Spindle motor

摘要

A spindle motor is provided, the motor including a bearing assembly including an upper surface-opened cylindrical bearing housing and a bearing accommodated in the bearing housing and formed with a rotation shaft hole; a stator including a core coupled to a periphery of the bearing housing and a coil wound on the core; a rotation shaft inserted into the rotation shaft hole; a rotor including a disk-shaped yoke coupled to the rotation shaft and a magnet coupled to the yoke to face the core; and a suction magnet arranged at the yoke facing the core, wherein the bearing housing includes a body coupled to the core and a core fixture bent from the body to face the core, and the suction magnet is so arranged as to face the core fixture corresponding to an external side of a bent unit bent from the body for forming the core fixture.

主权项

1. A spindle motor, comprising:
a bearing assembly including an upper surface-opened cylindrical bearing housing, a bearing accommodated in the bearing housing, and a rotation shaft hole formed in the bearing; a stator including a core coupled to a periphery of the bearing housing and a coil wound on the core; a rotation shaft inserted into the rotation shaft hole; a rotor including a disk-shaped yoke coupled to the rotation shaft and a magnet coupled to the yoke to face the core; and a suction magnet arranged at the yoke facing the core; wherein the bearing housing includes a body coupled to the core and a core fixture bent to a direction facing an outside of the body to face the core, wherein the core fixture includes a first portion vertically bent from the body, a second portion vertically bent from the first portion, and a ring-shaped sill formed at an upper surface of the first portion of the core fixture adjacent to the second portion of the core fixture; and wherein the suction magnet faces the first portion of the core fixture.