WO2015127823A1 - Machine à laver - Google Patents

Machine à laver Download PDF

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Publication number
WO2015127823A1
WO2015127823A1 PCT/CN2014/095787 CN2014095787W WO2015127823A1 WO 2015127823 A1 WO2015127823 A1 WO 2015127823A1 CN 2014095787 W CN2014095787 W CN 2014095787W WO 2015127823 A1 WO2015127823 A1 WO 2015127823A1
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WO
WIPO (PCT)
Prior art keywords
drum
laundry
unit
control unit
bias
Prior art date
Application number
PCT/CN2014/095787
Other languages
English (en)
Chinese (zh)
Inventor
广濑久典
中本重阳
广田弘美
Original Assignee
海尔亚洲国际株式会社
青岛海尔洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔亚洲国际株式会社, 青岛海尔洗衣机有限公司 filed Critical 海尔亚洲国际株式会社
Publication of WO2015127823A1 publication Critical patent/WO2015127823A1/fr

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—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 
    • D06F23/02—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 rotating or oscillating about a horizontal axis
    • 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
    • D06F23/00—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 
    • D06F23/06—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 rotating or oscillating about an inclined axis
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a washing machine.
  • the washing machine there is a washing machine having a rotatable drum that accommodates laundry.
  • the vibration and the noise of the washing machine become large. Therefore, in the following Patent Documents 1 to 3, before the spin-drying rotation of the drum, A process of loosely separating and washing the laundry into the drum is performed.
  • the rotating member is disposed on the opposite side of the input port of the laundry in the inclined arrangement drum, and after the drain in the rinsing process, the drum and the rotating member are rotated to make the inside of the drum The laundry is loose.
  • the drum that is rotatable about the axis extending in the horizontal direction is rotated by the predetermined speed as the dispensing process after the rinsing water in the rinsing process is scooped, so that the laundry is uniformly It is distributed in the drum.
  • the drum has two outer rotatable portions and an inner rotatable portion that are rotatable with each other. When the deviation of the laundry is not eliminated after the dispensing process, the outer rotatable portion and the inner rotatable portion are oppositely distributed as a redistribution process. Rotate.
  • a rotor is provided in the washing and dewatering tank, and after the rinsing process is completed, the rotor is rotated by a small amount to uniformize the state of the cloth as the laundry in the washing and dewatering tank.
  • Patent Document 1 Japanese Patent No. 5176662
  • Patent Document 2 Japanese Patent Publication No. 2003-527903
  • Patent Document 3 Japanese Patent Laid-Open No. Hei 10-179975
  • the present invention has been made in view of the background, and an object thereof is to provide a washing machine capable of effectively eliminating the bias of laundry in a drum.
  • the present invention relates to a washing machine, comprising: a drum that is rotatable about an axis extending in a horizontal direction or an oblique direction with respect to a horizontal direction, internally containing laundry; and a rotor disposed in the drum, Rotating around the axis; driving unit to rotate the drum and the rotor respectively; detecting unit for detecting the deviation of the laundry in the drum; and determining unit, before the dehydration of the washing starts, according to Determining whether the laundry in the drum is biased by the detection result obtained by the detecting unit; and the control unit, when the determining unit determines that the deviation of the laundry does not occur, controlling the driving unit to make the roller Dehydrating rotation to start dehydration of the laundry, and in the case where the judging unit judges that there is bias of the laundry, controlling the driving unit to rotate the drum and the rotor at mutually different speeds; the braking unit For applying a brake to the rotation of the drum, the control unit determining that there is washing at the determination unit A case where
  • the present invention is characterized in that, in the case where the judging unit judges that there is a bias of the laundry, the control unit causes the drum and the rotor to rotate at mutually different speeds to make the system The moving unit operates to apply a brake to the rotation of the drum.
  • control unit controls the drive unit to cause the drum and the rotor to rotate at a constant speed in a case where the determination unit determines that there is a bias of the laundry, after which the In the case where the judging unit still judges that there is a bias of the laundry, the driving unit is controlled such that the drum and the rotor rotate at mutually different speeds.
  • the present invention is characterized in that it includes a water supply unit that supplies water into the drum, and the control unit, when the determination unit repeatedly determines that the number of times the laundry is biased reaches a predetermined number of times, passes through the water supply unit Water is supplied to the drum, and the driving unit is controlled such that the drum rotates.
  • the brake is applied to the rotation of the drum, thereby biasing in the drum
  • the laundry is more easily loosened by the impact of the brake, so that the deviation of the laundry in the drum can be more effectively eliminated.
  • the deflection of the laundry can be quickly eliminated only by rotating the drum and the rotor at a constant speed.
