Patent ID: 7902713

Claim:
A self-starting type permanent magnet synchronous motor comprising a stator and a rotor, said rotor comprising: a rotor core having a plurality of slots provided in an outer periphery thereof; a cage winding comprising a plurality of conductive and non-conductive bars embedded in the slots and conductive end rings that short-circuit the plurality of conductive bars on both end faces of each of the plurality of conductive bars in an axial direction thereof, wherein the rotor core comprises at least one magnet insertion hole arranged on an inner peripheral side from the slots, and at least one permanent magnet embedded in the at least one magnet insertion hole, and wherein when a pole center axis is denoted as a d-axis and an axis deviating from the pole center axis by an electrical angle 90° is denoted as a q-axis, at least two of the plurality of the non-conductive bars are embedded in the slots in a vicinity of one of the d-axis and the q-axis, and on a delay side in a rotating direction of the rotor.