CN1239772C - Clutch control method of single drum washing machine - Google Patents

Clutch control method of single drum washing machine Download PDF

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Publication number
CN1239772C
CN1239772C CNB021224390A CN02122439A CN1239772C CN 1239772 C CN1239772 C CN 1239772C CN B021224390 A CNB021224390 A CN B021224390A CN 02122439 A CN02122439 A CN 02122439A CN 1239772 C CN1239772 C CN 1239772C
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CN
China
Prior art keywords
clutch
motor
washing
mode
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB021224390A
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Chinese (zh)
Other versions
CN1439764A (en
Inventor
广冈博
石川则彦
赖田昌美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Kentetsu Co Ltd
Mitsubishi Electric Corp
Original Assignee
Nihon Kentetsu Co Ltd
Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Nihon Kentetsu Co Ltd, Mitsubishi Electric Corp filed Critical Nihon Kentetsu Co Ltd
Publication of CN1439764A publication Critical patent/CN1439764A/en
Application granted granted Critical
Publication of CN1239772C publication Critical patent/CN1239772C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/40Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206Mounting of motor
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58Indications or alarms to the control system or to the user

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

In switching a clutch device, the revolving speed of an electromotive machine may be converted into an ultra-low speed without using a pulsed electromotive machine. Even if the slash between the engaging portions of the clutch is small, the engaging portions may be accurately engaged to prevent generation of excessive impact noises in switching for silencing. A dewatering spindle of a washing and dewatering basket is connected to a cleaning spindle by means of a clutch device. The clutch device causes clutch pins secured to the dewatering spindle and attracted or repulsed from a piston by means of electromagnetic coils to be freely engaged or disengaged from a clutch disc. The clutch disc is secured to the clutch pins serving as a driving spindle of an electromotive machine. As such, the clutch device is able to switch between a washing mode and a dewatering modem, characterized in that: in switching between the washing mode and dewatering mode, AC current frequency is applied to the electromotive machine in a one to multiple cycles for driving the electromotive machine to cause rotation of the driving spindle, and for detaching the clutch pins to engage with or disengage from the clutch disc.