  • the drum and the rotor are rotated at different speeds, so that even a large bias can be eliminated.
  • the determination of the deviation of the laundry is so large that the deviation of the laundry is repeated a predetermined number of times, it is possible to effectively immerse the laundry in the supplied water and rotate the drum in the drum, thereby effectively Loose laundry, reliably eliminating the bias of the laundry.
  • Fig. 1 is a schematic longitudinal sectional right side view of a washing machine 1 according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the electrical configuration of the washing machine 1.
  • FIG. 3 is a flow chart showing an example of a control operation performed in the washing machine 1.
  • Fig. 4 is a timing chart showing a state of the rotational speed of the motor 6 following the flowchart of Fig. 3.
  • Fig. 5 is a view showing a partial modification of the flowchart of Fig. 3;
  • Fig. 6 is a view showing a partial modification of the flowchart of Fig. 3;
  • FIG. 7 is a flowchart showing a modification of the control operation performed in the washing machine 1.
  • FIG. 8 is a flowchart showing a modification of the control operation performed in the washing machine 1.
  • Fig. 1 is a schematic longitudinal sectional right side view of a washing machine 1 according to an embodiment of the present invention.
  • the vertical direction of FIG. 1 is referred to as the vertical direction X of the washing machine 1, and the left-right direction of FIG. 1 is referred to as the front-rear direction Y of the washing machine 1.
  • the upper side is referred to as upper X1
  • the lower side is referred to as lower X2.
  • front-rear direction Y the left side of FIG. 1 is referred to as front Y1
  • rear Y2 the right side of FIG. 1
  • the washing machine 1 is a so-called drum type washing machine, and includes a casing 2, an outer tub 3, a drum 4, a pulsator 5 as a rotor, a motor 6 as a drive unit, and a gear switching device 7.
  • the casing 2 is formed in a box shape.
  • the front side surface 2A of the casing 2 is formed to be inclined with respect to the vertical direction X so as to extend toward the rear side Y2 toward the upper side X1.
  • An opening 8 that communicates the inside and the outside of the casing 2 is formed on the front side surface 2A.
  • a door 9 that opens and closes the opening 8 is provided on the front side 2A.
  • the outer groove 3 is formed in a bottomed cylindrical shape.
  • the outer tub 3 has a substantially cylindrical peripheral wall 3A that is disposed obliquely with respect to the horizontal direction H, a bottom wall 3B that fills a hollow portion of the circumferential wall 3A from the rear Y2, and an edge of the front Y1 side of the circumferential wall 3A.
  • An annular annular wall 3C that projects toward the center of the circumferential wall 3A.
  • An inlet and outlet 10 that communicates with the hollow portion of the circumferential wall 3A from the front Y1 is formed inside the annular wall 3C.
  • the doorway 10 is opposed to the opening 8 of the casing 2 from the rear Y2, and is in a communicating state.
  • the bottom wall 3B is formed in a disk shape extending substantially in parallel with the front side surface 2A, and a through hole 3D penetrating the bottom wall 3B is formed at a center position of the bottom wall 3B.
  • a convex portion 11 that protrudes toward the rear Y2 is provided at a position where the through hole 3D is edging.
  • water such as tap water, bath water, and a liquid in which the detergent is dissolved can be stored.
  • the water supply path 40 connected to the tap of the tap water is connected to the outer tank 3 from the upper side X1, and the tap water is supplied from the water supply path 40 into the outer tank 3.
  • a water supply valve 41 for opening and closing the water supply for starting or stopping the water supply is provided in the middle of the water supply path 40.
  • the drain passage 42 is connected to the outer tub 3 from the lower side X2, and the water in the outer tub 3 is discharged from the drain passage 42 to Outside the machine.
  • a drain valve 43 for opening and closing the drain to start or stop the drain is provided in the middle of the drain passage 42.
  • the drum 4 is formed in a bottomed cylindrical shape that is smaller than the outer tank 3, and is capable of accommodating the laundry L therein.
  • the drum 4 has a substantially cylindrical peripheral wall 4A that is disposed obliquely with respect to the horizontal direction H, a bottom wall 4B that fills a hollow portion of the circumferential wall 4A from the rear Y2, and an edge of the front Y1 side of the circumferential wall 4A. And an annular annular wall 4C that protrudes toward the center of the circumferential wall 4A.
  • the inner circumferential surface of the circumferential wall 4A is the inner circumferential surface of the drum 4.
  • An inlet and outlet 12 that communicates with the hollow portion of the circumferential wall 4A from the front Y1 is formed inside the annular wall 4C.
  • the doorway 12 is opposed to the doorway 10 of the outer tub 3 and the opening 8 of the casing 2 from the rear Y2, and is in a communicating state.
