Rotating electrical machine with permanent magnet inserts

摘要

In one embodiment of the present invention, a rotor (10) for an electrical machine comprises a first pole piece (12) and a second pole piece (14) together defining an axis of rotation of the rotor, each pole piece (12,14) comprising a generally disc-shaped body (16) having a circumference. Each pole piece further has a plurality of angularly-spaced pole fingers (18) extending axially from the circumference of the body of the pole piece. The rotor additionally includes a plurality of permanent magnets (34), each permanent magnet affixed to a body (16) of a pole piece between two pole fingers of the pole piece. <IMAGE>