Invention Grant
- Patent Title: Rotary electric machine
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Application No.: US15038851Application Date: 2014-12-15
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Publication No.: US10404115B2Publication Date: 2019-09-03
- Inventor: Sachiko Kawasaki , Kimiyasu Furusawa , Atsushi Sakaue , Akira Hashimoto , Hiroyuki Akita , Moriyuki Hazeyama , Masaya Inoue , Shinji Nishimura
- Applicant: MITSUBISHI ELECTRIC CORPORATION
- Applicant Address: JP Chiyoda-Ku, Tokyo
- Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee Address: JP Chiyoda-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2014-001681 20140108
- International Application: PCT/JP2014/083142 WO 20141215
- International Announcement: WO2015/104956 WO 20150716
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/14 ; H02K21/16

Abstract:
A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.
Public/Granted literature
- US20160380492A1 ROTARY ELECTRIC MACHINE Public/Granted day:2016-12-29
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