CN201918860U - Stator disk of disk type permanent magnet motors - Google Patents
Stator disk of disk type permanent magnet motors Download PDFInfo
- Publication number
- CN201918860U CN201918860U CN2011200280254U CN201120028025U CN201918860U CN 201918860 U CN201918860 U CN 201918860U CN 2011200280254 U CN2011200280254 U CN 2011200280254U CN 201120028025 U CN201120028025 U CN 201120028025U CN 201918860 U CN201918860 U CN 201918860U
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- Prior art keywords
- stator discs
- box
- heat conductive
- lead
- stator
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Abstract
A stator disk of a disk type permanent magnet motor comprises an insulated substrate and guide lines embedded in the insulated substrate. A part of guide lines arranged at an outer ring of the stator disk are exposed outside the insulated substrate, the outer ring of the stator disk is covered with a box in a loop mode filled with heat conductive insulated powders, the box is further provided with external conductive components capable of radiating outwards, the heat conductive insulated powders contact with the external conductive components and the part of guide lines exposed outside the insulated substrate, and the guide lines are out of touch with the external conductive components. The disk type permanent magnet motor can quickly radiate the heat produced on the stator disk during work, and has a structure which is easy to be manufactured. Meanwhile, the heat conductive insulated powders are soft fine powers so that insulated paint on the guide lines can not be abraded even after being used for a long time. Even if the guide lines have abrasion, short circuit accident can not be caused due to the insulativity of the powders.
Description
Technical field
The utility model relates to a kind of disc-type permanent magnet motor, relates in particular to the stator discs structure on the motor.
Background technology
The basic structure of the disc-type permanent magnet motor of double rotor single stator is stator discs of two rotor disk therebetween, the centre of stator discs is the zone of electromagnetic action, this zone is except copper conductor, can not place other any conductive materials, so general existing stator discs structure can be referring to shown in Figure 1, all be with epoxy resin as matrix 1 ＇, copper conductor is all shut fixing, forms a thin structure of coiling.The advantage of the disc-type permanent magnet motor of said structure is that stator does not have iron core, does not have ferromagnetic loss, thereby efficient is very high.
But because stator discs tightly is clipped in the middle of two rotor disks, the gap is very little, and convective heat transfer is extremely inconvenient, particularly in the web-type flywheel battery, owing to taken out vacuum, does not have heat loss through convection fully; And, extremely low as the thermal conductivity of the epoxy resin of stator discs matrix, have only 0.2W/ (m*K), so its heat-transfer capability is extremely low.In order to improve the heat-sinking capability of disc type electric machine stator, generally adopt the way that in epoxy resin, adds heat conductive insulating powder such as aluminium nitride, in order to improve the thermal conductivity of epoxy resin-base.
Yet still there is following weak point in above way: 1, thermal conductivity can only be brought up to about 2W/ (m*K) from 0.2W/ (m*K), still can not satisfy the needs that the heat on the stator discs of high-power disc type electric machine is distributed; 2, the method manufacturing process more complicated of above-mentioned raising thermal conductivity, because the viscosity of epoxy resin is very big, wettability is also bad, adds a large amount of heat conductive insulating powder more inside, is difficult to mix.
Summary of the invention
Main purpose of the present utility model is the technical problem that can not finely distribute for heat that stator discs when work that solves disc-type permanent magnet motor in the prior art produces.
In order to solve the problems of the technologies described above, the utility model provides a kind of stator discs of disc-type permanent magnet motor, comprise insulating body and be embedded therein lead, the part that described lead is positioned at described stator discs outer ring is exposed the outside at described insulating body, the outer ring ring set of described stator discs has an inside to pile with the box of heat conductive insulating powder, described box also has the external conducting piece that can outwards dispel the heat, described heat conductive insulating powder contacts with the part that described external conducting piece and described lead expose in described insulating body outside, and described lead does not contact with described external conducting piece.
Described stator discs, wherein, described heat conductive insulating powder is an aluminium nitride powder.
Described stator discs, wherein, described box is a can, contacts with described heat conductive insulating powder.
