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Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2014/103180
Kind Code:
A1
Abstract:
In a motor, a rotation section includes an armature core having mn teeth (in this case, m is an odd number equal to or more than 3, and n is a natural number equal to or more than 2) which radially extend in the radial direction, a plurality of coils, and a commutator. A static section includes field magnets having 2n magnetic poles and a brush group including at least a first-potential brush and at least a second-potential brush. The commutator includes a segment group constituted by 2mn segments. In the segment group, the potential is cyclically increased or decreased between the first potential and the second potential in regard to a circumferential direction. Further, only the coil formed by winding a continuous conducting wire in a predetermined winding direction is disposed in each of k teeth among the mn teeth, and only the coil formed by winding the continuous conducting wire in a direction reverse to the predetermined winding direction is disposed in each of teeth disposed at a position separated from each of the k teeth at 360i degrees (in this case, i is a natural number equal to or less than (n-1)) of electric angles.

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Inventors:
HASHIZUME, Naohiro (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
MAKINO, Yusuke (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
HIWA, Takahiro (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
OSUGA, Shohei (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
Application Number:
JP2013/007077
Publication Date:
July 03, 2014
Filing Date:
December 03, 2013
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 60182, JP)
HASHIZUME, Naohiro (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
MAKINO, Yusuke (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
HIWA, Takahiro (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
OSUGA, Shohei (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 60182, JP)
International Classes:
H02K23/26; H02K23/00
Domestic Patent References:
WO2010137642A12010-12-02
Foreign References:
JP2007517486A2007-06-28
JP2011244564A2011-12-01
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