Title:
THREE-IN-ONE ELECTRIC DRIVE INTEGRATED SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/123819
Kind Code:
A1
Abstract:
Disclosed in the present invention is a three-in-one electric drive integrated system for a new-energy vehicle. An oil cooling loop and a water cooling loop are provided among an electric motor, a retarder and a controller. Oil in the retarder is thrown from a low level to a high level under the action of rotation of a gear in the retarder, some of the oil is guided to an electric motor shaft of the electric motor to serve as cooling oil, the electric motor shaft is provided with an oil injection hole, and the cooling oil is sprayed onto a stator winding region and a bearing region under the action of a centrifugal force of rotation of the electric motor shaft so as to achieve the oil cooling for a stator winding of the electric motor and the lubrication for a bearing, while the cooling oil inside the electric motor flows back to the retarder to form an oil cooling circulation. In addition, the circulation water cooling loop is provided among the electric motor, the retarder and the controller, and a heat exchange is created between the water cooling loop and the oil cooling loop at the electric motor and an oil pan of the retarder to cool a housing and the cooling oil by means of cooling water, so as to achieve an oil-water composite cooling effect on the three-in-one electric drive integrated system, thereby increasing the torque capacity and power capacity of the electric motor.
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Inventors:
PEI ZHENGQIANG (CN)
LIU XIA (CN)
LIU HUAIJIN (CN)
SI TE (CN)
TIAN XIAOKAI (CN)
LIU XIA (CN)
LIU HUAIJIN (CN)
SI TE (CN)
TIAN XIAOKAI (CN)
Application Number:
PCT/CN2022/092707
Publication Date:
July 06, 2023
Filing Date:
May 13, 2022
Export Citation:
Assignee:
JING JIN ELECTRIC TECH CO LTD (CN)
International Classes:
H02K9/19; H02K5/16; H02K5/20
Foreign References:
| CN114244023A | 2022-03-25 | |||
| CN216981727U | 2022-07-15 | |||
| CN112092607A | 2020-12-18 | |||
| CN110729856A | 2020-01-24 | |||
| CN109756056A | 2019-05-14 | |||
| CN111431346A | 2020-07-17 | |||
| KR20050013761A | 2005-02-05 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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