CN102884237B - Washing machine - Google Patents
Washing machine Download PDFInfo
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- CN102884237B CN102884237B CN201180022691.XA CN201180022691A CN102884237B CN 102884237 B CN102884237 B CN 102884237B CN 201180022691 A CN201180022691 A CN 201180022691A CN 102884237 B CN102884237 B CN 102884237B
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- damper
- damping force
- weight
- tank
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—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 horizontal axis
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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
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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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
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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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—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 horizontal axis
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
Abstract
A washing machine is provided with an outer box; a water tub positioned inside the outer box; a rotating tub positioned inside the water tub and driven to rotate; a suspension which comprises a damper for damping the vibration of the water tub and capable of varying the damping force and elastically supports the water tub inside the outer box; and a control means which performs control so as to keep the damping force of the damper constant during a predetermined detecting operation or a control means which performs control so as to increase the damping force of the damper with the decrease of the detected weight of the laundry according to the result of the detection performed by a laundry weight detection means.
Description
Technical field
Embodiments of the present invention relate to rinsing maching.
Background technology
In traditional rinsing maching, tank is positioned at the inside of outer container, and cylinder is positioned at the inside of this tank.Cylinder is driven by the motor outside tank and rotates.Tank is supported on the base plate of outer container by suspension flexibility.This suspension possesses the damper (damper) of the tank vibration attenuation made with drum vibrates.This damper adopts the damper that damping force is constant usually.But, in recent years, consider the damper using damping force variable.As the damper that damping force is variable, consider the formation adopting functional fluid as working fluid.
Functional fluid refers to the fluid making the stream of viscosity etc. become (rheology) character function ground by controlling the outside physical quantity that applies to change.This functional fluid comprises makes the fluid of viscosity change and magnetic viscosity fluid and electric viscous fluid by applying electric flux.Wherein, magnetic viscosity fluid is such as the ferromagnetism particle having disperseed iron, carbonyl iron etc. in oil.If this magnetic viscosity fluid applies magnetic field, the then catenulate cluster of ferromagnetism particle shape (cluster), thus viscosity rises.If electricity viscous fluid applies electric field, then viscosity rises (reference example is as patent document 1 ~ 4).
Patent document 1: Japanese Unexamined Patent Application Publication 2002-502942 publication
Patent document 2: Japanese Unexamined Patent Publication 2005-291284 publication
Patent document 3: Japanese Unexamined Patent Publication 2008-183297 publication
Patent document 4: Japanese Unexamined Patent Publication 2008-295906 publication
Summary of the invention
The damper of above-mentioned functions fluid is used by the viscosity of varying functionality fluid, damping force to be changed.Such as, in drum-type washing machine, when dehydrating stroke starts, before reaching the rotary speed occurring that tank resonates, increase the damping force of damper.Thus, avoid resonating with tank, optimize the speed-raising performance of the drum rotating in dehydrating stroke.When dehydrating stroke is afterwards stablized (during cylinder High Rotation Speed), reduce the damping force of damper.Thus, the vibration passing of tank can be avoided to outer container, and, this vibration passing can be avoided to the ground in the room of placement rinsing maching.
And, such as, in drum-type washing machine, the imbalance that the bias (being biased) of washings when detecting drum rotating causes, with this unbalanced size respectively below predetermined size for condition, make the rotary speed of cylinder increase step by step.In addition, such as, in drum-type washing machine, in the weight of the initial detection washings of washing stroke, carry out the determination of water level and/or the setting etc. of wash time.And, such as, in drum-type washing machine, also in the weight of the initial detection washings of dry trip, carry out the setting etc. of drying time.
But as mentioned above, carry out the occasion of the detection of the weight of unbalanced detection and/or washings when drum rotating, it is suitable for not knowing how the variable attenuation power of damper changes.
Thus, when the 1st object is to provide and carries out predetermined detection when drum rotating, the rinsing maching of the damping force of the variable damper of damping force can well be controlled.
In addition, as mentioned above, by with the unbalanced size detected respectively below predetermined size for condition makes the rotary speed of cylinder rise step by step, can suppress vibration generation while carry out dehydration operate.
But imbalance during drum rotating also changes because of the amount (weight) of washings.In the past, the situation that imbalance when not tackling drum rotating changes because of the weight of washings.
Thus, the 2nd object is to provide the rinsing maching that can control the damping force of damper according to the weight of washings.
The rinsing maching of present embodiment possesses outer container, tank, swivelling chute, suspension and control unit.
Tank is positioned at the inside of this outer container.Swivelling chute is positioned at the inside of this tank and is driven in rotation.Suspension has makes the vibration attenuation of tank and the damper that damping force can be made to change, and supports tank in the inner elastomeric of outer container.Control unit carries out controlling to make the damping force of damper to keep certain in predetermined testing.
In addition, the rinsing maching of present embodiment possesses outer container, tank, swivelling chute, washing weight detecting unit, suspension and control unit.
Tank is positioned at the inside of this outer container.Swivelling chute is positioned at the inside of this tank and is driven in rotation.Washing weight detecting unit detects the weight of the washings existed in the inside of swivelling chute.Suspension has makes the vibration attenuation of tank and the damper that damping force can be made to change, and supports tank in the inner elastomeric of outer container.The damping force that control unit carries out the washing weight that controls to make to detect damper more at least according to the testing result of washing weight detecting unit is larger.
Accompanying drawing explanation
Fig. 1 represents the 1st embodiment, is the sequential chart of the control content of dehydrating stroke.
Fig. 2 is the vertical disconnected side view of the rinsing maching entirety that partial breakage represents.
Fig. 3 is the longitudinal section of suspension monomer.
Fig. 4 is the block diagram electrically formed.
Fig. 5 represents the 2nd embodiment, is the sequential chart of the control content of total travel.
Fig. 6 is the figure suitable with Fig. 5 representing the 3rd embodiment.
When Fig. 7 is cleaning, rinsing work time, dry work time, the diagram of the physical relationship of the washing weight detected and the damping force of damper.
Fig. 8 is the diagram of the linear relationship of the damping force of washing weight and the damper detected.
When Fig. 9 is dewatering work, the diagram of the physical relationship of the washing weight detected and the damping force of damper.
Figure 10 represents the 4th embodiment, is the diagram of the class relationship of the damping force of washing weight and the damper detected.
Figure 11 is the figure suitable with Fig. 3 of the embodiment representing the 5th.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of the rinsing maching of multiple embodiment.In addition, in each embodiment, the constituting parts that essence is identical encloses same symbol, and omission is described.
[the 1st embodiment]
Below, referring to figs. 1 through Fig. 4, the 1st embodiment is described.
First, Fig. 2 represents the entirety structure of such as drum-type washing machine (scrubbing-and-drying unit).Rinsing maching is using outer container 1 as shell.Washings gateway 2 is formed in the substantially central portion of the front face (on the right side of Fig. 2) of this outer container 1.Lid 3 pivotal support of this washings gateway 2 of opening and closing is in outer container 1.Guidance panel 4 is arranged on the top of the front face of outer container 1.The control device 5 that running controls is arranged on the inner side (in outer container 1) of guidance panel 4.
Tank 6 arranges in the inside of outer container 1.This tank 6 forms it axially in the transverse axis cylindrical shape that roughly fore-and-aft direction (Fig. 2 be roughly left and right directions) extends.The state that tank 6 is tilted with forward upward by the suspension 7 (Fig. 2 illustrates an only side) of pairing left and right is flexibly supported on the base plate 1a of outer container 1.The detailed configuration of suspension 7 is by aftermentioned.
