Patent ID: 7132777
Filing Date: 2006-11-07
Classification: F04D,H02K

Abstract:
1. A motor-fan unit comprising: a motor assembly having a shaft, a commutator supported on said shaft, and a pair of brushes in electrical contact with said commutator; a fan assembly having fan coupled to said shaft; an end plate assembly located between said fan and said motor assembly, said end plate assembly including a plate portion defining an opening through which said shaft passes, wherein said commutator is located near said opening; and a pair of brush retainers each having an open end adapted to receive a corresponding one of said brushes, each said brush retainer formed on said plate portion adjacent said commutator, wherein each said brush retainer opens in a mouth toward said fan assembly, said brush retainer having a first member extending axially toward said motor, a second member extending from said first member and a third member extending axially toward said fan assembly from said second member, and wherein each said brush retainer has a gap between said third member and said end plate.