ELECTRIC MOTOR WITH EMBEDDED PERMANENT MAGNET, COMPRESSOR, AND REFRIGERATION AND AIR CONDITIONING EQUIPMENT

摘要

A rotor core includes a plurality of first electromagnetic steel plates 34a that are stacked in an axial direction and a plurality of second electromagnetic steel plates 34b that are stacked in an axial direction at both ends of the electromagnetic steel plate group thereof. The first electromagnetic steel plates 34a are provided therein with magnet insertion holes and first flux barriers. The second electromagnetic steel plates 34b are provided therein with the magnet insertion holes, second flux barriers, and projections that regulate the positions of the magnets. The second electromagnetic steel plates 34b are stacked at at least one of the axial direction ends 10a of the electromagnetic steel plate group including the plurality of first electromagnetic steel plates 34a and are provided at a position overhanging the axial direction end 10a of a stator core 10.