发明授权
- 专利标题: Method of making an armature
- 专利标题(中): 制作电枢的方法
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申请号: US13023854申请日: 2011-02-09
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公开(公告)号: US08171616B2公开(公告)日: 2012-05-08
- 发明人: David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
- 申请人: David J. Smith , John C. Stone , Robert Tumberlinson , Earl M. Ortt
- 代理商 Amir Rohani
- 主分类号: H01R43/10
- IPC分类号: H01R43/10
摘要:
An armature for an electric motor has a lamination stack on a shaft with a commutator mounted on one end of the shaft. Magnet wires wound in slots in the lamination stack, the commutator and armature shaft are at least partially encapsulated in thermoset. The commutator has a commutator ring divided into a plurality of segments with slots between the segments that are filled with a second plastic when the commutator is made by molding a core of the second plastic, such as phenolic, in the commutator ring before the commutator ring is mounted on the armature shaft. Prior to molding the thermoset, the commutator ring is sealed. The seal prevents the thermoset from flowing into the slots between the commutator ring segments or over the commutator ring.
公开/授权文献
- US20110126399A1 METHOD OF MAKING AN ARMATURE 公开/授权日:2011-06-02