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Patent Searching and Data


Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/065237
Kind Code:
A1
Abstract:
A brushed motor has: a rotor comprising a commutator, the rotor being supported so as to be capable of rotating about a center axis that extends horizontally in a forward/rearward direction; a casing that accommodates at least a portion of the rotor; a brush card disposed inside the casing, the brush card having a discoid portion having a discoid shape that expands in a direction orthogonal to the center axis; and a brush positioned forward of the brush card, the brush being supported by the brush card and being in contact with the commutator. The casing comprises: a cup-shaped housing having a cylindrical portion; and a cup-shaped back cover disposed rearward of the housing, the back cover constituting the casing together with the housing. The housing and/or the back cover has a flange part that expands radially outward from an opening. The axial-direction position of the outer peripheral surface of the brush card overlaps the flange part. The outer peripheral surface of the brush card and the housing and back cover face each other with a gap interposed therebetween.

Inventors:
HIWA, Takahiro (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2018/033787
Publication Date:
April 04, 2019
Filing Date:
September 12, 2018
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
H02K5/14; H02K5/10
Domestic Patent References:
WO2006115092A12006-11-02
Foreign References:
JP2013243892A2013-12-05
JP2016185025A2016-10-20
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