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Patent Searching and Data


Title:
ELECTRIC MOTOR, ELECTRIC POWER STEERING DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/141796
Kind Code:
A1
Abstract:
In the present invention, an electric motor comprises an annular stator core provided with a plurality of teeth disposed lined up along the circumferential direction on the inner circumferential surface of a back yoke. The electric motor comprises: a first coil group which is a group formed of a plurality of first coils that are wound in a concentrated manner onto a plurality of teeth which are adjacent and lined up, and that are excited by a first inverter, there being 3n (n is a natural number) of the first coil groups disposed at equal intervals in the circumferential direction; and a second coil group which is a group formed of a plurality of second coils that are wound in a concentrated manner onto a plurality of teeth which are adjacent and lined up at positions different from those of the teeth onto which the first coils are wound in a concentrated manner, and that are excited by a second inverter, there being 3n of the second coil groups disposed at equal intervals in the circumferential direction.

Inventors:
KIKUCHI, Yusuke (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
KIMURA, Gen (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
TU, Zhipeng (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
Application Number:
JP2015/058330
Publication Date:
September 24, 2015
Filing Date:
March 19, 2015
Export Citation:
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Assignee:
NSK Ltd. (6-3 Ohsaki 1-chome, Shinagawa-ku Tokyo, 60, 〒1418560, JP)
International Classes:
H02K3/28; B62D5/04; H02K3/18; H02K21/16
Domestic Patent References:
WO2013080374A12013-06-06
Foreign References:
JP2011114941A2011-06-09
Other References:
See also references of EP 3121939A4
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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