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WO2013011606A1 - Machine à laver à tambour - Google Patents

Machine à laver à tambour Download PDF

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Publication number
WO2013011606A1
WO2013011606A1 PCT/JP2012/001755 JP2012001755W WO2013011606A1 WO 2013011606 A1 WO2013011606 A1 WO 2013011606A1 JP 2012001755 W JP2012001755 W JP 2012001755W WO 2013011606 A1 WO2013011606 A1 WO 2013011606A1
Authority
WO
WIPO (PCT)
Prior art keywords
laundry
detection unit
unit
drying
washing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/001755
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English (en)
Japanese (ja)
Inventor
亘 内山
利彦 安井
智之 菊川
克也 脇田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of WO2013011606A1 publication Critical patent/WO2013011606A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—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.
  • FIG. 11A is a diagram showing a behavior in which a laundry containing a large amount of chemical fiber rotates in a rotating drum in conventional cloth quality detection.
  • FIG. 11B is a diagram showing a behavior in which a laundry with a lot of 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 conventional clothes dryer described in Patent Document 1 includes a washing tub, an air circulation device, and a heat pump.
  • the quick-drying course is executed by increasing the drive frequency of the compressor of the heat pump.
  • the laundry is dried with low power consumption. Therefore, it is possible to achieve both reduction of the time required for drying and reduction of power consumption for each course to be selected. Further, in the saving course, by driving the compressor in a predetermined high frequency band, an efficient operation can be performed, and power consumption can be further saved.
  • the present invention provides a washing machine capable of accurately detecting the cloth quality of clothes put in a washing tub.
  • the present invention can detect insufficient dryness and uneven drying by switching the output of the heating unit according to the detected fabric composition ratio while accurately detecting the fabric composition ratio of the clothes to be dried in the drying process.
  • a drum-type washing machine capable of realizing a drying operation with high energy saving while suppressing power consumption of drying is provided.
  • a drum-type washing machine of the present invention accommodates laundry, and is a washing tub that is rotatable around a horizontal rotating shaft or a rotating shaft that is inclined downward from the front side toward the back side.
  • a water tank for storing the washing tub, a heating unit for drying the air in the washing tub, a vibration detecting unit for detecting vibration of the water tub, a driving unit for driving the washing tub, and the magnitude of torque fluctuation of the driving unit.
  • 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 output of a heating part according to the cloth quality by a cloth quality detection part.
  • 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, a dehydration process, and a drying 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 a drying process according to the cloth quality by a cloth quality detection part.
  • 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 second embodiment of the present invention.
  • FIG. 8 is a flowchart showing the operation of the drum type washing machine in the third embodiment of the present invention.
  • FIG. 9 is a cross-sectional view showing a schematic structure of a drum-type washing machine according to Embodiment 4 of the present invention.
  • FIG. 10 is a flowchart showing the operation of the drum type washing machine in the fourth embodiment of the present invention.
  • FIG. 11A is a diagram illustrating 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. 11B 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. That is, the heating unit 9 h dries the air in the rotating drum 4.
  • 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 from the outer surface to the injection port 51 provided in the front end wall 3g around the opening of the water tank 3, and the inner surface of the front end wall 3g of the water tank 3; Washing water is jetted between the outer surface of the front end wall 4g of the corresponding 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 configuring the control device 11 reduces the rotation speed of the circulation pump 30 to, for example, about 2500 rpm and supplies the circulation. Make water 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. . Further, the control unit 11a controls at least the motor 6, the water supply valve 7b, the drain valve 8b, and the like through a power switching unit (not shown), thereby performing at least washing, rinsing, dehydration, and drying.
  • 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 number of rotations of the motor 6 is determined by varying the number of rotations of the motor 6 while performing vector control so that the maximum acceleration is applied in a predetermined direction (in the present invention, the vertical direction). To do. 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 washing process will be explained.
  • 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. In the same manner, the rotational drum rotational speed at which acceleration is averaged on average is obtained by changing the rotational drum rotational speed from 47, 48, and 49 rpm to 44 to 40 rpm.
  • 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 operation of the motor 6 is started, that is, for 5 seconds after the rotation of the rotating drum 4 is started, the laundry in the rotating drum is not stable, and thus the torque fluctuation is not detected. Start detecting changes. 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 drives at least the drive unit and controls at least each process such as washing, rinsing, dehydration, and drying, and the control unit detects by the vibration detection unit.