Motor 8 is installed at the back of tank 6.This occasion, this motor 8 comprises the brushless motor of such as direct current.This motor 8 is outer rotor shapes, and the rotating shaft (diagram is omitted) installed at the central part of rotor 8a is inserted through the inside of tank 6 via bearing block 9.
Cylinder 10 arranges in the inside of tank 6.This cylinder 10 also forms it axially in the transverse axis cylindrical shape of roughly fore-and-aft direction extension.The central part at the rear portion of cylinder 10 is installed in the leading section of the rotating shaft of said motor 8.Thus cylinder 10 is supported with and the state that forward upward tilts concentric with tank 6.In addition, cylinder 10 is rotated by motor 8.Thus cylinder 10 is swivelling chutes, motor 8 plays the function of the drum drive that cylinder 10 is rotated.
At all sidepieces (metastomium) of cylinder 10, form a large amount of apertures 11 in universe.In addition, the front face of cylinder 10 has opening portion 12, and the front face of tank 6 has opening portion 13.Between the opening portion 13 and washings gateway 2 of tank 6, connected by the bellows 14 of ring-type.Its result, the opening portion 13 of washings gateway 2 via bellows 14, tank 6 and the opening portion 12 of cylinder 10, be connected to the inside of cylinder 10.
Drainpipe 16 is connected to the lowest part i.e. rear portion of bottom of tank 6 via draining valve 15.In addition, drying unit 17 arranges from the back of tank 6 throughout top and front.This drying unit 17 has dehumidifier 18, pressure fan 19 and heater 20.This drying unit 17 is by carrying out heating after the air dewetting in tank 6 and returning the circulation in tank 6, and the washings that the inside of cylinder 10 is existed is dry.
And vibrating sensor 21,22 is respectively installed to the front and rear on the top of tank 6.These vibrating sensors 21,22 all such as comprise acceleration transducer.When cylinder 10 rotates, if the bias of the washings of inside causes imbalance, then with the vibration of cylinder 10, tank 6 vibrates.Vibrating sensor 21,22 detects this vibration.In essence, vibrating sensor 21,22 plays the function of unbalanced uneven detecting unit when being rotated by the vibration detection cylinder 10 of tank 6.
Here, the detailed configuration of suspension 7 is described.Suspension 7 has damper 23.As shown in Figure 3, this damper 23 possesses the hydraulic cylinder 24 that comprises magnetic material and comprises the axle 25 of same magnetic material as master unit.Wherein, hydraulic cylinder 24 has connecting member 26 in upper end.As shown in Figure 2, this connecting member 26 leads to top from below, is fastened to the installing plate 27 that tank 6 has via elastic seat board 28 grade by nut 29.Thus hydraulic cylinder 24 is installed to tank 6.
Relatively, axle 25 has linking part 25a in bottom.As shown in identical Fig. 2, this linking part 25a leads to below from top, the installing plate 30 that the base plate 1a being fastened to outer container 1 by nut 32 via elastic seat board 31 grade has.Thus axle 25 is installed to the base plate 1a of outer container 1.
As shown in Figure 3, upper yoke 33 is pressed into fixed the pars intermedia of the inside of hydraulic cylinder 24.Upper yoke 33 comprises magnetic material, and the upside being formed in inner peripheral portion has the short cylinder shape in space 34.The upper bearing (metal) 35 of ring-type receives fixing (maintenance) in this space 34.Upper bearing (metal) 35 comprises such as oil-impregnated sintered metal.
Upper coil 36 insert with the state being wound on upper shuttle (bobbin) 37 and fix (maintenance) in the inside of hydraulic cylinder 24 on position immediately below yoke 33.In addition, the middle yoke 38 of ring-type is pressed into and is fixed in the inside of hydraulic cylinder 24 and goes up position immediately below shuttle 37.Middle yoke 38 comprises magnetic material.
And, lower coil 39 insert with the state being wound on lower shuttle 40 and fix (maintenance) in the inside of hydraulic cylinder 24 in the middle of position immediately below yoke 38.The lower bearing 43 of the lower yoke 41 of ring-type, the seal 42 of lip-like and ring-type inserts with the state that the inner peripheral portion of the bracket 44 at short cylinder shape is received and fixes (maintenance) position immediately below the lower shuttle 40 of the inside of hydraulic cylinder 24.Wherein, lower yoke 41 and bracket 44 comprise magnetic material, and lower bearing 43 comprises such as oil-impregnated sintered metal.
And seal 45 is arranged between yoke 33 and upper shuttle 37.Seal 46 is arranged between shuttle 37 and middle yoke 38.Seal 47 is arranged between middle yoke 38 and lower shuttle 40.Seal 48 is arranged between lower shuttle 40 and lower yoke 41.These seals 45 ~ 48 comprise such as O ring.
Axle 25 is from the lower ending opening portion 49 of hydraulic cylinder 24, and order through lower bearing 43, seal 42, lower yoke 41, lower shuttle 40, middle yoke 38, upper shuttle 37, upper yoke 33 and upper bearing (metal) 35, insert the inside of hydraulic cylinder 24.While the axle 25 of this insertion is supported by lower bearing 43 and upper bearing (metal) 35, axial reciprocating can be carried out relative to these lower bearings 43, seal 42, lower yoke 41, lower shuttle 40, middle yoke 38, upper shuttle 37, upper yoke 33 and upper bearing (metal) 35.In addition, the part in the inside of hydraulic cylinder 24 above upper yoke 33 forms cavity 50.The upper end of the axle 25 inserted reaches this cavity 50, by retainer ring 51 anticreep.
And, between the axle 25 inserted and upper shuttle 37, axle 25 between axle 25 and lower shuttle 40, near them and between upper yoke 33, between axle 25 and middle yoke 38 and between axle 25 and lower yoke 41, as functional fluid, be filled with magnetic viscosity fluid 52 (MR fluid) in this occasion.
As mentioned above, functional fluid refers to the fluid rheological equationm of state of viscosity etc. functionally being changed by controlling the outside physical quantity applied.This functional fluid comprises makes the fluid of viscosity change and magnetic viscosity fluid 52 and not shown electric viscous fluid by applying electrical energy.In present embodiment, as functional fluid, adopt the magnetic viscosity fluid 52 viscous characteristics being changed according to the intensity in magnetic field (magnetic field).Also can replace, adopt the electric viscous fluid (ER fluid) viscous characteristics being changed according to the intensity of electric field (electric field) as functional fluid.
As mentioned above, magnetic viscosity fluid 52 has such as disperseed the ferromagnetism particle of iron, carbonyl iron etc. in oil.If this magnetic viscosity fluid 52 applies magnetic field, the then catenulate cluster of ferromagnetism particle shape, thus viscosity rises.Seal 42 and seal 45 ~ 48 have the function of the leakage suppressing this magnetic viscosity fluid 52.
Damper 23 is as above formed.In this damper 23, be positioned at the bottom of the axle 25 of the below of the outside of hydraulic cylinder 24, embed and secure spring bearing block 53.The helical spring 54 formed by the compression helical spring around axle 25 is arranged between this spring bearing block 53 and bottom of hydraulic cylinder 24.Suspension 7 is so formed.This suspension 7 is assembled between the base plate 1a of tank 6 and outer container 1, thus tank 6 is flexibly supported on the base plate 1a of outer container 1.
In addition, the two upper and lower coils 36,39 of damper 23 are connected with the drive circuit (illustrate and omit) of the outside of damper 23 via not shown lead-in wire.Coil 36,39 is energized by this drive circuit.
Fig. 4 block diagram illustrates the electric formation centered by control device 5.Control device 5 comprises such as microcomputer, plays the function of the control unit of whole runnings of index drum formula rinsing maching as described later.Various operation signal inputs this control device 5 from the operation inputting part 55 comprising the various console switch that guidance panel 4 has.
