WO2017107989A1 - 洗衣机的控制方法 - Google Patents

洗衣机的控制方法 Download PDF

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Publication number
WO2017107989A1
WO2017107989A1 PCT/CN2016/111802 CN2016111802W WO2017107989A1 WO 2017107989 A1 WO2017107989 A1 WO 2017107989A1 CN 2016111802 W CN2016111802 W CN 2016111802W WO 2017107989 A1 WO2017107989 A1 WO 2017107989A1
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WO
WIPO (PCT)
Prior art keywords
water
balancer
water injection
washing machine
unbalance amount
Prior art date
Application number
PCT/CN2016/111802
Other languages
English (en)
French (fr)
Inventor
浅见雅彦
Original Assignee
青岛海尔洗衣机有限公司
海尔亚洲株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, 海尔亚洲株式会社 filed Critical 青岛海尔洗衣机有限公司
Priority to US16/065,786 priority Critical patent/US10619285B2/en
Priority to CN201680075501.3A priority patent/CN108431320B/zh
Priority to EP16877799.3A priority patent/EP3396043B1/en
Publication of WO2017107989A1 publication Critical patent/WO2017107989A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
    • D06F37/245—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • 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—Unbalance; 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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • D06F37/14—Ribs or rubbing means forming part of the receptacle

Definitions

  • the present invention relates to a control method for a washing machine which can eliminate the imbalance of the washing tub during the dehydration process and suppress the vibration and noise caused by the eccentricity of the washing tub during dehydration.
  • the ordinary washing machine installed in an ordinary household or a self-service laundry room generates vibration and noise due to the deviation of the laundry in the dewatering bucket during dehydration. This vibration and noise may develop into disputes depending on the location where the washing machine is installed and the surrounding environment. Further, in the case where the deviation of the laundry is large at this time, the eccentricity of the washing tub is large at the time of rotation, and a large torque is required for the rotation, so that the dehydrating operation cannot be started.
  • Patent Document 1 a technique is disclosed in which an unbalance amount and an unbalanced position of laundry in a washing tub are detected at the time of dehydration, and in the case where there is an imbalance, braking is applied to the rotation of the washing tub to lower the centrifugal force.
  • the pieces of clothing that cause the imbalance are dropped and dispersed by gravity.
  • Patent Document 2 discloses a technique of determining whether or not there is an imbalance of the washing tub at the time of low-speed rotation, stopping the motor when the imbalance is detected, and injecting water into the washing tub in order to eliminate the unbalanced state. Unlock the clothing mass.
  • the unbalance detection and the dispersion operation can be performed only when the dewatering bucket rotates at a low speed during the dehydration process, and may be generated again after being subjected to the high-speed rotation start of the dewatering bucket, depending on the type of the laundry or the like. unbalanced.
  • Patent Document 1 Japanese Patent Laid-Open No. Hei 9-290089
  • Patent Document 2 Japanese Patent No. 5650927
  • An object of the present invention is to effectively solve such a problem, and an object of the invention is to provide a control method for a washing machine capable of eliminating a washing tub without decelerating or stopping rotation even if there is a bias of laundry in a dewatering bucket during a spin-drying operation.
  • the imbalance suppresses the generation of vibration and noise caused by the eccentricity of the washing tub, and can effectively avoid the delay of the running time.
  • the present invention has been made in view of the above problems.
  • control method of the washing machine of the present invention is a control method of a washing machine comprising: a hollow balancer having three or more stages arranged at different angles around the axis on the inner circumferential surface of the washing tub;
  • the water injection device independently injects the adjustment water into each of the balancers.
  • the control method of the washing machine is characterized in that, in the dehydration process, an unbalanced position detecting step is performed to detect an unbalanced position of the washing tub; and a balancer selecting step is determined according to the unbalanced position detecting step to determine that water injection is required a balancer; a first water injection step, according to the balancer selection step, injecting the adjustment water to any one of the plurality of balancers when it is required to inject water into the at least two balancers; Measuring the detecting step, detecting an evolution of the unbalance amount of the washing tub in the first water filling step; and the water injecting switching step, when the unbalance amount detected by the unbalance amount detecting step is turned up, from the first balancer to the first The second balancer switches the water injection of the adjustment water; and the second water injection step injects the adjustment water to the second balancer.
  • the present invention is characterized in that the first balancer is a balancer located at a position farthest from the unbalanced position.
  • the present invention is characterized in that it has a time switching step of switching the water injection of the adjustment water from the first balancer to the second balancer when a predetermined time has elapsed from the first water injection step to the water injection switching step.
  • the present invention is characterized in that the balancer is a baffle plate which can protrude from the inner peripheral surface of the washing tub and which can stir the laundry.
  • the present invention is characterized in that the balancers are disposed at equal angular intervals along the inner circumferential surface of the washing tub.
  • the time required for water injection can be adapted to the elimination of the imbalance.
  • the imbalance of the washing tub can be eliminated without decelerating or stopping the rotation, and the vibration caused by the eccentricity of the washing tub can be suppressed, Noise is generated and the delay of running time can be effectively avoided.
  • the time required for the user to perform the washing is not delayed, the user's time is effectively utilized and the flow efficiency of the self-service laundry shop is improved.
  • the water injection switching step is simultaneously performed by directly injecting water to the balancer which is most helpful in eliminating the imbalance, thereby rapidly reducing the amount of unbalance. It can make it only take a long time to fill the water, thus helping to eliminate the imbalance more quickly.
  • the balancer is a baffle capable of agitating the laundry
  • the balancer is a baffle capable of agitating the laundry
  • the control from the determination of the unbalanced position to the determination of the balancer requiring water injection can be performed more easily, and the elimination of the imbalance can be efficiently performed.
  • FIG. 1 is a perspective view showing an appearance of a washing machine 1 according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the configuration of the same washing machine 1.
  • Fig. 3 is a partial longitudinal sectional perspective view showing the same washing machine 1.
  • Fig. 4 is a view of a part of the same washing machine 1 as seen from above.
  • Fig. 5 is a partial longitudinal sectional view of the same washing machine 1.
  • Fig. 6 is a block diagram of an electrical system of the same washing machine 1.
  • Fig. 7 is a flow chart showing a control flow in the dehydration process of the same washing machine 1.
  • Fig. 8 is a flow chart showing a control flow in the dehydration process of the same washing machine 1.
  • FIG. 9 is a view for explaining a control flow in the dehydration process of the same washing machine 1.
  • FIG. 10 is a view showing an evolution of an unbalance amount (M) in the control of the same washing machine 1.
  • FIG. 1 is a perspective view showing an appearance of a vertical washing machine (hereinafter referred to as "washing machine") 1 according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing a configuration of the washing machine 1 of the present embodiment.
  • Fig. 3 is a partial longitudinal sectional perspective view of the washing machine 1 of the embodiment.
  • 4 is a view of a part of the washing machine 1 of the present embodiment as seen from above, wherein (a) of FIG. 4 is a plan view, and (b) of FIG. 4 is a cross-sectional view of the dewatering tub 2 of the washing machine 1.
  • Fig. 5 is a partial longitudinal sectional view of the washing machine 1 of the embodiment.
  • the washing machine 1 of the present embodiment includes a washing machine main body 1a, an outer tub 3 constituting the washing tub 1b, a dewatering tub 2, a water receiving ring unit 5, a nozzle unit 6, a driving unit 40, and a control device (see Fig. 6).
  • the washing machine body 1a shown in Fig. 1 has a substantially rectangular parallelepiped shape.
  • An opening 11 for taking in and taking out the laundry to the dewatering tub 2 is formed on the upper surface 10a of the washing machine main body 1a, and an opening and closing cover 11a capable of opening and closing the opening 11 is attached.
  • the outer tub 3 is a bottomed cylindrical member constituting the outer shape of the washing tub 1b disposed inside the washing machine main body 1a, and can store washing water therein.
  • an acceleration sensor 12 capable of detecting acceleration in both horizontal and vertical directions is attached to the outer peripheral surface 3a of the outer tub 3.
