CN102199851B - Washing machine - Google Patents
Washing machine Download PDFInfo
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- CN102199851B CN102199851B CN201110075183XA CN201110075183A CN102199851B CN 102199851 B CN102199851 B CN 102199851B CN 201110075183X A CN201110075183X A CN 201110075183XA CN 201110075183 A CN201110075183 A CN 201110075183A CN 102199851 B CN102199851 B CN 102199851B
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- Prior art keywords
- damper
- energising
- tank
- coil
- cylinder
- 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
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- 238000005406 washing Methods 0.000 title claims abstract description 111
- 239000012530 fluid Substances 0.000 claims abstract description 116
- 230000018044 dehydration Effects 0.000 claims abstract description 84
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 84
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 239000000725 suspension Substances 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims description 104
- 230000002441 reversible effect Effects 0.000 claims description 9
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 208000005156 Dehydration Diseases 0.000 description 81
- 238000012360 testing method Methods 0.000 description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 238000001035 drying Methods 0.000 description 26
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
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Images
Classifications
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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
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/10—Doors; Securing means therefor
-
- 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
-
- 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
- D06F37/28—Doors; Security means therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/30—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/312—Application of doors, windows, wings or fittings thereof for domestic appliances for washing machines or laundry dryers
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides a washing machine, wherein the conduction detection of a damper is performed without hindering the attenuation force control of the damper. Meanwhile, the conduction detection of the damper is maintained to be constant regardless of the environment temperature. The suspension of an elastic support rotating groove is equipped with a damper for attenuating the vibration of a basin. The damp adopts a functional fluid and the viscosity of the functional fluid is changeable along with the applied power implemented by the energization of a coil. At a timing when the attenuation force of the damper is not changed, the conduction detection of the damper is performed, which will not hinder the attenuation force control of the damper. The energization of the coil is executed before the dehydration stroke (washing stroke), so that the viscosity of a magnetic viscous fluid and the hardness of a sealing member for preventing the leakage of the magnetic viscous fluid during the dehydration stroke at a low temperature are reduced. Therefore, the frictional force for shafts becomes moderate.
Description
Technical field
The present invention relates to be applied to the drum-type of function of use property fluid in the damper of the vibration that absorbs tank or the rinsing maching that longitudinal type automatically waits rinsing maching.
Background technology
As first background technology, all the time, in various rinsing machings, wherein also comprise drum-type washing machine, tank is positioned at the inside of outer container, is positioned at the inside of this tank as the cylinder of swivelling chute, and this cylinder is driven by the outer motor rotation of tank.
In addition, tank is provided with by suspension resiliency supported ground on the base plate of outer container, has at this suspension to make the vibration of following cylinder and the damper of the vibration attenuation of the tank that produces.
With regard to this damper, use the constant type of damping force usually, but also consider to use the variable type of damping force in recent years, and consider that function of use property fluid is as working fluid.
Called function property fluid; It is the fluid that the character function property ground of rheology (rheology) aspect of viscosity etc. is changed through the physical quantity that applies from the outside of control; Comprise magnetic viscous fluid (MR fluid, Magnetorheological Fluid, magneto-rheological fluid) and electric viscous fluid (ER fluid as the fluid that viscosity is changed; Electrorheological Fluid, ERF).
Wherein, The magnetic viscous fluid is the fluid that for example in oil, is dispersed with the ferromagnetism particulate of iron, carbonyl (carbonyl) iron etc., if be applied in magnetic field; Then the ferromagnetism particulate forms bunch (cluster) of chain; Viscosity rises thus, if be applied in electric field, and the viscosity of electric viscous fluid can rise (reference example such as patent documentation 1,2) then.
In addition; As second background technology, all the time, in drum-type washing machine; On the base plate of outer container, support the suspension of tank, have the damper of the vibration attenuation of the vibration that makes the swivelling chute (below be called cylinder) that places washings and rotation in the inside of tank and even tank.With regard to this damper, the known type (reference example such as patent documentation 3,4) of working fluid being used the magnetic viscous fluid (MR fluid) that viscosity changes according to the intensity in magnetic field.
Here, Figure 19 is the figure of an example of this damper of expression, as main element, has cylinder body 201 and axle 202.Wherein, cylinder body 201 is installed on tank (omitting diagram) through the attaching parts 203 that are arranged at the upper end, and the axle 202 connecting portion 202a through the bottom are installed on the set installing plate of the base plate of outer container (omitting diagram).
In the inner core 201b of cylinder body 201, be filled with magnetic viscous fluid 208.This magnetic viscous fluid 208 is the fluids that for example in oil, are dispersed with the ferromagnetism particulate of iron, carbonyl iron etc., if be applied in magnetic field, then the ferromagnetism particulate can form chain bunch, apparent viscosity rises thus.
In the inner core 201b of cylinder body 201, also placed piston valve 209.This piston valve 209 is members of short cylinder shape, is arranged at the upper end of said axle 202, and the outer peripheral face that is configured to piston valve 209 can reciprocatingly slide relatively at the inner peripheral surface of inner core 201b (axially).
In addition, be formed with a plurality of throttle orifices (orifice) 210 of axial perforation, and be equipped with the coil 211 that is used to produce above-mentioned magnetic field at the outer circumferential side of this piston valve 209.
Be used for the lead-in wire 212 to coil 211 energisings, the hole 213 that forms with the mode by axial perforation through the central part at axle 2 is connected in outside drive circuit (omitting diagram).In addition, the hole 213 of axle 202 is sealed by seal 214 in the upper end of axle 202 tightly.
The ratio of axle 202 adheres to the part that the below is leaned in the upper end that is fixed with above-mentioned piston valve 209, connects said inner core sleeve 207, urceolus sleeve 206 and the seal 215 of cylinder body 201, is projected into the below outside the cylinder body 201, has constituted damper 216 like this.
In addition, adhere in the bottom of axle 202 and to be fixed with spring fastening 217, disc spring 218 between this spring fastening 217 and said urceolus sleeve 206, has constituted the suspension 219 of resiliency supported tank elastically like this.
In above-mentioned suspension 219, if tank vibrates along the vertical direction, then the cylinder body 201 of damper 216 also is accompanied by the flexible of disc spring 218 integratedly with tank and moves back and forth down in the axial direction.
At this moment; Owing to relatively move back and forth up and down in the magnetic viscous fluid 208 of piston valve 209 in cylinder body 201; So magnetic viscous fluid 208 passes through in the throttle orifice 210 of piston valve 209; Because the viscosity of the magnetic viscous fluid 208 of this moment produces damping force at suspension 219, makes the amplitude fading of tank.
The damping force D that produces is as stated generally represented by following (1) formula.
Damping force D=entrance loss+friction loss+dynamic pressure resistance (1)
In addition; So-called entrance loss is meant the pressure loss that when magnetic viscous fluid 208 flows into the throttle orifice 210 of piston valve 209, is produced; Friction loss is meant by the pressure loss that pipe friction produced of magnetic viscous fluid 208 through in the throttle orifice 210 time, and the dynamic pressure resistance is meant that not carrying out pressure at piston valve 209 back sides by the dynamic pressure of magnetic viscous fluid 208 recovers the pressure loss that produced.
Here, if through coil 211 energisings are applied magnetic field to magnetic viscous fluid 208, then the apparent viscosity of magnetic viscous fluid 208 rises.Thus, the friction loss when magnetic viscous fluid 208 passes through in the throttle orifice 210 increases, so damping force D change is big, can reduce the vibration of tank.
Patent documentation 1: the spy opens the 2008-183297 communique
Patent documentation 2: the spy opens flat 10-323489 communique
Patent documentation 3: special table 2002-502942 communique
Patent documentation 4: the spy opens the 2005-291284 communique
Drum-type and the longitudinal type put down in writing in the first above-mentioned background technology automatically wait rinsing maching, and generally in rinsing maching, when the dehydration stroke, swivelling chute (cylinder) can accompany with it owing to the lateral deviation of washings is vibrated sometimes, and tank also can vibrate.At this moment, if it is big tank to be carried out the damping force of damper of suspension of resiliency supported, then the vibration meeting of tank is delivered to outer container via damper.
In addition, the damper of function of use property fluid can make damping force change through the viscosity change of functional fluid; Thus; Till the rotary speed of the resonance that reaches the tank when the starting of dehydration stroke occurring, increase damping force, the acceleration that makes the dehydration rotation of the resonance through avoiding tank is improved; During the dehydration stroke after this stable (rotation at a high speed); Reduce damping force, can avoid the transfer of vibration of tank to arrive outer container, and then can avoid the ground of this transfer of vibration to the room that rinsing maching is set.
But, functional fluid, as previously mentioned, because applying its viscosity and can changing of electric energy must be switched on to damper reliably.With respect to this, under the lead-in wire disconnection of carrying out this energising etc. can not the situation to the damper energising, can not obtain above-mentioned expected effect.
With respect to this,, bring obstruction will for the control of the damping force of damper though, cause the damping force of damper also to change if carry out this detection at a venture as long as can detect damper could switch on.
On the other hand, in the damper 216 of the above-mentioned formation that second background technology is put down in writing, can adjust damping force D to the energising of coil 211 through increase and decrease; Thus, till the rotary speed of the resonance of the tank when reaching the starting of appearance dehydration stroke, increase damping force D; Avoid the generation of the resonance of tank, when dehydration stroke is after this stablized, reduce damping force D; Can avoid the transfer of vibration of tank to arrive outer container, and then can avoid the ground of this transfer of vibration to the room that is provided with rinsing maching.
But in the environment for use of rinsing maching, temperature is different because of season, region, the moment etc., and under the temperature that has nothing in common with each other like this, the viscosity of magnetic viscous fluid 8 changes, and the hardness of this outside seal may 15 also changes.Especially when low temperature, the viscosity increased of magnetic viscous fluid 8, the damping force D of damper 16 increases.Seal 15 hardness when low temperature also increases, and the frictional force of the axle 2 of 15 pairs of institutes of sealing part crimping also increases thus, so the damping force D of damper 16 increases.
Promptly; In the existing technology that second background technology is put down in writing; The damping force D of damper 16 changes because of the temperature of the environment for use of rinsing maching; Especially its damping force D increases when low temperature, possibly occur obtaining stable fade performance etc., the control of the damping force of damper is brought the unfavorable condition of obstruction.
Summary of the invention
Therefore, first invention of the present invention is accomplished in view of the problem of above-mentioned first background technology, and its purpose is to provide the rinsing maching that can be does not bring the energising that hinders ground to carry out damper to detect to the control of the damping force of damper.
