INTERNAL PERMANENT MAGNET MOTOR AND COMPRESSOR WITH INTERNAL PERMANENT MAGNET MOTOR

摘要

The present invention provides a motor having excellent overall balance in consideration of low vibration, high efficiency and rigidity (high rotation). The inner circumference of the cylindrical yoke has a plurality of teeth formed toward the central axis, and a stator with a coil wound around the plurality of teeth, and a stator with a coil wound around the plurality of teeth, and a V-shape convexly installed inside the stator so as to be convexly arranged on the central axis side. A rotor is provided in which a plurality of magnetic poles of two permanent magnets are formed at equal intervals in the circumferential direction, and the rotor has an outer flux barrier composed of voids formed at the outer ends of each of the two permanent magnets in the radial direction and two permanent magnets. Each has an inner flux barrier consisting of voids formed at the inner ends in the radial direction, and the inner flux barriers of each of the two permanent magnets are spatially connected to each other, and the magnetic flux density of the bridge part formed outside the outer flux barrier in the radial direction is 1.8 ~ Set it to 1.9T.