like.
  • the storage unit 802 stores programs for executing the washing operation in various operation modes and the washing operation by the ultrasonic cleaning apparatus 50 .
  • the storage unit 802 stores various parameters and various control flags for execution of these programs.
  • the control unit 801 includes a CPU (Central Processing Unit) and the like, and controls the display drive unit 806, A motor drive unit 807 , a clutch drive unit 808 , six valve drive units 809 to 814 , a pump drive unit 815 , a vibrator drive unit 816 , and the like.
  • CPU Central Processing Unit
  • the fully automatic washing machine 1 can perform washing operation in various operation modes. During the washing operation, a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process are performed in sequence.
  • the pulsator 24 rotates clockwise and counterclockwise when water is stored in the washing and dewatering tub 22 . Through the rotation of the pulsator 24, a water flow is generated in the washing and dewatering tub 22. During the washing process, the laundry is washed by the generated water flow and the detergent contained in the water. During the rinsing process, the laundry is rinsed by the generated water flow.
  • the washing and dehydrating tub 22 and the pulsator 24 are integrally rotated at a high speed.
  • the laundry is dehydrated by the centrifugal force generated in the washing and dehydrating tub 22 .
  • the detergent is automatically injected into the washing and dewatering tub 22 through the water supply device 80 during water supply during the washing process.
  • the third three-way valve 650 is switched to the state where the water inlet 651 and the first water outlet 652 communicate with each other, and the first water passage 612 is blocked from the storage tank 60 and connected to the water injection chamber 611 .
  • the second three-way valve 640 is switched to a state in which the first water inlet 641 and the water outlet 643 communicate with each other, and the first water passage 612 is in a state of being connected at the position of the second three-way valve 640 .
  • the first three-way valve 630 is switched to a state in which the second water inlet 632 and the water outlet 633 communicate with each other.
  • the detergent can flow into the first water passage 612 .
  • the pump 660 operates, the air on the upstream side of the pump 660 in the first water passage 612 is sucked, and the upstream side becomes negative pressure.
  • the liquid detergent in the detergent box 400 is sucked into the first water passage 612 via the detergent supply pipe 430 .
  • the amount of detergent corresponding to the operating time of the pump 660 is stored in the first water passage 612 .
  • the first three-way valve 630 is switched to a state in which the first water inlet 631 and the water outlet 633 communicate with each other. As a result, the detergent cannot flow into the first water passage 612 . Then, the first water passage 612 is connected to each other at the position of the first three-way valve 630 . As shown by the solid arrow in FIG. 5 , the first valve 621 of the water supply valve 620 is opened, and the water from the faucet is supplied into the first water passage 612 . The water flowing through the first water passage 612 washes away the detergent stored in the first water passage 612 . The detergent washed away by the water flows into the water injection chamber 611 together with the water, and is put into the washing and dewatering tub 22 from the water injection port 611a.
  • the second valve 622 is opened at the same time as the first valve 621 is opened, and water is supplied into the washing and dehydrating tub 22 .
  • the water from the faucet is supplied into the second water passage 613, flows through the second water passage 613, reaches the water filling chamber 611, and is discharged into the washing and dewatering tub 22 from the water filling port 611a.
  • the flow rate of the water flowing through the second water path 613 is larger than the flow rate of the water flowing through the first water path 612 .
  • the first valve 621 and the second valve 622 are closed to end the water supply.
  • the softener When the automatic injection of the softener is set based on the operation of the softener injection button 717 , the softener is automatically injected into the washing and dehydrating tub 22 through the water supply device 80 during water supply during rinsing. At this time, as in the cleaning process, the first water passage 612 is in a state of being connected to the water injection chamber 611 . In addition, the first three-way valve 630 is switched to a state in which the first water inlet 631 and the water outlet 633 communicate with each other, and the first water passage 612 is in a state of being connected at the position of the first three-way valve 630 .