  • the drive unit is operated so that the magnitude of vibration is maximized
  • the cloth quality detection unit is configured to determine the cloth quality of the laundry from the magnitude of the torque fluctuation in this state.
  • 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 drawing out 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 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 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 drawing out 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 drawing out 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 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 drawing out 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 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 step, the dehydrating step and the drying step are performed, and the washing operation is completed.
  • control unit 11a provided in the drum type washing machine in Embodiment 1 of the present invention performs the following operation.
  • control unit 11a determines that the laundry fabric has high water absorption
  • the control unit 11a changes the direction of increasing the output of the heating unit 9h in accordance with the high water absorption fabric. Specifically, in the heating unit 9h using a heat pump, the frequency of the compressor is set high to ensure sufficient drying performance.
  • control part 11a determines with the cloth quality of the laundry having low water absorption
  • the control part 11a changes the direction of decreasing the output of the heating part 9h according to the cloth quality having low water absorption.
  • the frequency of the compressor is set low so that the heating unit 9h using the heat pump does not become undried.
  • 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 frequency of the compressor (not shown) is set high. Ensuring sufficient drying performance (S5).
  • 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 setting content of the compressor is left as it is, and the frequency is not changed (S7).
  • 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 compressor fluctuation is reduced to the extent that it does not become undried.
  • the frequency is set low (S8).
  • the laundry is roughly divided into cotton fibers and chemical fibers.
  • the cotton fibers are more dense than the chemical fibers because the fibers themselves form when they contain water and expand. Accordingly, when drying is performed by applying heat to clothing, the time required for the moisture from the clothing to evaporate is longer for cotton fibers than for chemical fibers. This is because the chemical fibers are less sparse and the heat is more likely to reach the back of the fibers and does not absorb much water. That is, the amount of heat required for drying away moisture during drying is large for cotton fibers.
  • the fabric quality is large, the water absorption is low, so that the heating amount necessary for drying is relatively small.
  • the cloth quality detection unit that detects the composition ratio of the cotton and the synthetic fiber of the garment accommodated in the washing tub is provided, and is the ratio composed of the fiber having high water absorption high? It can be determined whether the proportion of the fibers having low water absorption is large. Furthermore, by setting the minimum required compressor frequency according to the result of the cloth quality detection unit 11b, it is excellent in energy saving that suppresses the power consumption of drying without causing insufficient drying and uneven drying. Dry operation can be realized.
  • 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.
  • the control unit sets the minimum output of the heating unit according to the fabric quality detected by the fabric quality detection unit, so that the drying is insufficient or uneven drying occurs. Therefore, it is possible to realize a drying operation with high energy saving while suppressing power consumption of drying.
  • 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 made appropriately, and the minimum required output of the heating unit can be set according to the fabric characteristics. For this reason, the drying operation with high energy saving which maximized the drying efficiency can be realized.
  • the control unit detects that the ratio of the laundry made of fibers having low water absorption is large by the cloth quality detection unit, the larger the ratio, The output is reduced.
  • 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 output of the heating unit can be greatly reduced because at least the amount of heat required at the time of drying is at least when there are many synthetic fibers. For this reason, the drying operation excellent in energy saving property is realizable.
  • the drum type washing machine in the present embodiment is a heat pump cycle having a heating unit including a compressor and a heat exchanger.
  • the compressor increases as the ratio increases. The driving frequency is lowered.
  • 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 output of the heating unit can be greatly reduced because at least the amount of heat required at the time of drying is at least when there are many synthetic fibers. For this reason, it becomes possible to improve a drying performance on the conditions excellent in energy saving property.
  • 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 cloth quality detection of the drum type washing machine in the second embodiment of the present invention determines the ratio of fibers having high water absorption and fibers having low water absorption as a material constituting the laundry.
  • the heating unit is configured by a heater 19 as a heating unit and a water cooling system as a dehumidifying unit.
  • the dehumidifying part 9g is good also as an air cooling system.
