公开(公告)号：US09252646B2

公开(公告)日：2016-02-02

申请号：US14254571

申请日：2014-04-16

Applicant: ASMO CO., LTD.

Inventor： Ryousuke Oguri ,  Yousuke Kanbe ,  Tomoki Yamashita ,  Hiroaki Honma ,  Nakatsune Shirai

IPC: H01R39/38 ,  H02K13/00 ,  H02K5/14 ,  H02K5/167 ,  H01R39/40 ,  H02K7/116

CPC classification number: H02K13/00 ,  H01R39/40 ,  H02K5/148 ,  H02K5/1672 ,  H02K7/1166

Abstract: A motor includes a rotation shaft, a commutator, power supply brushes, and a brush holder. The brush holder includes an opposing portion that faces an end face of the commutator in an axial direction, a bearing holder, and a diffusion stopper. The diffusion stopper is arranged in a portion of the opposing portion located toward the outer side in the radial direction from the bearing holder and limits the diffusion of abrasion powder of the power supply brushes. The diffusion stopper is projected toward the commutator in the axial direction or recessed in the axial direction.

Abstract translation: 电动机包括旋转轴，换向器，电源电刷和电刷架。 电刷架包括面向换向器的轴向方向端面的相对部分，轴承座和扩散塞。 扩散止动器布置在相对部分的从轴承座径向外侧的部分中，并限制电源刷的磨损粉末的扩散。 扩散阻挡件沿轴向朝换向器突出或沿轴向凹入。