In addition, water level detecting signal is from level sensor 56 input control device 5 of the water level detected in tank 6, rotation detection signal is from turn-sensitive device 57 input control device 5 of the rotation of detection motor 8, and vibration detection signal (uneven detection signal) is from vibrating sensor 21,22 input control device 5.
In addition, control device 5, according to the rotation detection signal from above-mentioned turn-sensitive device 57, carries out the rotation number of the rotation number of motor 8 and cylinder 10 divided by the computing detecting required time (the detection required time of rotation number).Thus control device 5 also plays the function of the rotary speed detecting unit of the rotary speed detecting cylinder 10.
Then, control device 5, according to the control program of various input, testing result and pre-stored, applies drive control signal to drive circuit 59.Drive circuit 59 drives upper coil 36 in feed water valve 58, motor 8, draining valve 15, the motor 19b (with reference to FIG.) of wind feeding blades 19a (with reference to Fig. 2) of the pressure fan 19 driven in drying unit 17, the heating rod 20a (with reference to FIG.) of heater 20 in drying unit 17 and the damper 23 supplied water in tank 6 and lower coil 39.
Then, the effect in the rinsing maching of above-mentioned formation is described.
In the rinsing maching of above-mentioned formation, after running being started according to the operation of guidance panel 4, control unit and control device 5 perform running (with reference to Fig. 5) according to the order of cleaning stroke, dehydrating stroke, rinsing stroke, dehydrating stroke, dry trip.
Fig. 1 represents the action in dehydrating stroke wherein.Dehydrating stroke makes cylinder 10 rotate, and the mode that this rotary speed is represented with symbol R rises step by step, is broken away from by the water remaining in washings and discharge by centrifugal force.
In this dehydrating stroke, with the rotation of cylinder 10, tank 6 mainly vibrates along above-below direction.Respond the up-down vibration of this tank 6, in suspension 7, at the hydraulic cylinder 24 that tank 6 is installed, with upper yoke 33 and upper bearing (metal) 35, upper shuttle 37 and upper coil 36, middle yoke 38, lower shuttle 40 and lower coil 39, bracket 44 and lower yoke 41, seal 42, lower bearing 43, while making helical spring 54 flexible, vibrate along above-below direction around axle 25.
Like this, hydraulic cylinder 24 with above-mentioned each parts when above-below direction vibrates, between axle 25 and upper shuttle 37 and lower shuttle 40, and the frictional resistance that axle 25 near them and the magnetic viscosity fluid 52 of filling between upper yoke 33, middle yoke 38 and lower yoke 41 are formed by its viscosity applies damping force to suspension 7, makes the amplitude of tank 6 decay.
Control device 5 is at initial stage of this dehydrating stroke (during the startup of dehydrating stroke, before the rotary speed of cylinder 10 reaches such as 400 (rpm)), to the electric current of the upper and lower logical predetermined value (such as 1 (A)) of two coils 36,39 of damper 23.
After coil 36,39 is energized, magnetic field occurs, and magnetic field is applied to magnetic viscosity fluid 52, and the viscosity of magnetic viscosity fluid 52 improves.In detail, be energized by making coil 36,39, there is the magnetic circuit through yoke 38-magnetic viscosity fluid 52-axle 25 in the middle of yoke 33-hydraulic cylinder 24-on axle 25-magnetic viscosity fluid 52-, the magnetic circuit through yoke 41-magnetic viscosity fluid 52-axle 25 under yoke 38-hydraulic cylinder 24-bracket 44-in the middle of axle 25-magnetic viscosity fluid 52-occurs simultaneously.Thus the viscosity of the magnetic viscosity fluid 52 in the place that each flux passes through improves.Especially, between the high axle 25 of flux density and upper yoke 33, and between middle yoke 38 and axle 25, between lower yoke 41 and axle 25, the viscosity of each magnetic viscosity fluid 52 improves, and frictional resistance increases.
Thus hydraulic cylinder 24, with above-mentioned each parts (two particularly upper and lower coils 36,39 and upper yoke 33, middle yoke 38 and lower yoke 41), the frictional resistance when above-below direction vibrates increases.Therefore, as shown in " damping force: large " in left side in Fig. 1, the damping force of damper 23 becomes large.Thus when occurring that the dehydrating stroke of the resonance of tank 6 starts, the damping force of the damper 23 of the rotation of the cylinder 10 (reach such as 400 (rpm) before) becomes large, avoids the generation of the resonance of tank 6, improves the speed-raising performance of the rotation of cylinder 10.
In addition, now, as shown in " the uneven detection " on the left of Fig. 1, according to the vibration detection signal of vibrating sensor 21,22, the rotation detecting cylinder 10 is uneven.That is, control device 5 make the rotary speed of cylinder 10 increase at different levels in unbalanced testing result below predetermined value time, the rotary speed of cylinder 10 is risen to secondary (next stage).Thus control device 5, while the state that the rotation of the cylinder 10 of assurance more reliably at different levels is uneven little, makes the rotary speed of cylinder 10 rise step by step.
When detecting the rotation imbalance of this cylinder 10, control device 5 makes the damping force of damper 23 keep large and is set to certain.That is, control device 5 is between uneven detection period, and the two upper and lower coils 36,39 to damper 23 carry out the energising of the electric current of 1 (A) described above, remain unchanged.
After the rotary speed of cylinder 10 reaches 400 (rpm), control device 5 stops the unbalanced detection of the rotation of cylinder 10, makes the rotary speed of cylinder 10 keep 400 (rpm) with scheduled time T.Under the situation that the rotary speed of this situation and cylinder 10 is certain, control device 5 reduces energising to the two upper and lower coils 36,39 of damper 23 and final power-off.Thus, control device 5, as Fig. 1 from " damping force change " to " damping force: little " shown in, the damping force of damper 23 diminishes.In addition, control device 5, by reducing the energising of coil 36,39 gradually in the scheduled time of such as 15 (second) left and right, makes the damping force of this damper 23 reduce (change) with predetermined variable gradient.
And then, control device 5 is if next " the uneven detection " in Fig. 1 is namely as Fig. 1 shown in the 2nd " uneven detection ", carries out imbalance detection (the unbalanced detection of rotation based on the cylinder 10 of the vibration detection signal of vibrating sensor 21,22) making the rotary speed of cylinder 10 increase further from 400 above-mentioned (rpm) from left side.Then, when this testing result is below predetermined value, till control device 5 makes the rotary speed of cylinder 10 rise to secondary (such as 950 (rpm)).
Then, control device 5 is as next again " the uneven detection " in Fig. 1, namely Fig. 1 is from left side shown in the 3rd " uneven detection ", and the imbalance of carrying out making the rotary speed of cylinder 10 increase further from 950 above-mentioned (rpm) detects (the unbalanced detection of rotation based on the cylinder 10 of the vibration detection signal of vibrating sensor 21,22).Then, when this testing result is below predetermined value, till control device 5 makes the rotary speed of cylinder 10 rise to final level (such as 1200 (rpm)).
Control device 5 continued cylinder 10 is rotated with the rotary speed of final level with the scheduled time.During this period (rotary speed of cylinder 10 rises from 400 above-mentioned (rpm), to cylinder 10 with during the rotary speed rotation set time of final level), control device 5 makes the damping force of damper 23 be maintained little.But correspondingly occur although the vibration of tank 6 is during this period little.Therefore, this vibration passing must be avoided to outer container 1, and be delivered to the ground in the room that rinsing maching is set further.Therefore, now, control device 5 reduces the damping force of damper 23, is prevented the reception and registration of above-mentioned vibration by the elasticity of the helical spring 54 of suspension 7.
