公开(公告)号：US20040108787A1

公开(公告)日：2004-06-10

申请号：US10725314

申请日：2003-12-02

申请人： ASMO CO., LTD.

发明人： Yuuichi Terada ,  Kazunobu Kanno ,  Toshio Yamamoto

IPC分类号： H02K003/04 ,  H02K003/38

CPC分类号： H02K13/006 ,  H01R43/08 ,  H02K13/06

摘要： Commutator segments are divided into a plurality of groups, each of which includes two or more of the commutator segments. Generally planar short-circuiting parts are respectively provided to the groups of the commutator segments and are located radially inward of the commutator segments in such a manner that the short-circuiting parts are spaced one after the other in an axial direction of the commutator. Each short-circuiting part is seamlessly and integrally formed with and is electrically connected to a corresponding sub-element of each commutator segment of a corresponding one of the groups of the commutator segments, and at least one of the short-circuiting parts is located within an axial extent of at least one of power supply brushes measured in the axial direction of the commutator. A dielectric body securely holds each commutator segment and each short-circuiting part.