CN203632502U - Large-power coreless motor having heat conduction structure - Google Patents
Large-power coreless motor having heat conduction structure Download PDFInfo
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- CN203632502U CN203632502U CN201320863468.4U CN201320863468U CN203632502U CN 203632502 U CN203632502 U CN 203632502U CN 201320863468 U CN201320863468 U CN 201320863468U CN 203632502 U CN203632502 U CN 203632502U
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Abstract
The utility model discloses a large-power coreless motor having heat conduction structure. Two sides of the motor form an mirror image structure; each side of the motor comprises a motor inner rotor, a motor stator, a motor outer rotor and a motor inner and outer rotor support; the motor outer rotors and the motor inner rotors are installed on the motor inner and outer rotor supports; the motor stators are located between the motor outer rotors and the motor inner rotors; the motor outer rotors, the motor stators, the motor inner rotors and gaps form closed magnetic circuits; each motor stator comprises a motor stator skeleton, a motor stator skeleton locking ring, a motor stator coil, a motor stator skeleton fixing disc and a heat conduction resin; each motor outer rotor comprises a motor outer rotor core and a motor outer rotor magnetic steel; and each motor inner rotor is a pure motor inner rotor magnetic conductive iron core. The large-power coreless motor has the advantages of more reasonable heat-conduction structure and more easily reduced temperature.
Description
Technical field
The utility model relates to machine field, is specifically related to a kind of high-power hollow-cup motor of conductive structure.
Background technology
Hollow-cup motor belongs to direct current permanent magnet motor.Hollow-cup motor has outstanding energy conservation characteristic, sensitive control characteristic easily and stable operation characteristic, as high efficiency energy conversion device, has represented the developing direction of high-speed electric expreess locomotive.
Brushless hollow-cup motor has structurally been broken through the stator structure form of conventional motors, employing be non iron-core stator.Inner and outer rotors structure, internal rotor and external rotor are arranged on synchronous rotary on same device.The structure of this novelty has thoroughly been eliminated stator core loss, is more suitable for doing high-frequency electric machines, in addition, because stator skeleton is insulation non-magnet_conductible material, thus be equivalent to slotless structure, in the time that rotor high-speed rotates, just can not there is cogging torque and slot ripples, rotor be rotated more steady.
But because motor stator does not have iron core, and common hollow-cup motor stator skeleton mostly is insulation non-magnet_conductible material, make the heat of coil of stator of motor have no idea to shed, power of motor is larger, the caloric value of coil is larger, and this has just limited the development of hollow-cup motor toward high-power direction.So the heat radiation that how to solve hollow-cup motor is to make its key issue to high-power future development.
Utility model content
Based on above weak point, the utility model provides a kind of high-power hollow-cup motor of conductive structure, and the utility model can overcome existing brushless hollow-cup motor and limit its problem to high-power future development because stator coil heat cannot shed.
The purpose of this utility model is achieved through the following technical solutions:
A kind of high-power hollow-cup motor of conductive structure, both sides are mirror-image structure, every side comprises motor internal rotor, motor stator, motor outer rotor and motor inner and outer rotors support, motor outer rotor and motor internal rotor are arranged on motor inner and outer rotors support, motor stator is between motor outer rotor and motor internal rotor, motor outer rotor, motor stator, motor internal rotor and air gap form closed magnetic circuit, described motor stator comprises skeleton of stator of motor, skeleton of stator of motor binding ring, coil of stator of motor, skeleton of stator of motor fixed disk and heat-conducting resin, skeleton of stator of motor interference fit is on skeleton of stator of motor fixed disk, and with the fastening skeleton of stator of motor of skeleton of stator of motor binding ring, coil of stator of motor is inlaid in the wire casing of skeleton of stator of motor, tile on skeleton of stator of motor fixed disk in the leading-out terminal end of coil of stator of motor, make coil of stator of motor and skeleton of stator of motor fixed disk close contact, coil of stator of motor is outside with the embedding of heat-conducting resin entirety, described motor outer rotor comprises motor outer rotor iron core and motor outer rotor magnet steel, motor outer rotor magnet steel is fixed on motor outer rotor iron core, described motor internal rotor is simple motor internal rotor magnetic conductive iron.
Principle of the present utility model is: due to hollow-cup motor stator non iron-core, and inner and outer rotors synchronous rotary, so there is not eddy current loss on rotor, therefore the heat of motor is mainly from the copper loss of stator coil.This utility model is be mainly close on stator skeleton fixed disk and used heat-conducting resin embedding by stator coil leading-out terminal end, the heat of coil is derived by the good metal fixed disk of heat conductivility, conduct to body by fixed disk again, finish lead end region temperature is reduced, stator coil non-leading-out terminal end and middle part conduct heat to finish lead end by the good heat conductive performance of copper cash, and the overall temperature rise of coil will reduce like this.Along with the increase of power of motor, the caloric value of coil increases, and can cooling water channel be set on stator fixed disk and carry out water-cooling.Stator skeleton fixed disk must be selected the not metal material of magnetic conduction, low conductivity, the eddy current loss producing to reduce stray magnetic field.
The beneficial effects of the utility model:
The high-power hollow-cup motor of a kind of conductive structure that the utility model provides, compared with the hollow-cup motor of traditional conductive structure, the conductive structure of motor is more reasonable, and temperature more easily reduces.Tradition hollow-cup motor is mostly following several heat-conducting mode, and the pure aluminium nitride powder that adds in skeleton of stator of motor that leans against the outer embedding heat-conducting resin of coil of stator of motor, also has that leans on heat loss through radiation, have having carries out heat conduction.The utility model is by coil of stator of motor and metal fixed disk close contact, and the heat of coil is transmitted on metal fixed disk and is derived, and is by metal heat-conducting.The conductive coefficient of high temperature heat-conducting resin is 1.3～1.5W/ (m.k), and the conductive coefficient of metal is mostly more than 10.So compare the well a lot of of other with metal heat-conducting under same case, after power of motor increases, can also cooling water channel be set on metal fixed disk and carry out water-cooled.So this utility model makes the hollow-cup motor can be to more high-power future development.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
Embodiment 1
A kind of high-power hollow-cup motor of conductive structure, comprise motor internal rotor, motor stator, motor outer rotor and motor inner and outer rotors support 9, motor outer rotor and motor internal rotor are arranged on motor inner and outer rotors support 9, motor stator is between motor outer rotor and motor internal rotor, motor outer rotor, motor stator, motor internal rotor and air gap form closed magnetic circuit, described motor stator comprises skeleton of stator of motor 1, skeleton of stator of motor binding ring 2, coil of stator of motor 3, skeleton of stator of motor fixed disk 4 and heat-conducting resin 5, skeleton of stator of motor 1 is arranged on motor skeleton fixed disk 4 in the mode of interference fit, and with the fastening skeleton of stator of motor 1 of skeleton of stator of motor binding ring 2, coil of stator of motor 3 is inlaid in the wire casing of skeleton of stator of motor 1, tile on skeleton of stator of motor fixed disk 4 in the leading-out terminal end of coil of stator of motor 3, make coil of stator of motor 3 and skeleton of stator of motor fixed disk 4 close contacts, coil of stator of motor 3 is outside with the overall embedding of heat-conducting resin 5, described motor outer rotor comprises motor outer rotor unshakable in one's determination 6 and motor outer rotor magnet steel 7, motor outer rotor magnet steel 7 sticks on motor outer rotor iron core 6, described motor internal rotor is simple motor internal rotor magnetic conductive iron 8.
Described skeleton of stator of motor fixed disk and skeleton of stator of motor binding ring all adopt magnetic conduction not, material that resistivity is large to make; Described heat-conducting resin is fire resistant epoxy type heat-conducting glue; Described motor outer rotor iron core and motor internal rotor iron core all adopt the material that magnetic property is good; Described motor inner and outer rotors support adopts not magnetic conductive metal material to make.
Embodiment 2
After coil of stator of motor is installed on skeleton of stator of motor, finish lead end wants entirety tiling in the groove of skeleton of stator of motor fixed disk, and end winding is fully contacted with fixed disk, and the heat of coil is derived by stator fixed disk.Skeleton of stator of motor fixed disk and skeleton of stator of motor binding ring are all used the not metal material of magnetic conduction, high resistivity, as 1Cr18Ni9Ti (ρ=0.73 Ω/m
7), 0Cr23Ni13Ti (ρ=0.78 Ω/m
7) etc., after coil of stator of motor setting-in is complete, at the outside embedding heat-conducting resin of coil, to increase the horizontal capacity of heat transmission of coil.Heat-conducting resin can be used fire resistant epoxy type heat-conducting glue ZB6258, ZB6208 etc., motor outer rotor iron core and motor internal rotor iron core all adopt the material that magnetic property is good, as laminating, make any one in 1J50,1J79,1J22, silicon steel sheet or amorphous, motor inner and outer rotors support adopts not magnetic conductive metal material to make, as 1Cr18Ni9Ti etc.
