Patent ID: 9653975
Date: 2017-05-16
CPC Classifications: H02K,Y10T

Claim:
1. A rotor having permanent magnets, comprising: a laminated core body including a shaft hole and a plurality of magnet insertion holes, the shaft hole receiving a shaft and being provided at a center, the plurality of magnet insertion holes being provided around the shaft hole; permanent magnets disposed in the respective magnet insertion holes; first and second end face plates disposed on one axial end and the other axial end of the laminated core body, respectively, the first and second end face plates including first and second through holes communicating with the magnet insertion holes, respectively; and resin filled in the magnet insertion holes and the first and second through holes, wherein the first and second through holes each overlap a contour of a magnet insertion hole on a radially inner side or a radially outer side in a plan view, and have first and second tapered portions gradually expanding the diameter toward the magnet insertion hole, respectively, and wherein the first and second through holes have the first and second tapered portions on the magnet insertion hole-side, respectively, and have third and fourth tapered portions gradually expanding the diameter toward the opposite side to the magnet insertion hole-side, on the opposite side to the magnet insertion hole-side, respectively.