SYSTEM AND METHOD FOR REDUCING TORQUE RIPPLE IN AN INTERIOR PERMANENT MAGNET MOTOR

摘要

An interior permanent magnet motor comprises a rotor assembly disposed within a stator assembly. The rotor assembly is configured for rotating about a central axis relatively to the stator assembly. The rotor assembly defines a plurality of magnet pockets within the rotor assembly along a radially outboard surface of the rotor assembly. Each magnet pocket is substantially rectangular in cross-sectional shape, and each magnet pocket is configured to facilitate insertion of a plurality of permanent magnets into and retention of the plurality of permanent magnets within, the magnet pocket. The rotor assembly further comprises a plurality of permanent magnet segments disposed in each magnet pocket.

主权项

1. An interior permanent magnet motor comprising:
a rotor assembly disposed within a stator assembly; the rotor assembly being configured for rotating about a central axis relatively to the stator assembly; the rotor assembly defining a plurality of magnet pockets within the rotor assembly along a radially outboard surface of the rotor assembly, each magnet pocket being substantially rectangular in cross-sectional shape, and each magnet pocket being configured to facilitate insertion of a plurality of permanent magnets into and retention of the plurality of permanent magnets within, the magnet pocket; the rotor assembly further comprising a plurality of permanent magnet segments disposed in each magnet pocket.