Patent ID: 6097128
Filing Date: 2000-08-01
Classification: H01R,H02K

Abstract:
A dust guard for a universal motor having a commutator, brushes, cages for guiding the brushes to the commutator and a fan for generating an airflow for cooling the motor, the guard comprising:a body having an aperture for receiving a brush cage;a hood extending from the body about the aperture and arranged to surround a portion of the commutator in contact with the brush of the cage received by the aperture and forming an open interior;a gap formed in an axial side of said hood, said gap providing an air inlet for the airflow; andat least one passageway connecting an interior of the hood with the airflow;whereby, during use of the motor, dust generated by wearing of the brush on the commutator is channeled through the passageway and into the airflow.