PERMANENT MAGNET MOTOR

摘要

A permanent magnet (PM) motor includes a stator defining an inner stator opening. The inner stator opening extends along a stator axis. The PM motor further includes a rotor disposed inside the stator. The rotor is rotatable about the stator axis relative to the stator. The stator includes a plurality of lamination segments stacked together along the stator axis. Each lamination segment includes: an annular stator body; and a plurality of teeth extending from the annular stator body toward the stator axis. The teeth are spaced apart from one another to define a plurality of slots arranged annularly about the stator axis. The stator defines a plurality of slot openings arranged annularly about the stator axis. At least one of the lamination segments is rotationally offset relative to another lamination segments so that at least one of the slot openings is circumferentially offset from another slot openings in the other lamination segment.