OUTER ROTOR MOTOR

WIPO Patent Application WO/2023/246048

A1

The present disclosure provides an outer rotor motor, comprising a motor driver cooling apparatus, a liquid cooling system, and a stator having a cavity in a shaft portion. A motor driver is at least partially arranged in the cavity, and the motor driver is arranged on the motor driver cooling apparatus. The liquid cooling system is arranged on the stator and/or the motor driver cooling apparatus, the liquid cooling system is used for cooling the stator and/or the motor driver, and the liquid cooling system at least partially extends to the outside of the motor. A beneficial effect of the present disclosure is that the liquid cooling system is arranged on an iron core of the stator and the motor driver cooling apparatus to cool the iron core of the stator and the motor driver, taking away heat generated by coil copper loss of the stator and heat generated by silicon steel sheet iron loss of the stator, and also taking away heat generated by power components of the motor driver, ensuring that the power components of the motor driver run in a mounting-controllable temperature range, thereby improving heat dissipation efficiency of the motor.

HU HUAZHI (CN)
JIANG GUOJUN (CN)
CHEN TENGFEI (CN)
LU XINGJIE (CN)

PCT/CN2022/141677

December 28, 2023

December 23, 2022

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EHANG INTELLIGENT EQUIPMENT GUANGZHOU CO LTD (CN)

H02K11/33; H02K9/19

CN115133718A	2022-09-30
CN217883130U	2022-11-22
US20210344255A1	2021-11-04
CN212085910U	2020-12-04
US20210013768A1	2021-01-14
CN107284210A	2017-10-24
CN113644784A	2021-11-12

IPYEE SHENZHEN OFFICE (CN)

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