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:
Aug. 12, 2014
Filed:
Feb. 02, 2012
Shinya Sano, Toyota, JP;
Ken Takeda, Anjo, JP;
Tomohiro Inagaki, Nishio, JP;
Shinichi Otake, Aichi-ken, JP;
Tsuyoshi Miyaji, Toyohashi, JP;
Akifumi Kurokawa, Kariya, JP;
Shinya Sano, Toyota, JP;
Ken Takeda, Anjo, JP;
Tomohiro Inagaki, Nishio, JP;
Shinichi Otake, Aichi-ken, JP;
Tsuyoshi Miyaji, Toyohashi, JP;
Akifumi Kurokawa, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Aisin Seiki Kabushiki Kaisha, Aichi-ken, JP;
Aisin AW Co., Ltd., Aichi-ken, JP;
Abstract
In a rotor for a rotary electric machine, a plurality of magnetic poles are provided in a radially outer portion of the rotor iron core, at intervals in the circumferential direction. Each magnetic pole includes a pair of permanent magnets disposed apart from each other in the circumferential direction, and a magnetic flux-restraining hole that is formed and extended radially inwardly between radially inner end portions of the permanent magnets and that restrains flow of magnetic flux. The magnetic flux-restraining hole is extended so as to project beyond a position of the radially inner end portions to a radially outer side, between the pair of permanent magnets.