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. 15, 2017
Filed:
Mar. 15, 2013
Honda Motor Co., Ltd., Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A void group made up of plural voids is formed on an outer circumferential side of a longitudinal end portion of a permanent magnet provided in a rotating electric machine rotor. The void group includes a first void and a second void row where plural second voids are formed at predetermined intervals at a position further radially outwards than the first void. A rib is formed between a pair of adjacent second voids of the second void row. End portions of the first void respectively overlap the pair of adjacent second voids. An imaginary line that extends along the center of the rib passes through at least part of the first void. A magnetic pole center-side end portion of the void group extends from the outer circumferential surface of the permanent magnet towards an outer circumferential surface of a rotor core.