Claims (1)
1. the high-power hollow-cup motor of a conductive structure, motor both sides are mirror-image structure, every side comprises motor internal rotor, motor stator, motor outer rotor and motor inner and outer rotors support (9), it is characterized in that: motor outer rotor and motor internal rotor are arranged on motor inner and outer rotors support (9), motor stator is between motor outer rotor and motor internal rotor, motor outer rotor, motor stator, motor internal rotor and air gap form closed magnetic circuit, described motor stator comprises skeleton of stator of motor (1), skeleton of stator of motor binding ring (2), coil of stator of motor (3), skeleton of stator of motor fixed disk (4) and heat-conducting resin (5), skeleton of stator of motor (1) interference fit is on motor skeleton fixed disk (4), and with the fastening skeleton of stator of motor of skeleton of stator of motor binding ring (2) (1), coil of stator of motor (3) is inlaid in the wire casing of skeleton of stator of motor (1), tile on skeleton of stator of motor fixed disk (4) in the leading-out terminal end of coil of stator of motor (3), make coil of stator of motor (3) and skeleton of stator of motor fixed disk (4) close contact, coil of stator of motor (3) is outside with the overall embedding of heat-conducting resin (5), described motor outer rotor comprises motor outer rotor iron core (6) and motor outer rotor magnet steel (7), motor outer rotor magnet steel (7) is fixed on motor outer rotor iron core (7), described motor internal rotor is simple motor internal rotor magnetic conductive iron (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863468.4U CN203632502U (en) | 2013-12-26 | 2013-12-26 | Large-power coreless motor having heat conduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863468.4U CN203632502U (en) | 2013-12-26 | 2013-12-26 | Large-power coreless motor having heat conduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632502U true CN203632502U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863468.4U Expired - Fee Related CN203632502U (en) | 2013-12-26 | 2013-12-26 | Large-power coreless motor having heat conduction structure |
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| CN (1) | CN203632502U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753274A (en) * | 2013-12-26 | 2015-07-01 | 北京奇峰聚能科技有限公司 | High-power coreless motor with heat conducting structure |
| CN108092435A (en) * | 2018-01-10 | 2018-05-29 | 上海硅泰电子有限公司 | Stator core winding unit, stator module and disc type electric machine |
| CN108964308A (en) * | 2018-06-21 | 2018-12-07 | 东南大学 | A kind of large inertia external rotor permanent magnetic brushless DC electric machine |
| US20190222084A1 (en) * | 2018-01-12 | 2019-07-18 | Carrier Corporation | Electromagnetic machine |
-
2013
- 2013-12-26 CN CN201320863468.4U patent/CN203632502U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753274A (en) * | 2013-12-26 | 2015-07-01 | 北京奇峰聚能科技有限公司 | High-power coreless motor with heat conducting structure |
| CN108092435A (en) * | 2018-01-10 | 2018-05-29 | 上海硅泰电子有限公司 | Stator core winding unit, stator module and disc type electric machine |
| US20190222084A1 (en) * | 2018-01-12 | 2019-07-18 | Carrier Corporation | Electromagnetic machine |
| US10958123B2 (en) * | 2018-01-12 | 2021-03-23 | Carrier Corporation | Electromagnetic machine |
| CN108964308A (en) * | 2018-06-21 | 2018-12-07 | 东南大学 | A kind of large inertia external rotor permanent magnetic brushless DC electric machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100075 Beijing City, Dongcheng District Shazikou Road, No. 70 hospital south building three layer Patentee after: Beijing Qifeng Energy Technology Co., Ltd. Address before: 100010 Beijing city Dongcheng District Dongsi before Hanhai Technology Building No. 33 alley six layer Stir-Fried Noodles with Vegetables Patentee before: Beijing Qifeng Energy Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Mu Lijuan Document name: Notice of termination of patent |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20191226 |