  • control unit 11a provided in the drum type washing machine in the second embodiment of the present invention performs the following operation.
  • control part 11a determines that the cloth quality of the laundry is highly absorbent
  • the controller 11a changes the direction of increasing the output of the heater according to the highly absorbent cloth quality to ensure sufficient drying performance.
  • control unit 11a determines that the laundry fabric has low water absorption
  • the control unit 11a changes the output of the heater to a level that does not become undried according to the low water absorption.
  • the rotating drum 4 serving as the washing tub is rotated by the motor 6 as the driving 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 control unit 11a detects the magnitude of the torque at that time by the motor current detection unit 17. If the torque fluctuation calculation unit 11c determines that the torque fluctuation width (torque fluctuation magnitude) is greater than the first predetermined value A (YES in S4), the heater output is increased to ensure sufficient drying performance. (S5).
  • 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, N6 in S6), the heater setting is left as it is, and the heater output is not changed (S7).
  • 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 output of the heater is set so as not to be undried. Is set small (S8).
  • the cloth quality detection unit that detects the composition ratio of the cotton and the synthetic fiber of the clothes stored in the washing tub is provided, and the cloth quality detected by the cloth quality detection unit is the ratio of cotton. Is large, the water absorption is high, so that a large amount of heating is required to take away moisture during drying. On the other hand, when the fabric quality is large, the water absorption is low, that is, the necessary heating amount for drying is relatively small. Therefore, by setting the minimum output of the heater 19 according to the cloth quality, it is possible to realize an energy saving operation that suppresses the power consumption of drying without causing insufficient drying or uneven drying.
  • 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 third embodiment of the present invention changes the time of the drying process according to the fabric quality by the fabric quality detection unit 11b.
  • control unit 11a provided in the drum type washing machine in Embodiment 3 of the present invention performs the following operation.
  • the control unit 11a changes the drying time to increase in accordance with the fabric having high water absorption. Specifically, the drying time is increased by, for example, 5 minutes to ensure sufficient drying performance.
  • the control unit 11a changes the drying time in a direction that reduces the drying time according to the fabric with low water absorption.
  • the drying time is set to be short, for example, about 3 minutes so as not to be undried.
  • the rotating drum 4 as 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 detection unit 16 detects the vibration of the water tank 3 accompanying the rotation of the rotating drum 4, determines whether the vibration is maximum (S3), and determines that the vibration is not maximum (NO in S3).
  • the motor 6 is controlled to change the rotational speed of the rotary drum 4.
  • 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 drying process time T (H) is increased by, for example, 5 minutes. Thus, sufficient drying performance is ensured (S5).
  • 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 drying process time T (H) is left as it is (S7).
  • the drying process time T (H) is set short (about S8).
  • the drying operation is performed by changing the drying process time as described above.
  • the set drying time set above has elapsed (YES in S13)
  • the drying process is finished and all the operations are finished.
  • the laundry is roughly divided into cotton fibers and chemical fibers.
  • the cotton fibers are more dense than the chemical fibers because the fibers themselves form when they contain water and expand. Accordingly, when drying is performed by applying heat to clothing, the time required for the moisture from the clothing to evaporate is longer for cotton fibers than for chemical fibers. This is because the chemical fibers are less sparse and the heat is more likely to reach the back of the fibers and does not absorb much water. That is, the amount of heat required for drying away moisture during drying is large for cotton fibers.
  • the fabric quality is large, the water absorption is low, so that the heating amount necessary for drying is relatively small.
  • the cloth quality detection unit that detects the composition ratio of the cotton and the synthetic fiber of the garment accommodated in the washing tub is provided, and is the ratio composed of the fiber having high water absorption high? It can be determined whether the proportion of the fibers having low water absorption is large. Furthermore, by setting the time required for the minimum drying process according to the result of the cloth quality detection unit 11b, drying with excellent energy savings within a specific time without causing insufficient drying or uneven drying. Driving can be realized.
  • 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.
  • the drying unit 9 may be a heater as the heating unit 9h and a water cooling method or an air cooling method as the dehumidifying unit 9g.
  • the control unit changes the time of the drying process according to the cloth quality detected by the cloth quality detection unit. Without generating, it is possible to realize a drying operation with excellent energy saving within a specific time.
  • 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 made appropriately, and the minimum drying process time can be set according to the fabric properties. For this reason, the drying operation excellent in energy saving can be realized within a specific time.