  • the entrances and exits 10 and 12 together with the opening 8 are opened and closed by the door 9.
  • the user of the washing machine 1 inputs the laundry L to the drum 4 via the open opening 8, the inlet and outlet 10, and 12.
  • the drum 4 is housed in the outer tank 3 coaxially.
  • the drum 4 in a state of being housed in the outer tub 3 is rotatable about an axis 13 that constitutes a central axis thereof and extends in an oblique direction K with respect to the horizontal direction H.
  • a plurality of through holes are formed in the circumferential wall 4A and the bottom wall 4B of the drum 4, and water in the outer tub 3 can pass between the outer tub 3 and the drum 4 through the through holes. Thereby, the water level in the outer tank 3 coincides with the water level in the drum 4.
  • the bottom wall 4B of the drum 4 is formed in a disk shape that is spaced apart from the front wall 3B of the outer tank 3 at a distance from the front Y1 and extends substantially in parallel, and is formed on the bottom wall 4B at a center position coincident with the axis 13
  • the through hole 4D that penetrates the bottom wall 4B.
  • the bottom wall 4B is provided with a plurality of support shafts 14 that surround the through holes 4D and extend rearward Y2 in the oblique direction K.
  • These support shafts 14 are arranged at equal intervals along the circumferential direction S centering on the axis 13 .
  • the circumferential direction S coincides with the circumferential direction of the drum 4.
  • the end portion of the rear side Y2 of each of the support shafts 14 is in a state of passing through the through hole 3D of the bottom wall 3B of the outer tub 3 and being exposed to the rear Y2 from the bottom wall 3B.
  • the planetary gears 15 are attached one by one to the end of the rear Y2 of each of the support shafts 14.
  • the planetary gear 15 is a spur gear in which teeth are formed on the outer peripheral surface, and is rotatably supported by the support shaft 14. Therefore, each of the planetary gears 15 is in a state of being directly coupled to the drum 4.
  • the agitator 5 is formed in a disk shape centered on the axis 13 and is disposed concentrically with the drum 4 along the bottom wall 4B in the drum 4.
  • a plurality of agitating blades 5A arranged in a radial shape are provided on the front surface facing the inlet and outlet 12 of the drum 4.
  • the rotating shaft 16 whose center extends in the oblique direction K toward the rear Y2.
  • the agitator 5 is integrated with the rotating shaft 16 and is rotatable about the axis 13 .
  • the rotating shaft 16 is in a state of passing through the through hole 4D of the bottom wall 4B of the drum 4 and the through hole 3D of the bottom wall 3B of the outer tub 3 in order, and is exposed from the bottom wall 3B to the rear Y2.
  • the portion of the rotating shaft 16 that is exposed from the bottom wall 3B to the rear Y2 is provided with a sun gear 17 in the middle of the oblique direction K constituting the axial direction thereof, and is provided at the Y2 rearward of the sun gear 17 to be rotated.
  • the flange portion 16 in the radial direction R in the center of the shaft 16 and extending outward in the outward direction R1 is annular.
  • the inner side of the radial direction R is referred to as the radially inner side R2 with respect to the outer side R1 (radially outer side R1) of the radial direction R.
  • the radially outer side R1 is a direction far from the axis 13, and the radially inner side R2 is a direction close to the axis 13.
  • the sun gear 17 is a spur gear that forms teeth on the outer peripheral surface, and is fixed to be rotatable integrally with respect to the rotating shaft 16.
  • the sun gear 17 may be other elements that are different from the rotating shaft 16 or may be integrally formed with the rotating shaft 16.
  • a plurality of planetary gears 15 provided on the bottom wall 4B of the drum 4 are in a state of surrounding the sun gear 17 and the sun gear 17 and the planetary gears 15 are engaged with each other.
  • the peripheral portion of the radially outer side R1 of the flange portion 18 is formed to be disposed at R1 radially outward of each of the planetary gears 15.
  • a convex portion 19 that protrudes toward the front Y1 is provided at a peripheral portion of the radially outer side R1 of the flange portion 18.
  • the motor 6 is, for example, a three-phase brushless motor, and has a rotor 20 that rotates around the axis 13 as an output shaft.
  • the rotating shaft 16 of the agitator 5 is directly coupled to the rotor 20 and is rotatable integrally in a coaxial shape.
  • the washing machine 1 is associated with the gear switching device 7, and has an annular outer gear 21 centered on the axis 13.
  • the outer ring gear 21 is an annular body in which teeth are formed on the inner peripheral surface, and is disposed between the bottom wall 3B of the outer tub 3 and the flange portion 18 in the oblique direction K, and surrounds the plurality of planetary gears 15 and the respective planetary gears. 15 occlusal state.
