CN201195795Y - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
CN201195795Y
CN201195795Y CNU2007201820338U CN200720182033U CN201195795Y CN 201195795 Y CN201195795 Y CN 201195795Y CN U2007201820338 U CNU2007201820338 U CN U2007201820338U CN 200720182033 U CN200720182033 U CN 200720182033U CN 201195795 Y CN201195795 Y CN 201195795Y
Authority
CN
China
Prior art keywords
vibration
washing machine
vibrating sensor
motor
steel ladle
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
CNU2007201820338U
Other languages
Chinese (zh)
Inventor
高祖洋
松本俊成
姜雅人
蒲生健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CN201195795Y publication Critical patent/CN201195795Y/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
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/16Imbalance
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48Preventing or reducing imbalance or noise
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005Methods for washing, rinsing or spin-drying
    • D06F35/007Methods for washing, rinsing or spin-drying for spin-drying only
    • 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
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22Mountings, 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 horizontal axis
    • 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
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26Unbalance; Noise level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • 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

The utility model aims at reducing vibration and noise caused by vibration when a washing machine is dewatering. The washing machine comprises a water tub (13) which is supported in a machine body (17), a rotary cylinder (11) which is arranged in the water tub (13) and can freely rotate, a motor (12) for driving the rotary cylinder (11) to rotate, a control device (21) for controlling the motor (12) to drive, a supporting device (15) for supporting the water tub (13), a vibration transducer (20) which used to detect vibration, and an oscillating control device (22) which inputs oscillating output signals which are detected by the vibration transducer (20) into the control device (21) as motor control signals.

Description

Washing machine
Technical field
The utility model relates to and a kind ofly is provided with the motor that can produce the rotary driving force that makes washtub rotation, thereby washs, the washing machine of operations such as rinsing, dehydration and drying.
Background technology
In general, washing machine roughly is divided into the forms such as drum-type that fall cleaning clothes (Patting type washing) of utilizing the current that reflux to come the impeller-type of cleaning clothes and utilizing clothing.
Pulsator washing machine drops into from the top and takes out washing clothes, and the direction of washtub is vertically, so be also referred to as upright type washing machine.Relative with it, the direction of the washtub in the tumbling-box washing machine is laterally, is called as horizontal washing machine.In addition, dryer generally also is to be horizontal.
Recently, introduced the idea of " universal design " (that is all users can both use easily) in the tumbling-box washing machine that has, cylinder that is washtub are obliquely installed with the form that the front portion upwarps, make the easier taking-up of washing clothes, the cleaning performance of patting washing is improved, and the drying time is compared also with upright type washing machine and can shorten.
Simultaneously, since tumbling-box washing machine in dehydration easily because of the unbalance generation vibration and the noise of washings, so the washing machine that also has alleviates vibration (example wherein can disclose the communique spy with reference to Japan Patent open 2006-136602) seeking with damper etc.
Fig. 8 is the structure chart of the tumbling-box washing machine that is obliquely installed before the washtub with sticking up, and wherein washtub 101 is supported by spring-damper 102, and stipulates its posture by spring 103 and spring 104.In addition, also be expected to alleviate the vibration of washtub 101 by spring-damper 102.
The structure chart of another kind of washing machine has been shown among Fig. 9.In this washing machine, the vibrating sensor 106 that utilization is installed in washtub 105 tops detects the vibration of washtub 105, according to its detection signal the rotating speed of motor 107 is controlled (example wherein can open flat 5-154275 with reference to the open communique spy of Japan Patent) by the dehydration control module again.
But existing stand type wave wheel washing machine is owing to be to drop into from the top and take out washings, so need carry out the washings that becomes very heavy after being soaked in water mentioned or the operation that bothers such as pull out.In addition, in the washing machine that as shown in Figure 8 the sort of cylinder is obliquely installed, washings is unbalance easily during dehydration, exists washtub 101 that the problem of very big vibration can take place.
