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:
Jul. 07, 2020
Filed:
Feb. 09, 2018
Fanuc Corporation, Yamanashi, JP;
Akihiro Hosoda, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
The present invention is to provide a rotor capable of further increasing curvature of a permanent magnet while absorbing strain in the permanent magnet. A rotor having an embedded magnet type structure includes a rotor core having a plurality of slots disposed in a circumferential direction and a plurality of magnet parts respectively stored in the plurality of slots. Each of the plurality of magnet parts includes a pair of first sintered magnets each of which has a bar shape in a sectional view cut along a plane orthogonal to a rotary shaft and each of which is disposed so as to come closer to the other first sintered magnet along a radially inward direction of the rotor core, a second sintered magnet which has a curved shape curved in an arc shape in the sectional view and each of both end surfaces of which faces each of end surfaces in the radially inward direction of the pair of first sintered magnets, and a connecting member which is formed of resin and which connects each of the pair of first sintered magnets and the second sintered magnet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile