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1. (WO2018138806) ROTOR AND DYNAMO-ELECTRIC MACHINE

Pub. No.:    WO/2018/138806    International Application No.:    PCT/JP2017/002565
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Jan 26 00:59:59 CET 2017
IPC: H02K 1/27
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: UCHIMURA, Tomoya
内村 智也
YAMAGUCHI, Shinichi
山口 信一
ITO, Shota
伊藤 将太
Title: ROTOR AND DYNAMO-ELECTRIC MACHINE
Abstract:
This rotor (2) comprises: a rotor core (3) in which a plurality of magnet insertion holes (6) are formed in a single magnetic pole (7); and permanent magnets (5) respectively inserted in the plurality of magnet insertion holes (6). The magnet insertion holes (6) are formed in a circumferential direction (D1) so as to be symmetric with respect to a magnetic pole center plane (SV) which includes a line connecting the center axis (AX) of the rotor core (3) and a magnetic pole center (71) and which is parallel to the direction (D2) of the center axis (AX). The permanent magnets (5) are arranged in the direction (D2) so as to be asymmetric with respect to an axial center plane (SH) which passes through a center in the direction (D2) of the center axis (AX) and which is perpendicular to the magnetic pole center plane (SV), and the permanent magnets (5) are positioned in the circumferential direction (D1) so as to be asymmetric with respect to the magnetic pole center plane (SV). The magnetic pole center (71) is positioned on a line (9) bisecting the width of the outer peripheral surface (31) of the magnetic pole (71) in the circumferential direction (D1).