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:
Apr. 19, 2022
Filed:
Mar. 04, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Keiu Kanada, Miyoshi, JP;
Daisuke Ichigozaki, Toyota, JP;
Kazuaki Haga, Toyota, JP;
Motoki Hiraoka, Toyota, JP;
Daichi Maruyama, Nagoya, JP;
Hisamitsu Toshida, Toyota, JP;
Kyoko Nakamura, Nagoya, JP;
Akira Yamashita, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A rotating electrical machine capable of obtaining a higher torque while limiting the amount of permanent magnets used. A magnetic pole of a rotor includes an auxiliary magnet embedded in a rotor core and at least one main magnet arranged on an outer circumferential side than the auxiliary magnet of the rotor. In each magnetic pole, the distance from an end of the main magnet, the end facing the auxiliary magnet, to the auxiliary magnet facing the main magnet is shorter than the length of the main magnet in the radial direction. In a cross-section orthogonal to the rotation axis of the rotating electrical machine, the main magnets of each magnetic pole are arranged so as to be asymmetrical about a virtual line passing the rotation axis and axisymmetrically dividing the auxiliary magnet.