Title:
ELECTRIC MOTOR, ELECTRIC MOTOR COOLING SYSTEM AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/244284
Kind Code:
A1
Abstract:
Provided in the present application is an electric motor, comprising an electric motor housing and a stator iron core mounted in the electric motor housing; the electric motor housing being provided with a distribution groove, a fluid inlet channel and a fluid outlet channel, the distribution groove being disposed at an inner wall of the electric motor housing, the fluid inlet channel being in communication with the distribution groove and a space outside the electric motor housing, and the fluid outlet groove being in communication with spaces inside and outside of the housing; an outer wall of the stator iron core being provided with a stator groove, an extension direction of the stator groove intersecting an extension direction of the distribution groove, and two opposite ends along the extension direction of the stator groove both being closed; the stator groove being in communication with both the distribution groove and the fluid outlet groove; the fluid inlet channel, the distribution groove, the stator groove and the fluid outlet channel all being in communication, forming a coolant channel. Also provided in the present application are an electric motor cooling system comprising said electric motor, and an electric vehicle comprising said electric motor cooling system. Technical solutions of the present application improve electric motor stator heat dissipation efficiency.
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Inventors:
WANG JIANGANG (CN)
LI QUANMING (CN)
XIE TINGYU (CN)
WANG YIBO (CN)
LI QUANMING (CN)
XIE TINGYU (CN)
WANG YIBO (CN)
Application Number:
PCT/CN2020/081148
Publication Date:
December 10, 2020
Filing Date:
March 25, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02K1/20; H02K5/20; H02K9/19
Foreign References:
| CN110266127A | 2019-09-20 | |||
| DE102016200081A1 | 2017-07-13 | |||
| CN202550715U | 2012-11-21 | |||
| JP6163071B2 | 2017-07-12 | |||
| CN201910480166A | 2019-06-04 |
Other References:
See also references of EP 3913769A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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