ELECTRIC MOTOR STATOR Russian patent published in 2008 - IPC H02K1/16 H02K1/12 H02K1/06 

FIELD: electric engineering.

SUBSTANCE: according to the first option of invention, yoke connecting all teeth, and winding wound around teeth is included into electric motor stator containing a number of teeth being arranged along rotor circle at definite distance from each other. Height of tooth head directed to rotor is less than rotor height, while yoke height is more than tooth head height. Besides, each tooth is provided with connecting end to link tooth with yoke. Height of connecting end is more than tooth head height but less than yoke height. According to the second option of invention, height of the said stator tooth head, directed to rotor is less rotor height and yoke height is more than tooth head height. In addition, teeth and yoke are made of different materials and each tooth is provided with connected end to link tooth with yoke. Height of the said connecting end is more than tooth height, but less than yoke height. Owing to tooth head height being less rotor height, departure effect is achieved, and yoke height being more than tooth head height, minimum losses are ensured in yoke core. Height of tooth neck increases circumferentially from its sides to center.

EFFECT: reduction of end winding while decreasing costs of electric motor manufacture and simultaneous improvement of efficiency factor.

8 cl, 11 dwg