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. 27, 2009
Filed:
Jan. 30, 2006
Tatsuhiko Mizutani, Toyota, JP;
Toshiya Sugiyama, Toyota, JP;
Eiji Maeda, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A rotor includes a rotor core, a permanent magnet inserted into an opening formed along a circumferential direction of the rotor core, and end plates provided to sandwich the rotor core in a direction of a rotation axis. The permanent magnet is fixed to the rotor core with an adhesive. A stainless steel plate is provided between the rotor core and each of the end plates, the stainless steel plate having a linear expansion coefficient falling between that of the rotor core and that of the end plates. An outer periphery of each of the end plates in a circumferential direction has a portion placed to be radially inward with respect to an outer periphery of the stainless steel plate.