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:
May. 08, 2018
Filed:
May. 27, 2015
Industrial Technology Research Institute, Hsin-Chu, TW;
Shou-Long Yu, Taoyuan, TW;
Yang-Guang Liu, Xinfeng Township, TW;
Chia-Hao Hsu, Tainan, TW;
Liang-Chiao Huang, Puxin Township, TW;
Yu-Choung Chang, Jhudong Township, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsin-Chu, TW;
Abstract
An outer-rotor permanent magnet brushless motor is disclosed, which comprises an outer-rotor and an inner-stator. The outer-rotor configured with P poles, P is a natural number and denotes a multiple of 4. The inner-stator has a stator axle, and S teeth which configured on outer surface of stator, S=P−1, S is a natural number. A circle is formed about a center of the stator axle from the center of the outer end surface. A correction angle aand an original angle a are defined from the center of the outer end surface. T The ratio of a/a is defined by the following formula: 0.2<(a/a)<0.6.