  • the sun gear 17, the plurality of planet gears 15, and the outer gear 21 constitute a transmission mechanism 22.
  • a concave portion 23 that can accommodate the convex portion 11 of the bottom wall 3B of the outer tub 3 is formed on the end surface of the front wheel Y1 of the outer ring gear 21, and a convex portion that can accommodate the flange portion 18 is formed on the end surface of the rear Y2 of the outer ring gear 21
  • the concave portion 23 and the concave portion 24 are respectively formed to be not long in the circumferential direction S, and are appropriately embedded in the corresponding portions of the convex portion 11 and the convex portion 19.
  • the convex portion 11 and the convex portion 19 are respectively It can be single or multiple. In the case where a plurality of convex portions 11 are provided, the concave portions 23 and the convex portions 11 are provided in equal numbers. In the case where a plurality of convex portions 19 are provided, the concave portions 24 and the convex portions 11 are provided in equal numbers.
  • the gear switching device 7 includes an actuator 25 composed of a solenoid or the like, and a work piece 26 extending from the actuator 25.
  • the distal end portion 26A of the working piece 26 is engaged with the outer peripheral surface of the outer ring gear 21.
  • the actuator 25 is in operation, the work piece 26 is linearly moved back and forth along the tilting direction K as the outer wheel gear 21 as indicated by the thick arrow.
  • the outer ring gear 21 is kept in a state of being engaged with the respective planetary gears 15, and is moved in the oblique direction K.
  • the position of the outer ring gear 21 when the rearward Y2 is maximally moved is referred to as "one axis side", and the position of the outer ring gear 21 when the front side Y1 is moved to the maximum is referred to as "two axis side”.
  • the outer ring gear 21 of Fig. 1 is located at a neutral position between the one-axis side and the two-axis side.
  • the gear switching device 7 is a device that moves the outer ring gear 21 between the one-axis side and the two-axis side.
  • the outer ring gear 21 When the outer ring gear 21 is located on the one-axis side, the convex portion 19 of the flange portion 18 of the rotating shaft 16 of the agitator 5 is fitted into the concave portion 24 of the outer ring gear 21 from the rear Y2, and the outer ring gear 21 is coupled to the rotating shaft 16, and can be integrated therewith. Rotate.
  • the motor 6 When the motor 6 is operated and the rotor 20 is rotated in this state, in the transmission mechanism 22, the sun gear 17, the planetary gears 15, and the outer gear 21 rotate in the same direction at the same direction about the axis 13.
  • the drum 4 on the planetary gear 15 side and the agitator 5 on the sun gear 17 side rotate at a constant speed in the same direction in the circumferential direction S around the axis 13 .
  • each of the planetary gears 15 does not rotate around the support shaft 14.
  • the convex portion 11 of the bottom wall 3B of the outer tub 3 is fitted into the concave portion 23 of the outer ring gear 21 from the front Y1, and the outer ring gear 21 is coupled to the outer groove 3 so as not to rotate.
  • the sun gear 17 rotates about the axis 13 and the planetary gears 15 rotate around the support shaft 14 and are oriented toward the sun gear.
  • the direction in which the rotation direction of 17 is the same is revolved around the sun gear 17.
  • the reduction ratio of the transmission mechanism 22 is set to, for example, 1:2.75.
  • the motor 6 is rotated in conjunction with the transmission mechanism 22 and the gear switching device 7, so that the drum 4 and the agitator 5 are rotated at a constant speed or at different speeds.
  • the laundry L in the drum 4 is rotated
  • the drum 4 and the stirring blade 5A of the agitator 5 are washed while being stirred.
  • FIG. 2 is a block diagram showing the electrical configuration of the washing machine 1.
  • the washing machine 1 includes a judging unit, a control unit, and a control unit 30 as a water supply unit.
  • the control unit 30 is configured as a single chip including a memory 32 such as a CPU 31, a ROM or a RAM, and an I/O 33 as an input/output device.
  • the washing machine 1 it is possible to determine the presence or absence of the deviation of the laundry L in the drum 4 before the dehydration of the laundry L, and in the case where the determination of the bias is repeatedly made, the count count of the judgment is taken as The number of judgments is stored in the memory 32.
  • the washing machine 1 further includes a water level sensor 34, a water supply valve drive circuit 35, a drain valve drive circuit 36, a gear change drive circuit 37, a motor drive circuit 38, and a rotational speed reading device 39 as a detecting unit.
