ELECTRIC MOTOR BRUSH APPARATUS AND METHOD

摘要

A motor assembly includes: a motor housing including: at least one brush receptacle having top and bottom ends; a locking element extending from the top end toward the bottom end; and a housing spring member; at least one brush holder apparatus including: a brush holder housing sized to be received within the brush receptacle, including: an upper surface and a lower surface; a receiving aperture; and an open end; a brush spring enclosed by the brush holder housing; and a brush located inside the brush holder housing; wherein the brush holder apparatus is inserted inside the brush receptacle; and wherein the housing spring member urges the brush holder apparatus toward the top end such that the locking element is received inside the receiving aperture.

主权项

1. A motor assembly comprising:
a motor housing comprising:
at least one brush receptacle extending along a longitudinal axis of the brush receptacle and having a top end and a bottom end that are substantially parallel to the longitudinal axis;a locking element extending from the top end toward the bottom end of each brush receptacle; anda cantilevered housing spring member having a distal end extending substantially along the longitudinal axis and extending from the bottom end toward the top end of each brush receptacle; and at least one brush holder apparatus comprising:
a brush holder housing sized to be received within the at least one brush receptacle, comprising:
an upper surface and a lower surface that are substantially parallel;a first receiving aperture in the upper surface configured to receive the locking element when the brush holder housing is inserted inside the at least one brush receptacle; andan open end that is substantially perpendicular to the upper surface;a brush spring enclosed by the brush holder housing; anda brush located inside the brush holder housing but urged out of the open end of the brush holder housing by the brush spring along the longitudinal axis when the brush holder housing is inserted inside the at least one brush receptacle; wherein the at least one brush holder apparatus is inserted inside the at least one brush receptacle along the longitudinal axis; and wherein the housing spring member urges the at least one brush holder apparatus toward the top end of the at least one brush receptacle such that the locking element is received inside the first receiving aperture.