Hermetic Hard Disk Drives Comprising Integrally Molded Filters and Related Methods

• US 20120275053A1
• Filed: 04/28/2011
• Published: 11/01/2012
• Est. Priority Date: 04/28/2011
• Status: Active Application

• Current Assignee: Entrotech, Inc.
• Original Assignee: Entrotech, Inc.
• Inventors: McGuire, James E. Jr.
• Granted Patent: US 9,466,335 B2
• Time in Patent Office: Days
• US Class Current: 360/97.16
• CPC Class Codes: G11B 25/043 using rotating discs
• CPC Class Codes: G11B 33/14 Reducing influence of physical parameters, e.g. temperature change, moisture, dust
• CPC Class Codes: G11B 33/1446 Reducing contamination, e.g. by dust, debris
• CPC Class Codes: G11B 33/146 constructional details of filters
• CPC Class Codes: Y10T 29/4998 Combined manufacture including applying or shaping of fluent material

Abstract

A hermetic hard disk drive of the invention comprises: a housing comprising a base and a cover, wherein at least one of the base and the cover comprises a moldable material; at least one disk for storage of data within the housing; an actuator for reading and recording of the data on the at least one disk; and a filter comprising an integrally molded filter frame within the moldable material of the housing of the hard disk drive. Methods of forming such hard disk drives are also disclosed.

Claims

1. A hermetic hard disk drive, comprising:

a housing comprising a base and a cover, wherein at least one of the base and the cover comprises a moldable material;

at least one disk for storage of data within the housing;

an actuator for reading and recording of the data on the at least one disk; and

a filter comprising an integrally molded filter frame within the moldable material of the housing of the hard disk drive,

wherein the hard disk drive is hermetically sealed.

2. The hard disk drive of claim 1, wherein the base comprises plastic.

3. The hard disk drive of claim 2, wherein the filter frame is integrally formed in the base.

4. The hard disk drive of claim 1, wherein the cover comprises plastic.

5. The hard disk drive of claim 4, wherein the filter frame is integrally formed in the cover.

6. The hard disk drive of claim 1, wherein the filter frame is integrally formed in the base.

7. The hard disk drive of claim 1, wherein the filter frame is integrally formed in the cover.

8. The hard disk drive of claim 1, wherein the filter comprises an adsorbent filter.

9. The hard disk drive of claim 1, wherein the filter comprises activated carbon.

10. The hard disk drive of claim 1, wherein the filter comprises silica gel.

11. The hard disk drive of claim 1, wherein the filter comprises woven, cloth-based activated carbon media.

12. The hard disk drive of claim 1, wherein the filter comprises a permeable membrane sealing a filter insert within the filter frame.

13. The hard disk drive of claim 1, wherein at least one side of the filter frame extending toward an interior of the housing is contiguous with a side of the housing.

14. The hard disk drive of claim 1, wherein two sides of the filter frame extending toward an interior of the housing are contiguous with adjacent sides of the housing.

15. The hard disk drive of claim 1, wherein each side of the filter frame extending toward an interior of the housing is detached from sides of the housing.

16. A method of forming the hermetic hard disk drive of claim 1, the method comprising steps of:

molding the filter frame within the moldable material of the housing of the hard disk drive;

inserting a filter insert within the filter frame;

assembling the housing around internal components comprising the at least one disk, the actuator, and the filter; and

hermetically sealing the hard disk drive.

17. The method of claim 16, further comprising the step of sealing the filter insert within the filter frame using a permeable membrane to form the filter.

18. The method of claim 17, wherein the permeable membrane is heat staked over the filter insert enclosed within the filter frame.

19. The method of claim 16, wherein the step of molding the filter frame within the moldable material of the housing of the hard disk drive comprises injection molding.

20. The hard disk drive of claim 1, wherein a path of air flow through the filter is wholly contained within the hermetic hard disk drive.