  • the dewatering tub 2 is a bottomed cylindrical member that is disposed coaxially with the outer tub 3 and that constitutes the washing tub 1b together with the outer tub 3 and is rotatably supported.
  • the dewatering tub 2 can accommodate laundry therein, and its wall surface 2a has a plurality of water passing holes 2b (refer to Fig. 3).
  • a pulsator (stirring blade) 4 is rotatably disposed in the center of the bottom portion 2c of the dewatering tub 2, a pulsator (stirring blade) 4 is rotatably disposed.
  • the pulsator 4 has a pulsator main body 4b having a substantially disk shape, a plurality of upper blade portions 4c formed on the upper surface of the pulsator main body 4b, and a plurality of lower surfaces formed on the lower surface of the pulsator main body 4b. Blade portion 4a.
  • Such a pulsator 4 agitates the washing water stored in the outer tub 3 to generate a water flow.
  • baffles 7 are provided at equal intervals (equal angles) in the circumferential direction, and the baffles 7 serve as The water conduit portion is equivalent to a balancer in the present invention.
  • Each of the baffles 7 is formed in such a manner as to extend from the bottom portion 2c of the dewatering tub 2 to the upper end portion in the up and down direction, and protrudes from the inner peripheral surface 2a1 of the dewatering tub 2 toward the axis S1. Further, each of the baffles 7 has a hollow shape, and the cross-sectional shape is formed in an arc shape.
  • the baffle as a balancer also functions to agitate the laundry during the dehydration process.
  • the shape of the baffle 7 is
  • the axis S1 of the dewatering tub 2 protrudes less and widens in the circumferential direction of the dewatering tub 2, whereby the accommodation space of the dewatering tub 2 can be suppressed from being narrowed.
  • an opening portion 71 having an opening is formed in the vicinity of the bottom portion 2c of the dewatering tub 2, more specifically below the pulsator main body 4b. Further, a laterally long circulation nozzle 70 is formed at the upper end portion of the baffle 7. Therefore, in the washing process in a state where the drain valve 50a (refer to FIG. 2) is closed and the washing water is accumulated in the outer tub 3, as shown by an arrow in FIG. 3, the lower blade portion 4a of the pulsator 4 is stirred. The washing water enters from the opening 71 and rises in the baffle 7, and is discharged from the circulating water port 70, thereby rinsing the laundry.
  • the washing water circulates in the dewatering tank 2. That is, the baffle 7 has a function of circulating washing water.
  • the water conduit portion having the opening portion 71 and the circulation nozzle 70 and capable of being rinsed in this manner is also applicable to a conventional washing machine, but usually only one is provided.
  • a spacer 7a is provided inside the baffle plate 7, and the spacer 7a extends from the position where the communication members 5a1, 5b1, and 5c1 to be described later are connected to the circulation nozzle 70 to the inner peripheral surface 2a1 of the dewatering tub 2. Close to the location.
  • the spacer 7a extends from the upper end edge of the circulation nozzle 70, and its free end 7a1 side is bent downward.
  • a gap 7b (see FIG. 2) is formed between the free end 7a1 of the spacer 7a and the inner peripheral surface 2a1 of the dewatering tub 2, and the water to be described later supplied from the water receiving ring unit 5 flows downward through the gap 7b. .
  • the water receiving ring unit 5 is a device constituting the water injection device 1c of the present invention, and is formed by an annular water guiding groove 5a, 5b, 5c (see (a) of Fig. 4) that faces upward, along the axis S1 of the dewatering tub 2. As shown in FIG. 3, the apparatus which overlaps three layers is fixed to the upper end part of the inner peripheral surface 2a1 of the dehydration tank 2.
  • the water guiding grooves 5a, 5b, and 5c are provided in the same number as the baffles 7, and a water passing path through which the regulating water flows independently to any one of the baffles 7 is formed inside.
  • Such a water receiving ring unit 5 are almost the same as those of a known liquid balancer attached to a conventional washing machine.
  • a liquid balancer instead of a liquid balancer, it is attached to a mounting position of a normal liquid balancer.
  • the liquid balancer has a function of passively eliminating the imbalance of the dewatering tub 2 at the time of dehydration, as described below, the effect is small as compared with the water receiving ring unit 5 capable of actively eliminating the imbalance of the dewatering tub 2.
  • the water receiving ring unit 5 and the upper end portion of the baffle plate 7 are connected by the communication members 5a1, 5b1, and 5c1, respectively.
  • the communication members 5a1, 5b1, 5c1 are connected to the baffle 7 above the circulation nozzle 70.
  • the nozzle unit 6 is a device constituting the water injection device 1c of the present invention, and is a device that independently injects water into the water guides 5a, 5b, and 5c.
  • the nozzle unit 6 has three water injection nozzles 6a, 6b, 6c disposed above the water guiding grooves 5a, 5b, 5c and water supply valves respectively connected to the water injection nozzles 6a, 6b, 6c. 26a, 26b, 26c.
  • the water injection nozzles 6a, 6b, and 6c are disposed in the same number as the water guides 5a, 5b, and 5c, and are disposed at positions where water can be injected into the respective water guides 5a, 5b, and 5c, respectively.
  • tap water can be used as a water adjustment.
  • a reversing water supply valve may be employed as the water supply valves 26a, 26b, and 26c.
  • the water injection device 1c of the present invention is composed of a water receiving ring unit and a nozzle unit.
  • the water injection nozzles 6a, 6b, and 6c of the nozzle unit 6 are injected during the dehydration process in which the drain valve 50a is opened and the wash water in the outer tub 3 is discharged from the drain port 50.
  • the adjustment water in the water guiding grooves 5a, 5b, and 5c of the water receiving ring unit 5 flows into the baffle 7 via the communicating members 5a1, 5b1, and 5c1.
  • the adjustment water flows into the baffle 7 from the water guide 5c via the communication member 5c1 as indicated by an arrow in FIG.
  • the baffle plate 7 is a container baffle structure capable of accumulating water by centrifugal force. Further, when the dehydration process is nearing completion and the rotation speed of the dewatering tub 2 is lowered, the centrifugal force in the baffle plate 7 is gradually attenuated, the adjustment water flows out from the opening portion 71 by gravity, and is discharged to the outside of the tub 3 via the drain pipe 5. At this time, the adjusted water flows into the lower side of the pulsator main body 4b via the opening 71. Therefore, the water is adjusted so as not to wet the laundry located above the pulsator main body 4b.
  • the driving portion 40 shown in FIG. 2 rotates the pulleys 15, 15 and the belt 15b by the motor 10, and rotates the drive shaft 17 that extends toward the bottom portion 2c of the dewatering tub 2, thereby imparting driving force to the dewatering tub 2 and the pulsator 4. , the dewatering bucket 2, the pulsator 4 is rotated.
  • the washing machine 1 mainly rotates only the pulsator 4 during the washing process, and the dewatering tub 2 and the pulsator 4 are integrally rotated at high speed during the dehydration process.
  • a proximity switch 14 is provided in the vicinity of one of the pulleys 15, and the proximity switch 14 can detect the passage of the label 15a formed on the pulley 15.
  • Fig. 6 is a block diagram showing an electrical configuration of the washing machine 1 of the embodiment.
  • the operation of the washing machine 1 is controlled by a control device 30 including a microcomputer.
  • the control device 30 includes a central control unit (CPU) 31 that controls the entire system, and the control device 30 is connected to a memory 32 that stores a low-speed rotation setting before the start of the dehydration operation required for the rotation control of the dewatering tub 2.
  • the control device 30 performs the predetermined operation operation in the program stored in the memory 32 by the microcomputer. At this time, data or the like actually used when the above program is executed is temporarily stored in the memory 32.
  • the central control unit 31 outputs a control signal to the rotational speed control unit 33, and further outputs the control signal to the motor control unit (motor control circuit) 34 to perform rotation control of the motor 10.
  • the rotation speed control unit 33 inputs a signal indicating the number of revolutions of the motor 10 from the motor control unit 34 in real time, and constitutes a control element.
  • the acceleration sensor 12 is connected to the unbalance amount detecting unit 35, and the acceleration sensor 12 and the proximity switch 14 are connected to the unbalanced position detecting unit 36.
