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Patent Searching and Data


Title:
COAXIAL MID-DRIVE MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/217757
Kind Code:
A1
Abstract:
Disclosed is a coaxial mid-drive motor, comprising a housing, a bottom bracket, a stator assembly, a rotor assembly, a speed change module, and a clutch module. The stator assembly, the rotor assembly, the speed change module, and the clutch module are located in the housing. The stator assembly is sleeved inside the rotor assembly and connected to the housing. The bottom bracket passes through the stator assembly, the rotor assembly, the speed change module, and the clutch module. The speed change module is connected to the rotor assembly. The clutch module is respectively connected to the bottom bracket and the speed change module. The bottom bracket passes through the housing and protrudes out of the housing. The above design of the present invention enables the axes of the stator assembly, the rotor assembly, the speed change module, and the bottom bracket to coincide with each other, simplifies the entire transmission process, reduces mechanical losses during power output transmission, and does not easily result in wear and tear. The motor generates little noise during operation, and the service life thereof is extended.

Inventors:
NI JIE (CN)
CHEN WENSHENG (CN)
WU QIHUANG (CN)
XU JIAWEI (CN)
ZHOU JINHONG (CN)
WANG YUFENG (CN)
Application Number:
PCT/CN2020/091259
Publication Date:
November 04, 2021
Filing Date:
May 20, 2020
Export Citation:
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Assignee:
ZHEJIANG LUYUAN ELECTRIC VEHICLE CO LTD (CN)
International Classes:
H02K7/10
Foreign References:
CN201597430U2010-10-06
CN110466339A2019-11-19
CN102025298A2011-04-20
CN110271405A2019-09-24
KR101338170B12013-12-06
US20150194866A12015-07-09
Attorney, Agent or Firm:
ZHE JIANG Y&W LAW FIRM (CN)
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