  • the water level sensor 34, the water supply valve drive circuit 35, the drain valve drive circuit 36, the gear change drive circuit 37, the motor drive circuit 38, and the rotational speed reading device 39 are electrically connected to the control unit 30 via the I/O 33, respectively.
  • the water level sensor 34 is a sensor that detects the water level of the outer tub 3 and the drum 4, and the detection result of the water level sensor 34 is input to the control unit 30 in real time.
  • the water supply valve drive circuit 35 is connected to the water supply valve 41, and the control unit 30 opens and closes the water supply valve 41 via the water supply valve drive circuit 35.
  • the drain valve drive circuit 36 is connected to the drain valve 43, and the control unit 30 opens and closes the drain valve 43 via the drain valve drive circuit 36.
  • the gear switching drive circuit 37 is connected to the gear switching device 7, and the control unit 30 controls the operation of the gear switching device 7 via the gear switching drive circuit 37 to move the outer ring gear 21 between the one-axis side and the two-axis side.
  • the motor drive circuit 38 is connected to the motor 6, and the control unit 30 controls the motor 6 via the motor drive circuit 38.
  • the rotational speed reading device 39 is a device that reads the rotational speed of the motor 6, strictly speaking the rotational speed of the rotor 20 of the motor 6, and is constituted by, for example, a Hall IC.
  • the rotational speed read by the rotational speed reading device 39 is input to the control unit 30 in real time.
  • the control unit 30 controls the motor 6 based on the input rotational speed to adjust the rotational speed of the motor 6 to a desired value.
  • the control unit 30 first opens the drain valve 43 to discharge the water in the drum 4 at the final stage of the rinsing process of rinsing the laundry L with the water stored in the drum 4 (step S1), after which the outer wheel of the transmission mechanism 22 is used.
  • the gear 21 is switched to the one-axis side (step S2).
  • control unit 30 clears the number of judgments stored in the memory 32 to 0 (zero) (step) S4).
  • the control unit 30 causes the rotor 20 of the motor 6 that has been stopped so far to rotate rightward from the front Y1, and gradually increases the rotation speed (step S5).
  • the drum 4 and the agitator 5 are both directly coupled to the rotor 20, and are rotated at the same speed in the same direction, and the respective rotational speeds are gradually increased.
  • the laundry L in the drum 4 can be dispersed in the circumferential direction S as uniformly as possible on the inner circumferential surface of the drum 4.
  • the control unit 30 When the rotation speed of the rotor 20 rises to 100 rpm at the timing T 2 of the time chart, the control unit 30 maintains the rotation speed of the rotor 20 at 100 rpm, and rotates the rotor 20 one turn to the right as viewed from the front Y1 (step S6).
  • the control unit 30 reads the deviation of the number of revolutions of the rotor 20 during one rotation of the rotation by the rotation speed reading device 39 (step S7). This one rotation corresponds to the timing T 2 to T 3 of the time chart. Further, the case of "left” and “right” hereinafter is the meaning of left and right when viewed from the front Y1.
  • the so-called rotation speed of 100 rpm is the number of revolutions of the laundry L that is pressed against the inner circumferential surface of the drum 4 by the centrifugal force when the drum L is rotated by the drum 4.
  • the control unit 30 controls the motor 6 to maintain the rotation speed of the rotor 20 at 100 rpm.
  • the rotation speed of the rotor 20 is not accurately maintained at 100 rpm due to the bias of the laundry L in the drum 4, which may vary.
  • the motor 6 requires a large torque when it is desired to lift the portion through the rotation of the drum 4. .
  • the control of the motor 6 by the control unit 30 cannot immediately react, the rotational speed instantaneously becomes low.
  • the reaction of the motor 6 by the control portion 30 is quickly reacted. Speed, and thus the speed becomes higher. Therefore, the rotational speed of the rotor 20 is deviated.
  • the rotational speed reading device 39 that reads the deviation of the rotational speed of the rotor 20 in step S7 is a structure for detecting the bias of the laundry L in the drum 4.
  • the drum 4 When the drum 4 is dehydrated and rotated at a high speed as a dehydrating operation in a state where the bias is large, the drum 4 is greatly shaken to apply a large vibration to the washing machine 1, generating noise and due to the energy for rotating the drum 4 is The vibration is acquired, and thus the problem that the drum 4 cannot reach the target rotational speed is generated.
  • the control unit 30 determines whether the deviation of the rotational speed of the rotor 20 during the one rotation is larger than a predetermined value or more, specifically, the maximum value Tmax and the minimum value Tmin of the rotational speed. Whether or not the difference is 3 rpm or more, it is judged whether or not the laundry L in the drum 4 is biased in size (step S8).
