SPINDLE MOTOR CAPABLE OF REDUCING A WARPAGE EFFECT CAUSED BY FOREIGN SUBSTANCES BY USING A FOREIGN SUBSTANCE ESCAPING GROOVE

摘要

PURPOSE: A spindle motor is provided to prevent the distortion or bound of the spindle motor caused by foreign substances.;CONSTITUTION: A stator(120) is placed in a base plate(110). A sleeve(130) is placed on a central part of the stator. A rotary axis(140) is rotatably inserted into the sleeve. A rotor(150) includes a hub(160) and a magnet(170). A mounting flange(163) is extended from a border of the hub to the outside. A disk(10) is installed in the mounting flange. A foreign substance escaping groove(165) is formed on the top of the mounting flange.;COPYRIGHT KIPO 2013