| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a permanent magnet-type rotary machine, for reducing variations of rotation performance of the permanent magnet rotary machine and reducing cogging torque of a component of the number of poles without affecting torque control performance. SOLUTION: The permanent magnet-type rotary machine of a 2n pole 3n slot-type includes rotors 2, 12 and 22 having permanent magnets 2a, 12a and 22a; stator cores 4, 14 and 24 constituted by arranging a plurality of core pieces in a circular shape; and stators 3, 13 and 23 having the stator cores. The method of manufacturing the permanent magnet-type rotary machine includes a step of combining and arranging two types of core pieces so that magnetic flux density distribution of magnetic flux flowing between the rotator and the stator becomes equal every time the rotator rotates by an angle obtained by dividing one-turn rotation angle 360° by the least common multiple of the number of poles 2n of the permanent magnet and the number of slots 3n of the stator. COPYRIGHT: (C)2010,JPO&INPIT
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