Description

Single casing washing machine clutch control method
Technical field
The present invention relates to the control method of the clutch of single casing automatic washing machine.
Background technology
This single casing automatic washing machine as everyone knows, as shown in Figure 3, tank 21 can be arranged in the outer container 20 with freely swinging, washing and dewatering groove 18 is configured in this tank 21 free to rotately, the rotation wing 3 is set on the bottom of this washing and dewatering groove 18.
Simultaneously, being connected on the motor 1 as process reducing gear in the middle of the driving shaft of wash shaft on the rotation wing 3 will be connected to, to be connected on the driving shaft via clutch apparatus 8 in the middle of the dehydrating shaft that be connected on the washing and dewatering groove 18, when washing and flushing running, has only the rotation wing 3 with low speed rotation, make that producing eddy current in washing and dewatering groove 18 washs and clean, when the dehydration running, dehydrating shaft is connected on the driving shaft, make the rotation at a high speed simultaneously of the rotation wing 3 and washing and dewatering groove 18, utilize centrifugal force that the moisture of the washings in the washing and dewatering groove 18 is got rid of.
Aforementioned clutch device 8, have as Fig. 4, shown in Figure 5, be combined to the reducing gear 22 that constitutes by planetary gear the bottom, utilize solenoid and plunger to carry out the pin clutch structure that clutch switches, for motor 1 usability induction motor for example, utilize screw 4 will rotate the wing 3 and be fixed on front end, clutch disk 16 is fixed to as on the base portion under the main shaft of the base portion part of driving shaft 2 by being pressed into as the wash shaft of its driving shaft 2.The cooperating recesses 15 that clutches engaged is used is set on this clutch disk 16.
Utilize bearing that dehydrating shaft 17 can be arranged on the same axle in the outside as the driving shaft 2 of wash shaft with rotating freely, washing and dewatering groove 18 is fixed on the front end of this dehydrating shaft 17, is fixed on the base portion playing the resinous plunger 11 clutch effect, that cylindric permanent magnet 12 is formed in around it simultaneously.But this plunger 11 is combined to the top of clutch 16 with utilizing spring 14 easy on and off motions, is being provided as the engagement protrusion 13 of clutch pin downwards highlightedly with aforementioned cooperating recesses 15 corresponding positions.
Be installed to solenoid 9 on the yoke 10 in the configuration of the position of the outside of plunger 11 and permanent magnet 12 subtends, with clutch box 8a cover plunger 11, solenoid 9 around.
Below, its action is described.When washing and clean, operating portion is operated, when setting the content of washing process and connecting switch, the output of controller unit is by solenoid 9, the permanent magnet 12 of plunger 11 is attracted by solenoid 9 and the elastic force that overcomes spring 14 is moved upward, engagement protrusion 13 is deviate from from the cooperating recesses 15 of clutch disk 16, removes dehydrating shaft 17 and combining as the driving shaft 2 of wash shaft.
Then, the water-supply valve action, feedwater in washing and dewatering groove 18 during motor 1 energising, has only driving shaft 2, is the wash shaft rotation that the rotation wing 3 low speed rotation are washed running.
When from washing stroke when the dehydration stroke shifts, draining valve is opened, water in the washing and dewatering groove 18 is discharged from drainpipe, on solenoid 9, flow through the electric current opposite with direction in the washing procedure, the result is, plunger 11 is moved downwards, and engagement protrusion 13 is inserted in the cooperating recesses 15 that is arranged on the clutch disk 16, clutches engaged.
Whereby, be connected by the driving shaft 2 of plunger 11 dehydrating shaft of fixing 17 and the wash shaft of fixing as clutch disk 16.Thereby the rotation of motor 1 is delivered to simultaneously as the wash shaft of driving shaft 2 and dehydrating shaft 17, and the rotation wing 3 and washing and dewatering groove 18 rotation at a high speed simultaneously utilize the moisture dehydration of centrifugal force with the washings in the washing and dewatering groove 18.
From washing stroke to dehydration stroke when conversion, whether switch fully in order to judge clutch, utilized the moment of inertia of the rotation wing 3 and washing and dewatering groove 18 rotation separately.When promptly making clutches engaged in order to be transformed into dehydration, at first, after 11 times 1 short time of general who has surrendered's motor energisings of plunger, the cooperating recesses 15 on making engagement protrusion 13 and being located at clutch disk 16 cooperates, and carries out the detection of clutch position then.
Summary of the invention
In the pin clutch structure of this electromagnetic type, as the method for carrying out easily for the switching that makes clutch, connect into guarantee engagement protrusion 13 and cooperating recesses 15 engaging piece in the big gap of direction of rotation, utilize phase inverter or position mutually low speed such as control control the rotary speed of motor 1.
When engagement protrusion 13 strengthens with the gap of the engaging piece direction of cooperating recesses 15, along the impulsive sound increasing when torque changes that rocking of direction of rotation produced, do not meet in recent years requirement to quietization by the clutches engaged part.
In order to eliminate this drawback, can reduce engaging piece along the rocking of direction of rotation, but like this, utilize present phase inverter or position mutually control etc. motor is carried out in the method for low speed control, it is big speed to occur, and engaging piece can not mesh and skip, and causes the danger of engaging piece breakage.In addition, when using pulse motor, though can rotate with Ultra-Low Speed, its cost is very high.
