Flexible printed circuit board stiffener for hard disk drive
AssigneeHGST Netherlands B.V.
InventorsAndre Chan, Raymond Quines, Edgar Rothenberg, Taeyong Yoon
Life of this patent
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Abstract
Described herein is a magnetic storage device that includes at least one magnetic disk, at least one armature rotatably movable relative to the at least one magnetic disk, and a transducer head coupled to the armature. The magnetic storage device further includes a stiffener that is coupled to the armature. The stiffener includes at least one arm having a flexible printed circuit board (FPCB) portion and a deflection portion angled relative to the FPCB portion. The magnetic storage device also includes an FPCB coupled to the stiffener.
Claims16
A magnetic storage device, comprising:
- at least one magnetic disk having a circular-shaped outer periphery;
- at least one armature rotatably movable relative to the at least one magnetic disk;
- a transducer head coupled to the armature;
- a stiffener coupled to the armature, the stiffener comprising at least one arm having a flexible printed circuit board (FPCB) portion and a deflection portion angled relative to the FPCB portion, the deflection portion extending from the FPCB portion tangentially relative to the circular-shaped outer periphery of the at least one magnetic disk, wherein the deflection portion comprises a deflection surface facing the at least one magnetic disk and a back surface opposing the deflection surface, and wherein an entirety of the deflection surface and the back surface define an acute angle with the FPCB portion;
- and
- an FPCB coupled to the stiffener.
A flexible printed circuit board (FPCB) stiffener for a magnetic storage device, comprising:
- a base;
- and
- a plurality of spaced-apart arms extending from the base, each arm comprising an FPCB portion and a deflection portion angled relative to the FPCB portion;
- further comprising a FPCB receiver extending from a first side of the base, the plurality of arms extending from a second side of the base, wherein the first side is opposite the second side;
- and
- wherein the FPCB receiver extends in a first direction away from the base and the deflection portion extends in a second direction away from the base, the first direction being substantially opposite the second direction.
An actuator assembly for a magnetic storage device, comprising:
- a plurality of vertically-stacked armatures co-rotatably driven by a servo motor;
- a stiffener coupled to the plurality of vertically-stacked armatures, the stiffener comprising a base plate and a plurality of arms extending lengthwise from the base plate, wherein the plurality of arms each comprises a flexible printed circuit board (FPCB) portion and a deflection portion that is angled with respect to the FPCB portion, wherein a width of the FPCB portion is the same as the width of the deflection portion and a thickness of the FPCB portion is the same as the thickness of the deflection portion, and wherein the base plate and FPCB portions of the arms are positioned along a side of the plurality of vertically-stacked armatures, and wherein the deflection portions of the arms are positioned and extend transversely between adjacently-stacked armatures;
- and
- an FPCB comprising a base portion and a plurality of arms, wherein the base portion is supported on the base plate of the stiffener and each of the plurality of arms of the FPCB is supported on a respective one of the plurality of arms of the stiffener.
Dependencies are inferred from the claim text.