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Patent Searching and Data


Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/118641
Kind Code:
A1
Abstract:
A rotary electric machine is provided with: rotary shafts (21, 22); a plurality of armature coils; a field core (40) that is surrounded by the plurality of armature coils; an annular space (43) that is formed within the field core (40); a field coil that is coiled so as to follow the annular space (43); a plurality of first permanent magnets (81) that are arranged so as to surround the annular space (43) and fixed to the field core (40); and a plurality of second permanent magnets (82) that are arranged so as to alternate with the plurality of first permanent magnets (81) and fixed to the field core (40). The plurality of first permanent magnets (81) are positioned near one end section (41) of the field core (40) and the plurality of second permanent magnets (82) are positioned near the other end section (42) of the field core (40). The field core (40) comprises: a plurality of first pole sections (44) that are adjacent to each of the plurality of first permanent magnets (81) on the other end (42) side; and a plurality of second pole sections (45) that are adjacent to each of the plurality of second permanent magnets (82) on the one end section (41) side. The first pole sections (44) and the second pole sections (45) are magnetized so as to have opposite polarities from each other by the magnetic field that is generated by the field coil.

Inventors:
ISHIBASHI Toshiyuki (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
OGA Sohei (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
ISHII Takaaki (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
KAWAHARA Atsushi (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
Application Number:
JP2014/052768
Publication Date:
August 13, 2015
Filing Date:
February 06, 2014
Export Citation:
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Assignee:
KABUSHIKI KAISHA YASKAWA DENKI (2-1 Kurosaki-Shiroishi, Yahatanishi-ku Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
International Classes:
H02K21/14
Foreign References:
JP2003164127A2003-06-06
JPH11127561A1999-05-11
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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