  • the unbalance amount (M) can be calculated in the unbalance amount detecting unit 35 based on the magnitude of the acceleration from the horizontal direction and the vertical direction of the acceleration sensor 12. This unbalance amount is output to the unbalance amount determining unit 37.
  • the unbalanced position detecting unit 36 calculates the angle of the unbalanced direction based on the signal indicating the position of the tag 15a input from the proximity switch 14, and outputs the unbalanced position signal to the water injection control unit 38.
  • the water filling control unit 38 bounces either one of the dewatering tanks 2 based on the control program stored in advance.
  • the board 7 judges the water supply and the amount of water supplied thereto. Then, the selected water supply valves 26a, 26b, and 26c are opened to start the injection of the adjustment water.
  • the water injection nozzles 6a, 6b, and 6c selected based on the calculation result of the unbalance amount are started to inject the adjustment water into the water guiding grooves 5a, 5b, and 5c of the water receiving ring unit 5, and
  • the flow plate 7 eliminates the imbalance, the injection of the adjustment water is stopped.
  • the agglomerates LD (X) of the laundry which constitute the main cause of the imbalance are located in the baffle 7 (B) of the dewatering tank 2 and the baffles.
  • the water injection control unit 38 controls to supply the adjustment water to the baffle plate 7 (A).
  • the agglomerate LD (Y) of the laundry is located in the vicinity of the baffle 7 (A)
  • the water is supplied to both the baffle 7 (B) and the baffle 7 (C). control.
  • the central control unit 31 shown in FIG. 6 opens the water supply valve X and the water supply valve Z as described in the parameter table of FIG.
  • the determination of the unbalanced position is divided into the following two cases by performing nine divisions as shown in FIG. 9: determining that the balancer that needs to eliminate the unbalanced position (N), that is, the baffle is An unbalanced position (N), a balancer that determines the need to eliminate the unbalanced position (N) For the two unbalanced positions (N).
  • the region Y that determines that the baffle plate that needs to eliminate the unbalanced position (N) is one of the unbalanced positions (N) refers to the regions P(A), P(B), and P(C).
  • the area Y which determines the unbalanced position (N) where the unbalanced position (N) needs to be eliminated refers to the areas P(AB), P(BA), P(BC), P(CB), P(CA), and P. (AC).
  • the order of description of the part which marked the arbitrary two ABC is the order of the baffle which water-filled by the water injection device 1c as it is.
  • the baffle 7 which is filled with water by the water supply valve X corresponding to the first written character corresponds to the first balancer, and corresponds to the second written character.
  • the water supply valve Z water injection baffle 7 corresponds to the second balancer.
  • the balancer corresponding to the characters not described in the ABC corresponds to the other balancer, and in the present embodiment, the baffle 7 is closest to the unbalanced position (N).
  • the baffle 7 corresponding to the first balancer is the baffle 7 farthest from the unbalanced position (N).
  • the control method of the washing machine of the present embodiment is characterized in that, in the dehydration process, an unbalanced position detecting step is performed to detect an unbalanced position (N) of the washing tub 1b, and a balancer selecting step according to the unbalanced position a detecting step to determine a balancer that requires water injection, that is, a baffle 7; a first water injection step according to which the water supply valve in the plurality of baffles is passed when water is required to be injected to the at least two baffles 7 X injects the adjustment water into the baffle plate 7; the unbalance amount detecting step detects the evolution of the unbalance amount M of the washing tub 1b in the first water injecting step; the water injecting switching step shifts the unbalance amount M detected by the unbalance amount detecting step At the time of ascent, in order to switch the water injection of the adjustment water from the first balancer to the second balancer, the water injection is switched from the water supply valve X to the water supply valve Y;
  • FIG 7 and 8 are flowcharts showing the control of the washing machine 1 of the present embodiment.
  • the central control unit 31 when the central control unit 31 receives an input signal from a dehydration button (not shown) or a signal intended to start the dehydration process during the washing program operation, the process proceeds to step SP1 to start the dehydration process.
  • step SP1 the central control unit 31 accelerates the rotation of the dewatering tub 2 after the dewatering tub 2 is slowly reversed.
  • step SP2 the central control unit 31 rotates the dewatering tub 2 at a low speed based on the low-speed rotation setting value (N1).
  • step SP3 the central control unit 31 detects the unbalance amount (M) based on the acceleration value (x component of the acceleration sensor) given by the acceleration sensor 12.
  • step SP4 the central control unit 31 compares the unbalance amount (M) with the unbalance amount set value (ma) stored in the memory 32, and determines whether or not M ⁇ ma is established.
  • the process moves to step SP6.
  • the unbalance amount setting value (ma) is a threshold value indicating that the deviation of the laundry is so large that it is difficult to eliminate the supply of the adjustment water to the baffle plate 7.
  • the process proceeds to step SP5, it means that it is determined that the deviation of the laundry is so large that it is difficult to eliminate the supply of the adjustment water to the baffle plate 7.
  • step SP5 after the rotation of the dewatering tub 2 is stopped, the central control unit 31 returns to step SP1 and repeats steps SP1 to SP4.
  • step SP6 When it is determined in step SP6 that the elapsed time after the start of the low-speed rotation of the dewatering tub 2 is equal to or longer than the preset set time for the low-speed rotation processing, the central control unit 31 proceeds to step SP7.
  • step SP7 the central control unit 31 rotates the dewatering tub 2 at a high speed based on the high-speed rotation setting value (N2).
  • step SP8 the central control unit 31 detects the unbalance amount (M) and the unbalanced position (N) based on the acceleration value given by the acceleration sensor 12. That is, this step SP8 corresponds to the unbalanced position detecting step of the present invention.
  • step SP9 the central control unit 31 compares the unbalance amount (M) with the above-described imbalance amount setting value (mb) stored in the memory 32, and determines whether or not M ⁇ mb is established.
  • M ⁇ mb the unbalance amount setting value
  • the unbalance amount setting value (mb) is a value smaller than the unbalance amount setting value (ma), and indicates that the deviation of the laundry is small enough that no noise is generated even if the adjustment water is not supplied to the baffle plate 7. Threshold.
  • the unbalance amount setting value (mb) is a value smaller than the unbalance amount setting value (ma), and indicates that the deviation of the laundry is small enough that no noise is generated even if the adjustment water is not supplied to the baffle plate 7. Threshold.
  • step SP10 based on the unbalanced position (N), the central control unit 31 replaces the water supply valve X, the region Y, and the water supply valve Z with the values of the parameter table as shown in FIG. 9, and stores them in, for example, the memory 32. That is, this step SP10 corresponds to the balancer selection step of the present invention.
  • step SP11 the central control unit 31 opens the water supply valve X described in the parameter table of Fig. 9 . That is, this step SP11 corresponds to the first water injection step of the present invention.
  • step SP12 shown in FIG. 8 the central control unit 31 recalculates the unbalance amount (M) based on the acceleration value given by the acceleration sensor 12. That is, this step SP12 corresponds to the unbalance amount detecting step of the present invention which detects the evolution of the unbalance amount (M) of the washing tub 1b. It should be noted that, in this step SP12, generally, the unbalance amount (M) tends to gradually decrease at the beginning.
  • step SP13 the central control unit 31 compares the unbalance amount (M) with the above-described unbalance amount setting value (mb) stored in the memory 32, and determines whether or not M ⁇ mb is established.
  • the process proceeds to step SP23 which will be described later.
  • M ⁇ mb does not hold
  • the process proceeds to step SP14.
  • the unbalance amount setting value (mb) is a value smaller than the unbalance amount setting value (ma), and indicates that the deviation of the laundry is small enough that no noise is generated even if the adjustment water is not supplied to the baffle plate 7. Threshold. In other words, when it is judged that the partial load is small or does not exist, even if water is not supplied to the baffle plate 7, noise is not generated, and the process proceeds to step SP23.
  • step SP14 when the central control unit 31 determines that the unbalance amount (M) detected by step SP12 has not increased, the process proceeds to step SP15. When it is judged that the unbalance amount (M) is turned to increase, the process proceeds to step SP16.