Described stator discs, wherein, described external conducting piece is sheet metal, metallic plate or the metal tube that can conduct heat to the external world, described sheet metal, metallic plate or metal tube can be arranged in the described box and with described heat conductive insulating powder and contact.
Described stator discs, wherein, described sheet metal, metallic plate or metal tube are near the exposed part of described lead.
Described stator discs, wherein, described metal tube inside is connected with cooling fluid.
Described stator discs, wherein, described insulating body is an epoxide resin material.
Described stator discs, wherein, described lead is a copper conductor.
Described stator discs, wherein, described box is the ring-type box.
The utlity model has following beneficial effect, the outer ring of the stator discs of disc-type permanent magnet motor of the present utility model is provided with the box of solid heat conductive insulating powder, and in conjunction with external conducting piece, thereby no matter whether motor internal is vacuum environment, the heat that all can be apace produced when working on the stator discs distributes; The technology of this structure is simple, only needs the heat conductive insulating pile of grounds with a box above-mentioned powder to be caught then on the exposed lead in stator discs outer ring, does not make it spill to get final product; And because the heat conductive insulating powder is soft fine powder, can not gall the insulating varnish on the lead when using for a long time, even slightly gall, because the insulating properties of powder can not lead to short circuit accident yet yet.
Description of drawings
Fig. 1 is the radial cross-section of the stator discs of existing disc-type permanent magnet motor.
Fig. 2 is the radial cross-section of the stator discs of disc-type permanent magnet motor of the present utility model.
Embodiment
The stator discs of disc-type permanent magnet motor of the present utility model can be applicable on the disc-type permanent magnet motor of double rotor single stator.In order to further specify principle of the present utility model and structure, now in conjunction with the accompanying drawings preferred embodiment of the present utility model is elaborated.
See also shown in Figure 2ly, the stator discs of disc-type permanent magnet motor of the present utility model comprises insulating body 1, lead 2 and a box 3.
Described insulating body 1 integral body is thin plate-like, and the material of described insulating body 1 can be epoxy resin.
Described lead 2 is embedded in described insulating body 1 and along the radial distribution of described stator discs, and the part that described lead 2 is arranged in described stator discs outer ring is exposed outside at described insulating body 1 (Fig. 2 has only indicated described lead 2 and exposed part in insulating body 1 outside).Described lead 2 can be copper conductor.
Described box 3 can be the ring-type box, with the outer ring of ring set in described stator discs, described box 3 inside have piled with heat conductive insulating powder 31, described box 3 also has the external conducting piece (not shown) that can outwards dispel the heat, described heat conductive insulating powder 31 can be aluminium nitride powder or other insulation and has the made powder of material of thermal conductive resin, described heat conductive insulating powder 31 contacts with the part that described external conducting piece and described lead 2 expose in insulating body 1 outside, and described lead 2 does not contact with described external conducting piece.The difference of following concrete structure according to box 3 and the external conducting piece that has thereof is enumerated several different embodiment and is described.
Embodiment one: the described box 3 in the present embodiment is for having the can of good heat-conductive characteristic, and it has the box wall 32 of metal, and described box wall 32 contacts with described heat conductive insulating powder 31, and this moment, externally conducting piece was described box wall 32.In the present embodiment, the heat of exposed lead 2 can conduct to described box wall 32 and pass to the casing outside by the heat transfer mechanism that links to each other with box by described heat conductive insulating powder 31 fast on the stator discs outer ring.And the heat in the middle of the stator discs also can be delivered on the lead 2 of stator discs outer ring, and then dispel the heat by preceding method fast by the thermal conductive resin of the lead in the middle of the stator discs 2 itself.
