Patent ID: 6509666
Filing Date: 2003-01-21
Classification: H02K

Abstract:
A motor structure comprising:a base; a stator, comprising: a coil assembly being mounted on said base, including: a ring-shaped slot having an inner periphery on its inner side and an outer periphery on its outer side away from said periphery; a plurality of first teeth mounted around said inner periphery of said ring-shaped slot; a plurality of second teeth mounted around said outer periphery of said ring-shaped slot, wherein said first teeth and said second teeth being radially aligned; and a coil wound in said ring-shaped slot; a static shaft substantially perpendicular to and fixed on said base; and a ring-shaped groove being formed around said static shaft; a rotor, including: a circular magnet located above said coil; a hub in which a through hole is formed; a metal sheet arranged between said hub and said circular magnet; and a bearing positioned in said through hole and being penetrated by said static shaft; an engagement ring positioned in said through hole and on said bearing for fixing said bearing; and an elastic ring positioned in said ring-shaped groove for elastically fixing said bearing.