  • step S8 When the difference between the maximum value Tmax and the minimum value Tmin is less than 3 rpm (NO in step S8), the control unit 30 determines that there is no bias in the size of the drum 4 that needs to be corrected, and the rotation speed of the motor 6 is now The 100 rpm is increased and the dehydration operation is started (step S9). Thereby, the washing operation is transferred from the rinsing process to the dehydration process. In the dehydrating operation, the drum 4 is rotated by dehydration, and the water is released from the laundry L by centrifugal force.
  • step S8 when the difference between the maximum value Tmax and the minimum value Tmin is 3 rpm or more (YES in step S8), the control unit 30 determines that there is a bias in the size of the drum 4 that needs to be corrected, so that the number of determinations is increased. 1 (+1) (step S10).
  • the control unit 30 performs the use.
  • the corrected first correction process is to reduce the bias. Therefore, when the number of determinations is the first time, the first correction processing is performed.
  • the control unit 30 applies a brake to the rotor 20 of the motor 6 by operating a brake unit (not shown) provided in the washing machine 1 at the timing T 3 of the time chart.
  • the motor 6 is stopped (step S13).
  • the stop does not slow down the rotation of the rotor 20, but completely stops the rotation of the rotor 20.
  • the braking unit for example, a DC braking structure that applies a DC voltage to the motor 6 can be used.
  • control unit 30 rotates the rotor 20 of the motor 6 one turn to the left at a rotation speed of 45 rpm during the timing T 5 to T 6 of the time chart (step S14), and thereafter, during the timing T 7 to T 8 of the time chart. Rotate one turn to the right at 45 rpm (step S15).
  • control unit 30 loosens the laundry L on the inner circumferential surface of the drum 4 by performing a rolling process in which the rotor 20 is alternately rotated one by one to the right and left, thereby eliminating the bias.
  • step S8 determines whether or bias after the time T 9 ⁇ FIG timing period T 11, after step S5 ⁇ S7 bias detection.
  • the control unit 30 starts the dehydration operation (step S9).
  • step S8 the control unit 30 determines again that there is bias, and increments the number of determinations by one (step S10).
  • the control unit 30 determines again that there is bias, and increments the number of determinations by one (step S10).
  • the amount of the laundry L in the drum 4 is large, since the laundry L is wound on the drum 4 so as to cover the entire area of the inner circumferential surface of the drum 4, it is difficult to pass only the first correction processing. Roll over to eliminate bias.
  • control unit 30 performs the second for correcting the bias. Correction processing. Therefore, if the bias correction by the first correction processing for the determination of the first presence bias is insufficient, the control unit 30 performs the second correction processing instead of the first correction processing based on the determination of the second presence bias.
  • step S16 the control unit 30 brakes the motor 6 in the same manner as in step S13 (step S16), and corrects the drum 4 to some extent. The bias of the laundry L within. Then, the control unit 30 switches the outer ring gear 21 of the transmission mechanism 22 to the two-axis side (step S17). Then, during the timing T 13 to T 15 of the time chart, the control unit 30 rotates the rotor 20 of the motor 6 to the right by 2.75 turns at a rotation speed of 124 rpm (step S18).
  • the agitator 5 directly coupled to the rotor 20 rotates at the number of revolutions of 124 rpm in the same manner as the rotor 20, and the drum 4 is indicated by a thick broken line during the timing T 13 to T 15 of the time chart.
  • the reduction ratio described above is rotated at a rotation speed of 45 rpm after deceleration.
  • the control unit 30 brakes the motor 6 in the same manner as in step S16 (step S1), in order to completely eliminate the bias of the laundry L.
  • control unit 30 switches the outer gear 21 of the transmission mechanism 22 to the one-axis side (step S20).
  • step S8 the determination of the presence or absence of the deviation in step S8 is performed after performing the detection of the deviation in steps S5 to S7.
  • the control unit 30 starts the dehydration operation (step S9).
  • step S8 When the bias is not eliminated by the second correction processing (YES in step S8), the control unit 30 increments the number of determinations by one (step S10). When the number of determinations after the addition of 1 has not reached the predetermined number of times (NO in step S11) and is an odd number (NO in step S12), the control unit 30 performs the first correction processing. Then, the first correction processing and the second correction processing are alternately performed until the number of determinations after the addition of 1 reaches a predetermined number of times.
  • first correction processing and the second correction processing are performed once, respectively, although the first correction processing and the second correction processing are controlled to be alternately performed in this order, they may be performed once. After one correction process and the second correction process, only one of the first correction process and the second correction process is continuously performed. Alternatively, after the first correction processing and the second correction processing are performed once, the first correction processing and the second correction processing may be performed in an arbitrary order and number of times.
  • control unit 30 starts as the first The imbalance correction processing of the three correction processing (step S21).
