Patent ID: 7289301

Claim:
A voice coil motor coupling structure of a hard disk drive for coupling a voice coil motor to a base plate of the hard disk drive, the voice coil motor including a coil coupled to a rear end portion of an actuator arm, an upper yoke and a lower yoke provided at upper and lower portions of the coil, respectively, separated at a predetermined distance from the coil, and a magnet attached to the lower surface of the upper yoke, the voice coil motor coupling structure comprising: a countersink formed in the lower yoke; a countersunk head screw inserted in the countersink and coupled to a screw coupling hole provided in the base plate to fix the lower yoke to the base plate; boss insertion holes formed in each of the lower and upper yokes respectively at both end portions in a lengthwise direction; bosses protruding from the base plate and inserted in the boss insertion holes; and screws inserted in the boss insertion holes and coupled to respective screw coupling holes provided at each boss, fixedly coupling the upper yoke to the lower yoke.