  • the second three-way valve 640 is switched to a state in which the second water inlet 642 and the water outlet 643 communicate with each other.
  • the softener can flow into the first water passage 612 .
  • the pump 660 works, as shown by the two-dot chain line in FIG. 5 , the liquid softener in the softener box 500 is sucked into the first water passage 612 through the softener supply pipe 530 . An amount of softener corresponding to the operating time of the pump 660 is stored in the first water passage 612 .
  • the second three-way valve 640 is switched to a state in which the first water inlet 641 and the water outlet 643 communicate with each other. As a result, the softener can flow into the first water passage 612 . Then, the first water passage 612 is in a state of being connected at the position of the second three-way valve 640 . As shown by the solid arrow in FIG. 5 , the first valve 621 is opened, and the water from the faucet is supplied into the first water passage 612 . The softener stored in the first water passage 612 is washed away by the water flowing through the first water passage 612 and flows into the water filling chamber 611, and is put into the washing and dewatering tub 22 from the water filling port 611a.
  • the second valve 622 and the first valve 621 are simultaneously opened to supply water into the washing and dehydrating tub 22 .
  • the water level that is, the amount of water in the washing and dewatering tub 22 during the washing process and the rinsing process, is determined according to the load amount of the laundry detected before water supply.
  • the amount of the liquid agent put into the washing and dewatering tub 22, that is, the usage amount of the liquid agent is determined according to the amount of water.
  • the amount of the liquid medicine with respect to the reference water amount (for example, 30 liters) is stored in the storage unit 802 in advance in association with the type of each liquid medicine.
  • the user selects and sets the types of liquid chemicals stored in the detergent box 400 and the softener box 500 from various types of liquid chemicals through a predetermined setting operation.
  • the control unit 801 reads out the amount of the liquid medicine of the set type relative to the reference water amount from the storage unit 802, and calculates the amount of the liquid medicine corresponding to the water amount from the read amount of the liquid medicine and the water amount determined by the load amount. , and the calculated amount of liquid agent is used as the amount of liquid agent used in this washing operation.
  • the setting of "a large amount” or "a small amount” is performed by the detergent injection button 716 and the softener injection button 717, the calculated amount of the liquid agent is increased or decreased by a predetermined ratio as the amount of the liquid agent. Usage amount.
  • the determined usage amount of the detergent is introduced from the detergent box 400 to the first water passage 612 of the water supply unit 600 by the operation of the pump 660 .
  • the softener in the determined usage amount is introduced from the softener box 500 to the first water channel 612 of the water supply unit 600 through the operation of the pump 660 .
  • the detergent is not introduced into the water supply unit 600 from the detergent box 400 and the tap water is not supplied to the first water path 612 during the water supply during the washing process, and the washing and dehydration are not supplied.
  • Detergent is automatically put into the tub 22 .
  • water is supplied to the washing and dehydrating tub 22 only through the second water passage 613 of the water supply unit 600 .
  • the detergent is manually put into the washing and dehydrating tub 22 by the user.
  • the softener when the automatic injection of softener is not set, the softener is not introduced from the softener box 500 to the water supply unit 600 and tap water is not supplied to the first water path 612 during the water supply during the rinsing process, and the washing and dehydrating tub 22 is not supplied.
  • Softener is automatically injected inside. In this case, water is supplied to the washing and dehydrating tub 22 only through the second water passage 613 of the water supply unit 600 . The softener is manually put into the washing and dehydrating tub 22 by the user.
  • the fully automatic washing machine 1 can perform the cleaning operation by the ultrasonic cleaning device 50 .
  • the dirt adhering portion of the laundry is placed between the water storage tub 210 and the ultrasonic generator 110 .
  • the dirt adhering portion is soaked in the washing water stored in the water storage tub 210 and is in contact with the front end surface of the ultrasonic generator 110 .
  • the ultrasonic generator 110 operates, ultrasonic waves are generated from the front end thereof. By the action of ultrasonic waves, the dirt is peeled off from the object to be cleaned. At this time, the cleaning power is improved by adding the force of the detergent.
