Liquid cooled heat sink for multiple separated heat generating devices

• US 20100236761A1
• Filed: 09/21/2009
• Published: 09/23/2010
• Est. Priority Date: 03/19/2009
• Status: Abandoned Application

• Current Assignee: Acbel Polytech Incorporated
• Original Assignee: Acbel Polytech Incorporated
• Inventors: Chu, Chun-Chieh, Lin, Chia-Hao, Chou, Chien-An, Chen, Wen-Hsiung
• Application Number:
  US12/586,324
• Publication Number:
  US 20100236761A1
• Time in Patent Office: Days
• US Class Current: 165/104.280
• CPC Class Codes: F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies F28D17/00, F28D19/00, F28D20/00 take precedence
• CPC Class Codes: F28F 1/22 the means having portions engaging further tubular elements
• 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: 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 liquid cooled heat sink has a thermal conduction plate and a liquid cooling module. The liquid cooling module is attached securely to the thermal conduction plate and has a distribution tank, a collection tank and a pipe assembly. The pipe assembly has multiple pipes of at least two different gauges and each pipe has a pipe inlet and a pipe outlet respectively secured to the distribution tank and the collection tank. Since a sum of the gauges is increased and each pipe need not to be coiled, an extra strong pumping system is not needed and design complexity is reduced.

Claims

1. A liquid cooled heat sink for multiple separated heat generating devices comprising:

a thermal conduction plate having

a contact surface thermal contacting with the multiple separated heat generating devices;

a cooling surface; and

two side edges; and

a liquid cooling module being attached securely to the thermal conduction plate and having

a distribution tank being disposed adjacent to one of the side edges of the thermal conduction plate and having at least one distribution inlet and multiple distribution outlets;

a collection tank being located adjacent to one of the side edges of the thermal conduction plate and having multiple collection inlets and at least one collection outlet; and

a pipe assembly having

multiple pipes of at least two different gauges and each pipe having a pipe inlet, a pipe outlet respectively secured to the distribution outlets and the collection inlets, thereby communicating with the distribution tank and the collection tank.

2. The liquid cooled heat sink as claimed in claim 1, wherein the pipes have at least two different interior diameters to form the at least two different gauges.

3. The liquid cooled heat sink as claimed in claim 1, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one pipe has a zigzag interior surface.

4. The liquid cooled heat sink as claimed in claim 1, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one of the pipes has a ragged interior surface.

5. The liquid cooled heat sink as claimed in claim 3, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one of the pipes has a ragged interior surface.

6. The liquid cooled heat sink as claimed in claim 1, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one of the pipes has a grid embedded interior surface.

7. The liquid cooled heat sink as claimed in claim 3, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one of the pipes has a grid embedded interior surface.

8. The liquid cooled heat sink as claimed in claim 5, wherein the pipes have different morphology of interior surfaces of the pipes to form the at least two gauges, wherein at least one of the pipes has a grid embedded interior surface.

9. The liquid cooled heat sink as claimed in claim 8, wherein the liquid cooling module is mounted securely on the cooling surface of the thermal conduction plate.

10. The liquid cooled heat sink as claimed in claim 8, wherein the liquid cooling module is formed in the thermal conduction plate.

11. The liquid cooled heat sink as claimed in claim 1, wherein

the thermal conduction plate has

two plates each having an inner surface, the inner surface of each plate having a recessed distribution tank, a recessed collection tank and a recessed pipe assembly that are corresponding respectively to the distribution tank, collection tank and pipes, wherein depths of the recessed pipes correspond to gauges of the pipes.

12. The liquid cooled heat sink as claimed in claim 1, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

13. The liquid cooled heat sink as claimed in claim 2, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

14. The liquid cooled heat sink as claimed in claim 3, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

15. The liquid cooled heat sink as claimed in claim 4, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

16. The liquid cooled heat sink as claimed in claim 5, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

17. The liquid cooled heat sink as claimed in claim 6, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

18. The liquid cooled heat sink as claimed in claim 7, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

19. The liquid cooled heat sink as claimed in claim 8, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.

20. The liquid cooled heat sink as claimed in claim 9, wherein the pipes of the pipe assembly have different lengths, and longer pipes have larger gauges.