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Title:
ROTOR SHAFT ASSEMBLY, ROTOR, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/141035
Kind Code:
A1
Abstract:
Provided are a rotor shaft assembly, rotor, and motor, said rotor shaft assembly comprising: a magnetic core (10); a first end shaft (20); a second end shaft (30); a protective cover (40), the protective cover (40) being provided, in sequence, with a first through-hole (41), a second through-hole (42), and a third through-hole (43); the first end shaft (20) is set inside the first through-hole (41), at least part of the magnetic core (10) is arranged inside the second through-hole (42), and the second end shaft (30) is set inside the third through-hole (43); the minimum distance between the center line of the protective cover (40) and the hole wall of the first through-hole (41) is a, the minimum distance between the center line of the protective cover (40) and the hole wall of the second through-hole (42) is b, and the minimum distance between the center line of the protective cover (40) and the hole wall of the third through-hole (43) is c, wherein at least one of a and c is not equal to b. The rotor shaft assembly solves the problem in the prior art of a rotor shaft assembly being prone to off-center axial alignment when assembling the end shaft with a magnet.

Inventors:
PENG, Liming (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
JIA, Jinxin (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
ZHANG, Xiaobo (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
LIU, Jianning (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
ZHANG, Fang (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
LI, Guanghai (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
GUO, Changguang (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
WEI, Qiong (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
LI, Zhongyu (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
YAN, Jin (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
LIANG, Jiandong (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
XIONG, Bowen (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
WANG, Zeye (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
Application Number:
CN2018/121458
Publication Date:
July 25, 2019
Filing Date:
December 17, 2018
Export Citation:
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Assignee:
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI (West Jinji Road Qianshan, Zhuhai, Guangdong 0, 519070, CN)
International Classes:
H02K7/00; F16C3/02
Foreign References:
CN108054867A2018-05-18
CN207819654U2018-09-04
CN106100182A2016-11-09
CN105449920A2016-03-30
CN201298773Y2009-08-26
CN103511444A2014-01-15
US20150084464A12015-03-26
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Floor 16, Tower AIndo Building,A48 Zhichun Road, Haidian District, Beijing 8, 100098, CN)
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