  • the cleaning water is supplied into the storage tank 60 by the water supply device 80 .
  • the supply valve 61 is closed.
  • the third three-way valve 650 is switched to a state in which the water inlet 651 and the second water outlet 653 communicate with each other.
  • the first water passage 612 is in a state of being blocked from the water injection chamber 611 and connected to the storage tank 60 via the branch water passage 616 .
  • the pump 660 is activated, and the liquid detergent in the detergent box 400 is sucked into the first water channel 612 . , stored in the first waterway 612 .
  • the first three-way valve 630 is switched to a state in which the detergent introduction path is closed and the first water passage 612 is connected at the position of the first three-way valve 630 .
  • the first valve 621 of the water supply valve 620 is opened, and the water from the faucet is supplied into the first water passage 612 .
  • the detergent stored in the first water passage 612 is washed away by the water flowing through the first water passage 612, and the detergent is mixed with the water to become washing water.
  • the washing water flows into the storage tank 60 through the branch water passage 616 .
  • the first valve 621 is closed.
  • the supply valve 61 is opened, and the washing water in the storage tank 60 is supplied into the water storage tub 210 through the supply nozzle 62 . Then, during the washing operation, whenever the washing water in the water storage tub 210 decreases due to water absorption by the laundry, a corresponding amount of washing water is replenished from the storage tank 60 to the water storage tub 210 .
  • the amount of the detergent contained in the washing water and put into the storage tank 60 is changed according to the type of the detergent stored in the detergent box 400 .
  • the control unit 801 reads the amount of detergent corresponding to the reference water amount among the types of detergent in the detergent box 400 from the storage unit 802, reduces the read amount by a predetermined ratio, and sets it as the amount of the detergent to be put in Even the dosage.
  • the washing water in the storage tank 60 When the washing water in the storage tank 60 is supplied to the water storage tub 210, the remaining amount of the washing water in the storage tank 60 decreases. In this case, the washing water is supplied from the water supply device 80 into the storage tank 60 again.
  • the usage-amount of the detergent at this time is set to be the same as the usage-amount at the time of the initial water supply, for example.
  • the second detergent usage amount may be smaller than that at the time of the first water supply.
  • the detergent usage amount in the cleaning operation is obtained by adding the initial usage amount and the second usage amount.
  • the cleaning water used in the previous cleaning operation remains in the water storage tank 210 at the start of the cleaning operation, and the cleaning water is not basically supplied from the storage tank 60 to the water storage tank 210, the storage tank is not supplied with the cleaning water. 60 The second washing water supply is performed.
  • the fully automatic washing machine 1 of the present embodiment has a function of notifying that the liquid agent needs to be replenished when the amount of the liquid agent in the detergent box 400 and the softener box 500 decreases.
  • this function will be referred to as a liquid agent replenishment notification function.
  • FIG. 9 is a flowchart showing control processing for the liquid agent replenishment notification function.
  • (a) and (b) of FIG. 10 are flowcharts showing a first replenishment notice process and a second replenishment notice process included in the control process for the liquid medicine replenishment notice function, respectively.
  • the control process of FIG. 9 is repeatedly executed by the control unit 801 in parallel, respectively.
  • the softening agent is not used in the cleaning operation by the ultrasonic cleaning apparatus 50. Therefore, regarding the softener in the softener cartridge 500, the process of determining the completion of the cleaning operation in S12 of FIG. 9 is not performed.
  • control process of the liquid agent replenishment notification function will be described by taking the control process of the detergent in the detergent box 400 as an example.
  • the control unit 801 monitors whether the washing operation is completed, whether the washing operation is completed, whether the power supply of the fully automatic washing machine 1 is turned on by the operation of the power-on button 711, and whether the confirmation for confirming the remaining amount of the liquid agent is carried out. Operations (S11, S12, S13, S14).
