MAGNETIC ALIGNMENT SYSTEMS AND METHODS FOR PERMANENT MAGNET MOTORS

Abstract: a system for manufacturing a rotor for a permanent magnet (pm) motor is provided. the system includes a mold configured to receive a rotor body including a plurality of rotor teeth and defining one or more rotor cavities and a plurality of electromagnetic coils including a plurality of magnetic cores, each of the plurality of magnetic cores configured to align with a respective one of the plurality of rotor teeth, and a plurality of electromagnetic windings. the system further includes a controller configured to, after the rotor body is positioned within the mold, close the mold, after closing the mold, excite the plurality of electromagnetic coils, inject a magnetic material into the one or more rotor cavities, wherein the excited electromagnetic coils align the magnetic material into a desired magnetic orientation prior to solidification of the magnetic material, de-energize the plurality of electromagnetic coils.

Inventor(s): Darren Tremelling, Will Eakins, Christian White, Sheng Zhong, Elio Perigo

CPC Classification: H02K15/03 (having permanent magnets)

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