In addition; Second invention of the present invention is accomplished in view of the problem of above-mentioned second background technology, its purpose be to provide obtain no matter how the temperature of environment for use can both make damping force certainization of damper stable fade performance, can be not to the control of the damping force of damper bring hinder the rinsing maching of execution.
In order to reach above-mentioned purpose, the rinsing maching of first invention of the present invention is characterized in that possessing: outer container; Be configured in the tank of the inside of this outer container; Be configured in the inside of this tank and the swivelling chute that is driven in rotation; Support said tank with inner elastomeric and have the suspension of damper of the vibration of the said tank of decay at said outer container; Said damper uses the apply functional fluid that change of viscosity owing to the electric energy of being realized through energising; Damping force is changed; Timing beyond when the damping force that makes said damper changes, the energising of implementing this damper detects.
In addition, in order to reach above-mentioned purpose, in the rinsing maching of second invention of the present invention, the damper of the vibration of the tank that having decays places swivelling chute, this rinsing maching is characterised in that said damper comprises: cylinder body; Be maintained at the inside of said cylinder body and through being energized the coil that produces magnetic field; Can relatively carry out axially reciprocatingly connecting this coil and supported axle; Be filled between this and the said coil and near magnetic viscous fluid; With the seal of the leakage of restraining this magnetic viscous fluid, before the dehydration stroke, carry out energising to said coil.
According to first invention of the invention described above, the timing beyond the moment that the damping force that makes damper changes, the energising of implementing this damper detects, and does not hinder ground to carry out energising to detect so can be not the control of the damping force of damper be brought.
In addition; According to second invention of the present invention; Through before the dehydration stroke, beginning to carry out energising to coil, especially lower the viscosity of the magnetic viscous fluid in the dehydration stroke when low temperature and the hardness of seal, can make frictional force become appropriate for axle; So, can access stable fade performance no matter how the temperature of environment for use can both make the damping force of damper necessarily change.
Description of drawings
Fig. 1 is the figure of control content in first embodiment of expression first invention of the present invention.
Fig. 2 is the vertical profile side view of the whole biopsy cavity marker devices of the rinsing maching of first embodiment of first invention of the present invention.
Fig. 3 is the vertical profile side view of suspension monomer of first embodiment of first invention of the present invention.
Fig. 4 is the entire block diagram that the electricity of first embodiment of first invention of the present invention constitutes.
Fig. 5 is the wiring diagram of current control circuit of first embodiment of first invention of the present invention.
Fig. 6 is the flow chart of control content of a part of first embodiment of first invention of the present invention.
Fig. 7 is the figure of control content in second embodiment of expression first invention of the present invention.
Fig. 8 is the figure that is equivalent to Fig. 6 of the 3rd embodiment of expression first invention of the present invention.
Fig. 9 is the figure of control content in the 4th embodiment of first invention of the present invention.
Figure 10 is the time diagram of first embodiment of expression second invention of the present invention.
Figure 11 is the vertical profile side view of the whole biopsy cavity marker devices of the drum-type washing drying machine of first embodiment of second invention of the present invention.
Figure 12 is the longitudinal section of suspension monomer of damper that comprises first embodiment of second invention of the present invention.
Figure 13 is the block diagram that the electricity of first embodiment of expression second invention of the present invention constitutes.
Figure 14 is the flow chart of second embodiment of expression second invention of the present invention.
Figure 15 is the flow chart of the 3rd embodiment of expression second invention of the present invention.
Figure 16 is the flow chart of the 4th embodiment of expression second invention of the present invention.
Figure 17 is the time dependent figure of the drum rotation speed in the dehydration stroke of the 4th embodiment of second invention of the present invention.
Figure 18 is the figure that is equivalent to Figure 12 of the 5th embodiment of expression second invention of the present invention.
Figure 19 is the figure that is equivalent to Figure 12 of the existing example of expression.
Symbol description
1 outer container, 6 tank 7a, 7b suspension 10 cylinders (swivelling chute)
21 dampers, 51 magnetic viscous fluids (functional fluid), 226 tanks
243 of 230 cylinders (swivelling chute), 241 dampers, 242 cylinder bodies
254 coil 254a go up coil 254b lower coil 257 seals
263 magnetic viscous fluids, 271 dampers, 277～280 seals
The specific embodiment
Below, referring to figs. 1 through Fig. 6 first embodiment of first invention of the present invention is described.
At first, in Fig. 2, represented first invention of the present invention is applied to the overall structure of the rinsing maching of drum-type washing machine, outer container 1 is as shell.
This outer container 1 is rectangular-shaped, is formed with washings gateway 2 in the substantial middle portion of its front face (in Fig. 2 for right side), and the door 3 that opens and closes this washings gateway 2 is arranged at outer container 1 by axle with supporting.
In addition, be provided with guidance panel 4 in the front upper of outer container 1, (in the outer container 1) is provided with the control device 5 of operation control usefulness in its inboard.
Be equipped with tank 6 in the inside of outer container 1.It is axially cylindric for the horizontal axis of front and back (in Fig. 2, being a right left side) that this tank 6 is, and this tank 6 is the state that the front side tilts up through pairing left and right suspension 7a, the 7b (in Fig. 2, only illustrating a side suspension 7b) that on the base plate 1a of outer container 1, is provided with by resiliency supported.The detailed structure of suspension 7a, 7b with after state.
At the back of tank 6 motor 8 is installed.This motor 8 comprises for example DC Brushless Motor, is outer rotor shape, and the rotating shaft (omitting diagram) that is installed on the central part of rotor 8a is via 9 slotting leading in the inside of tank 6 of bearing cap.
Be equipped with the cylinder 10 that forms swivelling chute in the inside of tank 6.It is axially cylindric for the horizontal axis of front and back that this cylinder 10 also is, make the leading section of the rotating shaft of above-mentioned motor 8 run through cylinder 10 the rear portion central part and install, thereby it is supported to and tank 6 state that tilts up of front side with one heart.
Consequently, make cylinder 10 rotations through motor 8, therefore, cylinder 10 is swivelling chutes, and motor 8 plays a role as the swivelling chute drive unit that makes cylinder 10 rotations.
Spread all over whole zone at all sidepieces (trunk portion) of cylinder 10 and be formed with a plurality of apertures 11.In addition, cylinder 10 and the tank 6 all mask in the front side have peristome 12,13, and be wherein continuous by the bellows 14 of ring-type between the peristome 13 of tank 6 and the above-mentioned washings gateway 2.
Thus, washings gateway 2 is via the peristome 12 of the peristome 13 of bellows 14, tank 6 and cylinder 10 and be communicated in the inside of cylinder 10.
Rear portion as the bottom of the foot of tank 6 is connected with drainpipe 16 via draining valve 15.In addition, upwards follow forward, be equipped with drying unit 17 from the back of tank 6.
This drying unit 17 has dehumidifier 18, pressure fan 19 and heater 20, and execution is to the attraction of the air in the cylinder 10 and dehumidify, then heat and make air return the circulation in the cylinder 10, thereby makes the washings drying.
The detailed structure of suspension 7a, 7b is described here. Suspension 7a, 7b have damper 21, and this damper 21 is as shown in Figure 3, as critical piece, have the cylinder body 22 that comprises magnetic material and comprise equally magnetic material the axle 23.
Wherein, Cylinder body 22 has attaching parts 24 in the bottom; As shown in Figure 2, these attaching parts 24 are passed the installing plate 25 that the base plate 1a of said outer container 1 had downwards and clip bolster 26 usefulness nuts 27 be fastenedly connected from the top, thereby it is installed on the base plate 1a of outer container 1.
With respect to this, axle 23 has connecting portion 23a in the upper end, and is as shown in Figure 2 equally, this connecting portion 23a passed the installing plate 28 that is arranged at said tank 6 and clips bolster 29 usefulness nuts 30 from the lower direction top be fastenedly connected, thereby it is installed on tank 6.
As shown in Figure 3, the topmost in the inside of cylinder body 22, the upper magnet yoke 34 of the upper bearing (metal) 32 of drag ring 31, ring-type, the seal 33 of lip shape and ring-type inserts and the maintenance that is fixed to place in the state of the interior perimembranous of the carriage 35 of short cylinder shape.
Wherein, drag ring 31 comprises for example polyurethane, and upper bearing (metal) 32 comprises for example oil-impregnated sintered metal, and upper magnet yoke 34 comprises magnetic material with carriage 35.
Position below upper magnet yoke 34 in cylinder body 22 and carriage 35 are tight, the state that is installed on upper bobbin 37 with coiling inserts and fixedly maintains coil 36.
In addition, the position below the upper bobbin 37 in cylinder body 22 tight is pressed into and is fixed with the middle yoke 38 of ring-type.Middle yoke 38 comprises magnetic material.
And, the position below the middle yoke 38 in cylinder body 22 tight, the state that is installed on lower lower 40 with coiling inserts and fixedly maintains lower coil 39.And the position below the lower lower 40 in cylinder body 22 tight is pressed into and is fixed with lower yoke 41.
This lower yoke 41 comprises magnetic material, forms the short cylinder shape that has space 42 at the downside of interior perimembranous, places and fixedly maintain the seal 43 of lip shape and the lower bearing 44 of ring-type in this space 42.And lower bearing 44 comprises for example oil-impregnated sintered metal.
And; Between carriage 35 and upper bobbin 37, be provided with seal 45; Between upper bobbin 37 and middle yoke 38, be provided with seal 46, between middle yoke 38 and lower lower 40, be provided with seal 47, between lower lower 40 and lower yoke 41, be provided with seal 48 in addition.
These seals 45～48 for example comprise O shape ring.
Make axle 23; Begin from the 22a of open upper end portion of cylinder body 22; Connect drag ring 31, upper bearing (metal) 32, seal 33, upper magnet yoke 34, upper bobbin 37, middle yoke 38, lower lower 40, lower yoke 41, seal 43 and lower bearing 44 in order, be inserted in the inside of cylinder body 22.
The axle 23 that this has inserted; The limit is supported by upper bearing (metal) 32 and lower bearing 44; Axial moving back and forth can relatively be carried out with respect to drag ring 31, upper bearing (metal) 32, seal 33, upper magnet yoke 34, upper bobbin 37, middle yoke 38, lower lower 40, lower yoke 41, seal 43 and lower bearing 44 in the limit.
