CN204425118U - For the dynamo oil air-cooled structure of electric automobile - Google Patents
For the dynamo oil air-cooled structure of electric automobile Download PDFInfo
- Publication number
- CN204425118U CN204425118U CN201520023171.6U CN201520023171U CN204425118U CN 204425118 U CN204425118 U CN 204425118U CN 201520023171 U CN201520023171 U CN 201520023171U CN 204425118 U CN204425118 U CN 204425118U
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- Prior art keywords
- oil
- support
- communicated
- end cap
- rear end
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a kind of dynamo oil air-cooled structure for electric automobile, namely this structure is respectively equipped with the oil duct be communicated with at electric machine stand, front end housing and rear end cap, the oil duct of support is communicated with support inner chamber and connected entrance is positioned at the interstitial site of described stator core yoke portion and support inner ring, front end housing is communicated with fore bearing and rear bearing respectively with the oil duct of rear end cap, oil inlet pipe to be located in the middle part of support outer ring and to be communicated with oil duct and the support inner chamber of support, and flowline is located at the lateral surface of front end housing and rear end cap and is communicated with support inner chamber.This structure is by appropriate design cooling oil duct, and improve the cooling effect of motor, it is rational in infrastructure, easy for installation, ensure that the power stage of motor, improves motor useful life.
Description
Technical field
The utility model relates to a kind of dynamo oil air-cooled structure for electric automobile.
Background technology
Motor is related to vehicle performance and the traffic safety of electric automobile, can produce a large amount of heats during machine operation, must be left in time, otherwise the joint temperature of electric elements exceedes the maximum temperature of allowing, meeting limiting motor maximum power output and working life, even there will be the faults such as burn-down of electric motor.Usual motor cooling adopts air-cooled or water-cooled, and the thermal capacity of wind is less, and heat-sinking capability is limited, and the power density of ventilated machine is done not high; The thermal capacity of water is large, but water dielectric properties is poor, can not as direct coolant, and motor can only cool as indirect water-cooling wall.The thermal capacity of oil is comparatively large, and the dielectric properties had, be a kind of more satisfactory direct coolant, but oil itself exists viscosity, in agitation, multithread layer can produce interior frictional heating.The design of motor cooling oil duct is unreasonable, there will be oil to contact with heater members and insufficiently can not effectively take away device heat, or the interior friction of aggravation cold oil, the cooling effect of motor is poor, even there will be temperature to go up not down, therefore, in oil-cooled motor, the design rationality of cooling oil duct is most important to cooling.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of dynamo oil air-cooled structure for electric automobile, and this structure, by appropriate design cooling oil duct, improves the cooling effect of motor, it is rational in infrastructure, easy for installation, ensure that the power stage of motor, improve motor useful life.
For solving the problems of the technologies described above, the dynamo oil air-cooled structure that the utility model is used for electric automobile comprises support, front end housing, rear end cap, stator core, rotating shaft, rotor field spider, rotor core, fore bearing and rear bearing, described stator core is located at described support inner ring by alignment pin and bolt, described front end housing and rear end cap are located at two end faces of described support and are positioned at the two ends of described stator core, the outer ring of described fore bearing and rear bearing is located in the axis hole of described front end housing and rear end cap respectively, the inner ring of described fore bearing and rear bearing is located at described rotating shaft two ends, described rotor field spider inner ring is located in the middle part of described rotating shaft, described rotor core is located at described rotor field spider outer ring, this structure also comprises oil inlet pipe and flowline, described support, front end housing and rear end cap are respectively equipped with the oil duct be communicated with, the oil duct of described support is communicated with described support inner chamber and connected entrance is positioned at the interstitial site of described stator core yoke portion and support inner ring, described front end housing is communicated with described fore bearing and rear bearing respectively with the oil duct of rear end cap, described oil inlet pipe to be located in the middle part of described support outer ring and to be communicated with oil duct and the support inner chamber of described support, and described flowline is located at the lateral surface of described front end housing and rear end cap and is communicated with described support inner chamber.
Further, this structure also comprises some oil sealings, and described some oil sealings are located between described front end housing and rotating shaft and between rear end cap and rotating shaft respectively.
Further, this structure also comprises sight glass, and the end face of described front end housing and rear end cap is located at by described sight glass.
