WO2013011605A1 - Drum washing machine - Google Patents

Drum washing machine Download PDF

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Publication number
WO2013011605A1
WO2013011605A1 PCT/JP2012/001754 JP2012001754W WO2013011605A1 WO 2013011605 A1 WO2013011605 A1 WO 2013011605A1 JP 2012001754 W JP2012001754 W JP 2012001754W WO 2013011605 A1 WO2013011605 A1 WO 2013011605A1
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WO
WIPO (PCT)
Prior art keywords
laundry
detection unit
vibration
water
cloth
Prior art date
Application number
PCT/JP2012/001754
Other languages
French (fr)
Japanese (ja)
Inventor
内山　亘
安井　利彦
菊川　智之
脇田　克也
中間　啓人
Original Assignee
パナソニック株式会社
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Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2013011605A1 publication Critical patent/WO2013011605A1/en

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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
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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
    • D06F2103/26—Imbalance; Noise level
    • 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

Definitions

  • the present invention includes a drum-type washing machine or drum that includes a laundry tub that is rotatable and accommodates laundry in an elastically supported water tub, and performs washing, rinsing, dehydration, and drying of the laundry in the laundry tub.
  • the present invention relates to a type washing dryer.
  • the washing tub which puts a laundry
  • the stirring blade rotatably arranged in the inner bottom part of the washing tub
  • the water tub which stores a washing tub freely
  • the water level detection part which detects the water level in a water tub
  • the laundry is stirred for a predetermined time after the water is supplied to a predetermined water level in the laundry dewatering tub in which the laundry is placed. At this time, the decreasing water level is detected, and the fabric quality is detected based on the water level decrease amount.
  • the water absorption capacity of the laundry varies depending on the cloth quality of the laundry, for example, synthetic fiber, cotton, and the like.
  • the laundry is stirred in the supplied laundry dewatering tub, it corresponds to the laundry cloth quality.
  • the amount of water is absorbed by the laundry, and the water level in the laundry dewatering tank decreases accordingly.
  • the cloth quality of the laundry is detected by detecting the amount of change in the lowered water level.
  • the laundry is stuck to the wall of the washing tub when it is stopped.
  • the cloth is called a cloth peeling operation, and the motor is driven, and the washing tub is rotated in one direction for several seconds at a rotation speed at which the laundry can be tumbled and stopped. Thereafter, the washing tub is rotated reversely and stopped.
  • Such a rotation operation is alternately repeated in small increments.
  • the laundry that has been tightly attached to the wall surface of the washing tub is gradually peeled off from the wall surface, so that the laundry is loosened and is easily taken out.
  • Patent Documents As a conventional cloth quality detection part, there is one in which the cloth quality of the laundry in the washing tub is determined from the magnitude of the torque fluctuation of the driving part detected by the torque fluctuation detection part at the time of washing operation (for example, Patent Documents). 3).
  • FIG. 10A is a diagram illustrating a behavior in which a laundry containing a large amount of chemical fiber rotates in a rotating drum in conventional cloth quality detection.
  • FIG. 10B is a diagram illustrating a behavior in which laundry with much cotton rotates in a rotating drum in conventional cloth quality detection.
  • a chemical fiber or the like having low water absorption sticks to the inside of the washing tub, so that torque fluctuation is small.
  • torque fluctuation is small.
  • the cotton having high water absorption has a small torque fluctuation because the laundry does not lift up to the upper part of the washing tub, and thus rotates idle at a low position of the washing tub. Therefore, in both cases, since the torque fluctuation is small, there is a problem that it is difficult to determine the cloth quality.
  • the present invention solves the conventional problem, can detect the fabric quality with less damage to the laundry, and by changing the content of the dehydration process based on the detection result, corresponding to the material constituting the clothing, It provides a washing machine with energy saving and excellent dewatering performance.
  • the present invention determines whether the hygroscopicity of the fibers constituting the clothes put in the washing tub is different, and whether the laundry is stuck to the washing tub at the stage of finishing the final dehydration process based on the determination result. By inferring whether or not, the minimum cloth peeling operation is performed.
  • JP-A-8-173683 Japanese Patent Laid-Open No. 10-127978 JP 2007-185357 A
  • the drum-type washing machine of the present invention contains a laundry, a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a water tub that stores the washing tub
  • a vibration detecting unit that detects vibration of the water tub
  • a driving unit that drives the washing tub
  • a torque fluctuation detecting unit that detects the magnitude of torque fluctuation of the driving unit
  • a cloth quality detection that detects the cloth quality of the laundry
  • a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process.
  • the control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state,
  • a control part changes the time of the spin-drying
  • the drum-type washing machine of the present invention accommodates laundry and a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a washing tub.
  • Water tank vibration detection unit for detecting the vibration of the water tank, drive unit for driving the washing tub, torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit, and cloth for detecting the cloth quality of the laundry
  • a quality detection unit and a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process.
  • the control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state,
  • a control part changes the time of the spin-drying
  • the drum-type washing machine of the present invention accommodates laundry and a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a washing tub.
  • Water tank vibration detection unit for detecting the vibration of the water tank, drive unit for driving the washing tub, torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit, and cloth for detecting the cloth quality of the laundry
  • a quality detection unit and a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process.
  • the control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state,
  • the control unit changes the dehydration rotation time in the dehydration process according to the fabric quality by the cloth quality detection unit, and the control unit performs the stirring operation according to the fabric quality by the fabric quality detection unit after the final dehydration operation in the dehydration process is completed. I do.
  • FIG. 1 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing the configuration of the control device for the drum-type washing machine according to Embodiment 1 of the present invention.
  • FIG. 3A is a diagram showing a correlation between magnitudes of torque fluctuations due to differences in fabric quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated in one direction at 45 rpm.
  • FIG. 3B is a diagram showing a correlation between magnitudes of torque fluctuations due to a difference in cloth quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated at a rotation speed corresponding to the cloth quality. .
  • FIG. 1 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing the configuration of the control device for the drum-
  • FIG. 4 is a diagram showing the correlation of the torque variation according to the cloth quality with respect to the cloth amount of the drum type washing machine in the first embodiment of the present invention.
  • FIG. 5 is a diagram showing the behavior of the laundry in the rotating drum in a general drum-type washing machine.
  • FIG. 6 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention.
  • FIG. 7 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention.
  • FIG. 8 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention.
  • FIG. 9 is a flowchart showing the operation of the drum type washing machine in the second embodiment of the present invention.
  • FIG. 10A is a diagram showing a behavior in which a laundry containing a lot of chemical fibers rotates in a rotating drum in a general drum type washing machine.
  • FIG. 10B is a diagram illustrating a behavior in which laundry with a lot of cotton rotates in a rotating drum in a general drum-type washing machine.
  • Embodiment 1 of the present invention will be described below with reference to the drawings.
  • 1 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 1 of the present invention. The configuration will be described below with reference to FIG.
  • a washing tub 3 is housed in the washing machine body 1 so as to be swingable, and a rotating drum 4 serving as a washing tub is disposed in the tub 3 so as to be rotatable around a rotation shaft 4a.
  • a rotating shaft 4 a of the rotating drum 4 is directly connected to a motor 6 as a driving unit attached to the outside of the back surface of the water tank 3, and the rotating drum 4 is driven to rotate by the motor 6.
  • the rotating drum 4 is provided with a plurality of through holes 4e over the entire peripheral wall 4c so that water can be passed and vented between the water tank 3 and the rotating drum 4.
  • the back wall 4d of the rotating drum 4 is formed with a plurality of back openings 4f along the circumferential direction, and these back openings 4f are arranged so as to oppose the inlet 9e formed at the top on the back side of the water tank 3.
  • a plurality of stirring protrusions 4 b are provided on the inner surface of the peripheral wall 4 c of the rotating drum 4, and the stirring protrusions 4 b can lift the laundry in the rotating drum 4 by the rotation of the rotating drum 4.
  • the through-hole 4e is provided over the entire peripheral wall of the rotary drum 4, it may be partially formed on the peripheral wall of the rotary drum 4.
  • the air permeability between the water tank 3 and the rotary drum 4 and the passage of air are sufficient. What is necessary is just to set so that wateriness can be ensured and it does not interfere with drying from washing.
  • the rotating shaft 4a is in the horizontal direction, the water supplied into the water tank 3 is accumulated on the back side, and a deep water storage state can be obtained even with a small amount of water. That is, it becomes easy for the laundry to hydrate with a small amount of water supply.
  • the water tank 3 is provided along the vicinity thereof with the same inclination as the rotating drum 4 in order to efficiently supply water to the laundry in the rotating drum 4.
  • the rotating drum 4 By inclining the rotating drum 4 and the water tub 3, the water starts to come into contact with the outer peripheral side of the laundry earlier than the horizontal arrangement, so that the laundry is likely to contain water.
  • the rotating drum 4 may be horizontal or the inclination angle ⁇ may be less than 10 degrees.
  • an opening communicating with the inside of the rotating drum 4 through the opening 13 of the water tub 3 is provided on the front side of the washing machine body 1, and an opening / closing door 5 is provided in the opening so as to be freely opened and closed.
  • the opening 13 of the water tank 3 is provided with an annular sealing material 14 at the mouth edge. The front surface side of the sealing material 14 is in contact with the rear surface side of the opening / closing door 5 and is sealed. As a result, hermeticity is maintained.
  • the upper part of the water tank 3 is provided with a detergent storage part 7a, a water supply valve 7b which is a water supply part, and a water supply path 7c.
  • the detergent container 7a is supplied with water by opening and closing the water supply valve 7b.
  • the water supply path 7c supplies the detergent in the detergent container 7a to the space Y formed between the inner surface of the water tank 3 and the outer surface of the rotating drum 4 together with water supply.
  • the bottom of the aquarium 3 has a drain pipe 8a with one end connected to the bottom of the aquarium 3, and a drain valve 8b as a drain.
  • the drain valve 8b When the drain valve 8b is opened and closed, the washing process ends and the rinse process ends.
  • the water in the water tank 3 is drained through the drain pipe 8a when necessary.
  • a drainage filter 8c that can be removed from the outside of the washing machine body 1 is disposed to collect lint contained in the drainage.
  • the drying unit 9 includes a blower 9c, a blower path 9d, an inlet 9e, a lead-out port 9f, a dehumidifying unit 9g, a heating unit 9h, and a filter (not shown).
  • the outlet 9f takes out air from the water tank 3 and the rotating drum 4.
  • the blower 9c sucks air from the outlet 9f.
  • the filter (not shown) collects and removes dusts contained in the air from the outlet 9f.
  • the introduction port 9 e is provided on the back side of the water tank 3 and puts air blown from the blower 9 c into the rotating drum 4.
  • the air passage 9d connects the air blower 9c and the introduction port 9e.
  • the dehumidifying part 9g is arranged in the air blowing path 9d and dehumidifies the high-humidity air from the outlet 9f.
  • the heating unit 9h is arranged on the downstream side of the dehumidifying unit 9g in the air blowing path 9d, and heats the air after dehumidification into high-temperature air.
  • the dehumidifying part 9g and the heating part 9h may be constituted by a heat pump unit, the heating part 9h may be constituted by a heater, and the dehumidifying part 9g may be a water cooling method or an air cooling method.
  • the dehumidifying part 9g and the heating part 9h are configured by a heat pump unit, and the compressor constituting the heat pump unit together with the dehumidifying part 9g and the heating part 9h in the washing machine body 1 (Not shown) shall be provided.
  • the water in the aquarium 3 is circulated by the circulation pump 30 as necessary at the time of the washing process including the water supply and drainage operations, the rinsing process, etc. It is possible to improve the function too much.
  • the circulation pump 30 is fixed on a base plate 2 a that is the bottom of the washing machine body 1, and sucks wash water and sends it to the circulation channel 31. Further, the fed wash water is discharged into the washing tub from the opening 13 of the rotary drum 4 through the circulation water channel 31. More specifically, the discharge side path 31b of the circulation water channel 31 is connected to the injection port 51 provided in the front end wall 3g around the opening 13 of the water tank 3 from the outer surface, and the inner surface of the front end wall 3g of the water tank 3 The cleaning water is jetted between the corresponding outer surfaces of the front end walls 4g of the rotating drum 4 and discharged into the rotating drum 4 through a flow path formed therebetween.
  • the water injection port 51 from the discharge side passage 31b is in a position where it does not come into contact with the laundry in the rotating drum 4, so that the laundry is caught and washed, disturbing the behavior required for rinsing or drying, or It is possible to prevent the laundry from being damaged or torn, and the appearance is not impaired.
  • the rotational speed of the motor of the circulation pump 30 is set to about 3500 rpm, for example.
  • injection port 51 is not limited to the attachment position at the lower part, and may be provided at the upper part as long as it does not come into contact with the laundry in the rotating drum 4. It may be arranged at a plurality of positions.
  • a DC brushless motor capable of controlling the rotation speed is used to circulate the water in the water tank 3 by the circulation pump 30.
  • the vertical angle and the lateral extent of the discharged circulating water can be changed without using a special injection nozzle.
  • the rotation speed of the circulation pump 30 is, for example, about 3500 rpm as described above during normal washing operation, and about 20 L of circulating water per minute is supplied to the laundry in the rotating drum 4. This will improve washing performance and rinsing performance.
  • the control unit 11a constituting the control device 11 reduces the rotational speed of the circulation pump 30 to about 2500 rpm, for example. Circulating water is about 15L / min.
  • the angle in the vertical direction in which the circulating water is discharged is made closer to the horizontal, and the degree of spread in the left-right direction is reduced. Thereby, when there is little laundry, the discharged circulating water is injected to the laundry located in the downward direction in the rotating drum 4, and circulating water is supplied efficiently.
  • the structure which installs the circulation pump 30 on the baseplate 2a which is the bottom part of the washing machine main body 1 it is not limited to this,
  • the water in the water tank 3 is circulated.
  • the structure where the circulation pump 30 is installed in the lower part 3b of the water tank 3 may be sufficient.
  • route 31b is not restricted to one, There may be multiple, and the injection port 51 may be not only from the lower part but from the upper part, and may be plural.
  • the drum-type washing machine is provided with a water level detection unit 10 that detects the amount of water supplied into the rotary drum 4.
  • a water level detection unit 10 that detects the amount of water supplied into the rotary drum 4.
  • an air trap part 10a and a pressure detection part 10c arranged at a predetermined position near the lowest part of the water tank 3 are connected by a hose 10b.
  • the pressure detection unit 10c is composed of a ferrite integrated with a bellows portion that moves by pressure, and a fixed-side coil that surrounds the outer periphery of the pressure detection unit 10c. To do.
  • the water level detection unit 10 is open to the atmosphere and the output is constant when the cleaning water does not come into the air trap unit 10a.
  • the water level detection unit 10 is generally sensing by measuring the air internal pressure by the air trap mechanism, and measuring the time until the air internal pressure changes from the stable atmospheric open pressure affects the variation of the water level sensor. It is an appropriate calculation method that is not subject to
  • the output of the water level detection unit 10 changes depending on the rotation of the rotating drum 4 during the washing operation, such as whether or not the rotating drum 4 is rotating, and the rotation number of the rotating drum 4.
  • the water level can be recognized while the rotating drum 4 is stationary or rotating.
  • the control unit 11a includes a system that can manage all input / output control with a timer, including various sensor outputs such as the water level detection unit 10 as well as instructions for water supply, drainage, and driving of the rotating drum 4. The time required for each operation and timing can be known.
  • the vibration detection unit 16 detects the vibration of the water tank 3.
  • the vibration detection unit 16 includes at least one acceleration sensor (not shown), detects vibration in at least one of the vertical direction, the horizontal direction, and the front-rear direction of the water tank 3, and detects the acceleration in each detected direction. Output the sum of.
  • Embodiment 1 vibration (acceleration) in the vertical direction with respect to the front surface of the rotating drum 4 is detected.
  • the acceleration sensor may be a semiconductor acceleration sensor, a piezoelectric acceleration sensor, or the like, and may be a multi-axis (two-axis or three-axis) acceleration sensor.
  • the actual vibration of the aquarium 3 occupies most of the components in the vertical direction, so the acceleration of clothing falling can be detected with sufficient accuracy in only one direction of the vertical direction. Since there is a rare case where the water tank 3 hits the casing, in the first embodiment of the present invention, a three-axis acceleration sensor is used to add and add the three-axis acceleration components. .
  • FIG. 2 is a block diagram illustrating a configuration of the control device 11 of the drum type washing machine according to the first embodiment of the present invention.
  • the control device 11 includes a microcomputer, and includes a control unit 11a, a cloth quality detection unit 11b that detects the quality of the laundry, and a cloth amount detection unit 11d that detects the amount of the laundry. .
  • the control unit 11a controls the motor 6, the water supply valve 7b, the drain valve 8b, and the like through a power switching unit (not shown) to perform washing, rinsing, and dehydration.
  • the rotation speed calculation unit 11e calculates the rotation speed of the rotary drum 4 from the speed signal output from the hall element 6a as the rotation speed detection unit.
  • the rotation speed of the rotary drum 4 is supplied to the cloth amount detection unit 11d, and the cloth amount is detected based on the detected rotation speed.
  • Cloth amount detection is performed as follows. First, the control unit 11a drives the motor 6 to rotate. The rotational speed of the rotating drum 4 at this time is once raised to a rotational speed at which the laundry is stuck to the inside of the peripheral wall 4c of the rotating drum 4, for example, about 100 to 140 rpm. The controller 11a turns off the motor 6 after maintaining the rotation of the rotary drum 4 for a predetermined time. Then, the motor 6 rotates because the rotating drum 4 rotates due to inertia. At this time, the rotation of the rotating drum 4 gradually decreases due to the friction torque, and the rotating drum 4 eventually stops. The time from the stop of energization to the stop of the rotating drum 4 is long when the amount of laundry is large, and short when the amount of laundry is small. The amount of laundry is detected using the fact that the difference in time required for this stop is proportional to the amount of laundry.
  • the control unit 11a determines the cleaning water level according to the cloth amount detected by the cloth amount detection unit 11d, and opens the water supply valve 7b to supply water to the cleaning water level. Thereafter, the output from the vibration detection unit 16 is input, and the rotational speed of the motor 6 is varied while performing vector control so that the maximum acceleration is applied in a predetermined direction (vertical direction in the present embodiment). To decide. Thereafter, the output from the torque fluctuation calculation unit 11c is input while the determined number of revolutions is kept constant, and the fabric quality of the laundry is determined by the fabric quality detection unit 11b.
  • the torque fluctuation calculation part 11c calculates the output of the motor 6 detected from the motor current detection part 17 which is a torque fluctuation detection part.
  • the q-axis current obtained by vector control is proportional to the torque, so the torque of the motor 6 and the magnitude of torque variation are calculated using the q-axis current.
  • the drum type washing machine in the first embodiment of the present invention automatically controls the motor 6, the water supply valve 7b, the drain valve 8b, and the drying unit 9 according to mode setting and a control program, and at least a washing process, a rinsing process, a dehydrating process, It has a function of performing a drying process.
  • the laundry is first put in from the door 5 and the cloth amount is detected along with the rotation of the rotary drum 4 without being wet.
  • the basic water supply amount is determined from the result of the cloth amount detection at this time.
  • the water supply valve 7b is opened and water supply is started.
  • the detergent in the detergent container 7 a is also put into the water tank 3 using the water supply at this time.
  • the rotating drum 4 repeats the left and right rotations for about 3 minutes to sufficiently absorb the washing water (containing water).
  • the motor 6 operates so that the magnitude of the vibration detected by the vibration detection unit 16 is maximized. That is, the control unit 11a changes the rotational speed of the rotating drum 4 in a range of 40 to 49 rpm so that the maximum acceleration is generated in the vertical direction (vertical direction) when viewed from the front side of the rotating drum 4. Specifically, the rotating drum 4 is rotated at 45 rpm for 20 seconds, and the vibration detector 16 detects an average vertical acceleration for 20 seconds. Next, while rotating the rotating drum 4 for the same time at 46 rpm, the vibration detector 16 similarly detects the acceleration in the vertical direction.
  • the controller 11a searches for the number of rotations of the rotating drum 4 to which an average acceleration is applied in the vertical direction compared to the vertical acceleration during rotation at 45 rpm. Similarly, by changing the drum rotation speed from 47, 48, and 49 rpm to 44 to 40 rpm, the drum rotation speed to which the average acceleration is applied is obtained.