  • the confirmation operation may be a so-called special operation, for example, an operation of pressing the power-on button 711 and a specific operation button at the same time.
  • the control unit 801 executes the first supplemental notification process shown in FIG. 10( a ).
  • the control unit 801 energizes between the pair of electrode terminals 421 and 422 for a predetermined time, for example, 2 seconds ( S101 ). Then, the control unit 801 detects the pulse width of the high voltage of the pulse signal output from the detergent amount detection unit 804 during the energization period, and determines whether or not the liquid level in the detergent box 400 is lower than the predetermined liquid level L1 based on the detected pulse width (S102). ). Whether or not the liquid level in the detergent box 400 is lower than the predetermined liquid level L1 is determined by whether the detected pulse width is larger than a threshold value set according to the type of detergent set by the user.
  • the control unit 801 When the liquid level in the detergent box 400 is lower than the predetermined liquid level L1 (102: YES), the control unit 801 adds the detergent usage amount X in the current washing operation or in the cleaning operation to the accumulated value XT of the usage amount. , and obtain a new cumulative value XT of the usage amount (S103). Then, the control unit 801 determines whether or not the accumulated value XT of the usage amount is larger than a threshold value ( S104 ).
  • the threshold value is set, for example, when the threshold value is subtracted from the amount of detergent when the liquid level in the detergent box 400 is substantially at the predetermined liquid level L1, the detergent for one washing operation amount remains in the detergent box Such a value within 400.
  • the control unit 801 stores the accumulated value XT of the usage amount in the storage unit 802 ( S106 ). At this time, the integrated value XT of the usage amount is stored in the EEPROM of the storage unit 802 so as to be retained even when the fully automatic washing machine 1 is powered off.
  • the control unit 801 causes the display unit 720 to notify the display unit 720 that the detergent needs to be replenished in the detergent box 400 (S105). ).
  • the display unit 720 an LED assigned to a notification indicating that supplementation is required is turned on or blinked. The notification by the display unit 720 is performed for a predetermined time, for example, 20 minutes.
  • the power supply of the fully automatic washing machine 1 is turned off.
  • the control unit 801 stores the accumulated value XT of the usage amount exceeding the threshold value in the storage unit 802 (S106).
  • the control part 801 sets the integrated value XT of the usage amount to zero (S107). That is, when the accumulated value XT of the usage amount is not zero, it is reset to zero, and when the accumulated value XT of the usage amount is zero, it is maintained at zero. In addition, when the liquid level lower than predetermined liquid level L1 becomes more than predetermined liquid level L1 by replenishing detergent in detergent box 400, the integrated value XT of the usage amount is reset to zero.
  • the control unit 801 stores the accumulated value XT of the usage amount of zero in the storage unit 802 (S106).
  • the control unit 801 energizes between the pair of electrode terminals 421 and 422 for a predetermined period of time ( S201 ). Then, the control unit 801 detects the pulse width of the high voltage of the pulse signal output from the detergent amount detection unit 804 during the energization period, and determines whether or not the liquid level in the detergent box 400 is lower than the predetermined liquid level L1 based on the detected pulse width (S202). ).
  • the control unit 801 determines whether or not the integrated value XT of the usage amount is larger than the threshold value (S203). When the accumulated value XT of the usage amount is greater than the threshold value (S203: YES), the replenishment condition is satisfied, and the control unit 801 causes the display unit 720 to notify the display unit 720 to urge the detergent to be replenished in the detergent box 400 (S204). The notification by the display part 720 is performed until the power supply of the fully automatic washing machine 1 is turned off, for example. However, in the first replenishment notification process when the detergent box 400 is replenished and the washing operation is completed, when the energization state to the pair of electrode terminals 421 and 422 is confirmed, the notification is stopped.
  • the notification through the display unit 720 when it is determined that the accumulated value XT of the usage amount is larger than the threshold value refers to the case where the first replenishment after the previous washing operation or the completion of the washing operation is performed.
