Patent ID: 9653969
Date: 2017-05-16
CPC Classifications: H01R,H02K

Claim:
1. A rotating electrical machine, comprising: a rotation shaft supported in a rotatable manner on a housing having a front bracket and a rear bracket; a stator fixed to the housing and having an armature winding; a rotor fixed to the rotation shaft and having a field core and a field winding; slip rings fixed to the rotation shaft and supplying a field current to the field winding; a positive brush and a negative brush supplying the field current to the field winding via the slip rings; and a brush holder holding the positive brush and the negative brush in storage portions of the brush holder in a movable manner and in a mutually electrically isolated state and having terminals supplying the field current to the positive brush and the negative brush, wherein the positive brush and the negative brush selectively protrude from an end surface of the brush holder so as to come into contact with the slip rings, wherein the brush holder includes a plurality of brush temperature suppressing metal members installed in the brush storage portions of the brush holder, wherein the plurality of brush temperature suppressing metal members come into contact with the positive brush and the negative brush; wherein at least one brush temperature suppressing metal member of the plurality of brush temperature suppressing metal members protrudes from a side surface of the brush holder adjacent to the end surface.