After this scheduled time, control device 5 stops the rotary actuation of cylinder 10, and rotary speed is dropped to till 0.Like this, when the rotary speed of cylinder 10 drops to 0, the speed territory that this rotary speed is occurred by the resonance of tank 6.Therefore, control device 5 makes the two upper and lower coils 36,39 of damper 23 again pass to the electric current of 1 (A).Thus control device 5 as the next one " damping force: large " in Fig. 1, that is, shown in the right side of Fig. 1 shown " damping force: large ", increases the damping force of damper 23, avoids the generation of the resonance of tank 6.
Control device 5 behind the speed territory that the rotary speed of cylinder 10 is occurred by the resonance of above-mentioned tank 6, by the damping force of the energising and the damper 23 increased in the latter stage that further power-off reduces this dehydrating stroke that reduce two upper and lower coils 36,39.
As described above, rinsing maching according to the present embodiment, supports in the inner elastomeric of outer container 1 suspension 7 being built-in with the tank 6 of the cylinder 10 of rotary actuation, has the damper 23 of the vibration attenuation making tank 6.This damper 23 is the dampers that damping force can be made to change.In the unbalanced detection (" the uneven detection " of the leftmost side of Fig. 1) that uneven detecting unit carries out, control device 5 makes the damping force of damper 23 keep certain.
The unbalanced detection that uneven detecting unit carries out is carried out in the rotation of cylinder 10.In the rotation of this cylinder 10, if the damping force change of damper 23, then the restraint change of the vibration of tank 6, easily vibrates at tank 6.Therefore, correctly unbalanced detection cannot be carried out.Rinsing maching according to the present embodiment, control device 5, in unbalanced testing, makes the damping force of damper 23 keep certain.Thus the restraint of the vibration of tank 6 does not change, be difficult to vibrate at tank 6.Thus unbalanced detection becomes accurate, the control based on this unbalanced detection also becomes accurate.
That is, rinsing maching according to the present embodiment, when carrying out unbalanced detection when cylinder 10 rotates, can well control, the damping force of the damper 23 making damping force variable can not make a very bad impression to unbalanced detection.
In addition, rinsing maching according to the present embodiment, when the damping force of damper 23 is changed (when Fig. 1 shown " damping force " is changed), the control that the damping force of this damper 23 is changed is carried out under the situation that the rotary speed of cylinder 10 is certain.And then, the imbalance of carrying out uneven detecting unit detects (" imbalance detects " with reference to the centre in 3 " uneven detection " shown in Fig. 1).
Under the situation of the rotary speed not necessarily of cylinder 10, if the damping force change of damper 23, then because the instability of cylinder 10 rotates and the change of restraint of the vibration of tank 6, easily vibrate at tank 6.Therefore, unbalanced detection subsequently cannot accurately be carried out.Rinsing maching according to the present embodiment, the control that the damping force of damper 23 is changed is carried out under the situation that the rotary speed of cylinder 10 is certain.That is, under the indeclinable situation of the rotary speed of cylinder 10, make the damping force of damper 23 change.Thus, be difficult to vibrate at tank 6.Therefore, the unbalanced detection of (immediately the damping force change of damper 23 is rear) subsequently becomes accurate, and the control detected based on this imbalance also becomes accurate.
That is, this occasion, when the imbalance of carrying out when cylinder 10 rotates detects, also can well control, the damping force of the damper 23 making damping force variable can not make a very bad impression to unbalanced detection.
And rinsing maching according to the present embodiment, the control making the damping force of damper 23 change (making the control that shown in Fig. 1, " damping force " changes) is carried out with predetermined variable gradient.Here, if the damping force of damper 23 sharply changes, then, easily there is abnormal vibrations at tank 6 in the impact owing to now occurring.Rinsing maching according to the present embodiment, the control that the damping force of damper 23 is changed is carried out with predetermined variable gradient, and the damping force avoiding damper 23 sharply changes.Therefore, there is not abnormal vibrations at tank 6.Therefore, the impact of the repercussions of abnormal vibrations can not be subject to, more accurately can perform unbalanced detection subsequently.Thus, more accurately can perform the control based on this unbalanced detection.
In addition, in the damper 23 that suspension 7 has, in each parts that the inside of hydraulic cylinder 24 possesses, the parts at upper and lower both ends are upper bearing (metal) 35 and lower bearing 43, between these upper bearing (metal)s 35 and lower bearing 43, possess remaining parts (upper yoke 33, upper coil 36 and upper shuttle 37, middle yoke 38, lower coil 39 and lower shuttle 40, lower yoke 41, seal 42 etc.).That is, in the inside of hydraulic cylinder 24, can by the upper bearing (metal) 35 at upper and lower both ends and lower bearing 43 back shaft 25.Thus axle 25 is when axially relatively reciprocating, and this axle 25 is difficult to shake, and the interval between axle 25 and coil 36,39 is difficult to variation.Thus the magnetic field occurred from coil 36,39 acts on magnetic viscosity fluid 52 equably, and the damping force of damper 23 can be made to change accurately further.
Relative to more than, Fig. 5 represents the 2nd embodiment, and Fig. 6 to Fig. 9 represents the 3rd embodiment, and Figure 10 represents the 4th embodiment, and Figure 11 represents the 5th embodiment.Enclose same symbol with the 1st embodiment respectively with a part, it illustrates omission, and different parts is only described.
[the 2nd embodiment]
Fig. 5 represents the control content in the 2nd embodiment.As aforementioned, in the rinsing maching of above-mentioned formation, according to the operation of guidance panel 4, after running starts, control unit and control device 5 perform running according to the order of cleaning stroke, dehydrating stroke, rinsing stroke, dehydrating stroke, dry trip.
In cleaning stroke, control device 5 carries out the weight detecting work (washing weight testing) of the weight (be not the capacity of washings, but the washings amount of weight meaning) of the washings detecting collecting in cylinder 10 at first.Now, the washings of collecting in cylinder 10, for before washing, is therefore dry cloth (washings of dry state).Thus this weight detecting work is the work of dry cloth weight detecting, the rinsing maching of present embodiment has dry cloth weight detecting function.
Dry cloth weight detecting work, such as rotate the time needed for rotary speed reaching predetermined according to cylinder 10 and subsequently by stopping the driving of cylinder 10 to make cylinder 10 inertia rotate and the time required till making the rotary speed of cylinder 10 drop to predetermined rotary speed, detected the weight of washings by the rotary load of motor 8.Thus in this dry cloth weight detecting work, turn-sensitive device 57 and control device 5 play the function of washing weight detecting unit.
When this dry cloth weight detecting function carries out the detection of washing weight, control device 5 makes the two upper and lower coils 36,39 of damper 23 pass to the electric current of 1 (A), and continues this "on" position.Thus control device 5 makes the maintenance of the damping force of damper 23 certain and maximum.
Then, control device 5 makes feed water valve 58 open, and carries out the water supply work of supplying water in tank 6, until the water level corresponding to the washing weight detected.Now, the supply of the lotion placed at not shown lotion box is carried out with supplying water simultaneously.
After water supply work, control device 5 is just alternately rotating against both direction with low speed by making cylinder 10, mainly to carry out the cleaning of " thump and clean " to washings with the corresponding time span of the washing weight detected (dry cloth weight).During this cleaning, tank 6, also with the rotation of cylinder 10, mainly vibrates along above-below direction.Therefore, suspension 7 produces the movement same with during above-mentioned dehydrating stroke and/or motion in each portion.But, the cylinder 10 during this cleaning rotate to be low speed.Therefore, the movement in each portion is less than the movement in each portion during above-mentioned dehydrating stroke.
