SUPER-HIGH SPEED SLOTLESS MOTOR

摘要

PURPOSE: A super-high speed slotless motor is provided to not only prevent a coil from being removed from a housing but also easily obtain air gap flux density. CONSTITUTION: The super-high speed slotless motor comprises a rotor magnet(53) fixed on a rotor shaft(52); a stator coil(51) bonded on an inner surface of a housing 50 and spaced away from the rotor magnet(53) at a predetermined gap; and a stator ring(1) disposed between the magnet(53) and the stator coil(51). The stator ring(1) is spaced away from the magnet(53) while biasing the stator coil(51). The stator ring(1) is made of a material which has high magnet permeability.