Screw-type spacer in a disk drive system
AssigneeSamsung Electronics Co., Ltd.
InventorSeong Hoon Kim
Life of this patent
Estimating the term…
Abstract
The inventors have found that by changing the outer wall shape of at least disk spacer, the air flow of the relevant inner region is disrupted, causing particulate adhesion to be minimized. The air flow disruption acts to blow more air through the inner region, effectively moving particles away from the inner region rather than retaining these particles. The inventors call disk spacers with outer wall shapes disrupting inner region air flow, screw-type spacers.
Claims17
A disk drive, comprising:
- a disk assembly rotating about an axis of rotation, including:
- a screw-type spacer separating a first disk and a second disk creating an inner region between said first disk and said second disk surrounding said outer wall and surrounding all members of a blade collection;
- wherein said screw-type spacer, includes:
- a first blade extending out from an outer wall;
- and
- a second blade extending out from said outer wall;
- wherein said blade collection is comprised of said first blade and said second blade;
- wherein all of said blade collection members collectively provide said screw-type spacer with a symmetric mass distribution about said axis of rotation;
- and
- wherein said blade collection member acts to disrupt air flow in said inner region when said disk assembly is rotated to blow particles in said inner region away from said inner region, for each of said blade collection members.
A screw-type spacer for a disk drive rotating assembly comprising:
- a first blade extending out from an outer wall;
- and
- a second blade extending out from said outer wall;
- wherein all members of a blade collection collectively provide said screw-type spacer with a radially symmetric mass distribution about a center of mass of said screw-type spacer;
- wherein said blade collection is comprised of said first blade and said second blade.
A method of making a disk drive comprising the steps of:
- placing said screw-type spacer between a first disk and a second disk to create said disk drive.
A method of a disk drive rotating a disk assembly including an outer wall with at least two members of a blade collection extending outward from said outer wall, comprising the steps of:
- said blade collection member disrupting air flow in an inner region formed between two disks abutting said outer wall, for each of said blade collection members;
- wherein the step of said blade collection member disrupting air flow in said inner region, for each of at least two of said blade collection members, is further comprised of the steps of:
- said blade collection member acting upon said air to form a blowing effect region within said inner region;
- and
- said blowing effect region imparting to a particle within said inner region a tendency to move away from said inner region;
- wherein said rotating disk assembly has an axis of rotation;
- and
- wherein said rotating disk assembly mass is symmetrically distributed about said axis of rotation.
Dependencies are inferred from the claim text.