CN204794612U - Low -loss squirrel cage cast aluminium rotor - Google Patents
Low -loss squirrel cage cast aluminium rotor Download PDFInfo
- Publication number
- CN204794612U CN204794612U CN201520487236.2U CN201520487236U CN204794612U CN 204794612 U CN204794612 U CN 204794612U CN 201520487236 U CN201520487236 U CN 201520487236U CN 204794612 U CN204794612 U CN 204794612U
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- rotor
- cast aluminium
- loss
- sliver
- copper
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- Expired - Fee Related
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Abstract
The utility model belongs to asynchronous machine makes the field. For solving the big technical problem of present squirrel cage cast aluminium rotor loss, the utility model provides a low -loss squirrel cage cast aluminium rotor, this rotor are piled up by the rotor punching and form, and the jet -bedding coincide on each rotor punching forms rotor groove, its characterized in that: the rotor inslot inlay and have the copper conducting bar, the space between copper conducting bar and the rotor groove is passed through the cast aluminium operation and is formed the cast aluminium conducting bar. The beneficial effects of the utility model are that: have lower resistivity and lower rotor active loss for traditional cast aluminium rotor, with cast copper rotor comparison simple process, conveniently realize the industrialization. Adjust simultaneously the proportional relation of copper conducting bar area and cast aluminium conducting bar area as required, product cost is rationally controlled to adjustment resistivity size under the prerequisite that reduces rotor active loss.
Description
Technical field
The utility model belongs to asynchronous machine and manufactures field, specifically refers to a kind of low-loss mouse cage cast aluminium rotor.
Background technology
Current domestic asynchronous machine rotor mostly is cast-in aluminum squirrel cage type, this kind of rotor be stamping-out is had specific grooved, the rotor punching of specified channel number builds up iron core, then form the cavity filling aluminum liquid casting that rotor is formed.In the running of motor, always can some active loss, in cast-aluminum rotor, namely show as aluminium consumption.For manufacturing, there is more high efficiency motor, need to reduce rotor active loss further, domestic have the cast copper adopting low-resistivity to replace cast aluminium, copper casting rotor significantly reduces relative to cast-aluminum rotor loss, but cast copper is compared with aluminum process is complicated, difficulty is large, die life is short, realize industrialization difficulty very large, in the general manufacture only for specific model motor.
Summary of the invention
For solving the large technical problem of current mouse cage cast aluminium rotor loss, the utility model is devoted to provide a kind of mouse cage cast aluminium rotor of improvement to reach low-loss technical purpose.
For realizing above-mentioned technical purpose, the technical solution adopted in the utility model is: a kind of low-loss mouse cage cast aluminium rotor, this rotor forms by rotor punching is stacking, jet-bedding on each rotor punching is built up rotor, it is characterized in that: be inlaid with copper sliver in described rotor, the space between copper sliver and rotor is operated by cast aluminium and forms cast aluminium sliver.
Further, the length of described copper sliver is greater than the stacking formed rotor length of rotor punching, and the two ends extension of copper sliver is wrapped to form rotor end ring by aluminium.
Further, the extension at described copper sliver two ends is provided with translot or annular groove.
Further, described copper sliver cross section and the transversal area ratio of aluminium sliver are: 1:2.5-2:1.
Further, described copper sliver is positioned at the middle and upper part in rotor short transverse.
The beneficial effects of the utility model are: have lower resistivity and lower rotor active loss relative to traditional cast-aluminum rotor, compare technique simply, conveniently realize industrialization with copper casting rotor.Adjust the proportionate relationship of copper sliver area and cast aluminium sliver area as required, adjusting resistance rate size, conservative control product cost under the prerequisite reducing rotor active loss simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is structure cutaway view of the present utility model.
Accompanying drawing 2 is the structural representation of copper sliver.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of low-loss mouse cage cast aluminium rotor, this rotor 1 forms by rotor punching is stacking, jet-bedding on each rotor punching is built up rotor (rotor in accompanying drawing 1 is filled by cast aluminium sliver and copper sliver), in rotor, be inlaid with copper sliver 2, the space between copper sliver 2 and rotor is operated by cast aluminium and forms cast aluminium sliver 3.
As shown in Figure 1, the length of copper sliver 2 is greater than the stacking formed rotor length of rotor punching, and the two ends extension of copper sliver is wrapped to form rotor end ring 4 by aluminium.