Thus now, control device 5 passes to the electric current (such as 0.5 (A)) less than the electric current (1 (A)) during above-mentioned dehydrating stroke to the two upper and lower coils 36,39 of damper 23.Thus control device 5 appropriateness improves the viscosity of magnetic viscosity fluid 52, and appropriateness increases the damping force of damper 23, suppresses the vibration of tank 6 now.
At the end of cleaning stroke, control device 5 is opened by making draining valve 15, carries out the drainage works from tank 6 internal drainage.In this drainage works, control device 5 makes to stop (power-off) to the energising of the two upper and lower coils 36,39 of damper 23.Thus now, the viscosity of magnetic viscosity fluid 52 is not improved by magnetic force.Thus the damping force of damper 23 recovers the size obtained by the natural viscosity of magnetic viscosity fluid 52.
Then the work in dehydrating stroke is same with the explanation of the 1st above-mentioned embodiment.But this dehydrating stroke is to carry out with the corresponding time span of the washing weight detected (dry cloth weight).
Then in rinsing stroke, control device 5 is initial by making feed water valve 58 open, and carries out the water supply work of supplying water in tank 6, until water level corresponding with the above-mentioned washing weight (dry cloth weight) detected.Then, control device 5 is just alternately rotating against both direction with low speed by making cylinder 10, mainly to carry out the rinsing work of " knocking rinsing " to washings with the corresponding time span of the above-mentioned washing weight (dry cloth weight) detected.Then, control device 5 is opened by making draining valve 15, carries out the drainage works from tank 6 internal drainage.In this rinsing stroke, control device 5 is same with above-mentioned cleaning stroke, carries out the energising of the two upper and lower coils 36,39 to damper 23.
Then the work in dehydrating stroke is identical with the explanation of the 1st above-mentioned embodiment.But this dehydrating stroke is to carry out with the corresponding time span of the washing weight detected (dry cloth weight).
Then, control device 5 carries out dry trip.In this dry trip, control device 5 also carries out the weight detecting work of the weight (washing weight) detecting the washings existed in cylinder 10 at first.Now, the washings existed in cylinder 10 is the state after cleaning stroke, rinsing stroke, dehydrating stroke, is therefore wet cloth (washings of wet condition).Thus this weight detecting work is the work of wet cloth weight detecting, the rinsing maching of present embodiment also has wet cloth weight detecting function.
Wet cloth weight detecting work is to carry out with the identical content of aforesaid dry cloth weight detecting work.When this wet cloth weight detecting function carries out the detection of washing weight, control device 5 also passes to the electric current of 1 (A) identical with the electric current in the work of dry cloth weight detecting to the two upper and lower coils 36,39 of damper 23, and continues this "on" position.Thus control device 5 makes the maintenance of the damping force of damper 23 certain and maximum.
Then, control device 5, with time span corresponding with the washing weight detected (wet cloth weight), carries out by making cylinder 10 rotate and making drying unit 17 work and make the drying work of washings drying.Now, during the cleaning of control device 5 with above-mentioned cleaning stroke and same when the rinsing of rinsing stroke works, the two upper and lower coils 36,39 of damper 23 are energized.
Like this, in present embodiment, when the washings that the inside that rinsing maching has cylinder 10 exists is dry cloth, detect the dry cloth weight detecting function of its weight.When this dry cloth weight detecting function carries out the detection of washing weight, the damping force of damper 23 is made to keep certain.Thus during dry cloth weight detecting, the restraint of the vibration of damper 23 pairs of tanks 6 does not change, and is difficult to vibrate at tank 6.Thus cylinder 10 can stablize rotation, therefore, the detection of the washing weight (dry cloth weight) that dry cloth weight detecting function carries out also can accurately be carried out, and the control based on the detection of this washing weight also can accurately be carried out.
That is, rinsing maching according to the present embodiment, when carrying out the detection of the weight of washings (dry cloth), can well control, the damping force of the damper 23 making damping force variable does not make a very bad impression to the detection of the weight of washings.
In addition, in present embodiment, when the washings that the inside that rinsing maching has cylinder 10 exists is wet cloth, detect the wet cloth weight detecting function of its weight.When this wet cloth weight detecting function carries out the detection of washing weight, the damping force of damper 23 is made to keep certain.Thus during wet cloth weight detecting, the restraint of the vibration of damper 23 pairs of tanks 6 does not also change, and is difficult to vibrate at tank 6.Thus cylinder 10 can stablize rotation, therefore, the detection of the washing weight (wet cloth weight) that wet cloth weight detecting function carries out also can accurately be carried out, and the control based on the detection of this washing weight also can accurately be carried out.
That is, rinsing maching according to the present embodiment, when carrying out the detection of the weight of washings (wet cloth), can well control, the damping force of the damper 23 making damping force variable does not make a very bad impression to the detection of the weight of washings.
And, in present embodiment, when above-mentioned 2 kinds of washing weight testings (washing weight of dry cloth detects and the washing weight of the cloth that wets detects), make the maintenance of the damping force of damper 23 certain and maximum.
Here, when the detection of the washing weight of dry cloth, washings is not limited to dry cloth, may add dry cloth in wet cloth (such as moisture many bath towels etc.).In addition, when the detection of the washing weight of wet cloth, washings is not limited to the wet cloth dewatered, and especially in the occasion etc. of only carrying out separately dry trip, may add the wet cloth (moisture wet cloth seldom) of dehydration at the wet cloth do not dewatered (moisture many wet cloth).When making cylinder 10 rotate in such a state, easily produce imbalance.
According to the present embodiment, detect arbitrary occasion of (washing weight of dry cloth detects and the washing weight of the cloth that wets detects) at above-mentioned 2 kinds of washing weights, all make the damping force of damper 23 certain and maximum.Therefore, when the detection of these washing weights, the vibration of the tank 6 that can effectively suppress above-mentioned imbalance to cause.Thus, the more stable rotation of cylinder 10 can be made, more accurately carry out the detection of washing weight.Thus, by present embodiment, the control of the detection based on washing weight also more accurately can be carried out.
[the 3rd embodiment]
Fig. 6 represents the control content in the 3rd embodiment.As aforementioned, in the rinsing maching of above-mentioned formation, according to the operation of guidance panel 4, after running starts, control unit and control device 5 are according to the sequential operation of cleaning stroke, dehydrating stroke, rinsing stroke, dehydrating stroke, dry trip.
As mentioned above, in cleaning stroke, control device 5 carries out weight detecting work (especially dry cloth weight detecting work) at first.
During this dry cloth weight detecting work, with the rotation of cylinder 10, tank 6 mainly vibrates along above-below direction.
Thus, control device 5, when this dry cloth weight detecting work, passes to the electric current of predetermined value (this occasion is 1 (A)), continues this "on" position to the two upper and lower coils 36,39 of damper 23.
Thus especially, between the high axle 25 of flux density and upper yoke 33 and between middle yoke 38 and axle 25, between lower yoke 41 and axle 25, the viscosity of magnetic viscosity fluid 52 improves, and frictional resistance increases.
Thus hydraulic cylinder 24 is with each parts (two especially upper and lower coils 36,39 and upper yoke 33, middle yoke 38 and lower yoke 41), and the frictional resistance when above-below direction vibrates increases.Therefore, damping force increases.Thus the restraint of the vibration of damper 23 pairs of tanks 6 does not change, be difficult to vibrate at tank 6, therefore, the detection of the washing weight that dry cloth weight detecting function carries out also can accurately be carried out.
Then, control device 5 carries out water supply work, then, carries out cleaning.During this cleaning, also with the rotation of cylinder 10, tank 6, mainly along above-below direction vibration, therefore in suspension 7, produces same movement and/or motion when working with dry cloth weight detecting in each portion.Therefore, now, control device 5 is also energized to the two upper and lower coils 36,39 of damper 23, and improve the viscosity of magnetic viscosity fluid 52, appropriateness increases the damping force of damper 23, suppresses the vibration of tank 6.
During rinsing work when Fig. 7 illustrates this cleaning with representing and then and dry work time the electrical current value of two upper and lower coils 36,39 of damper 23.This electrical current value is the value corresponding to the washing weight detected.That is, if the grade of the washing weight detected " many ", then the electrical current value of two coils 36,39 is set to 0.3 (A) by control device 5.If the washing weight detected " in " grade, then the electrical current value of two coils 36,39 is set to 0.4 (A) by control device 5.If the grade that the washing weight detected " lacks ", then the electrical current value of two coils 36,39 is set to 0.5 (A) by control device 5.That is, the washing weight detected is fewer, and the electrical current value of increase two coil 36,39 got over by control device 5.The damping force of damper 23 and the electrical current value of two coils 36,39 proportional.In essence, the washing weight detected is fewer, and control device 5 more increases the damping force of damper 23.
During rinsing work when Fig. 8 represents this cleaning and then and dry work time the washing weight detected and the relation of damping force of damper 23.Control device 5, according to the number of the washing weight detected, makes the damping force of damper 23 in this occasion in fact by linear change shown in this Fig. 8.Thus, the response accuracy of the change of damping force can be improved.
At the end of cleaning stroke, control device 5 carries out drainage works.In this drainage works, control device 5 stops (power-off) to the energising of the two upper and lower coils 36,39 of damper 23.Therefore, now, the viscosity of magnetic viscosity fluid 52 can not be improved by magnetic force.Thus the damping force of damper 23 recovers the size obtained by the natural viscosity of magnetic viscosity fluid 52.
Then the work in dehydrating stroke (this occasion is middle dehydrating stroke) in detail as shown in Figure 1.In addition, the dewatering work in this dehydrating stroke carries out with the time span corresponding to the washing weight detected.
During this dewatering work, also with the rotation of cylinder 10, tank 6 is mainly along above-below direction vibration (being namely that main body is vibrated with above-below direction).This occasion, the rotary speed of cylinder 10, than high during cleaning, therefore produces than movement large during cleaning and/or motion in each portion of suspension 7.Therefore, during this dewatering work, when the two upper and lower coils 36,39 of control device 5 pairs of dampers 23 are energized, to be energized than current value large during cleaning.Thus control device 5 improves the viscosity of magnetic viscosity fluid 52, increase the damping force of damper 23, suppress the vibration of tank 6.
The electrical current value of the two upper and lower coils 36,39 of the damper 23 when Fig. 9 illustrates this dewatering work with representing.The electrical current value of this occasion is also the value corresponding to the washing weight detected.That is, if the grade of the washing weight detected " many ", then the electrical current value of two coils 36,39 is set to 0.5 (A) by control device 5.If the washing weight detected " in " grade, then the electrical current value of two coils 36,39 is set to 0.8 (A) by control device 5.If the grade that the washing weight detected " lacks ", then the electrical current value of two coils 36,39 is set to 1.0 (A) by control device 5.That is, this occasion too, and control device 5 is when the washing weight detected is fewer, and the more electrical current value of increase two coil 36,39, when the washing weight detected is fewer, more increases the damping force of damper 23.
In addition, now, control device 5 also according to the washing weight that detects number, make the damping force of damper 23 actual in linear change shown in Fig. 8.Thus, improve the response accuracy of the change of damping force.
Thus, the initial stage of this dehydrating stroke is (when dehydrating stroke starts, before the rotary speed of cylinder 10 reaches such as 400 (rpm)), the two upper and lower coils 36,39 of damper 23 are carried out to the energising of the current value corresponding to the above-mentioned washing weight detected.In addition, Fig. 1 illustrates the example that the current value corresponding to the washing weight detected is the "on" position of 1 (A).Thus, to increase when the startup of dehydrating stroke that the resonance of tank 6 occurs the damping force of the damper 23 of the rotation of the cylinder 10 (reach such as 400 (rpm) before), avoid the generation of the resonance (resonance) of tank 6, improve the speed-raising performance of the rotation of cylinder 10.
In addition, now, as mentioned above, control device 5, in the uneven little state of rotation holding cylinder 10 more reliably at different levels, makes the rotary speed of cylinder 10 rise step by step simultaneously.
In addition, when the rotation imbalance of cylinder 10 detects, the two upper and lower coils 36,39 of control device 5 pairs of dampers 23 pass to the electric current of the current value (in an example be 1 (A)) corresponding to the washing weight detected and remain unchanged.Thus control device 5 makes the damping force of damper 23 large and certain.
In addition, when control device 5 stops the rotary actuation of cylinder 10 to make rotary speed drop to 0 subsequently, namely, when the rotary speed of cylinder 10 is by the speed territory that occurs the resonance of tank 6, the two upper and lower coils 36,39 of damper 23 are passed to again to the electric current of the current value (in an example be 1 (A)) corresponding to the washing weight detected.Thus control device 5, as shown in " damping force: large " of Fig. 1, increases the damping force of damper 23, avoids the generation of the resonance of tank 6.
Then, control device 5 carries out rinsing stroke.In this rinsing stroke, control device 5 also carries out the weight detecting work detecting the washing weight existed in cylinder 10 at first.Now, the washings existed in cylinder 10 is the state after cleaning stroke and dehydrating stroke, is therefore wet cloth.Thus this weight detecting work is the work of wet cloth weight detecting.
Wet cloth weight detecting work carries out identical content with the work of aforesaid dry cloth weight detecting.When this wet cloth weight detecting function carries out the detection of washing weight, control device 5 also to the identical current value of the two upper and lower dry cloth weight detecting work that coil 36,39 passes to dry cloth weight detecting function carries out of damper 23 (such as, 1 (A)) electric current, and continue this "on" position.
Then, control device 5 is opened by making feed water valve 58, carries out the water supply work of supplying water in tank 6, until reach and above-mentioned washing weight (wet cloth weight) the corresponding water level detected.Then, control device 5, with above-mentioned washing weight (wet cloth weight) the corresponding time span detected, mainly carries out the rinsing work of " knocking rinsing " by making cylinder 10 just alternately rotate against both direction with low speed to washings.In this rinsing stroke, stroke is same carries out for the energising of the two upper and lower coils 36,39 of control device 5 pairs of dampers 23 and cleaning.But the energising of two coils 36,39 now, according to the current value corresponding to the testing result of above-mentioned wet cloth weight detecting work, is undertaken by the content shown in Fig. 7 and Fig. 1.Then, control device 5 is opened by making draining valve 15, carries out the drainage works from tank 6 internal drainage.In this drainage works, control device 5 stops the energising of the two upper and lower coils 36,39 to damper 23.
Then the work in dehydrating stroke (final dewatering stroke) is same with above-mentioned dehydrating stroke (middle dehydrating stroke).But the energising of two coils 36,39 now, according to the current value corresponding to the testing result of above-mentioned wet cloth weight detecting work, is undertaken by the content shown in Fig. 9 and Fig. 1.
Then, control device 5 carries out dry trip.In this dry trip, control device 5 also carries out weight detecting work (especially wet cloth weight detecting work) at first.During this wet cloth weight detecting work, control device 5 also to the two upper and lower coils 36,39 of damper 23 pass to work with dry cloth weight detecting time identical current value (such as, 1 (A)) electric current, and this "on" position lasting.