  • step SP15 the central control unit 31 determines that the elapsed time after the water supply valve X is opened is set. When the time is longer than the time, the process goes to step SP16. When the elapsed time is less than the set time, the process returns to step SP12.
  • the set time is, for example, the time taken for one of the baffles 7 to be substantially filled with the adjusted water.
  • step SP16 the central control unit 31 reads out which of the regions Y indicated by the parameter table shown in Fig. 9 by the unbalanced position (N) stored in the memory 32, which was replaced by the above-described step SP12, is judged to be unbalanced.
  • the position (N) is the region Y in which the water supply valve Z is not set, that is, the region P (A), P (B), or P (C)
  • the process proceeds to a step SP21 which will be described later.
  • the unbalanced position (N) is the region Y in which the water supply valve Z is set, that is, the region P(AB), P(BA), P(BC), P(CB), P(CA), or P(AC) , moves to step SP17.
  • step SP17 the central control unit 31 determines whether or not the water supply valve X is in the water injection.
  • the process moves to step SP18.
  • the process moves to step SP19.
  • step SP18 the water supply valve X described in the parameter table of Fig. 9 is closed, and the water supply valve Z is opened.
  • the water supply valve X is the water supply valve 26a corresponding to the baffle 7 (A)
  • the water supply valve Z corresponds to the baffle 7 ( a water supply valve 26b of B)
  • the baffle 7 (B) being located second to a distance P (AB) from a position closer to the region P (AB) than the baffle 7 (A) corresponding to the water supply valve 26a position. That is, this step SP18 corresponds to the second water injection step of the present invention.
  • step SP19 the central control unit 31 determines whether or not the water supply valve Z is in the water injection.
  • the process moves to step SP20.
  • step SP21 which will be described later.
  • step SP20 the water supply valve Z described in the parameter table of Fig. 9 is closed, and the other valves are opened.
  • the water supply valve Z is the water supply valve 26b corresponding to the baffle 7 (B), and the other valves correspond to the baffle 7
  • the baffle 7 (C) is located closest to the distance P (AB) which is a position closer to the region P (AB) than the baffle 7 (B) of the water supply valve 26b. That is, this step SP20 is equivalent to the other The water injection step.
  • step SP21 shown in Fig. 7 the central control unit 31 turns all of the water supply valves X and Z into a closed state.
  • step SP22 the central control unit 31 returns to step SP1 after stopping the rotation of the dewatering tub 2.
  • step SP23 shown in Fig. 7 the central control unit 31 sets all of the water supply valves X and Z to the closed state.
  • step SP24 the central control unit 31 rotates the dewatering tub 2 by the maximum number of revolutions for a predetermined time to perform dehydration processing. Then, the dehydration treatment is ended.
  • Fig. 10 a series of changes in the amount of eccentricity from step SP11 to step SP23 are shown.
  • the portion indicated by the broken line shows the change when the water injection to the baffle water-filled by the water supply valve X exceeds the required amount.
  • the step SP14 of detecting the time point at which the unbalance amount (M) rises and switching the water injection valve at the time point it is possible to quickly inject water into the required baffle plate 7 without spending an unbalance amount (M). ) None increases in time.
  • the unbalance amount (M) at the time of water injection by the water supply valve Z corresponding to the water injection to the second balancer is not smaller than the unbalance amount setting value (mb)
  • the third water supply valve opening for water injection has not been performed so far.
  • the baffles closest to the unbalanced position (N) from the baffle 7 farthest from the distance unbalanced position (N) is water injection.
  • the baffle is switched when the one of the unbalanced amount (M) is turned up or the predetermined time has elapsed, and the unbalance amount (M) is made smaller than the unbalance amount setting value by the series of water injections (mb)
  • the dehydration process is started again from the beginning.
  • the dewatering tank 2 is accelerated to a high-speed dehydration rotation. Dehydration is carried out. Further, when the dehydration is completed and the dewatering tub 2 starts to decelerate and the centrifugal force is less than the gravitational acceleration, the adjustment water in the baffle 7 flows out from the opening portion 71 to the lower portion and is discharged.
  • the washing machine 1 can be designed: Regardless of the stage from the start to the end of the dehydration operation, vibration and noise can be prevented, and the delay of the operation time can be effectively avoided.
  • the next time the unbalance amount (M) rises during the water injection process of the first water-injecting baffle 7, the next time
  • the baffle 7 switches the water injection, and by controlling as described above, even when it is necessary to fill the plurality of balancers, the time required for water injection can be adapted to the elimination of the imbalance.
  • the unbalance of the dewatering tub 2 of the washing tub 1b can be eliminated without decelerating or stopping the rotation, and the dewatering tub 2 can be suppressed.
  • the generation of vibration and noise caused by eccentricity, and the delay of the operation time can be effectively avoided.
  • the time required for the user's laundry is not delayed, it is also possible to contribute to the effective use of the user's time and the improvement of the flow efficiency of the self-service laundry shop.
  • the first balancer that is, the baffle plate 7 supplied from the water supply valve X
  • the baffle 7 located at the position farthest from the unbalanced position (N)
  • the passage amount is most helpful to the unbalance amount (M).
  • the reduced baffle 7 is filled with water to rapidly reduce the amount of unbalance (M), and at the same time, the water injection switching step, step SP18, can only fill the water for a long time, so that the imbalance is eliminated more quickly.
  • the above-described step SP15 that is, the time switching step, is also provided, and therefore, even to the first balancer, that is, the water supply valve X
  • the water injection baffle 7 performs the water injection to effectively eliminate the imbalance, the water injection is prevented from being too long, which helps to further eliminate the imbalance.
  • the baffle plate 7 for agitating the laundry originally mounted in the washing machine 1 is used as the balancer. Therefore, by effectively utilizing the conventional structure, not only the size of the device is prevented, but also the size of the device is prevented. It also effectively avoids an increase in the number of parts that need to be manufactured, and also contributes to more efficient manufacturing.
  • control method of the present invention can be applied to a tilting drum type fully automatic washing machine for household use, and is widely used.
  • the water receiving ring unit 5 is constituted by three water guiding grooves 5a, 5b, 5c, and three baffles 7 are provided corresponding thereto, but are not limited thereto, as long as they are set to three More than one baffle 7 is provided, and the gutter is provided in the same number as the baffle 7.
  • the water receiving ring unit 5 may have a structure in which a plurality of water guiding grooves 5a, 5b, and 5c are stacked in the vertical direction, whereby the lateral width of the water receiving ring unit 5 can be reduced, and the opening of the dewatering tub 2 can be enlarged.
  • the baffle 7 may have a shape that widens upward or widens downward.
  • SP14, SP16, SP17, SP18 water injection switching steps
  • SP15, SP16, SP17, SP18 time switching steps
  • SP18 Second water injection step.

