Patent ID: 9502932
Filing Date: 2016-11-22
CPC Classification: H02K

Claim Text:
1. A rotor for a rotating electric machine, comprising: a rotor core that has a magnet insertion hole comprising: a plurality of magnetic pole parts that are provided inside the rotor core at a predetermined interval in a circumferential direction of the rotor, the plurality of magnetic pole parts being magnetized in the radial direction, the plurality of magnetic pole parts being provided such that magnetization directions of the plurality of magnetic pole parts are alternately different from each other in the circumferential direction, each of the plurality of magnetic pole parts including a permanent magnet provided in the magnet insertion hole of the rotor core, the permanent magnet including a plurality of permanent magnet pieces that are divided in the circumferential direction within the magnet insertion hole; and the rotor core comprising: wherein the first peripheral edge portion of the magnet insertion hole comprises an outer peripheral edge portion, wherein the second peripheral edge portion of the magnet insertion hole comprises an inner peripheral edge portion provided on an inner side of the outer peripheral edge portion in the radial direction, and wherein the protrusion and the circumferential end portion of an adjacent permanent magnet piece of the plurality of permanent magnet pieces increase in distance from each other as each of the protrusion and the circumferential end portion of the adjacent permanent magnet piece extend along their length from the outer peripheral edge portion toward the inner peripheral edge portion.