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:
Apr. 18, 2017
Filed:
Jan. 30, 2014
Johnson Electric S.a., Murten, CH;
Rui Feng Qin, Hong Kong, CN;
Fei Liu, Shenzhen, CN;
Ji Yu Liang, Shenzhen, CN;
Shu Hai Yuan, Shenzhen, CN;
Xin Hui Guan, Shenzhen, CN;
Johnson Electric S.A., Murten, CH;
Abstract
A commutated DC motor () includes a stator () and a rotor () mounted in the stator (). The stator () has 2P magnetic poles, wherein P is an integer greater than 1. The rotor () includes a rotor shaft () with a rotor core (), and a commutator () fixed thereto. The rotor core () has multiple teeth defining m×P slots therebetween, wherein m is an odd integer greater than 1. The commutator () has k×m×P segments, wherein k is 1 or 2. A rotor winding () formed by winding a single continuous wire is received in the slots of the rotor core () and connected to the segments of the commutator (), and has k×m winding units. Each winding unit includes P coils in series connection and is directly connected to only two segments.