- 专利标题: Spring post for brush card for a power tool
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申请号: US14935560申请日: 2015-11-09
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公开(公告)号: US09991770B2公开(公告)日: 2018-06-05
- 发明人: Daniel F. Heck , Stephen P. Osborne , Jarrett A. Dunston
- 申请人: Black & Decker Inc.
- 申请人地址: US CT New Britain
- 专利权人: Black & Decker Inc.
- 当前专利权人: Black & Decker Inc.
- 当前专利权人地址: US CT New Britain
- 代理商 Amir R. Rohani
- 主分类号: H02K13/00
- IPC分类号: H02K13/00 ; H02K13/10 ; H01R39/38 ; H02K3/52 ; H02K5/14 ; H02K9/06 ; H02K5/167 ; H02K7/14 ; H02K5/18 ; H02K9/28
摘要:
An electric motor is provided including a stator and an armature rotatably received within the stator, the armature having an armature shaft on which a commutator is mounted. The motor also includes a brush assembly having a brush card mount disposed around the commutator, a brush holder mounted on a surface of the brush card mount, and a brush disposed within the brush holder in sliding contact with the commutator to supply electric current to the commutator. A torsion spring is secured to the brush card mount adjacent the brush holder, the spring having a leg arranged to engage the back surface of the brush. A spring stop post is disposed proximate an outer periphery of the brush card mount to limit an outward movement of the leg of the spring away from the back surface of the brush.
公开/授权文献
- US20160065039A1 Spring Post for Brush Card for a Power Tool 公开/授权日:2016-03-03
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