Liquid immersion cooling device

• US 10,667,434 B1
• Filed: 04/09/2019
• Issued: 05/26/2020
• Est. Priority Date: 01/29/2019
• Status: Active Grant

• Current Assignee: Fulian Precision Electronics Company Limited
• Original Assignee: Hongfujin Precision Electronics (Tianjin) Co. Ltd. (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Mao, Tze-Chern, Chang, Li-Wen, Wei, Chao-Ke, Chang, Yao-Ting, Chang, Chih-Hung, Fu, Yen-Chun, Liu, Ching-Tang
• Primary Examiner(s): Thompson, Timothy J
• Assistant Examiner(s): Robinson, Krystal
• Application Number:
  US16/379,311
• Time in Patent Office: 413 Days
• CPC Class Codes: H05K 7/20236 by immersion
• CPC Class Codes: H05K 7/20263 Heat dissipaters releasing heat from coolant
• CPC Class Codes: H05K 7/20272 Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
• CPC Class Codes: H05K 7/20645 within cabinets for removing heat from sub-racks
• CPC Class Codes: H05K 7/20772 within server blades for removing heat from heat source
• CPC Class Codes: H05K 7/20781 within cabinets for removing heat from server blades

Abstract

A liquid immersion cooling device includes a mounting frame, a liquid reservoir mounted to the mounting frame, and a cold source distributor mounted on an outer side of the mounting frame. The liquid reservoir is configured to immerse a server in an insulating coolant. The liquid reservoir is movably mounted to the mounting frame. The cold source distributor comprises a telescopic cold source tube and a telescopic heat return tube. An output end of the cold source tube and an output end of the heat return tube are coupled to the liquid reservoir. When the liquid reservoir is pulled out of the mounting frame, the cold source tube and the heat return tube are extended by the liquid reservoir to a predetermined length. When the liquid reservoir is pushed into the mounting frame, the cold source tube and the heat return tube are retracted.

Claims

1. A liquid immersion cooling device comprising:

a mounting frame;

at least one liquid reservoir movably mounted to the mounting frame and each configured to accommodate coolant therein with; and

a cold source distributor mounted on an outer side of the mounting frame;

wherein;

the cold source distributor comprises a telescopic cold source tube and a telescopic heat return tube;

an output end of the telescopic cold source tube and an output end of the telescopic heat return tube are coupled to each of the at least one liquid reservoir;

when the at least one liquid reservoir is pulled out of the mounting frame, the telescopic cold source tube and the telescopic heat return tube are extended by the liquid reservoir to a predetermined length;

when the at least one liquid reservoir is pushed into the mounting frame, the telescopic cold source tube and the telescopic heat return tube are retracted;

the mounting frame comprises a support rod on a side of the mounting frame adjacent to the cold source distributor;

the support rod comprises a coiler;

the telescopic cold source tube and the telescopic heat return tube are coiled on the coiler;

when the telescopic cold source tube and the telescopic heat return tube are pulled by the at least one liquid reservoir to extend, the coiler rotates around the support rod along a first direction;

when the telescopic cold source tube and the telescopic heat return tube are pushed by the at least one liquid reservoir to retract, the coiler rotates around the support rod along a second direction opposite to the first direction.

2. The liquid immersion cooling device of claim 1, wherein:

the cold source distributor further comprises a heat exchanger;

the telescopic cold source tube and the telescopic heat return tube are coupled to the heat exchanger.

3. The liquid immersion cooling device of claim 2, wherein:

a plurality of liquid reservoirs are stacked within the mounting frame;

each of the plurality of liquid reservoirs is configure to mount a server;

the cold source distributor comprises a plurality of heat exchangers;

the telescopic cold source tube and the telescopic heat return tube connected to the plurality of liquid reservoirs in which the servers mounted therein have powers within a predetermined range are connected to a same heat exchanger.

4. The liquid immersion cooling device of claim 1, wherein:

the coiler is rotationally mounted on the support rod, and

the cold source tube and the heat return tube are coiled on the coiler.

5. The liquid immersion cooling device of claim 1, wherein:

a size of the liquid reservoir matches a size of a server.

6. The liquid immersion cooling device of claim 1 further comprising a sliding block, wherein:

the sliding block is between the liquid reservoir and the mounting frame; and

the sliding block slidably mounts the liquid reservoir to the mounting frame.

7. The liquid immersion cooling device of claim 1, wherein:

a first adapter is mounted to a first sidewall of the liquid reservoir;

the first adapter passes through the first sidewall;

the first adapter on an inner side of the first sidewall is coupled to a server placed within the liquid reservoir;

the first adapter on an outer side of the first sidewall is coupled to an external power line to provide power to the server.

8. The liquid immersion cooling device of claim 1, wherein:

a second adapter is mounted to a second sidewall of the liquid reservoir;

the second adapter passes through the second sidewall;

the second adapter on an inner side of the second sidewall is coupled to a server placed within the liquid reservoir;

the second adapter on an outer side of the second sidewall is coupled to a network line to provide network access to the server.

9. The liquid immersion cooling device of claim 8, wherein:

a latching portion is mounted on opposite sides of the second sidewall;

the mounting frame comprises a projection;

the latching portion and the projection mount the liquid reservoir to the mounting frame.

10. A liquid immersion cooling device comprising:

a mounting frame;

a plurality of liquid reservoirs mounted to the mounting frame; and

a cold source distributor mounted on an outer side of the mounting frame;

wherein;

each of the plurality of liquid reservoirs is configured to immerse a server in insulating coolant;

each of the plurality of liquid reservoirs is movably mounted to the mounting frame;

the cold source distributor comprises a plurality of telescopic cold source tubes and a plurality of telescopic heat return tubes;

each of the plurality of liquid reservoirs is coupled to an output end of a corresponding one of the telescopic cold source tubes and an output end of a corresponding one of the telescopic heat return tubes;

when the plurality of liquid reservoirs are pulled out of the mounting frame, the cold source tubes and the heat return tubes are extended by the liquid reservoirs to a predetermined length;

when the plurality of liquid reservoirs are pushed into the mounting frame, the telescopic cold source tubes and the telescopic heat return tubes are retracted;

the mounting frame comprises a support rod on a side of the mounting frame adjacent to the cold source distributor;

the support rod comprises a coder;

the telescopic cold source tubes and the telescopic heat return tubes are wound on the coiler;

when the telescopic cold source tubes and the telescopic heat return tubes are pulled by the liquid reservoirs to extend, the coiler rotates along a first direction around the support rod;

when the telescopic cold source tubes and the telescopic heat return tubes are pushed by the liquid reservoirs to retract, the coiler rotates along a second direction around the support rod.

11. The liquid immersion cooling device of claim 10, wherein:

the cold source distributor further comprises a heat exchanger;

the telescopic cold source tubes and the telescopic heat return tubes are coupled to the heat exchanger.

12. The liquid immersion cooling device of claim 11, wherein:

the cold source distributor comprises a plurality of heat exchangers;

the telescopic cold source tubes and the telescopic heat return tubes connected to the liquid reservoirs in which the servers mounted therein have a power within a predetermined range are connected to the same heat exchanger.

13. The liquid immersion cooling device of claim 10, wherein:

the coiler is directly rotationally mounted on the support rod, and

the telescopic cold source tubes and the telescopic heat return tubes are wound on the coiler.

14. The liquid immersion cooling device of claim 10, wherein:

a size of each of the plurality of liquid reservoirs matches a size of the server.

15. The liquid immersion cooling device of claim 10 further comprising a sliding block, wherein:

the sliding block is between the liquid reservoirs and the mounting frame; and

the sliding block slidably mounts the liquid reservoirs to the mounting frame.

16. The liquid immersion cooling device of claim 10, wherein:

a first adapter is mounted to a first sidewall of each of the liquid reservoirs;

the first adapter passes through the first sidewall;

the first adapter on an inner side of the first sidewall is coupled to the server immersed in a corresponding one of the liquid reservoirs;

the first adapter on an outer side of the first sidewall is coupled to an external power line to provide power to the server.

17. The liquid immersion cooling device of claim 10, wherein:

a second adapter is mounted to a second sidewall of each of the liquid reservoirs;

the second adapter passes through the second sidewall;

the second adapter on an inner side of the second sidewall is coupled to the server immersed in a corresponding one the liquid reservoirs;

the second adapter on an outer side of the second sidewall is coupled to a network line to provide network access to the server.

18. The liquid immersion cooling device of claim 17, wherein:

a latching portion is mounted on opposite sides of the second sidewall;

the mounting frame comprises a projection;

the latching portion and the projection mount each of the liquid reservoirs to the mounting frame.