Title:
POWERTRAIN, VEHICLE, AND MOTOR COOLING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/133798
Kind Code:
A1
Abstract:
Disclosed by the present application are a powertrain, vehicle, and motor cooling method; an oil inlet of a motor is in communication with a first end of an oil pump by means of a first channel; a first oil tank of the motor is in communication with a second end of the oil pump by means of a second channel; when the oil pump is in forward rotation, the end opening at the first end is the oil outlet of the oil pump, and the end opening at the second end is the oil inlet of the oil pump; the first end of the oil pump is in communication with a second oil tank by means of a third channel having a first valve; the second end of the oil pump is in communication with the second oil tank by means of a fourth channel having a second valve; in this way, when the oil pump is in reverse rotation, a cooling liquid can be fed into the motor chamber and accumulate in the motor chamber, thereby cooling the motor components by means of immersion, thus improving the cooling effect.
Inventors:
WANG JIANGANG (CN)
WU CHAOQIANG (CN)
LIU HONGBING (CN)
CHEN JUN (CN)
ZHONG HU (CN)
WU CHAOQIANG (CN)
LIU HONGBING (CN)
CHEN JUN (CN)
ZHONG HU (CN)
Application Number:
PCT/CN2020/138603
Publication Date:
June 30, 2022
Filing Date:
December 23, 2020
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02K9/19; F16H57/04
Foreign References:
| CN111936336A | 2020-11-13 | |||
| CN109756056A | 2019-05-14 | |||
| CN111585394A | 2020-08-25 | |||
| CN109790914A | 2019-05-21 | |||
| DE102018211360A1 | 2020-01-16 | |||
| JPH09182375A | 1997-07-11 |
Other References:
See also references of EP 4199326A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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