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. 27, 2004
Filed:
Sep. 27, 2001
Munekatsu Shimada, Tokyo, JP;
Hideaki Ono, Kanagawa-ken, JP;
Yuu Oowada, Kanagawa-ken, JP;
Toshio Kikuchi, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Kanagawa-ken, JP;
Abstract
A rotor structure for a permanent-magnet motor is disclosed as including an annular laminated stack ( ) of electromagnetic steel sheets incorporating magnets, annular end plates ( ) located at both ends of the annular laminated stack to hold the same, a cylindrical core buck ( ) carrying thereon the annular laminated stack and the annular end plates, and a rotor shaft ( ) integrally connected to the cylindrical core buck for rotating movement. The annular laminated stack has a plurality of first fixing portions ( ″), and each of the annular end plates has a plurality of second fixing portions ( ″) which are held in engagement with the first fixing portions of the annular laminated stack, with the annular end plates and the annular laminated stack being fixed to one another by caulking at the first and second fixing portions.