Patent ID: 8072111

Claim:
A motor, in which a rotor is started using induction torque generated as power is supplied to a coil of a stator, wherein the rotor comprises: a rotor core; a plurality of conductive bars arranged, along a circumferential direction, in an outer rim region of the rotor core, to generate an induction current; a magnet provided in the rotor core, to generate a magnetic flux, for generation of magnetic torque; flux barriers formed in the rotor core, to interrupt flow of a magnetic flux, for generation of reluctance torque; end-rings provided at the top and bottom of the rotor core to have no interference with the magnet, the end-rings being connected with the plurality of conductive bars; a q-axis extending radially from a center of the rotor, along which the flow of a magnetic flux is interrupted by the flux barriers; and a d-axis extending radially from the center of the rotor, along which the flow of a magnetic flux is not interrupted, wherein the end-ring provided at the top of the rotor core includes a q-axis direction portion and a d-axis direction portion, and a radial width of the q-axis direction portion is smaller than a radial width of the d-axis direction portion.