Then, control device 5, with time span corresponding with the washing weight detected (wet cloth weight), rotates by making cylinder 10 and drying unit 17 is worked, carrying out the drying work making washings drying.Now, control device 5, according to the current value corresponding to the testing result of above-mentioned wet cloth weight detecting work, carries out the energising of the two upper and lower coils 36,39 to damper 23 by the content shown in Fig. 7 and Fig. 1.
According to the rinsing maching of present embodiment described above, support in the inner elastomeric of outer container 1 suspension 7 being built-in with the tank 6 of the cylinder 10 of rotary actuation, there is the damper 23 of the vibration attenuation making tank 6.This damper 23 is the dampers that damping force can be made to change.According to the testing result of the washing weight detecting unit of the washing weight of the inside existence of detection cylinder 10, the washing weight detected is fewer, makes the damping force of damper 23 larger.
Under the situation that the washing weight that the inside of cylinder 10 exists is few, when cylinder 10 rotates, washings is difficult to the inner peripheral portion being diffused into cylinder 10 by centrifugal force equably.Therefore, easily produce the bias of washings, easily produce imbalance, easily produce the large vibration of amplitude.In addition, on the contrary under the situation that the amount of the washings that the inside of cylinder 10 exists is many, washings is easily diffused into the inner peripheral portion of cylinder 10 equably by centrifugal force.Therefore, be difficult to the bias producing washings, be difficult to produce imbalance, be difficult to produce the large vibration of amplitude.
Rinsing maching according to the present embodiment, the washing weight detected is fewer, makes the damping force of damper 23 larger.By increasing the damping force of damper 23 like this, the vibration being delivered to tank 6 from cylinder 10 effectively can be suppressed.Thus, according to the washing weight detected, later cleaning, dewatering work, rinsing work, dewatering work and dry work can be carried out while reducing vibration respectively.Therefore, user can use rinsing maching easily.
And rinsing maching according to the present embodiment, carries out the testing of the washing weight of washing weight detecting unit execution when the washings that control device 5 exists in the inside of cylinder 10 is dry cloth.Washings is that dry cloth refers to the state of this washings before washing.Thus rinsing maching according to the present embodiment, can carry out the weight detecting of washings the initial stage before washings washing.Thus the control of the damping force of the damper 23 corresponding to the weight detecting result of this washings also can be carried out from washing the start time operated.Therefore, above-mentioned action effect can be obtained fast.
And rinsing maching according to the present embodiment, carries out the testing of the washing weight that washing weight detecting unit carries out when the washings that control device 5 also exists in the inside of cylinder 10 is wet cloth.The water imbibition of washings is different because of cloth matter.Therefore, compared with the washings that the washings that water imbibition is high is low with water imbibition, the weight of wet cloth is large.Therefore, the washings that water imbibition is high easily becomes unbalanced load when cylinder 10 rotates.Rinsing maching according to the present embodiment, carries out the testing of washing weight when the washings that control device 5 also exists in the inside of cylinder 10 is wet cloth.Therefore, can more high precision test water imbibition because of cloth matter the weight of different washings.Thus the control of the damping force of damper 23 that according to the testing result of washing weight and subsequently (after the weight detecting of washings) carries out also can high accuracy be carried out, and obtains above-mentioned action effect more reliably.
In addition, the detection (detection of the washing weight of wet cloth) of the washing weight when washings that the inside of cylinder 10 exists is wet cloth also can carrying out only at rinsing stroke at first.That is, the detection of the washing weight of wet cloth also can not carrying out at dry trip at first.
[the 4th embodiment]
Figure 10 relates to the 4th embodiment, illustrates the relation of the damping force of washing weight and the damper 23 detected.That is, this occasion, the change of the damping force of the damper 23 corresponding to the number of the washing weight detected is not the linear change shown in Fig. 8.In present embodiment, the change of the damping force of the damper 23 corresponding to the number of the washing weight detected as shown in Figure 10, according to the washing weight detected many, in, few grade, make respectively the damping force of damper 23 be changed to step by step little, in, large each grade.
According to the present embodiment, the data (storage data) that control device 5 stores can be simplified, suppress cost.
[the 5th embodiment]
Figure 11 represents the suspension 61 in the 5th embodiment.In this suspension 61, damper 62 has make no distinction of rank the coil 63 reeled at a shuttle 64.Damper 62 makes to arrange between upper yoke 33 in hydraulic cylinder 24 of these coils 63 and shuttle 64 and lower yoke 41 (bracket 44), and fixingly keeps.Thus the suspension 61 (damper 62) of present embodiment does not have above-mentioned middle yoke 38.
Even if such formation, control device 5, by controlling the energising to coil 63, also can make the damping force of damper 62 change, in addition, also can keep certain.
[other embodiments]
Rinsing maching described above is not limited to above-mentioned embodiment, can be suitable for changing enforcement in the scope not departing from main idea.Especially, as a modification, uneven detecting unit is not limited to aforesaid vibrating sensor 21,22, and control device 5, by calculating the q shaft current in the electric current flowing through motor 8, also can detect imbalance.
This occasion, the motor 8 that cylinder 10 is rotated is brushless DC motors.This brushless DC motor comprises the rotor 8a with permanet magnet and the stator 8b with coil (with reference to Fig. 2).The electric current flow through at motor 8, by carrying out general vector controlled, is divided into the flux produced relative to the S pole of the coil by stator, N pole to be the d shaft current of parallel direction (direction of rotation) and becomes the q shaft current of right angle orientation.Q shaft current value wherein depends on the load of motor 8.Thus, according to this q shaft current value, vibration (imbalance) can be detected.
In detail, by the deviation (such as, the difference of higher limit and lower limit) of the q shaft current value during calculating motor 8 and once rotating, vibration can be detected.Thus the deviation of the q shaft current value during control device 5 is once rotated by computing motor 8, can play the function of the uneven detecting unit replacing aforesaid vibrating sensor 21,22.
Although the description of several embodiment of the present invention, but these embodiments just illustrate, instead of limit scope of invention.These new embodiments can be implemented in every way, not departing from the scope of main idea of invention, can carry out various omission, displacement, change.These embodiments and distortion thereof are that scope of invention and main idea comprised, and are also that the invention of scope record and the scope of equalization thereof of claim comprises.
Claims (11)
1. a rinsing maching, is characterized in that, possesses:
Outer container;
Tank, it is positioned at the inside of above-mentioned outer container;
Swivelling chute, it is positioned at the inside of above-mentioned tank and is driven in rotation;
Suspension, it has makes the vibration attenuation of above-mentioned tank and the damper that damping force can be made to change, and supports above-mentioned tank in the inner elastomeric of above-mentioned outer container; And
Control unit, it is in predetermined testing, and the damping force carrying out controlling to make above-mentioned damper keeps certain,
Above-mentioned damper is configured to, and by possessing the magnetic viscosity fluid that viscous characteristics changes according to the magnetic field intensity applied from outside and the coil applying magnetic field to this magnetic viscosity fluid, damping force can be made to change.
2. rinsing maching according to claim 1, is characterized in that,
Possess uneven detecting unit, it detects imbalance when above-mentioned swivelling chute rotates,
Above-mentioned control unit, carries out in unbalanced detection at above-mentioned uneven detecting unit, and the damping force carrying out controlling to make above-mentioned damper keeps certain.
