Docking connector for disk drives

• US 5,211,566 A
• Filed: 08/11/1992
• Issued: 05/18/1993
• Est. Priority Date: 08/11/1992
• Status: Expired due to Term

• Current Assignee: AMP Incorporated (Johnson Controls International plc)
• Original Assignee: AMP Incorporated (Johnson Controls International plc)
• Inventors: Johnson, David C., Volz, Keith L., Bates, Warren A., Deak, Frederick R., Renn, Robert M.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US07/929,185
• Time in Patent Office: 280 Days
• Field of Search: 439/59-62, 439/67, 439/76, 439/77, 439/136, 439/138, 439/142, 439/259, 439/260, 439/261, 439/267, 439/326, 439/342, 439/376, 439/377, 439/493, 439/840, 439/927, 439/928 , 439/936, 439/66, 439/638, 439/650, 439/653
• US Class Current: 439/66
• CPC Class Codes: G11B 33/122 Arrangements for providing electrical connections, e.g. connectors, cables, switches
• CPC Class Codes: H01R 12/721 cooperating directly with the edge of the rigid printed circuits
• CPC Class Codes: H01R 12/82 connected with low or zero insertion force
• CPC Class Codes: Y10S 439/936 Potting material or coating, e.g. grease, insulative coating, sealant or, adhesive

Abstract

A docking assembly including a guide housing (2) and camming assembly (38, 54 and 40) for mechanically interfacing a modular component (46) with a circuit board to thereby complete and protect multiple electrical connections therebetween. An interfacing connector (80) is also disclosed for providing an electrical and mechanical interface between a circuit board and a disk drive (82). The interfacing connector (80) allows high-density multiple electrical interconnections to the circuit board by the use of canted coil springs (100) for direct electrical contact with individual traces and/or contact pads on the circuit board. The interfacing connector (80) may also include a docking assembly (130) with guide channels (136) for guiding insertion of a circuit board to thereby insure the integrity of the electrical interconnections therebetween.

Claims

1. A docking connector for providing an interface between a circuit board having a plurality of traces arranged along an edge, and a modular electrical component such as a disk drive having a plurality of contact terminals for completing a multiple-electrical-connection interface with said circuit board, said docking connector comprising:

a guide housing formed as an open-ended enclosure with a first end for slidable insertion of said modular component and a second end for slidable insertion of the edge of said circuit board, said guide housing further comprising interior alignment means for guiding insertion of said modular component such that said plurality of contact terminals are brought into a facing spaced-relation with said plurality of traces along said circuit board edge; and

a camming assembly pivoted at the first end of said guide housing for manipulating said modular component to thereby bring said plurality of contact terminals into electrical contact with said plurality of traces along said circuit board edge, thereby completing an electrical interface between said circuit board and said modular component.

2. The docking connector according to claim 1, further comprising a protective cover pivoted upwardly of the second end of said guide housing and overlying said second end for protecting the interior of said guide housing in absence of said circuit board.

3. The docking connector according to claim 1, further comprising a pair of mounting ears projecting from said second end of said guide housing for anchoring said guide housing to a circuit board inserted therein.

4. The docking connector according to claim 2, wherein a projecting edge of said protective cover is angled outward from said guide housing to provide a blunted contact surface against said circuit board.

5. The docking connector according to claim 4, wherein said protective cover is provided with a strip of absorbent material adhered to said projecting edge to wipe clean said circuit board during insertion.

6. The docking connector according to claim 1, wherein said guide housing further comprises a top wall, opposing side walls, and a floor wall, and said interior alignment means further comprises an elongate indentation pressed inwardly of said guide housing across said floor wall to urge said modular component upwardly within said guide housing during insertion therein.

7. The docking connector according to claim 6, wherein said interior alignment means further comprises a compliant guide member formed in the top wall of said guide housing, said compliant guide member protruding inwardly of said guide housing to impart an opposing bias when said modular component is driven upwardly within said guide housing by said indentation during insertion.

8. The docking connector according to claim 7, wherein said camming assembly further comprises:

a camming member pivoted at the first end of said guide housing;

a door attached to said camming member to facilitate pivoting of said camming member, said door overlying said first end of said guide housing in a first position for protecting the interior of said guide housing, and said door being pivotable with said camming member to a second position wherein said first end of said guide housing is open to allow insertion of said modular component; and

a lifter bracket suspended from said camming member for embracing said modular component when said modular component is inserted in said first end of said guide housing, said lifter bracket being operated by pivoting of said door and camming member into said second position to hoist an end of said modular component, thereby causing said modular component to pivot between said compliant guide member and indentation to bring said plurality of contact terminals into electrical contact with said plurality of traces along said circuit board edge.

9. The docking connector according to claim 6, further comprising a detent mounted on each of the opposing side walls of said guide housing for maintaining lateral alignment of said modular component therein.

10. The docking connector according to claim 1, wherein said modular component is provided with a guide channel extending lengthwise in each side thereof, said guide housing further comprising a top wall, opposing side walls, and a floor wall, and said interior alignment means further comprising a pair of opposing guide pins mounted on said side walls and projecting interiorly of said guide housing, whereby said guide pins are each received in a corresponding guide channel during insertion of said modular component in said guide housing to maintain alignment therein.

