Invention Grant
- Patent Title: Motor with stator cover formed by overlapping two members
- Patent Title (中): 带有定子盖的电机通过重叠两个构件形成
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Application No.: US13457862Application Date: 2012-04-27
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Publication No.: US08946948B2Publication Date: 2015-02-03
- Inventor: Masaki Adachi , Yoshiaki Oguma , Yasuyuki Kaji
- Applicant: Masaki Adachi , Yoshiaki Oguma , Yasuyuki Kaji
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2011-135497 20110617; JP2011-264492 20111202
- Main IPC: H02K5/00
- IPC: H02K5/00 ; H02K5/10 ; H02K11/00 ; H02K7/14 ; H02K5/128

Abstract:
A motor includes a cover made of a resin material. The cover includes a first annular portion arranged to extend in an annular shape above coils, a side wall portion arranged to extend downward from an outer circumferential portion of the first annular portion, and a second annular portion arranged to extend radially outward or radially inward from a lower end portion of the side wall portion along an upper surface of a circuit board. The side wall portion is arranged to extend in an axial direction while filling in gaps between teeth on a radially inner side of radially outer end surfaces of the teeth. The coils are covered by the cover to be protected from dust, water droplets, etc. The radially outer end surfaces of the teeth are exposed from the cover, and are thus arranged to be in radial proximity to a rotor magnet.
Public/Granted literature
- US20120319543A1 MOTOR Public/Granted day:2012-12-20
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