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    • 6. 发明授权
    • Miniature motor
    • 微型电机
    • US5357159A
    • 1994-10-18
    • US78440
    • 1993-06-16
    • Kenji HagiwaraIsao ShibuyaKazutoshi Yoshimura
    • Kenji HagiwaraIsao ShibuyaKazutoshi Yoshimura
    • H01R39/18H02K13/00H02K13/10H02K23/00H02K5/12
    • H02K13/10
    • A miniature motor comprising a case made of a metallic material, formed into a bottomed hollow cylindrical shape and having permanent magnets on the inner circumferential surface thereof, a rotor consisting of an armature facing the permanent magnets and a commutator, and a case cap fitted to an open end of the case and having brushes making sliding contact with the commutator and input terminals electrically connected to the brushes; the rotor being rotatably supported by bearings provided on the bottom of the case and the case cap, in which an internal space defined by the case and the case cap is filled with an atmosphere of one or more than two types of polymethacrylate, polyacrylate, polyisobutylene, low molecular weight polyethylene, low molecular weight polypropylene, ethylene-propylene copolymer, polyvinyl acetate, and polybutene.
    • 一种微型电动机,包括由金属材料制成的壳体,其形成为有底的中空圆筒形状并且在其内圆周表面上具有永磁体;转子,其由面对永磁体的电枢和换向器组成,壳体盖安装到 壳体的开口端,并且具有与换向器滑动接触的电刷和与电刷电连接的输入端子; 转子由壳体底部的轴承和外壳盖可旋转地支撑,其中由壳体和壳盖限定的内部空间填充有一种或多于两种类型的聚甲基丙烯酸酯,聚丙烯酸酯,聚异丁烯 ,低分子量聚乙烯,低分子量聚丙烯,乙烯 - 丙烯共聚物,聚乙酸乙烯酯和聚丁烯。