  • FIG. 3A is a diagram showing the correlation between the magnitudes of torque fluctuations due to the difference in fabric quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated in one direction at 45 rpm.
  • FIG. 3B is a diagram showing the correlation of the magnitude of torque fluctuation due to the difference in cloth quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated at the number of rotations according to the cloth quality.
  • the vibration detecting unit 16 determines the rotational speed at which the maximum acceleration is detected, and the rotating drum 4 is rotated at that rotational speed. Facing the bottom, the laundry is knocked down with maximum acceleration.
  • FIG. 3B a result as shown in FIG. 3B is obtained.
  • the garment sticking to the inner side of the peripheral wall 4 c of the rotating drum 4 is reduced by reducing the rotational speed to 43 rpm. That is, it is in a state in which the laundry is struck down with maximum acceleration from the uppermost part to the lowermost part of the rotating drum 4.
  • the minimum condition for rotating the rotary drum 4 is established, and then the cloth quality is determined based on the magnitude of torque fluctuation.
  • the control unit 11a has a rotation speed at which the laundry can be reliably knocked down with the maximum acceleration.
  • the rotating drum 4 is continuously rotated at 43 rpm or the like. At this time, it is finely detected whether the fluctuation (torque fluctuation) of the rotational speed in the short period cycle is large or small, for example, the magnitude of the torque fluctuation in units of 0.1 second is detected.
  • the rotating rotating drum 4 sinks due to the fall of the laundry in the rotating drum 4, thereby causing rotation unevenness (torque fluctuation of the motor 6). For example, if you put about 4kg of cotton clothes, double 8kg of washing water. For this reason, the rotation drum 4 is calculated to have 12 kg of cloth containing washing water.
  • the laundry in the rotating drum 4 depends on how the cloth is biased, a lump of cotton containing approximately 2 kg of water is lifted up to the top of the rotating drum 4 and dropped down toward the bottom of the rotating drum 4 Therefore, the rotating drum 4 easily sinks and uneven rotation occurs.
  • the magnitude of the rotation unevenness is ⁇ 2 rpm for chemical fibers and ⁇ 5 rpm for cotton, and the numerical difference itself is small. This is because even if rotation unevenness occurs by using vector control having high-speed response as the control method of the motor 6, it is difficult to cause rotation unevenness by rapidly increasing and decreasing the motor current.
  • the control device 11 Since the influence on the torque fluctuation is large as much as the difference in rotation unevenness is small, the control device 11 according to the first embodiment of the present invention can easily distinguish the difference in the fabric quality by referring to the torque fluctuation (the q-axis current of the motor current). .
  • the torque fluctuation the q-axis current of the motor current.
  • the variation in the rotation speed becomes larger, so that the cloth quality can be determined based on the magnitude of the rotation unevenness.
  • the torque fluctuation is detected at the timing when the motor 6 starts operating, that is, for 5 seconds after the rotation of the rotary drum 4, the laundry in the drum is not stable, so that the torque fluctuation is not detected and the torque fluctuation is detected after 5 seconds. Start detecting. It is better to detect the fluctuation as long as possible until the rotating drum 4 is stopped.
  • FIG. 4 is a diagram showing the correlation of the torque variation according to the cloth quality with respect to the cloth amount of the drum type washing machine in the first embodiment of the present invention.
  • the difference between the maximum value and the minimum value of the torque fluctuation of the rotary drum 4 is replaced with a numerical value that is easy to calculate (for example, a numerical value in units of a maximum of 400 bits) by the torque fluctuation calculation section 11c, and the cloth quality detection section 11b.
  • the fabric quality is determined by comparing the first predetermined value A and the second predetermined value B, which are threshold values, with the ratio of fibers having high water absorption and fibers having low water absorption. .
  • laundry capacity generally, it is said that the capacity of laundry that an adult changes and wash in one day is 1.5 kg.
  • the range of the most practical washing capacity up to 3 families washing every day) can determine the fabric quality without depending on the amount of fabric.
  • a capacity of 1 kg or less or a capacity exceeding 6 kg it is necessary to change the cloth quality judgment threshold value according to the cloth quantity obtained as a result of the cloth quantity judgment (the cloth quality detection threshold value based on the cloth quantity). Correction).
  • the vibration detection unit 16 When the laundry is less than 1 kg, it is difficult to detect the difference in the cloth quality by the vibration detection unit 16 because it is relatively light even if it contains washing water. When the laundry exceeds 6 kg, the rotary drum 4 is almost filled with the laundry, and it is difficult to drop the rotary drum 4 from the upper part to the lower part. For this reason, it is difficult to detect a difference in fabric quality by the vibration detection unit 16. Therefore, the maximum torque fluctuation range, which is the difference between the maximum value and the minimum value of torque fluctuation, becomes small. Therefore, the fabric quality can be determined according to the amount of fabric by lowering the threshold value for determining the level of water absorption.
  • the drum-type washing machine in the present embodiment accommodates laundry, and a washing tub that is rotatable around a horizontal rotation axis or a rotation axis that is inclined downward from the front side toward the back side; Water tank for storing the washing tub, vibration detection unit for detecting vibration of the water tub, driving unit for driving the washing tub, torque fluctuation detecting unit for detecting the magnitude of torque fluctuation of the driving unit, and the quality of the laundry And a control unit that controls each process such as washing, rinsing, and dehydration by driving the drive unit, etc., and the control unit has the maximum magnitude of vibration detected by the vibration detection unit. Then, the drive unit is operated so that the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of the torque fluctuation in a state where the magnitude of the vibration is maximized.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
  • the drum type washing machine in the present embodiment includes a water supply unit that supplies water to the washing tub or the water tub, and a rotation speed detection unit that detects the rotation speed of the drive unit.
  • the control unit operates the water supply unit to supply water to the laundry so that the laundry contains water, and the drive unit is operated at a rotation speed that maximizes the magnitude of vibration detected by the vibration detection unit.
  • the cloth quality of the laundry is detected from the magnitude of the torque fluctuation in the number.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
  • control unit performs a process of rotating the washing tub at a predetermined rotation speed for a predetermined time after the start of water supply, and changes the predetermined rotation speed to detect vibration detected by the vibration detection unit. This determines the number of rotations at which the size of is the maximum.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
  • the cloth quality detection unit is configured such that the magnitude of the torque fluctuation at the rotational speed at which the magnitude of the vibration detected by the vibration detection part is the maximum is larger than the predetermined torque fluctuation.
  • the laundry is judged to have a high proportion of highly water-absorbing fibers.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub).
  • the cloth quality detection unit determines the cloth quality based on the magnitude of the torque fluctuation after the elapse of a predetermined time from the start of the operation of the driving unit.
  • the torque fluctuation detection is canceled in a section where the torque value is not stable immediately after the operation of the drive unit is started, and the cloth quality is determined based on the torque fluctuation in a state where the torque value is stable after a predetermined time has elapsed. It is possible to improve the accuracy of the cloth quality determination.
  • the vibration detection unit has at least one acceleration sensor, and detects vibration in at least one of the vertical direction, the horizontal direction, and the front-rear direction of the water tank, The sum of accelerations in each detected direction is output.
  • the drive unit is adjusted so that the magnitude of vibration detected by the vibration detection unit is always maximized by the high-speed response of the acceleration sensor. be able to. As a result, the laundry can always be struck down with the maximum acceleration from the top to the bottom of the rotating washing tub.
  • the drum type washing machine in the present embodiment is configured such that the control unit performs vector control of the drive unit, and the torque fluctuation detection unit is based on the q-axis current when the control unit performs vector control of the drive unit.
  • the magnitude of torque fluctuation is detected.
  • the drive unit is configured to be rotationally controlled by vector control, and is configured to detect the magnitude of torque variation of the drive unit based on the q-axis current obtained in vector control. Detection accuracy can be further improved, and the accuracy of the cloth quality determination can be further improved.
  • the drum-type washing machine in the present embodiment includes a cloth amount detection unit that detects the amount of laundry in the washing tub, and the control unit is a torque that determines the cloth quality based on a signal from the cloth amount detection unit.
  • the threshold value of the magnitude of fluctuation is corrected.
  • the drain valve 8b is opened, and the wash water in the water tank 3 passes through the drain pipe 8a and the drain filter 8c and is drained outside the apparatus. Thereafter, the rinsing process and the dehydrating process are performed, and the washing operation is completed.
  • the controller 11a when the control unit 11a determines that the ratio of the laundry cloth having a high water absorption property is large, the controller 11a increases the dehydration time in the rinsing process and the dehydration process in accordance with the high water absorption cloth. Change to Specifically, the dehydration time in the rinsing process and the dehydration process is increased by, for example, 30 seconds to ensure sufficient dewatering performance.
  • the control unit 11a determines that the ratio of the cloth quality of the laundry composed of fibers having low water absorption is large, the direction of reducing the dehydration time in the rinsing process and the dehydration process according to the cloth quality having low water absorption. Change to Specifically, the dehydration time in the rinsing process and the dehydration process is set to a value that does not affect the dewatering performance, for example, 30 seconds.
  • the rotating drum 4 that is the washing tub is rotated by the motor 6 as the driving unit (S1), and the rotation number of the rotating drum 4 is adjusted to the motor. 6 (S2).
  • the vibration detector 16 detects the vibration of the water tank 3 accompanying the rotation of the rotating drum 4 and determines whether or not the vibration is maximum (S3). If it is determined that the vibration is not maximum, the motor 6 is controlled. The rotational speed of the rotating drum 4 is changed.
  • the control unit 11a detects the magnitude of the torque at that time by the motor current detection unit 17.
  • the torque fluctuation calculation unit 11c determines that the torque fluctuation range (torque fluctuation magnitude) is larger than the first predetermined value A (YES in S4), the dehydration time in the rinsing process and / or the dehydration process is, for example, 30 seconds. Increase to ensure sufficient dewatering performance (S5).
  • the dehydration time in the rinsing step and / or dehydration step is set to a value that does not affect the dewatering performance, for example, 30 seconds (S7).
  • the torque fluctuation calculation unit 11c determines that the torque fluctuation width is smaller than the first predetermined value A and smaller than the second predetermined value B (NO in S6), the setting of the rinsing process and / or the dehydrating process is performed. The content is left as it is, and the dehydration time is not changed (S8).
  • the drain valve 8b is operated to drain the water in the water tank 3 (S10). Subsequently, dehydration is performed to remove washing water and dirt from the laundry (S11).
  • Cloth with high water absorption like jeans and trainers, is hard when it contains water, and the washing water that has penetrated into and between the fibers cannot be shaken unless the water is powerfully stirred with a large amount of water. Therefore, the dewatering performance is improved by changing the direction to increase the time of the dewatering rotation.
  • the dehydration process is started. Water in the water tank 3 is drained (S20), and the rotating drum 4 is rotated to perform dehydration (S21).
  • the dehydration time in the dehydration process set at the time of cloth quality detection ends YES in S22
  • the dehydration process ends.
  • variation range by the amount of the laundry used for determining predetermined value A and B is 3 of cotton, a chemical fiber, and the mixture of cotton and a chemical fiber.
  • the set water level is determined according to the type of water absorption characteristics, but this is not restrictive.
  • the mixing ratio is changed to 1: 2, 1: 1, 2: 1. For example, you may rank more finely. Thereby, it is possible to detect in detail whether the laundry is composed of fibers having high water absorption or is composed of fibers having low water absorption, that is, an approximate ratio.
  • Each configuration described in this embodiment cooperates with hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like.
  • a CPU or microcomputer
  • RAM random access memory
  • ROM read-only memory
  • storage / recording device an electrical / information device including an I / O
  • computer a computer
  • server a server
  • new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media, or distributing them using a communication line such as the Internet.
  • control unit that sequentially controls the washing process, the rinsing process, and the dehydration process changes the dehydration rotation time in the dehydration process according to the fabric quality by the fabric quality detection unit.
  • the controller that sequentially controls the washing process, the rinsing process, and the dewatering process changes the time of the dehydration rotation in the rinsing process according to the cloth quality by the cloth quality detection unit. It is.
  • the drum type washing machine in the present embodiment includes a water supply unit that supplies water to the washing tub or the water tub, and a rotation number detection unit that detects the rotation number of the drive unit, and the control unit operates the water supply unit to supply water. Then, the laundry contains water and the drive unit is operated at a rotation speed at which the magnitude of vibration detected by the vibration detection unit is maximized. The cloth quality is detected.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub).
  • control unit performs a process of rotating the washing tub at a predetermined rotation speed for a predetermined time after the start of water supply, and changes the predetermined rotation speed to detect vibration detected by the vibration detection unit. This determines the number of rotations at which the size of is the maximum.
  • the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality.
  • the drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub).
  • the drum type washing machine in the present embodiment determines the ratio of fibers having high water absorption and fibers having low water absorption as materials constituting the laundry.
  • the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”.
  • Such a determination can be made appropriately, and the rinse effect can be maximized by setting the rinse contents according to the fabric characteristics.
  • the cloth quality detection unit detects that the laundry in the washing tub is composed of fibers with low water absorption
  • the dewatering rotation increases as the ratio increases. It shortens the time of time.
  • the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”.
  • the time during dehydration rotation can be adjusted. For this reason, since the dehydration time according to the cloth characteristic can be set, the dehydration operation with improved energy saving can be performed while maintaining the dewatering performance within a specific time.
  • drum-type washing machine is the same as the first embodiment of the present invention, the method for detecting the cloth quality, the components for performing the cloth quality detection, and the washing process are the same. Description is omitted.
  • the control unit 11a of the drum type washing machine in the second embodiment of the present invention performs a stirring operation according to the fabric quality by the fabric quality detection unit 11b after the final dehydration operation in the dehydration process is completed. More specifically, when the control unit 11a determines that the ratio of the cloth quality of the laundry from low water absorption is large, the stirring performed for the purpose of peeling the laundry stuck to the inner peripheral wall of the drum after the final dehydration is completed. Change the direction to reduce the set time for operation (cloth peeling and stirring). Moreover, in the stirring operation including normal rotation and reversal of the rotating drum 4, the number of reversals is changed in a direction of decreasing according to the cloth quality.
  • the rotating drum 4 that is a washing tub is rotated by the motor 6 as the drive unit (S1), and the rotational speed of the rotating drum 4 is adjusted to the motor. 6 (S2).
  • the vibration detector 16 detects the vibration of the water tank 3 accompanying the rotation of the rotating drum 4 and determines whether or not the vibration is maximum (S3). If it is determined that the vibration is not maximum, the motor 6 is controlled. The rotational speed of the rotating drum 4 is changed.
  • the cloth peeling and stirring operation time is slightly reduced (S7).
  • the reduction time at this time is, for example, about 30 seconds.
  • the number of rotations of the rotating drum 4 is reduced to half of the set number.
  • the torque fluctuation calculation unit 11c determines that the torque fluctuation width is smaller than the first predetermined value and smaller than the second predetermined value B (NO in S6), the ratio composed of fibers with low water absorption Is determined to be large, and setting is made so that the cloth is not peeled off and stirred (S8).
  • the controller 11a finishes the washing process (S9), passes through the rinsing process (S10), finishes the dehydrating operation in the dehydrating process (S11), and stops the rotating drum 4. Thereafter, if the cloth peeling process is set (YES in S12), the cloth peeling process is performed (S13). In the cloth peeling process, for example, an operation of repeating a cycle of “5 seconds right rotation, 1 second stop, 5 seconds left rotation, 1 second stop” for a set time is performed (S14). On the other hand, if there are many laundry with low water absorption and the cloth peeling process is not set (NO of S12), a washing operation will be complete
  • the rank of the set water level is determined by three types of water absorption characteristics of cotton, chemical fiber, and a mixture of cotton and chemical fiber.
  • the present invention is not limited to this.
  • Other fibers such as nylon may also be used as the fiber to refine the ranking.
  • the mixing ratio may be changed to 1: 2, 1: 1, 2: 1, or the like, and the ranks may be more finely classified.
  • the amount of water according to the weight of the laundry is injected in the washing process, and is further introduced in the water injection process. It can be determined whether there are many items of laundry that are made of a material with high water absorption or many items of material that have a low water absorption. According to the cloth quality detection result, it is inferred whether the laundry is stuck to the washing tub at the stage where the final dehydration is finished, and the contents of the cloth peeling operation are changed. As a result, it is possible to perform a minimum cloth peeling operation depending on the characteristics of whatever the quality of the fabric, so that the laundry after final dehydration is easily tangled and taken out easily. It is possible to make a state.
  • Each configuration described in this embodiment cooperates with hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like.
  • a CPU or microcomputer
  • RAM random access memory
  • ROM read-only memory
  • storage / recording device an electrical / information device including an I / O
  • computer a computer
  • server a server
  • new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media, or distributing them using a communication line such as the Internet.
  • control unit that sequentially controls the steps of the washing process, the rinsing process, and the dehydration process is performed according to the cloth quality by the cloth quality detection unit after the final dehydration operation in the dehydration process is completed.
  • a stirring operation is performed.
  • the minimum cloth peeling operation can be performed according to the characteristics. Therefore, after the final dehydration is finished, the laundry is untangled, and the user can easily take out the laundry. Furthermore, since unnecessary cloth peeling operation is not required, it is possible to reduce the damage of the laundry. Furthermore, since it does not continue stirring the wet laundry in the loosened state, it is possible to reduce the occurrence of wrinkles due to the tangling of the laundry. Furthermore, since unnecessary cloth peeling operation is not performed, the operation
  • the cloth quality detection unit determines a ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry.
  • the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”.
  • Such a determination can be appropriately made, and the contents of the cloth peeling process according to the cloth quality characteristics can be set. Therefore, since the maximum cloth peeling effect can be achieved by performing the minimum cloth peeling operation, it is possible to realize an operation with excellent energy saving performance.
  • the control unit detects that the ratio of the laundry composed of fibers having low water absorption is large by the cloth quality detection unit, the final dehydration operation increases as the ratio increases. The time for performing the stirring operation after completion is shortened.
  • the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”.
  • the time for the water-less stirring operation which is the cloth peeling operation, can be adjusted. Therefore, it is possible to set the time of the cloth peeling process according to the cloth quality characteristics, and it is possible to obtain the maximum cloth peeling effect by performing the minimum cloth peeling operation.
  • the stirring operation after the final dehydration operation includes forward rotation and inversion
  • the control unit is configured by the fabric quality detection unit so that the laundry is made of fibers having low water absorption.
  • the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”.
  • the number of inversions of the waterless stirring operation which is a cloth peeling operation, can be adjusted. Therefore, by setting the number of times of reversal of the cloth peeling process according to the cloth quality characteristics, it is possible to reduce fabric damage due to the reversing operation.
  • control unit performs the stirring after the final dehydration operation is completed when the ratio of the laundry composed of fibers having low water absorption by the cloth quality detection unit exceeds a predetermined rate. The operation is not performed.
  • the washing machine detects the cloth quality of the laundry, it automatically detects not only the home washing machine but also a washing apparatus for textiles, a commercial washing machine mainly for washing water, and the cloth quality. It can also be applied to controlled equipment.

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

Abstract

A drum washing machine is provided with a water tank for housing a washing tub that is tilted downward towards the rear surface side, a vibration detection unit (16) for detecting the vibration of the water tank, a torque variation detection unit for detecting the magnitude of the torque variation of a drive unit for driving the washing tub, and a control unit (11a) for controlling steps such as the washing step, rinsing step, and draining step. The drive unit is operated such that the magnitude of the vibration detected by means of the vibration detection unit (16) reaches the maximum. Then the control unit (11a) modifies the draining rotation time during the rinsing step and/or the draining step in accordance with the fabric quality detected by means of a fabric quality detection unit (11b) which detects the fabric quality of the laundry from the magnitude of the torque variation while the drive unit is operated as mentioned above.

Description

ドラム式洗濯機Drum washing machine
　本発明は、弾性的に支持された水槽内に洗濯物を収容して回転可能な洗濯槽を備え、その洗濯槽内で洗濯物の洗い、すすぎ、脱水及び乾燥を行うドラム式洗濯機もしくはドラム式洗濯乾燥機に関する。 The present invention includes a drum-type washing machine or drum that includes a laundry tub that is rotatable and accommodates laundry in an elastically supported water tub, and performs washing, rinsing, dehydration, and drying of the laundry in the laundry tub. The present invention relates to a type washing dryer.
