Invention Grant
- Patent Title: Embedded permanent magnet type rotating electric machine
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Application No.: US14850183Application Date: 2015-09-10
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Publication No.: US10158265B2Publication Date: 2018-12-18
- Inventor: Toshiharu Mochida , Akio Toba , Hiroshi Shimada , Hirofumi Nishimura
- Applicant: FUJI ELECTRIC CO., LTD.
- Applicant Address: JP Kawasaki-Shi
- Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee Address: JP Kawasaki-Shi
- Agency: Rabin & Berdo, P.C.
- Priority: JP2013-076053 20130401
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K16/02

Abstract:
An embedded permanent magnet type motor, which has one pole configured of two permanent magnets and has a plurality of poles of permanent magnets embedded in a rotor, includes a rotor whose magnet embedding holes communicate with a rotor outer periphery. The rotor has, between adjacent poles, a q-axis projection projecting in a direction away from a rotor rotation center. The magnet embedding holes are disposed so as to form an inverted V shape. An outer peripheral edge portion on the outer side of the permanent magnets has a curvature radius smaller than the distance from a rotation center axis to a rotor outermost peripheral portion. Circular intermediate plates of an outside diameter larger than the outside diameter of rotor steel plates are provided in intermediate positions in the rotor in a rotor rotation axis direction.
Public/Granted literature
- US20150380995A1 EMBEDDED PERMANENT MAGNET TYPE ROTATING ELECTRIC MACHINE Public/Granted day:2015-12-31
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