In addition, the lower part of the lower yoke 41 of cylinder body 22 becomes cavity 49, and axle 23 bottom arrives should cavity 49, is prevented to come off by back-up ring 50.
And; The axle 23 that has inserted and upper bobbin 37 and lower lower 40 separately between and respectively near them promptly spools 23 and upper magnet yoke 34, middle yoke 38 and lower yoke 41 separately between; Being filled with functional fluid, is magnetic viscous fluid (MR fluid) 51 under these circumstances.
Called function property fluid; Be the fluid that the character function property ground of the rheology aspect of viscosity etc. is changed through the physical quantity that applies from the outside of control as stated, comprise as since applying of electric energy make the viscosity variation fluid magnetic viscous fluid 51 and do not have illustrated electric viscous fluid.
In this embodiment, the magnetic viscous fluid 51 that uses viscous characteristics to change, but the electric viscous fluid (ER fluid) that also can use viscous characteristics to change according to the intensity of electric field according to the intensity in magnetic field.
Magnetic viscous fluid 51; Also as stated; It for example is the fluid that in oil, is dispersed with the ferromagnetism particulate of iron, carbonyl iron etc.; If were applied in magnetic field the ferromagnetism particulate form chain bunch, viscosity is risen, said seal 33, seal 45～48 and seal 43 have restrains the function that this magnetic viscous fluid 51 leaks.
Constituted damper 21 like this, the top of the axle 23 above the outside of the cylinder body that is arranged in damper 21 22, the chimeric spring fastening 52 that is fixed with is equipped with the disc spring 53 that comprises around the compression disc spring of axle 23 between the upper end of this spring fastening 52 and cylinder body 22.
So, constitute suspension 7a, 7b, and this suspension 7a, 7b are assembled between the base plate 1a of said tank 6 and said outer container 1 resiliency supported tank 6 on the base plate 1a of outer container 1.
In Fig. 4, illustrating with control device 5 with block diagram is the electricity formation at center.Control device 5 comprises for example microcomputer; As as after state the controlling organization of overall operation of index drum formula rinsing maching play a role the various operation signals of 54 pairs of these control device of the operating portion that comprises various console switch, 5 inputs that had from guidance panel 4.
In addition, 55 pairs of control device of level sensor, 5 input water level detecting signals also from being provided with in order to detect the water levels in the tank 6, and from the turn-sensitive device 56 of the rotation that detects motor 8 to its input rotation detection signal.
And, also it is imported the energising detection signal from the energising testing circuit 57 that the energising of two coils 36,39 up and down each damper 21 of suspension 7a, 7b is detected.
And; Control device 5; Based on said various inputs and the control program of storing in advance; Drive circuit 59 is supplied with drive control signal, and this drive circuit 59 drives thermal source (heater) 20a (with reference to identical figure) for the heater 20 in feed water valve 58, motor 8, the draining valve 15 that is provided with, the motor 19b (with reference to identical figure) that drives the wind feeding blades 19a (with reference to Fig. 2) of the pressure fan 19 in the drying unit 17, this drying unit 17 to supplying water in the tank 6.
And, supply with electric current via two coils 36,39 up and down in each damper 21 of 60 couples of suspension 7a of current supply circuit, 7b.
Fig. 5 representes to comprise the current control circuit 61 of energising testing circuit 57 and current supply circuit 60; For this current control circuit 61; Two coils 36,39 up and down in each damper 21 of suspension 7a, 7b are connected in series respectively; Two coils 36,39 also are connected in parallel in suspension 7a, 7b up and down, are connected in current control circuit 61 via connector 62.
So, in current control circuit 61,, make transistor 63 conductings through from 5 pairs of transistors of control device 63 input High signals, accept this Continuity signal and make the base stage of transistor 64 become Low, make transistor 64 conductings.
So the one-sided 15V that becomes of resistance 65 acts on the grid of FET67, FET67 conducting by resistance 65 and resistance 66 voltage after partial.
If the FET67 conducting then applies the voltage of 36V respectively to two coils 36,39 up and down in each damper 21 of suspension 7a, 7b, electric current is passed to GND (the earth) via FET67 and current sense resistor 68.
At this moment; In current sense resistor 68, flow through the electric current of the corresponding value of resistance value of each resistance value and the current sense resistor 68 of two coils 36,39 up and down in each damper 21 with suspension 7a, 7b, so take place and this current value correspondent voltage reduction at current sense resistor 68.
The low pass filter of this voltage through being made up of resistance 69 and capacitor 70 read in by the A/D terminal of control device 5, and according to resistance value and this voltage value, two coils 36,39 up and down that detect in each damper 21 of suspension 7a, 7b are normally switched on.
Current control circuit 61 comprises like this: as detecting the energising testing circuit 57 that could play a role to the energising testing agency of two coils, 36,39 energisings about each.
When carrying out above-mentioned energising and detecting to each energising of two coils 36,39 up and down; Carry out from the input of 5 pairs of transistors 63 of control device through carrying out continuously; But under to the situation of carrying out duty control from the input of 5 pairs of transistors 63 of this control device, about each, flow through electric current in two coils 36,39 with its dutycycle corresponding average.
, can carry out carry out duty control from the input of 5 pairs of transistors 63 of control device through like this each control of the electrical current of two coils 36,39 up and down.
Like this, current control circuit 61 comprises the current supply circuit 60 that plays a role as the administration of power supply that two coils 36,39 about each are supplied with electric currents.And at this moment, value of current flowing also correspondingly changes with it in current sense resistor 68, so carry out the mean value processing of electrical current through control device 5, also can carry out the detection of energising amount.
Next, the effect of the rinsing maching of above-mentioned formation is described.In general, have " washing (cleaning) stroke ", " rinsing (comprising dehydration) stroke " and " dry trip " etc. in the operation stroke of drum-type washing machine.
Before the operation of beginning rinsing maching, if power connection (ON) is then as shown in Figure 1, by the energising detection of two coils 36,39 up and down in each damper 21 of energising testing circuit 57 execution suspension 7a, 7b.
The step S1 of Fig. 6～S4, expression each step at this moment behind power connection (step S1), is carried out energising and is detected (step S2), its result, the judgement (step S3) of carrying out whether the energising amount is 0A, promptly whether switching on.
If it is 0A, i.e. not energising (step S3 " being ") that its result is judged as the energising amount, then stop each energising of two coils 36,39 up and down, and other operation also stops, and carry out mistake demonstration (step S4).
If in step S3, be judged as the energising amount is not 0A, i.e. energising (step S3 " denying "), then based on the operation that begins of operation, gets into " washing " stroke, carries out each energising (step S5) of two coils 36,39 up and down.The energising to two coils 36,39 about each of this moment is carried out via current supply circuit 60, when this energising, also carries out the detection of energising amount.
In addition, at this moment, also carry out the washings amount testing of the amount that detects the washings (dry) that in cylinder 10, is placed.This washings amount testing; According to make cylinder 10 rotation up to predetermined rotary speed, the driving that reaches needed time till the predetermined rotary speed and stop cylinder 10 afterwards make the rotation of cylinder 10 inertia, needed time till the rotary speed of cylinder 10 is reduced to predetermined rotary speed thus, detect the amount of washings through the rotary load of motor 8.
When this washings amount testing, follow the rotation of cylinder 10, tank 6 mainly vibrates on above-below direction.Up-down vibration corresponding to this tank 6; In suspension 7a, 7b; Be installed on the axle 23 of tank 6; The limit makes disc spring 53 flexible, and the limit connects drag ring 31, upper bearing (metal) 32, seal 33, upper magnet yoke 34, upper bobbin 37, middle yoke 38, lower lower 40, lower yoke 41, seal 43 and lower bearing 44, moves back and forth on above-below direction in the inside of cylinder body 23.
When above-mentioned each parts of axle 23 such perforations move back and forth on above-below direction; Between each of axle 23 and upper bobbin 37 and lower lower 40 and near the magnetic viscous fluid 51 of promptly being filled between each of axle 23 and upper magnet yoke 34, middle yoke 38 and lower yoke 41 them; Utilize because the frictional resistance that its viscosity produced applies damping force to suspension 7a, 7b, make the amplitude fading of tank 6.
So when this washings amount testing, therefore 36,39 energisings of two coils up and down via 60 pairs of dampers 21 of current supply circuit, by coil 36,39 generation magnetic fields, apply magnetic field to magnetic viscous fluid 51, the viscosity of magnetic viscous fluid 51 raises.
In detail; Because coil 36,39 has been switched on; So produce the magnetic circuit of the middle yoke 38-of axle 23-magnetic viscous fluid 51-upper magnet yoke 34-carriage 35-cylinder body 22-magnetic viscous fluid 51-axle 23; And produce the magnetic circuit of the middle yoke 38-of axle 23-magnetic viscous fluid 51-cylinder body 22-lower yoke 41-magnetic viscous fluid 51-axle 23, the viscosity of the magnetic viscous fluid 51 of the position that each magnetic flux passed through raises.
Especially between magnetic density the is high axle 23 and upper magnet yoke 34, between middle yoke 38 and the axle 23 and the viscosity of lower yoke 41 and each the magnetic viscous fluid 51 of axle between 23 raise, frictional resistance increases.
Like this, cylinder body 22 follows each parts, the frictional resistance when two coils 36,39 and upper magnet yoke 34, middle yoke 38 and lower yoke 41 vibrates on above-below direction especially up and down to increase, thereby make the damping force increase.
Thus, can suppress tank 6 and vibrate, so also can correctly carry out the detection of washings amount.
In addition, at this moment,, make each flow through the electric current of many slightly for example 1A up and down in two coils 36,39, the damping force of damper 21 is increased for the vibration that makes tank 6 is difficult to take place more.
And, if the testing of washings amount finishes, then stop the driving of cylinder 10, also stop each energising (end of step S5) of two coils 36,39 up and down.
Afterwards, execution and the demonstration of the corresponding operation required time of testing result of the amount of washings and the demonstration of the detergent amount of necessity wait for that under this state the scheduled time is with wait washing agent input (step S6).
During waiting for that washing agent drops into, whether the rotary speed of cylinder 10 is 0rpm, is whether cylinder 10 stops the rotation and judge (step S7).
If judging cylinder 10 is 0rpm, promptly stopped (step S7 " being "), then carry out each energising detection (step S8) of two coils 36,39 up and down by energising testing circuit 57.
