CN103148120B - A kind of high efficiency bistable electromagnetic clutch - Google Patents
A kind of high efficiency bistable electromagnetic clutch Download PDFInfo
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- CN103148120B CN103148120B CN201310093109.XA CN201310093109A CN103148120B CN 103148120 B CN103148120 B CN 103148120B CN 201310093109 A CN201310093109 A CN 201310093109A CN 103148120 B CN103148120 B CN 103148120B
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Abstract
A kind of high efficiency bistable electromagnetic clutch, what the present invention relates to is actuation techniques field.It is that this structure in order to solve existing clutch and this step mode exist and need to apply larger electric current, just can produce enough starting forces, and after starting up, the middle active force produced is excessive again, is the problem of tens times of tripping force.Be provided with between the upper-end surface of the right side of the upper conducting magnetic column of its first stator and the upper conducting magnetic column of the first stator between chamfering, the right side of lower conducting magnetic column of the first stator and the lower end surface of the lower conducting magnetic column of the first stator and be provided with chamfering; Be provided with between the upper-end surface of the left side of the upper conducting magnetic column of the second stator and the upper conducting magnetic column of the second stator between chamfering, the left side of lower conducting magnetic column of the second stator and the lower end surface of the lower conducting magnetic column of the second stator and be provided with chamfering.The present invention is applicable to the bistable electromagnetic clutch system that general precision requires, the Direct driver for brshless DC motor and bistable electromagnetic clutch controls.
Description
Technical field
What the present invention relates to is actuation techniques field.
Background technique
In full-automatic impeller type washing machine, in order to adopt brshless DC motor direct drive mode, a clutch is needed to carry out the switching of washing and dewatering state.What traditional speed-reducing clutch adopted is all the clutch that mechanical method realizes working state, general magnetic clutch mechanism majority is all that monostable is in conjunction with elasticity restoration methods, namely energising keeps certain steady state continuously, during no electric circuit, Surface of action can be thrown off under elastic reaction, recovers another state.In washing machine, the time of corresponding washing and dehydration is all long, and the angle simplified from energy saving and structural design is considered, the method adopting energising to keep not is optimal selection.Be utilize the active force between permanent magnet and ferromagnetic material to produce two steady states in the Novel electromagnetic clutch designed, carry out state switching by the method for energising.The switching mechanism of this bistable electromagnetic clutch is made up of clutch stator component and rotor part.Due to the symmetrical effect of circle configurations, the radial component of active force synthesizes zero, and axial component is relevant with the relative position of parts, and the active force of generation is called detenting force.Clutch operationally, corresponding start-up point, axial force suffered by movable part is very little, need to apply larger electric current, just can produce enough starting forces, and after starting up, the middle active force produced is excessive again, tens times of tripping force, and wayward, even can produce mechanical impact and noise.Therefore, this structure of existing clutch and this step mode need to improve, and really could meet the requirement of white domestic appliances consumption reduction noise reduction.
Summary of the invention
The object of this invention is to provide a kind of high efficiency bistable electromagnetic clutch, need to apply larger electric current in order to this structure and this step mode that solve existing clutch exist, just can produce enough starting forces, and after starting up, the middle active force produced is excessive again, is tens times of tripping force, wayward, even can produce mechanical impact and noise, and really can not meet the requirement of white domestic appliances consumption reduction noise reduction.
Described object is realized by following scheme: described a kind of high efficiency bistable electromagnetic clutch, is made up of mover, the first stator, the second stator;
Described mover is made up of upper disc magnet case, disc permanent magnet, lower disc magnet case, axis; The lower end surface of upper disc magnet case connects the upper-end surface of disc permanent magnet, and the lower end surface of disc permanent magnet connects the upper-end surface of lower disc magnet case; The circle center hole of the circle center hole of upper disc magnet case, the circle center hole of disc permanent magnet, lower disc magnet case is all socketed on axis; First stator and the second stator are all E type magnet case, and the middle conducting magnetic column of the first stator is inlaid with the first coil, and the middle conducting magnetic column of the second stator is inlaid with the second coil; First stator and the second stator are symmetricly set on the both sides of mover respectively; Mover is bottom time, the outer circumferential edge of upper disc magnet case is alignd with the gap, left side of conducting magnetic column in the middle of the right side of conducting magnetic column in the middle of the first stator, the second stator respectively, and the outer circumferential edge of lower disc magnet case is alignd with the gap, left side of conducting magnetic column under the right side of conducting magnetic column under the first stator, the second stator respectively; Mover is when the top, the outer circumferential edge of upper disc magnet case is alignd with the gap, left side of conducting magnetic column on the right side of conducting magnetic column on the first stator, the second stator respectively, and the outer circumferential edge of lower disc magnet case is alignd with the gap, left side of conducting magnetic column in the middle of the right side of conducting magnetic column in the middle of the first stator, the second stator respectively; Be provided with between the upper-end surface of the right side of the upper conducting magnetic column of the first stator and the upper conducting magnetic column of the first stator between chamfering, the right side of lower conducting magnetic column of the first stator and the lower end surface of the lower conducting magnetic column of the first stator and be provided with chamfering; Be provided with between the upper-end surface of the left side of the upper conducting magnetic column of the second stator and the upper conducting magnetic column of the second stator between chamfering, the left side of lower conducting magnetic column of the second stator and the lower end surface of the lower conducting magnetic column of the second stator and be provided with chamfering.
