Title:
MOTOR COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/184328
Kind Code:
A1
Abstract:
A motor cooling system, comprising a first cooling channel (11), and a second cooling channel extending out from the first cooling channel (11). The first cooling channel (11) is arranged between a first water port and a second water port within a housing (1), the second cooling channel comprises a branch channel (21) arranged on a rotary shaft (2) and a communication channel (321) at an end portion of a motor, the branch channel (21) being in communication with the first cooling channel (11) via the communication channel (321), so as to form the second cooling channel. The cooling system also comprises a flow-dividing mechanism, capable of adjusting the flow of coolant through the second cooling channel. Therefore, the motor cooling system reduces the temperature of a stator and a rotor, and also controls the heat dissipation speed of the stator and the rotor via a flow-dividing post (15), thereby increasing the cooling efficiency of the motor, and decreasing the complexity of the motor.
Inventors:
ZHANG JINGCAI (CN)
ZHANG SHENGCHUAN (CN)
XIA SUMMER (CN)
ZHANG SHENGCHUAN (CN)
XIA SUMMER (CN)
Application Number:
PCT/CN2017/095238
Publication Date:
October 11, 2018
Filing Date:
July 31, 2017
Export Citation:
Assignee:
NIO CO LTD (CN)
International Classes:
H02K9/19
Foreign References:
| CN106953467A | 2017-07-14 | |||
| CN106981943A | 2017-07-25 | |||
| CN106972698A | 2017-07-21 | |||
| CN106300809A | 2017-01-04 | |||
| CN104942649A | 2015-09-30 | |||
| CN205429991U | 2016-08-03 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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