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Patent Searching and Data


Title:
MOTOR AND FAN
Document Type and Number:
WIPO Patent Application WO/2018/146971
Kind Code:
A1
Abstract:
Provided is a motor comprising a rotor, a permanent magnet, a brush card assembly, a back cover, and a housing. The rotor has a core fixed to a shaft, a coil for exciting the core, and a commutator electrically connected to the coil. The brush card assembly has a plurality of brushes, a brush card that supports the plurality of brushes, and an outer peripheral wall that is provided on the outer periphery of the brush card and has a wall shape that protrudes in the axial direction. In an X-axis perpendicular to the central axis and a Y-axis perpendicular to both the central axis and the X-axis, the center of gravity of the plurality of brushes is located on one side with respect to the Y-axis. The outer peripheral wall has, on the one side with respect to the Y-axis, a notch part in which at least a portion of the outer peripheral is discontinuous, and is continuous in the other side.

Inventors:
OSUGA Shohei (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
HIWA Takahiro (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
MIYATA Youhei (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2017/046868
Publication Date:
August 16, 2018
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
H02K5/14; H02K13/00
Foreign References:
JP2016185025A2016-10-20
JP2014230419A2014-12-08
JP2016042790A2016-03-31
JP2010283958A2010-12-16
JP2016135053A2016-07-25
JP2008228486A2008-09-25
JPH10304644A1998-11-13
JPH05338923A1993-12-21
JP2003291970A2003-10-15
Attorney, Agent or Firm:
ISHII Takafumi (19-18-301, Takatsuki-machiTakatsuki-sh, Osaka 03, 〒5690803, JP)
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