3. rinsing maching according to claim 1, is characterized in that,
Possess uneven detecting unit, it detects imbalance when above-mentioned swivelling chute rotates,
Above-mentioned control unit, carries out the control that the damping force of above-mentioned damper is changed under the situation that the rotary speed of above-mentioned swivelling chute is certain, and then, carries out control and makes above-mentioned uneven detecting unit carry out unbalanced detection.
4. rinsing maching according to claim 3, is characterized in that,
The control that above-mentioned control unit carries out making the damping force of above-mentioned damper to change with predetermined variable gradient.
5. rinsing maching according to claim 1, is characterized in that,
Possess washing weight detecting unit, the weight of the washings that its inside detecting above-mentioned swivelling chute exists,
Above-mentioned control unit, when above-mentioned washing weight detecting unit carries out the detection of washing weight, the damping force carrying out controlling to make above-mentioned damper keeps certain.
6. rinsing maching according to claim 5, is characterized in that,
The washings that the inside that above-mentioned washing weight detecting unit is included in above-mentioned swivelling chute exists detects the dry cloth weight sensing unit of its weight when being dry cloth,
Above-mentioned control unit, when above-mentioned dry cloth weight sensing unit carries out the detection of washing weight, the damping force carrying out controlling to make above-mentioned damper keeps certain.
7. rinsing maching according to claim 5, is characterized in that,
The washings that the inside that above-mentioned washing weight detecting unit is included in above-mentioned swivelling chute exists detects the wet cloth weight sensing unit of its weight when being wet cloth,
Above-mentioned control unit, when above-mentioned wet cloth weight sensing unit carries out the detection of washing weight, the damping force carrying out controlling to make above-mentioned damper keeps certain.
8. rinsing maching according to claim 5, is characterized in that,
Above-mentioned control unit, when above-mentioned washing weight detecting unit carries out the detection of washing weight, carries out controlling to make the damping force of above-mentioned damper keep maximum.
9. a rinsing maching, is characterized in that, possesses:
Outer container;
Tank, it is positioned at the inside of above-mentioned outer container;
Swivelling chute, it is positioned at the inside of above-mentioned tank and is driven in rotation;
Washing weight detecting unit, the weight of the washings that its inside detecting above-mentioned swivelling chute exists;
Suspension, it has makes the vibration attenuation of above-mentioned tank and the damper that damping force can be made to change, and supports above-mentioned tank in the inner elastomeric of above-mentioned outer container; And
Control unit, it is according to the testing result of above-mentioned washing weight detecting unit, and the damping force carrying out the washing weight that controls to make to detect more above-mentioned damper is larger,
Above-mentioned damper is configured to, and by possessing the magnetic viscosity fluid that viscous characteristics changes according to the magnetic field intensity applied from outside and the coil applying magnetic field to this magnetic viscosity fluid, damping force can be made to change.
10. rinsing maching according to claim 1, is characterized in that,
Possess drying unit, the washings that it makes the inside of above-mentioned swivelling chute exist is dry.
11. rinsing machings according to claim 9, is characterized in that,
Possess drying unit, the washings that it makes the inside of above-mentioned swivelling chute exist is dry.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010106359A JP5597439B2 (en) | 2010-05-06 | 2010-05-06 | Drum washing machine |
| JP106359/2010 | 2010-05-06 | ||
| JP2010117312A JP5489104B2 (en) | 2010-05-21 | 2010-05-21 | Drum washing machine |
| JP117312/2010 | 2010-05-21 | ||
| PCT/JP2011/052701 WO2011138878A1 (en) | 2010-05-06 | 2011-02-09 | Washing machine |
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| Publication Number | Publication Date |
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| CN102884237A CN102884237A (en) | 2013-01-16 |
| CN102884237B true CN102884237B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201180022691.XA Active CN102884237B (en) | 2010-05-06 | 2011-02-09 | Washing machine |
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| Country | Link |
|---|---|
| EP (1) | EP2568070A4 (en) |
| KR (1) | KR101516470B1 (en) |
| CN (1) | CN102884237B (en) |
| WO (1) | WO2011138878A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012210039A1 (en) * | 2012-01-31 | 2013-08-01 | Siemens Aktiengesellschaft | Control device, machine with rotor assembly and procedure for determining the tax code |
| CN104213367B (en) * | 2013-05-31 | 2017-04-19 | 无锡小天鹅股份有限公司 | Method for series excited motor roller washing machine to judge weight of clothes |
| CN104695170B (en) * | 2013-12-09 | 2017-08-29 | 海尔集团公司 | Damping washing machine and washing machine oscillation damping method |
| WO2016159539A1 (en) * | 2015-04-01 | 2016-10-06 | 삼성전자주식회사 | Washing machine and method for controlling washing machine |
| KR102439141B1 (en) | 2015-04-01 | 2022-09-02 | 삼성전자주식회사 | A washing apparatus and a method of controlling the same |
| EP3382084A1 (en) * | 2017-03-27 | 2018-10-03 | Vestel Elektronik Sanayi ve Ticaret A.S. | Determining an imbalance within a wash basket of a washing machine |
| CN106996005B (en) * | 2017-03-28 | 2022-08-16 | 青岛海尔洗涤电器有限公司 | Distributed dehydration control method for drum washing machine |
| CN109267295A (en) * | 2018-11-12 | 2019-01-25 | 张凯 | A kind of anti-offset washing machine |
| EP3987110A1 (en) * | 2019-06-21 | 2022-04-27 | Electrolux Appliances Aktiebolag | Laundry treating appliance |
| KR20240009282A (en) * | 2022-07-13 | 2024-01-22 | 삼성전자주식회사 | Washing machine and controlling method for the same |
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| JPH10323489A (en) * | 1997-05-15 | 1998-12-08 | Electrolux Zanushi Spa | Method for actively damping vibration generated by assembly for washing of washing machine and washing machine using the method |
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| JPH08309083A (en) * | 1995-05-18 | 1996-11-26 | Sanyo Electric Co Ltd | Drum type washing machine |
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- 2011-02-09 WO PCT/JP2011/052701 patent/WO2011138878A1/en active Application Filing
- 2011-02-09 EP EP11777397.8A patent/EP2568070A4/en not_active Withdrawn
- 2011-02-09 KR KR1020127030466A patent/KR101516470B1/en active IP Right Grant
- 2011-02-09 CN CN201180022691.XA patent/CN102884237B/en active Active
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| JPH0819687A (en) * | 1994-07-07 | 1996-01-23 | Hitachi Ltd | Vibration isolator for fully automatic washer |
| JPH10323489A (en) * | 1997-05-15 | 1998-12-08 | Electrolux Zanushi Spa | Method for actively damping vibration generated by assembly for washing of washing machine and washing machine using the method |
| JPH10328479A (en) * | 1997-05-21 | 1998-12-15 | Electrolux Zanushi Spa | Method for securing appropriate dynamic balance of assembly for washing of washing machine and washing machine using the method |
| JP2001276475A (en) * | 2000-04-03 | 2001-10-09 | Hitachi Ltd | Spin-drying/washing machine |
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| JP2009189539A (en) * | 2008-02-14 | 2009-08-27 | Panasonic Corp | Drum type washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101516470B1 (en) | 2015-05-04 |
| CN102884237A (en) | 2013-01-16 |
| EP2568070A4 (en) | 2018-01-10 |
| KR20130014058A (en) | 2013-02-06 |
| WO2011138878A1 (en) | 2011-11-10 |
| EP2568070A1 (en) | 2013-03-13 |
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Effective date of registration: 20160822 Address after: Tokyo, Japan Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Effective date of registration: 20160822 Address after: Tokyo, Japan Patentee after: Toshiba Corp. Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: Toshiba Home Appliances Holdings Corp. Patentee before: TOSHIBA HOME APPLIANCES Corp. |