The purpose of this invention is to provide the impropriety in a kind of example that can eliminate aforementioned prior art, needn't use impulse motor to become ultralow speed so that carry out the rotary speed of the motor of clutch when switching, even hour also can connect reliably in the gap of clutches engaged portion, big impact noise takes place when preventing to switch, and reaches the single casing washing machine clutch control method of quietization.
In order to achieve the above object, emphasis of the present invention is, first, be connected on the driving shaft of motor for the card that can utilize the clutch pin that constitutes clutch apparatus and clutch disk takes off the dehydrating shaft that will be connected on the washing and dewatering groove in its structure, the aforementioned clutch device will be arranged at and be fixed on the dehydrating shaft, by solenoid attract or the plunger repelled on above-mentioned clutch pin can freely block to be combined to with taking off and be fixed on as on the above-mentioned clutch disk on the wash shaft of aforementioned driving shaft, and from washing mode to the single casing washing machine clutch control method that dehydration mode is switched, it is characterized by, from washing mode when dehydration mode is switched, on aforementioned motor, add one-period or several cycle of ac power frequency, drive this motor, afterwards, cut-out is to the power supply of this motor and make aforementioned driving shaft inertia rotation, carries out the connection of clutch pin on clutch disk.
Whereby, can make induction conductivity have the function of pulsed motor,, also can prevent and skip, can connect reliably even the gap of clutches engaged portion is little.Thereby the impact noise in the time of can reducing engagement prevents the damage of engaging piece.
The second, after carrying out the attended operation of clutch pin on clutch disk, carry out the energising of certain hour to motor, judge that by the umber of pulse of measuring during this period clutch apparatus has switched to any pattern in washing mode and the dehydration mode.Promptly, be connected on the driving shaft to dehydration mode at clutches engaged, dehydrating shaft, because the load of dehydrating shaft is added on the driving shaft, so rotary speed (acceleration) reduces, umber of pulse is few, is free of attachment on the driving shaft to washing mode, because the load of dehydrating shaft is not added on the driving shaft at clutch disconnection, dehydrating shaft, so rotary speed (acceleration) accelerates, umber of pulse increases.
Thereby, if detect the difference of this acceleration (umber of pulse), just can judge dehydrating shaft easily and reliably and whether be connected on the driving shaft, that is, clutch has switched to which side in washing mode and the dehydration mode.
The simple declaration of accompanying drawing
Fig. 1 be the clutch of expression single casing washing machine clutch control method of the present invention connect control action flow chart.
Fig. 2 is the umber of pulse oscillogram of the clutch of single casing washing machine clutch control method of the present invention when connecting.
Fig. 3 is a key diagram of implementing the washing machine of single casing washing machine clutch control method of the present invention.
Fig. 4 is a vertical section front view of implementing the clutch apparatus of single casing washing machine clutch control method of the present invention.
Fig. 5 is a vertical section front view of implementing the clutch apparatus major part of single casing washing machine clutch control method of the present invention.
Fig. 6 is a vertical section front view of implementing the clutch apparatus major part of single casing washing machine clutch control method of the present invention.
Symbol description
1... motor, the 2... driving shaft, 3... rotates the wing, 4... hold-down screw, 5... permanent magnet, 6... hold-down screw, 7... Hall device, 8... clutch apparatus, 8a... clutch box, 9... solenoid, 10... yoke, 11... plunger, 12... permanent magnet, 13... engagement protrusion, 14... stage clip, 15... cooperating recesses, 16... clutch disk, 17... dehydrating shaft, 18... washing and dewatering groove, 19... hold-down nut, 20... outer container, 21... tank, 22... reducing gear
The specific embodiment
Describe the present invention with reference to the accompanying drawings in detail to embodiment.Fig. 1 is the flow chart that the clutch of the embodiment of expression single casing washing machine clutch control method of the present invention connects control action, structure for the single casing washing machine of the structure that is used for implementing clutch of the present invention is illustrated in Fig. 5, general structure for die clutch construction is illustrated in Fig. 3, so, omitted detailed description here to them.
As Fig. 4, shown in Figure 5, the present invention is incorporated into the bottom that is formed into reducing gear 22 by planetary gear to clutch apparatus 8, it is a kind of pin clutch structure of utilizing solenoid and plunger to carry out the clutch switching, for motor 1, but usability induction motor for example, will rotate the wing 3 usefulness screws 4 be fixed to as its driving shaft 2 to wash shaft to front end, clutch disk 16 is fixed to as on the base portion of driving shaft 2 below the main shaft of base portion part by being pressed into.On this clutch disk 16, as shown in Figure 6, be provided for making the cooperating recesses 15 of clutches engaged.
Utilize bearing that dehydrating shaft 17 can be rotated freely the coaxial outside that is arranged on as the driving shaft 2 of wash shaft, ground, washing and dewatering groove 18 is fixed on the front end of this dehydrating shaft 17 with hold-down nut 19, carries out serration and process and be coupled on the base portion of dehydrating shaft 17 playing the plunger 11 clutch effect, that cylindric permanent magnet 12 is formed in usefulness the resin manufacture around it simultaneously.
