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. 03, 2017
Filed:
Feb. 25, 2015
Nissan Motor Co., Ltd., Kanagawa, JP;
Kohei Murota, Kanagawa, JP;
Tohru Nakada, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Kanagawa, JP;
Abstract
A rotor structure for an electric rotating machine has a rotor, a plurality of strip-shaped permanent magnets which are arranged in a circumferential direction of the rotor, each of which penetrates the rotor in an axial direction of the rotor, flux barriers which are air gaps provided at positions corresponding to width-direction end portions of the permanent magnets to face the width-direction end portions of the permanent magnets, and demagnetization prevention holes, each of which is provided at a position in a vicinity of a corresponding one of the flux barriers and on an opposite side of the flux barrier from a stator and configured to reduce demagnetization at a corresponding one of the width-direction end portions of the permanent magnets.