And; On its basis; To each up and down the energising amount of two coils 36,39 whether be 0A, promptly whether switch on and judge (step S9), be 0A, i.e. not energising (step S9 " being ") if judge, then stop each energising of two coils 36,39 up and down; And also stop other operation, then carry out mistake and show (step S10).
In step S9, if being judged as the energising amount is not 0A, promptly switch on (" denying "), then then make feed water valve 58 open, carry out to supply water in the tank 6 until with the corresponding water level of the testing result of washings amount till water supply work (step S11).
When this water supply work,, do not carry out detection (with reference to Fig. 1) by the performed energising of energising testing circuit 57 not via each two coils, 36,39 energising up and down of 60 pairs of current supply circuits yet.
After water supply work, carry out the washing work (step S12) that makes cylinder 10 alternately rotate, mainly washings impacted washing to positive and negative two directions with low speed.Top step S5～S11 is also as shown in Figure 1.
When washing work, (being 2 times in the illustrative example) improved the rotary speed of cylinder 10 halfway several times, thereby makes washings soak into washings better, improves clean result.
At this moment, via 36,39 energisings of two coils up and down of 60 pairs of dampers 21 of current supply circuit,, this also carries out the detection of energising amount when respectively switching on.
Thus, with likewise above-mentioned, by coil 36,39 generation magnetic fields, magnetic viscous fluid 51 is applied magnetic field, the viscosity of magnetic viscous fluid 51 improves, so the damping force of damper 21 increases, can suppress because of improving the vibration of the tank 6 that rotary speed causes.
But, the rotary speed of cylinder 10 of this moment, than after low during dehydration work in " rinsing " stroke of stating, at each electric current that flows through big slightly for example 0.5A up and down in two coils 36,39, the damping force of damper 21 is moderately increased.
In addition; In addition, do not carry out via 60 pairs of each energisings of two coils 36,39 up and down of current supply circuit (damping force of damper 21 is increased), even but under these circumstances; Damper 21 also has the damping force that the natural viscosity because of magnetic viscous fluid 51 obtains; And, also can obtain because of the damping force that friction produced between drag ring 31 and the axle 23, so tank 6 can not become unusual vibrational state.
After the work of " washing " stroke, carry out " rinsing " stroke, make draining valve 15 open, carry out drainage works from tank 6 internal drainages.
In this drainage works, do not carry out via each energising of two coils 36,39 up and down of 60 pairs of current supply circuits, and carry out undertaken by energising testing circuit 57 each up and down the energising of two coils 36,39 detect.
Whether its result with likewise above-mentioned, judges switching on, if be judged as not energising, then stops each energising of two coils 36,39 up and down, and also stops other operation, and carry out mistake demonstration.
After dehydration (middle dehydration) work in, make cylinder 10 rotations, its rotary speed is improved gradually, the water that will residue in the washings through centrifugal force throws away and discharges.
In this process; The rotating range (tachometer with cylinder 10 is shown the for example stage of 0～400rpm usually) of resonance occurs and the rotating range (tachometer with cylinder 10 is shown the for example speed stage of 400～0rpm) that resonates appears in the tank 6 in the process that speed lowers gradually of making the rotation of cylinder 10 reaches maximum speed after at tank 6, switch on via two coils 36,39 up and down of 60 pairs of dampers 21 of current supply circuit respectively., this also carries out the detection of energising amount when respectively switching on.
Thus, by two coils, 36,39 generation magnetic fields up and down, magnetic viscous fluid 51 is applied magnetic field, the viscosity of magnetic viscous fluid 51 improves, so the damping force of damper 21 increases.
In addition, under these circumstances, the rotary speed of cylinder 10 is high during than said washing work, so big action and/or effect when the each several part of 6 couples of suspension 7a of tank, 7b applies than washing work.
Therefore; At this moment, the current value of the value that makes the electric current that in two coils 36,39 up and down of damper 21, flows via current supply circuit 60 during than washing work is big, the electric current of the same 1A that flows during for example with the testing of washings amount; Make the damping force of damper 21 become big, suppress the vibration of tank 6.
When this dehydration work; Beyond above-mentioned rotating range, not via 60 pairs of each two coils, 36,39 energisings up and down (damping force of damper 21 is increased) of current supply circuit, even but under these circumstances; Damper 21 has the damping force that the natural viscosity because of magnetic viscous fluid 51 obtains; And, also obtain by the damping force that friction produced between drag ring 31 and the axle 23, so tank 6 unusual vibrational state can not occur.
Next, the water supply work in execution " rinsing " stroke.This water supply work; The content of the water supply work before during with said washing work is identical, therefore, and under these circumstances; Do not carry out or not detecting (with reference to Fig. 1) by current supply circuit 60 performed energisings via 60 pairs of each energisings of two coils 36,39 up and down of current supply circuit yet.
Afterwards, carry out rinsing work.This rinsing work, the content during with described washing work is identical, therefore, under these circumstances, soaks into washings better in order to make washings, improves the rotary speed of cylinder 10.
The rotary speed of this cylinder 10 improves carries out several times (being 2 times in the illustrative example) midway in rinsing work, this moment is via 60 pairs of two coils, 36,39 energisings up and down of current supply circuit, and when energising, also carries out the detection of energising amount.
Thus, by two coils, 36,39 generation magnetic fields up and down, magnetic viscous fluid 51 is applied magnetic field, the viscosity of magnetic viscous fluid 51 improves, so the damping force of damper 21 increases, can suppress the vibration of tank 6.
Afterwards, carry out drainage works.The content of the drainage works after this drainage works and the said washing work is identical, therefore not via 60 pairs of each two coils, 36,39 energisings up and down of current supply circuit, and carry out undertaken by energising testing circuit 57 each up and down the energising of two coils 36,39 detect.
Whether its result with likewise above-mentioned, judges switching on, if be judged as not energising, then stops each energising of two coils 36,39 up and down, and also stops other operation, and carry out mistake demonstration.
Afterwards, the dehydration of carrying out in " rinsing " stroke (final dewatering) is worked.This dehydration work, identical with the content of above-mentioned dehydration (middle dehydration) work.
Promptly; The rotating range that in the process that the rotary speed that makes cylinder 10 improves gradually, resonates in tank 6 appearance; Arrive in the process that speed lowers gradually after the maximum speed at the tank 6 same rotating ranges that resonance occurs with the rotation of cylinder 10; Respectively via 60 pairs of current supply circuits each up and down two coils 36,39 carry out the energising of big slightly for example 1A, when this is respectively switched on, also carry out the detection of energising amount.
Thus, by two coils, 36,39 generation magnetic fields about each, magnetic viscous fluid 51 is applied magnetic field, the viscosity of magnetic viscous fluid 51 improves, so the damping force of damper 21 increases, suppresses the vibration of tank 6.
Afterwards, carry out " drying " stroke, carry out the testing of washings (wet thing) amount.This washings amount testing; Identical with the content of the washings amount testing at above-mentioned " washing " stroke initial stage; Therefore, via 60 pairs of current supply circuits each up and down two coils 36,39 carry out the energising of for example big slightly 1A, and when each is switched on, also carry out the detection of energising amount.
Through to the energising of two coils 36,39 up and down, make the damping force of damper 21 increase, thus be difficult to vibrate at tank 6, and can correctly detect the washings amount.
Afterwards, carry out dry work.This drying work makes cylinder 10 rotate to positive and negative two directions with low speed through the limit, and the limit plays a role drying unit 17, the air in the tank 6 is also circulated through dehumidifier 18, pressure fan 19 and heater 20 successively, thereby make washings dry.
At this moment, carry out each energising detection of two coils 36,39 up and down of being undertaken by energising testing circuit 57 off and on.Whether its result with likewise above-mentioned, judges switching on, if be judged as not energising, then stop each energising of two coils 36,39 up and down, and also stops other operations, and carry out mistake demonstration.
In addition, in this drying work, that undertaken by energising testing circuit 57 each up and down the energising of two coils 36,39 detect, carry out in order to use rinsing maching next time.
In the shown above-mentioned formation of first embodiment of first invention in such the present invention; The tank 6 that the cylinder 10 that is driven in rotation is arranged in internal configurations is carried out suspension 7a, the 7b of resiliency supported in the inside of outer container 1, have the damper 21 of the vibration of decay tank 6.
And damper 21 uses the functional fluid that viscosity is changed that applies of the electric energy that is carried out because of energising that damping force is changed, the timing beyond when the damping force that makes damper 21 changes, and the energising of implementing this damper 21 detects.
As stated, damper 21 uses the functional fluid that viscosity is changed owing to applying of electric energy to obtain necessary damping force, and damper 21 must be switched on reliably for this reason.
But, be used for can not obtaining expected effect under the situation that can not switch on to damper 21 to the lead-in wire disconnection of damper 21 energising etc.
With respect to this, in the formation of the present invention, the energising of implementing damper 21 detects, so can grasp the situation that damper 21 could be switched on, controls the damping force of damper 21.
And the energising that damper 21 is implemented in the timing beyond when the damping force that must make damper 21 changes detects, and brings therefore can not for the control of the damping force of damper to hinder and can carry out this energising detection.
In addition, in the especially above-mentioned formation, in the timing beyond when the damping force that makes damper 21 changes, before the operation of rinsing maching began, the energising of implementing damper 21 detected.
Thus, except above-mentioned effect, can before the operation beginning, grasp the situation that to carry out the energising of damper 21 as soon as possible, can not bring obstruction moving integral body.
In addition, in above-mentioned formation, in the timing beyond when the damping force that makes damper 21 changes, when the rotation of cylinder 10 stopped, energising that implementing damper 21 detected.
Thus; Can avoid: make the damping force of damper 21 change this situation thereby when cylinder 10 rotation, damper 21 switched on for the energising of implementing damper 21 detects; The damping force of the damper 21 in the time of can guaranteeing cylinder 10 rotations rightly also can suppress the vibration of tank 6 rightly.
And in above-mentioned formation, the energising of damper 21 detects, in the timing beyond when the damping force that makes damper 21 changes, after the detection of the washings amount in having implemented " washing " stroke etc. time of washing agent to be put, enforcement.
Thus; Even after the operation beginning; The energising that also can when cylinder 10 stops the rotation, implement damper 21 detects, so with likewise above-mentioned, can avoid: make the damping force of damper 21 change this situation thereby when cylinder 10 rotations, for the energising of implementing damper 21 detects damper 21 switched on; The damping force of the damper 21 in the time of can guaranteeing cylinder 10 rotations rightly also can suppress the vibration of tank 6 rightly.