　一般的に、綿と化学繊維を比較した場合、洗濯液に対する吸水能力や保水性、水へのなじみ等、衣類の特性が大きく異なるため、洗濯、つまり洗い、すすぎ、脱水を行う場合、画一的に同じ工程にする必要はなくなる。そこでこれら洗濯物が綿であるか、たとえばポリエステル主体の化学繊維であるかなど布質が判別できれば、布質をもとに運転シーケンスに反映して最適な運転を行うことで、洗い上がりの向上、節水や時短の実現が可能となる。 In general, when cotton and chemical fiber are compared, the characteristics of clothing such as water absorption capacity, water retention, water compatibility, etc. for washing liquids are greatly different, so when washing, washing, rinsing, dehydrating, etc. Therefore, it is not necessary to use the same process. Therefore, if it is possible to determine whether the laundry is cotton, for example, whether it is a polyester-based chemical fiber, the washing operation is improved by reflecting the operation sequence based on the fabric quality. , Saving water and saving time.
　従来の布質検知部として、洗い工程の給水後の水位低下量の違いから洗濯物の吸水能力を見て布質を検知するものがあった（例えば、特許文献１参照）。 As a conventional cloth quality detection unit, there is one that detects the fabric quality by looking at the water absorption capacity of the laundry from the difference in the water level drop after the water supply in the washing process (for example, see Patent Document 1).
　特許文献１では、洗濯物を入れる洗濯槽と、洗濯槽の内底部に回転自在に配した撹拌翼と、洗濯槽を回転自在に収納する水槽と、水槽内の水位を検知する水位検知部を備え、洗濯物が入れられた洗濯脱水槽内の所定水位にまで水が供給された後、洗濯物が所定時間撹拌される。このとき、低下する水位を検出し水位低下量に基づいて布質を検知する。 In patent document 1, the washing tub which puts a laundry, the stirring blade rotatably arranged in the inner bottom part of the washing tub, the water tub which stores a washing tub freely, and the water level detection part which detects the water level in a water tub The laundry is stirred for a predetermined time after the water is supplied to a predetermined water level in the laundry dewatering tub in which the laundry is placed. At this time, the decreasing water level is detected, and the fabric quality is detected based on the water level decrease amount.
　このような構成によって、洗濯物の布質、例えば化繊、木綿等によって、洗濯物の吸水能力が異なるので、給水された洗濯脱水槽内で洗濯物を撹拌すると、洗濯物の布質に応じた水量が、洗濯物に吸水されて、洗濯脱水槽内の水位がその分低下する。この低下した水位の変化量を検出することによって、洗濯物の布質を検知している。 With such a configuration, the water absorption capacity of the laundry varies depending on the cloth quality of the laundry, for example, synthetic fiber, cotton, and the like. When the laundry is stirred in the supplied laundry dewatering tub, it corresponds to the laundry cloth quality. The amount of water is absorbed by the laundry, and the water level in the laundry dewatering tank decreases accordingly. The cloth quality of the laundry is detected by detecting the amount of change in the lowered water level.
　しかしながら、従来の布質検知方法では、布質検知をするために所定水量の給水後、一定時間撹拌をして洗濯物に吸水させる必要がある。このときの水位は洗濯物に吸水されるため低水位となり、低水位で撹拌することで洗濯物がこすれ、傷みが生じるという課題を有していた。 However, in the conventional cloth quality detection method, it is necessary to stir for a certain period of time after water supply of a predetermined amount of water to allow the laundry to absorb water in order to detect the cloth quality. Since the water level at this time is absorbed by the laundry, the water level becomes low, and there is a problem that the laundry is rubbed and damaged by stirring at the low water level.
　また、従来のドラム式の洗濯機においては、洗濯物を回転自在に設置された洗濯槽に投入した後、給水部によって洗濯機外部より水道水が供給され、あらかじめ既定量の洗剤が投入されている洗剤入れを介して洗濯槽を収容する水槽または洗濯槽に注水される。注水後は、洗濯槽を低速で回転させながら、洗濯物を十分に洗浄水で濡らした後、洗濯槽を一定時間、洗濯物が洗濯槽壁面に張り付かない程度の低速で回転させる。これによって、タンブリングと呼ばれる動作が行われる。タンブリングすることにより、濡れた洗濯物が回転に伴って洗濯槽の上部より落下して、その際の衝撃によって汚れが落とされて、洗浄性能が上げられている。 In the conventional drum type washing machine, after the laundry is put into a washing tub installed rotatably, tap water is supplied from the outside of the washing machine by a water supply unit, and a predetermined amount of detergent is put in advance. Water is poured into a water tub or laundry tub containing the laundry tub through a detergent container. After pouring water, the laundry tub is rotated at a low speed and the laundry is sufficiently wetted with washing water, and then the laundry tub is rotated at a low speed so that the laundry does not stick to the wall surface of the laundry tub for a certain period of time. As a result, an operation called tumbling is performed. By tumbling, the wet laundry falls from the upper part of the washing tub as it rotates, and the dirt is removed by the impact at that time, so that the washing performance is improved.
　一方、洗い行程を終えて、すすぎ行程に移行すると、短時間の中間脱水が行われた後に、再び注水が行われ、撹拌動作（タンブリング動作）により洗濯物のすすぎが行われる。その後、脱水行程に移行し、洗濯槽内のすすぎ水が排水された後に、最終の脱水動作が行われる。脱水動作は洗濯物に極めて強い遠心力をかけることで繊維の奥に染み込んだ水分までも遠心方向に吹き飛ばすものであるので、最終脱水を終了した段階では洗濯物が洗濯槽壁面にきつく張り付いている。ここで運転が終了して使用者が洗濯物を洗濯槽から取り出そうとすると、洗濯槽壁面に張り付いた洗濯物を引きはがす必要があり、予想以上に重労働である。 On the other hand, when the washing process is completed and the process proceeds to the rinsing process, after a short period of intermediate dehydration, water is injected again, and the laundry is rinsed by a stirring operation (tumbling operation). Thereafter, the process proceeds to a dehydration process, and after the rinse water in the washing tub is drained, the final dehydration operation is performed. The dehydration operation blows away the moisture soaked into the back of the fiber by applying an extremely strong centrifugal force to the laundry. Yes. Here, when the operation is finished and the user tries to take out the laundry from the washing tub, it is necessary to tear off the laundry stuck to the wall surface of the washing tub, which is more labor than expected.
　これに対して、近年では最終脱水を終えた後に洗濯槽壁面にきつく張り付いた洗濯物を壁面から少しでも引きはがすことにより、使用者が洗濯物を取り出す手間を軽減する機能を搭載した洗濯機が提案されている（例えば、特許文献２参照）。 On the other hand, in recent years, a washing machine equipped with a function to reduce the user's trouble of taking out the laundry by peeling the laundry tightly attached to the wall of the washing tub after the final dehydration. Has been proposed (see, for example, Patent Document 2).
　最終脱水動作終了後、洗濯槽を停止させた段階では、洗濯物が洗濯槽の壁面にきつく張り付いている。この状態で、給水を行わずに、布はがし動作と称して、モータを駆動させ、洗濯衣類をタンブリング可能な回転数で洗濯槽を数秒だけ片方向に回転させて停止させる。その後、洗濯槽を逆回転させて停止させる。このような回転動作を交互に小刻みに繰り返す。これにより、洗濯槽壁面にきつく張り付いていた洗濯物が、壁面から徐々に剥がれて洗濯物がほぐれて取り出しやすい状態になる。 After the final dehydration operation, the laundry is stuck to the wall of the washing tub when it is stopped. In this state, without supplying water, the cloth is called a cloth peeling operation, and the motor is driven, and the washing tub is rotated in one direction for several seconds at a rotation speed at which the laundry can be tumbled and stopped. Thereafter, the washing tub is rotated reversely and stopped. Such a rotation operation is alternately repeated in small increments. As a result, the laundry that has been tightly attached to the wall surface of the washing tub is gradually peeled off from the wall surface, so that the laundry is loosened and is easily taken out.
　しかしながら、最終脱水を終えた段階で、洗濯物の種類によっては、例えばジャージなどの化学繊維が多い場合は、最終脱水行程を終えた段階でも洗濯槽に洗濯物が貼りついていない。それにも関わらず、布はがし動作が行われることで運転時間をいたずらに伸ばし、省エネルギー性が良くないという課題を有していた。 However, at the stage where the final dehydration is completed, depending on the type of laundry, for example, when there are many chemical fibers such as jersey, the laundry is not stuck to the washing tub even after the final dehydration process. In spite of this, the cloth peeling operation has undesirably increased the operating time, resulting in poor energy savings.
　また、一般的に、綿と化学繊維を比較した場合、洗浄水に対する吸水能力や保水性、水へのなじみ等、衣類の特性が大きく異なるため、洗濯、つまり洗い、すすぎ、脱水を行う場合、画一的に同じ工程を行う必要はなくなる。そこで、これら洗濯物が綿であるか、たとえばポリエステル主体の化学繊維であるかなどの布質が判別できれば、布質をもとに運転シーケンスに反映して最適な運転を行うことで、洗い上がりの向上、節水や時短の実現が可能となる。 In general, when cotton and chemical fiber are compared, the water absorption capacity and water retention capacity for washing water, and the characteristics of clothing, such as familiarity with water, are greatly different, so when washing, that is, washing, rinsing, dehydrating, There is no need to perform the same process uniformly. Therefore, if it is possible to determine whether the laundry is cotton, for example, whether it is a polyester-based chemical fiber, washing is performed by reflecting the operation sequence on the basis of the fabric quality and performing the optimum operation. Improvement, water saving and reduction of time.
　従来の布質検知部として、洗濯運転時におけるトルク変動検知部により検知された駆動部のトルク変動の大きさから洗濯槽内の洗濯物の布質が判定されるものがある（例えば、特許文献３参照）。 As a conventional cloth quality detection part, there is one in which the cloth quality of the laundry in the washing tub is determined from the magnitude of the torque fluctuation of the driving part detected by the torque fluctuation detection part at the time of washing operation (for example, Patent Documents). 3).
　しかしながら、従来構成のものでは、布質の違いで回転ムラ（駆動部のトルク変動）を発生させる条件として、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことが必要である。図１０Ａは従来の布質検知における化学繊維の多い洗濯物が回転ドラム内で回転する挙動を示す図である。図１０Ｂは従来の布質検知における綿の多い洗濯物が回転ドラム内で回転する挙動を示す図である。図１０Ａに示すように、吸水性の低い化学繊維などは、洗濯槽内側に張りつくため、トルク変動が小さい。このように、化学繊維を検知する場合は吸水性が低いために、トルク変動が小さい。 However, in the case of the conventional configuration, as a condition for generating uneven rotation (torque fluctuation of the drive unit) due to the difference in the cloth quality, the maximum amount of laundry is directed from the top of the rotating washing tub to the bottom (washing tub bottom). It is necessary to knock it down with acceleration. FIG. 10A is a diagram illustrating a behavior in which a laundry containing a large amount of chemical fiber rotates in a rotating drum in conventional cloth quality detection. FIG. 10B is a diagram illustrating a behavior in which laundry with much cotton rotates in a rotating drum in conventional cloth quality detection. As shown in FIG. 10A, a chemical fiber or the like having low water absorption sticks to the inside of the washing tub, so that torque fluctuation is small. Thus, when detecting a chemical fiber, since water absorption is low, torque fluctuation is small.
　一方で、図１０Ｂに示すように、吸水性が高い綿は、洗濯槽の上部まで洗濯物が持ち上がらないため、洗濯槽の低い位置で空回りするため、トルク変動が小さい。よって、どちらの場合も、トルク変動が小さいため、布質を判定しにくいという課題を有していた。 On the other hand, as shown in FIG. 10B, the cotton having high water absorption has a small torque fluctuation because the laundry does not lift up to the upper part of the washing tub, and thus rotates idle at a low position of the washing tub. Therefore, in both cases, since the torque fluctuation is small, there is a problem that it is difficult to determine the cloth quality.
　本発明は、従来の課題を解決するもので、洗濯物の傷みを少なく布質を検知でき、検知結果に基づいて脱水工程の内容を変化させることによって、衣類を構成する素材に対応して、省エネルギーで脱水性能に優れた洗濯機を提供するものである。 The present invention solves the conventional problem, can detect the fabric quality with less damage to the laundry, and by changing the content of the dehydration process based on the detection result, corresponding to the material constituting the clothing, It provides a washing machine with energy saving and excellent dewatering performance.
　また、本発明は、洗濯槽内に投入された衣類を構成する繊維の吸湿性の違いを判定し、判定結果に基づいて最終脱水行程を終えた段階での洗濯槽に洗濯物が貼りついているか否かを推察することによって、最低限の布はがし動作を行う。これで、洗濯物を取り出しやすく、省エネルギー性の優れた運転を実現することができるドラム式洗濯機を提供するものである。 Further, the present invention determines whether the hygroscopicity of the fibers constituting the clothes put in the washing tub is different, and whether the laundry is stuck to the washing tub at the stage of finishing the final dehydration process based on the determination result. By inferring whether or not, the minimum cloth peeling operation is performed. Thus, it is an object of the present invention to provide a drum type washing machine that can easily take out the laundry and can realize an operation with excellent energy saving.
特開平８－１７３６８３号公報JP-A-8-173683 特開平１０－１２７９７８号公報Japanese Patent Laid-Open No. 10-127978 特開２００７－１８５３５７号公報JP 2007-185357 A
　本発明のドラム式洗濯機は、洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、洗濯槽を収容する水槽と、水槽の振動を検知する振動検知部と、洗濯槽を駆動する駆動部と、駆動部のトルク変動の大きさを検知するトルク変動検知部と、洗濯物の布質を検知する布質検知部と、駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備える。制御部は、振動検知部により検知する振動の大きさが最大となるよう駆動部を動作させ、布質検知部は、この状態でのトルク変動の大きさから洗濯物の布質を判断し、制御部は、布質検知部による布質に応じて脱水工程における脱水回転の時間を変更する。 The drum-type washing machine of the present invention contains a laundry, a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a water tub that stores the washing tub A vibration detecting unit that detects vibration of the water tub, a driving unit that drives the washing tub, a torque fluctuation detecting unit that detects the magnitude of torque fluctuation of the driving unit, and a cloth quality detection that detects the cloth quality of the laundry And a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process. The control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state, A control part changes the time of the spin-drying | dehydration rotation in a spin-drying | dehydration process according to the cloth quality by a cloth quality detection part.
　また、本発明のドラム式洗濯機は、洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、洗濯槽を収容する水槽と、水槽の振動を検知する振動検知部と、洗濯槽を駆動する駆動部と、駆動部のトルク変動の大きさを検知するトルク変動検知部と、洗濯物の布質を検知する布質検知部と、駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備える。制御部は、振動検知部により検知する振動の大きさが最大となるよう駆動部を動作させ、布質検知部は、この状態でのトルク変動の大きさから洗濯物の布質を判断し、制御部は、布質検知部による布質に応じてすすぎ工程における脱水回転の時間を変更する。 The drum-type washing machine of the present invention accommodates laundry and a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a washing tub. Water tank, vibration detection unit for detecting the vibration of the water tank, drive unit for driving the washing tub, torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit, and cloth for detecting the cloth quality of the laundry A quality detection unit, and a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process. The control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state, A control part changes the time of the spin-drying | dehydration rotation in a rinse process according to the cloth quality by a cloth quality detection part.
　また、本発明のドラム式洗濯機は、洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、洗濯槽を収容する水槽と、水槽の振動を検知する振動検知部と、洗濯槽を駆動する駆動部と、駆動部のトルク変動の大きさを検知するトルク変動検知部と、洗濯物の布質を検知する布質検知部と、駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備える。制御部は、振動検知部により検知する振動の大きさが最大となるよう駆動部を動作させ、布質検知部は、この状態でのトルク変動の大きさから洗濯物の布質を判断し、制御部は、布質検知部による布質に応じて脱水工程における脱水回転の時間を変更し、制御部は脱水工程における最終脱水動作の終了後に、布質検知部による布質に応じた撹拌動作を行う。 The drum-type washing machine of the present invention accommodates laundry and a washing tub that is rotatable about a horizontal rotation shaft or a rotation shaft that is inclined downward from the front side toward the back side, and a washing tub. Water tank, vibration detection unit for detecting the vibration of the water tank, drive unit for driving the washing tub, torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit, and cloth for detecting the cloth quality of the laundry A quality detection unit, and a control unit that drives the drive unit and the like to control each process such as a washing process, a rinsing process, and a dehydrating process. The control unit operates the drive unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of torque fluctuation in this state, The control unit changes the dehydration rotation time in the dehydration process according to the fabric quality by the cloth quality detection unit, and the control unit performs the stirring operation according to the fabric quality by the fabric quality detection unit after the final dehydration operation in the dehydration process is completed. I do.
図１は、本発明の実施の形態１におけるドラム式洗濯機の概略構造を示す断面図である。1 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 1 of the present invention. 図２は、本発明の実施の形態１におけるドラム式洗濯機の制御装置の構成を示すブロック図である。FIG. 2 is a block diagram showing the configuration of the control device for the drum-type washing machine according to Embodiment 1 of the present invention. 図３Ａは、本発明の実施の形態１におけるドラム式洗濯機の回転ドラムを４５ｒｐｍで一方向に回転させたときの布質の違いによるトルク変動の大きさの相関を示す図である。FIG. 3A is a diagram showing a correlation between magnitudes of torque fluctuations due to differences in fabric quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated in one direction at 45 rpm. 図３Ｂは、本発明の実施の形態１におけるドラム式洗濯機の回転ドラムを布質に応じた回転数で回転させたときの布質の違いによるトルク変動の大きさの相関を示す図である。FIG. 3B is a diagram showing a correlation between magnitudes of torque fluctuations due to a difference in cloth quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated at a rotation speed corresponding to the cloth quality. . 図４は、本発明の実施の形態１におけるドラム式洗濯機の布量に対する布質別トルク変動の相関を示す図である。FIG. 4 is a diagram showing the correlation of the torque variation according to the cloth quality with respect to the cloth amount of the drum type washing machine in the first embodiment of the present invention. 図５は、一般的なドラム式洗濯機における回転ドラム内の洗濯物の挙動を示す図である。FIG. 5 is a diagram showing the behavior of the laundry in the rotating drum in a general drum-type washing machine. 図６は、本発明の実施の形態１におけるドラム式洗濯機の動作を示すフローチャートである。FIG. 6 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention. 図７は、本発明の実施の形態１におけるドラム式洗濯機の動作を示すフローチャートである。FIG. 7 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention. 図８は、本発明の実施の形態１におけるドラム式洗濯機の動作を示すフローチャートである。FIG. 8 is a flowchart showing the operation of the drum type washing machine in the first embodiment of the present invention. 図９は、本発明の実施の形態２におけるドラム式洗濯機の動作を示すフローチャートである。FIG. 9 is a flowchart showing the operation of the drum type washing machine in the second embodiment of the present invention. 図１０Ａは、一般的なドラム式洗濯機において化学繊維の多い洗濯物が回転ドラム内で回転する挙動を示す図である。FIG. 10A is a diagram showing a behavior in which a laundry containing a lot of chemical fibers rotates in a rotating drum in a general drum type washing machine. 図１０Ｂは、一般的なドラム式洗濯機において綿の多い洗濯物が回転ドラム内で回転する挙動を示す図である。FIG. 10B is a diagram illustrating a behavior in which laundry with a lot of cotton rotates in a rotating drum in a general drum-type washing machine.
　（実施の形態１）
　以下、本発明の実施の形態１について、図面を参照しながら説明する。図１は、本発明の実施の形態１におけるドラム式洗濯機の概略構造を示す断面図である。図１を用いて構成を以下に説明する。 (Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 1 of the present invention. The configuration will be described below with reference to FIG.
　洗濯機本体１の内部には揺動自在に水槽３が収納され、水槽３内には洗濯槽である回転ドラム４が回転軸４ａを中心に回転自在に配設されている。回転ドラム４の回転軸４ａは、水槽３の背面外側に取り付けた駆動部としてのモータ６が直結されており、モータ６により回転ドラム４が回転駆動される。 A washing tub 3 is housed in the washing machine body 1 so as to be swingable, and a rotating drum 4 serving as a washing tub is disposed in the tub 3 so as to be rotatable around a rotation shaft 4a. A rotating shaft 4 a of the rotating drum 4 is directly connected to a motor 6 as a driving unit attached to the outside of the back surface of the water tank 3, and the rotating drum 4 is driven to rotate by the motor 6.
　回転ドラム４には、その周壁４ｃ全体に渡って複数の透孔４ｅが設けられ、水槽３内と回転ドラム４内とは通水および通気ができるようになっている。回転ドラム４の背面壁４ｄには円周方向に沿った複数の背面開口４ｆが形成されており、これら背面開口４ｆは水槽３の背面側上部に形成された導入口９ｅに対向するように配置されている。また、回転ドラム４の周壁４ｃ内面には複数の撹拌突起４ｂが設けられており、回転ドラム４の回転により、撹拌突起４ｂが回転ドラム４内の洗濯物を持ち上げることができる。なお、透孔４ｅは回転ドラム４の周壁全体に渡り設けたが、回転ドラム４の周壁に部分的に形成してもよく、要は、水槽３内と回転ドラム４内との通気性および通水性を確保でき、洗濯から乾燥に支障が出ないように設定すればよい。 The rotating drum 4 is provided with a plurality of through holes 4e over the entire peripheral wall 4c so that water can be passed and vented between the water tank 3 and the rotating drum 4. The back wall 4d of the rotating drum 4 is formed with a plurality of back openings 4f along the circumferential direction, and these back openings 4f are arranged so as to oppose the inlet 9e formed at the top on the back side of the water tank 3. Has been. In addition, a plurality of stirring protrusions 4 b are provided on the inner surface of the peripheral wall 4 c of the rotating drum 4, and the stirring protrusions 4 b can lift the laundry in the rotating drum 4 by the rotation of the rotating drum 4. Although the through-hole 4e is provided over the entire peripheral wall of the rotary drum 4, it may be partially formed on the peripheral wall of the rotary drum 4. In short, the air permeability between the water tank 3 and the rotary drum 4 and the passage of air are sufficient. What is necessary is just to set so that wateriness can be ensured and it does not interfere with drying from washing.
　また、回転ドラム４の回転軸４ａは、前面側から背面側に向かって下向きになるように傾斜しており、具体的には水平方向Ｘから例えば角度θ＝２０±１０度下向き傾斜させて配置されている。このように回転軸４ａを傾斜させることで、水槽３前面側の開口１３を上側に配置することができるようになり、大きく屈む姿勢をとることなく水槽３の開口１３を介して回転ドラム４内の洗濯物が取り出せるようになる。 Further, the rotating shaft 4a of the rotating drum 4 is inclined so as to face downward from the front side toward the back side. Specifically, the rotating shaft 4a is arranged to be inclined downward from the horizontal direction X by, for example, an angle θ = 20 ± 10 degrees. Has been. By inclining the rotation shaft 4a in this way, the opening 13 on the front side of the water tank 3 can be arranged on the upper side, and the inside of the rotating drum 4 can be passed through the opening 13 of the water tank 3 without taking a posture of bending greatly. The laundry can be taken out.
　また、回転軸４ａを水平方向とした場合に比べ、水槽３内に給水された水が背面側に溜まって少ない水量でも深い貯水状態が得られる。すなわち、少ない給水量でも洗濯物が含水しやすくすくなる。 Further, as compared with the case where the rotating shaft 4a is in the horizontal direction, the water supplied into the water tank 3 is accumulated on the back side, and a deep water storage state can be obtained even with a small amount of water. That is, it becomes easy for the laundry to hydrate with a small amount of water supply.
　水槽３は、回転ドラム４内の洗濯物に効率よく給水を行うために、回転ドラム４と同じ傾斜を持ってその近くに沿うように設けられている。回転ドラム４および水槽３を傾斜させることによって、水平に配置するよりも早くに洗濯物の外周側に水が接触し始めるので、洗濯物が含水しやすくなる。なお、給水量を考慮しなければ、回転ドラム４は水平であってもよいし、傾斜角度θが１０度未満であってもよい。 The water tank 3 is provided along the vicinity thereof with the same inclination as the rotating drum 4 in order to efficiently supply water to the laundry in the rotating drum 4. By inclining the rotating drum 4 and the water tub 3, the water starts to come into contact with the outer peripheral side of the laundry earlier than the horizontal arrangement, so that the laundry is likely to contain water. If the amount of water supply is not taken into consideration, the rotating drum 4 may be horizontal or the inclination angle θ may be less than 10 degrees.
　また、洗濯機本体１の前面側には、水槽３の開口１３を通して回転ドラム４内に通じる開口部が設けられ、その開口部には開閉扉５が開閉自在に設けられている。水槽３の開口１３は、その口縁に環状のシール材１４が装着されている。シール材１４の前面側は開閉扉５の背面側に当接して密閉し、上下左右、前後に揺動する水槽３の開口が動いてもシール材１４が変形し開閉扉５背面側へ押圧するので密閉性が維持されている。 In addition, an opening communicating with the inside of the rotating drum 4 through the opening 13 of the water tub 3 is provided on the front side of the washing machine body 1, and an opening / closing door 5 is provided in the opening so as to be freely opened and closed. The opening 13 of the water tank 3 is provided with an annular sealing material 14 at the mouth edge. The front surface side of the sealing material 14 is in contact with the rear surface side of the opening / closing door 5 and is sealed. As a result, hermeticity is maintained.
　水槽３の上部には、洗剤収容部７ａと、給水部である給水弁７ｂと、給水経路７ｃが設けてある。洗剤収容部７ａは、給水弁７ｂの開閉によって給水される。給水経路７ｃは、洗剤収容部７ａ内の洗剤を給水とともに水槽３内面と回転ドラム４外面との間に形成された空間Ｙに供給する。 The upper part of the water tank 3 is provided with a detergent storage part 7a, a water supply valve 7b which is a water supply part, and a water supply path 7c. The detergent container 7a is supplied with water by opening and closing the water supply valve 7b. The water supply path 7c supplies the detergent in the detergent container 7a to the space Y formed between the inner surface of the water tank 3 and the outer surface of the rotating drum 4 together with water supply.
　水槽３の最底部には、水槽３の最底部に一端を接続した排水管８ａと、排水部としての排水弁８ｂとを有し、排水弁８ｂの開閉によって洗い工程終了時、すすぎ工程終了時など、必要なときに水槽３内の水が排水管８ａを介して排水されるようになっている。さらに排水管８ａの下流側には、洗濯機本体１の外部から取り外し可能な排水フィルタ８ｃが配置され、排水に含まれる糸屑類を捕集する。 The bottom of the aquarium 3 has a drain pipe 8a with one end connected to the bottom of the aquarium 3, and a drain valve 8b as a drain. When the drain valve 8b is opened and closed, the washing process ends and the rinse process ends. For example, the water in the water tank 3 is drained through the drain pipe 8a when necessary. Further, on the downstream side of the drainage pipe 8a, a drainage filter 8c that can be removed from the outside of the washing machine body 1 is disposed to collect lint contained in the drainage.
　乾燥部９は、送風機９ｃと、送風経路９ｄと、導入口９ｅと、導出口９ｆと、除湿部９ｇと、加熱部９ｈと、フィルタ（図示せず）を備えている。 The drying unit 9 includes a blower 9c, a blower path 9d, an inlet 9e, a lead-out port 9f, a dehumidifying unit 9g, a heating unit 9h, and a filter (not shown).
　導出口９ｆは、水槽３および回転ドラム４から空気を出す。送風機９ｃは、導出口９ｆから空気を吸引する。フィルタ（図示せず）は、導出口９ｆからの空気に含まれる糸屑類を捕集し除塵する。導入口９ｅは、水槽３の背面側に設けられ、回転ドラム４内に送風機９ｃから吹き出される空気を入れる。送風経路９ｄは、送風機９ｃと導入口９ｅとを接続している。除湿部９ｇは、送風経路９ｄ内に配され、導出口９ｆからの高湿空気を除湿する。加熱部９ｈは、送風経路９ｄ内の除湿部９ｇより下流側に配され、除湿後の空気を加熱して高温空気とする。除湿部９ｇおよび加熱部９ｈをヒートポンプユニットで構成してもよいし、加熱部９ｈをヒータで構成し、除湿部９ｇを水冷方式もしくは空冷方式としてもよい。 The outlet 9f takes out air from the water tank 3 and the rotating drum 4. The blower 9c sucks air from the outlet 9f. The filter (not shown) collects and removes dusts contained in the air from the outlet 9f. The introduction port 9 e is provided on the back side of the water tank 3 and puts air blown from the blower 9 c into the rotating drum 4. The air passage 9d connects the air blower 9c and the introduction port 9e. The dehumidifying part 9g is arranged in the air blowing path 9d and dehumidifies the high-humidity air from the outlet 9f. The heating unit 9h is arranged on the downstream side of the dehumidifying unit 9g in the air blowing path 9d, and heats the air after dehumidification into high-temperature air. The dehumidifying part 9g and the heating part 9h may be constituted by a heat pump unit, the heating part 9h may be constituted by a heater, and the dehumidifying part 9g may be a water cooling method or an air cooling method.
　本実施の形態におけるドラム式洗濯機においては、除湿部９ｇおよび加熱部９ｈをヒートポンプユニットで構成するものとし、洗濯機本体１内には除湿部９ｇおよび加熱部９ｈとともにヒートポンプユニットを構成する圧縮機（図示せず）を設けるものとする。 In the drum type washing machine in the present embodiment, the dehumidifying part 9g and the heating part 9h are configured by a heat pump unit, and the compressor constituting the heat pump unit together with the dehumidifying part 9g and the heating part 9h in the washing machine body 1 (Not shown) shall be provided.
　また、上記に併せ、給水や排水動作を含む洗い工程時、すすぎ工程時など必要に応じ、水槽３内の水を循環ポンプ３０により循環させることで、洗剤の早期溶け込みや偏りの防止、洗いやすすぎの機能向上を図ることができる。 In addition to the above, the water in the aquarium 3 is circulated by the circulation pump 30 as necessary at the time of the washing process including the water supply and drainage operations, the rinsing process, etc. It is possible to improve the function too much.
　循環ポンプ３０は、図１に示すように洗濯機本体１の底部である台板２ａ上に固定されており、洗浄水を吸引して循環水路３１に送水する。また、送水された洗浄水は循環水路３１を通って回転ドラム４の開口１３から洗濯槽内に吐出される。より詳細には、循環水路３１の吐出側経路３１ｂが、水槽３の開口１３まわりにある前端壁３ｇに設けた噴射口５１に外面から接続して、水槽３の前端壁３ｇの内側の面と、対応する回転ドラム４の前端壁４ｇの外側の面との間に洗浄水を噴射し、それらの間で形成する流路を通じて回転ドラム４内に吐出する。これにより、吐出側経路３１ｂからの水の噴射口５１が回転ドラム４内の洗濯物と接触しない位置にあるので洗濯物が引っ掛かって洗い、すすぎや乾燥などに必要な挙動を乱したり、あるいは洗濯物を傷めたり、破れたりするようなことを防止することができるし、見栄えのよい外観が損なわれない。このときの循環ポンプ３０のモータ回転数は、例えば３５００ｒｐｍ程度に設定されている。 As shown in FIG. 1, the circulation pump 30 is fixed on a base plate 2 a that is the bottom of the washing machine body 1, and sucks wash water and sends it to the circulation channel 31. Further, the fed wash water is discharged into the washing tub from the opening 13 of the rotary drum 4 through the circulation water channel 31. More specifically, the discharge side path 31b of the circulation water channel 31 is connected to the injection port 51 provided in the front end wall 3g around the opening 13 of the water tank 3 from the outer surface, and the inner surface of the front end wall 3g of the water tank 3 The cleaning water is jetted between the corresponding outer surfaces of the front end walls 4g of the rotating drum 4 and discharged into the rotating drum 4 through a flow path formed therebetween. As a result, the water injection port 51 from the discharge side passage 31b is in a position where it does not come into contact with the laundry in the rotating drum 4, so that the laundry is caught and washed, disturbing the behavior required for rinsing or drying, or It is possible to prevent the laundry from being damaged or torn, and the appearance is not impaired. At this time, the rotational speed of the motor of the circulation pump 30 is set to about 3500 rpm, for example.
　なお、噴射口５１は、その取り付け位置が下部に限られるものではなく、回転ドラム４内の洗濯物に接触しないような位置であれば、上部に設けられてもよいし、上部と下部など、複数位置に配置されてもよい。 It should be noted that the injection port 51 is not limited to the attachment position at the lower part, and may be provided at the upper part as long as it does not come into contact with the laundry in the rotating drum 4. It may be arranged at a plurality of positions.
　また、洗浄水を回転ドラム４内に単純に噴射するようにした場合、せっかくの循環水が回転ドラム４内の洗濯物の局部にしか噴射されず、循環効果が十分に生かされない。一方、循環水を広域に噴射するのに特別な噴射ノズルを採用すると、必要なポンプ圧が上昇し、コスト上昇の原因になるうえに限度がある。そこで、本実施の形態１では、水槽３内の水を循環ポンプ３０により循環させるのに、例えば回転数制御が可能であるＤＣブラシレスモータが用いられている。 Further, when the washing water is simply sprayed into the rotating drum 4, the circulating water is sprayed only to the local portion of the laundry in the rotating drum 4, and the circulation effect is not fully utilized. On the other hand, when a special injection nozzle is used to inject circulating water over a wide area, the necessary pump pressure increases, which causes a cost increase. Therefore, in the first embodiment, for example, a DC brushless motor capable of controlling the rotation speed is used to circulate the water in the water tank 3 by the circulation pump 30.
　これにより、吐出される循環水の流量、流速を調整することで、特別な噴射ノズルを用いることなく、吐出される循環水の上下方向の角度、左右方向の広がり度合いを変えることができる。この結果、循環ポンプ３０により回転ドラム４内の洗濯物に対し満遍なく、かつ最適な位置に循環水を供給可能となり、洗い性能およびすすぎ性能を高めることができる。 Thus, by adjusting the flow rate and flow velocity of the discharged circulating water, the vertical angle and the lateral extent of the discharged circulating water can be changed without using a special injection nozzle. As a result, it becomes possible to supply the circulating water evenly and optimally to the laundry in the rotating drum 4 by the circulation pump 30, and the washing performance and the rinsing performance can be improved.
　また、洗濯物が位置しない空間に向けて、無駄に循環水が供給されることを避けられるので、無駄な電力の消費が抑えられ、さらに洗浄水による異常な発泡も抑制することができる。 Further, since it is possible to avoid unnecessary supply of circulating water toward the space where the laundry is not located, wasteful power consumption can be suppressed, and abnormal foaming due to the cleaning water can also be suppressed.
　循環ポンプ３０の回転数は、通常の洗い運転時には、例えば上記したように３５００ｒｐｍ程度とし、毎分２０Ｌ程度の循環水を回転ドラム４内の洗濯物に供給する。これにより洗い性能、すすぎ性能の向上を図る。一方、負荷量検知部により洗濯物の量が所定値より少ないと判断された場合は、制御装置１１を構成する制御部１１ａは、循環ポンプ３０の回転数を、例えば２５００ｒｐｍ程度に落とし、供給する循環水を毎分１５Ｌ程度にする。循環ポンプ３０の回転数を下げることで、図１の矢印Ｂのように、循環水の吐出される上下方向の角度を水平に近づけ、左右方向の広がり度合いを小さくする。これにより、洗濯物が少ない場合は、吐出された循環水が回転ドラム４内の下方に位置する洗濯物に噴射され、効率的に循環水が供給される。 The rotation speed of the circulation pump 30 is, for example, about 3500 rpm as described above during normal washing operation, and about 20 L of circulating water per minute is supplied to the laundry in the rotating drum 4. This will improve washing performance and rinsing performance. On the other hand, when it is determined by the load amount detection unit that the amount of laundry is less than the predetermined value, the control unit 11a constituting the control device 11 reduces the rotational speed of the circulation pump 30 to about 2500 rpm, for example. Circulating water is about 15L / min. By reducing the number of revolutions of the circulation pump 30, as shown by an arrow B in FIG. 1, the angle in the vertical direction in which the circulating water is discharged is made closer to the horizontal, and the degree of spread in the left-right direction is reduced. Thereby, when there is little laundry, the discharged circulating water is injected to the laundry located in the downward direction in the rotating drum 4, and circulating water is supplied efficiently.
　なお、本実施の形態１では、循環ポンプ３０を洗濯機本体１の底部である台板２ａ上に設置する構成としたが、これに限定されるものではなく、水槽３内の水を循環させるのに循環ポンプ３０が水槽３の下部３ｂに設置される構成でもよい。また、吐出側経路３１ｂは１つに限られず、複数あっても良いし、噴射口５１は下部だけでなく上部からでもよいし、複数あってもよい。 In addition, in this Embodiment 1, although it was set as the structure which installs the circulation pump 30 on the baseplate 2a which is the bottom part of the washing machine main body 1, it is not limited to this, The water in the water tank 3 is circulated. However, the structure where the circulation pump 30 is installed in the lower part 3b of the water tank 3 may be sufficient. Moreover, the discharge side path | route 31b is not restricted to one, There may be multiple, and the injection port 51 may be not only from the lower part but from the upper part, and may be plural.
　さらに、実施の形態１に係るドラム式洗濯機には、回転ドラム４内に給水された水量を検知する水位検知部１０が設けられている。これは水槽３の最低部近傍の所定位置に配設されたエアトラップ部１０ａと圧力検知部１０ｃをホース１０ｂにより接続したものである。圧力検知部１０ｃは、圧力によって移動するベローズ部分に一体化されたフェライトと、その外周上を囲む固定側のコイルとで構成され、そのインダクタンス変化を利用して移動ストローク距離をトラップ内圧力に変換する。水位検知部１０は、エアトラップ部１０ａに洗浄水がこないと、大気開放状態となり、出力は一定となる。 Furthermore, the drum-type washing machine according to the first embodiment is provided with a water level detection unit 10 that detects the amount of water supplied into the rotary drum 4. In this, an air trap part 10a and a pressure detection part 10c arranged at a predetermined position near the lowest part of the water tank 3 are connected by a hose 10b. The pressure detection unit 10c is composed of a ferrite integrated with a bellows portion that moves by pressure, and a fixed-side coil that surrounds the outer periphery of the pressure detection unit 10c. To do. The water level detection unit 10 is open to the atmosphere and the output is constant when the cleaning water does not come into the air trap unit 10a.
　このように、水位検知部１０はエアトラップ機構によるエア内圧計測によるセンシングが一般的であり、エア内圧が安定的な大気開放圧力から変化するまでの時間を計測するのが水位センサのばらつきに影響を受けない適切な算出方法である。 As described above, the water level detection unit 10 is generally sensing by measuring the air internal pressure by the air trap mechanism, and measuring the time until the air internal pressure changes from the stable atmospheric open pressure affects the variation of the water level sensor. It is an appropriate calculation method that is not subject to
　また水位検知部１０の出力は、回転ドラム４の回転の有無やその回転数など、洗濯動作中の回転ドラム４の回転によって出力が変化するため、制御部１１ａは、回転ドラム４の回転数に応じて回転数と水位のテーブルを複数持っている。つまり、回転ドラム４が静止中でも回転中でも水位を認識することができる。 Further, the output of the water level detection unit 10 changes depending on the rotation of the rotating drum 4 during the washing operation, such as whether or not the rotating drum 4 is rotating, and the rotation number of the rotating drum 4. Correspondingly, there are several tables of rotation speed and water level. That is, the water level can be recognized while the rotating drum 4 is stationary or rotating.
　また、制御部１１ａは、給水、排水や回転ドラム４の駆動の指示はもちろん、水位検知部１０などの各種センサ出力を含め、すべての入出力制御をタイマーで管理できるシステムを具備しており、各動作、タイミングにおける所要時間を知ることができる。 The control unit 11a includes a system that can manage all input / output control with a timer, including various sensor outputs such as the water level detection unit 10 as well as instructions for water supply, drainage, and driving of the rotating drum 4. The time required for each operation and timing can be known.
　振動検知部１６は、水槽３の振動を検出するものである。振動検知部１６は、少なくとも一つの加速度センサー（図示せず）を有し、水槽３の上下方向、左右方向、前後方向のうちの少なくとも一つの方向の振動を検知し、検知した方向毎の加速度の総和を出力する。 The vibration detection unit 16 detects the vibration of the water tank 3. The vibration detection unit 16 includes at least one acceleration sensor (not shown), detects vibration in at least one of the vertical direction, the horizontal direction, and the front-rear direction of the water tank 3, and detects the acceleration in each detected direction. Output the sum of.
