Hard disk drive cover with protruding blades for reducing disk and HGA vibration
First Claim
Patent Images
1. A hard disk drive comprising:
- a housing including a base and a cover connected to the base;
a spindle motor connected to the base;
a disk mounted to the spindle motor and rotating with respect to the base;
an actuator rotatably connected to the base and including a slider supported by the actuator and a magnetic head mounted on a front end of the slider, the magnetic head writing and/or reading data to and/or from the disk; and
a plurality of blades protruding from at least one of a surface of the base or a portion of the cover facing the disk, and guiding an air flow, caused by rotation of the disk, toward an outer edge of the disk, wherein a side surface of the blade on which the air flow caused by the rotation of the disk is incident is inclined to guide the air flow to a surface of the disk;
wherein the blades are spiral-shaped in a direction opposite to rotation of the disk.
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Abstract
A hard disk drive having a housing with a base and a cover connected to each other, a spindle motor connected to the base, a disk mounted on the spindle motor and rotating with respect to the base, and an actuator rotatably connected to the base and supporting a slider with a magnetic head mounted on a front end thereof. The magnetic head writes and/or reads data to and/or from the disk. The hard disk drive also has a blade protruding from a surface of the base and/or a portion of the cover facing the disk. The blade guides an air flow caused by rotation of the disk toward an outer edge of the disk.
24 Citations
11 Claims
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1. A hard disk drive comprising:
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a housing including a base and a cover connected to the base; a spindle motor connected to the base; a disk mounted to the spindle motor and rotating with respect to the base; an actuator rotatably connected to the base and including a slider supported by the actuator and a magnetic head mounted on a front end of the slider, the magnetic head writing and/or reading data to and/or from the disk; and a plurality of blades protruding from at least one of a surface of the base or a portion of the cover facing the disk, and guiding an air flow, caused by rotation of the disk, toward an outer edge of the disk, wherein a side surface of the blade on which the air flow caused by the rotation of the disk is incident is inclined to guide the air flow to a surface of the disk; wherein the blades are spiral-shaped in a direction opposite to rotation of the disk. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cover for a hard disk drive having a base, a cover connected with the base, and an actuator rotatably connected with the base to read and/or write data from and/or to a disk, the cover comprising:
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Curved blades extending toward the disk to guide an air flow induced by rotation of the disk to an outer edge of the disk, to reduce disk vibration, one of the blades being positioned upstream of the actuator, adjacent an operating range of the actuator, to suppress vibration of the actuator, wherein a side surface of the blade on which the air flow caused by the rotation of the disk is incident is inclined to guide the air flow to a surface of the disk; Wherein the blades are spiral-shaped in a direction opposite to rotation of the disk.
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11. A hard disk drive comprising:
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a housing including a base and a cover connected to the base; a rotatable disk mounted to a spindle motor; and a plurality of blades protruding toward the disk from either surface of the base or a surface of the cover, and guiding an air flow, caused by rotation of the disk, toward an outer edge of the disk, wherein a side surface of each of the blades on which the air flow caused by the rotation of the disk is incident is inclined to guide the air flow to a surface of the disk wherein the blades are spiral-shaped in a direction opposite to rotation of the disk.
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Specification