The present invention is applicable to the bistable electromagnetic clutch system that general precision requires, Direct driver for brshless DC motor and bistable electromagnetic clutch controls, have starting characteristic good, operate steadily, active force is even, structure is simple, with low cost, energy-conservation advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment one: as shown in Figure 1, it is made up of mover 1, first stator 2, second stator 3;
Described mover 1 is made up of upper disc magnet case 1-1, disc permanent magnet 1-2, lower disc magnet case 1-3, axis 1-4; The lower end surface of upper disc magnet case 1-1 connects the upper-end surface of disc permanent magnet 1-2, and the lower end surface of disc permanent magnet 1-2 connects the upper-end surface of lower disc magnet case 1-3; The circle center hole of the circle center hole of upper disc magnet case 1-1, the circle center hole of disc permanent magnet 1-2, lower disc magnet case 1-3 is all socketed on axis 1-4; First stator 2 and the second stator 3 are all E type magnet case, the middle conducting magnetic column of the first stator 2 are inlaid with the first coil 2-1, the middle conducting magnetic column of the second stator 3 are inlaid with the second coil 3-1; First stator 2 and the second stator 3 are symmetricly set on the both sides of mover 1 respectively; Mover 1 is bottom time, the outer circumferential edge of upper disc magnet case 1-1 is alignd with the right side of the middle conducting magnetic column of the first stator 2, the gap, left side of the middle conducting magnetic column of the second stator 3 respectively, and the outer circumferential edge of lower disc magnet case 1-3 is alignd with the right side of the first stator 2 times conducting magnetic columns, the gap, left side of the second stator 3 times conducting magnetic columns respectively; Mover 1 is when the top, the outer circumferential edge of upper disc magnet case 1-1 is alignd with the gap, left side of conducting magnetic column on the right side of conducting magnetic column on the first stator 2, the second stator 3 respectively, and the outer circumferential edge of lower disc magnet case 1-3 is alignd with the right side of the middle conducting magnetic column of the first stator 2, the gap, left side of the middle conducting magnetic column of the second stator 3 respectively; Be provided with between the upper-end surface of the right side of the upper conducting magnetic column of the first stator 2 and the upper conducting magnetic column of the first stator 2 between chamfering 2-2, the right side of lower conducting magnetic column of the first stator 2 and the lower end surface of the lower conducting magnetic column of the first stator 2 and be provided with chamfering 2-3; Be provided with between the upper-end surface of the left side of the upper conducting magnetic column of the second stator 3 and the upper conducting magnetic column of the second stator 3 between chamfering 3-2, the left side of lower conducting magnetic column of the second stator 3 and the lower end surface of the lower conducting magnetic column of the second stator 3 and be provided with chamfering 3-3.。
Working principle:
1, for stable state below.When stable position below mover 1 is in, magnet steel forms magnetic circuit by magnet case and conducting magnetic column 2.Now, under the effect of air-gap field, the conducting magnetic column on the conducting magnetic column of stator 2 top and bottom and mover 1 must be alignment.
2, be energized in coil 2-1 and 3-1, the Resultant magnetic field of generation can produce an axial force on mover 1, and mover 1 is moved upward, and this process is started exactly.By the time, when the conducting magnetic column on mover 1 aligns with the conducting magnetic column above on stator 2, just reach second stable state, mover secures with regard to position.At this moment power-off, the position of mover 1 also no longer changes.
3, in starting process, the axial electromagnetic force upwards of generation needs to overcome mover gravity, frictional force, the various load such as detent force.Usually, the electric current that leads to larger, the electromagnetic force of generation is larger, more easily starts.But rise after moving up, the active force of generation is tens times of starting force, makes mover 1 fast upward motion, may break through second stable equilibrium point.If use spacing measure, mechanical impact and noise will be produced.
4, in the design, mover, when first stable position, owing to there is chamfering 2-3 and 3-3, makes stable equilibrium point position is moved.During starting, due to stable equilibrium point having moved, be in more favourable initial position, therefore produced starting torque large equally, just do not need so large electric current.Therefore, after adopting the design, the more efficient more low noise of work of clutch.