The dynamo oil air-cooled structure being used for electric automobile due to the utility model have employed technique scheme, namely this structure is respectively equipped with the oil duct be communicated with at electric machine stand, front end housing and rear end cap, the oil duct of support is communicated with support inner chamber and connected entrance is positioned at the interstitial site of described stator core yoke portion and support inner ring, front end housing is communicated with fore bearing and rear bearing respectively with the oil duct of rear end cap, oil inlet pipe to be located in the middle part of support outer ring and to be communicated with oil duct and the support inner chamber of support, and flowline is located at the lateral surface of front end housing and rear end cap and is communicated with support inner chamber.This structure is by appropriate design cooling oil duct, and improve the cooling effect of motor, it is rational in infrastructure, easy for installation, ensure that the power stage of motor, improves motor useful life.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the dynamo oil air-cooled structure schematic diagram of the utility model for electric automobile.
Embodiment
Embodiment as shown in Figure 1, the dynamo oil air-cooled structure that the utility model is used for electric automobile comprises support 1, front end housing 2, rear end cap 3, stator core 4, rotating shaft 5, rotor field spider 6, rotor core 7, fore bearing 8 and rear bearing 9, described stator core 4 is located at described support 1 inner ring by alignment pin 41 and bolt 42, described front end housing 2 and rear end cap 3 are located at two end faces of described support 1 and are positioned at the two ends of described stator core 4, the outer ring of described fore bearing 8 and rear bearing 9 is located in the axis hole of described front end housing 2 and rear end cap 3 respectively, the inner ring of described fore bearing 8 and rear bearing 9 is located at described rotating shaft 5 two ends, described rotor field spider 6 inner ring is located in the middle part of described rotating shaft 5, described rotor core 7 is located at described rotor field spider 6 outer ring, this structure also comprises oil inlet pipe 11 and flowline 12, described support 1, front end housing 2 and rear end cap 3 are respectively equipped with the oil duct 13 be communicated with, 21, 31, the oil duct 13 of described support 1 is communicated with described support 1 inner chamber and connected entrance is positioned at the interstitial site of described stator core 4 yoke portion and support 1 inner ring, the oil duct 21 of described front end housing 2 and rear end cap 3, 31 are communicated with described fore bearing 8 and rear bearing 9 respectively, described oil inlet pipe 11 to be located in the middle part of described support 1 outer ring and to be communicated with oil duct 13 and support 1 inner chamber of described support 1, described flowline 12 is located at the lateral surface of described front end housing 2 and rear end cap 3 and is communicated with described support 1 inner chamber.
On the basis of embodiment 1, preferably, this structure also comprises some oil sealings 51, and described some oil sealings 51 are located between described front end housing 2 and rotating shaft 5 and between rear end cap 3 and rotating shaft 5 respectively.Some oil sealings provide effective sealing to support inner chamber, ensure the circulation of cold oil at support inner chamber.
Preferably, this structure also comprises sight glass 14, and the end face of described front end housing 2 and rear end cap 3 is located at by described sight glass 14.By sight glass observable support inner chamber cold oil and mist of oil circulation situation, the cooling effect grasping motor directly perceived.
In this structure there is gap in support inner ring and stator core yoke portion, this gap forms the radial cooling oil duct of annular, two ends, stator core yoke portion are the cooling oil duct of arc simultaneously, more than form the oil cooling gallery of motor stator, the oil cooling gallery of cold oil along motor stator when oil inlet pipe enters support inner chamber circulates, flow out support finally by the flowline being located at front end housing and rear end cap, this process cold oil realizes effective cooling to motor stator; The oil duct of support is communicated with fore bearing and rear bearing through front end housing with the oil duct of rear end cap in addition, more than form the oil cooling gallery of rotor, the part cold oil entered from oil inlet pipe lubricates fore bearing and rear bearing through the oil cooling gallery of rotor, rolling and centrifugal effect due to bearing ball simultaneously, cooling oil can become mist of oil and be thrown on rotor field spider, along with the rotation of rotor, mist of oil on rotor field spider imports support inner chamber, flow out support finally by the flowline being located at front end housing and rear end cap, this process cold oil realizes effective cooling to rotor.Therefore the motor stator oil cooling gallery of this structure and the oil cooling gallery of rotor form the oil cooling system of whole motor, realize the oil cooling cooling of whole motor.
This structure is passed through at motor internal appropriate design cooling oil duct, form the cooling path of space multistory in motor, realize the effective cooling to motor stator and rotor, the operating temperature rise of stators and rotators during effective reduction motor high speed, and the working temperature of bearing, improve the stability that motor runs, solve the problem of motor bearing lubrication, and significantly reduce the rotor axial temperature difference, and then the impact that weakening rotor brings to motor because of thermal stress distribution imbalance, ensure that the power stage of motor, improve motor useful life.