In addition, in Fig. 9, though also detect the vibration of washtub by the vibrating sensor 106 that is installed in 105 tops, and by the dehydration control module according to its detection signal control rotating speed of motor, but this only is according to its degree rotating speed of motor to be controlled after detecting vibration again, can not alleviate vibration by the control motor energetically; And, alleviating vibration and only rely on the damper 108 that is arranged on washtub 105 belows to carry out, existence can not stably alleviate the problem of vibration of washing machine.
The utility model content
The utility model is intended to solve the problems referred to above of mentioning in the prior art, and its purpose is to detect the vibrational state of the steel ladle that comprises washtub, reduces its vibration by control, thereby alleviates vibration, noise when dewatering.
In order to address the above problem, washing machine of the present utility model comprises: the control device of the driving of control head roll motor rotating; The supporting arrangement of supporting steel ladle; Detect the vibrating sensor of vibration; The detected vibration output signal of described vibrating sensor is input to vibration control apparatus in the described control device as motor control signal.
Like this, in rinsing dehydration, owing to can detect and comprise the vibrational state of washtub at interior steel ladle, and then calculate the controlled quentity controlled variable that the vibratory output of sening as an envoy to diminishes, and the Electric Machine Control electric current is carried out FEEDBACK CONTROL by controlled quentity controlled variable, therefore, the vibration of steel ladle and body can be controlled during to dehydration, realizes alleviating the effect of vibration.
The technique effect that the utility model produces is as follows.The utility model can be controlled the vibration in when dehydration by Electric Machine Control, and the noise that alleviates the resonance in the dehydration, unbalance vibration and produce thereupon improves dehydrating speed, shortens dewatering time.
The utility model specific embodiment is summarized as follows.
The washing machine of the utility model the 1st scheme comprises: the steel ladle in being bearing in the body; Be arranged on the swing roller that can rotate freely in the described steel ladle; Drive the motor of described rotary drum rotating; Control the control device of the driving of described motor; Support the supporting arrangement of described steel ladle; Detect the vibrating sensor of vibration; With the detected vibration output signal of described vibrating sensor is input to vibration control apparatus in the described control device as motor control signal.Like this, by utilizing vibrating sensor to detect the vibrational state of steel ladle or body, and the electric current of motor is controlled according to detected result of oscillation, just can control the vibration of steel ladle and body, thereby vibration when alleviating dehydration and the noise that thereupon produces shorten dewatering time.
The 2nd scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration of body end face.Like this, by the vibration that can alleviate the body upper surface of control motor, thus the synchronous vibration and the unbalance vibration of body end face can alleviate dehydration the time, and alleviate the noise that thereupon produces.
The 3rd scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration of body side.Like this, by the control motor vibration of body side surface is alleviated, thereby can alleviate the synchronous vibration and the unbalance vibration of dehydration body side surface on opportunity, and alleviate the noise that thereupon produces.
The 4th scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration of body foot section.Like this, by the control motor vibration of body foot is alleviated, thereby can alleviate the synchronous vibration and the unbalance vibration of body foot section when dewatering, and alleviate the noise that thereupon produces.
The 5th scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration of steel ladle side.Like this, by the control motor vibration of steel ladle side is alleviated, thereby can alleviate the synchronous vibration and the unbalance vibration of steel ladle side when dewatering, and alleviate the noise that thereupon produces.
The 6th scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration of steel ladle bottom surface.Like this, by the control motor vibration of steel ladle bottom surface is alleviated, thereby can alleviate the synchronous vibration and the unbalance vibration of steel ladle bottom surface when dewatering, and alleviate the noise that thereupon produces.
The 7th scheme is specially, and the vibrating sensor of the 1st~the 6th arbitrary scheme detects synchronous vibration, and vibration control apparatus is input to the synchronous vibration that described vibrating sensor detects in the control device.Like this, by the control motor synchronous vibration of steel ladle or body is alleviated, thereby can alleviate the synchronous vibration when dewatering, and alleviate the noise that thereupon produces.