11. The docking connector according to claim 10, wherein said camming assembly further comprises:

a camming member having flanking support panels, said camming member being pivoted by said support panels at the first end of said guide housing;

a door attached to said camming member to facilitate pivoting of said camming member, said door overlying said first end of said guide housing in a first position for protecting the interior of said guide housing, and said door being pivotable with said camming member to a second position wherein said first end of said guide housing is opened to allow insertion of said modular component; and

a pair of camming pins adjacent said side walls near the first end of said guide housing, said camming pins also being received in said corresponding guide channels during insertion of said modular component in said guide housing to maintain alignment therein, said camming pins each being driven by a corresponding one of said flanking support panels of said camming member when said door and camming member are pivoted into said second position to hoist an end of said modular component, thereby causing said modular component to pivot about said pair of guide pins to bring said plurality of contact terminals into electrical contact with said plurality of traces along said circuit board edge.

12. An interfacing connector for providing an electrical interface between a circuit board and a modular component such as a disk drive, said interfacing connector comprising:

a connector housing having a first ingress for insertion of a printed circuit board, a second ingress for coupling of a disk drive, and a transverse support shelf extending between said first ingress and second ingress;

a plurality of conductive terminals arranged within the second ingress of said connector housing along said shelf for completing a multiple-electrical-connection interface with said disk drive;

a plurality of canted coil springs arranged linearly within the first ingress of said connector housing at spaced intervals along an inner surface of said shelf, said canted coil springs each being connected to a corresponding one of said conductive terminals;

whereby said interfacing connector may be connected at said second ingress to said disk drive, and said circuit board may be inserted into said open first ingress of said connector housing along shelf to bring said canted coil springs into conductive contact at an appropriate point on said circuit board, thereby completing an electrical interface between said circuit board and said disk drive.

13. The interfacing connector according to claim 12, further comprising:

a plurality of contact pads linearly adhered to the first ingress of said connector housing at spaced intervals along an inner surface of said shelf, said contact pads each being connected to a corresponding one of said conductive terminals;

a flexible plate seated on said shelf at the first ingress of the connector housing and overlying said contact pads;

said plurality of canted coil springs being mounted linearly along said plate at spaced intervals corresponding to positions of said contact pads, whereby said canted coil springs are electrically connected with corresponding ones of said conductive terminals via contact at said contact pads.

14. The interfacing connector according to claim 13, wherein said shelf is provided with a plurality of mounting posts, and said flexible plate is provided with a corresponding number of holes in which said mounting posts may be inserted for aligning said plate on said shelf.

15. The interfacing connector according to claim 14, wherein said flexible plate is heat-staked to said connector housing by said mounting posts for anchoring said plate on said shelf.

16. The interfacing connector according to claim 13, wherein said shelf is formed with a plurality of channels interrupting a projecting face of shelf at the second ingress of the connector housing, and said plurality of conductive terminals are each inserted in a corresponding channel for completing a multiple-electrical-connection interface with said disk drive.

17. The interfacing connector according to claim 16, wherein said terminals are female socket terminals for receiving male connector pins of the disk drive.

18. The interfacing connector according to claim 13, wherein said connector housing is provided with mounting tabs extending toward the second ingress at each side of the connector housing, said tabs being spaced to embrace projecting edges of said disk drive, said tabs being perforated to allow fastening of the interfacing connector to said disk drive.

19. The interfacing connector according to claim 12, further comprising:

a cover support bracket integral to and extending perpendicularly from said connector housing;

an elongate cover for protecting said canted coil springs in absence of a circut board, said cover being pivotally connected to said support bracket, extending toward said canted coil springs and curving away therefrom to form an outward projection from said connector housing;

whereby a circuit board inserted between said cover and connector housing catches the outward projection of said cover and pivots said cover away from said canted coil springs.

20. The interfacing connector according to claim 19, wherein said elongate cover is spring-mounted at said support bracket to compress said circuit board against said canted coil springs.

21. The interfacing connector according to claim 12, further comprising:

an angled cover support bracket integral to and extending perpendicularly from said connector housing, said cover support bracket being angled to form a parallel extension spaced from said connector housing;

an elongate cover for protecting said canted coil springs in absence of a circuit board, said cover being pivotally connected to a tip of the support bracket extension, extending toward said canted coil springs and curving away therefrom to form a blunted pressure point;

whereby a circuit board inserted between said cover and connector housing bears against the blunted pressure point of said cover and pivots said cover inwardly away from said canted coil springs.

22. The interfacing connector according to claim 21, wherein said elongate cover is spring-mounted at said support bracket to compress said circuit board against said canted coil springs.

23. A contact array for a connector housing, comprising:

a thin flexible plate;

a plurality of canted coil springs mounted at spaced intervals along said flexible plate, said springs being coiled in a helix about an axis, and said springs being oriented such that said axis conforms to a plane of said flexible plate;

said flexible plate being anchored to said connector housing by a plurality of mounting posts extending therefrom, said mounting posts being heat-staked through a corresponding plurality of holes in said flexible plate;

whereby said canted coil springs are resiliently anchored to said connector housing for electrical contact with a facing circuit board.