公开(公告)号：US20120216764A1

公开(公告)日：2012-08-30

申请号：US13404948

申请日：2012-02-24

申请人： Rui Feng QIN ,  Tao QU ,  Xin Hui GUAN

发明人： Rui Feng QIN ,  Tao QU ,  Xin Hui GUAN

IPC分类号： F01P5/04 ,  F04B35/04 ,  H01R39/415

CPC分类号： H01R39/415 ,  H02K5/148

摘要： A cooling module for an engine includes an electric motor and an impeller driven by the motor. The motor includes a stator having brush assemblies, and a rotor having a commutator. Each of the brush assemblies includes a brush holder, a brush slidably received in the brush holder, and a spring. The spring includes a mounting portion, a coiled portion and an elongated unrolled section joining the mounting portion to the coiled portion. The mounting portion is fixed to the brush holder and located closer to the commutator than the coiled portion. The coiled portion presses against a radially outer end of the brush to push the brush towards the commutator. The brush forms a concave for accommodating the coiled portion of the spring. The unrolled section is coiled into the coiled portion as the length of the brush is reduced.

摘要翻译： 用于发动机的冷却模块包括电动机和由电动机驱动的叶轮。 马达包括具有刷组件的定子和具有换向器的转子。 每个电刷组件包括电刷架，可滑动地容纳在电刷架中的电刷和弹簧。 弹簧包括安装部分，螺旋部分和将安装部分连接到螺旋部分的细长展开部分。 安装部分被固定到电刷架上并且比线圈部分更靠近换向器。 卷绕部分压靠刷子的径向外端以将刷子推向换向器。 刷形成用于容纳弹簧的卷绕部分的凹部。 当刷子的长度减小时，展开的部分被卷绕到卷绕部分中。