And, under these circumstances, through the time of washing agent to be put such as utilization, need be not out of service for the energising of carrying out damper 21 detects in operation beginning back, can eliminate the waste of running time.
In addition, in above-mentioned formation, the energising of damper 21 detects, and in the timing beyond when the damping force that makes damper 21 changes, during draining before the dehydration work in " rinsing " stroke, implements.
Thus; Even after the operation beginning; The energising that also can when cylinder 10 stops the rotation, implement damper 21 detects, so with likewise above-mentioned, can avoid: make the damping force of damper 21 change this situation thereby when cylinder 10 rotations, for the energising of implementing damper 21 detects damper 21 switched on; The damping force of the damper 21 in the time of can guaranteeing cylinder 10 rotations rightly also can suppress the vibration of tank 6 rightly.
And, under these circumstances, when utilizing the draining before the dehydration work, need be not out of service for the energising of carrying out damper 21 detects in operation beginning back, can eliminate the waste of running time.
Fig. 7 representes second to the 4th embodiment of first among the present invention invention to Fig. 9, respectively to the present invention in the same symbol of the same part mark of first embodiment of first invention and omit explanation, only different portions is described.
(second embodiment of the invention of first among the present invention)
In second embodiment shown in Figure 7, the energising of damper 21 detects between the rotating and reverse of cylinder 10 and implements.
In the work of the work of the work of described " washing " stroke, " rinsing " stroke and " drying " stroke; As stated; Cylinder 10 is alternately rotated on positive and negative two directions with low speed carry out, promptly shown in the first half of Fig. 7, rotating and reverse alternately of cylinder 10 carried out.
Alternately carry out when rotating and reverse at this cylinder 10, shown in the latter half of this figure, the energising of between the rotating and reverse of this cylinder 10, implementing damper 21 detects.
Between the rotating and reverse of above-mentioned cylinder 10,, cylinder 10 is temporarily stopped in order to make cylinder 10 counter-rotatings.Therefore, under these circumstances, the energising that also can when cylinder 10 stops the rotation, implement damper 21 detects.
Therefore; With likewise above-mentioned; Can avoid: make the damping force of damper 21 change this situation thereby when cylinder 10 rotation, damper 21 switched on for the energising of implementing damper 21 detects; The damping force of the damper 21 in the time of can guaranteeing cylinder 10 rotations rightly also can suppress the vibration of tank 6 rightly.
And; Under these circumstances; When utilizing " washing " work respectively, during " rinsing " work and the time between the forward and reverse of " drying " cylinder separately 10 when working; Need be not out of service for the energising of carrying out damper 21 detects in operation beginning back, can eliminate the waste of running time.
In addition, under these circumstances, the energising of damper 21 detects, and enforcement is repeatedly in the scheduled time separately when " washing " work, when working with " drying " during " rinsing " work respectively.
Through such enforcement repeatedly, can more accurately grasp the situation that damper 21 could be switched on.
The energising of damper 21 detects, also can be when " washing " work, carry out during " rinsing " work and between the forward and reverse of the cylinder 10 of " drying " at least one when working when working.
In addition, the energising of damper 21 in this case detects, and through the time beyond each of 60 pairs of dampers 21 of current supply circuit is up and down during two coils 36,39 energisings, at no power the time, implements.
And, detect enforcement in the given time repeatedly about energising with damper 21, carry out in the time of can detecting in other above-mentioned energisings.
(the 3rd embodiment of the invention of first among the present invention)
In the 3rd embodiment of the present invention shown in Figure 8, in the energising of implementing repeatedly damper 21 detected, when damper 21 was not switched on, being judged as damper 21 can not switch in repeated detection.
Particularly; Being judged as the energising amount among step S3 in above-mentioned control content shown in Figure 6, the S9 respectively is 0A (" being "; Not energising) time; Whether the detection number of times that is 0A to this energising amount reaches for example 3 so repeatedly judging (step S101, S103), does not reach (" denying ") 3 times if be judged as, and then returns the energising that step S2, S8 carry out damper 21 and detects.
On the other hand; When in step S3, S9, being judged as the energising amount is not 0A (" denying "; Switch on) time, whether energising detection number of times is reached 5 times judge (step S102, S104), do not reach so repeatedly (" denying ") 5 times if be judged as; Then return step S2, S8, the energising of carrying out damper 21 detects.
And; Implementing between 5 energising detection periods, the energising amount be the detection number of times of 0A for example reach 3 times so repeatedly the time (among step S101, the S103 " being "), as being judged as the content that damper 21 can not be switched on respectively; Get into said step S4, S10; Stop each energising of two coils 36,39 up and down, and also stop other operation, and carry out the mistake demonstration damper 21.
In addition, having implemented 5 energising detections (among step S102, the S104 " being ") afterwards, get into step S5, S11 respectively.
Like this, be judged as damper 21 and can not switch on (step S4, S10), thereby can hold the situation that damper 21 could be switched on more reliably when damper 21 is not switched on repeatedly implementing between the energising detection period of damper 21 in repeated detection.
Especially can eliminate because of the noise in the circuit shown in Figure 5 and judge the situation that damper 21 could be switched on by error.
(the 4th embodiment of the invention of first among the present invention)
In the 4th embodiment of the present invention shown in Figure 9, the energising amount of the damper 21 when changing with the damping force that makes damper 21 is compared, and makes that the energising amount of the damper 21 the when energising of carrying out damper 21 detects is less.
Under these circumstances; Shown in Fig. 9 (a); The energising amount of the damper 21 (two coils 36,39 up and down) the when damping force that makes damper 21 is changed is made as A; Shown in Fig. 9 (b), when the energising amount of the damper 21 in the time of will carrying out the energising detection of damper 21 is made as B, switch on the mode of energising amount A＞energising amount B.
So, just can carry out the energising detection of damper 21, can suppress power consumption less through flowing through essential abundant little electric current.
In addition; Under these circumstances; When representing during work to make the damping force of damper 21 to change and when coming illustration to carry out the energising detection of damper 21 when " washing " work, during " rinsing " work and between the forward and reverse of " drying " cylinder separately 10 when working with dehydration; When other the damping force of having stated changes and energising when detecting, the energising amount is set at above-mentioned energising amount A＞energising amount B similarly but in addition.
In addition, the rinsing maching as first among the present invention invention is not limited to drum-type, can be applied to the vertical shape full-automatic washing machine that longitudinal axis shape ground has tank and swivelling chute too and implement.
And, also can be rinsing maching with functions/drying.
In addition; In above-mentioned embodiment; To detect how situation because of the lead-in wires such as disconnection of lead-in wire to cause switching on is the energising detection that content is carried out damper 21 (two coils 36,39 up and down); But being not limited thereto, can be that content is carried out to detect because of the short circuit of coil 36,39 etc. causes producing abnormal current also.
(first embodiment of the invention of second among the present invention)
Below, first embodiment (first embodiment) for the invention of second among the present invention being applied to drum-type washing drying machine describes with reference to Figure 10 to Figure 13.
At first, in Figure 11, having represented the overall structure of drum-type washing drying machine, is shell with outer container 221.Substantial middle portion at the front face of this outer container 221 (in Figure 11, being the right side) is formed with washings gateway 222, and the door 223 that opens and closes this washings gateway 222 is arranged at outer container 221 by axle with supporting.
In addition, be provided with guidance panel 224 on the top of the front face of outer container 221, (in the outer container 221) is provided with the control device 225 of operation control usefulness in its inboard.
Be equipped with tank 226 in the inside of outer container 221.It is axially cylindric for the horizontal axis of front and back (in Figure 11, being a right left side) that this tank 226 is, and on the base plate 221a of outer container 221, is that the front side tilts up through pairing left and right (in Figure 11, only illustrating a side) suspension 227 by resiliency supported with this tank 226.
In addition, the detailed structure of suspension 227 with after state.
At the back of tank 226 motor 228 is installed.This motor 228 comprises for example DC Brushless Motor, is outer rotor shape, and the rotating shaft (omitting diagram) that is installed on the central part of rotor 228a is via 229 slotting leading in the inside of tank 226 of bearing cap.
Be equipped with cylinder (swivelling chute) 230 in the inside of tank 226.It is axially cylindric for the horizontal axis of front and back that this cylinder 230 also is, and through the central part of this cylinder 230 at the rear portion being installed on the leading section of the rotating shaft of above-mentioned motor 228, thereby it supported to and tank 226 state that tilts up of front side coaxially.
Make cylinder 230 rotations through motor 228, therefore, cylinder 230 is swivelling chutes, and motor 228 plays a role as the drum drive that makes cylinder 230 rotations.
Spread all over whole zone at all sidepieces (stem portion) of cylinder 230 and be formed with a plurality of apertures 231.In addition, cylinder 230 and tank 226 all in front portion have peristome 232,233, wherein link to each other by the bellows 234 of ring-type between the peristome 233 of tank 226 and the above-mentioned washings gateway 222.
Consequently, washings gateway 222 is via the peristome 232 of the peristome 233 of bellows 234, tank 226 and cylinder 230 and be communicated in the inside of cylinder 230.
Rear portion as the bottom of the lowest part of tank 226 is connected with drainpipe 236 via draining valve 235.In addition, upwards follow forward, be equipped with drying unit 237 from the back of tank 226.
This drying unit 237 has dehumidifier 238, pressure fan 239 and heater 240, carries out and dehumidifies, then heats and make air to return the circulation in the tank 226 to the air in the tank 226, thereby make washings dry.
The detailed structure of suspension 227 is described here.Suspension 227 has damper 241, and this damper 241 is shown in figure 12, as critical piece, has cylinder body 242 and axle 243.
Wherein, Cylinder body 242 has attaching parts 244 in the upper end; Shown in figure 11, these attaching parts 244 are passed the installing plate 245 that is arranged at said tank 226 from lower direction top and clip usefulness nut 247 such as resilient sleeper-bearing 246 be fastenedly connected, thereby it is installed on tank 226.
With respect to this; Axle 243 has connecting portion 243a in the bottom; Shown in figure 11 equally; This connecting portion 243a passed the installing plate 248 of the base plate 221a that is arranged at said outer container 221 downwards and clip usefulness nuts 250 such as resilient sleeper-bearing 249 be fastenedly connected from the top, thereby it is installed on the base plate 221a of outer container 221.
