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:
Sep. 15, 2020
Filed:
Aug. 16, 2017
Honda Motor Co., Ltd., Tokyo, JP;
Yuta Ito, Saitama, JP;
Takuya Yoshizawa, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
To provide a rotor of a rotary electric machine having higher cooling performance than that of the related art. In a rotor structure of a rotary electric machine, on a surface on the side of a rotor core () of a first end surface plate (), a plurality of grooves () that radially extend are provided, and a first annular groove () that annularly extends along a circumference of an insertion hole () into which a shaft () is inserted is provided. In addition, the first annular groove () is connected to radially inside end portions of the grooves () and a refrigerant supply hole portion () of the rotor core (), and a depth of the first annular groove () is set to be larger than a depth of the grooves ().