Dynamoelectric machine with brush holding structure

摘要

A dynamoelectric machine includes a member rotatably receiving one end of the rotor and forming part of the case, the member having a plurality of brush boxes each having a first opening adjacent the commutator and a second opening through the outside of the case at a right angle to the first opening. Abrush is inserted into each brush box through the second opening and is biased toward the commutator to the first opening by a V-shaped spring inserted apex first through the second opening behind the brush, one leg of each V-shaped engaging the brush and the other end being attached to a terminal portion engaging the rotor receiving member to provide a base for the spring and an external electrical connection for the brush.