Shown in figure 12, the pars intermedia in the inside of cylinder body 242 is pressed into and is fixed with upper magnet yoke 251.Upper magnet yoke 251 comprises magnetic material, forms the short cylinder shape that the upside of perimembranous within it has space 252, in this space 252, places and fixedly maintain the bearing 253 of ring-type.Bearing 253 comprises for example oil-impregnated sintered metal.
Position below the inner above-mentioned upper magnet yoke 251 of cylinder body 242 tight, the state that is installed on bobbin 255 with coiling inserts and fixedly maintains coil 254.In addition, the lower yoke 256 of ring-type, the seal (seal member) 257 of lip shape and the bearing 258 of ring-type are inserted and fixedly maintained in the position below the inner above-mentioned bobbin 255 of cylinder body 242 tight with the state that places in the carriage 259 of short cylinder shape in.
Wherein, lower yoke 256 comprises magnetic material equally with above-mentioned upper magnet yoke 251, and bearing 258 likewise comprises for example oil-impregnated sintered metal with above-mentioned bearing 253.
And, making axle 243, lower ending opening portion 260 beginnings from cylinder body 242 connect bearing 258, seal 257, lower yoke 256, bobbin 255, upper magnet yoke 251 and bearing 253 in order, insert the inside of cylinder body 242.
The axle 243 that this has inserted, the limit is supported by bearing 228,253, and the limit can relatively carry out axial moving back and forth with respect to bearing 258, seal 257, lower yoke 256, bobbin 255, upper magnet yoke 251 and bearing 253.
In addition, part on the upper magnet yoke 251 of cylinder body 242 becomes cavity 261, and the upper end of the axle 243 that has inserted arrives should cavity 261, is prevented to come off by back-up ring 262.
And; Between the axle 243 that has inserted and bobbin 255 with and near (on every side) promptly spools 243 and upper magnet yoke 251 between and spools 243 and lower yoke 256 between; Injection also is filled with the magnetic viscous fluid 263 as functional fluid, and the function that this magnetic viscous fluid 263 leaks is restrained in said seal 257 performances.
Called function property fluid; Be the fluid that the character function property ground of the rheology aspect of viscosity etc. is changed through the physical quantity that applies from the outside of control as stated, comprise as since applying of electric energy make the viscosity variation fluid magnetic viscous fluid 263 and do not have illustrated electric viscous fluid.
In this embodiment, the magnetic viscous fluid 263 that uses viscous characteristics to change, but the electric viscous fluid (ER fluid) that also can use viscous characteristics to change according to the intensity of electric field according to the intensity in magnetic field.
The bottom of the axle 243 below the outside that is positioned at cylinder body 242, the chimeric spring fastening 264 that is fixed with is equipped with the disc spring 265 that comprises around the compression disc spring of axle 243 between the bottom of this spring fastening 264 and cylinder body 242.
So, constitute suspension 227, and this suspension 227 is assembled between the base plate 221a of tank 226 and outer container 221, vibrationproof ground supports tank 226 on the base plate 221a of outer container 221.
In addition, said coil 254 is not connected in the drive circuit (omitting diagram) of damper 241 outsides through there being illustrated lead-in wire, thereby is energized.
In Figure 13, constitute with the block diagram electricity that to illustrate with said control device 225 be the center.Control device 225 comprises for example microcomputer; Controlling organization as the overall operation of index drum formula scrubbing-and-drying unit plays a role, the various operation signals of 266 pairs of these control device of the operation inputting part that comprises various console switch, 225 inputs that had from said guidance panel 224.
In addition, also import the water level detecting signals, and it is imported rotation detection signal from the turn-sensitive device 268 that is provided with for the rotation that detects motor 228 from the 267 pairs of control device of level sensor 225 that are provided with in order to detect the water level in the tank 226.
And; Control device 225; Control program based on said various inputs, testing result and prior storage; Drive circuit 270 is supplied with drive control signal, and this drive circuit 270 drives for feed water valve 269, motor 228, the draining valve 235 that is provided with supplying water in the tank 226, the motor 239a, the coil 254 in the damper 241 of thermal source (heater) 240a and said suspension 227 of heater 240 in this drying unit 237 of wind feeding blades (not have to illustrate) that drive the pressure fan 239 in the drying unit 237.
Then, the effect to first embodiment of second in the invention described above invention describes.
Based on the operation of guidance panel 224, when making the operation beginning through control device 225, the situation of standard is, and is shown in figure 10, carries out according to the order of " washing (cleanings) stroke ", " dehydration stroke ", " rinsing stroke " and " dry trip " and moves.
Wherein, in " washing stroke ", omit detailed explanation; At first; Carry out to detect the weight detecting work of the amount of the washings that placed in the cylinder 230, then, carry out make feed water valve 269 open to supply water in the tank 226 until with detect the corresponding water level of washings amount till water supply work.In addition, at this moment, execution is positioned over the supply that does not have the washing agent in the illustrated detergent container with supplying water simultaneously.
After water supply work, make cylinder 230 rotations, frontier inspection is surveyed the material of the washings that is placed in the cylinder 230, and carry out on the limit mainly is the washing work that washings is impacted washing.
When this washing work, be accompanied by the rotation of cylinder 230, tank 226 mainly vibrates on above-below direction.Up-down vibration corresponding to this tank 226; In suspension 227; Be installed on the cylinder body 242 of tank 226; Be accompanied by upper magnet yoke 251 and bearing 253, bobbin 255 and coil 254, carriage 259 and lower yoke 256, seal 257 and bearing 258, the limit makes disc spring 265 flexible, and the limit vibrates on above-below direction around axle 243.
When cylinder body 242 follows above-mentioned each parts on above-below direction, to vibrate like this; Between near the axle 243 between axle 243 and bobbin 255 and the coil 254 and it and upper magnet yoke 251 and spools 243 and lower yoke 256 between the magnetic viscous fluid 263 of being filled; Through because the frictional resistance that its viscosity produced applies damping force to suspension 227, make the amplitude fading of tank 226.
So, in this washing stroke, coil 254 is carried out the energising for the electric current of 0.5A of predetermined value, this moment.254 energisings then produce magnetic field to coil, and magnetic viscous fluid 263 is applied magnetic field, and the viscosity of magnetic viscous fluid 263 is raise.
In detail; Because coil 254 has been switched on; So produce the magnetic circuit of axle 243-magnetic viscous fluid 263-upper magnet yoke 251-cylinder body 242-carriage 259-lower yoke 256-magnetic viscous fluid 263-axle 243, the viscosity of the magnetic viscous fluid 263 of the position that magnetic flux passed through raises.
Especially between the axle 243 that magnetic density is high and the upper magnet yoke 251 and the viscosity rising of lower yoke 256 and each magnetic viscous fluid 263 of axle between 243, the frictional resistance increase.
Like this, the frictional resistance when cylinder body 242 follows said each parts, especially coil 254, upper magnet yoke 251 and lower yoke 256 on above-below direction, to vibrate increases, and causes damping force to increase.
In addition, meanwhile, because coil 254 heatings, especially when low temperature, magnetic viscous fluid 263 is heated, and has avoided its viscosity to become too high, and the hardness of seal 257 also lowers, and has avoided becoming excessive for the frictional force of axle 202.
Thus, no matter how the temperature (especially low temperature) of environment for use can both make the damping force of damper 241 necessarily change, can obtain stable fade performance.In addition, the damping force of the damper 241 of this moment is A.
After washing stroke finishes, make draining valve 235 open and carry out drainage works from tank 226 internal drainages.In this drainage works, stop energising (outage) to said coil 254.
Therefore, at this moment, the viscosity of magnetic viscous fluid 263 can be because of magnetic force raise, and the damping force of damper 241 is got back to the size that the natural viscosity through magnetic viscous fluid 263 obtains.
The damping force of damper 241 of this moment is C, the little (A＞C) of the damping force A of the damper 241 during than said washing stroke.The damping force A of the damper 241 when in addition, the damping force C of the damper 241 of this moment also can be with said washing stroke equates (A=C).
After " dehydration " stroke in; Make cylinder 230 rotations; Its rotary speed is risen step by step, will remain in water in the washings through centrifugal force and throw away and discharge, at its initial stage (during starting at the dehydration stroke; Till the rotating speed of cylinder 230 for example reaches 400rpm from 0), said coil 254 is carried out the energising of the electric current of the big 1A of predetermined value, this moment current value for than said washing stroke the time.
If to coil 254 energisings; Then the viscosity of magnetic viscous fluid 263 raises as stated; This moment in coil 254, flow through the current value ratio washing stroke time current value big; So it is also big to impose on the magnetic force of magnetic viscous fluid 263, so the viscosity of the viscosity of magnetic viscous fluid 263 during also than washing stroke is high, and it is big that the damping force of damper 241 becomes.
The damping force of damper 241 of this moment is B, the big (B＞A) of the damping force A of the damper 241 when being said washing stroke than the stroke beyond the dehydration stroke.
Thus, the damping force of the damper 241 when increasing tank 226 and the starting of dehydration stroke of resonance occurring avoids tank 226 to resonate, and makes the acceleration improvement of cylinder 230 rotations, smoothly transition when ensuing dehydration stroke stable.
When dehydration stroke stable, continue to keep the rotation of cylinder 230 at high speed, at this moment, the vibration of tank 226 is little, but still can take place, thus need avoid this transfer of vibration to outer container 221, and then to avoid being delivered to the ground in the room that is provided with scrubbing-and-drying unit.
At this moment, through stopping the energising (outage) to said coil 254, make that the viscosity of magnetic viscous fluid 263 can be because of magnetic force raise, the damping force of damper 241 is got back to the size (C) that the natural viscosity through magnetic viscous fluid 263 obtains.
Then, in the latter stage of dehydration stroke, likewise, tank 226 will resonate during with the starting of said dehydration stroke, so the electric current of the big 1A of the current value when likewise applying than said washing stroke to coil 254 during with starting.
Thus, the viscosity during the ratio of viscosities washing stroke of magnetic viscous fluid 263 is high, and it is B that the damping force of damper 241 increases, thereby has avoided tank 226 to resonate, and the performance improvement when making the end of dehydration stroke smoothly finishes the dehydration stroke.
After " rinsing " stroke in; At first, make feed water valve 269 open and carry out water supply work, follow supplying water in the tank 226 till the water level corresponding with described detection washings amount; Make cylinder 230 rotations, carrying out mainly is " rinsing " work that impacts the rinsing washings.
Promptly in this rinsing stroke, likewise carry out energising at the stroke of dehydration beyond the stroke to coil 254 with said washing stroke.
