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. 28, 2020
Filed:
Jul. 27, 2016
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Yuji Kano, Hitachinaka, JP;
Hiroshi Hamano, Hitachinaka, JP;
Takayuki Koizumi, Hitachinaka, JP;
Yasuyuki Saito, Hitachinaka, JP;
Yousuke Umesaki, Hitachinaka, JP;
Seigo Misaki, Hitachinaka, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
Provided are a rotor of a rotary electrical machine, a rotary electrical machine, and a vehicle, which enable mitigation of stress concentration generated in a magnet insertion hole of a rotor core and high-speed rotation. A rotorof a rotary electrical machine includes: a rotor coreincluding a plurality of magnet insertion holesfor each magnetic pole; and permanent magnetsinserted into the magnet insertion holes, in which a bridge portion, which mechanically connects a rotor core portionon the outer circumferential side of the magnet insertion holesand a rotor core portionon the inner circumferential side of the magnet insertion holes, is provided between the adjacent magnet insertion holes, and the bridge portionhas two inflection pointsandon the outer circumferential side of the bridge portion