Patent ID: 9083216
Filing Date: 2015-07-14
Classification: H02K,Y10T

Abstract:
1. A motor comprising: a first motor unit including a first rotor and a first stator, a second motor unit including a second rotor and a second stator, and a third motor unit including a third rotor and a third stator, wherein the first motor unit, the second motor unit, and the third motor unit are arranged along an axial direction of the motor, the second rotor is arranged deviated from the first rotor in a first circumferential direction, and the third rotor is arranged deviated from the second rotor in the first circumferential direction, the second stator is arranged deviated from the first stator in a second circumferential direction that is opposite to the first circumferential direction, and the third stator is arranged deviated from the second stator in the second circumferential direction, each of the first rotor, the second rotor, and the third rotor includes each of the plurality of first claw magnetic poles of the first rotor core includes a distal end projecting from the outer circumferential surface of the first rotor core base toward an outer side in a radial direction, wherein each of the plurality of first claw magnetic poles of the first rotor core is bent from the distal end and extended along the axial direction toward the field magnet, each of the plurality of second claw magnetic poles of the second rotor core includes a distal end projecting from the outer circumferential surface of the second rotor core base toward an outer side in a radial direction, wherein each of the plurality of second claw magnetic poles of the second rotor core is bent from the distal end and extended along the axial direction toward the field magnet, the plurality of first claw magnetic poles of the first rotor core and the plurality of second claw magnetic poles of the second rotor core are alternately arranged along a circumferential direction of the motor, the field magnet is magnetized along the axial direction so that the plurality of first claw magnetic poles and the plurality of second claw magnetic poles function as different magnetic poles, each of the first stator, the second stator, and the third stator includes the plurality of first claw magnetic poles of the first stator core and the plurality of second claw magnetic poles of the second stator core are alternately arranged along the circumferential direction of the motor, and are configured to oppose the plurality of first claw magnetic poles of the first rotor core and the plurality of second claw magnetic poles of the second rotor core, and the stator is configured so that, when the coil section is supplied with power, the plurality of first claw magnetic poles of the first stator core and the plurality of second claw magnetic poles of the second stator core become different magnetic poles and so that polarities thereof are switched.