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. 30, 2016
Filed:
Dec. 22, 2009
Yasuhiro Endo, Toyota, JP;
Yasuhiro Endo, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A rotor that can reduce the used amount of resin for securing a permanent magnet is provided. The rotor includes a rotor core provided fixedly to a rotation shaft and having a magnet insertion hole extending in an axial direction formed therein, a permanent magnet embedded in the magnet insertion hole and extending in the axial direction and extending in a direction inclined relative to a radial direction of the rotor core, and a resin layer that secures the permanent magnet to the rotor core. The resin layer covers a surface of the permanent magnet and is in contact with an inner surface of the magnet insertion hole. A hollow space extending in the axial direction is left in the magnet insertion hole at an inner side in the radial direction relative to the permanent magnet. Part of the inner surface of the magnet insertion hole is exposed to the hollow space.