  • 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 larger the ratio, the more the drying process. The time is reduced.
  • 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 amount of heat required for drying is small, and the time of the drying process can be shortened. For this reason, it is possible to realize a drying operation with excellent energy saving within a specific time.
  • the drum-type washing machine of the present embodiment further includes a dryness detection unit that detects the dryness of the laundry in the washing tub, and determines that there are many fibers with low water absorption depending on the detection content by the cloth quality detection unit, and When the drying detection unit detects that the laundry is in a predetermined drying level, the time for the drying process is shortened.
  • Embodiment 3 uses the other configuration.
  • FIG. 9 is a cross-sectional view showing a schematic structure of the drum type washing machine according to the fourth embodiment of the present invention
  • FIG. 10 is a flowchart at the time of cloth quality detection of the drum type washing machine according to the fourth embodiment of the present invention.
  • the drying unit 9 captures the discharge port 9f that discharges air from the water tank 3 and the rotating drum 4, the blower 9c as a blowing unit that sucks air from the discharge port 9f, and yarn waste contained in the air from the discharge port 9f.
  • a filter (not shown) that collects and removes dust is connected to an inlet 9e that is provided on the back side of the water tank 3 and that introduces air blown from the blower 9c into the rotating drum 4, and the blower 9c and the inlet 9e. It has a ventilation path 9d and a drying unit 9.
  • the drying unit 9 is a heat pump cycle in the present embodiment, and includes a heat exchanger including a dehumidifying unit 9g and a heating unit 9h, a compressor 9i, and a throttle unit 9j. Therefore, also in the present embodiment, as in the first embodiment, the output control of the heating unit 9h means the control of the frequency of the compressor 9i.
  • 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 drum-type washing machine is not limited to a structure that performs heat pump-type clothing drying.
  • the dehumidifying unit 9g may be a water-cooled type in which water is sprayed directly on the drying air
  • the heating unit 9h may be a heater.
  • the drying detection unit 20 includes an air temperature detection unit 20a before clothing contact and an air temperature detection unit 20b after clothing contact, and the detection of drying is performed by detecting the temperature of the air that dries the clothing.
  • the temperature of the dry air at a high temperature for drying clothes is monitored by a pre-clothing contact air temperature detection unit 20a provided between the blower 9c and the rotary drum 4. Further, the temperature of the air that has come into contact with the clothes and becomes humid is monitored by a post-clothing contact air temperature detection unit 20b provided between the outlet 9f and the dehumidifying unit 9g.
  • the controller 11a performs the drying operation while monitoring the temperature difference Ts between the two temperatures based on the signal from the drying detector 20.
  • the temperature of the clothing gradually rises, so the air temperature after contacting the clothing also rises.
  • the air temperature after clothing contact approaches the air temperature before clothing contact. In this way, while monitoring the temperature difference between the drying air temperature before clothing contact and the air temperature after clothing contact, if the temperature difference is reduced to a predetermined value, the moisture contained in the clothing is almost dehumidified, It can be seen that the clothes have been dried.
  • S1 to S12 are the same as in the third embodiment of the present invention shown in FIG.
  • the drying detection unit 20 determines whether the laundry is in a predetermined drying level. Judgment is made (S14). If the predetermined dryness has been reached (YES in S14), the drying is finished according to the drying process time Ta (H) set based on the cloth quality detection result. If the predetermined dryness has not been reached (NO in S14), the drying is continued until the predetermined dryness is reached. That is, drying continues even after the time Ta (H) of the drying process set based on the cloth quality detection result.
  • the drum type washing machine in the present embodiment has a dryness detection unit that detects the dry state of the laundry, determines that there are many fibers with low water absorption according to the detection content by the cloth quality detection unit, and is dry.
  • the detection unit detects that the laundry is in a predetermined dry degree, the time of the drying process is shortened.
  • Such a configuration can correct erroneous detection of the cloth quality detection unit when the initial state before washing is wet clothing.
  • 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.
  • the washing machine according to the present invention is provided with a cloth quality detection unit for detecting the composition ratio of the cotton and the synthetic fiber of the clothes housed in the washing tub. If the percentage of cotton detected by the cloth quality detector is high, the water absorption is high, so there is a large amount of heating required to take away moisture during drying and the fabric quality is much less than that of synthetic fibers. In some cases, the water absorption is low, that is, the amount of heating required for drying is relatively small. Therefore, by setting the minimum drying process time according to the fabric quality, it is possible to realize a drying operation with excellent energy savings within a specific time without causing insufficient drying and uneven drying. .