The 8th scheme is specially, and the vibrating sensor of the 1st~the 6th arbitrary scheme detects unbalance vibration, and vibration control apparatus is input to the unbalance vibration that described vibrating sensor detects in the control device.Like this, by the control motor vibration of unbalance steel ladle that causes or body is alleviated, thereby can alleviate when dehydration, and alleviate the noise that thereupon produces because of the unbalance vibration that causes.
The 9th scheme is specially, and the vibrating sensor in the 1st scheme detects the vibration on 3 orthogonal directions of body or steel ladle.Like this, steel ladle or the vibration of body on 3 orthogonal directions are alleviated, thereby can alleviate the vibration on 3 orthogonal directions when dewatering, and alleviate the noise that thereupon produces by the control motor.
The 10th scheme is specially, and the vibrating sensor of the 9th scheme detects the acceleration of body or steel ladle.Like this, by detecting at acceleration on 3 orthogonal directions to steel ladle or body, can steel ladle or the vibration of body on 3 orthogonal directions be alleviated by the control motor, thereby can alleviate the vibration of when dehydration, and alleviate the noise that thereupon produces at 3 orthogonal directions.
The 11st scheme is specially, and the vibrating sensor of the 9th scheme detects angular speed.Like this, by the angular speed on 3 orthogonal directions detects to steel ladle or body, just can control motor inclination, the vibration on 3 orthogonal directions of steel ladle or body alleviated, thereby can alleviate the vibration on 3 orthogonal directions when dewatering, and alleviate the noise that thereupon produces.
The 12nd scheme is specially, and the vibrating sensor of the 1st scheme is the Micro Electro Mechanical System device.Like this, sensor device is light and handy, can not be subjected to the influence of the quality of vibrating sensor when detecting the vibration of steel ladle or body, just can alleviate vibration by the control motor, thereby can alleviate vibration when dewatering, and alleviates the noise that thereupon produces.
The 13rd scheme is specially, and the vibration control apparatus of the 1st scheme has the sensor selecting arrangement of selecting to be used to carry out the sensor signal of vibration control according to rotating speed of motor.Like this,, carry out vibration control according to such signal again, just can alleviate synchronous vibration, thereby can alleviate the vibration when dewatering, and alleviate the noise that thereupon produces by the control motor by come the sensor signal of selective reaonance occurrence positions according to motor speed.
The 14th scheme is specially, and the vibration control apparatus of the 1st scheme has the vibration detection direction selecting arrangement of direction of selecting to be used to carry out the sensor signal of vibration control according to rotating speed of motor.Like this, sensor signal by coming the selective reaonance occurrence positions according to motor speed detect direction, carry out vibration control according to such signal again, just can alleviate synchronous vibration by the control motor, thereby the vibration when alleviating dehydration, and alleviate the noise that thereupon produces.
Description of drawings
Fig. 1 is the block diagram of the vibration control apparatus in the washing machine of the utility model the 1st scheme.
Fig. 2 is the block diagram of another example of the vibration control apparatus in this washing machine.
Fig. 3 is the block diagram of the another example of the vibration control apparatus in this washing machine.
Fig. 4 is the block diagram of the another example of the vibration control apparatus in this washing machine.
Fig. 5 is the block diagram of the another example of the vibration control apparatus in this washing machine.
Fig. 6 is the block diagram of the vibration control apparatus in the washing machine of the utility model the 2nd scheme.
Fig. 7 is the block diagram of the vibration control apparatus in the washing machine of the utility model the 3rd scheme.
Fig. 8 is the structure chart of existing tumbling-box washing machine.
Fig. 9 is the structure chart of another kind of existing tumbling-box washing machine.
In the above-mentioned accompanying drawing, 11 is swing roller, and 12 is motor, 13 is steel ladle, and 15 is support spring (supporting arrangement), and 16 is damping mechanism, 17 is body, 20 is 3 axle acceleration sensors (vibrating sensors), and 21 is control device, and 22 is vibration control apparatus, 23 is speed detector, 24 is the controlled quentity controlled variable calculation element, and 25 is adder, and 26 is drive unit.
The specific embodiment
With reference to the accompanying drawings embodiments more of the present utility model are elaborated.It is pointed out that simultaneously these embodiments of the present utility model do not have the effect that limits the utility model scope.
(embodiment 1)
Fig. 1 is the block diagram of the vibration control apparatus in the washing machine of the utility model the 1st embodiment.Among Fig. 1,10 is washing machine mechanism part; 11 is swing roller, plays the effect of the rotatable washtub that is used to hold washings; 12 carry out speed control for one side to swing roller 11 makes its motor rotating on one side, is made of brushless electric machine; 13 are the inner steel ladle that is provided with the swing roller 11 that is used to drop into washings and water; 18 is the washings input port; 17 for being provided with the body of steel ladle 13 and washings input port 18; 14 for gap between the body 17 that is used to eliminate steel ladle 13 and 18 places, washings input port and realize the seal that connects; 15 is support spring, is used as the supporting arrangement that supports steel ladle 13, makes it to keep prescribed form; 16 is the damping mechanism that is made of spring members and damped part, and the vibration that (during the motor rotation) takes place when being used to alleviate laundry reduces being delivered to body 17 and ground vibration; 19 vibration-proof rubbers when being provided with on the ground for washing machine, 20 vibrating sensors for the vibrational state that detects steel ladle 13 are made of 3 axle acceleration sensors.
21 is the control device of motor 12.Wherein, 23 is the speed detector that detects the rotary speed of motor, can be made of Hall integrated circuit; 24 controlled quentity controlled variable calculation elements for constituting by micro computer, according to the motor rotary speed of speed detector 23 outputs calculate and target rotational speed between error, and then calculate controlled quentity controlled variable; 26 for applying the drive unit of the converter circuit of drive current to motor 12.
22 is vibration control apparatus, and effect is that the output according to 3 axle acceleration sensors 20 calculates vibratory output (displacement), calculates the vibratory output of sening as an envoy to again and becomes zero controlled quentity controlled variable.25 is output and the output addition of vibration control apparatus 22 and the adder that the result is exported to drive unit 26 with controlled quentity controlled variable calculation element 24.
At first Electric Machine Control is described below.Control device 21 detects operator schemes such as washing, dehydration, drying after receiving the washing mode signal from the washing machine controller (not shown), will with the corresponding motor rotary speed of different operator schemes as target rotational speed.The motor 12 here keeps the dc brushless motor in 8 utmost points, 12 cracks of Hall element in being.Speed detector 23 is earlier according to the rotary speed that goes out motor 12 from the signal detection of Hall control of dust circuit.Then, calculate the error between the rotary speed of rotating speed of target and detected motor 12 by controlled quentity controlled variable calculation element 24, calculate the error of sening as an envoy to again and reach zero controlled quentity controlled variable.
Then, vibration control apparatus 22 receives the washing mode signal from washing machine controller, detects operator schemes such as washing, dehydration, drying, again to vibration control apparatus 22 send instruction that is with the control signal of the corresponding frequency band of operator scheme.Under the occasion of washing step (pattern), rotating speed is 40 rev/mins~120 rev/mins, and the control band setting is more than or equal to 2Hz.
In addition, under the occasion of dehydration, because rotating speed rises to 1800 rev/mins, so the control band setting is more than or equal to 30Hz.The drying step is adjusted the control frequency band according to the rotating speed of swing roller 11 too.
Vibration control system detects vibration according to the acceleration signal of 3 axle acceleration sensors 20, calculates the vibration of sening as an envoy to and reaches zero controlled quentity controlled variable, carries out FEEDBACK CONTROL.In the present embodiment, be earlier the FEEDBACK CONTROL amount to be added to by adder 25 on the controlled quentity controlled variable of motor speed control system particularly, again motor 12 is controlled, driven.That is to say, feed back to the driving that the Electric Machine Control amount is controlled motor 12, make the vibration vanishing by the vibratory output that will represent the motor oscillating system state amount.
Like this, by in washing machine, installing 3 axle acceleration sensors, detect the vibration of steel ladle, carrying out the control of vibration control and motor speed again, can carry out vibration control to steel ladle by motor, thereby alleviate and prevent the supporting device synchronous vibration that produces because of starting in the washing, dehydration, drying step of washing machine and supporting device vibration that the steel ladle synchronous vibration when normally rotating causes and the noise that therefore produces.