  • the notification process even if it is determined that the accumulated value XT of the usage amount is larger than the threshold value and the display unit 720 is notified, the user does not replenish the detergent into the detergent box 400 .
  • control unit 801 sets the accumulated value XT of the usage amount to zero (S205). Then, the control unit 801 stores the accumulated value XT of the usage amount of zero in the storage unit 802 (S206).
  • control process related to the softener in the softener box 500 is the same as the control process related to the detergent in the detergent box 400 . That is, based on the arrival of the time when the washing operation is completed, the time when the power supply of the fully automatic washing machine 1 is turned on, or the time when the confirmation operation is performed, electricity is energized between the pair of electrode terminals 521 and 522, and the softener cartridge is determined based on the conduction state thereof. Whether the liquid level in 500 is lower than the specified liquid level L2. In addition, in the state where the liquid level is lower than the predetermined liquid level L2, when the integrated value XT of the usage amount of the softener exceeds the threshold value, the display unit 720 informs it. For example, in the display unit 720, the LED assigned to the notification indicating the need to replenish the softener blinks or lights up.
  • the liquid level in the two boxes is determined. Whether or not the liquid levels are lower than the predetermined liquid levels L1 and L2 is established based on the fulfillment of the replenishment conditions including that the liquid levels are lower than the predetermined liquid levels L1 and L2, and the display unit 720 informs that the liquid agent needs to be replenished. Thereby, the user can replenish the detergent and the softener when the remaining amount of the detergent in the detergent box 400 and the softener in the softener box 500 decreases.
  • the pair of electrode terminals 421 , 422 , 521 , 522 are sent to the pair of electrode terminals 421 , 422 , 521 , 522 based on the time when the washing operation is completed, the time when the washing operation is completed, the time when the power supply of the fully automatic washing machine 1 is turned on, or the time when the confirmation operation is performed. power on between.
  • the accumulated usage amount of the liquid agent per washing operation is started, and when the liquid level is low
  • the liquid levels L1 and L2 are predetermined and the integrated value XT of the usage amount exceeds the threshold value, it is considered that the replenishment condition is satisfied, and the display unit 720 informs it.
  • the liquid agent can be replenished when the remaining amount of the liquid agent becomes smaller than the remaining amount when the liquid level is lower than the predetermined liquid levels L1 and L2. Therefore, the interval for replenishing the liquid agent can be extended, and the user's troubles can be reduced.
  • the detergent usage amount per cleaning operation performed by the ultrasonic cleaning device 50 is accumulated, so that the detergent usage amount can be accurately acquired.
  • all of the timings are the timing when the power of the fully automatic washing machine 1 is turned on by the operation of the power-on button 711 , the timing when the confirmation operation for checking the remaining amount of the liquid agent is performed, and the timing when the washing operation is completed. All of them are set as detection timings when electricity is energized between the pair of electrode terminals 421 , 422 , 521 , and 522 . However, not all of the above three times may be used as the detection time, and at least one of the times may be used as the detection time. In addition, although the time at which the washing operation is completed is set as the detection time in the above-described embodiment, the time at which the washing operation is completed may be set as the detection time.
  • the cleaning operation of the detergent and the usage amount of the cleaning operation per cleaning operation are started.
  • the display unit 720 displays the cumulative amount of the softener used in each washing operation. inform.
  • the washing operation of the detergent instead of the accumulation of the usage amount, the washing operation of the detergent, the accumulation of the operation times of the washing operation, and the accumulation of the washing operation of the softener may be started when the liquid level is lower than the predetermined liquid levels L1 and L2 and the operation frequency is When the accumulated value exceeds the threshold value, it is considered that the supplementary condition is satisfied, and the display unit 720 informs it.
  • the liquid agent can be replenished when the remaining amount of the liquid agent becomes smaller than that when the liquid levels in the detergent box 400 and the softener box 500 are lower than the predetermined liquid levels L1 and L2. Therefore, the liquid agent can be replenished. , can prolong the interval of replenishing liquid.