　実施の形態１では、例として、回転ドラム４の正面に対して上下方向の振動（加速度）を検出している。なお、加速度センサとしては、半導体加速度センサ、圧電型加速度センサなどのいずれでも良く、さらに多軸（２軸もしくは３軸）方向の加速度センサでも良い。実際の水槽３の振動は、上下方向の成分が大半を占めるので、上下の一方向だけでも衣類落下の加速度を十分な精度で検知できるが、予期せぬ水槽３の左右、前後方向の振動が発生して水槽３が筐体に当たる場合が希にあるため、本発明の実施の形態１においては、３軸の加速度センサを用いて、３軸の加速度成分を加算して合計したものを利用する。 In Embodiment 1, as an example, vibration (acceleration) in the vertical direction with respect to the front surface of the rotating drum 4 is detected. The acceleration sensor may be a semiconductor acceleration sensor, a piezoelectric acceleration sensor, or the like, and may be a multi-axis (two-axis or three-axis) acceleration sensor. The actual vibration of the aquarium 3 occupies most of the components in the vertical direction, so the acceleration of clothing falling can be detected with sufficient accuracy in only one direction of the vertical direction. Since there is a rare case where the water tank 3 hits the casing, in the first embodiment of the present invention, a three-axis acceleration sensor is used to add and add the three-axis acceleration components. .
　次に、制御装置１１の詳細を図２により説明する。図２は本発明の実施形態１におけるドラム式洗濯機の制御装置１１の構成を示すブロック図である。制御装置１１は、マイクロコンピュータで構成されており、制御部１１ａと、洗濯物の布質を検知する布質検知部１１ｂと、洗濯物の量を検知する布量検知部１１ｄとを備えている。また、制御部１１ａは、パワースイッチング部（図示せず）を介して、モータ６、給水弁７ｂ、排水弁８ｂ等を制御することで、洗い、すすぎ、脱水を行う。 Next, details of the control device 11 will be described with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the control device 11 of the drum type washing machine according to the first embodiment of the present invention. The control device 11 includes a microcomputer, and includes a control unit 11a, a cloth quality detection unit 11b that detects the quality of the laundry, and a cloth amount detection unit 11d that detects the amount of the laundry. . The control unit 11a controls the motor 6, the water supply valve 7b, the drain valve 8b, and the like through a power switching unit (not shown) to perform washing, rinsing, and dehydration.
　回転数算出部１１ｅは、回転数検知部としてのホール素子６ａから出力される速度信号から回転ドラム４の回転数を算出する。回転ドラム４の回転数は布量検知部１１ｄに供給され、検出された回転数に基づき、布量が検知される。 The rotation speed calculation unit 11e calculates the rotation speed of the rotary drum 4 from the speed signal output from the hall element 6a as the rotation speed detection unit. The rotation speed of the rotary drum 4 is supplied to the cloth amount detection unit 11d, and the cloth amount is detected based on the detected rotation speed.
　布量検知は、以下の要領で行う。まず、制御部１１ａがモータ６を回転駆動する。このときの回転ドラム４の回転数は、洗濯物が回転ドラム４の周壁４ｃの内側に張り付く程度の回転数、例えば１００～１４０ｒｐｍ程度まで一旦立ち上げられる。制御部１１ａは、所定時間、回転ドラム４の回転を維持した後、モータ６の通電をオフする。その後、回転ドラム４が惰性により回転することで、モータ６が回転する。このとき、回転ドラム４の回転は、摩擦トルクにより次第に低下して、やがて回転ドラム４は停止する。通電停止から回転ドラム４の停止までの時間は、洗濯物の量が多いときは長く、洗濯物の量が少ないときは短い。この停止に要する時間の違いが洗濯物の量に比例することを利用して洗濯物の量が検知される。 Cloth amount detection is performed as follows. First, the control unit 11a drives the motor 6 to rotate. The rotational speed of the rotating drum 4 at this time is once raised to a rotational speed at which the laundry is stuck to the inside of the peripheral wall 4c of the rotating drum 4, for example, about 100 to 140 rpm. The controller 11a turns off the motor 6 after maintaining the rotation of the rotary drum 4 for a predetermined time. Then, the motor 6 rotates because the rotating drum 4 rotates due to inertia. At this time, the rotation of the rotating drum 4 gradually decreases due to the friction torque, and the rotating drum 4 eventually stops. The time from the stop of energization to the stop of the rotating drum 4 is long when the amount of laundry is large, and short when the amount of laundry is small. The amount of laundry is detected using the fact that the difference in time required for this stop is proportional to the amount of laundry.
　制御部１１ａは、布量検知部１１ｄにより検知した布量に応じて洗浄水位を決定し、給水弁７ｂを開けて洗浄水位まで給水する。その後、振動検知部１６からの出力を入力し、所定方向（本実施の形態では上下方向）に最大の加速度がつくようモータ６の回転数をベクトル制御しながら可変させて、モータ６の回転数を決定する。その後、決定した回転数を一定にしたまま、トルク変動算出部１１ｃからの出力を入力して、布質検知部１１ｂにより洗濯物の布質が判定される。 The control unit 11a determines the cleaning water level according to the cloth amount detected by the cloth amount detection unit 11d, and opens the water supply valve 7b to supply water to the cleaning water level. Thereafter, the output from the vibration detection unit 16 is input, and the rotational speed of the motor 6 is varied while performing vector control so that the maximum acceleration is applied in a predetermined direction (vertical direction in the present embodiment). To decide. Thereafter, the output from the torque fluctuation calculation unit 11c is input while the determined number of revolutions is kept constant, and the fabric quality of the laundry is determined by the fabric quality detection unit 11b.
　トルク変動算出部１１ｃは、トルク変動検知部であるモータ電流検知部１７から検知したモータ６の出力を演算する。モータ６をベクトル制御により回転制御する構成において、ベクトル制御で得られるｑ軸電流はトルクに比例することから、ｑ軸電流を用いてモータ６のトルクおよびトルク変動の大きさを算出している。 The torque fluctuation calculation part 11c calculates the output of the motor 6 detected from the motor current detection part 17 which is a torque fluctuation detection part. In the configuration in which the rotation of the motor 6 is controlled by vector control, the q-axis current obtained by vector control is proportional to the torque, so the torque of the motor 6 and the magnitude of torque variation are calculated using the q-axis current.
　本発明の実施の形態１におけるドラム式洗濯機は、モード設定や制御プログラムに従い、モータ６、給水弁７ｂ、排水弁８ｂ、乾燥部９を自動制御して少なくとも洗い工程、すすぎ工程、脱水工程、乾燥工程を行う機能を有している。 The drum type washing machine in the first embodiment of the present invention automatically controls the motor 6, the water supply valve 7b, the drain valve 8b, and the drying unit 9 according to mode setting and a control program, and at least a washing process, a rinsing process, a dehydrating process, It has a function of performing a drying process.
　以上のように構成されたドラム式洗濯機について、以下、その動作、作用について布質を検知する工程を説明する。 For the drum type washing machine configured as described above, the process of detecting the cloth quality will be described below for its operation and action.
　通常の洗い運転においては、まず開閉扉５より洗濯物が投入され、濡れていない状態で布量検知が回転ドラム４の回転とともになされる。基本的な給水量は、この時の布量検知の結果から決定される。その後、給水弁７ｂを開き給水が開始される。また、このときの給水を利用して、洗剤収容部７ａの洗剤も水槽３内に投入される。布量に応じて決定した洗浄水位まで給水がされると、回転ドラム４は左右の回転を３分ほど繰り返して洗濯物に洗浄水を十分に吸水（含水）させる。 In the normal washing operation, the laundry is first put in from the door 5 and the cloth amount is detected along with the rotation of the rotary drum 4 without being wet. The basic water supply amount is determined from the result of the cloth amount detection at this time. Then, the water supply valve 7b is opened and water supply is started. Further, the detergent in the detergent container 7 a is also put into the water tank 3 using the water supply at this time. When the water is supplied to the washing water level determined according to the amount of cloth, the rotating drum 4 repeats the left and right rotations for about 3 minutes to sufficiently absorb the washing water (containing water).
　本発明の実施の形態１においては、洗濯物が十分に洗浄水を吸水した状態となった後に、振動検知部１６により検知する振動の大きさが最大となるように、モータ６が動作する。すなわち、制御部１１ａは、回転ドラム４の前面側から見て縦方向（上下方向）に最大加速度が発生するように、回転ドラム４の回転数を４０～４９ｒｐｍの範囲で変化させる。具体的には、４５ｒｐｍで２０秒間、回転ドラム４を回転させるとともに、振動検知部１６が２０秒間の平均的な上下方向の加速度を検出する。次に、４６ｒｐｍで同じ時間、回転ドラム４を回転させながら、振動検知部１６が、同じく上下方向の加速度を検出する。制御部１１ａは、４５ｒｐｍで回転時の上下方向の加速度と比較して、より上下方向に平均的な加速度がかかる回転ドラム４の回転数を探る。同様にして４７、４８、４９ｒｐｍと、４４から４０ｒｐｍとドラム回転数を変化させて一番、平均的に加速度がかかるドラム回転数を求めていく。 In Embodiment 1 of the present invention, after the laundry has sufficiently absorbed the washing water, the motor 6 operates so that the magnitude of the vibration detected by the vibration detection unit 16 is maximized. That is, the control unit 11a changes the rotational speed of the rotating drum 4 in a range of 40 to 49 rpm so that the maximum acceleration is generated in the vertical direction (vertical direction) when viewed from the front side of the rotating drum 4. Specifically, the rotating drum 4 is rotated at 45 rpm for 20 seconds, and the vibration detector 16 detects an average vertical acceleration for 20 seconds. Next, while rotating the rotating drum 4 for the same time at 46 rpm, the vibration detector 16 similarly detects the acceleration in the vertical direction. The controller 11a searches for the number of rotations of the rotating drum 4 to which an average acceleration is applied in the vertical direction compared to the vertical acceleration during rotation at 45 rpm. Similarly, by changing the drum rotation speed from 47, 48, and 49 rpm to 44 to 40 rpm, the drum rotation speed to which the average acceleration is applied is obtained.
　次に、布質の特性に応じたトルク変動の挙動について図３Ａ、図３Ｂを用いて説明する。図３Ａは本発明の実施の形態１におけるドラム式洗濯機の回転ドラムを４５ｒｐｍで一方向に回転させたときの布質の違いによるトルク変動の大きさの相関を示す図である。図３Ｂは本発明の実施の形態１におけるドラム式洗濯機の回転ドラムを布質に応じた回転数で回転させたときの布質の違いによるトルク変動の大きさの相関を示す図である。 Next, the behavior of torque fluctuation according to the properties of the fabric will be described with reference to FIGS. 3A and 3B. FIG. 3A is a diagram showing the correlation between the magnitudes of torque fluctuations due to the difference in fabric quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated in one direction at 45 rpm. FIG. 3B is a diagram showing the correlation of the magnitude of torque fluctuation due to the difference in cloth quality when the rotating drum of the drum type washing machine in Embodiment 1 of the present invention is rotated at the number of rotations according to the cloth quality.
　図３Ａに示すように、吸水性の低い化学繊維が多い場合、４５ｒｐｍで回転ドラム４を回転させると、洗濯物の多くは回転ドラム４の内側に張りついており、回転ムラが発生しにくいので、トルク変動も小さくなる。一方で、吸水性の高い綿衣類が多い場合、回転ドラム４の上位部に持ち上がらず、回転ドラム４の低い位置で洗濯物が空回りする。図３Ｂに示すように、下部近傍でごろつき空回りをしていて、回転ムラが発生しにくい、すなわちトルク変動も小さくなる。 As shown in FIG. 3A, when there are many chemical fibers with low water absorption, when the rotating drum 4 is rotated at 45 rpm, most of the laundry is stuck inside the rotating drum 4 and uneven rotation is less likely to occur. Torque fluctuation is also reduced. On the other hand, when there are many cotton clothes with high water absorption, it does not lift to the upper part of the rotating drum 4, and the laundry runs idle at a low position of the rotating drum 4. As shown in FIG. 3B, the engine is idle in the vicinity of the lower part, and rotation unevenness is unlikely to occur, that is, torque fluctuation is reduced.
　また、回転ドラム４の低い位置で洗濯物が空回りする場合に、中途半端に持ち上がり落下する洗濯物が、回転方向に上昇する撹拌突起４ｂに当たり、たたき上げられることがある。このとき、回転ドラム４は左右方向に大きく振動し、トルク変動検知部１７によって検知するトルク変動は大きくなる。このような挙動により、トルク変動が大きいからといって、必ずしも洗濯物が回転ドラム４の最上部から最下部に落下しているわけではない。 In addition, when the laundry is idle at a low position of the rotating drum 4, the laundry that is lifted and dropped halfway hits the stirring protrusion 4b that rises in the rotation direction and may be knocked up. At this time, the rotating drum 4 vibrates greatly in the left-right direction, and the torque fluctuation detected by the torque fluctuation detector 17 increases. Due to such behavior, just because the torque fluctuation is large, the laundry does not necessarily fall from the uppermost part of the rotating drum 4 to the lowermost part.
　このように、回転ドラム４の最上部から最下部に洗濯物が落下しないと、布質に応じた回転ムラやトルク変動の違いを見分けにくく、布質の検知は困難である。 As described above, if the laundry does not fall from the uppermost part to the lowermost part of the rotating drum 4, it is difficult to distinguish the rotation unevenness and the torque fluctuation according to the cloth quality, and it is difficult to detect the cloth quality.
　回転ドラム４の回転数が４０～４９ｒｐｍの範囲で振動検知部１６により最大加速度を検知する回転数を決定し、その回転数で回転ドラム４を回転させることで、回転ドラム４の最上部から最下部に向かい洗濯物が最大の加速度をつけて確実に叩き落とされる。この状態で、回転数とトルク変動を検知すると、図３Ｂのような結果が得られる。図３Ｂに示すように、洗濯物に化学繊維が多い場合、４３ｒｐｍに回転数を落とすことで回転ドラム４の周壁４ｃの内側への衣類のはりつきが軽減される。すなわち、回転ドラム４の最上部から最下部に向かい洗濯物に最大の加速度をつけて確実に叩き落としている状態となる。 When the rotational speed of the rotating drum 4 is in the range of 40 to 49 rpm, the vibration detecting unit 16 determines the rotational speed at which the maximum acceleration is detected, and the rotating drum 4 is rotated at that rotational speed. Facing the bottom, the laundry is knocked down with maximum acceleration. When the rotational speed and torque fluctuation are detected in this state, a result as shown in FIG. 3B is obtained. As shown in FIG. 3B, when the laundry has a large amount of chemical fiber, the garment sticking to the inner side of the peripheral wall 4 c of the rotating drum 4 is reduced by reducing the rotational speed to 43 rpm. That is, it is in a state in which the laundry is struck down with maximum acceleration from the uppermost part to the lowermost part of the rotating drum 4.
　一方で、吸水性の高い綿衣類が多い場合、水を含んだ衣類は重いので４８ｒｐｍに回転数を上げることにより、回転ドラム４の最上部まで衣類を持ち上げることができ、最下部に向かい洗濯物が最大の加速度をつけて確実に叩き落とされる。 On the other hand, when there are many cotton clothes with high water absorption, clothes containing water are heavy, so by increasing the number of revolutions to 48 rpm, the clothes can be lifted up to the top of the rotating drum 4, and the laundry is directed to the bottom. Is knocked down with maximum acceleration.
　このように、回転ドラム４を回転させる最低限の条件ができて、次にトルク変動の大きさによる布質判定を行う。 In this way, the minimum condition for rotating the rotary drum 4 is established, and then the cloth quality is determined based on the magnitude of torque fluctuation.
　トルク変動の大きさによる布質判定を行う工程では、上記したように、制御部１１ａは、洗濯物に最大の加速度をつけて確実に叩き落すことができる回転数で、例えば化学繊維衣類が多い場合は４３ｒｐｍなどで、回転ドラム４を連続して回転させる。このときの短期間周期の瞬時での回転数の変動（トルク変動）が大きいのか小さいのかを細かく、例えば０．１秒単位でのトルク変動の大きさが検知される。 In the process of determining the cloth quality based on the magnitude of the torque fluctuation, as described above, the control unit 11a has a rotation speed at which the laundry can be reliably knocked down with the maximum acceleration. In this case, the rotating drum 4 is continuously rotated at 43 rpm or the like. At this time, it is finely detected whether the fluctuation (torque fluctuation) of the rotational speed in the short period cycle is large or small, for example, the magnitude of the torque fluctuation in units of 0.1 second is detected.
　具体的には、図５にて示すように、回転ドラム４内の洗濯物の落下により、回転する回転ドラム４が沈み込むので、回転ムラ（モータ６のトルク変動）が生じる。例えば４ｋｇ程度の綿衣類を入れた場合、倍の８ｋｇの洗浄水を吸い込む。このため回転ドラム４の中は洗浄水を含んだ布の塊が１２ｋｇある計算になる。 Specifically, as shown in FIG. 5, the rotating rotating drum 4 sinks due to the fall of the laundry in the rotating drum 4, thereby causing rotation unevenness (torque fluctuation of the motor 6). For example, if you put about 4kg of cotton clothes, double 8kg of washing water. For this reason, the rotation drum 4 is calculated to have 12 kg of cloth containing washing water.
　回転ドラム４内の洗濯物は布の偏り方にもよるが、おおよそ２ｋｇの水を含んだ綿の塊が回転ドラム４の最上部まで持ち上げられ、回転ドラム４の最下部に向かって勢いよく落とされるので、容易に回転ドラム４は沈み込み回転ムラが発生する。回転ムラの大きさは、化学繊維であれば±２ｒｐｍ、綿であれば±５ｒｐｍと数値差自体は小さい。これはモータ６の制御方式を高速な応答性をもつベクトル制御を使うことで回転ムラが発生してもモータ電流を急速に増加減することで回転ムラを生じにくくしているためである。回転ムラの差が小さい分だけトルク変動への影響は大きいので、本発明の実施の形態１の制御装置１１ではトルク変動（モータ電流のｑ軸電流）を参照して布質の違いを見分けやすい。ベクトル制御を行わない場合には、回転数の変動（回転ムラ）がもっと大きくなるため、回転ムラの大きさで布質を判定することも可能である。 Although the laundry in the rotating drum 4 depends on how the cloth is biased, a lump of cotton containing approximately 2 kg of water is lifted up to the top of the rotating drum 4 and dropped down toward the bottom of the rotating drum 4 Therefore, the rotating drum 4 easily sinks and uneven rotation occurs. The magnitude of the rotation unevenness is ± 2 rpm for chemical fibers and ± 5 rpm for cotton, and the numerical difference itself is small. This is because even if rotation unevenness occurs by using vector control having high-speed response as the control method of the motor 6, it is difficult to cause rotation unevenness by rapidly increasing and decreasing the motor current. Since the influence on the torque fluctuation is large as much as the difference in rotation unevenness is small, the control device 11 according to the first embodiment of the present invention can easily distinguish the difference in the fabric quality by referring to the torque fluctuation (the q-axis current of the motor current). . When the vector control is not performed, the variation in the rotation speed (rotation unevenness) becomes larger, so that the cloth quality can be determined based on the magnitude of the rotation unevenness.
　なお、トルク変動を検出するタイミングは、モータ６の動作開始、すなわち回転ドラム４の回転開始から５秒間はドラム内の洗濯物が安定しないためトルク変動を検知せず、５秒経過以降からトルク変動の検知を開始する。回転ドラム４を停止するまでの間でできるだけ長い間の変動を検知した方が精度がよい。 Note that the torque fluctuation is detected at the timing when the motor 6 starts operating, that is, for 5 seconds after the rotation of the rotary drum 4, the laundry in the drum is not stable, so that the torque fluctuation is not detected and the torque fluctuation is detected after 5 seconds. Start detecting. It is better to detect the fluctuation as long as possible until the rotating drum 4 is stopped.
　最後に、トルク変動検知部１７から検知したトルク変動の大きさから布質を検知する工程について図４を用いて説明する。図４は、本発明の実施の形態１におけるドラム式洗濯機の布量に対する布質別トルク変動の相関を示す図である。 Finally, the process of detecting the cloth quality from the magnitude of the torque fluctuation detected by the torque fluctuation detector 17 will be described with reference to FIG. FIG. 4 is a diagram showing the correlation of the torque variation according to the cloth quality with respect to the cloth amount of the drum type washing machine in the first embodiment of the present invention.
