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:
Jul. 06, 2021
Filed:
Jun. 28, 2019
Aisin Aw Co., Ltd., Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Yukiyasu Sugiura, Gamagori, JP;
Masayuki Ikemoto, Anjo, JP;
Naoto Saito, Nishio, JP;
Suguru Gangi, Toyota, JP;
Shinya Sano, Toyota, JP;
AISIN AW CO., LTD., Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A rotor that includes a permanent magnet; and a rotor core that has a magnet placement hole in which the permanent magnet is disposed, wherein the stress relaxation magnetic flux suppression hole is formed such that a total width of a minimum width of a first magnetic flux passage between a portion of the stress relaxation magnetic flux suppression hole on a first side in the longitudinal direction and the magnet placement hole and a minimum width of a second magnetic flux passage between a portion of the stress relaxation magnetic flux suppression hole on a second side in the longitudinal direction and the magnet placement hole is less than a total length of a length of the first magnetic flux passage in the longitudinal direction and a length of the second magnetic flux passage in the longitudinal direction.