Hard drive carrier design permitting floating retention of a connector assembly to facilitate blind mating of the connector assembly in a hard drive bay

• US 5,652,695 A
• Filed: 05/05/1995
• Issued: 07/29/1997
• Est. Priority Date: 05/05/1995
• Status: Expired due to Term

• Current Assignee: Dell USA LP (Dell Technologies Inc.)
• Original Assignee: Dell USA LP (Dell Technologies Inc.)
• Inventors: Schmitt, Ty
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Gandhi, Jayprakash N.
• Application Number:
  US08/435,895
• Time in Patent Office: 816 Days
• Field of Search: 361/683-685, 439/95, 439/159, 439/928.1
• US Class Current: 361/679.31
• CPC Class Codes: G11B 33/126 Arrangements for providing electrical connections, e.g. connectors, cables, switches
• CPC Class Codes: G11B 33/128 of the plurality of recording/reproducing devices, e.g. disk drives, onto a chassis

Abstract

A one-piece carrier body is disclosed for floatingly supporting a removable hard drive in a hard drive bay of a computer system. A printed wire assembly (PWA) board or card mounts on the carrier to provide an interface connection between the hard drive and internal connectors in the hard drive bay. The carrier body has a connector end for receiving the PWA board, which includes side guide channels that are molded using a reverse draft through core-outs in the carrier base. The side channels have a general trapezoidal shape, with a wide base portion and a narrow top portion. The connector end of the carrier body also includes a front lip and a transverse rib defining a guide channel on the base of the carrier body. The endpoints of the narrow top portion of the side guide channels align in the same plane as the base of the front lip and the rib, respectively, to prevent the PWA board from tilting after it is inserted in the connector end. The side guide channels and the base guide channel are designed with clearance for the board to permit the PWA board to float in the x, y, and z directions to facilitate blind mating of the connectors on the PWA board to the internal connectors in the hard drive bay. In addition, a pair of spring ground contacts are provided to bias the PWA card in the z direction to enable the PWA board to engage the internal connectors regardless of the positioning of the PWA board in the base guide channel.

Claims

1. A carrier body for supporting a hard drive, comprising:

a pair of side members located at a first end of said carrier body, said side members having side guide channels formed therein;

said side guide channels having a base portion, and a narrower top portion, and said side members having a shoulder at the top of the side guide channels;

a connector board positioned in said carrier body, with each side of the connector board positioned in said side guide channels, and the upper corners of said connector board positioned below the shoulders on said side members; and

wherein said carrier body is molded as a single piece of plastic.

2. A carrier body as in claim 1, wherein said carrier body includes a base.

3. A carrier body as in claim 2, further comprising core-out sections in said base which are used to mold said side guide channels.

4. A carrier body as in claim 3, further comprising a front lip and a rib integrally molded as part of the base to define a base guide channel for receiving the lower edge of said connector board.

5. A carrier body as in claim 4, wherein said base guide channel has a width greater than the thickness of said connector board to provide float for the bottom edge of said connector board in the z direction.

6. A carrier body as in claim 2, wherein the shoulder is positioned at a height above the base of the carrier body which is greater than the height of the connector board to provide a float for the connector board in the y direction.

7. A carrier body as in claim 1, wherein said side guide channels have a width that is greater than the thickness of the connector board to provide float for the connector board in the z direction.

8. A carrier body as in claim 7, further comprising a grounding structure within the carrier body.

9. A carrier body as in claim 8, wherein the grounding structure includes a grounding spring which contacts the connector board and biases the connector board in the z direction.

10. A carrier body as in claim 9, wherein the grounding spring connects electrically to a grounding pad on the connector board.

11. A carrier body as in claim 10, further comprising a second grounding spring for biasing the connector board in the z direction.

12. A carrier body as in claim 11, wherein the grounding springs provide sufficient force to enable the connector board to mate with an internal connector.

13. A carrier body as in claim 12, wherein said grounding springs will yield if the connector board is not properly mated with the internal connector.

14. A carrier body as in claim 1, wherein side guide channels have a depth to provide float for the connector board in the x direction.

15. A carrier body for supporting a hard drive, comprising:

a carrier body base;

a pair of side members located at a first end of said carrier body, said side members having side guide channels formed therein;

said side guide channels having a base portion, and a narrower top potion, and said side members having a shoulder defining a stop at the top of the side guide channels;

a connector board positioned in said carrier body, with each side of the connector board positioned in said side guide channels, and the upper corners of said connector board positioned below the shoulders on said side members;

a guide channel formed in the carrier body base; and

a grounding structure positioned in said carrier body, said grounding structure including a grounding spring that biases said connector board forwardly in said base guide channel.

16. A carrier body as in claim 15, wherein said base guide channel is defined by a rib and a lip that are integrally molded in the carrier body base.

17. A carrier body as in claim 15, wherein said base guide channel has a width that is greater than the width of the connector board to provide a clearance for the connector board, and said grounding spring enables the connector board to mate with a remote connector at any position within the base guide channel.

18. A carrier body as in claim 17, wherein said connector board includes a connector on its front face for mating with the remote connector.

19. A carrier body as in claim 18, wherein the remote connector is located in a hard drive bay in a computer.

20. A carrier body as in claim 18, wherein the connector board includes a ground pad on its back face for connecting electrically to said grounding spring.

21. A carrier body as in claim 15, wherein the carrier body is molded as a one-piece structure.

23. A carrier body as in claim 21, wherein said connector board assumes a vertical position in said guide channel.

22. A carrier body for supporting a hard drive, comprising:

a carrier body base;

a pair of side members located at a first end of said carrier body, said side members having side guide channels formed therein;

said side guide channels having a base portion, and a narrower top portion, and said side members having a shoulder defining a stop at the top of the side guide channels;

a connector board positioned in said carrier body, with each side of the connector board positioned in said side guide channels, and the upper corners of said connector board positioned below the shoulders on said side members;

a guide channel formed in the base of said carrier body between a lip in a front face of said carrier body, and a rib in the base of said carrier body, the rib having a rib base and the lip having a lip base; and

wherein the narrower top portion of said side guide channel defines a first and second endpoint, and said first endpoint lies in the same vertical plane as the lip base, and the second endpoint lies in the same vertical plane as the rib base.

24. A carrier body as in claim 22, further comprising a grounding structure positioned in said carrier body, said grounding structure including a grounding spring that biases said connector board forwardly in said base guide channel.

25. A carrier body as in claim 24, wherein said grounding structure also includes a side clip for connecting to a system ground.

26. A carrier body as in claim 22, wherein said carrier body is molded as a one-piece structure.

27. A carrier body as in claim 22, wherein said side channels, said stop, and said base guide channel all are designed with clearances to permit the connector board to float three-dimensionally in said carrier body.

28. A computer system comprising:

a processor;

a memory coupled to the processor;

a hard drive coupled to the processor and the memory; and

a carrier body for supporting the hard drive, further comprising;

a pair of side members located at a first end of the carrier body, the side members having side guide channels formed therein;

the side guide channels having a base portion, and a narrower top portion, and the side members having a shoulder at the top of the side guide channels; and

a connector board positioned in the carrier body, with each side of the connector board positioned in the side guide channels, and the upper corners of the connector board positioned below the shoulders on the side members;

wherein the carrier body is molded as a single piece of plastic and wherein the hard drive is attached to the carrier body, the hard drive being coupled to the connector board, and the connector board being coupled to the processor.