Electrically insulated quick disconnect heat sink

• US 4,444,994 A
• Filed: 01/29/1982
• Issued: 04/24/1984
• Est. Priority Date: 01/29/1982
• Status: Expired due to Fees

• Current Assignee: Varo, Inc. (Northrop Grumman Corporation)
• Original Assignee: Varo, Inc. (Northrop Grumman Corporation)
• Inventors: Baker, James E., Allen, T. Benjamin
• Primary Examiner(s): Trube, J. V.
• Assistant Examiner(s): NIMMO, MORRIS
• Application Number:
  US06/343,750
• Time in Patent Office: 816 Days
• Field of Search: 174/116 HS, 361/386, 361/388, 361/353, 361/354, 165/80 B, 165/80 D
• US Class Current: 174/16.3
• CPC Class Codes: H05K 7/2039 characterised by the heat transfer by conduction from the heat generating element to a dissipating body arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00

Abstract

A quick disconnect heat sink includes a first longitudinal bracket having a longitudinal groove along one surface thereof and a second longitudinal bracket having a longitudinal notch along one edge thereof. A heat sink having a first tongue on one end and a second tongue on the other end is disposed between the longitudinal brackets such that the first tongue is inserted in the longitudinal groove and the second tongue rests in the notch. A movable rectangular bracket is attached to the second clamping bracket such that it retains the second tongue between the rectangular clamping bracket and the notch. A first insert is disposed on the first tongue that inserts into a first slot on the first longitudinal bracket and a second insert is disposed on the second tongue that inserts into a second slot on the rectangular bracket, the inserts and slots preventing lateral movement of the heat sink. The rectangular bracket is removable so that the heat sink can be detached.

Claims

1. A cooling apparatus, comprising:

a cooling member having a first tongue at one end thereof and a second tongue at the other end thereof;

a first stationary bracket having a first longitudinal groove along the edge thereof for receiving said first tongue;

a second stationary bracket having a notch along the edge thereof;

a clamping bracket for attachment to said second stationary bracket, said clamping bracket being adjustable such that the end portion of the lower surface thereof overlaps said notch to form a second longitudinal groove for receiving said second tongue;

first retaining means for preventing movement of said first tongue along the longitudinal axis of said first groove, the combination of said first retaining means and said first stationary bracket allowing movement of said cooling member in a first direction only, said first direction directed outward from said first longitudinal groove; and

second retaining means for preventing movement of said second tongue along the longitudinal axis of said second groove, the combination of said second retaining means, said second stationary bracket and said clamping bracket only allowing movement of said heat sink in a second direction that is opposite said first direction, said cooling member being retained when said clamping bracket is attached to form said second groove and said cooling member being removable when said clamping bracket is adjusted to allow movement of said second tongue in a direction perpendicular to both said second direction and the notch in said second bracket.

2. The apparatus of claim 1 wherein said first stationary bracket and said second stationary bracket are electrically insulating and thermally conductive.

3. The apparatus of claim 1 wherein said clamping bracket comprises a rectangular bracket having a screw inserted therethrough for attachment to said second stationary bracket.

4. The apparatus of claim 1 wherein said clamping bracket comprises a rectanglar bracket having a slot on the upper surface thereof and extending through to the lower surface thereof and a screw inserted through said slot for attaching said rectangular bracket to said second stationary bracket wherein said screw can be loosened to allow said rectangular bracket to reciprocate in said first and second direction.

5. The apparatus of claim 1 wherein said clamping bracket comprises an elongated member pivotally mounted at one end thereof on said second stationary bracket such that rotation of said elongated member extends the end portion thereof over said notch to form said second groove.

6. The apparatus of claim 1 wherein said first retaining means comprises a first insert and a second insert disposed within said first longitudinal groove, said first and second inserts spaced a distance equal to the width of said first tongue such that said first and second inserts prevent movement of said first tongue along the longitudinal axis of said first groove.

7. The apparatus of claim 1 wherein said second retaining means comprises a first insert and a second insert disposed on the surface of said notch, said first and second inserts spaced a distance equal to the width of said second tongue such that said first and second inserts prevent movement of said second tongue along longitudinal axis of said notch.

8. The apparatus of claim 1 wherein said first retaining means comprises an insert disposed on said one end of said cooling member and a slot disposed on said first stationary bracket for receiving said insert, the insertion of said insert into said slot preventing movement of said cooling member along the longitudinal axis of said first longitudinal groove.

9. The apparatus of claim 1 wherein said second retaining means comprises an insert disposed on said other end of said cooling member and a slot disposed on the upper surface of said clamping bracket, the insertion of said insert into said slot preventing movement along the longitudinal axis of said second longitudinal groove.

10. The apparatus of claim 1 wherein said first retaining means comprises an insert disposed within said first longitudinal groove and a slot disposed on said one end of said heat sink for receiving said insert, the insertion of said insert into said slot preventing movement of said cooling member along the longitudinal axis of said first longitudinal groove.

11. The apparatus of claim 1 wherein said second retaining means comprises an insert disposed within said notch and a slot disposed on said other end of said cooling member for receiving said insert, the insertion of said insert into said slot preventing movement of said cooling member along the longitudinal axis of said notch.

12. The apparatus of claim 1 wherein said first retaining means comprises an insert disposed on the external surface of said first stationary bracket and a slot disposed on said cooling member adjacent to said one end of said cooling member for receiving said insert, the insertion of said insert into said slot preventing movement of said cooling member along the longitudinal axis of said first longitudinal groove.

13. The apparatus of claim 1 wherein said second retaining means comprises an insert disposed on said clamping bracket and a slot disposed on said other end of said cooling member for receiving said insert, the insertion of said insert into said slot preventing movement of said cooling member along the longitudinal axis of said second groove.

14. An apparatus comprising:

a base;

a heat sink a first tongue disposed at one end of the heat sink;

a second tongue disposed at the other end of the heat sink;

said first tongue having a first insert disposed on the surface thereof and said second tongue having a second insert disposed on the surface thereof;

a first longitudinal bracket mounted on said base, said first bracket having a first longitudinal groove disposed on the surface thereof adjacent said base for receiving said first tongue and a first slot disposed adjacent to said first longitudinal groove for receiving said first insert wherein the insertion of said first tongue and said first insert into said first groove and said first slot, respectively, allows movement of the heat sink in a first direction only, said first direction directed outward from said first groove;

a second longitudinal bracket mounted on said base, said second bracket having a longitudinal notch disposed on the edge thereof opposite said base, said first and second bracket fabricated of electrically insulating material; and

a rectangular bracket movably mounted on the surface of said second bracket opposite said base, the end portion of said rectangular bracket covering a portion of said notch to form a second longitudinal groove for receiving said second tongue, said rectangular bracket also having a second slot on the end thereof for receiving said second insert wherein the insertion of said second tongue into said groove and said second insert into said second slot respectively allows movement in a second direction only, said second direction directed outward from said second groove and opposite said first direction, thus retaining the heat sink, said rectangular bracket removable to provide an additional direction of motion orthogonal to said first and second directions such that the heat sink can be removed.