CPC H02K 7/003 (2013.01) [H02K 7/116 (2013.01); H02K 9/227 (2021.01); H02K 11/0094 (2013.01); H02K 11/33 (2016.01); H02K 21/16 (2013.01)] | 16 Claims |
1. A stand-alone motor unit for use with a piece of power equipment, the motor unit comprising:
a housing;
a flange coupled to the housing on a first side thereof;
a slot in the flange, the slot configured to receive a protrusion of the piece of power equipment;
an electric motor located within the housing;
a power take-off shaft receiving torque from the motor and protruding from a second side of the housing adjacent the first side; and
a battery pack to provide power to the motor;
wherein the slot includes a first portion having a first surface width at the outer surface of the flange and a first base width at the base of the slot,
wherein the slot includes a second portion having a second surface width at the outer surface of the flange, and a second base width at the base of the slot, and
wherein the second surface width is less than the first surface width and the second base width.
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