Actuator of hard disk drive
AssigneeSamsung Electronics Co., Ltd.
InventorSang-chul Shin
Life of this patent
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Abstract
An actuator of a hard disk drive (HDD). The actuator includes an actuator arm installed to be rotatably connected to a base plate of the HDD and having a pivot hole, a VCM (voice coil motor) coil connected to a rear portion of the actuator arm, upper and lower yokes respectively installed upper and lower the VCM coil, a VCM motor having a magnet provided therebetween; and a flexible printed circuit for driving the actuator. Here, a boss is formed at the actuator arm to be face the base plate and to be connected to the flexible printed circuit.
Claims14
An actuator of a hard disk drive (HDD), comprising:
- an actuator arm rotatably connected to a base plate of the HDD and having a pivot hole;
- a voice coil motor (VCM) coil connected to a rear portion of the actuator arm;
- upper and lower yokes respectively installed above and below the VCM coil;
- a VCM motor having a magnet provided between the yokes;
- and
- a flexible printed circuit for driving the actuator, wherein a boss is formed at the actuator arm, facing the base plate, and connected to the flexible printed circuit.
A hard disk drive (HDD), comprising:
- an actuator arm;
- a voice coil motor (VCM) coil connected to a rear portion of the actuator arm;
- a boss extending from the rear portion of the actuator arm, connected to the VCM coil, and to which a lead wire is connected;
- and
- a clip forming a slot between the clip and the rear portion of the actuator arm, the slot retaining the lead wire.
An actuator, comprising:
- a voice coil motor (VCM) coil connected to a rear portion of an actuator arm;
- an upper yoke disposed above the VCM coil and having a step-type protrusion formed on an inner surface thereof;
- a lower yoke disposed below the VCM coil;
- and
- a VCM motor having a magnet provided between the yokes,
- wherein the step-type protrusion is proximate to a neutral line of the magnet so as to block a leakage flux from the magnet.
A method of assembling an actuator, comprising:
- inserting a lead wire into a slot formed between a clip attached to a rear portion of an actuator arm and the actuator arm, the lead wire connected at an end to a flexible printed circuit;
- and
- connecting another end of the lead wire to a boss extending from the rear portion of the actuator arm and connected to a voice coil motor (VCM) coil.
Dependencies are inferred from the claim text.