Anti demagnetization permanent -magnet machine rotor

The utility model provides an anti demagnetization permanent -magnet machine rotor, including the pivot, rotor core, permanent magnet groove and permanent magnet, rotor core on use the pivot as the center permanent magnet groove the same with the motor number of poles that distribute, the permanent magnet install inside permanent magnet groove. The utility model discloses permanent magnet groove sets up to every section groove among W type permanent magnet groove or the V type permanent magnet groove cooperation permanent magnet groove sets up the setting into the dovetail groove respectively,is favorable to effectively adjusting the local demagnetization operating point of permanent magnet, improves minimum demagnetization operating point, strengthens anti demagnetization ability, the inclination of two grooves on the permanent magnet groove the left side and the inside permanent magnet hypotenuse that sets up of permanent magnet groove be respectively and, two grooves on the permanent magnet groove the righ