Magnetizing method of magnetizing apparatus and the permanent magnet rotating electric machine

摘要

PROBLEM TO BE SOLVED: To provide a method of magnetization which improves the magnetization rate of a permanent magnet by keeping the approximately constant opposition interval between a magnetizing yoke and permanent magnets inserted into each magnet insertion hole.;SOLUTION: Magnetization is performed with a magnetizing yoke 11, after shifting and pressing a permanent magnet 10 against the outer inwall (the first inwall face 13a) of a permanent magnet insertion hole 13 by rotating a rotor 9, when magnetizing the unmagnetized permanent magnet 10 embedded in the magnet insertion hole 13 of the rotor 9 by a magnetic flux generated by winding 16 provided in the magnetizing yoke 11 thereby making a magnetized permanent magnet. By doing it this way, the opposition interval between each permanent magnet 10 inserted into each magnet insertion hole 13 and the magnetizing yoke 11 becomes constant, thereby enhancing the efficiency of magnetization of the permanent magnet 10.;COPYRIGHT: (C)2011,JPO&INPIT