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:
Nov. 12, 2019
Filed:
May. 27, 2016
Johnson Electric S.a., Murten, CH;
Yue Li, Hong Kong, CN;
Mao Xiong Jiang, Shenzhen, CN;
Jian Zhao, Shenzhen, CN;
Yong Wang, Shenzhen, CN;
Yong Li, Shenzhen, CN;
Yan Fei Liao, Shenzhen, CN;
Ying Song Ye, Shenzhen, CN;
Hai Jun Hua, Shenzhen, CN;
Johnson Electric International AG, Murten, CH;
Abstract
A magnetic core for an electric motor has a ring-shaped yoke, teeth extending outwardly from the yoke, and a tooth tip extending from a distal end of each tooth. The core is formed from curved or coils strip laminations having teeth arranged in tooth groups. Each group has four tooth types arranged sequentially. Each tooth has left and right half tooth tips. The length of the half tooth tips vary according to tooth type. When assembled, first type tooth overlap with third type teeth and second type teeth overlap with fourth type teeth, whereby the opening of the winding slot is narrowed compared to laminations having all identical teeth.