Afterwards; Do not illustrate; Follow-uply carry out final dehydration stroke, dry trip, final dehydration stroke also comprises coil 254 energisings, likewise carries out with said dehydration stroke; The limit makes cylinder 230 rotation limits that drying unit 237 is played a role and makes washings dry in the dry trip, likewise carries out the energising to coil 254 with said washing stroke.
In first embodiment of second invention in such the present invention, have and make the damper 241 of vibration attenuation of the tank 226 place cylinder 230, this damper 241 has: cylinder body 242; Remain on the inside of this cylinder body 242 and through being energized the coil 254 that produces magnetic field; Can relatively reciprocatingly connect this coil 254 and supported axle 243 in the axial direction; Be filled in this 243 and above-mentioned coil 254 between with and near magnetic viscous fluid 263; With the seal 257 of the leakage of restraining this magnetic viscous fluid 263, begin promptly before the dehydration stroke, to begin to carry out energising to coil 254 from washing stroke.
Before the dehydration stroke, begin to carry out energising like this to coil 254; Thereby reduce the viscosity of the magnetic viscous fluid 263 in the dehydration stroke when low temperature especially and the hardness of seal 257; Can make frictional force become appropriate for axle 243; So, can access stable fade performance no matter how the temperature of environment for use can both make the damping force of damper 241 necessarily change.
And; In above-mentioned formation; So that the relation of the damping force C of the damping force B of the damper 241 the during starting of the damping force A of the damper 241 of the stroke beyond the dehydration stroke, dehydration stroke and the damper 241 of dehydration stroke when stablize is the mode of B＞A >=C, execution is to the energising of coil 254.
As stated,, carry out the weight detecting work of the amount that detects the washings that in cylinder 230, is placed, in washing stroke, carry out the detection of the material of the washings that in cylinder 230, is placed at the initial stage of washing stroke.
These detections are through detection the rotation and/or the cogging of the motor 228 of cylinder 230 rotation to be carried out, so excessively suppressed the vibration of tank 226 if make the damping force of damper 241 increase, then detect and can not carry out accurately.
Therefore, damper 241 when washing stroke for the vibration suppression of the tank 226 MIN damping force (A) to the vibration that such problem can not occur not being carried out the energising that surpasses necessity to coil 254.
With respect to this, when the starting of dehydration stroke, as stated, for fear of tank 226 acceleration that resonance improves cylinder 230 rotations takes place, need make the damping force (B) of damper 241 big as far as possible.
On the contrary, when dehydration stroke stable, the vibration of tank 226 is transmitted, is transmitted earthward and all become problem to outer container 221, so must reduce damping force (C).
Therefore; In the stroke (especially at washing stroke) beyond the dehydration stroke; The electric current that reduces in coil 254, to flow through reduces the damping force A of damper 241; When the starting of dehydration stroke, increase the electric current in coil 254, flow through the damping force B of damper 241 is increased, the electric current that when the dehydration stroke is stablized, reduces in coil 254, to flow through makes damping force C reduce (B＞A >=C).
Thus, when the starting of the stroke of dehydration beyond the stroke, dehydration stroke and dehydration stroke when stablizing, can move with only damping force respectively no problemly.
And in first embodiment of second invention in the invention described above, (washing stroke) gone through and stopped changing to the dehydration stroke during coil 254 energising before the dehydration stroke.
Before the dehydration stroke (washing stroke) to the dehydration stroke change during, carry out during the drainage works.When carrying out this drainage works, the water in the tank 226 is discharged from, and the gross weight of tank 226 diminishes, so the load that the disc spring 265 of suspension 227 is born diminishes.
Thus, disc spring 265 pushes away tank 226 from the cylinder body 242 of damper 241 and makes its recovery, but this moment; If coil 254 is energized; Then the viscosity increased of magnetic viscous fluid 263 is big for the frictional force change of axle 243, so tank 226 is slack-off from cylinder body 242 rises (restoring to dehydration initial stage posture).
With regard to scrubbing-and-drying unit (rinsing maching) in recent years, expectation can be shortened the operation required time, and the time that can be used for drainage works also shortens, so the rise of above-mentioned tank 226 slowly is inappropriate.
With respect to this; Be set at before the dehydration stroke (washing stroke) go through stop coil 254 energising during and to the above-mentioned formation that the dehydration stroke changes; Through stopping energising to this coil 254, the viscosity of magnetic viscous fluid 263 is reduced, the frictional force for axle 243 is reduced; So can make tank 226 very fast, can help the shortening of drainage works time and then all move the shortening of required time from the rise of cylinder body 242.
Then, Figure 14 has represented second to the 5th embodiment of the invention of second among the present invention to Figure 18, respectively to the present invention in the same same symbol of part mark of first embodiment of second invention, omit explanation, only different portions is described.
(second embodiment of the invention of second among the present invention)
In second embodiment of second invention in the present invention shown in Figure 14, detect the temperature of extraneous gas (extraneous air), according to its testing result confirm before the stroke that dewaters, to carry out to the current value of the energising of coil 254 or the length of conduction time.
Particularly, at this moment, as the temperature testing organization of the temperature that detects extraneous gas, not shown, for example the bottom in outer container 201 is provided with temperature sensor.Before the dehydration stroke (during washing stroke),, judge that then whether its testing result (temperature of detected extraneous gas) is than 5 ℃ low (step S22) at first by the temperature (step S21) of said temperature sensor extraneous gas.
In above-mentioned steps S22, if be judged as low (" being "), then will be set at 1A to the current value of coil 254 energising, will be 10 minutes maybe to the length setting of time of coil 254 energisings, carry out energising (step S23) to this coil 254.
With respect to this, in step S22, if the temperature that is judged as extraneous gas, judges then that whether testing result in above-mentioned steps S21 is than 30 ℃ low (step S24) unlike 5 ℃ low (" denying ").
In this step S24, if be judged as low (" being "), then will be set at 0.5A to the current value of coil 254 energisings, maybe will be set at 5 minutes to the time span of coil 254 energisings, carry out energising (step S25) to this coil 254.
In addition, in above-mentioned steps S24,, then do not carry out energising (step S26) to coil 254 if be judged as not low (" denying ").
Like this; According to actual detected to the temperature of extraneous gas carry out control to coil 254 energisings (confirm current value or confirm the length of conduction time with replacing); Thereby can correspondingly adjust the damping force of damper 241 with the temperature of environment for use; Can not carry out meaningless (unnecessary) energising, can move efficiently coil 254.
(the 3rd embodiment of the invention of second among the present invention)
In the 3rd embodiment of second invention in the present invention shown in Figure 15, when the energising that before the dehydration stroke, begins, detect the current value that coil, flows through, the energising control when carrying out the dehydration stroke to coil 254 according to its testing result.
Particularly, at this moment, as the current value testing agency of detecting the current value that coil 254, flows through when the energising that begins before the stroke from dehydration, though not shown, have for example current sensor.
Before the dehydration stroke (during washing stroke); At first begin energising (step S111) to coil 254; Then through above-mentioned current sensor senses current value (step S112); Afterwards, judge that its testing result (detected current value) is whether than 50% little (step S113) of the predetermined current value that before this dehydration stroke, flows through.
In above-mentioned steps S113,, then stop step S112 is returned in coil 254 energisings (step S114) if be judged as little (" being ").With respect to this; In step S113; If be judged as not little (" denying "), then up to after stroke (dehydration stroke, rinsing stroke, final dewatering stroke, dry trip) till continue to carry out energising (step S115) with separately predetermined current value to coil 254.
Then, afterwards, judge whether finish (step S116) running time, do not finish (" denying "), then return step S115,, then finish energising (step S117) coil 254 if be judged as end (" being ") if be judged as.
Control the energising to coil 254 according to the temperature of extraneous gas, thereby can adjust the damping force of damper 241 according to the temperature of environment for use, can not carry out meaningless energising to coil 254, can move efficiently, all the situation with above-mentioned is identical for these.
At this moment, the temperature of environment for use also shows as the temperature of coil 254.In addition, the temperature of coil 254, also different because of adjusting frequency of the damping force of damper 241 etc., the frequency of its adjustment is high, and the temperature of coil 254 also raises.
With respect to this, the electric current that in coil 254, flows through is because of the temperature different sizes of coil 254.That is, if the temperature of coil 254 is high, the electric current that then in coil 254, flows through reduces, if the temperature of opposite coil 254 is low, it is big that the electric current that then in coil 254, flows through becomes.
Therefore, detect the current value in coil 254, flow through, thereby can judge temperature and/or the frequency of utilization etc. of temperature and then the environment for use of coil 254; From this viewpoint, as this embodiment, when the energising that before the dehydration stroke, begins, detect the current value that coil 254, flows through; According to its testing result; During control dehydration stroke to the energising of coil 254, thereby with likewise above-mentioned, can be corresponding to the damping force of the temperature adjustment damper 241 of environment for use.
In addition, also can not carry out meaningless energising and also can move efficiently and safely corresponding to the damping force of adjustment dampers 241 such as frequency of utilization reasonably to coil 254 energisings to coil 254.
In addition, this embodiment also can with the present invention in second the invention second embodiment implement in the lump.
(the 4th embodiment of the invention of second among the present invention)
In the 4th embodiment of second invention in the present invention shown in Figure 16; When the energising that before the dehydration stroke, begins, detect the current value that coil 254, flows through; Than predetermined value hour, the rotary speed of the cylinder 230 when making the dehydration stroke is difficult to control with rising in its testing result.
Particularly, at this moment, as the current value testing agency of detecting the current value that coil 254, flows through when the energising that begins before the stroke from dehydration, though not shown, have for example current sensor.
Before the dehydration stroke (during washing stroke), at first, begin coil 254 energisings (step S201) then through above-mentioned current sensor senses current value (step S202), afterwards, are judged whether its testing result (detected current value) is 0 (step S203).
In above-mentioned steps S203,, then carry out mistake and show (step S204), (step S205) out of service at guidance panel 24 if be judged as 0 (" being ").
With respect to this; In step S203; If be judged as detected current value is not 0 (" denying "), then judges that then testing result in said step S202 is whether than 50% little (step S206) of the predetermined current value that before this dehydration stroke, flows through, if be judged as little (" being "); Then stop energising (step S207), return step S202 coil 254.
In step S206,, then judge that then testing result in said step S202 is whether than 80% little (step S208) of the predetermined current value that before this dehydration stroke, flows through if be judged as not little (" denying ").