Claims (3)
1. the dynamo oil air-cooled structure for electric automobile, comprise support, front end housing, rear end cap, stator core, rotating shaft, rotor field spider, rotor core, fore bearing and rear bearing, described stator core is located at described support inner ring by alignment pin and bolt, described front end housing and rear end cap are located at two end faces of described support and are positioned at the two ends of described stator core, the outer ring of described fore bearing and rear bearing is located in the axis hole of described front end housing and rear end cap respectively, the inner ring of described fore bearing and rear bearing is located at described rotating shaft two ends, described rotor field spider inner ring is located in the middle part of described rotating shaft, described rotor core is located at described rotor field spider outer ring, it is characterized in that: this structure also comprises oil inlet pipe and flowline, described support, front end housing and rear end cap are respectively equipped with the oil duct be communicated with, the oil duct of described support is communicated with described support inner chamber and connected entrance is positioned at the interstitial site of described stator core yoke portion and support inner ring, described front end housing is communicated with described fore bearing and rear bearing respectively with the oil duct of rear end cap, described oil inlet pipe to be located in the middle part of described support outer ring and to be communicated with oil duct and the support inner chamber of described support, described flowline is located at the lateral surface of described front end housing and rear end cap and is communicated with described support inner chamber.
2. the dynamo oil air-cooled structure for electric automobile according to claim 1, is characterized in that: this structure also comprises some oil sealings, and described some oil sealings are located between described front end housing and rotating shaft and between rear end cap and rotating shaft respectively.
3. the dynamo oil air-cooled structure for electric automobile according to claim 1, it is characterized in that: this structure also comprises sight glass, the end face of described front end housing and rear end cap is located at by described sight glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023171.6U CN204425118U (en) | 2015-01-14 | 2015-01-14 | For the dynamo oil air-cooled structure of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023171.6U CN204425118U (en) | 2015-01-14 | 2015-01-14 | For the dynamo oil air-cooled structure of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204425118U true CN204425118U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023171.6U Expired - Fee Related CN204425118U (en) | 2015-01-14 | 2015-01-14 | For the dynamo oil air-cooled structure of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204425118U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994709A (en) * | 2018-01-17 | 2018-05-04 | 明程电机技术（深圳）有限公司 | Machine shaft and evaporation cooling shaft type oil-cooled motor |
| CN108512363A (en) * | 2018-04-10 | 2018-09-07 | 浙江兴轮电驱动有限公司 | A kind of oil-cooled motor |
| CN108574371A (en) * | 2017-03-10 | 2018-09-25 | 卓伦有限两合公司 | Motor with integrated form parking brake |
| CN108933497A (en) * | 2017-05-24 | 2018-12-04 | 明程电机技术（深圳）有限公司 | cooling motor |
| CN109194035A (en) * | 2018-09-04 | 2019-01-11 | 恒大法拉第未来智能汽车（广东）有限公司 | Motor with oil cooled system system |
| CN112615484A (en) * | 2020-11-30 | 2021-04-06 | 合肥巨一动力***有限公司 | Oil-cooled motor structure |
| CN112821685A (en) * | 2021-02-23 | 2021-05-18 | 江西江特电机有限公司 | Design method for saving axial space of motor |
-
2015
- 2015-01-14 CN CN201520023171.6U patent/CN204425118U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574371A (en) * | 2017-03-10 | 2018-09-25 | 卓伦有限两合公司 | Motor with integrated form parking brake |
| CN108933497A (en) * | 2017-05-24 | 2018-12-04 | 明程电机技术（深圳）有限公司 | cooling motor |
| CN107994709A (en) * | 2018-01-17 | 2018-05-04 | 明程电机技术（深圳）有限公司 | Machine shaft and evaporation cooling shaft type oil-cooled motor |
| CN107994709B (en) * | 2018-01-17 | 2024-06-11 | 明程电机技术（深圳）有限公司 | Motor rotating shaft and evaporative cooling shaft type oil-cooled motor |
| CN108512363A (en) * | 2018-04-10 | 2018-09-07 | 浙江兴轮电驱动有限公司 | A kind of oil-cooled motor |
| CN108512363B (en) * | 2018-04-10 | 2020-08-18 | 浙江兴轮电驱动有限公司 | Oil-cooled motor |
| CN109194035A (en) * | 2018-09-04 | 2019-01-11 | 恒大法拉第未来智能汽车（广东）有限公司 | Motor with oil cooled system system |
| CN109194035B (en) * | 2018-09-04 | 2021-03-19 | 法法汽车(中国)有限公司 | Electric machine with oil cooling system |
| CN112615484A (en) * | 2020-11-30 | 2021-04-06 | 合肥巨一动力***有限公司 | Oil-cooled motor structure |
| CN112821685A (en) * | 2021-02-23 | 2021-05-18 | 江西江特电机有限公司 | Design method for saving axial space of motor |
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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: 20150624 Termination date: 20210114 |