  • the usage amount and the number of operations are not included in the establishment conditions.
  • the liquid level in the detergent box 400 and the softener box 500 is lower than the predetermined liquid levels L1 and L2, it is considered that the replenishment condition is satisfied, and the display unit 720 informs it.
  • the fully automatic washing machine 1 is provided with the ultrasonic cleaning device 50 , and the supply nozzle 62 and the storage tank 60 are provided in order to supply water to the ultrasonic cleaning device 50 .
  • the fully automatic washing machine 1 may adopt a configuration in which the ultrasonic cleaning device 50 , the supply nozzle 62 and the storage tank 60 are not provided.
  • the third three-way valve 650 and the branch water passage 616 are not provided in the water supply device 80 .
  • the process of determining the completion of the cleaning operation in S12 is not performed.
  • the shape of the pair of electrode terminals 421, 422, 521, and 522, and the arrangement in the detergent box 400 and the softener box 500 are not limited to the above-described embodiments, and may be any shape as long as the remaining amount of the liquid agent can be detected , configuration.
  • the water supply device 80 is configured to include the detergent box 400 and the softener box 500 and to automatically inject both the detergent and the softener into the washing and dewatering tub 22 .
  • the water supply device 80 may have a structure that does not include either of the detergent box 400 and the softener box 500 .
  • the intake of the detergent and the softener is used.
  • the first water channel 612 allows detergent and softener to flow into the water supply unit 600 in the washing and dewatering tub 22 through the water flowing in the first water channel 612 .
  • an injection mechanism part having a structure different from that of the water supply unit 600 may be used.
  • the detergent amount detection unit 804 adopts a circuit configuration that outputs a pulse signal whose pulse width varies according to the resistance value generated between the pair of electrode terminals 421 and 422 of the high voltage.
  • the circuit configuration of the detection signal different from the pulse signal such as the voltage signal.
  • the compliance amount detection unit 805 may have a circuit configuration that outputs a detection signal different from the pulse signal.
  • the display unit 720 is used to notify that the liquid agent needs to be replenished.
  • notification by a loud sound such as a sound indicating the need for replenishment of the liquid agent may be performed by a speaker (not shown) provided in the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 was shown.
  • the present invention can also be applied to washing machines other than the fully automatic washing machine 1, for example, a drum-type washing machine having a horizontal-axis drum as a washing tub.
  • the present invention can also be applied to a fully automatic washer-drying machine and a drum-type washer-drying all-in-one machine with a drying function.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne une machine à laver, comprenant : un tambour de lavage et d'essorage disposé dans un logement et utilisé pour laver le linge ; une boîte de détergent (400) utilisée pour stocker un détergent liquide ; une unité d'alimentation en eau utilisée pour amener le détergent dans la boîte de détergent (400) dans le tambour de lavage et d'essorage ; une paire de bornes d'électrode (421, 422) disposées dans la boîte à détergent (400) ; une partie de commande utilisée pour déterminer si un niveau de liquide dans la boîte à détergent (400) est inférieure à un niveau de liquide prédéfini (L1) sur la base d'un changement de la résistance générée entre la paire de bornes d'électrode (421, 422) ; et une partie d'affichage. Quand un temps de détection prédéfini se présente, la partie de commande sert à commander la paire de bornes d'électrode (421, 422) à des fins d'excitation pendant une période de temps prédéfinie, et si des conditions de remplissage sont satisfaites, y compris le niveau de liquide dans la boîte de détergent (400) qui est inférieur au niveau de liquide spécifié (L1), la partie de commande sert ensuite à commander ensuite la partie d'affichage pour indiquer qu'un remplissage de détergent est nécessaire.
PCT/CN2021/090109 2020-07-30 2021-04-27 Machine à laver WO2022021969A1 (fr)

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JP2020129523A JP2022026179A (ja) 2020-07-30 2020-07-30 洗濯機

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