  • control unit 30 opens the water supply valve 41 and closes the water supply valve 41 to the predetermined water level after the drain valve 43 is closed, so that the laundry L in the drum 4 is immersed in water to be easily released. In this state, the control unit 30 rotates the drum 4 and the agitator 5 to peel off and agitate the laundry L attached to the inner circumferential surface of the drum 4, thereby eliminating the bias.
  • control The unit 30 performs the processing in and after step S1.
  • control unit 30 determines the presence or absence of the bias of the laundry L in the drum 4 before the start of dehydration of the laundry L (step S9) (step S8).
  • step S8 When the control unit 30 determines that the deviation of the laundry L has not occurred (NO in step S8), the motor 6 is controlled to rotate the drum 4 to start dehydration of the laundry L (step S9). Thereby, the process for eliminating the bias of the laundry L is not in vain, and the dehydration of the laundry L is quickly started.
  • step S8 when the control unit 30 determines that there is a bias of the laundry L (YES in step S8), the motor 6 is controlled to rotate the drum 4 and the agitator 5 at mutually different speeds (steps). S18).
  • the bias of the laundry L in the drum 4 can be effectively eliminated, and the shortening of the washing time can be achieved in association with the bias of the laundry L.
  • control unit 30 determines that there is a bias of the laundry L
  • the motor 6 is controlled as the first correction processing so that the drum 4 and the agitator 5 are rotated at a constant speed (steps S14 and S15). Therefore, if the bias of the laundry L is small, the deflection of the laundry L can be quickly eliminated only by rotating the drum 4 and the agitator 5 at a constant speed.
  • control unit 30 When the control unit 30 still determines that there is a bias of the laundry L after the first correction processing, the control unit 30 controls the motor 6 as the second correction processing so that the drum 4 and the agitator 5 rotate at different speeds from each other (step S18). In other words, in the case where the deviation of the laundry L is so large that even if the first correction processing cannot be eliminated, the drum 4 and the agitator 5 are rotated at mutually different speeds by the second correction processing, so that even the large Bias can also be eliminated.
  • step S8 when the control unit 30 determines that there is a bias of the laundry L (YES in step S8), in the second correction processing, the drum 4 and the agitator 5 are rotated at mutually different speeds. Previously, the rotation of the drum 4 is urgently braked until the drum 4 is stopped (step S16). Further, in the second correction processing, the control unit 30 applies the brake to the rotation of the drum 4 after the drum 4 and the agitator 5 are rotated at different speeds (step S19). Through the brakes here, due to the roller The inner-biased laundry L becomes easier to loosen by the impact of the brake, so that the deviation of the laundry L in the drum 4 can be more effectively eliminated.
  • the control unit 30 repeatedly determines that the number of times the laundry L has been biased has reached the predetermined number of times (YES in step S11), and controls The motor 6 supplies water to the inside of the drum 4 to rotate the drum 4, thereby performing an imbalance correction process of the final method (step S21). When this is done, most of the bias can be eliminated by the first correction process and the second correction process at an early stage before the imbalance correction process is performed.
  • the predetermined number of times in the step S11 for determining whether or not to perform the imbalance correction processing is seven times in the embodiment, it may be arbitrarily set. For example, when the predetermined number of times is set to two times, the first correction processing and the second correction processing are performed once in order, and even if the correction of such bias is still insufficient, the imbalance correction processing may be performed.
  • step S18 the motor 6 may be rotated to the left by 2.75 turns at the same rotational speed instead of causing the motor 6 to be in the above-described step S18.
  • the speed of 124 rpm is rotated 2.75 turns to the right.
  • the control unit 30 may confirm whether or not the motor 6 has performed the left rotation in the previous second correction processing (step S22).
  • the control unit 30 causes the motor 6 to rotate right by 2.75 turns at a rotation speed of 124 rpm (step S18), when the last time When the motor 6 is rotated rightward (NO in step S22), the control unit 30 rotates the motor 6 to the left by 2.75 turns at a rotation speed of 124 rpm (step S18).
  • the last second correction process and the second repair this time The positive treatment can alternately rotate the motor 6 to the left and right to loosen the laundry L more effectively.
  • the control unit 30 performs the step S8 after performing the bias detection of steps S5 to S7 after steps S1 to S4. Whether there is judgment on bias.
  • the control unit 30 determines that no bias has occurred (NO in step S8), the dehydration operation is started (step S9), and when it is judged that there is bias (YES in step S8), the number of determinations is incremented by one (step S10).