If be judged as little (" being "); The change of then controlling by following mode; This mode is: make to confirm that the rotary speed of the cylinder 230 in the dehydration stroke could rise, reduce about the threshold value of the vibratory output of tank 226, perhaps reduce the climbing (step S209) of the rotary speed of cylinder 230.
Therefore, under these circumstances, as the vibration detection mechanism of the vibration that detects tank 226, have the vibrating sensor that does not have illustrated acceleration transducer etc., perhaps control device 225 has the program of the climbing of the rotary speed that changes cylinder 230.
If in the control content of above-mentioned steps S209, reduce to confirm that the rotary speed of cylinder 230 could rise, about the threshold value of the vibratory output of tank 226, then the rotary speed of cylinder 230 is difficult to rise.
In addition, even make the control that the climbing of rotary speed of cylinder 230 reduces, the rotary speed of cylinder 230 also is difficult to rise.Promptly; Under any situation, all make the control that the rotary speed of the cylinder 230 of dehydration during stroke is difficult to rise (the time dependent situation of rotary speed when Figure 17 representes to make the control that the climbing of rotary speed of cylinder 230 reduces, cylinder 230).
With respect to this; In step S208; If be judged as not little (" denying "), then up to after stroke (dehydration stroke, rinsing stroke, final dewatering stroke, dry trip) till proceed energising (step S210) with predetermined current value separately to coil 254.
Then, afterwards, judge whether finish (step S211) running time, do not finish (" denying "), then return step S210,, then finish energising (step S212) coil 254 if be judged as end (" being ") if be judged as.
As previously mentioned; If because of the frequency of the adjustment of the damping force of the temperature height of environment for use and/or damper 241 makes the temperature of coil 254 raise greatly, the electric current that then in coil 254, flows through reduces, consequently; Be difficult to increase the damping force of damper 241, be difficult to suppress the vibration of tank 226.
With respect to this; As this embodiment; When the energising that before the dehydration stroke, begins, detect the current value that coil 254, flows through, under its testing result situation littler than predetermined value, the control (step S208, S209) that the rotary speed of the cylinder 230 when making the dehydration stroke is difficult to rise; Thereby reduce the generation of the vibration of tank 226; Even therefore under the situation of the damping force that can not increase damper 241, also can improve acceleration, the decelerability of dehydration stroke, the dehydration stroke is finished smoothly.
In addition, at this moment, according to the result who detects the current value gained that coil 254, flows through when the energising that begins before the stroke from dehydration; Be under 0 the situation in this testing result; Carry out mistake and show (step S204), and (step S205) out of service, thereby security can be increased.
In addition, this embodiment also can with the present invention in second the invention second embodiment implement in the lump.
(the 5th embodiment of the invention of second among the present invention)
In the 5th embodiment of second invention in the present invention shown in Figure 180, use damper 271 to replace the damper 241 of first embodiment of second invention.
With regard to this damper 271, it has coil, and this coil is divided into these two of coil 254a and lower coil 254b, and they are installed on the state of upper bobbin 255a and lower lower 255b to reel respectively, clips centre yoke 272, fixedly remains on the inside of cylinder body 242.
In addition; Under the situation of this formation; Outside at cylinder body 242; With last coil 254a and lower coil 254b accordingly, the temperature sensor (for example thermistor) 273,274 as the temperature testing organization of the temperature that detects them is installed, this temperature sensor 273,274 replace second invention second embodiment temperature sensor and work.
And in the outside of cylinder body 242, same and last coil 254a and lower coil 254b are separately installed with a plurality of fin 275,276 as the cooling mechanism of the temperature of reduction coil accordingly.
Through these, can directly detect the temperature of coil 254a and lower coil 254b, and can suppress the temperature rising of coil 254a and lower coil 254b effectively.
In addition; Between upper magnet yoke 251 and upper bobbin 255a, seal 277 is set; And between middle yoke 272 and upper bobbin 255a, seal 278 is set, and, between middle yoke 272 and lower lower 255b, seal 279 is set; And between lower yoke 256 and lower lower 255b, seal 280 is set, can further suppresses the leakage of magnetic viscous fluid 263.
These seals 277～280 use O shape ring under these circumstances.
In addition, this embodiment also can with second to the 4th embodiment of second invention in any one or all implement in the lump.
More than several embodiments of the present invention is illustrated, but these embodiments all be as an example and the record, be not to be used to limit scope of the present invention.These new embodiments also can be implemented with other various modes, in the scope of the main idea that does not break away from invention, can carry out various omissions, displacement and change.These embodiments and its distortion all are included in scope of invention, the main idea, and are also included within the invention that technical scheme puts down in writing and in the scope that is equal to it.
Claims (9)
1. a rinsing maching is characterized in that,
Possess:
Outer container;
Be configured in the tank of the inside of this outer container;
Be configured in the inside of this tank, the swivelling chute that is driven in rotation; With
Suspension, its inner elastomeric at said outer container supports said tank, has the damper of the vibration attenuation that makes said tank,
Said damper uses viscosity because the functional fluid that changes that applies of the electric energy of being realized through switching on changes damping force,
Timing beyond when the damping force that makes said damper changes, the energising of implementing this damper detects.
2. rinsing maching according to claim 1 is characterized in that,
The energising of before the operation of said rinsing maching begins, implementing said damper detects.
3. rinsing maching according to claim 1 is characterized in that,
Energising that when the rotation of said swivelling chute stops, implementing said damper detects.
4. rinsing maching according to claim 1 is characterized in that,
Wait after the detection in the washing stroke of said rinsing maching, that implemented the washings amount drops into the time of washing agent, and the energising of implementing said damper detects.
5. rinsing maching according to claim 3 is characterized in that,
The energising of implementing said damper during draining before dehydration work detects.
6. rinsing maching according to claim 3 is characterized in that,
The energising of between the forward and reverse of said swivelling chute, implementing said damper detects.
7. according to any one described rinsing maching in the claim 1 to 6, it is characterized in that,
The energising of repeatedly implementing said damper in the given time detects.
8. rinsing maching according to claim 7 is characterized in that,
When repeated detection went out said damper and do not switch on, being judged as said damper can not switch on.
9. according to any one described rinsing maching in the claim 1 to 6, it is characterized in that,
When the energising amount of the said damper the when energising that the energising amount of the said damper when the damping force that will make said damper changes is made as A, will carry out said damper detects is made as B, so that the mode of A＞B is switched on.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP067896/2010 | 2010-03-24 | ||
| JP2010067896A JP5468433B2 (en) | 2010-03-24 | 2010-03-24 | Drum washing machine |
| JP2010141530A JP5508951B2 (en) | 2010-06-22 | 2010-06-22 | Washing machine |
| JP141530/2010 | 2010-06-22 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210124149.1A Division CN102644179B (en) | 2010-03-24 | 2011-03-24 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102199851A CN102199851A (en) | 2011-09-28 |
| CN102199851B true CN102199851B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110075183XA Expired - Fee Related CN102199851B (en) | 2010-03-24 | 2011-03-24 | Washing machine |
| CN201210124149.1A Active CN102644179B (en) | 2010-03-24 | 2011-03-24 | Washing machine |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210124149.1A Active CN102644179B (en) | 2010-03-24 | 2011-03-24 | Washing machine |
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| KR (1) | KR101286819B1 (en) |
| CN (2) | CN102199851B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306088A (en) * | 2013-06-27 | 2013-09-18 | 苏州祺尚纺织有限公司 | Roller washing machine for fabric |
| JP2017113310A (en) * | 2015-12-24 | 2017-06-29 | 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． | Washing machine |
| CN111120561B (en) * | 2018-11-01 | 2022-05-27 | 株洲中车机电科技有限公司 | Damping device and damping method for electric cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671977A (en) * | 2002-05-22 | 2005-09-21 | 戴森技术有限公司 | Automatic balancing device |
| KR20070100058A (en) * | 2006-04-06 | 2007-10-10 | 엘지전자 주식회사 | Friction damper and washing machine having the same |
| KR20080064304A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Washing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04282040A (en) * | 1991-03-08 | 1992-10-07 | Kayaba Ind Co Ltd | Shock absorber using electroviscous fluid |
| JPH07178287A (en) * | 1993-12-22 | 1995-07-18 | Matsushita Electric Ind Co Ltd | Washing machine |
| US5956951A (en) * | 1996-09-20 | 1999-09-28 | Mr Technologies | Adjustable magneto-rheological fluid device |
| IT1294130B1 (en) * | 1997-05-15 | 1999-03-22 | Electrolux Zanussi Elettrodome | METHOD TO REALIZE AN ACTIVE DAMPING OF VIBRATIONS DUE TO THE WASHING GROUP AND WASHING MACHINE TO IMPLEMENT THIS |
| IT1294131B1 (en) * | 1997-05-21 | 1999-03-22 | Electrolux Zanussi Elettrodome | METHOD TO ENSURE A CORRECT DYNAMIC SET-UP OF THE WASHING GROUP OF A WASHING MACHINE AND MACHINE FOR THE IMPLEMENTATION |
| KR100368945B1 (en) * | 1998-07-28 | 2003-04-03 | 삼성전자 주식회사 | Drum Washing Machine |
| JP3877039B2 (en) | 2000-04-03 | 2007-02-07 | 株式会社日立製作所 | Dehydrating washing machine |
| CN101037840A (en) * | 2007-04-17 | 2007-09-19 | 海尔集团公司 | Barrel washing machine having magnetic rheologic active vibration damper |
| JP4857197B2 (en) * | 2007-06-04 | 2012-01-18 | 日立アプライアンス株式会社 | Drum washing machine |
-
2010
- 2010-12-29 KR KR1020100137765A patent/KR101286819B1/en active IP Right Grant
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2011
- 2011-03-24 CN CN201110075183XA patent/CN102199851B/en not_active Expired - Fee Related
- 2011-03-24 CN CN201210124149.1A patent/CN102644179B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671977A (en) * | 2002-05-22 | 2005-09-21 | 戴森技术有限公司 | Automatic balancing device |
| KR20070100058A (en) * | 2006-04-06 | 2007-10-10 | 엘지전자 주식회사 | Friction damper and washing machine having the same |
| KR20080064304A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110107267A (en) | 2011-09-30 |
| KR101286819B1 (en) | 2013-07-22 |
| CN102644179A (en) | 2012-08-22 |
| CN102644179B (en) | 2015-05-13 |
| CN102199851A (en) | 2011-09-28 |
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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 Corp. |
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