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Title:
ROTATING ELECTRICAL MACHINE ROTOR
Document Type and Number:
WIPO Patent Application WO/2011/155042
Kind Code:
A1
Abstract:
A rotating electrical machine rotor comprises a rotor iron core disposed on the outer circumferential side of the rotor shaft and a plurality of magnetic poles secured to the rotor iron core and arranged in the circumferential direction of the rotor iron core. The rotating electrical machine rotor further comprises a nonmagnetic ring attached by insertion to the outer circumferences of the magnetic poles and having a substantially polygonal outer circumferential shape. The nonmagnetic ring has an inner circumferential length (L) before assembly that satisfies a relationship of L ≤ L0, where L0 is the length of an envelope curve consisting of tangent lines of a magnetic-pole outer circumferential surface and an adjacent magnetic-pole outer circumferential surface. The rotating electrical machine rotor can be reduced in size and cost.

Inventors:
YAMAMURA Akihiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
山村 明弘 (〒10 東京都千代田区丸の内二丁目7番3号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKASHIMA Kazuhisa (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高島 和久 (〒10 東京都千代田区丸の内二丁目7番3号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
FUJII Hidechika (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2010/059844
Publication Date:
December 15, 2011
Filing Date:
June 10, 2010
Export Citation:
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Assignee:
Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目7番3号 Tokyo, 〒1008310, JP)
YAMAMURA Akihiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
山村 明弘 (〒10 東京都千代田区丸の内二丁目7番3号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKASHIMA Kazuhisa (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
高島 和久 (〒10 東京都千代田区丸の内二丁目7番3号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
H02K1/27
Attorney, Agent or Firm:
OIWA Masuo et al. (14-1, Minamitsukaguchi-cho 2-chome Amagasaki-sh, Hyogo 12, 〒6610012, JP)
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Claims: