Immersion cooling system

Patent metadata

Field	Value
Publication number	US-11800683-B2
Application number	US-202117536267-A
Country	US
Kind code	B2
Filing date	Nov 29, 2021
Priority date	Feb 17, 2021
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

An immersion cooling system includes a sealed tank having a chamber. A circulating layer and a working layer are respectively formed by first and second working liquids filled in the chamber and are contiguous to each other. The boiling point of the second working liquid is higher than that of the first working liquid. The density of the second working liquid is lower than that of the first working liquid. The first and second working liquids do not dissolve in each other. A circulating cooling module includes a circulating pipeline having first and second ports located in the chamber. The circulating pipeline also has a heat absorbing section and a condensation section located between the first and second ports. The heat absorbing section is located in the working layer. The first working liquid flows into the circulating pipeline from the first port and circulates in the circulating pipeline.

First claim

What is claimed is:

1. An immersion cooling system comprising:
a sealed tank including a chamber;
a circulating layer formed by a first working liquid filled in the chamber;
a working layer formed by a second working liquid filled in the chamber, wherein a boiling point of the second working liquid is higher than a boiling point of the first working liquid, wherein a density of the second working liquid is lower than a density of the first working liquid, wherein the first working liquid and the second working liquid do not dissolve in each other, and wherein the circulating layer and the working layer are contiguous to each other; and
a circulating cooling module including a circulating pipeline having a first port and a second port, wherein the circulating pipeline further has a heat absorbing section and a condensation section, which are located between the first port and the second port, wherein the first port and the second port are located in the chamber, wherein the heat absorbing section is located in the working layer, and wherein the first working liquid flows into the circulating pipeline from the first port and circulates in the circulating pipeline.

2. The immersion cooling system as claimed in claim 1 , wherein the boiling point of the first working liquid is lower than a boiling point of water.

3. The immersion cooling system as claimed in claim 1 , wherein the density of the first working liquid is higher than a density of water, and the density of the second working liquid is lower than the density of water.

4. The immersion cooling system as claimed in claim 1 , wherein both the first working liquid and the second working liquid are electrically non-conductive liquids.

5. The immersion cooling system as claimed in claim 1 , wherein the circulating pipeline is not a closed loop.

6. The immersion cooling system as claimed in claim 1 , wherein the condensation section is outside of the circulating layer and the working layer.

7. The immersion cooling system as claimed in claim 6 , wherein the condensation section is located in the chamber.

8. The immersion cooling system as claimed in claim 6 , wherein the circulating cooling module further includes a plurality of cooling fins coupled to the condensation section.

9. The immersion cooling system as claimed in claim 6 , wherein the circulating cooling module further includes at least one fan coupled to the condensation section.

10. The immersion cooling system as claimed in claim 1 , wherein the second port is located in the working layer.

11. The immersion cooling system as claimed in claim 10 , wherein the circulating cooling module includes a check valve located between the condensation section and the second port, and wherein the check valve has an outlet intercommunicating with the second port.

12. The immersion cooling system as claimed in claim 1 , wherein the second port is located in the circulating layer.

13. The immersion cooling system as claimed in claim 1 , wherein the circulating pipeline includes a return flow section contiguous to the second port, and wherein the return flow section has a plurality of through-holes.

14. The immersion cooling system as claimed in claim 1 , wherein the circulating cooling module includes at least one cold plate coupled to the heat absorbing section, wherein the at least one cold plate has a compartment, wherein the first working liquid in the circulating layer intercommunicates with the compartment, and wherein the at least one cold plate includes an outer surface having a heat absorbing face.

15. The immersion cooling system as claimed in claim 14 , wherein the at least one cold plate includes at least one fixing portion.

16. The immersion cooling system as claimed in claim 1 , wherein the first port intercommunicates with a liquid outlet of a pump, and wherein the pump has a liquid inlet located in the circulating layer.

17. The immersion cooling system as claimed in claim 16 , wherein the pump is located in the chamber.

18. The immersion cooling system as claimed in claim 1 , wherein the circulating cooling module includes a check valve located between the heat absorbing section and the first port, and wherein the check valve includes an inlet intercommunicating with the first port.

19. The immersion cooling system as claimed in claim 1 , wherein the circulating cooling module further includes a plurality of cooling fins coupled to an outer surface of the circulating pipeline, and wherein the plurality of cooling fins is located in the working layer.

20. The immersion cooling system as claimed in claim 1 , further comprising an air layer formed by air in the chamber, wherein the circulating cooling module further includes a plurality of cooling fins coupled to an outer surface of the circulating pipeline, and wherein the plurality of cooling fins is located in the air layer.

21. The immersion cooling system as claimed in claim 1 , wherein a color of the first working liquid is different from a color of the second working liquid.

22. The immersion cooling system as claimed in claim 21 , wherein the color of the first working liquid and/or the color of the second working liquid is blended by fat-soluble dyeing agents.

23. The immersion cooling system as claimed in claim 1 , further comprising at least one electronic device, wherein the at least one electronic device includes at least one heat source located in the working layer.

Assignees

• Sunonwealth Electric Machine Ind Co Ltd

Inventors

• Horng Alex
• Yin Tso-Kuo
• Li Ming-Tsung

Classifications

• H05K7/20327 Primary

  Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds · CPC title

• H05K7/203 Primary

  by immersion · CPC title

• H05K7/20318

  Condensers · CPC title

• H05K7/20809

  within server blades for removing heat from heat source · CPC title