As shown in Figure 2, for improving the contact area of copper sliver end and aluminium end ring, increasing copper sliver 2 and the bonding strength of rotor end ring 4, the extension at copper sliver two ends is provided with translot or annular groove 21.
The cast-aluminum rotor of mouse cage cast aluminium rotor in appearance with traditional adopting technique scheme to manufacture is consistent, but rotor resistance can be made to be declined to a great extent owing to being provided with copper sliver in rotor, the favourable active loss reducing rotor.Complex process existing when simultaneously adopting this technical scheme also to solve to carry out at present cast copper operation, the technical problem that difficulty is large, die life is short.
As shown in Figure 1, when arranging copper sliver, copper sliver 2 being arranged on the middle and upper part in rotor short transverse as far as possible, making copper sliver 2 as far as possible near rotor surface, thus reducing vortes interference, reducing active loss.
Volume shared by certain rotor buried copper sliver 2 is more of value to more greatly the raising of rotor performance, but in process of production, also conservative control product cost is answered under the prerequisite reducing rotor active loss, in actual production, the proportionate relationship of adjustable copper sliver and cast aluminium sliver as required, with adjusting resistance rate size, usually copper sliver cross section and the transversal area ratio of aluminium sliver are controlled be: between 1:2.5-2:1.
Claims (5)
1. a low-loss mouse cage cast aluminium rotor, this rotor forms by rotor punching is stacking, jet-bedding on each rotor punching is built up rotor, it is characterized in that: be inlaid with copper sliver in described rotor, and the space between copper sliver and rotor is operated by cast aluminium and forms cast aluminium sliver.
2. the low-loss mouse cage cast aluminium rotor of one according to claim 1, is characterized in that: the length of described copper sliver is greater than the stacking formed rotor length of rotor punching, and the two ends extension of copper sliver is wrapped to form rotor end ring by aluminium.
3. the low-loss mouse cage cast aluminium rotor of one according to claim 2, is characterized in that: the extension at described copper sliver two ends is provided with translot or annular groove.
4. the low-loss mouse cage cast aluminium rotor of one according to claim 1, is characterized in that: described copper sliver cross section and the transversal area ratio of aluminium sliver are: 1:2.5-2:1.
5. the low-loss mouse cage cast aluminium rotor of one according to claim 1, is characterized in that: described copper sliver is positioned at the middle and upper part in rotor short transverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487236.2U CN204794612U (en) | 2015-07-08 | 2015-07-08 | Low -loss squirrel cage cast aluminium rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487236.2U CN204794612U (en) | 2015-07-08 | 2015-07-08 | Low -loss squirrel cage cast aluminium rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794612U true CN204794612U (en) | 2015-11-18 |
Family
ID=54534587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520487236.2U Expired - Fee Related CN204794612U (en) | 2015-07-08 | 2015-07-08 | Low -loss squirrel cage cast aluminium rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794612U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787554A (en) * | 2017-02-24 | 2017-05-31 | 徐州大元电机有限公司 | A kind of high efficiency composition cage bar motor rotor and preparation method thereof |
| CN107834800A (en) * | 2017-11-08 | 2018-03-23 | 卧龙电气集团股份有限公司 | One kind is without controller self-starting permanent magnetism assist in synchronization reluctance motor |
| CN108023454A (en) * | 2018-01-26 | 2018-05-11 | 湖北工业大学 | A kind of New-type asynchronous starts ferrite permanent-magnet assist type reluctance-synchronous machine |
| CN112072810A (en) * | 2020-08-25 | 2020-12-11 | 广州市昊志机电股份有限公司 | Copper-aluminum composite rotor, aluminum casting mold and manufacturing method thereof |
-
2015
- 2015-07-08 CN CN201520487236.2U patent/CN204794612U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787554A (en) * | 2017-02-24 | 2017-05-31 | 徐州大元电机有限公司 | A kind of high efficiency composition cage bar motor rotor and preparation method thereof |
| CN107834800A (en) * | 2017-11-08 | 2018-03-23 | 卧龙电气集团股份有限公司 | One kind is without controller self-starting permanent magnetism assist in synchronization reluctance motor |
| CN108023454A (en) * | 2018-01-26 | 2018-05-11 | 湖北工业大学 | A kind of New-type asynchronous starts ferrite permanent-magnet assist type reluctance-synchronous machine |
| CN112072810A (en) * | 2020-08-25 | 2020-12-11 | 广州市昊志机电股份有限公司 | Copper-aluminum composite rotor, aluminum casting mold and manufacturing method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20200708 |