Abstract

一种洗衣机的控制方法，其能抑制由洗涤桶的偏心引起的振动、噪音的产生，并且能有效地避免运转时间的延迟。本发明的洗衣机(1)的控制方法在脱水过程中具备：不平衡位置检测步骤(SP8)，检测不平衡位置(N)；平衡器选择步骤(SP10)，确定需要注水的折流板(7)；第一注水步骤(SP11)，在需要对至少两个折流板(7)注水时，通过供水阀(X)向距离不平衡位置(N)最远的折流板(7)注入调整水；不平衡量检测步骤(SP12)，检测洗涤桶的不平衡量(M)的演变；以及注水切换步骤(SP18)，在通过该不平衡量检测步骤(SP12)检测到的不平衡量(M)转向上升时，从供水阀(X)向供水阀(Z)切换注水。

Description

洗衣机的控制方法 技术领域
本发明涉及一种洗衣机的控制方法，其能消除脱水过程中洗涤桶的不平衡，抑制脱水时由洗涤桶的偏心引起的振动、噪音。
背景技术
设置于普通家庭或自助洗衣房等的普通洗衣机因脱水时洗涤物在脱水桶内偏倚而产生振动、噪音。该振动、噪音根据不同的洗衣机设置场所、周边环境，有时会发展成纠纷。此外，在此时洗涤物的偏倚较大的情况下，旋转时洗涤桶的偏心大，旋转需要较大的转矩，因此无法开始脱水运转。
因此，在专利文献1中，公开了如下技术：在脱水时检测洗涤桶内的衣物的不平衡量以及不平衡位置，在存在不平衡的情况下，对洗涤桶的旋转施加制动以使离心力降低，使导致不平衡的衣物团块通过重力落下并分散。
此外，在专利文献2中，公开了如下技术：在低速旋转时判定有无洗涤桶的不平衡，在检测到不平衡的情况下，停止电机，并且为了消除不平衡状态而向洗涤桶注水以解开衣物团块。
然而，在专利文献1所公开的结构中，只能在脱水过程中脱水桶低速旋转时进行不平衡检测和分散作业，在脱水桶高速旋转起动后，受衣物种类等的影响，有可能再次产生不平衡。
此外，在上述专利文献1、2所公开的结构中，由于当检测到不平衡时使脱水桶的旋转减速或停止，因此每次重复脱水运转都需要起动电力，不仅耗电变大，而且存在洗涤所需的时间即运转时间延迟的问题。而且，在专利文献2中，除了耗电的增加，还存在用水量增加的问题。
并且，特别是对设置于自助洗衣房的洗衣机而言，上述这样的运转时间的延迟会导致店铺中顾客流转效率的降低。
现有技术文献
专利文献
专利文献1：日本特开平9-290089号公报
专利文献2：日本专利第5650927号公报
发明内容
发明所要解决的问题
本发明的目的在于有效地解决这样的问题，其目的在于提供一种洗衣机的控制方法，即使在脱水运转时脱水桶内存在洗涤物的偏置，也能不使旋转减速或停止地消除洗涤桶的不平衡，抑制由洗涤桶的偏心引起的振动、噪音的产生，并且能有效地避免运转时间的延迟。
用于解决问题的方案
本发明是鉴于上述问题而采用了如下方案的发明。
即，本发明的洗衣机的控制方法是下述洗衣机的控制方法，所述洗衣机具备：中空的平衡器，在洗涤桶的内周面，绕着轴线以不同的角度相位配设有三个以上；以及注水装置，独立地向各个所述平衡器注入调整水。所述洗衣机的控制方法的特征在于，在脱水过程中，具备：不平衡位置检测步骤，检测所述洗涤桶的不平衡位置；平衡器选择步骤，根据该不平衡位置检测步骤来确定需要注水的所述平衡器；第一注水步骤，根据该平衡器选择步骤，在需要对至少两个所述平衡器注水时，向多个平衡器中的任意的第一平衡器注入所述调整水；不平衡量检测步骤，检测该第一注水步骤中所述洗涤桶的不平衡量的演变；注水切换步骤，在通过该不平衡量检测步骤检测到的不平衡量转向上升时，从所述第一平衡器向第二平衡器切换所述调整水的注水；以及第二注水步骤，向所述第二平衡器注入所述调整水。
此外，本发明的特征在于，第一平衡器是位于距离不平衡位置最远的位置的平衡器。
此外，本发明的特征在于，具有：时间切换步骤，在从第一注水步骤到注水切换步骤为止经过了规定时间时，从第一平衡器向第二平衡器切换调整水的注水。
此外，本发明的特征在于，平衡器是从洗涤桶的内周面突出设置的能搅拌洗涤物的折流板。
此外，本发明的特征在于，平衡器沿着洗涤桶的内周面以等角度间隔设置。
发明效果
根据以上所说明的本发明，即使在需要对多个平衡器注水时，也能使注水所需的时间适于不平衡的消除。由此，能避免消除不平衡所需的时间过久，能使脱水过程顺利地进行。也就是说，根据本发明，即使在脱水运转时洗涤桶内存在洗涤物的偏置，也能不使旋转减速或停止地消除洗涤桶的不平衡，能抑制由洗涤桶的偏心引起的振动、噪音的产生，并且能有效地避免运转时间的延迟。其结果是，由于使用者进行洗涤所需的时间不会延迟，因此也有助于使用者的时间的有效利用、自助洗衣房店铺的流转效率的提高。
此外，根据第一平衡器是位于距离不平衡位置最远的位置的平衡器的本发明，通过向最有助于消除不平衡的平衡器注水从而迅速地减少不平衡量的同时，通过注水切换步骤能使其只注水必要长的时间，因此有助于更加迅速地消除不平衡。
此外，根据具有上述这样的时间切换步骤的本发明，即使对第一平衡器进行的注水消除不平衡的程度较低，也能避免注水过久，更有助于消除不平衡。
此外，根据平衡器是能搅拌洗涤物的折流板的本发明，通过有效地利用现有的结构，不仅避免了装置的大型化，还有效地避免了需要制造的零部件件数的增加，也有助于更高效的制造。
此外，根据平衡器以等角度间隔设置的本发明，能更简单地进行从不平衡位置的确定到需要注水的平衡器的确定的控制，能高效地进行不平衡的消除。
附图说明
图1是表示本发明的一实施方式的洗衣机1的外观的立体图。
图2是表示同一洗衣机1的结构的示意图。
图3是表示同一洗衣机1的局部纵剖立体图。
图4是从上方观察同一洗衣机1的局部的图。
图5是同一洗衣机1的局部纵剖图。
图6是同一洗衣机1的电气系统框图。
图7是表示同一洗衣机1的脱水过程中的控制流程的流程图。
图8是表示同一洗衣机1的脱水过程中的控制流程的流程图。
图9是用于对同一洗衣机1的脱水过程中的控制流程进行说明的图。
图10是表示同一洗衣机1的控制中的不平衡量(M)的演变的图。
具体实施方式
以下，基于附图，对本发明的一实施方式进行详细说明。
图1是表示本发明的一实施方式的立式洗衣机(以下，称为“洗衣机”)1的外观的立体图。图2是表示本实施方式的洗衣机1的结构的示意图。图3是本实施方式的洗衣机1的局部纵剖立体图。图4是从上方观察本实施方式的洗衣机1的局部的图，图4的(a)是俯视图，图4的(b)是洗衣机1所具有的脱水桶2的横剖图。图5是本实施方式的洗衣机1的局部纵剖图。
本实施方式的洗衣机1具备：洗衣机主体1a、构成洗涤桶1b的外桶3和脱水桶2、接水环单元5、喷嘴单元6、驱动部40以及控制装置(参照图6)。
图1所示的洗衣机主体1a为大致长方体形状。在洗衣机主体1a的上表面10a，形成有用于对脱水桶2投入取出洗涤物的开口11，并且安装有能开闭该开口11的开闭盖11a。
外桶3是构成配置于洗衣机主体1a的内部的洗涤桶1b的外形的有底筒状的构件，内部能储存洗涤水。如图2所示，在外桶3的外周面3a，安装有能检测水平和垂直两个方向的加速度的加速度传感器12。
脱水桶2是与外桶3同轴地配置于外桶3内并与外桶3一起构成洗涤桶1b，并且自由旋转地受到支承的有底筒状的构件。脱水桶2能在内部收容洗涤物，其壁面2a具有许多通水孔2b(参照图3)。
在这样的脱水桶2的底部2c中央，自由旋转地配置有波轮(搅拌翼)4。如图3所示，波轮4具有：大致圆盘形状的波轮主体4b、形成于波轮主体4b的上表面的多个上叶片部4c、以及形成于波轮主体4b的下表面的多个下叶片部4a。这样的波轮4对储存于外桶3内的洗涤水进行搅拌，产生水流。
如图3、4的(b)所示，在脱水桶2的内周面2a1，沿周向以等间隔(等角度)设置有三个折流板(注水管)7，该折流板7作为通水管部并且在本发明中相当于平衡器。各折流板7以如下方式形成：沿上下方向从脱水桶2的底部2c一直延伸到上端部，并从脱水桶2的内周面2a1朝向轴线S1突出。此外，各折流板7为中空状，横截面形状形成为圆弧状。通过这样的形状，该作为平衡器的折流板在脱水过程中也起到搅拌洗涤物的作用。如此，折流板7的形状是向 脱水桶2的轴线S1突出较少并沿着脱水桶2的周向变宽的形状，由此能抑制脱水桶2的收容空间变窄。
如图2、3所示，在这样的折流板7的下端部，在脱水桶2的底部2c附近，更具体地说在波轮主体4b的下方形成有开口的开口部71。此外，在折流板7的上端部形成有横向长的循环水口70。因此，在处于排水阀50a(参照图2)被关闭而洗涤水蓄积于外桶3内的状态的洗涤过程中，如图3中箭头所示，经波轮4的下叶片部4a搅拌过的洗涤水从开口部71进入并在折流板7内上升，从循环水口70排出，由此对衣物进行淋洗。此外，通过重复该动作，洗涤水在脱水桶2内循环。即，折流板7具有循环洗涤水的功能。需要说明的是，这样具有开口部71以及循环水口70并能进行淋洗的通水管部也适用于以往的洗衣机，但通常只设置一个。
而且，在折流板7的内部设置有间隔片7a，该间隔片7a从后述的连通构件5a1、5b1、5c1所连接的位置与循环水口70之间延伸到脱水桶2的内周面2a1的接近位置。间隔片7a从循环水口70的上端缘延伸，其自由端7a1侧向下方弯曲。在这样的间隔片7a的自由端7a1与脱水桶2的内周面2a1之间形成有间隙7b(参照图2)，从接水环单元5供给的后述的调整水经由该间隙7b流入下方。
接水环单元5是构成本发明的注水装置1c的装置，是由朝向上方敞开的环状的导水槽5a、5b、5c(参照图4的(a))朝向脱水桶2的轴线S1沿径向重叠三层而构成的装置，如图3所示，固定于脱水桶2的内周面2a1的上端部。导水槽5a、5b、5c设置为与折流板7数量相同，其内部形成有使调整水独立地流向任意一个折流板7的通水路径。这样的接水环单元5的大小以及形状与安装于以往的洗衣机的已知的液体平衡器几乎相同，在本实施方式中，代替液体平衡器安装于普通液体平衡器的安装位置。虽然液体平衡器具有在脱水时被动地消除脱水桶2的不平衡的作用，但如下所述，与能主动地消除脱水桶2的不平衡的接水环单元5相比，其效果较小。
这样的接水环单元5与折流板7的上端部分别通过连通构件5a1、5b1、5c1连接。连通构件5a1、5b1、5c1在循环水口70的上方连接于折流板7。
喷嘴单元6是构成本发明的注水装置1c的装置，是独立地向这样的导水槽5a、5b、5c注入调整水的装置。喷嘴单元6具有配置于导水槽5a、5b、5c的上方的三根注水喷嘴6a、6b、6c和分别连接于这些注水喷嘴6a、6b、6c的供水阀 26a、26b、26c。注水喷嘴6a、6b、6c设置为与导水槽5a、5b、5c数量相同，配置于能分别向各个导水槽5a、5b、5c注水的位置。需要说明的是，在本实施方式中，作为调整水，可以使用自来水。此外，作为供水阀26a、26b、26c，也可以采用换向供水阀。
即，本发明的注水装置1c由接水环单元和喷嘴单元构成。
当采用这样的注水装置1c的结构时，在排水阀50a被打开而外桶3内的洗涤水从排水口50排出的脱水过程中，从喷嘴单元6的任意一个注水喷嘴6a、6b、6c注入接水环单元5的导水槽5a、5b、5c内的调整水经由连通构件5a1、5b1、5c1流入折流板7内。例如，在调整水从注水喷嘴6c注入的情况下，如图5中箭头所示，调整水从导水槽5c经由连通构件5c1流入折流板7。当脱水桶2处于高速旋转状态时，流入折流板7内的调整水因离心力而紧贴并滞留于脱水桶2的内周面2a1。由此，该折流板7的重量增加，脱水桶2的平衡发生变化。如此，折流板7是能通过离心力蓄积调整水的容器折流板(Pocket baffle)构造。并且，当脱水过程接近结束而脱水桶2的转速降低时，折流板7内的离心力逐渐衰减，调整水通过重力从开口部71流出，并经由排水管5向外桶3外排出。此时，调整水经由开口部71流入波轮主体4b的下方。因此，调整水以不会浸湿位于波轮主体4b上方的衣物的方式被排出。
图2所示的驱动部40通过电机10使带轮15、15以及传动带15b旋转，并且使朝向脱水桶2的底部2c延伸出的驱动轴17旋转，对脱水桶2、波轮4赋予驱动力，使脱水桶2、波轮4旋转。洗衣机1在洗涤过程中主要只使波轮4旋转，在脱水过程中使脱水桶2和波轮4一体地高速旋转。此外，在一方的带轮15的附近设置有接近开关14，该接近开关14能检测形成于该带轮15的标签15a的通过。
图6是表示本实施方式的洗衣机1的电气结构的框图。该洗衣机1的工作通过包括微型计算机的控制装置30控制。控制装置30具备负责整个系统的控制的中央控制部(CPU)31，该控制装置30连接有存储器32，该存储器32存储有脱水桶2的旋转控制所需的脱水运转开始前的低速旋转设定值(N1)、脱水运转开始后的高速旋转设定值(N2)、低速脱水运转时的不平衡量设定值(ma)、高速脱水运转时的不平衡量设定值(mb)。此外，通过控制装置30，在由微型计算机来执行存储于存储器32的程序而进行预先设定的运转工作的同 时，将执行上述程序时实际使用的数据等暂时地存储于存储器32。
中央控制部31向转速控制部33输出控制信号，进而将该控制信号向电机控制部(电机控制电路)34输出，进行电机10的旋转控制。需要说明的是，转速控制部33从电机控制部34实时地输入表示电机10的转速的信号，构成控制元件。将加速度传感器12连接于不平衡量检测部35，并且将加速度传感器12以及接近开关14连接于不平衡位置检测部36。
由此，当接近开关14检测到标签15a(参照图2)时，能根据来自加速度传感器12的水平方向和垂直方向的加速度的大小，在不平衡量检测部35中计算出不平衡量(M)，该不平衡量被输出给不平衡量判定部37。另一方面，不平衡位置检测部36根据从接近开关14输入的表示标签15a的位置的信号计算出不平衡方向的角度，将不平衡位置信号输出给注水控制部38。
当来自不平衡量判定部37以及不平衡位置检测部36的表示不平衡量和不平衡位置的信号被输入时，注水控制部38基于预先储存的控制程序对是否向脱水桶2内的任意一个折流板7进行供水及其供水量进行判断。然后，打开选定的供水阀26a、26b、26c，开始注入调整水。当脱水桶2产生不平衡时，开始从基于该不平衡量的计算结果而选定的注水喷嘴6a、6b、6c向接水环单元5的导水槽5a、5b、5c注入调整水，当通过折流板7消除了不平衡时，停止注入调整水。
需要说明的是，例如，如图4的(b)所示，在构成不平衡的主要原因的洗涤物的团块LD(X)位于脱水桶2的折流板7(B)与折流板7(C)之间的情况下，注水控制部38以向折流板7(A)供给调整水的方式进行控制。此外，在洗涤物的团块LD(Y)位于折流板7(A)的附近的情况下，以向折流板7(B)和折流板7(C)双方供给调整水的方式进行控制。
此处，在本实施方式中，对于像上述的洗涤物的团块LD(Y)位于任意一个折流板7附近的情况这样，需要向多个折流板7注水以消除不平衡的例子的具体控制特别详细地说明。
即，图6所示的中央控制部31如图9的参数表所记载的那样，使供水阀X、供水阀Z开口。此处，在本实施方式中，通过如图9所示进行九等分，从而将不平衡位置的确定分成以下两种情况：确定需要消除不平衡位置(N)的平衡器即折流板为一个的不平衡位置(N)、确定需要消除不平衡位置(N)的平衡器 为两个的不平衡位置(N)。
