Patent ID: 7673380

Claim:
A method for making a rotor for a permanent magnet motor, the method comprising preparing a rotor body for emplacement of magnets thereon, the rotor body having a first end spaced-apart from a second end, the rotor body having a generally cylindrical shape with an interior surface and an exterior surface, the rotor body made of magnetic material, applying a plurality of magnets to the interior surface of the rotor body, the magnets held to the rotor body by magnetic force, and emplacing a shunt structure over the plurality of magnets to inhibit inter-magnet action wherein the plurality of magnets includes at least a first magnet, a second magnet, and a third magnet, and the shunt structure includes a shunt bar, the method further comprising placing the first magnet on the interior surface of the rotor body, placing the second magnet on the interior surface of the rotor body, placing the shunt bar on the first magnet and the second magnet, and placing the third magnet between the first magnet and the second magnet.