This plunger 11 can freely move up and down and be combined to clutch disk 16 to the top (along the direction of arrow), in the engagement protrusion 13 that is provided as clutch pin corresponding to the position of aforementioned cooperating recesses 15 downwards highlightedly.In this case, cooperating recesses 15 is little with the fit clearance of engagement protrusion 13, can not produce and rock.
In the outside of plunger 11, dispose the solenoid 9 that is installed on the yoke 10 in position, around clutch box 8a covering plunger-type or iron core 11 and solenoid 9 with permanent magnet 12 subtends.Whereby,, attract each other, repel between permanent magnet 12 and the yoke 10 by changing the excitatory direction of solenoid 9, plunger about in the of 11 (direction of arrow) mobile.Label 14 expression stage clips among the figure after the energising of cutting off solenoid 9, can play that plunger 11 is connected to effect on the clutch disk 16.
In addition, will detect the discoid permanent magnet 5 that the speed of motor 1 uses with hold-down screw 6 is fixed on the lower end of driving shaft 2.Label 7 among the figure is Hall devices that detection speed is used, and is installed on the carriage of motor 1, and motor 1 whenever revolves to turn around and produces 18 pulses.
Secondly, according to the connection control action of the flowchart text clutch of Fig. 1.After washing stroke finishes, when transferring to the dehydration stroke, utilize the control part device at the cycle rate counter N1 of initial setting section with AC power, connect error counter N2, pulse counter P, spin-drying timer T1, instrumentation is initialized as zero [step (132)] respectively with timer T2.
Then, with detecting the connection error counter N2 set [step (100)] of the connection status of clutch, with motor 1 and solenoid 9 energisings [step (101)].Whereby, the magnetic field that produces on the two ends of cylindric permanent magnet 12 that is integrally formed with plunger 11 and yoke 10 is to repel magnetic field, and the elastic force that plunger 11 overcomes stage clip 14 moves downwards.
From this time, give cycle rate counter N1 set [step (102)], the periodicity of alternating current is begun counting, each cycle 1[step (103) that on N1, adds up].Consequently, when the periodicity in energising cycle judgement section judges AC power is N1=2 [step (104)], cycle rate counter N1 is resetted [step (105)], cut off power supply [step (106)] motor 1.
Secondly, with instrumentation timer T2 set [step (107)], the 1[step that on T2, adds up each second (108)], when the instrumentation judgement section judges is T2=2 in the time [step (109)], with instrumentation with timer T2 reset [step (110)], cut-out is to the power supply of solenoid 9, and clutch disconnects [step (111)].
By this action with two cycles of AC power energising, be fixed on clutch disk 16 rotations on the driving shaft 2 of motor 1, cooperating recesses 15 cooperatively interacts with the engagement protrusion 13 of plunger 11, and dehydrating shaft 17 is connected on the driving shaft 2.Thereby become dehydration mode.
At this moment,, do not rock, can dwindle the impact noise that is produced when being connected because the gap between cooperating recesses 15 and the engagement protrusion 13 is little.In addition, even, can not can skip the ground reliable fit because gap small size motor 1 also with the Ultra-Low Speed rotation, can play a part impulse motor.
Secondly, as previously described, cooperating recesses 15 cooperatively interacts with engagement protrusion 13, and clutch switches to the inspection of dehydration side.For this reason, at first, give motor 1 power supply [step (112)], to counter T2 and the pulse counter P set [step (113)] that instrumentation is used, [step (114)] are to time and umber of pulse counting [step (115)], [step (116)], when judgement section judges is T2=2 in the instrumentation time [step 117)], cutting off in motor 1 power supply [step 9118)], with instrumentation with timer T2 reset [step (119)].
Then, when the umber of pulse<3[step (120) that goes out in the pulse judgement section judges in the inside counting of the time of T2=2], be judged as clutch and be set at dehydration mode.This be because, as shown in Figure 2, when clutch is connected to the dehydration side, because dehydrating shaft 17 is connected on the driving shaft 2 of motor 1, load is added on the motor 1, the acceleration of rotation beginning diminishes, so the washing mode when not being connected on the driving shaft 2 with dehydrating shaft 17 is compared, detected umber of pulse is few.
Thereby it is ready that dehydration is turned round, and pulse counter P resets [step (121)], spin-drying timer T 1 set [step (122)], and motor 1 energising [step (123)] begins the dehydration running.
After the dehydration running beginning, spin-drying timer T1 each minute the 1[step (124) that adds up], stroke dewaters, when the dewatering time detection unit is judged T1=5, when [step (125)], cut off the energising to motor 1 during dewatering time that arrive to set, the dehydration stroke finishes [step (127)].
When clutch does not switch to the dehydration side, because dehydrating shaft 17 is free of attachment on the driving shaft 2 not application of load, acceleration is big, umber of pulse P>3 of counting in [step (120)], connect add up 1 computing [step (128)] of error counter N2, the connection errors that connects the errors judgement section judges do not reach 5 times during [step (129)], turn back to [step (101)], repeat the aforementioned clutch connecting moves.
But, improper when connecting, become [step (129)] 5 times by connecting the connection number of times that errors portion judges, be judged as device when having certain fault, connect error counter N2 and reset [step (130)], show to connect error [step (131)], end running.

