Patent ID: 9490671
Filing Date: 2016-11-08
CPC Classification: H02K

Claim Text:
1. A rotor having an axial direction and a radial direction, comprising a plurality of pairs of rotor cores arranged in the axial direction, and field magnets, each of which is located between the rotor cores of a pair and magnetized in the axial direction, wherein each of the rotor cores includes a disk-shaped core base, and a plurality of claw poles extending in the radial direction from an outer periphery of the core base and extending in the axial direction, first and second rotor cores of each pair of the rotor cores are arranged such that the claw poles of the first rotor core and the claw poles of the second rotor core extend in directions opposite from each other in the axial direction and such that the claw poles of the first rotor core and the claw poles of the second rotor core are alternately arranged in the circumferential direction, and the rotor cores having the same polarities are adjacent to each other and arranged such that the rotor cores are deviated from each other in the circumferential direction.