CN104074028A - Washing machine with magneto rheological fluid clutch - Google Patents
Washing machine with magneto rheological fluid clutch Download PDFInfo
- Publication number
- CN104074028A CN104074028A CN201310102423.XA CN201310102423A CN104074028A CN 104074028 A CN104074028 A CN 104074028A CN 201310102423 A CN201310102423 A CN 201310102423A CN 104074028 A CN104074028 A CN 104074028A
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- China
- Prior art keywords
- clutch
- washing machine
- magnetic
- liquid
- rheologic liquid
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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
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention discloses a washing machine with a magneto rheological fluid clutch. The washing machine comprises an inner barrel, an outer barrel and an impeller, wherein the magneto rheological fluid clutch for at least driving the impeller to rotate is arranged between the inner barrel and the outer barrel of the washing machine. The clutch can drive the impeller to individually rotate, and can drive the impeller and the inner barrel to synchronously rotate; and the washing machine has the advantages of compact structure, little clutch abrasion and good clutch performance.
Description
Technical field
The present invention relates to washing machine field, particularly a kind of clutch with magnetic rheologic liquid and the washing machine of this clutch with magnetic rheologic liquid is set.
Background technology
The structure of conventional washer is by formations such as interior bucket, outer barrel, agitating device (as impeller), transmission system, control system and problems.When laundry, interior bucket does not rotate, and agitating device is done both forward and reverse directions rotation, drives inner bucket water and clothing to rotate and realizes washing.This washing methods, through practice test, finds to exist some defects: be only 1, to rely on agitating device to rotate to produce current, washing form is single, and clean ratio is difficult to improve.2,, a little less than flow intensity, clothing easily produces winding.In order to overcome above-mentioned defect, some washing machine manufacturing enterprises design one " turning barrel " washing machine, its mode of washing is, interior bucket is in free state, when agitating device rotates, interior bucket dependence agitating device rotates the reaction force rotation producing, and in realizing, bucket counter-rotates with agitating device, thereby reaches the object of " washboard ".But the method is Shortcomings still, due to the unpowered drive of interior bucket, the rotation dynamics of interior bucket is little, and agitating device is only in the bottom surface rotating of interior bucket, the effect of " washboard " is little, and it is not obvious that clean result improves, and still not can solve the problem that obligation is wound around.In order to overcome above-mentioned defect, develop a kind of washing machine of two-way washing, this washing machine is that interior bucket has configured power drive mechanism, when washing, interior bucket is all pressed opposite direction with agitating device and is rotated under the drive of power, to realize the object that improves " washboard " effect, if but still adopt existing interior bucket and impeller structure on this washing machine, the specific aim that seems is not strong, because impeller is located at bottom of the barrel, streams is single, it is very not enough that flow intensity seems, be difficult to form rolling current, clean result is difficult to higher, and gap between interior bucket and impeller easily falls into foreign matter.
Along with the birth of two-power washing machine, the problems referred to above are readily solved, traditional double dynamical washing machine mostly adopts mechanical clutch, there is certain friction in mechanical clutch, there is frictional dissipation, the arrangement of clutch that has in addition part directly to drive washing machine is electromagnetic clutch type, also has part washing machine to adopt the mode of buoyancy clutch, and when water inlet washing, interior bucket is suspended in outer barrel.The washing machine of several clutch modes above, because of the restriction of its mechanical structure, all can take larger volume, and complex structure, involves great expense, fragile.Clutch is arranged between interior outer barrel, and the mechanical structure of macrostructure makes the space between interior outer barrel excessive, makes the volume of washing machine of identical washing amount excessive, and meanwhile, frictional dissipation has reduced the service life of washing machine.
Novel a kind of arrangement of clutch, only the clutch-plate on a small amount of magnetic flow liquid of needs and impeller shafts is realized the effect of clutch, magnetic flow liquid (Magneto rheological Fluid, be called for short MR fluid) be by high magnetic permeability, the small soft magnetic particles of low magnetic hysteresis, mix with non-magnetic liquid, belong to controlled fluid, can realize the change of damping, there is intensity high, viscosity is low, energy requirement is little, the features such as temperature stability is good, under the effect of outside magnetic field, can become by Newtonian fluid Bingham plastic body or the viscoelastic body that shear yield stress is higher in the moment of Millisecond, and this transformation is continuous reversible.
The satisfied index of magnetic flow liquid has:
(1) zero magnetic field viscosity is low, to make it under magnetic fields, while having equal shear yield strength growth, has larger adjustable range.
(2) high-intensity magnetic field down cut yield strength is high, at least should reach 20～30Kpa, and this is one of leading indicator of weighing magnetic flow liquid characteristic.
(3) impurity interference is little, to increase its scope of application.