Claims (2)

1. single casing washing machine clutch control method, be connected on the driving shaft of motor for the card that can utilize the clutch pin that constitutes clutch apparatus and clutch disk takes off the dehydrating shaft that will be connected on the washing and dewatering groove in its structure, the aforementioned clutch device will be arranged at and be fixed on the dehydrating shaft, by solenoid attract or the plunger repelled on above-mentioned clutch pin can freely block to be combined to with taking off and be fixed on as on the above-mentioned clutch disk on the wash shaft of aforementioned driving shaft, and from washing mode to the single casing washing machine clutch control method that dehydration mode is switched, it is characterized by, from washing mode when dehydration mode is switched, on aforementioned motor, add one-period or several cycle of ac power frequency, drive this motor, afterwards, cut-out is to the power supply of this motor and make aforementioned driving shaft inertia rotation, carries out the connection of clutch pin on clutch disk.
2. single casing washing machine clutch control method as claimed in claim 1, it is characterized by, after carrying out the attended operation of clutch pin on clutch disk, carry out the energising of certain hour to motor, judge that by the umber of pulse of measuring during this period clutch apparatus has switched to any pattern in washing mode and the dehydration mode.
CNB021224390A 2002-02-19 2002-06-05 Clutch control method of single drum washing machine Expired - Fee Related CN1239772C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP41910/2002 2002-02-19
JP2002041910A JP2003236296A (en) 2002-02-19 2002-02-19 Clutch control method for single tub type washing machine
JP41910/02 2002-02-19

Publications (2)

Publication Number Publication Date
CN1439764A CN1439764A (en) 2003-09-03
CN1239772C true CN1239772C (en) 2006-02-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021224390A Expired - Fee Related CN1239772C (en) 2002-02-19 2002-06-05 Clutch control method of single drum washing machine

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JP (1) JP2003236296A (en)
KR (1) KR100476962B1 (en)
CN (1) CN1239772C (en)
TW (1) TW536571B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106592163B (en) * 2015-10-15 2021-03-23 合肥海尔洗衣机有限公司 Washing machine speed reduction clutch control method, speed reduction clutch and washing machine
KR102570954B1 (en) * 2016-12-15 2023-08-28 주식회사 에스 씨디 Clutch and drain motor comprising same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100240845B1 (en) * 1997-08-30 2000-01-15 전주범 Method of preventing generation of chattering of buoyancy washing machine
KR20000001095A (en) * 1998-06-08 2000-01-15 구자홍 Washing machine driving apparatus
JP3615080B2 (en) * 1999-03-26 2005-01-26 株式会社東芝 Combined washing machine
JP2001017778A (en) * 1999-07-07 2001-01-23 Hitachi Ltd Fully automatic washing machine
KR100438297B1 (en) * 2001-12-14 2004-07-02 엘지전자 주식회사 Control Method of float-type clutch of washing machine

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Publication number Publication date
JP2003236296A (en) 2003-08-26
KR100476962B1 (en) 2005-03-16
CN1439764A (en) 2003-09-03
TW536571B (en) 2003-06-11
KR20030069018A (en) 2003-08-25

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Granted publication date: 20060201

Termination date: 20100605