In addition, though the vibrating sensor in the present embodiment 1 is set at the upside of the side wall surface of steel ladle, the words that are arranged on as shown in Figure 2 on the end face of body also can produce same effect.
In addition, though the vibrating sensor in the present embodiment 1 is set at the upside of the side wall surface of steel ladle, the words that are arranged on as shown in Figure 3 on the side wall surface of body also can produce same effect.
In addition, though the vibrating sensor in the present embodiment 1 is set at the upside of the side wall surface of steel ladle, the words that are arranged on the bottom surface foot section of body as shown in Figure 4 also can produce same effect.
In addition, though the vibrating sensor in the present embodiment 1 is set at the upside of the side wall surface of steel ladle, the words that are arranged on as shown in Figure 5 on the steel ladle bottom surface also can produce same effect.
(embodiment 2)
Fig. 6 is the block diagram of the vibration control apparatus of the washing machine in the utility model embodiment 2.Because the basic comprising of vibration control apparatus is the same with embodiment 1, omits the description to basic comprising here.In addition, for the inscape identical, use the symbol identical with Fig. 1 with embodiment 1.
Different with Fig. 1 is, steel ladle 13 and body 17 are provided with a plurality of 3 axle acceleration sensors, and also is provided with the sensor selecting arrangement 31 of selecting the vibrating sensor that uses in the vibration control according to rotating speed.
In dehydration, rotating speed can rise to more than 900 rev/mins from initial 80 rev/mins.In rotating speed was 200 rev/mins~300 rev/mins scope, support spring 15 can resonate, and steel ladle 13 is vibrated.Therefore, sensor selecting arrangement 31 selects the sensor signal of vibrating sensor 20a or vibrating sensor 20b to carry out vibration control.
In rotating speed was 600 rev/mins~700 rev/mins scope, body 17 can resonate, so the sensor signal of sensor selecting arrangement 31 selection vibrating sensor 20d or vibrating sensor 20e is carried out vibration control.
When rotating speed reaches more than or equal to 900 rev/mins, can resonate in the bottom surface of steel ladle 13, so sensor selecting arrangement 31 selects the sensor signal of vibrating sensor 20c to carry out vibration control.
Like this, detect the vibration of steel ladle and body by on washing machine, installing a plurality of 3 axle acceleration sensors, carry out vibration control and motor speed control according to the different vibrating sensor of rotating speed different choice again, just can be controlled the vibration of steel ladle and body, be alleviated and supporting device vibration that the supporting device synchronous vibration when preventing that washing machine from starting in steps such as washing, dehydration, drying and the steel ladle synchronous vibration when normally rotating cause and the noise that produces therefrom by motor.
(embodiment 3)
Fig. 7 is the vibration control apparatus block diagram in the washing machine of the utility model embodiment 3.Because the basic comprising of vibration control apparatus is the same with embodiment 1, omits the description to its basic comprising here.In addition, for the inscape identical, use the symbol identical with Fig. 1 with embodiment 1.
Different with Fig. 1 is, is provided with vibration detection direction selecting arrangement 32 in the washing machine of embodiment 3, selects the transducing signal that is used to carry out vibration control from the transducing signal of 3 directions of 3 axle acceleration sensors.
In dehydration, when rotating speed rises, if washings is unbalance in the downside of swing roller 11, scope internal support spring 15 200 rev/mins~300 rev/mins of rotating speeds can resonate, specifically be that very big vibration at first takes place on fore-and-aft direction X, on left and right directions Y above-below direction Z, vibrate then.
In this case, vibration detection direction selecting arrangement 32 is at first selected sensor signal X according to the size of vibration, selects sensor signal Z to carry out vibration control then.If washings is unbalance in the front side, because the direction of vibration difference of very big resonance takes place, so vibration detection direction selecting arrangement 32 can be selected sensor signal according to situation.
