Liquid Cooling System Cold Plate Assembly

• US 20080230208A1
• Filed: 03/21/2008
• Published: 09/25/2008
• Est. Priority Date: 03/22/2007
• Status: Abandoned Application

• Current Assignee: Claus Nygaard Rasmussen
• Original Assignee: Claus Nygaard Rasmussen
• Inventors: Rasmussen, Claus Nygaard
• Application Number:
  US12/053,202
• Publication Number:
  US 20080230208A1
• Time in Patent Office: Days
• US Class Current: 165/80.4
• CPC Class Codes: F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing F28F1/00 - F28F11/00 take precedence
• CPC Class Codes: F28F 2013/006 Heat conductive materials
• CPC Class Codes: F28F 21/08 of metal
• CPC Class Codes: F28F 3/12 Elements constructed in the shape of a hollow panel, e.g. with channels F28D1/02, F28D1/03 take precedence
• CPC Class Codes: G06F 1/20 Cooling means
• CPC Class Codes: G06F 2200/201 Cooling arrangements using cooling fluid
• CPC Class Codes: H01L 23/473 by flowing liquids H01L23/4332, H01L23/4338 take precedence
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A cold plate assembly (100) consisting of a base structure (102) having a high thermal transfer characteristic, which is adapted for contacting the surface of a heat source (10) on one side. A fluid transfer component (104), having a different thermal transfer characteristic is secured to the base (102) opposite from the heat source receiving side. The fluid transfer component (104) includes protrusions (106) adapted for placement into a flow of liquid coolant. A flow of liquid coolant is permitted to pass over the protrusions (106), but does not contact any portion of the base (102). Heat is then transferred from the heat source (10) through the base (102), into the fluid transfer component (104), and dissipated into the liquid coolant through the protrusions (106) which are immersed in the flow of liquid coolant passing through the chamber (105A) via an inlet (108A) and outlet (108B).

Claims

1. A cold plate assembly for use with a liquid cooling system, comprising:

a base structure of first material having a high thermal transfer characteristic, said base structure adapted on at least one surface for contacting a heat source to facilitate a transfer of heat from said heat source to said base structure;

a fluid transfer component, said fluid transfer component formed from a second material having a second thermal transfer characteristic and adapted for partial immersion in a flow of liquid coolant on a first surface; and

wherein said fluid transfer component is coupled on a second surface, to a surface of said base structure to facilitate a thermal transfer of heat from the heat source, through said base structure and said fluid transfer component, to said flow of liquid coolant.

2. The cold plate assembly of claim 1 wherein at least one of said first and second materials is copper.

3. The cold plate assembly of claim 1 wherein at least one of said first and second materials is aluminum.

4. The cold plate assembly of claim 1 wherein said first material is copper, wherein said second material is aluminum.

5. The cold plate assembly of claim 1 wherein said base structure is coupled to said fluid transfer component by at least one of a bonding, welding, soldering, or brazing means.

6. The cold plate assembly of claim 1 wherein said fluid transfer component is a molded component.

7. The cold plate assembly of claim 1 wherein said fluid transfer component includes a plurality of protrusions on said first surface adapted for immersion in said flow of liquid coolant, said plurality of protrusions providing an increased surface area for an exchange of heat between said fluid transfer component and said flow of liquid coolant.

8. The cold plate assembly of claim 1 wherein said fluid transfer component includes a plurality of protrusions on said first surface adapted for immersion in said flow of liquid coolant, said plurality of protrusions directing a flow of liquid coolant within said fluid transfer component.

9. The cold plate assembly of claim 1 wherein said base structure is isolated from contact with said flow of liquid coolant by said fluid transfer component.

10. The cold plate assembly of claim 1 further including a housing defining an enclosed chamber over said first surface of said fluid transfer component, said housing including at least one inlet for receiving a flow of liquid coolant to said chamber, and at least one outlet for discharging a flow of liquid coolant from said chamber.

11. The cold plate assembly of claim 10 wherein said housing is integrally formed with said fluid transfer component.