即，确定需要消除不平衡位置(N)的折流板为一个的不平衡位置(N)的区域Y是指区域P(A)、P(B)以及P(C)。此外，确定需要消除不平衡位置(N)的不平衡位置(N)的区域Y是指区域P(AB)、P(BA)、P(BC)、P(CB)、P(CA)以及P(AC)。需要说明的是，就这六个区域的标记而言，标记了ABC的任意两个的部位的记载顺序原封不动地相当于通过注水装置1c注水的折流板的顺序。
即，在这六个区域所记载的ABC的文字中，由相当于第一个记载的文字的供水阀X注水的折流板7相当于第一平衡器，由相当于第二个记载的文字的供水阀Z注水的折流板7相当于第二平衡器。
此外，相当于ABC中未记载的文字的平衡器相当于其他平衡器，在本实施方式中，是距离不平衡位置(N)最近的折流板7。
换言之，相当于第一平衡器的折流板7是距离不平衡位置(N)最远的折流板7。
此处，本实施方式的洗衣机的控制方法的特征在于，在脱水过程中，具备：不平衡位置检测步骤，检测洗涤桶1b的不平衡位置(N)；平衡器选择步骤，根据该不平衡位置检测步骤来确定需要注水的平衡器即折流板7；第一注水步骤，根据该平衡器选择步骤，在需要对至少两个折流板7注水时，通过多个折流板中的供水阀X向折流板7注入调整水；不平衡量检测步骤，检测该第一注水步骤中洗涤桶1b的不平衡量M的演变；注水切换步骤，在通过该不平衡量检测步骤检测到的不平衡量M转向上升时，为了从第一平衡器向第二平衡器切换调整水的注水而从供水阀X向供水阀Y切换注水；以及第二注水步骤，通过注水阀Y向折流板7注入调整水。
图7、8是表示本实施方式的洗衣机1的控制的流程图。
在本实施方式中，当所述中央控制部31接收到来自未图示的脱水按钮的输入信号或洗涤程序运转中旨在应该开始脱水过程的信号时，移至步骤SP1，开始脱水过程。
<步骤SP1>
在步骤SP1中，中央控制部31使脱水桶2慢速反转后，加速脱水桶2的旋转。
<步骤SP2>
在步骤SP2中，中央控制部31基于低速旋转设定值(N1)使脱水桶2低速旋转。
<步骤SP3>
在步骤SP3中，中央控制部31基于由加速度传感器12给出的加速度值(加速度传感器的x成分)来检测不平衡量(M)。
<步骤SP4>
在步骤SP4中，中央控制部31对不平衡量(M)和储存于存储器32的不平衡量设定值(ma)进行比较，判断M＜ma是否成立。当判断M＜ma成立时，移至步骤SP6。另一方面，当判断M＜ma不成立时，移至步骤SP5。此处，不平衡量设定值(ma)是表示洗涤物的偏倚大到即使向折流板7供给调整水也难以消除的程度的阈值。即，在移至步骤SP5的情况下，意味着判断出洗涤物的偏倚大到即使向折流板7供给调整水也难以消除的程度。
<步骤SP5>
在步骤SP5中，中央控制部31在使脱水桶2的旋转停止后，返回步骤SP1，重复步骤SP1～SP4。
<步骤SP6>
在步骤SP6中，中央控制部31在判断开始脱水桶2的低速旋转后的经过时间为进行低速旋转处理的预先设定的设定时间以上时，移至步骤SP7。
<步骤SP7>
在步骤SP7中，中央控制部31基于高速旋转设定值(N2)，使脱水桶2高速旋转。
<步骤SP8>
在步骤SP8中，中央控制部31基于由加速度传感器12给出的加速度值，检测出不平衡量(M)以及不平衡位置(N)。即，该步骤SP8相当于本发明的不平衡位置检测步骤。
<步骤SP9>
在步骤SP9中，中央控制部31对不平衡量(M)和储存于存储器32的上述不平衡量设定值(mb)进行比较，判断M＜mb是否成立。当判断M＜mb成立时，移至后述的步骤SP23。另一方面，当判断M＜mb不成立时，移至步骤 SP10。此处，不平衡量设定值(mb)是比不平衡量设定值(ma)小的值，是表示洗涤物的偏倚小到即使不向折流板7供给调整水也不会产生噪音的程度的阈值。即，在判断偏负荷较小或不存在，即使不向折流板7供水也不会产生噪音的情况下，移至步骤SP23。
<步骤SP10>
在步骤SP10中，中央控制部31基于不平衡位置(N)，如图9所示将供水阀X、区域Y、供水阀Z置换成参数表的值，并存储于例如存储器32。即，该步骤SP10相当于本发明的平衡器选择步骤。
<步骤SP11>
在步骤SP11中，中央控制部31使图9的参数表所记载的供水阀X开口。即，该步骤SP11相当于本发明的第一注水步骤。
<步骤SP12>
在图8所示的步骤SP12中，中央控制部31基于加速度传感器12给出的加速度值，重新计算不平衡量(M)。即，该步骤SP12相当于检测洗涤桶1b的不平衡量(M)的演变的本发明的不平衡量检测步骤。需要说明的是，在该步骤SP12中，通常，不平衡量(M)在开始的时候表现出逐渐减少的倾向。
<步骤SP13>
在步骤SP13中，中央控制部31对不平衡量(M)和储存于存储器32的上述不平衡量设定值(mb)进行比较，判断M＜mb是否成立。当判断M＜mb成立时，移至后述的步骤SP23。另一方面，当判断M＜mb不成立时，移至步骤SP14。此处，不平衡量设定值(mb)是比不平衡量设定值(ma)小的值，是表示洗涤物的偏倚小到即使不向折流板7供给调整水也不会产生噪音的程度的阈值。即，在判断偏负荷较小或不存在，即使不向折流板7供水也不会产生噪音的情况下，移至步骤SP23。
<步骤SP14>
在步骤SP14中，中央控制部31在判断通过步骤SP12检测出的不平衡量(M)未转向增加时，移至步骤SP15。当判断不平衡量(M)转向增加时，移至步骤SP16。
<步骤SP15>
在步骤SP15中，中央控制部31在判断使供水阀X开口后的经过时间为设 定时间以上时，移至步骤SP16。当上述经过时间小于设定时间时，返回步骤SP12。此处，例如，设定时间例如为一个折流板7内被调整水大致注满为止所花费的时间。
<步骤SP16>
在步骤SP16中，中央控制部31读出通过上述步骤SP12置换的、储存于存储器32的不平衡位置(N)是图9的参数表所示的区域Y中的哪个区域Y，当判断不平衡位置(N)是未设定供水阀Z的区域Y即区域P(A)、P(B)或P(C)时，移至后述的步骤SP21。当判断不平衡位置(N)是设定了供水阀Z的区域Y即区域P(AB)、P(BA)、P(BC)、P(CB)、P(CA)或P(AC)时，移至步骤SP17。
<步骤SP17>
在步骤SP17中，中央控制部31判断供水阀X是否正在注水中。当供水阀X正在注水中时，移至步骤SP18。当供水阀X不在注水中时，移至步骤SP19。<步骤SP18>
在步骤SP18中，使图9的参数表所记载的供水阀X关闭，并且使供水阀Z开口。例如，在初始的不平衡位置(N)是区域P(AB)的情况下，供水阀X为对应于折流板7(A)的供水阀26a，供水阀Z为对应于折流板7(B)的供水阀26b，所述折流板7(B)位于比对应于供水阀26a的折流板7(A)靠近区域P(AB)的位置即距离区域P(AB)第二远的位置。即，该步骤SP18相当于本发明的第二注水步骤。
<步骤SP19>
在步骤SP19中，中央控制部31判断供水阀Z是否正在注水中。当供水阀Z正在注水中时，移至步骤SP20。当供水阀Z不在注水中时，移至后述的步骤SP21。
<步骤SP20>
在步骤SP20中，使图9的参数表所记载的供水阀Z关闭，并且使其他的阀开口。例如，在初始的不平衡位置(N)是区域P(AB)的情况下，供水阀Z为对应于折流板7(B)的供水阀26b，其他的阀为对应于折流板7(C)的供水阀26c，所述折流板7(C)位于比对应于供水阀26b的折流板7(B)靠近区域P(AB)的位置即距离区域P(AB)最近的位置。即，该步骤SP20相当于其他 的注水步骤。
