Title:
DRIVETRAIN AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/208537
Kind Code:
A1
Abstract:
A drivetrain, comprising: a motor controller (1), comprising a housing (11) and a first functional unit (12) provided in the housing (11) and capable of generating heat during working; and a heat exchanger (2), provided in the housing (11) and comprising a first circulation channel (21) for allowing a first cooling medium to circulate, and a second circulation channel (22) for allowing a second cooling medium to circulate, wherein the first circulation channel (21) has a first external cooling surface (P1) and realizes heat conduction with the first functional unit (12) at the first external cooling surface (P1); and/or the first circulation channel (21) has a second external cooling surface (P2) and realizes heat conduction with the inner surface of the housing (11) at the second external cooling surface (P2). Also provided is an electric vehicle using the drivetrain. According to the drivetrain and the electric vehicle, the external cooling surfaces of the heat exchanger can be fully utilized, the utilization rate of the heat exchanger is increased, the heat dissipation of the motor controller is improved, the structure is more compact, and the space is saved.
Inventors:
WU HAO (CN)
CHEN JUN (CN)
LI QUANMING (CN)
CHEN JUN (CN)
LI QUANMING (CN)
Application Number:
PCT/CN2021/071105
Publication Date:
October 21, 2021
Filing Date:
January 11, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
B60K11/04; H05K7/20; H02K5/20; H02K9/19
Foreign References:
| CN205213192U | 2016-05-04 | |||
| CN109756056A | 2019-05-14 | |||
| CN209949748U | 2020-01-14 | |||
| CN109588019A | 2019-04-05 | |||
| CN210167914U | 2020-03-20 | |||
| EP2809138A2 | 2014-12-03 | |||
| CN202020579731U | 2020-04-17 |
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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