ELECTRIC MOTOR AND GEAR MOTOR Russian patent published in 2014 - IPC H02K23/04 

FIELD: electricity.

SUBSTANCE: invention is related to an electric motor mounted on the transport vehicle and to a gear motor. The motor with short-circuiting equipotential segments mounted at its collector (10); brushes (21) consisting of a low-speed brush (21a), a high-speed brush (21b) and a common brush (21c). Circumferential width (W2) of the high-speed brush is less than circumferential width (W1) of the low-speed brush. The high- and low-speed brushes are made so that their simultaneous sliding contact with equipotential segments (15) is excluded. Besides, armature cores (8) are made so that a variety of teeth (12) are placed centrally and symmetrically around the rotary shaft (3) at equal space in direction along the circumference, and teeth and slots (13) are formed so that their position is alternated in 90 degrees in direction along the circumference.

EFFECT: reduction of vibration and noise, provision of miniaturisation and high efficiency of the motor.

6 cl, 5 dwg