(4) the temperature scope of application is wide, has high stability in quite wide temperature range.
(5) fast response time, preferably can reach Millisecond, so that MR fluid shock absorber is as initiatively and when half active controller, does not substantially have time lag problem.
(6) resistance to settling is good, and long storage time should be substantially not stratified.
(7) energy consumption is low, under weak magnetic field, can produce larger shear yield strength.
(8) nontoxic, non-volatile, free from extraneous odour, this is to be determined by its Application Areas.
Clutch with magnetic rheologic liquid is divided into driving link and driven member, wherein the drive plate of clutch is driving link, clutch housing is driven member, drive plate rotates with certain speed, in the time of coil (being solenoid) no power, magnetic flow liquid in the middle of housing and drive plate keeps its mobility, and driven housing is low speed rotation under the effect of magnetic flow liquid sticky shearing power only; When after coil electricity, in generation magnetic field, space, make magnetic flow liquid generation rheological effect, the connection chaining that is magnetized of the ferromagnetic particle in magnetic flow liquid, magnetic flow liquid becomes class solid, this is, as long as driving link and driven member exist speed discrepancy, will shear these " iron chains ", thereby transmission is apart from increase, housing speed rising, thus play the function of output rotating speed regulation.
Summary of the invention
The object of this invention is to provide a kind of between outer barrel distance little, the washing machine that uses clutch just can drive respectively agitation wheel for washing machine and interior bucket to rotate.
Another object of the present invention is to provide one can compact conformation, and clutch abrasion is little, the washing machine that disengaging performance is good.
For reaching above object, the technical solution used in the present invention is: a kind of washing machine that clutch with magnetic rheologic liquid is set, the interior bucket, outer barrel and the impeller that comprise washing machine, be provided with the clutch with magnetic rheologic liquid that at least drives impeller to rotate between the inner barrel and outer barrel of washing machine.
Described clutch with magnetic rheologic liquid comprise a column line shaft, be sheathed on cylindrical shape fixed cover on line shaft and be arranged at the inner circular clutch-plate being fixedly connected with line shaft of fixed cover.
In described fixed cover, be provided with the cavity that is full of magnetic flow liquid, described magnetic flow liquid surrounds clutch-plate.
Described clutch-plate is set on line shaft, and line shaft drives clutch-plate rotatable motion in cavity.
Describedly fixedly be outside equipped with a pair of positive electromagnet and the negative electricity magnet that pole polarity is contrary, the cavity at the magnetic force line cutting magnetic flow liquid place producing after described positive electromagnet and the energising of negative electricity magnet, positive electromagnet and negative electricity magnet are oppositely arranged.
The line shaft of described clutch with magnetic rheologic liquid is connected with the output shaft of the drive motors of washing machine, when the electromagnet of clutch with magnetic rheologic liquid is not switched on, drives separately impeller to rotate.
The output of described line shaft is connected with the power shaft of impeller, and fixed cover is connected with the power shaft of interior bucket, and when electromagnet energising, clutch with magnetic rheologic liquid drives impeller and interior bucket to rotate simultaneously.
The power line of described positive electromagnet and negative electricity magnet is connected with the controller of the positive and negative magnet switching electricity of control on washing machine.
Described positive electromagnet and negative electricity magnet are oppositely arranged on the both sides of cavity, parallel with the bottom surface of outer barrel in washing machine, near washing machine inner tub or outer barrel.
Described positive electromagnet and negative electricity magnet are oppositely arranged on the both sides of cavity, parallel with the vertical plane of outer barrel in washing machine.
A kind of washing machine that clutch with magnetic rheologic liquid is set of the present invention, use compact conformation, the less clutch with magnetic rheologic liquid that takes up space, diminishes the distance between the inner barrel and outer barrel of washing machine, make the washing machine volume of same capability less, the washing machine capacity of same volume is larger.The use of clutch with magnetic rheologic liquid, can intermittently under the control of program rotate and stop the interior bucket of washing machine with impeller, reach and clean better effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of a kind of washing machine that clutch with magnetic rheologic liquid is set of the present invention;
1, interior bucket 2, outer barrel 3, impeller 4, clutch 5, line shaft 6, fixed cover 7, clutch-plate 8, positive electromagnet 9, negative electricity magnet 10, cavity 11, magnetic flow liquid
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of washing machine that clutch with magnetic rheologic liquid is set of the present invention is described in detail:
As shown in Figure 1, a kind of washing machine that clutch with magnetic rheologic liquid is set, comprises interior bucket 1, outer barrel 2 and the impeller 3 of washing machine, between the interior bucket 1 of washing machine and outer barrel 2, is provided with the clutch with magnetic rheologic liquid 4 that at least drives impeller 3 to rotate.
