PERMANENT MAGNET ROTATION TYPE ROTARY ELECTRIC MACHINE AND MANUFACTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To reduce a cogging torque and a noise element in order to prevent breakdown of a permanent magnet rotation type rotor formed of a low price material with a centrifugal force. SOLUTION: A magnet inserting hole 6 is provided in the plural numbers along the circumferential direction at the area near the external circumference of a laminated rotor core 3, the magnet inserting holes 6 are divided to the plural portions in the axial direction with the shift as much as the predetermined angle in the respective circumferential direction, and the permanent magnets are allocated within the magnet inserting holes 6 and fixed to the laminated rotor core 3 with a gap filling agent 7 filling the gap against the magnet inserting holes 6.