ROTARY ELECTRIC MACHINE AND STATOR CORE MANUFACTURING DEVICE FOR MANUFACTURING STATOR CORE THEREOF

摘要

The purpose of the present invention is to obtain a rotary electric machine capable of simultaneously achieving reductions in cogging torque and torque ripple and an increase in torque. This rotary electric machine is an electric machine (1A) which is provided with a rotor (2) and a stator (5) comprising a stator core (6A) disposed coaxially with the rotor (2) so as to surround the rotor (2), the stator core (6A) being provided with a yoke (7) which is disposed coaxially with the rotor (2), and a plurality of teeth (8) which are each configured from a tooth base portion (8a) protruding between both ends in the axial direction of the yoke (7) and tooth brim portions (8b, 8c) protruding from the front end of the tooth base portion (8a) to both sides and are arranged at intervals therebetween in the circumferential direction of the yoke (7), and an opening of a slot (10) formed between the adjacent teeth (8) being skewed with respect to the axial direction of the yoke (7), wherein the widths of the tooth brim portions (8b, 8c) each become narrower from a connection with the tooth base portion (8a) toward the front end.