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:
Dec. 11, 2012
Filed:
Aug. 22, 2008
Yasuyuki Saito, Hitachinaka, JP;
Takashi Ishigami, Hitachinaka, JP;
Kenichi Nakayama, Hitachinaka, JP;
Akira Toba, Naka, JP;
Toru Mita, Koshu, JP;
Yasuyuki Saito, Hitachinaka, JP;
Takashi Ishigami, Hitachinaka, JP;
Kenichi Nakayama, Hitachinaka, JP;
Akira Toba, Naka, JP;
Toru Mita, Koshu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A rotating electrical machine includes: a stator that has a stator core and a stator coil; and a rotor disposed rotatably on an inner circumferential side of the stator core. The stator core includes a plurality of slots opening on the inner circumferential side and the slots are each formed as an open slot with a width of an inner circumferential-side opening thereof ranging along a circumferential direction set substantially equal to or greater than a width of a bottom side measured along the circumferential direction. The stator further includes a slot insulator disposed between inner wall of each of the slots at the stator core and the stator coil and a holding member constituted with a nonmagnetic material and inserted in each of the slots at the stator core so as to hold the slot insulator between two side surfaces present along the circumferential direction at the slot. The stator is formed by winding the stator coil through the plurality of slots.