Synchronous reluctance motor with permanent magnet saturated magnetic bypass path

摘要

A synchronous reluctance motor includes a stator and a rotor. The rotor is configured to rotate about the axis of rotation relative to the stator. The rotor is spaced from the stator to define an air gap between the stator and the rotor, and includes a rotor core defining an outermost rotor surface and an innermost rotor surface opposite the innermost rotor surface. The rotor core includes a plurality of fins separating the rotor cavities and includes a plurality of rotor bridges separating the air gap and the rotor cavities. Permanent magnets are each arranged in one of the rotor cavities. The magnetic surface area of the permanent magnets is smaller than the cavity surface area of the rotor cavities. Each of the permanent magnets is adjacent to the outermost rotor surface to maximize magnetic saturation at the fins and rotor bridges.