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. 22, 2019
Filed:
Jun. 27, 2017
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Kenichi Nakayama, Hitachinaka, JP;
Naoki Nishikawa, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
The heat dissipation of a coil of a stator is enhanced. A stator of a dynamo-electric machine or a dynamo-electric machine according to the present invention includes: a stator core in which a plurality of slots arranged in the circumferential direction are formed; and a stator coil with an insulating film inserted in the slots in the stator core. The stator coil is composed of a first-layer segment to a fourth-layer segment each of which is formed by arranging a plurality of segment coils in the circumferential direction and which are arranged from the inner radius side to the outer radius side in the radial direction. The first-layer segment and the second-layer segment are displaced from each other by a first amount of displacement in the circumferential direction and connected to each other. The third-layer segment and the fourth-layer segment are displaced from each other by a second amount of displacement different from the first amount of displacement in the circumferential direction and connected to each other.