STATOR IRON CORE OF ELECTRIC MOTOR, MANUFACTURING METHOD THEREOF, ELECTRIC MOTOR, AND COMPRESSOR

摘要

PURPOSE: A motor stator core is provided to be capable of restraining efficiency drop, and vibrations and noise of a motor by relieving the stresses at slot bottoms generated at manufacturing and assembly of the motor. CONSTITUTION: The motor stator core is constructed into an annular form, by bendably connecting a plurality of magnetic pole piece sections(3) having back yokes(3e) and teeth sections(3f) protruding from the back yokes(3e) through joint sections(9) formed at the back yokes(3e), and after winding, bending the joint sections(9) of the core, wherein the magnetic pole piece sections are constructed, so that the slot bottoms constituted of the back yokes and the tee sections form a curved line.