| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary electric machine which reduces cost and improves reliability while maintaining high torque and high output by suppressing magnetic flux leakage and demagnetization of permanent magnets.SOLUTION: A permanent magnet type rotary electric machine comprises: a stator 12 including a stator core 16; and a rotor 14 including a rotor core 24, a plurality of magnet embedding holes 32a, 32b formed in the rotor core and a plurality of permanent magnets 26a, 26b disposed in a radial direction of the rotor core. The magnet embedding hole has a center on a magnetic pole central axis of the rotor and is formed arcuate to protrude to a central side of the rotor. In the inner circumferential side magnet embedding hole, the rotor core includes two inner circumferential side support protrusions 34 which protrude into the magnet embedding hole in both end portions away from the magnetic pole central axis, and a center lock structure part 50 provided in the inner circumferential side magnet embedding hole on the magnetic pole central axis. The two permanent magnets embedded at both sides of the center lock structure part are held by engaging both end portions in an arcuate direction to the center lock structure part and one support protrusion. |