Clutch with magnetic rheologic liquid comprise a column line shaft 5, be sheathed on cylindrical shape fixed cover 6 on line shaft and be arranged at the inner circular clutch-plate 7 being fixedly connected with line shaft of fixed cover 6.In fixed cover 6, be provided with the cavity 10 that is full of magnetic flow liquid 11, magnetic flow liquid 11 surrounds clutch-plate 7.Clutch-plate 7 is set on line shaft 5, and line shaft 5 drives clutch-plate 7 in the interior rotatable motion of cavity 10.
Fixed cover 6 is outside equipped with a pair of positive electromagnet 8 and the negative electricity magnet 9 that pole polarity is contrary, between described positive electromagnet 8 and negative electricity magnet 9, be provided with every disk, the cavity 10 at the magnetic force line cutting magnetic flow liquid place producing after positive electromagnet and the energising of negative electricity magnet, is oppositely arranged.
The line shaft 5 of clutch with magnetic rheologic liquid 4 is connected with the output shaft of the drive motors of washing machine, and the power shaft with impeller 3 of line shaft output is connected, and fixed cover 6 is connected with the power shaft of interior bucket 1.The power line of positive electromagnet 8 and negative electricity magnet 9 is connected with the controller of the positive and negative magnet switching electricity of control on washing machine.Positive electromagnet 8 and negative electricity magnet 9 are oppositely arranged on the both sides of cavity, parallel with the bottom surface of outer barrel in washing machine, near washing machine inner tub 1 or outer barrel 2.Positive electromagnet 8 and negative electricity magnet 9 are oppositely arranged on the both sides of cavity, parallel with the vertical plane of outer barrel in washing machine.
Above-mentioned clutch with magnetic rheologic liquid can be clutch with magnetic rheologic liquid 4 cylindraceous, can be also discoid clutch with magnetic rheologic liquid 4.In order to save the space between outer barrel in washing machine, the capacity of washing machine is increased, save the space of washing machine.
After energising, clutch with magnetic rheologic liquid 4 drives impeller 3 to rotate, magnetic flow liquid 11 is liquid, clutch-plate 7 freely rotates under the encirclement of magnetic flow liquid, because the viscosity of magnetic flow liquid 11 exists, in can driving, bucket carries out the rotation of low speed, rotate after N second, electromagnet energising, the magnetic force line cutting magnetic flow liquid that electromagnet produces, make magnetic flow liquid solidification, clutch-plate 7 can not freely rotate again like this, but under the solid effect of magnetic flow liquid 11, clutch-plate 7 and fixed cover 6 are connected as one, power 5 axles are driven and are rotated by drive unit, line shaft 5 drives impeller 3 to rotate, drive clutch-plate 7 simultaneously, clutch-plate 7 drives fixed cover 6, because fixed cover 6 connects the power shaft of interior barrel 1, therefore, interior bucket 1 rotates M second with impeller 3 simultaneously, after M second, electromagnet breakpoint, magnetic flow liquid recovers liquid condition, line shaft 5 drives impeller 3 to rotate backward N second, interior bucket 1 can only rotate with original direction under the effect of inertia.Reach the object of hand rubbing laundry, increase the clean result of washing machine.
Magnetic flow liquid changes under solid-state and liquid two states, time is very short, only has the conversion time of several milliseconds, so, the wear rate of clutch is very low, and interior bucket also can be promoted to rapidly speed identical with impeller, the speed-raising time in the middle of having reduced, increase the frictional force of clothing and interior bucket, improved and clean effect.
Above-mentioned N second and M are washing machines according to laundry load or the rotation time of user or factory settings again second.Like this, can automatically select wash time according to capacity and the load of laundry, under the object that reaches identical clean result, can save wash time, save electric energy, the wear rate of washing machine declines simultaneously, has extended the life-span of washing machine.
Embodiment in above-described embodiment is only that the preferred embodiments of the present invention are described; not the spirit and scope of the present invention are limited; do not departing under the prerequisite of design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (10)
1. one kind arranges the washing machine of clutch with magnetic rheologic liquid, the interior bucket (1), outer barrel (2) and the impeller (3) that comprise washing machine, is characterized in that: between the interior bucket (1) of washing machine and outer barrel (2), be provided with the clutch with magnetic rheologic liquid (4) that at least drives impeller (3) to rotate.
2. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 1, is characterized in that: described clutch with magnetic rheologic liquid (4) comprise a column line shaft (5), be sheathed on cylindrical shape fixed cover (6) on line shaft and be arranged at the inner circular clutch-plate (7) being fixedly connected with line shaft (4) of fixed cover (6).
3. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 2, is characterized in that: in described fixed cover (6), be provided with the cavity (10) that is full of magnetic flow liquid, described magnetic flow liquid surrounds clutch-plate (7).
4. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 3, is characterized in that: it is upper that described clutch-plate is set in line shaft (1), and line shaft drives clutch-plate (7) rotatable motion in cavity (10).
5. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 2, it is characterized in that: described fixed cover (6) is outside equipped with a pair of positive electromagnet (8) and the negative electricity magnet (9) that pole polarity is contrary, the cavity (10) at the magnetic force line cutting magnetic flow liquid place producing after described positive electromagnet (8) and negative electricity magnet (9) energising, positive electromagnet and negative electricity magnet are oppositely arranged.
6. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 2, it is characterized in that: the line shaft (5) of described clutch with magnetic rheologic liquid is connected with the output shaft of the drive motors of washing machine, when the electromagnet of clutch with magnetic rheologic liquid is not switched on, drive separately impeller (3) to rotate.
7. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 4, it is characterized in that: the output of described line shaft (5) is connected with the power shaft of impeller (3), fixed cover (6) is connected with the power shaft of interior bucket (1), when electromagnet energising, clutch with magnetic rheologic liquid drives impeller (3) and interior bucket (1) to rotate simultaneously.
8. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 5, is characterized in that: described positive electromagnet (8) is connected with the controller of the positive and negative magnet switching electricity of control on washing machine with the power line of negative electricity magnet (9).
9. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 8, it is characterized in that: described positive electromagnet (8) and negative electricity magnet (9) are oppositely arranged on the both sides of cavity (10), parallel with the bottom surface of outer barrel in washing machine, near washing machine inner tub (1) or outer barrel (2).
10. a kind of washing machine that clutch with magnetic rheologic liquid is set according to claim 8, is characterized in that: described positive electromagnet (8) and negative electricity magnet (9) are oppositely arranged on the both sides of cavity (10), parallel with the vertical plane of outer barrel in washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102423.XA CN104074028B (en) | 2013-03-27 | 2013-03-27 | A kind of washing machine that clutch with magnetic rheologic liquid is set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102423.XA CN104074028B (en) | 2013-03-27 | 2013-03-27 | A kind of washing machine that clutch with magnetic rheologic liquid is set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074028A true CN104074028A (en) | 2014-10-01 |
| CN104074028B CN104074028B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310102423.XA Active CN104074028B (en) | 2013-03-27 | 2013-03-27 | A kind of washing machine that clutch with magnetic rheologic liquid is set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254631A (en) * | 2020-03-28 | 2020-06-09 | 郑建 | Three-dimensional double-drum washing machine |
| CN113398818A (en) * | 2021-06-09 | 2021-09-17 | 重庆科技学院 | Magnetorheological suspensions anti storage device that subsides based on alternating magnetic field disturbance |
| CN113564875A (en) * | 2020-04-28 | 2021-10-29 | 无锡小天鹅电器有限公司 | Power transmission device, clothes treatment equipment and control method thereof |
| CN113564874A (en) * | 2020-04-28 | 2021-10-29 | 无锡小天鹅电器有限公司 | Pulsator washing machine and power driving device and control method thereof |
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| CN201368172Y (en) * | 2009-03-19 | 2009-12-23 | 宁波大学 | Magneto rheological fluid damper |
| CN102051790A (en) * | 2009-11-05 | 2011-05-11 | 海尔集团公司 | Direct drive engaging and disengaging device of washing machine |
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2013
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| US5845752A (en) * | 1997-06-02 | 1998-12-08 | General Motors Corporation | Magnetorheological fluid clutch with minimized reluctance |
| US5896965A (en) * | 1997-06-02 | 1999-04-27 | General Motors Corporation | Magnetorheological fluid fan clutch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254631A (en) * | 2020-03-28 | 2020-06-09 | 郑建 | Three-dimensional double-drum washing machine |
| CN113564875A (en) * | 2020-04-28 | 2021-10-29 | 无锡小天鹅电器有限公司 | Power transmission device, clothes treatment equipment and control method thereof |
| CN113564874A (en) * | 2020-04-28 | 2021-10-29 | 无锡小天鹅电器有限公司 | Pulsator washing machine and power driving device and control method thereof |
| WO2021217955A1 (en) * | 2020-04-28 | 2021-11-04 | 无锡小天鹅电器有限公司 | Pulsator washing machine and power driving device therefor, and control method |
| WO2021217956A1 (en) * | 2020-04-28 | 2021-11-04 | 无锡小天鹅电器有限公司 | Power transmission device, laundry treatment apparatus and control method therefor |
| CN113398818A (en) * | 2021-06-09 | 2021-09-17 | 重庆科技学院 | Magnetorheological suspensions anti storage device that subsides based on alternating magnetic field disturbance |
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| Publication number | Publication date |
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| CN104074028B (en) | 2017-12-29 |
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Effective date of registration: 20160831 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
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