　トルク変動算出部１１ｃにより、上記の回転ドラム４のトルク変動の最大値と最小値の差は演算しやすいような数値（例えば最大４００ビットなどという単位の数値）に置き換えられて、布質検知部１１ｂに入力される。図４に示すように、しきい値である第１の所定値Ａ、第２の所定値Ｂを照らし合わせて、吸水性が高い繊維や吸水性が低い繊維の割合によって布質が判定される。 The difference between the maximum value and the minimum value of the torque fluctuation of the rotary drum 4 is replaced with a numerical value that is easy to calculate (for example, a numerical value in units of a maximum of 400 bits) by the torque fluctuation calculation section 11c, and the cloth quality detection section 11b. As shown in FIG. 4, the fabric quality is determined by comparing the first predetermined value A and the second predetermined value B, which are threshold values, with the ratio of fibers having high water absorption and fibers having low water absorption. .
　図４の場合であれば、第２の所定値Ｂ以下、例えば２４０ビット以下であれば、布質は化学繊維からなる衣類の割合が多いと判定される。２４０ビットを超え、だい１の所定値Ａ未満、たとえば２９０ビット未満であれば綿と化学繊維がおおよそ半々の洗濯物であり、２９０ビットを越える場合は綿からなる衣類の割合が多い、というように、布質が判定される。 In the case of FIG. 4, if it is 2nd predetermined value B or less, for example, 240 bits or less, it will be determined that the ratio of the clothing which consists of a chemical fiber is large. If it exceeds 240 bits and is less than a predetermined value A of 1, for example, less than 290 bits, cotton and chemical fibers are roughly half of laundry, and if it exceeds 290 bits, the proportion of clothing made of cotton is high. Next, the fabric quality is determined.
　布質と布量の関係について補足すると、図４によれば、いわゆる実用域と呼ばれる洗濯容量（一般的に大人が一日で着替えて洗う洗濯の容量は１．５ｋｇと言われており、１～３名の家族が毎日洗う最も実用的な洗濯容量）の範囲は、布量に依存することなく布質を判定することが可能である。しかしながら、１ｋｇ以下の容量の場合や６ｋｇを越える容量の場合は、布量判定の結果得る布量に応じて布質判定のしきい値を変更する必要（布量による布質検知のしきい値補正）がある。 Supplementing the relationship between the fabric quality and the amount of fabric, according to FIG. 4, the so-called practical area is called laundry capacity (generally, it is said that the capacity of laundry that an adult changes and wash in one day is 1.5 kg. The range of the most practical washing capacity (up to 3 families washing every day) can determine the fabric quality without depending on the amount of fabric. However, in the case of a capacity of 1 kg or less or a capacity exceeding 6 kg, it is necessary to change the cloth quality judgment threshold value according to the cloth quantity obtained as a result of the cloth quantity judgment (the cloth quality detection threshold value based on the cloth quantity). Correction).
　洗濯物が１ｋｇ以下の要領である場合には、洗浄水を含んでも比較的軽いため、振動検知部１６による布質の差を検出しにくい。また、洗濯物が６ｋｇを超える場合には、回転ドラム４内は洗濯物がほぼ充填されており、回転ドラム４の上部から下部に落下させることが困難である。このため振動検知部１６による布質の差を検出しにくい。よって、トルク変動の最大値と最小値の差であるトルク最大変動幅は小さくなる。よって、吸水性の高低を判断するしきい値を下げることで、布量に応じた布質の判定が可能となる。 When the laundry is less than 1 kg, it is difficult to detect the difference in the cloth quality by the vibration detection unit 16 because it is relatively light even if it contains washing water. When the laundry exceeds 6 kg, the rotary drum 4 is almost filled with the laundry, and it is difficult to drop the rotary drum 4 from the upper part to the lower part. For this reason, it is difficult to detect a difference in fabric quality by the vibration detection unit 16. Therefore, the maximum torque fluctuation range, which is the difference between the maximum value and the minimum value of torque fluctuation, becomes small. Therefore, the fabric quality can be determined according to the amount of fabric by lowering the threshold value for determining the level of water absorption.
　このように、本実施の形態におけるドラム式洗濯機は、洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、洗濯槽を収容する水槽と、水槽の振動を検知する振動検知部と、洗濯槽を駆動する駆動部と、駆動部のトルク変動の大きさを検知するトルク変動検知部と、洗濯物の布質を検知する布質検知部と、駆動部等を駆動して洗い、すすぎ、脱水等の各行程を制御する制御部とを備え、制御部は、振動検知部により検知する振動の大きさが最大となるよう駆動部を動作させ、布質検知部は、この振動の大きさが最大となる状態でのトルク変動の大きさから洗濯物の布質を判断するようにしたものである。 As described above, the drum-type washing machine in the present embodiment accommodates laundry, and a washing tub that is rotatable around a horizontal rotation axis or a rotation axis that is inclined downward from the front side toward the back side; Water tank for storing the washing tub, vibration detection unit for detecting vibration of the water tub, driving unit for driving the washing tub, torque fluctuation detecting unit for detecting the magnitude of torque fluctuation of the driving unit, and the quality of the laundry And a control unit that controls each process such as washing, rinsing, and dehydration by driving the drive unit, etc., and the control unit has the maximum magnitude of vibration detected by the vibration detection unit. Then, the drive unit is operated so that the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of the torque fluctuation in a state where the magnitude of the vibration is maximized.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させる。つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができる。したがって、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
　また、本実施の形態におけるドラム式洗濯機は、洗濯槽または水槽に給水する給水部と、駆動部の回転数を検知する回転数検知部を備える。制御部は、給水部を動作して給水することにより洗濯物が含水し、振動検知部により検知する振動の大きさが最大となる回転数で駆動部を動作させ、布質検知部は、回転数におけるトルク変動の大きさから洗濯物の布質を検知するようにしたものである。 Further, the drum type washing machine in the present embodiment includes a water supply unit that supplies water to the washing tub or the water tub, and a rotation speed detection unit that detects the rotation speed of the drive unit. The control unit operates the water supply unit to supply water to the laundry so that the laundry contains water, and the drive unit is operated at a rotation speed that maximizes the magnitude of vibration detected by the vibration detection unit. The cloth quality of the laundry is detected from the magnitude of the torque fluctuation in the number.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させる。つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができる。したがって、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
　また、本実施の形態におけるドラム式洗濯機は、制御部は、給水開始後に洗濯槽を所定回転数で所定時間回転させる工程を行い、所定回転数を変化させて、振動検知部により検知する振動の大きさが最大となる回転数を決定するものである。 Further, in the drum type washing machine in the present embodiment, the control unit performs a process of rotating the washing tub at a predetermined rotation speed for a predetermined time after the start of water supply, and changes the predetermined rotation speed to detect vibration detected by the vibration detection unit. This determines the number of rotations at which the size of is the maximum.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させる。つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができる。したがって、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit is operated so that That is, the laundry can be knocked down with the maximum acceleration from the uppermost part of the rotating washing tub toward the lowermost part (the bottom of the washing tub). Therefore, by extracting the maximum amount of torque fluctuation (variation width) according to the fabric quality (water absorption), the laundry is often made of a material with high water absorption or low water absorption. The cloth quality of the material can be easily and accurately detected.
　また、本実施の形態におけるドラム式洗濯機は、布質検知部は、振動検知部により検知する振動の大きさが最大となる回転数におけるトルク変動の大きさが所定のトルク変動の大きさよりも大きい場合に、洗濯物は高吸水性の繊維の割合が多いと判断するものである。 Further, in the drum type washing machine according to the present embodiment, the cloth quality detection unit is configured such that the magnitude of the torque fluctuation at the rotational speed at which the magnitude of the vibration detected by the vibration detection part is the maximum is larger than the predetermined torque fluctuation. When the size is large, the laundry is judged to have a high proportion of highly water-absorbing fibers.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させ、つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができ、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub). By maximizing the magnitude (variation range) of torque fluctuation according to the cloth, whether the laundry is often made of material with high water absorption or whether it is made of material with low water absorption Quality can be detected easily and accurately.
　また、本実施の形態におけるドラム式洗濯機は、布質検知部は、駆動部の動作開始から所定時間経過以降のトルク変動の大きさにより布質を判断するものである。 Further, in the drum type washing machine according to the present embodiment, the cloth quality detection unit determines the cloth quality based on the magnitude of the torque fluctuation after the elapse of a predetermined time from the start of the operation of the driving unit.
　このような構成によって、駆動部の動作開始直後でトルク値が安定しない区間はトルク変動検知をキャンセルし、所定時間経過後にトルク値が安定した状態でのトルク変動に基づいて布質の判定を行うことができ、布質判定の精度を向上することができる。 With such a configuration, the torque fluctuation detection is canceled in a section where the torque value is not stable immediately after the operation of the drive unit is started, and the cloth quality is determined based on the torque fluctuation in a state where the torque value is stable after a predetermined time has elapsed. It is possible to improve the accuracy of the cloth quality determination.
　また、本実施の形態におけるドラム式洗濯機は、振動検知部が、少なくとも一つの加速度センサを有し、水槽の上下方向、左右方向、前後方向のうちの少なくとも一つの方向の振動を検知し、検知した方向毎の加速度の総和を出力するものである。 Further, in the drum type washing machine in the present embodiment, the vibration detection unit has at least one acceleration sensor, and detects vibration in at least one of the vertical direction, the horizontal direction, and the front-rear direction of the water tank, The sum of accelerations in each detected direction is output.
　このような構成によって、洗濯物が洗濯槽内に偏っている場合にでも、加速度センサの高速な応答性により、常に振動検知部により検知する振動の大きさが最大になるよう駆動部を調整することができる。これにより、回転する洗濯槽の最上部から最下部に向かい常に洗濯物に最大の加速度をつけて叩き落とすことできる。 With such a configuration, even when the laundry is biased in the washing tub, the drive unit is adjusted so that the magnitude of vibration detected by the vibration detection unit is always maximized by the high-speed response of the acceleration sensor. be able to. As a result, the laundry can always be struck down with the maximum acceleration from the top to the bottom of the rotating washing tub.
　また、本実施の形態におけるドラム式洗濯機は、制御部が、駆動部をベクトル制御するように構成され、トルク変動検知部は、制御部が駆動部をベクトル制御するときのｑ軸電流に基づいてトルク変動の大きさを検知するものである。 In addition, the drum type washing machine in the present embodiment is configured such that the control unit performs vector control of the drive unit, and the torque fluctuation detection unit is based on the q-axis current when the control unit performs vector control of the drive unit. Thus, the magnitude of torque fluctuation is detected.
　このような構成によって、駆動部をベクトル制御により回転制御するように構成し、ベクトル制御において得られるｑ軸電流に基づいて駆動部のトルク変動の大きさを検知するように構成したので、トルク変動の検知精度を更に向上することができ、布質判定の精度をより一層向上することができる。 With this configuration, the drive unit is configured to be rotationally controlled by vector control, and is configured to detect the magnitude of torque variation of the drive unit based on the q-axis current obtained in vector control. Detection accuracy can be further improved, and the accuracy of the cloth quality determination can be further improved.
　また、本実施の形態におけるドラム式洗濯機は、洗濯槽内の洗濯物の量を検知する布量検知部を備え、制御部は、布量検知部の信号に基づいて布質を判断するトルク変動の大きさのしきい値を補正するようにしたものである。 The drum-type washing machine in the present embodiment includes a cloth amount detection unit that detects the amount of laundry in the washing tub, and the control unit is a torque that determines the cloth quality based on a signal from the cloth amount detection unit. The threshold value of the magnitude of fluctuation is corrected.
　このような構成によって、洗濯物の量が多い場合は、布質によるトルク変動の幅がより大きくなるため、布質の判定しきい値を補正することで布量に影響を受けずに良く布質を検知できるようになる。 With such a configuration, when the amount of laundry is large, the width of torque fluctuation due to the cloth quality becomes larger. Therefore, by correcting the cloth quality judgment threshold value, the cloth quantity can be improved without being affected by the cloth quantity. Quality can be detected.
　次に、洗い工程が終われば、排水弁８ｂが開かれ、水槽３内の洗浄水が排水管８ａと排水フィルタ８ｃを通過して機外に排水される。以下すすぎ工程、脱水工程を行い洗濯運転は終了する。 Next, when the washing process is finished, the drain valve 8b is opened, and the wash water in the water tank 3 passes through the drain pipe 8a and the drain filter 8c and is drained outside the apparatus. Thereafter, the rinsing process and the dehydrating process are performed, and the washing operation is completed.
　すなわち、制御部１１ａは洗濯物の布質が吸水性の高い繊維から構成される割合が大きいと判定すると、高吸水性である布質に応じて、すすぎ工程および脱水工程における脱水時間を増やす方向に変更する。具体的には、すすぎ工程および脱水工程における脱水時間を、例えば３０秒増やして十分な脱水性能を確保する。 That is, when the control unit 11a determines that the ratio of the laundry cloth having a high water absorption property is large, the controller 11a increases the dehydration time in the rinsing process and the dehydration process in accordance with the high water absorption cloth. Change to Specifically, the dehydration time in the rinsing process and the dehydration process is increased by, for example, 30 seconds to ensure sufficient dewatering performance.
　一方、制御部１１ａは洗濯物の布質が吸水性の低い繊維から構成される割合が大きいと判定すると、低吸水性である布質に応じて、すすぎ工程および脱水工程における脱水時間を減らす方向に変更する。具体的には、すすぎ工程および脱水工程における脱水時間を脱水性能に影響を与えない程度、例えば３０秒減らす設定とする。 On the other hand, if the control unit 11a determines that the ratio of the cloth quality of the laundry composed of fibers having low water absorption is large, the direction of reducing the dehydration time in the rinsing process and the dehydration process according to the cloth quality having low water absorption. Change to Specifically, the dehydration time in the rinsing process and the dehydration process is set to a value that does not affect the dewatering performance, for example, 30 seconds.
　以下、本発明の実施の形態１におけるドラム式洗濯機における脱水工程の動作を説明する。 Hereinafter, the operation of the dehydration process in the drum type washing machine according to Embodiment 1 of the present invention will be described.
　図６に示すように、本発明の実施の形態１におけるドラム式洗濯機では、駆動部としてのモータ６により洗濯槽である回転ドラム４を回転させ（Ｓ１）、回転ドラム４の回転数をモータ６の制御により行う（Ｓ２）。回転ドラム４の回転に伴う水槽３の振動を振動検知部１６が検知し、その振動が最大であるか否かを判断し（Ｓ３）、その振動が最大ではないと判断するとモータ６を制御し、回転ドラム４の回転数を変更する。 As shown in FIG. 6, in the drum type washing machine according to the first embodiment of the present invention, the rotating drum 4 that is the washing tub is rotated by the motor 6 as the driving unit (S1), and the rotation number of the rotating drum 4 is adjusted to the motor. 6 (S2). The vibration detector 16 detects the vibration of the water tank 3 accompanying the rotation of the rotating drum 4 and determines whether or not the vibration is maximum (S3). If it is determined that the vibration is not maximum, the motor 6 is controlled. The rotational speed of the rotating drum 4 is changed.
　水槽３の振動が最大であると判断されると（Ｓ３のＹＥＳ）、制御部１１ａは、そのときのトルクの大きさをモータ電流検知部１７によって検知する。トルク変動算出部１１ｃによってトルク変動幅（トルク変動の大きさ）が第１の所定値Ａより大きいと判断した場合は（Ｓ４のＹＥＳ）、すすぎ工程および／または脱水工程における脱水時間を例えば３０秒増やして十分な脱水性能を確保する（Ｓ５）。 When it is determined that the vibration of the water tank 3 is maximum (YES in S3), the control unit 11a detects the magnitude of the torque at that time by the motor current detection unit 17. When the torque fluctuation calculation unit 11c determines that the torque fluctuation range (torque fluctuation magnitude) is larger than the first predetermined value A (YES in S4), the dehydration time in the rinsing process and / or the dehydration process is, for example, 30 seconds. Increase to ensure sufficient dewatering performance (S5).
　また、トルク変動算出部１１ｃによってトルク変動幅が第１の所定値Ａより小さく、第１の所定値より小さい値である第２の所定値Ｂよりも大きいと判断した場合は（Ｓ４のＮＯ、Ｓ６のＹＥＳ）、すすぎ工程および／または脱水工程における脱水時間を脱水性能に影響を与えない程度、例えば３０秒減らす設定とする（Ｓ７）。 When the torque fluctuation calculation unit 11c determines that the torque fluctuation range is smaller than the first predetermined value A and larger than the second predetermined value B, which is a value smaller than the first predetermined value (NO in S4, (YES in S6), the dehydration time in the rinsing step and / or dehydration step is set to a value that does not affect the dewatering performance, for example, 30 seconds (S7).
　さらに、トルク変動算出部１１ｃによってトルク変動幅が第１の所定値Ａより小さく、第２の所定値Ｂよりも小さいと判断した場合は（Ｓ６のＮＯ）、すすぎ工程および／または脱水工程の設定内容をそのままにし、脱水時間を変更しない設定とする（Ｓ８）。 Furthermore, when the torque fluctuation calculation unit 11c determines that the torque fluctuation width is smaller than the first predetermined value A and smaller than the second predetermined value B (NO in S6), the setting of the rinsing process and / or the dehydrating process is performed. The content is left as it is, and the dehydration time is not changed (S8).
　次に、洗い工程が所定時間行われると（Ｓ９のＹＥＳ）、洗い工程は終了する。 Next, when the washing process is performed for a predetermined time (YES in S9), the washing process ends.
　洗い工程が終了すると、図７に示すように、すすぎ工程を開始する。まず、排水弁８ｂを動作して、水槽３内の水を排水する（Ｓ１０）。続いて、洗濯物から洗浄水や汚れを取り除くために、脱水を行う（Ｓ１１）。 When the washing process is completed, the rinsing process is started as shown in FIG. First, the drain valve 8b is operated to drain the water in the water tank 3 (S10). Subsequently, dehydration is performed to remove washing water and dirt from the laundry (S11).
　吸水性の高い衣類はジーンズやトレーナーのように、水を含むと固く、多めの水量でパワフルに撹拌しないと繊維内および繊維間に浸透した洗浄水を振り解くことができない。よって、脱水回転の時間を増やす方向に変更することによって、脱水性能を高める。 Cloth with high water absorption, like jeans and trainers, is hard when it contains water, and the washing water that has penetrated into and between the fibers cannot be shaken unless the water is powerfully stirred with a large amount of water. Therefore, the dewatering performance is improved by changing the direction to increase the time of the dewatering rotation.
　一方、吸水性の低い衣類は、ジャージのように、水を含んでも柔らかく、綿衣類に比べて１０倍以上も繊維間が広い。このため、脱水時間を短くしても十分な脱水性能得られる。よって、吸水性が高い繊維から構成される割合が大きい場合に比べて、脱水時間を減らす方向に変更することによって、脱水性能を確保しつつ、節水や時短、節電など、省エネルギー性能を向上させる。 On the other hand, clothing with low water absorption, like jerseys, is soft even when it contains water, and the space between fibers is more than 10 times that of cotton clothing. For this reason, even if the dehydration time is shortened, sufficient dewatering performance can be obtained. Therefore, the energy saving performance such as water saving, time saving, power saving, etc. is improved while ensuring the dehydrating performance by changing the direction to reduce the dehydrating time as compared with the case where the ratio of fibers composed of high water absorption is large.
　布質検知時に設定した、すすぎ工程における脱水時間が終了すると（Ｓ１２のＹＥＳ）、排水弁８ｂを閉じ（Ｓ１３）、給水を開始する（Ｓ１４）。その後、すすぎ撹拌を行う（Ｓ１５）。すすぎ時間が終了すると（Ｓ１６のＹＥＳ）、すすぎ工程は終了する。ここで、すすぎ工程が２回以上設定されている場合には、Ｓ１０～Ｓ１６が繰り返えされる。 When the dehydration time in the rinsing process set at the time of cloth quality detection is completed (YES in S12), the drain valve 8b is closed (S13), and water supply is started (S14). Thereafter, rinsing and stirring are performed (S15). When the rinsing time ends (YES in S16), the rinsing process ends. If the rinsing process is set twice or more, S10 to S16 are repeated.
　続いて、図８に示すように、脱水工程を開始する。水槽３内の水を排水し（Ｓ２０）、回転ドラム４を回転させて脱水を行う（Ｓ２１）。布質検知時に設定した、脱水工程における脱水時間が終了すると（Ｓ２２のＹＥＳ）、脱水工程は終了する。 Subsequently, as shown in FIG. 8, the dehydration process is started. Water in the water tank 3 is drained (S20), and the rotating drum 4 is rotated to perform dehydration (S21). When the dehydration time in the dehydration process set at the time of cloth quality detection ends (YES in S22), the dehydration process ends.
　なお、上記において、所定値Ａ、Ｂを決定するのに用いた洗濯物量によるトルク最大変動幅を示す図（図４）は、綿と、化学繊維と、綿および化学繊維の混合との、３種類の吸水特性により設定水位のランク決定をしているが、これに限られるものではなく、綿および化学繊維の混合において、その混合比率を１：２、１：１、２：１と変化させるなどして、より細かくランク分けしてもよい。これにより、洗濯物が吸水性の高い繊維から構成される割合が多いのか、吸水性の低い繊維から構成される割合が多いのかを細かく、すなわち、おおよその割合を検知することができる。 In addition, in the above, the figure (FIG. 4) which shows the torque maximum fluctuation | variation range by the amount of the laundry used for determining predetermined value A and B is 3 of cotton, a chemical fiber, and the mixture of cotton and a chemical fiber. The set water level is determined according to the type of water absorption characteristics, but this is not restrictive. In the mixing of cotton and chemical fibers, the mixing ratio is changed to 1: 2, 1: 1, 2: 1. For example, you may rank more finely. Thereby, it is possible to detect in detail whether the laundry is composed of fibers having high water absorption or is composed of fibers having low water absorption, that is, an approximate ratio.
　なお、本実施の形態で説明した各構成は、ＣＰＵ（またはマイコン）、ＲＡＭ、ＲＯＭ、記憶・記録装置、Ｉ／Ｏなどを備えた電気・情報機器、コンピュータ、サーバ等のハードリソースを協働させるプログラムの形態で実施してもよい。プログラムの形態であれば、磁気メディアや光メディアなどの記録媒体に記録、もしくはインターネットなどの通信回線を用いて配信することで新しい機能の配布・更新やそのインストール作業が簡単にできる。 Each configuration described in this embodiment cooperates with hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like. You may implement with the form of the program to be made. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media, or distributing them using a communication line such as the Internet.
　また、洗い工程、すすぎ工程、脱水工程を逐次制御する制御部が、布質検知部による布質に応じて脱水工程における脱水回転の時間を変更するものである。 In addition, the control unit that sequentially controls the washing process, the rinsing process, and the dehydration process changes the dehydration rotation time in the dehydration process according to the fabric quality by the fabric quality detection unit.
　このように、布質検知の結果に応じて、脱水工程における脱水回転の時間を変更することで、布質がどのようなものであっても、その特性に応じて脱水回転の時間を設定できるため、特定の時間内での省エネルギー性に優れた条件において、脱水性能を向上させることが可能となる。 In this way, by changing the dehydration rotation time in the dehydration process according to the result of the cloth quality detection, it is possible to set the dehydration rotation time according to the characteristics regardless of the cloth quality. For this reason, it is possible to improve the dehydration performance under conditions excellent in energy saving within a specific time.
　また、本実施の形態におけるドラム式洗濯機は、洗い工程、すすぎ工程、脱水工程を逐次制御する制御部が、布質検知部による布質に応じてすすぎ工程における脱水回転の時間を変更するものである。 In the drum type washing machine in the present embodiment, the controller that sequentially controls the washing process, the rinsing process, and the dewatering process changes the time of the dehydration rotation in the rinsing process according to the cloth quality by the cloth quality detection unit. It is.
　このように、布質検知の結果に応じて、すすぎ工程における脱水回転の時間を変更することで、布質がどのようなものであっても、その特性に応じて脱水回転の時間を設定できるため、特定の時間内での省エネルギー性に優れた条件において、脱水性能を向上させることが可能となる。 As described above, by changing the dewatering rotation time in the rinsing process according to the result of the cloth quality detection, it is possible to set the dewatering rotation time according to the characteristics regardless of the cloth quality. For this reason, it is possible to improve the dehydration performance under conditions excellent in energy saving within a specific time.
　また、本実施の形態におけるドラム式洗濯機は、洗濯槽または水槽に給水する給水部と、駆動部の回転数を検知する回転数検知部を備え、制御部は、給水部を動作して給水することにより洗濯物が含水し、振動検知部により検知する振動の大きさが最大となる回転数で駆動部を動作させ、布質検知部は、回転数におけるトルク変動の大きさから洗濯物の布質を検知するようにしたものである。 In addition, the drum type washing machine in the present embodiment includes a water supply unit that supplies water to the washing tub or the water tub, and a rotation number detection unit that detects the rotation number of the drive unit, and the control unit operates the water supply unit to supply water. Then, the laundry contains water and the drive unit is operated at a rotation speed at which the magnitude of vibration detected by the vibration detection unit is maximized. The cloth quality is detected.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させ、つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができ、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub). By maximizing the magnitude (variation range) of torque fluctuation according to the cloth, whether the laundry is often made of material with high water absorption or whether it is made of material with low water absorption Quality can be detected easily and accurately.
　また、本実施の形態におけるドラム式洗濯機は、制御部は、給水開始後に洗濯槽を所定回転数で所定時間回転させる工程を行い、所定回転数を変化させて、振動検知部により検知する振動の大きさが最大となる回転数を決定するものである。 Further, in the drum type washing machine in the present embodiment, the control unit performs a process of rotating the washing tub at a predetermined rotation speed for a predetermined time after the start of water supply, and changes the predetermined rotation speed to detect vibration detected by the vibration detection unit. This determines the number of rotations at which the size of is the maximum.
　このような構成によって、布質に関係なくおよそ洗濯物の重量に応じた一定の水量を洗濯槽内に給水して洗濯物に吸水させた後、振動検知部により検知する振動の大きさが最大になるよう駆動部を動作させ、つまり、回転する洗濯槽の最上部から最下部（洗濯槽底部）に向かい洗濯物に最大の加速度をつけて叩き落とすことができ、布質（吸水性）に応じたトルク変動の大きさ（変動幅）を最大限に引き出すことで、洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているのかの布質を容易にかつ精度良く検知できる。 With such a configuration, the magnitude of vibration detected by the vibration detection unit is maximized after a certain amount of water corresponding to the weight of the laundry is supplied into the washing tub and absorbed by the laundry regardless of the fabric quality. The drive unit can be operated so that the laundry can be struck with maximum acceleration from the uppermost part of the rotating washing tub to the lowermost part (the bottom of the washing tub). By maximizing the magnitude (variation range) of torque fluctuation according to the cloth, whether the laundry is often made of material with high water absorption or whether it is made of material with low water absorption Quality can be detected easily and accurately.
　また、本実施の形態におけるドラム式洗濯機は、洗濯物を構成する素材として吸水性の高い繊維と吸水性の低い繊維との割合を判断するものである。 Also, the drum type washing machine in the present embodiment determines the ratio of fibers having high water absorption and fibers having low water absorption as materials constituting the laundry.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が大きい」、あるいは「吸水性の低い素材で構成されている割合が大きい」といった判断が適切に行うことができ、その布質特性に応じたすすぎ内容を設定することですすぎ効果を最大にさせることが可能となる。 With such a configuration, the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”. Such a determination can be made appropriately, and the rinse effect can be maximized by setting the rinse contents according to the fabric characteristics.
　また、本実施の形態におけるドラム式洗濯機は、布質検知部により洗濯槽内の洗濯物が吸水性の低い繊維から構成される割合が大きいと検知された場合、割合が大きくなるほど、脱水回転時の時間を短くするものである。 Further, in the drum type washing machine in the present embodiment, when the cloth quality detection unit detects that the laundry in the washing tub is composed of fibers with low water absorption, the dewatering rotation increases as the ratio increases. It shortens the time of time.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が大きい」、あるいは「吸水性の低い素材で構成されている割合が大きい」といった判断が決定された後に、脱水回転時の時間を調整することができる。このため、布質特性に応じた脱水時間を設定することができるので、特定の時間内で脱水性能を維持しつつ、省エネルギー性の向上した脱水運転を行うことができる。 With such a configuration, the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”. After such a determination is determined, the time during dehydration rotation can be adjusted. For this reason, since the dehydration time according to the cloth characteristic can be set, the dehydration operation with improved energy saving can be performed while maintaining the dewatering performance within a specific time.
　（実施の形態２）
　以下、本発明の実施の形態２について、図面を参照しながら説明する。 (Embodiment 2)
Embodiment 2 of the present invention will be described below with reference to the drawings.
　なお、本発明の実施の形態２におけるドラム式洗濯機についても布質検知の方法、布質検知を行うための構成要素および洗濯工程については、本発明の実施の形態１と同じであるので、説明を省略する。 Since the drum-type washing machine according to the second embodiment of the present invention is the same as the first embodiment of the present invention, the method for detecting the cloth quality, the components for performing the cloth quality detection, and the washing process are the same. Description is omitted.
　本発明の実施の形態２におけるドラム式洗濯機の制御部１１ａは、脱水工程における最終脱水動作の終了後に、布質検知部１１ｂによる布質に応じた撹拌動作を行う。より詳細には、制御部１１ａは洗濯物の布質が低吸水性から構成される割合が大きいと判定すると、最終脱水を終えた後にドラム内周壁に張りついた洗濯物を剥がす目的で行う撹拌動作（布はがし撹拌）の設定時間を減らす方向に変更する。また、回転ドラム４の正転と反転を含む撹拌動作において、反転する回数を、布質に応じて減らす方向に変更する。 The control unit 11a of the drum type washing machine in the second embodiment of the present invention performs a stirring operation according to the fabric quality by the fabric quality detection unit 11b after the final dehydration operation in the dehydration process is completed. More specifically, when the control unit 11a determines that the ratio of the cloth quality of the laundry from low water absorption is large, the stirring performed for the purpose of peeling the laundry stuck to the inner peripheral wall of the drum after the final dehydration is completed. Change the direction to reduce the set time for operation (cloth peeling and stirring). Moreover, in the stirring operation including normal rotation and reversal of the rotating drum 4, the number of reversals is changed in a direction of decreasing according to the cloth quality.
　これによって、布質が低吸水性である場合には、その特性に応じて最低限の布はがし動作を行い、最終脱水を終えた後、洗濯物が互いに絡まずほぐれて、使用者が洗濯物を取り出しやすい状態にすることが可能である。さらに、ほぐれた状態の濡れた洗濯物を撹拌し続けることがないので、洗濯物同士が絡むことによるシワの発生を低減させることができる。さらに、不要な布はがし動作を行わずにすむので、洗濯物の布傷みを低減することができ、さらに省エネルギー性に優れた運転を実現することができる。 As a result, when the fabric quality is low in water absorption, the minimum cloth peeling operation is performed according to the characteristics, and after the final dehydration is finished, the laundry is untangled and the user can loosen the laundry. Can be easily removed. Furthermore, since it does not continue stirring the wet laundry in the loosened state, it is possible to reduce the occurrence of wrinkles due to the tangling of the laundry. Furthermore, since unnecessary cloth peeling operation is not required, it is possible to reduce the cloth damage of the laundry, and it is possible to realize an operation excellent in energy saving.
　すなわち、洗濯物が吸水性の高い繊維から構成される割合が大きい場合には、布はがしが従来の設定通り行われる。布はがし撹拌動作の時間および、回転ドラム４の反転を行う回数を従来どおりにして削減しないことで、最大限の撹拌動作を行い、布はがしの効果を得るようにする。そして、洗濯物が吸水性の低い繊維から構成される割合が大きい場合には、布はがし撹拌動作の時間および回転ドラム４の反転動作を削減または無しにする。 That is, when the proportion of the laundry composed of fibers having high water absorption is large, the cloth is peeled off as in the conventional setting. By not reducing the time for the cloth peeling stirring operation and the number of times of rotating the rotating drum 4 as usual, the maximum stirring operation is performed and the cloth peeling effect is obtained. When the proportion of the laundry composed of fibers having low water absorption is large, the time for the cloth peeling and stirring operation and the reversing operation of the rotating drum 4 are reduced or eliminated.
　図９に示すように、本発明の実施の形態２におけるドラム式洗濯機では、駆動部としてのモータ６により洗濯槽である回転ドラム４を回転させ（Ｓ１）、回転ドラム４の回転数をモータ６の制御により行う（Ｓ２）。回転ドラム４の回転に伴う水槽３の振動を振動検知部１６が検知し、その振動が最大であるか否かを判断し（Ｓ３）、その振動が最大ではないと判断するとモータ６を制御し、回転ドラム４の回転数を変更する。 As shown in FIG. 9, in the drum type washing machine according to the second embodiment of the present invention, the rotating drum 4 that is a washing tub is rotated by the motor 6 as the drive unit (S1), and the rotational speed of the rotating drum 4 is adjusted to the motor. 6 (S2). The vibration detector 16 detects the vibration of the water tank 3 accompanying the rotation of the rotating drum 4 and determines whether or not the vibration is maximum (S3). If it is determined that the vibration is not maximum, the motor 6 is controlled. The rotational speed of the rotating drum 4 is changed.
　水槽３の振動が最大であると判断されると（Ｓ３）、トルク変動算出部１１ｃによってトルク変動幅が第１の所定値Ａより大きいと判断した場合は（Ｓ４のＹＥＳ）、吸水性の高い繊維から構成される割合が大きく、布はがし撹拌の設定を変更しない（Ｓ５）。すなわち、制御部１１ａは、設定通りの布はがし撹拌を行う。 When it is determined that the vibration of the water tank 3 is maximum (S3), if the torque fluctuation calculation unit 11c determines that the torque fluctuation range is greater than the first predetermined value A (YES in S4), the water absorption is high. The ratio of fibers is large, and the cloth peeling and stirring setting is not changed (S5). That is, the controller 11a performs cloth peeling and stirring as set.
　また、トルク変動算出部１１ｃによってトルク変動幅が第１の所定値Ａより小さく、第１の所定値より小さい値である第２の所定値Ｂよりも大きいと判断した場合は（Ｓ４のＮＯ、Ｓ６のＹＥＳ）、布はがし撹拌の動作時間を若干減らす（Ｓ７）。このときの削減時間は、例えば３０秒程度である。また、それとともに、回転ドラム４の反転回数を、設定回数の半分に減らす。 When the torque fluctuation calculation unit 11c determines that the torque fluctuation range is smaller than the first predetermined value A and larger than the second predetermined value B, which is a value smaller than the first predetermined value (NO in S4, S6: YES), the cloth peeling and stirring operation time is slightly reduced (S7). The reduction time at this time is, for example, about 30 seconds. At the same time, the number of rotations of the rotating drum 4 is reduced to half of the set number.
　さらに、トルク変動算出部１１ｃによってトルク変動幅が第１の所定値より小さく、第２の所定値Ｂよりも小さいと判断した場合は（Ｓ６のＮＯ）、吸水性の低い繊維から構成される割合が大きいと判断し、布はがし撹拌動作を行わないように設定する（Ｓ８）。 Furthermore, when the torque fluctuation calculation unit 11c determines that the torque fluctuation width is smaller than the first predetermined value and smaller than the second predetermined value B (NO in S6), the ratio composed of fibers with low water absorption Is determined to be large, and setting is made so that the cloth is not peeled off and stirred (S8).
　その後、制御部１１ａは、洗い行程を終え（Ｓ９）、すすぎ行程（Ｓ１０）を経て、脱水行程（Ｓ１１）にて脱水動作を終えて回転ドラム４を停止する。その後、布はがし工程が設定されていれば（Ｓ１２のＹＥＳ）、布はがし工程が行われる（Ｓ１３）。布はがし工程では、例えば、ドラムを「５秒間右回転、１秒停止、５秒間左回転、１秒停止」のサイクルを設定時間だけ繰り返す動作を行う（Ｓ１４）。一方、吸水性の低い洗濯物が多く、布はがし工程が設定されていなければ（Ｓ１２のＮＯ）、そのまま洗濯運転が終了する。 Thereafter, the controller 11a finishes the washing process (S9), passes through the rinsing process (S10), finishes the dehydrating operation in the dehydrating process (S11), and stops the rotating drum 4. Thereafter, if the cloth peeling process is set (YES in S12), the cloth peeling process is performed (S13). In the cloth peeling process, for example, an operation of repeating a cycle of “5 seconds right rotation, 1 second stop, 5 seconds left rotation, 1 second stop” for a set time is performed (S14). On the other hand, if there are many laundry with low water absorption and the cloth peeling process is not set (NO of S12), a washing operation will be complete | finished as it is.
　なお、本実施の形態２では綿と、化学繊維と、綿および化学繊維の混合との、３種類の吸水特性により設定水位のランク決定をしているが、これに限られるものではなく、化学繊維としてナイロンなどの他の繊維も用いてランク分けを細かくしてもよい。また、綿および化学繊維の混合において、その混合比率を１：２、１：１、２：１と変化させるなどして、より細かくランク分けしてもよい。 In the second embodiment, the rank of the set water level is determined by three types of water absorption characteristics of cotton, chemical fiber, and a mixture of cotton and chemical fiber. However, the present invention is not limited to this. Other fibers such as nylon may also be used as the fiber to refine the ranking. Further, in the mixing of cotton and chemical fibers, the mixing ratio may be changed to 1: 2, 1: 1, 2: 1, or the like, and the ranks may be more finely classified.
　ここで、布質に応じた布はがし動作の設定増減について補足する。上記したように、洗濯物は大別すると綿繊維と化学繊維に分けられる。綿繊維は化学繊維に比べて水を含みやすく、形成する繊維自身が膨張することで繊維間が密になる。よって、変形しにくくなるため、その状態で脱水行程にて遠心力をかけると繊維内側や繊維間の水分が脱水される。しかし、一度膨張した繊維は縮まることなく、かつ、遠心力をかけることにより回転ドラム４内面壁に押し固められるため、なかなか引きはがすのが難しい。よって小刻みに回転ドラム４の左右回転（空転）を長時間繰り返さなければならない。一方で、化学繊維が多い場合は、繊維自体は水をあまり吸収せず繊維間もかなり広いため、脱水を行っても回転ドラム４の内面壁に押し固められることもないので、布はがし工程を行う必要がない。そればかりか、化学繊維ばかりの状態で、不要な布はがし撹拌動作（空転動作）をいたずらに継続すると、例えば、ジャージのジッパーなどがドラム内を舞うことで他の衣類にひっかかったりして衣類同士を痛める事にもなりかねない。このため、洗濯物が化学繊維ばかりの場合は不要な布はがし撹拌は行わない。 補足 Here, supplementary explanation will be made on the setting increase / decrease of the cloth peeling operation according to the cloth quality. As described above, laundry is roughly divided into cotton fibers and chemical fibers. Cotton fibers are more likely to contain water than chemical fibers, and the fibers themselves form a swell to close the fibers. Therefore, since it becomes difficult to deform | transform, when a centrifugal force is applied in the dehydration process in that state, the water | moisture content inside a fiber and between fibers will be dehydrated. However, since the fibers once expanded are not shrunk and are pressed against the inner wall of the rotating drum 4 by applying a centrifugal force, it is difficult to peel off the fibers. Therefore, the left and right rotation (idling) of the rotating drum 4 must be repeated for a long time. On the other hand, when there are a lot of chemical fibers, the fibers themselves do not absorb much water and the spaces between the fibers are quite wide, so even if dehydration is performed, the fibers are not pressed against the inner wall of the rotating drum 4, so the cloth peeling process is performed. There is no need to do it. In addition, when the unnecessary cloth peeling and idling operation (idling operation) continues unnecessarily in the state of only chemical fibers, for example, jersey zippers may be caught in other clothes by dancing inside the drum. It can also hurt you. For this reason, when the laundry is composed of only chemical fibers, unnecessary cloths are not peeled off and stirred.