Embodiment two: the described box 3 in the present embodiment is made for the non-thermal conductivity material.Also be provided with sheet metal, metallic plate or the metal tube (not shown) that to conduct heat to the external world in the described box 3, described sheet metal, metallic plate or metal tube contact with described heat conductive insulating powder 31, and this moment, externally conducting piece was described sheet metal, metallic plate or metal tube.Described sheet metal, metallic plate or metal tube can expose part in insulating body 1 outside near described lead 2, but do not contact with described lead 2, to avoid that the worn-off of the insulating varnish of described lead 2 outsides is led to short circuit accident.In the time of the big cooling capacity of needs, can by to the method for the inner logical cooling fluid of described metal tube to extraneous flash heat transfer.In the present embodiment, the heat of exposed lead 2 can conduct to described sheet metal, metallic plate or metal tube and by radiator structure heat be passed to the casing outside by described heat conductive insulating powder 31 fast on the stator discs outer ring.And that how the heat in the middle of the stator discs is passed on the lead 2 of stator discs outer ring is identical with situation among the embodiment one, does not repeat them here.
The outer ring of the stator discs of disc-type permanent magnet motor of the present utility model is provided with the box of solid heat conductive insulating powder, and in conjunction with external conducting piece, thereby no matter whether motor internal is vacuum environment, the heat that all can be apace produced when working on the stator discs distributes; The technology of this structure is simple, only needs the heat conductive insulating pile of grounds with a box above-mentioned powder to be caught then on the exposed lead in stator discs outer ring, does not make it spill to get final product; And because the heat conductive insulating powder is soft fine powder, can not gall the insulating varnish on the lead when using for a long time, even slightly gall, because the insulating properties of powder can not lead to short circuit accident yet yet.
Yet; the above only is a preferable possible embodiments of the present utility model; and unrestricted protection range of the present utility model, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, all be included in the protection range of the present utility model.
Claims (9)
1. the stator discs of a disc-type permanent magnet motor, comprise insulating body and be embedded lead in described insulating body, it is characterized in that, the part that described lead is positioned at described stator discs outer ring is exposed the outside at described insulating body, the outer ring ring set of described stator discs has an inside to pile with the box of heat conductive insulating powder, described box also has the external conducting piece that can outwards dispel the heat, described heat conductive insulating powder contacts with the part that described external conducting piece and described lead expose in the insulating body outside, and described lead does not contact with described external conducting piece.
2. stator discs according to claim 1 is characterized in that, the heat conductive insulating powder is an aluminium nitride powder.
3. stator discs according to claim 1 is characterized in that, described box is a can, contacts with described heat conductive insulating powder.
4. stator discs according to claim 1, it is characterized in that, described external conducting piece is sheet metal, metallic plate or the metal tube that can conduct heat to the external world, and described sheet metal, metallic plate or metal tube are arranged in the described box and with described heat conductive insulating powder and contact.
5. stator discs according to claim 4 is characterized in that, described sheet metal, metallic plate or metal tube are near the exposed part of described lead.
6. stator discs according to claim 4 is characterized in that, described metal tube inside is connected with cooling fluid.
7. stator discs according to claim 1 is characterized in that, described insulating body is an epoxide resin material.
8. stator discs according to claim 1 is characterized in that, described lead is a copper conductor.
9. stator discs according to claim 1 is characterized in that, described box is the ring-type box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200280254U CN201918860U (en) | 2011-01-27 | 2011-01-27 | Stator disk of disk type permanent magnet motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200280254U CN201918860U (en) | 2011-01-27 | 2011-01-27 | Stator disk of disk type permanent magnet motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918860U true CN201918860U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200280254U Expired - Fee Related CN201918860U (en) | 2011-01-27 | 2011-01-27 | Stator disk of disk type permanent magnet motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324818A (en) * | 2011-09-30 | 2012-01-18 | 武汉振兴天帝机电有限公司 | Multi-magnetic circuit disk type motor |
| CN102355099A (en) * | 2011-09-30 | 2012-02-15 | 武汉振兴天帝机电有限公司 | Multi-magnetic circuit disc type generator |
| CN102624173A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Stator disc of permanent magnet disc motor |
-
2011
- 2011-01-27 CN CN2011200280254U patent/CN201918860U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624173A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Stator disc of permanent magnet disc motor |
| CN102324818A (en) * | 2011-09-30 | 2012-01-18 | 武汉振兴天帝机电有限公司 | Multi-magnetic circuit disk type motor |
| CN102355099A (en) * | 2011-09-30 | 2012-02-15 | 武汉振兴天帝机电有限公司 | Multi-magnetic circuit disc type generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |