Patent ID: 6072262
Filing Date: 2000-06-06
Classification: H02K

Abstract:
A slot-less motor for super high speed driving, the slot-less motor employing a housing containing a stator coil to form a stator, and a rotor magnet fixed to a rotor shaft to maintain an air gap from the stator coil, wherein the slot-less motor further comprises:a stator ring disposed between the rotor magnet and the stator coil and formed with an inner radius larger than an outer radius of the rotor magnet, an outer circumference of the stator compressing the stator coil to thereby cause the stator coil to be fixed and maintained in a predetermined space; andcoupling means for causing the stator ring to be fixed and positioned between the housing and a housing cap so as to position an outer circumferential surface of the rotor magnet at a uniform distance from an inner circumferential surface of the stator coil.