Permanent magnet embedded motor, a compressor, a blower and cooling air conditioner

The present invention provides a permanent magnet embedded motor. The motor includes a stator, a rotor, a permanent magnet and a rotating shaft, by a corresponding permanent magnet divided intervals in the circumferential direction equiangularly a plurality of divided outer circumferential surface constitutes an outer circumferential surface of the rotor, the divided outer circumferential surface by the first curved surface and the second two curved surface, the first surface in the circumferential direction divided outer circumferential surface of the radial distance between the center axis of the rotor is maximized, and both ends are formed from the circumferential periphery toward the center, from the second surface divided outer circumferential surface of the circumferential center toward the circumferential direction to the ends, between the inner circumferential surface of the rotor axis as a central axis, and the radial distance between the inner circumferential surface of the stator is greater than the first curved surface of the stator arc surface is formed with radial distance from the first transfer surface, the distance between the two ends of the first and the second curved surface is smaller than the transfer direction orthogonal to the radial direction in the center of the divided outer circumferential surface of the permanent the width of the magnet.