| 摘要 |
<p>A rotor (68) includes a circular rotor core (66), a plurality of ¸ magnets (28), and ring-shaped Z magnets (60). The rotor core (66) has a plurality of magnet holding sections formed radially with a rotating shaft as the center. The ¸ magnets (28) are contained in and held by the magnet holding sections such that the same magnetic poles of adjacent magnets face each other in a circumferential direction of the rotor core. The rotor core (66) is such that N-poles and S-poles are alternately formed in a circumferential direction of an outer circumferential surface of the rotor core. The Z magnets (60) are such that N-poles and S-poles are alternately formed circularly on an opposed face of the auxiliary magnet facing an end face of the rotor core in a direction of the rotating shaft.</p> |
