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Patent Searching and Data


Title:
BRUSH HOLDER AND DC MOTOR PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2017/110420
Kind Code:
A1
Abstract:
Provided is a DC motor that can be reduced in size while choke coils and a capacitor are mounted to a brush holder to eliminate radio noise. A DC motor 1 is configured so as to be provided with a brush holder 14, the brush holder 14 being provided with a brush holder base 20 formed from an insulating material, at least a pair of brushes 15 for supplying electricity to a commutator 12, a spring 16 for placing the brushes 15 in sliding contact with the outer periphery of the commutator 12, and choke coils 17 and a capacitor 18 for eliminating radio noise, and the capacitor 18 is provided to a different surface of the brush holder 14 from the surface to which the choke coil 17 is provided.

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Inventors:
KUNIYA Kenji (2477, Takaba, Hitachinaka-sh, Ibaraki 62, 〒3120062, JP)
SAITO Yasuo (2477, Takaba, Hitachinaka-sh, Ibaraki 62, 〒3120062, JP)
SAITO Takafumi (2477, Takaba, Hitachinaka-sh, Ibaraki 62, 〒3120062, JP)
OKABE Keijirou (2477, Takaba, Hitachinaka-sh, Ibaraki 62, 〒3120062, JP)
Application Number:
JP2016/085835
Publication Date:
June 29, 2017
Filing Date:
December 02, 2016
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD. (2477, Takaba Hitachinaka-sh, Ibaraki 62, 〒3120062, JP)
International Classes:
H02K13/00; H02K23/66
Foreign References:
JP2015070658A2015-04-13
US20150372569A12015-12-24
JPH0652356U1994-07-15
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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