5, when needing mover 1 to get back to first stable position from the stable position of second above, be energized equally but change current direction, the effect of generation is identical.
Claims (1)
1. a high efficiency bistable electromagnetic clutch, it is made up of mover (1), the first stator (2), the second stator (3);
Described mover (1) is made up of upper disc magnet case (1-1), disc permanent magnet (1-2), lower disc magnet case (1-3), axis (1-4); The lower end surface of upper disc magnet case (1-1) connects the upper-end surface of disc permanent magnet (1-2), and the lower end surface of disc permanent magnet (1-2) connects the upper-end surface of lower disc magnet case (1-3); The circle center hole of the circle center hole of upper disc magnet case (1-1), the circle center hole of disc permanent magnet (1-2), lower disc magnet case (1-3) is all socketed on axis (1-4); First stator (2) and the second stator (3) are all E type magnet case, the middle conducting magnetic column of the first stator (2) are inlaid with the first coil (2-1), the middle conducting magnetic column of the second stator (3) are inlaid with the second coil (3-1); First stator (2) and the second stator (3) are symmetricly set on the both sides of mover (1) respectively; Mover (1) is bottom time, the outer circumferential edge of upper disc magnet case (1-1) is alignd with the gap, left side of conducting magnetic column in the middle of the right side of conducting magnetic column in the middle of the first stator (2), the second stator (3) respectively, and the outer circumferential edge of lower disc magnet case (1-3) is alignd with the gap, left side of conducting magnetic column under the right side of conducting magnetic column under the first stator (2), the second stator (3) respectively; Mover (1) is when the top, the outer circumferential edge of upper disc magnet case (1-1) is alignd in the right side of conducting magnetic column upper with the first stator (2), the gap, left side of the upper conducting magnetic column of the second stator (3) respectively, and the outer circumferential edge of lower disc magnet case (1-3) is alignd with the right side of conducting magnetic column in the middle of the first stator (2), the gap, left side of the middle conducting magnetic column of the second stator (3) respectively; Be provided with between the upper-end surface that it is characterized in that the right side of the upper conducting magnetic column of the first stator (2) and the upper conducting magnetic column of the first stator (2) between chamfering (2-2), the right side of lower conducting magnetic column of the first stator (2) and the lower end surface of the lower conducting magnetic column of the first stator (2) and be provided with chamfering (2-3); Be provided with between the upper-end surface of the left side of the upper conducting magnetic column of the second stator (3) and the upper conducting magnetic column of the second stator (3) between chamfering (3-2), the left side of lower conducting magnetic column of the second stator (3) and the lower end surface of the lower conducting magnetic column of the second stator (3) and be provided with chamfering (3-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310093109.XA CN103148120B (en) | 2013-03-22 | 2013-03-22 | A kind of high efficiency bistable electromagnetic clutch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310093109.XA CN103148120B (en) | 2013-03-22 | 2013-03-22 | A kind of high efficiency bistable electromagnetic clutch |
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| CN103148120A CN103148120A (en) | 2013-06-12 |
| CN103148120B true CN103148120B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310093109.XA Active CN103148120B (en) | 2013-03-22 | 2013-03-22 | A kind of high efficiency bistable electromagnetic clutch |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109981851B (en) * | 2019-04-03 | 2021-06-04 | 维沃移动通信有限公司 | Mobile terminal and control method of mobile terminal |
| CN113002459A (en) * | 2021-03-18 | 2021-06-22 | 精进电动科技股份有限公司 | Control method of electromagnetic clutch in hybrid power system and hybrid power system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210288A (en) * | 2001-01-12 | 2002-07-30 | Hitachi Ltd | Fully automatic washing machine |
| CN1664393A (en) * | 2005-03-18 | 2005-09-07 | 陆永平 | Bistable electromagnetic clutch |
| CN101340137A (en) * | 2007-07-04 | 2009-01-07 | 刘新广 | Bi-stable magnetic clutch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100393802B1 (en) * | 2001-06-27 | 2003-08-02 | 엘지전자 주식회사 | Repulsion clutch apparatus for washing machine |
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2013
- 2013-03-22 CN CN201310093109.XA patent/CN103148120B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210288A (en) * | 2001-01-12 | 2002-07-30 | Hitachi Ltd | Fully automatic washing machine |
| CN1664393A (en) * | 2005-03-18 | 2005-09-07 | 陆永平 | Bistable electromagnetic clutch |
| CN101340137A (en) * | 2007-07-04 | 2009-01-07 | 刘新广 | Bi-stable magnetic clutch |
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| CN103148120A (en) | 2013-06-12 |
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