Patent ID: 8502430
Filing Date: 2013-08-06
Classification: H02K

Abstract:
1. A rotor comprising: a rotor core; a plurality of magnetic poles arranged in a circumferential direction of the rotor core, wherein each magnetic pole has a field magnet that serves as a first magnetic pole, wherein the field magnet is a main magnet; a plurality of salient poles, wherein each salient pole is integrally formed with the rotor core between the two adjacent magnetic poles, wherein each salient pole serves as a second magnetic pole, wherein the pole of the second magnetic pole is opposite from that of the first magnetic pole; and a plurality of auxiliary magnets each of which is disposed between the magnetic pole and the adjacent salient pole, wherein the auxiliary magnet generates magnetic flux in a circumferential direction of the rotor core so that the magnetic pole and an opposing pole of the auxiliary magnet have the same polarity and the salient pole and another opposing pole of the auxiliary magnet have the same polarity.