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:
Oct. 15, 2019
Filed:
Nov. 18, 2016
Hitachi Automotive Systems Engineering, Ltd., Hitachinaka-shi, Ibaraki, JP;
Hitachi Automotive Systems Engineering, Ltd., Hitachinaka-shi, JP;
Abstract
Provided is a rotating electrical machine in which torque ripple can be decreased at the time of one-side electrical current supply. A motor includes a stator coil constituted by concentrated windings arranged to teeth where an integer N≥2. The stator coil includes first and second winding units and each of which is constituted by windings and which are independent from each other, the windings constituting the first winding unit are arranged in three teeth groups, each of which includes adjacent teeth and which are provided at 120-degree pitches in terms of mechanical angle, and the windings constituting the second winding unit are arranged in teeth which are the teeth not included in the three teeth groups. That is, the windings constituting the second winding unit are also arranged in three teeth groups, which are provided at 120-degree pitches in terms of mechanical angle.