A magneto motor in which the heat generated by an armature (5) is effectively released to the external side in order to restrain the temperature rise of a main magnetic pole (3) which consists of a permanent magnet. A material (6) or (7) having a heat conductivity greater than that of the main magnetic pole (3) is closely arranged between the main magnetic poles (3) or between the main magnetic pole (3) and an auxiliary magnetic pole (4). The heat is favorably released through the material (6) or (7).
