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. 26, 2017
Filed:
Nov. 30, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Noriyoshi Nishiyama, Osaka, JP;
Osao Kido, Kyoto, JP;
Atsuo Okaichi, Osaka, JP;
Takumi Hikichi, Osaka, JP;
Yoshio Tomigashi, Osaka, JP;
Tetsuya Matsuyama, Nara, JP;
Masaaki Konoto, Kyoto, JP;
Osamu Kosuda, Osaka, JP;
Subaru Matsumoto, Osaka, JP;
Abstract
A permanent magnet synchronous machine includes a rotor including a core body and an overhang protruding further in an axial direction than a core of a stator. An end surface of the core body includes an N-region disposed on a north pole and an S-region disposed on a south pole. The overhang includes first permanent magnets arranged along an outer edge of the end surface with distances therebetween and a plurality of second permanent magnets disposed on the end surface and adjacent to the first permanent magnets. The first permanent magnets include at least one of a permanent magnet comprising a north pole facing the N-region and a permanent magnet comprising a south pole facing the S-region. The second permanent magnets are provided in the configuration which causes the second permanent magnets to generate a magnetic flux extending from the S-region toward the N-region.