CPC H02K 1/32 (2013.01) [H02K 1/16 (2013.01); H02K 1/274 (2013.01); H02K 3/12 (2013.01); H02K 5/16 (2013.01); H02K 5/1732 (2013.01); H02K 7/083 (2013.01); H02K 9/193 (2013.01); H02K 9/197 (2013.01); H02K 11/40 (2016.01); H02K 11/00 (2013.01)] | 10 Claims |
1. An electric motor comprising:
a case;
a stator having stator windings coupled to the case;
a rotor having a rotor shaft;
at least one main rotor bearing coupling the rotor shaft to the case; and
a rotor discharge brush coupled between the case and the rotor shaft along the longitudinal axis of the rotor shaft, wherein the rotor discharge brush comprises:
a first portion in contact with the rotor shaft; and
a second portion connected between the first portion and the case,
and wherein the first portion has first diameter and the second portion has a second diameter that is larger than the first diameter.
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