The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Mar. 20, 2019
Johnson Electric International Ag, Murten, CH;
Jingxin Shi, Shenzhen, CN;
Sijun Zhao, Shenzhen, CN;
Luyan Bi, Shenzhen, CN;
Pingman Zhang, Shenzhen, CN;
Xionghui Liu, Shenzhen, CN;
Lang Dai, Shenzhen, CN;
Cong Lv, Shenzhen, CN;
Feifei Huang, Shenzhen, CN;
He Chi, Shenzhen, CN;
Baoqiang Cheng, Shenzhen, CN;
Seungpun Ho, Hong Kong, CN;
Dawei Zhou, Hong Kong, CN;
Zhijun Li, Shenzhen, CN;
Zhiyu Chen, Shenzhen, CN;
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Abstract
A rotor of an electric motor includes a rotating shaft, a rotor core and a commutator fixed to the rotating shaft, and a first sleeve, a second sleeve and a third sleeve arranged around the rotating shaft. The first sleeve is located on a side of the rotor core away from the commutator and abuts against the rotor core, the second sleeve is located between the rotor core and the commutator, and the third sleeve is located on a side of the commutator away from the rotor core.