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Patent Searching and Data


Title:
MOTOR CORE AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2015/102106
Kind Code:
A1
Abstract:
A motor core and a motor that have a stator with toothed poles shaped to reduce cogging torque and torque ripple are provided. The tip surface (12c) of a toothed pole (12) of the stator (10) is shaped so that a cross section of the tip surface (12c) along a circumferential direction is convex and curved in a direction away from the tip surface (22a) of a magnet (22) of a rotor (20) (equivalent to an outer circumferential surface of a rotor yoke (21)) facing the tip surface (12c).

Inventors:
OTA, Yusuke (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
WATANABE, Hayao (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
ENDOU, Shigeru (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
Application Number:
JP2015/000010
Publication Date:
July 09, 2015
Filing Date:
January 05, 2015
Export Citation:
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Assignee:
NSK LTD. (6-3 Ohsaki 1-chome, Shinagawa-ku Tokyo, 60, 〒1418560, JP)
International Classes:
H02K1/14; H02K21/14
Foreign References:
JPH0230270U1990-02-26
JP2004015880A2004-01-15
Attorney, Agent or Firm:
MORI, Tetsuya et al. (NICHIEI Patent and Trademark Attorneys, Shiroyama Trust Tower 32F 3-1, Toranomon 4-chome, Minato-k, Tokyo 32, 〒1056032, JP)
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