　以上のように、本実施の形態によれば、運転開始直後に洗濯物の重量を検知した後、洗い行程にて洗濯物の重量に応じた水量を注水し、さらにその注水過程において投入されている洗濯物が吸水性の高い素材で構成されているものが多いのか、吸水性の低い素材で構成されているものが多いのかを判定することができる。その布質検知結果に応じて、最終脱水を終えた段階での洗濯槽に洗濯物が貼りついているか否かを推察して布はがし動作の内容を変更する。その結果、布質がどのようなものであっても、その特性に応じて最低限の布はがし動作を行うことができるので、最終脱水を終えた後の洗濯物が互いに絡まずほぐれて取り出しやすい状態にすることが可能である。 As described above, according to the present embodiment, after detecting the weight of the laundry immediately after the start of operation, the amount of water according to the weight of the laundry is injected in the washing process, and is further introduced in the water injection process. It can be determined whether there are many items of laundry that are made of a material with high water absorption or many items of material that have a low water absorption. According to the cloth quality detection result, it is inferred whether the laundry is stuck to the washing tub at the stage where the final dehydration is finished, and the contents of the cloth peeling operation are changed. As a result, it is possible to perform a minimum cloth peeling operation depending on the characteristics of whatever the quality of the fabric, so that the laundry after final dehydration is easily tangled and taken out easily. It is possible to make a state.
　なお、本実施の形態で説明した各構成は、ＣＰＵ（またはマイコン）、ＲＡＭ、ＲＯＭ、記憶・記録装置、Ｉ／Ｏなどを備えた電気・情報機器、コンピュータ、サーバ等のハードリソースを協働させるプログラムの形態で実施してもよい。プログラムの形態であれば、磁気メディアや光メディアなどの記録媒体に記録、もしくはインターネットなどの通信回線を用いて配信することで新しい機能の配布・更新やそのインストール作業が簡単にできる。 Each configuration described in this embodiment cooperates with hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like. You may implement with the form of the program to be made. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media, or distributing them using a communication line such as the Internet.
　本実施の形態におけるドラム式洗濯機は、洗い工程、すすぎ工程、脱水工程の各行程を逐次制御する制御部が、脱水工程における最終脱水動作の終了後に、布質検知部による布質に応じた撹拌動作を行うものである。 In the drum-type washing machine in the present embodiment, the control unit that sequentially controls the steps of the washing process, the rinsing process, and the dehydration process is performed according to the cloth quality by the cloth quality detection unit after the final dehydration operation in the dehydration process is completed. A stirring operation is performed.
　このような構成によって、布質検知部の結果に応じて、最終脱水を終えた段階での洗濯槽に洗濯物が貼りついているか否かを推察して布はがし動作の内容を変更することで、布質がどのようなものであっても、その特性に応じて最低限の布はがし動作を行うことができる。よって、最終脱水を終えた後、洗濯物が互いに絡まずほぐれて、使用者が洗濯物を取り出しやすい状態にすることが可能である。さらに、不要な布はがし動作を行わずにすむので、洗濯物の布傷みを低減することがでる。さらに、ほぐれた状態の濡れた洗濯物を撹拌し続けることがないので、洗濯物同士が絡むことによるシワの発生を低減させることができる。さらに、不要な布はがし動作を行わないので、省エネルギー性に優れた運転を実現することができる。 By such a configuration, according to the result of the cloth quality detection unit, by inferring whether the laundry is attached to the washing tub at the stage where the final dehydration is finished, by changing the content of the cloth peeling operation, Whatever the quality of the cloth, the minimum cloth peeling operation can be performed according to the characteristics. Therefore, after the final dehydration is finished, the laundry is untangled, and the user can easily take out the laundry. Furthermore, since unnecessary cloth peeling operation is not required, it is possible to reduce the damage of the laundry. Furthermore, since it does not continue stirring the wet laundry in the loosened state, it is possible to reduce the occurrence of wrinkles due to the tangling of the laundry. Furthermore, since unnecessary cloth peeling operation is not performed, the operation | movement excellent in energy saving property is realizable.
　また、本実施の形態におけるドラム式洗濯機は、布質検知部は、洗濯物を構成する素材として吸水性の高い繊維と吸水性の低い繊維との割合を判断するものである。 Further, in the drum type washing machine in the present embodiment, the cloth quality detection unit determines a ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が大きい」、あるいは「吸水性の低い素材で構成されている割合が大きい」といった判断が適切に行うことができ、その布質特性に応じた布はがし行程の内容を設定することができる。よって、最低限の布はがし動作を行うことで最大限の布はがし効果をあげることが可能となるので、省エネルギー性に優れた運転を実現することができる。 With such a configuration, the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”. Such a determination can be appropriately made, and the contents of the cloth peeling process according to the cloth quality characteristics can be set. Therefore, since the maximum cloth peeling effect can be achieved by performing the minimum cloth peeling operation, it is possible to realize an operation with excellent energy saving performance.
　また、本実施の形態におけるドラム式洗濯機は、制御部が、布質検知部により洗濯物が吸水性の低い繊維から構成される割合が大きいと検知した場合、割合が大きくなるほど、最終脱水動作終了後の撹拌動作を行う時間を短くするようにしたものである。 Further, in the drum type washing machine in the present embodiment, when the control unit detects that the ratio of the laundry composed of fibers having low water absorption is large by the cloth quality detection unit, the final dehydration operation increases as the ratio increases. The time for performing the stirring operation after completion is shortened.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が大きい」、あるいは「吸水性の低い素材で構成されている割合が大きい」といった判断が決定された後に、布はがし動作である水なし撹拌動作の時間を調整することができる。よって、その布質特性に応じた布はがし行程の時間を設定することができ、最低限の布はがし動作を行うことで最大限の布はがし効果をあげることが可能となる。 With such a configuration, the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”. After the determination is made, the time for the water-less stirring operation, which is the cloth peeling operation, can be adjusted. Therefore, it is possible to set the time of the cloth peeling process according to the cloth quality characteristics, and it is possible to obtain the maximum cloth peeling effect by performing the minimum cloth peeling operation.
　また、本実施の形態におけるドラム式洗濯機は、最終脱水動作終了後の撹拌動作は正転と反転を含み、制御部が、布質検知部により洗濯物が吸水性の低い繊維から構成される割合が大きいと検知した場合、割合が大きくなるほど、反転を行う回数を少なくするようにしたものである。 Further, in the drum type washing machine according to the present embodiment, the stirring operation after the final dehydration operation includes forward rotation and inversion, and the control unit is configured by the fabric quality detection unit so that the laundry is made of fibers having low water absorption. When it is detected that the ratio is large, the number of inversions is reduced as the ratio increases.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が大きい」、あるいは「吸水性の低い素材で構成されている割合が大きい」といった判断が決定された後に、布はがし動作である水なし撹拌動作の反転回数を調整することができる。よって、その布質特性に応じた布はがし行程の反転回数を設定することで反転動作による布傷みを軽減することができる。 With such a configuration, the laundry that has been thrown in by the cloth quality detection unit “has a large proportion of materials made of materials with high water absorption” or “large proportion of materials made of materials with low water absorption”. After the determination is made, the number of inversions of the waterless stirring operation, which is a cloth peeling operation, can be adjusted. Therefore, by setting the number of times of reversal of the cloth peeling process according to the cloth quality characteristics, it is possible to reduce fabric damage due to the reversing operation.
　また、本実施の形態におけるドラム式洗濯機は、制御部が、布質検知部により洗濯物が吸水性の低い繊維から構成される割合が所定の割合を越える場合、最終脱水動作終了後の撹拌動作を行わないようにしたものである。 Further, in the drum type washing machine in the present embodiment, the control unit performs the stirring after the final dehydration operation is completed when the ratio of the laundry composed of fibers having low water absorption by the cloth quality detection unit exceeds a predetermined rate. The operation is not performed.
　このような構成によって、布質検知部によって、投入された洗濯物が「吸水性の高い素材で構成されている割合が８０％を越える場合」は脱水動作を行っている最中こそ洗濯物が洗濯槽に張り付くが脱水動作を終えた段階では洗濯物が洗濯槽に張り付き続けることもないため、無駄な布はがし行程をせずとも使用者が取り出しやすい状態を提供できる。よって、省エネルギー性に優れた運転を実現することができる。 With such a configuration, when the thrown-in laundry is being dehydrated when the thrown-in laundry is more than 80% by the cloth quality detection unit, Since the laundry does not continue to stick to the washing tub at the stage of sticking to the washing tub but after the dehydrating operation is completed, it is possible to provide a state in which the user can easily take out without performing a wasteful cloth peeling process. Therefore, the driving | operation excellent in energy saving property is realizable.
　本発明にかかる洗濯機は、洗濯物の布質を検知するので、家庭用洗濯機だけでなく、繊維などの洗浄装置や水洗いを主体とする業務用洗浄機や、布質を自動検知して制御する機器にも適用できる。 Since the washing machine according to the present invention detects the cloth quality of the laundry, it automatically detects not only the home washing machine but also a washing apparatus for textiles, a commercial washing machine mainly for washing water, and the cloth quality. It can also be applied to controlled equipment.
　１　　洗濯機本体
　２ａ　　台板
　３　　水槽
　４　　回転ドラム（洗濯槽）
　４ａ　　回転軸
　４ｂ　　撹拌突起
　４ｃ　　周壁
　４ｄ　　背面壁
　４ｅ　　透孔
　４ｆ　　背面開口
　５　　開閉扉
　６　　モータ（駆動部）
　６ａ　　ホール素子（回転数検知部）
　７ａ　　洗剤収容部
　７ｂ　　給水弁（給水部）
　８ａ　　排水管
　８ｂ　　排水弁（排水部）
　８ｃ　　排水フィルタ
　９　　乾燥部
　９ｃ　　送風機
　９ｄ　　送風経路
　９ｅ　　導入口
　９ｆ　　導出口
　９ｇ　　除湿部
　９ｈ　　加熱部
　１０　　水位検知部
　１１　　制御装置
　１１ａ　　制御部
　１１ｂ　　布質検知部
　１１ｃ　　トルク変動算出部
　１１ｄ　　布量検知部
　１１ｅ　　回転数算出部
　１４　　シール材
　１６　　振動検知部
　１７　　モータ電流検知部（トルク変動検知部）
　３０　　循環ポンプ
　３１　　循環水路
　３１ｂ　　吐出側経路
　５１　　噴射口 1 Washing machine body 2a Base plate 3 Water tank 4 Rotating drum (washing tank)
4a Rotating shaft 4b Stirring protrusion 4c Peripheral wall 4d Rear wall 4e Through hole 4f Rear opening 5 Opening / closing door 6 Motor (drive unit)
6a Hall element (rotation speed detector)
7a Detergent storage part 7b Water supply valve (water supply part)
8a Drain pipe 8b Drain valve (drainage section)
8c Drainage filter 9 Drying unit 9c Blower 9d Blower path 9e Inlet 9f Outlet 9g Dehumidifying unit 9h Heating unit 10 Water level detection unit 11 Controller 11a Control unit 11b Cloth quality detection unit 11c Torque fluctuation calculation unit 11d Cloth amount detection unit 11e Rotation Number calculation unit 14 Seal material 16 Vibration detection unit 17 Motor current detection unit (torque fluctuation detection unit)
30 Circulating pump 31 Circulating water channel 31b Discharge side channel 51 Injection port

Claims (10)

  1. 洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、
    前記洗濯槽を収容する水槽と、
    前記水槽の振動を検知する振動検知部と、
    前記洗濯槽を駆動する駆動部と、
    前記駆動部のトルク変動の大きさを検知するトルク変動検知部と、
    洗濯物の布質を検知する布質検知部と、
    前記駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備え、
    前記制御部は、前記振動検知部により検知する振動の大きさが最大となるよう前記駆動部を動作させ、前記布質検知部は、前記振動の大きさが最大となる状態での前記トルク変動の大きさから前記洗濯物の布質を判断し、
    前記制御部は、前記布質検知部による布質に応じて前記脱水工程における脱水回転の時間を変更するドラム式洗濯機。     A laundry tub that accommodates the laundry and is rotatable about a horizontal rotation axis or a rotation axis inclined downward from the front side toward the back side;
    A water tank containing the washing tub;
    A vibration detection unit for detecting the vibration of the water tank;
    A drive unit for driving the washing tub;
    A torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit;
    A cloth quality detection unit for detecting the quality of the laundry,
    A control unit that drives the driving unit and the like to control each step such as a washing step, a rinsing step, and a dehydrating step;
    The control unit operates the driving unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit is configured to change the torque in a state where the magnitude of vibration is maximized. Judge the quality of the laundry from the size of
    The said control part is a drum type washing machine which changes the time of the spin-drying | dehydration rotation in the said spin-drying | dehydration process according to the cloth quality by the said cloth quality detection part.
  2. 洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、
    前記洗濯槽を収容する水槽と、
    前記水槽の振動を検知する振動検知部と、
    前記洗濯槽を駆動する駆動部と、
    前記駆動部のトルク変動の大きさを検知するトルク変動検知部と、
    洗濯物の布質を検知する布質検知部と、
    前記駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備え、
    前記制御部は、前記振動検知部により検知する振動の大きさが最大となるよう前記駆動部を動作させ、前記布質検知部は、前記振動の大きさが最大となる状態での前記トルク変動の大きさから前記洗濯物の布質を判断し、
    前記制御部は、前記布質検知部による布質に応じて前記すすぎ工程における脱水回転の時間を変更するドラム式洗濯機。     A laundry tub that accommodates the laundry and is rotatable about a horizontal rotation axis or a rotation axis inclined downward from the front side toward the back side;
    A water tank containing the washing tub;
    A vibration detection unit for detecting the vibration of the water tank;
    A drive unit for driving the washing tub;
    A torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit;
    A cloth quality detection unit for detecting the quality of the laundry,
    A control unit that drives the driving unit and the like to control each step such as a washing step, a rinsing step, and a dehydrating step;
    The control unit operates the driving unit so that the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth quality detection unit is configured to change the torque in a state where the magnitude of vibration is maximized. Judge the quality of the laundry from the size of
    The said control part is a drum type washing machine which changes the time of the spin-drying | dehydration rotation in the said rinse process according to the cloth quality by the said cloth quality detection part.
  3. 洗濯物を収容し、水平な回転軸または前面側から背面側に向かって下向きに傾斜する回転軸を中心に回転自在の洗濯槽と、
    前記洗濯槽を収容する水槽と、
    前記水槽の振動を検知する振動検知部と、
    前記洗濯槽を駆動する駆動部と、
    前記駆動部のトルク変動の大きさを検知するトルク変動検知部と、
    洗濯物の布質を検知する布質検知部と、
    前記駆動部等を駆動して洗い工程、すすぎ工程、脱水工程等の各工程を制御する制御部とを備え、前記制御部は、前記振動検知部により検知する振動の大きさが最大となるよう前記駆動部を動作させ、前記布質検知部は、前記振動の大きさが最大となる状態での前記トルク変動の大きさから前記洗濯物の布質を判断し、
    制御部布質検知部前記制御部は、前記脱水工程における最終脱水動作の終了後に、前記布質検知部による布質に応じた撹拌動作を行うドラム式洗濯機。     A laundry tub that accommodates the laundry and is rotatable about a horizontal rotation axis or a rotation axis inclined downward from the front side toward the back side;
    A water tank containing the washing tub;
    A vibration detection unit for detecting the vibration of the water tank;
    A drive unit for driving the washing tub;
    A torque fluctuation detection unit for detecting the magnitude of torque fluctuation of the drive unit;
    A cloth quality detection unit for detecting the quality of the laundry,
    And a controller that controls each process such as a washing process, a rinsing process, and a dehydrating process by driving the driving unit and the like so that the magnitude of vibration detected by the vibration detecting unit is maximized. The drive unit is operated, and the cloth quality detection unit determines the cloth quality of the laundry from the magnitude of the torque fluctuation in a state where the magnitude of the vibration is maximized,
    Control part cloth quality detection part The said control part is a drum type washing machine which performs stirring operation according to the cloth quality by the said cloth quality detection part after completion | finish of the final dehydration operation | movement in the said dehydration process.
  4. 前記洗濯槽または前記水槽に給水する給水部と、
    前記駆動部の回転数を検知する回転数検知部とを備え、
    前記制御部は、前記給水部を動作して給水することにより前記洗濯物が含水し、前記振動検知部により検知する振動の大きさが最大となる回転数で前記駆動部を動作させ、前記布質検知部は、前記回転数における前記トルク変動の大きさから前記洗濯物の布質を検知するようにした請求項１～３のいずれか１項に記載のドラム式洗濯機。     A water supply section for supplying water to the washing tub or the water tub;
    A rotational speed detection unit that detects the rotational speed of the drive unit;
    The control unit operates the water supply unit to supply water, so that the laundry contains water, operates the driving unit at a rotation speed at which the magnitude of vibration detected by the vibration detection unit is maximized, and the cloth The drum type washing machine according to any one of claims 1 to 3, wherein the quality detection unit detects the quality of the laundry from the magnitude of the torque fluctuation at the rotation speed.
  5. 前記洗濯槽または前記水槽に給水する給水部と、
    前記駆動部の回転数を検知する回転数検知部とを備え、
    前記制御部は、給水開始後に前記洗濯槽を所定回転数で所定時間回転させる工程を行い、前記所定回転数を変化させて、前記振動検知部により検知する振動の大きさが最大となる回転数を決定する請求項１～３のいずれか１項に記載のドラム式洗濯機。     A water supply section for supplying water to the washing tub or the water tub;
    A rotational speed detection unit that detects the rotational speed of the drive unit;
    The controller performs a step of rotating the washing tub at a predetermined rotation speed for a predetermined time after the start of water supply, and changes the predetermined rotation speed so that the vibration detected by the vibration detection unit is maximized. The drum-type washing machine according to any one of claims 1 to 3, wherein:
  6. 前記布質検知部は、前記洗濯物を構成する素材として吸水性の高い繊維と吸水性の低い繊維との割合を判断する請求項１～３のいずれか１項に記載のドラム式洗濯機。 The drum type washing machine according to any one of claims 1 to 3, wherein the cloth quality detection unit determines a ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry.
  7. 前記制御部は、前記布質検知部により前記洗濯槽内の前記洗濯物が吸水性の低い繊維から構成される割合が大きいと検知された場合、前記割合が大きくなるほど、脱水回転時の時間を短くする請求項１または２に記載のドラム式洗濯機。 When the laundry detection unit detects that the laundry in the washing tub is composed of fibers having low water absorption, the control unit detects the time during dehydration rotation as the proportion increases. The drum type washing machine according to claim 1 or 2, wherein the drum type washing machine is shortened.
  8. 前記制御部は、前記布質検知部により前記洗濯物が吸水性の低い繊維から構成される割合が大きいと検知した場合、前記割合が大きくなるほど、前記最終脱水動作終了後の前記撹拌動作を行う時間を短くするようにした請求項３に記載のドラム式洗濯機。 The control unit performs the stirring operation after the end of the final dehydration operation as the ratio increases when the cloth quality detection unit detects that the laundry is composed of fibers having low water absorption. The drum type washing machine according to claim 3, wherein the time is shortened.
  9. 前記最終脱水動作終了後の前記撹拌動作は正転と反転を含み、
    前記制御部は、前記布質検知部により前記洗濯物が吸水性の低い繊維から構成される割合が大きいと検知した場合、前記割合が大きくなるほど、前記反転を行う回数を少なくするようにした請求項３に記載のドラム式洗濯機。     The stirring operation after completion of the final dehydration operation includes normal rotation and inversion,
    The control unit is configured to reduce the number of inversions as the ratio increases when the cloth detection unit detects that the laundry is composed of fibers having low water absorption. Item 4. The drum type washing machine according to Item 3.
  10. 前記制御部は、前記布質検知部により前記洗濯物が吸水性の低い繊維から構成される割合が所定の割合を越える場合、前記最終脱水動作終了後の前記撹拌動作を行わないようにした請求項３に記載のドラム式洗濯機。 The control unit does not perform the stirring operation after the final dehydration operation is finished when the ratio of the laundry made of fibers having low water absorption exceeds a predetermined ratio by the cloth quality detection unit. Item 4. The drum type washing machine according to Item 3.
PCT/JP2012/001754 2011-07-15 2012-03-14 Drum washing machine WO2013011605A1 (en)

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CN104120591B (en) * 2013-04-24 2018-05-01 青岛海尔洗衣机有限公司 A kind of laundry drier control method
KR102217559B1 (en) 2014-03-10 2021-02-19 엘지전자 주식회사 Apparatus for controlling washing machine and method thereof
JP2017023614A (en) * 2015-07-28 2017-02-02 パナソニックＩｐマネジメント株式会社 Drum type washing machine
JP2018117898A (en) * 2017-01-25 2018-08-02 東芝ライフスタイル株式会社 Washing and drying machine
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