  • step S11 when the number of determinations after the addition of 1 has not reached the predetermined number of times (NO in step S11), the control unit 30 does not perform the determination of step S12 (see FIG. 3). The first correction processing of steps S13 to S15 is performed, and thereafter, the second correction processing of steps S16 to S19 is continued. After that, the control unit 30 switches the outer ring gear 21 of the transmission mechanism 22 to the one-axis side (step S20), and returns to step S5.
  • the bias when there is a bias, the bias can be quickly and effectively eliminated by continuously performing the first correction processing and the second correction processing. In addition, further time reduction can be achieved.
  • control unit 30 performs the determination of the bias of step S8 after performing the bias detection of steps S5 to S7, and determines that there is no bias (in the step). If "NO" in S8, the dehydration operation is started (step S9), and when it is judged that there is a bias (YES in step S8), the number of determinations is incremented by one (step S10).
  • the control unit 30 when the number of determinations after the addition of 1 has not reached the predetermined number of times (NO in step S11), the control unit 30 first performs the second correction processing of steps S16 to S19. After that, after the external gear 21 of the transmission mechanism 22 is switched to the one-axis side (step S20), the first correction processing of steps S14 to S15 is performed. In this case, since the size correction which cannot be eliminated in the first correction processing can be quickly eliminated by the second correction processing from the beginning, it is not necessary to pass the first correction processing and the second correction processing in order, and thus it is possible to realize Further time is shortened. Further, in any of the modifications of FIGS. 7 and 8, the processing described with reference to FIG. 5 or FIG. 6 may be performed as the second correction processing.
  • the rotation speed of 100 rpm when the rotor 20 of the motor 6 is rotated in step S6 is only an example, and the centrifugal force when the laundry L is rotated by the drum 4 is pushed to the inner circumferential surface of the drum 4. On the top, it can also be a higher rotation speed of 200 rpm or 400 rpm. Further, since the rotation speed of 45 rpm in step S14 or S15 is only an example, it can be arbitrarily changed as needed.
  • the transmission mechanism 22 and the gear switching device 7 are used in order to rotate the drum 4 and the agitator 5 at a constant speed and to rotate relative to each other at different speeds. It is also possible to arrange the motor 6 for the drum 4 and the agitator 5 instead of the transmission mechanism 22 and the gear switching device 7, so that the drum 4 and the agitator 5 are independently rotated by the respective dedicated motors, and the control unit 30 controls each dedicated The rotational speed of the motor, thereby freely adjusting the respective rotational speeds of the drum 4 and the agitator 5.
  • drum 4 of the above embodiment is obliquely arranged to be rotatable about the axis 13 extending in the oblique direction K with respect to the horizontal direction H, it is also possible to horizontally extend the axis 13 in the horizontal direction H.
  • the drum 4 is disposed.
  • the washing machine 1 may be a washing and drying machine having a drying function of the laundry L.
  • washing machine 1: washing machine; 4: drum; 5: agitator; 6: motor; 13: axis; 30: control unit; 39: speed reading device; H: horizontal direction; K: oblique direction; L: washing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

La présente invention vise à fournir une machine à laver apte à éliminer efficacement les déviations du linge à l'intérieur d'une cuve. La machine à laver (1) comprend : une cuve (4) recevant le linge (L), un agitateur (5) disposé à l'intérieur de la cuve (4), un moteur (6) entraînant la cuve (4) et l'agitateur (5) en rotation, un dispositif de lecture de vitesse de rotation (39) utilisé pour détecter la déviation du linge (L) à l'intérieur de la cuve (4), et une unité de commande (30). Avant l'essorage du linge (L), l'unité de commande (30) vérifie si la déviation du linge (L) se produit à l'intérieur de la cuve (4) sur la base du résultat de détection obtenu par le dispositif de lecture de vitesse de rotation (39) ; si l'unité de commande (30) détermine qu'il n'y a pas de déviation du linge (L), alors l'unité de commande (30) commande le moteur (6) pour tourner la cuve (4) et essorer le linge (L) ; et, si l'unité de commande (30) détermine que la déviation du linge (L) s'est produite, alors l'unité de commande (30) applique un freinage à la rotation de la cuve (4) avant d'entraîner la cuve (4) et l'agitateur (5) en rotation à différentes vitesses.
PCT/CN2014/095787 2014-02-25 2014-12-31 Machine à laver WO2015127823A1 (fr)

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JP2014-034292 2014-02-25
JP2014034292A JP6379436B2 (ja) 2014-02-25 2014-02-25 洗濯機

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CN108474166A (zh) * 2015-12-16 2018-08-31 青岛海尔洗衣机有限公司 滚筒式洗衣机
CN109477279A (zh) * 2016-07-18 2019-03-15 三星电子株式会社 洗衣机

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