Like this, detect the vibration of steel ladle and body by on washing machine, installing 3 axle acceleration sensors, select the vibrating sensor on the different direction of vibration to carry out vibration control and motor speed control according to vibratory output and rotating speed again, just can carry out vibration control to steel ladle and body by motor, alleviate and prevent washing machine in steps such as washing, dehydration, drying because of when starting supporting device synchronous vibration and supporting device vibration and the consequent noise that the synchronous vibration of steel ladle causes when normally rotating.
In addition, though in the present embodiment the detected acceleration signal of vibrating sensor is directly inputted in the control device, but be to use formation observation circuit such as acceleration signal and current of electric, again the quantity of state of observer imported, also can carry out vibration control.
In addition, though use in the present embodiment be acceleration transducer as vibrating sensor, be to use the words of angular-rate sensor such as gyrosensor also can reach same effect.
In sum, washing machine in the utility model carries out vibration control by the acceleration that detects steel ladle and body, can alleviate the vibration of steel ladle and body by Electric Machine Control, alleviate and supporting device vibration that the steel ladle synchronous vibration when supporting device synchronous vibration when preventing to start and normal rotation causes and the noise that therefore produces, so be very useful alleviating the vibration and the noise of washing machine when dehydration starts.

Claims (12)

1. washing machine is characterized in that comprising:
Steel ladle in being bearing in the body;
Be arranged on the swing roller that can rotate freely in the described steel ladle;
Drive the motor of described rotary drum rotating;
Control the control device of the driving of described motor;
Support the supporting arrangement of described steel ladle;
Detect the vibrating sensor of vibration; With
The detected vibration output signal of described vibrating sensor is input to vibration control apparatus in the described control device as motor control signal.
2. washing machine as claimed in claim 1 is characterized in that: described vibrating sensor is configured in the body end face.
3. washing machine as claimed in claim 1 is characterized in that: described vibrating sensor is configured in the organism sidewall face.
4. washing machine as claimed in claim 1 is characterized in that: described vibrating sensor is configured in the body foot section.
5. washing machine as claimed in claim 1 is characterized in that: described vibrating sensor is configured in the steel ladle side wall surface.
6. washing machine as claimed in claim 1 is characterized in that: described vibrating sensor is configured in the steel ladle bottom surface.
7. the washing machine described in each of claim 1~6, it is characterized in that: described vibrating sensor is an acceleration transducer.
8. washing machine as claimed in claim 7 is characterized in that: described vibrating sensor is 3 axle acceleration sensors.
9. as each described washing machine of claim 1~6, it is characterized in that: described vibrating sensor is an angular-rate sensor.
10. the washing machine described in each of claim 1~6, it is characterized in that: described vibrating sensor is a micro-electromechanical systems device.
11. washing machine as claimed in claim 1 is characterized in that; Described vibration control apparatus has the sensor selecting arrangement of selecting to be used to carry out the sensor signal of vibration control according to rotating speed of motor.
12. washing machine as claimed in claim 1 is characterized in that: described vibration control apparatus has the vibration detection direction selecting arrangement of direction of selecting to be used to carry out the sensor signal of vibration control according to rotating speed of motor.
CNU2007201820338U 2006-12-08 2007-12-07 Washing machine Expired - Fee Related CN201195795Y (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006331528 2006-12-08
JP2006331528A JP4867631B2 (en) 2006-12-08 2006-12-08 Washing machine

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CN200710186552.6A Expired - Fee Related CN101195954B (en) 2006-12-08 2007-12-07 Washing machine

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US20130118210A1 (en) * 2011-11-11 2013-05-16 Samsung Electronics Co., Ltd. Washing machine having vibration reducing apparatus and vibration reducing method using the same
CN103668862A (en) * 2012-09-24 2014-03-26 Lg电子株式会社 Washing machine and control method for the same
CN101195954B (en) * 2006-12-08 2014-05-07 松下电器产业株式会社 Washing machine
CN105019191A (en) * 2014-04-30 2015-11-04 青岛海尔洗衣机有限公司 Eccentricity detection method for washing machine

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