Patent ID: 7629724
Filing Date: 2009-12-08
Classification: H02K

Abstract:
1. An axial air-gap electronic motor in which a teeth surface of a stator and a magnet surface of a rotor are arranged opposedly with a predetermined gap being provided therebetween along an axis line direction of an output shaft of the rotor, wherein the rotor has a rotor back yoke arranged coaxially with the stator and having a through hole or a notch portion at an outer periphery thereof, and a rotor magnet formed of a moldable magnet material and installed to the rotor back yoke so as to face the teeth surface of the stator, the rotor magnet is provided with an anchor magnet which is integrally molded with the rotor magnet through the through hole or the notch portion and is arranged on a back surface side of the rotor back yoke, and the anchor magnet covers the through hole or the notch portion to prevent the rotor magnet from being removed from the rotor back yoke.