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. 25, 2022
Filed:
Mar. 19, 2019
Aisin Corporation, Kariya, JP;
AISIN CORPORATION, Kariya, JP;
Abstract
The invention reduces tensile stress generated in the rotor core in a radial direction when a rotor core and a rotor support member are joined. A region in an axial direction (L) in which a melted joint portion (W) for joining a rotor core () and a rotor support member () is formed is set as an axial joint region (JR). Among a plurality of corner portions () of the permanent magnet (), at least one corner portion () that overlaps with the axial joint region (JR) when seen in a radial direction and that faces an outer peripheral surface (CP) of the rotor core () is set as a specific corner portion (). Among facing surface portions () of an inner wall portion of the magnet insertion hole () that face the corner portions (), the facing surface portion () that faces the specific corner portion () is set as a specific facing surface portion (). A clearance (G) formed between the specific corner portion () and the specific facing surface portion () is larger than a clearance formed between another corner portion () and another facing surface portion ().