<步骤SP21>
在图7所示的步骤SP21中，中央控制部31使所有的供水阀X、Z为关闭状态。
<步骤SP22>
在步骤SP22中，中央控制部31在使脱水桶2的旋转停止后，返回步骤SP1。
如此，在判断偏负荷大到向折流板7的供水无法消除的程度的情况下，进行步骤SP21、22的处理，从头开始重新进行脱水处理。
<步骤SP23>
在图7所示的步骤SP23中，中央控制部31使所有的供水阀X、Z为关闭状态。
<步骤SP24>
在步骤SP24中，中央控制部31使脱水桶2以最高转数旋转规定时间，进行脱水处理。然后，结束脱水处理。
并且，在图10中，示出了从上述步骤SP11经过步骤SP18直到步骤SP23的一连串的偏心量的变化。如此，首先，在表示偏心量即不平衡量(M)的曲线中，虚线所示的部分示出了向被供水阀X注水的折流板进行的注水超过所需量时的变化。在本实施方式中，通过设置检测不平衡量(M)上升的时间点并在该时间点切换注水阀的步骤SP14，能迅速地向需要的折流板7注水，而无需花费使不平衡量(M)无谓增加的时间。
此外，在本实施方式中，在即使进行了相当于向第二平衡器注水的由供水阀Z进行的注水时不平衡量(M)还是不小于不平衡量设定值(mb)的情况下，使目前为止尚未进行过注水的第三个供水阀开口。如此，在本实施方式中，在向多个折流板7进行注水的情况下，按照从距离不平衡位置(N)最远的折流板7到距离不平衡位置(N)最近的折流板7的顺序进行注水。并且，在根据不平衡量(M)转向上升或经过了规定时间的任意一个的情况的发生来切换折流板，并通过这一连串的注水而使不平衡量(M)小于不平衡量设定值(mb)时，移至下述的运转，当不小于不平衡量设定值(mb)时，换言之步骤SP19中为“否”时，再次从头开始脱水过程。
然后，当不平衡量(M)为设定值以下时，将脱水桶2加速到高速脱水旋转， 进行脱水。并且，当脱水结束而脱水桶2开始减速，离心力小于重力加速度时，折流板7内的调整水从开口部71向下部流出并排出。
根据利用上述控制方法进行的脱水过程的流程，即使在需要向多个折流板7进行注水的情况下，也能毫不费劲地迅速消除不平衡状态，因此，能设计出如下的洗衣机1：无论在脱水运转从开始到结束的哪个阶段，都能防止振动、噪音的产生，而且还能有效地避免运转时间的延迟。
如此，就本发明的洗衣机1的控制方法而言，在脱水过程中，在对最先注水的折流板7进行的注水过程中不平衡量(M)上升的步骤SP14的时间点，向下一个折流板7切换注水，通过如上进行控制，即使在需要对多个平衡器进行注水时，也能使注水所需的时间适于不平衡的消除。特别是，有效地避免了向作为第一平衡器的折流板7的注水时间不必要地增加。由此，避免消除不平衡所需的时间过久，使脱水过程顺利地进行。
即，根据本实施方式，即使在脱水过程中脱水桶2内存在洗涤物的偏置，也能不使旋转减速或停止地消除洗涤桶1b的脱水桶2的不平衡，抑制由脱水桶2的偏心引起的振动、噪音的产生，并且能有效地避免运转时间的延迟。其结果是，由于使用者洗衣所需的时间不会延迟，因此也能有助于使用者的时间的有效利用、自助洗衣房店铺的流转效率的提高。
此外，由于第一平衡器即由供水阀X供水的折流板7是位于距离不平衡位置(N)最远的位置的折流板7，因此，通过向最有助于不平衡量(M)的降低的折流板7注水来迅速地减少不平衡量(M)，同时，通过注水切换步骤即步骤SP18能只注水必要长的时间，因此更迅速地实现了不平衡的消除。
此外，在本实施方式中，当通过步骤SP14未检测到不平衡量(M)上升时，也会设置上述这样的步骤SP15即时间切换步骤，因此，即使在向第一平衡器即由供水阀X注水的折流板7进行的注水实际消除不平衡的程度较低的时候，也避免了注水过久，有助于进一步地消除不平衡。
此外，在本实施方式中，由于作为平衡器利用了原本搭载于洗衣机1的用于搅拌洗涤物的折流板7，因此，通过有效地利用现有的结构，不仅避免了装置的大型化，还有效地避免了需要制造的零部件件数的增加，也有助于更高效的制造。
此外，在本实施方式中，由于作为平衡器的多个折流板7在脱水桶2的内 周面2a1上以等角度间隔设置，因此简化了从不平衡位置(N)的确定到供水阀X的确定的控制，同时实现了高效的不平衡的消除。
以上，对本发明的一实施方式进行了说明，但本实施方式的结构并不限定于上述结构，可以进行各种变形。
例如，作为洗衣机，虽然在上述实施方式中公开了对所谓的立式全自动洗衣机应用本发明的一个例子，但本发明的控制方法无疑也能适用于家用的倾斜滚筒式全自动洗衣机、广泛应用于自助洗衣房店铺的卧式洗衣干衣机。
此外，例如，虽然在上述实施方式中，接水环单元5由三个导水槽5a、5b、5c构成，与之对应地设置有三个折流板7，但不限于此，只要是设置为三个以上的折流板7，并且导水槽设置为与折流板7数量相同的结构即可。
此外，接水环单元5可以是由多个导水槽5a、5b、5c沿上下方向重叠而成的结构，由此，能缩小接水环单元5的横向宽度，扩大脱水桶2的开口。
而且，根据洗衣机1的工作(状况)，折流板7可以是向上变宽或向下变宽的形状。
其他的结构也可以在不脱离本发明的技术精神的范围内进行各种变形。
附图标记说明
1：洗衣机；
1b：洗涤桶；
1c：注水装置；
2a1：(洗涤桶的)内周面；
7：平衡器(折流板)；
S1：轴线；
SP8：不平衡位置检测步骤；
SP10：平衡器选择步骤；
SP11：第一注水步骤；
SP14、SP16、SP17、SP18：注水切换步骤；
SP15、SP16、SP17、SP18：时间切换步骤；
SP18：第二注水步骤。

Claims (5)

  1. 一种洗衣机的控制方法，所述洗衣机具备：
    中空的平衡器，在洗涤桶的内周面，绕着轴线以不同的角度相位配设有三个以上；以及
    注水装置，独立地向各个所述平衡器注入调整水，
    所述洗衣机的控制方法的特征在于，
    在脱水过程中，具备：
    不平衡位置检测步骤，检测所述洗涤桶的不平衡位置；
    平衡器选择步骤，根据该不平衡位置检测步骤来确定需要注水的所述平衡器；
    第一注水步骤，根据该平衡器选择步骤，在需要对至少两个所述平衡器注水时，向多个平衡器中的任意的第一平衡器注入所述调整水；
    不平衡量检测步骤，检测该第一注水步骤中所述洗涤桶的不平衡量的演变；
    注水切换步骤，在通过该不平衡量检测步骤检测到的不平衡量转向上升时，从所述第一平衡器向第二平衡器切换所述调整水的注水；以及
    第二注水步骤，向所述第二平衡器注入所述调整水。
  2. 根据权利要求1所述的洗衣机的控制方法，其特征在于，
    所述第一平衡器是位于距离所述不平衡位置最远的位置的平衡器。
  3. 根据权利要求1或2所述的洗衣机的控制方法，其特征在于，
    具有：时间切换步骤，在从所述第一注水步骤到所述注水切换步骤为止经过了规定时间时，从所述第一平衡器向第二平衡器切换所述调整水的注水。
  4. 根据权利要求1或2所述的洗衣机的控制方法，其特征在于，
    所述平衡器是从所述洗涤桶的内周面突出设置的能搅拌洗涤物的折流板。
  5. 根据权利要求1或2所述的洗衣机的控制方法，其特征在于，
    所述平衡器沿着所述洗涤桶的内周面以等角度间隔设置。
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