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

Abstract

La présente invention se rapporte à une machine à laver à tambour qui est pourvue : d'un réservoir d'eau destiné à recevoir un bac de lavage qui est incliné vers le bas vers la surface arrière ; d'une unité de détection des vibrations (16) destinée à détecter les vibrations du réservoir d'eau ; d'une unité de détection de la variation du couple destinée à détecter l'ampleur de la variation du couple d'une unité d'entraînement destinée à entraîner le bac de lavage ; d'une soufflante d'air destinée à souffler l'air de circulation vers le bac de lavage ; et d'une unité de commande (11a) destinée à commander des étapes telles que l'étape de lavage, l'étape de rinçage, l'étape de vidange et l'étape de séchage. L'unité d'entraînement est mise en fonctionnement de telle sorte que l'ampleur des vibrations détectées au moyen de l'unité de détection des vibrations (16) atteigne la valeur maximale. Ensuite, l'unité de commande (11a) modifie la sortie d'une unité de chauffage pendant l'étape de séchage selon la qualité du linge détectée au moyen d'une unité de détection de la qualité du linge (11b) qui détecte la qualité du linge à laver à partir de l'ampleur de la variation du couple pendant que l'unité d'entraînement fonctionne comme cela est mentionné ci-dessus.
PCT/JP2012/001755 2011-07-15 2012-03-14 Machine à laver à tambour Ceased WO2013011606A1 (fr)

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JP2018117898A (ja) * 2017-01-25 2018-08-02 東芝ライフスタイル株式会社 洗濯乾燥機
JP2018130523A (ja) * 2017-02-10 2018-08-23 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 洗濯機

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KR102217559B1 (ko) 2014-03-10 2021-02-19 엘지전자 주식회사 세탁기의 제어 장치 및 그의 방법
JP2017023614A (ja) * 2015-07-28 2017-02-02 パナソニックＩｐマネジメント株式会社 ドラム式洗濯機
CN112899985B (zh) * 2019-11-19 2023-09-19 海信冰箱有限公司 洗衣机

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JP2018117898A (ja) * 2017-01-25 2018-08-02 東芝ライフスタイル株式会社 洗濯乾燥機
JP2018130523A (ja) * 2017-02-10 2018-08-23 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 洗濯機
US11149372B2 (en) * 2017-02-10 2021-10-19 Samsung Electronics Co., Ltd. Washing machine

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