Liquid-cooling heat dissipation system, control method, apparatus and device for servers

Patent metadata

Field	Value
Publication number	US-12396129-B2
Application number	US-202318867928-A
Country	US
Kind code	B2
Filing date	Mar 30, 2023
Priority date	Oct 31, 2022
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A liquid-cooling heat dissipation system and control method for servers are provided. The system includes: a heat exchanger, a vacuum generator, and n liquid-cooling tank bodies. A liquid-cooling heat dissipation mode of at least one liquid-cooling tank body is spraying heat dissipation, and at least two liquid-cooling tank bodies have different liquid-cooling heat dissipation modes. The first liquid-cooling tank body includes a first liquid storage tank configured to store cooling liquid, the ith liquid-cooling tank body is connected with the (i+1)th liquid-cooling tank body by means of the heat exchanger, and the nth liquid-cooling tank body is connected with the first liquid storage tank.

First claim

What is claimed is:

1. A liquid-cooling heat dissipation system for servers, comprising: a heat exchanger, a vacuum generator, a first liquid-cooling tank body and a second liquid-cooling tank body for liquid cooling servers to be disposed therein respectively, wherein the liquid cooling server in the first liquid-cooling tank body is cooled in a spraying heat dissipation manner and the liquid cooling server in the second liquid-cooling tank body is cooled in an immersion heat dissipation manner;
wherein the first liquid-cooling tank body comprises a first liquid storage tank configured to store cooling liquid, the second liquid-cooling tank body comprises a second liquid storage tank configured to store the cooling liquid, the first liquid-cooling tank body is connected with the second liquid-cooling tank body by means of the heat exchanger, the first liquid storage tank is connected with the first liquid-cooling tank body by means of a first valve, the second liquid-cooling tank body is connected with the first liquid storage tank by means of a second valve, the second liquid storage tank is connected to the second liquid-cooling tank body by means of a third valve, the second liquid storage tank is connected with the first liquid-cooling tank body by means of a fourth valve, and the heat exchanger is configured to cool the cooling liquid flowing through the heat exchanger;
wherein a vacuum port of the vacuum generator is connected with the first liquid-cooling tank body and the second liquid-cooling tank body and the first liquid storage tank and second liquid storage tank, respectively, and the vacuum generator is configured to create and regulate:
vacuum degrees of the first liquid-cooling tank body, the second liquid-cooling tank body and the first liquid storage tank when the first valve and the second valve are opened and the third valve and the fourth valve are closed, whereby the cooling liquid circulates between the first liquid storage tank and the first liquid-cooling tank body and the second liquid-cooling tank body; and
vacuum degrees of the second liquid storage tank, the first liquid-cooling tank body and second liquid-cooling tank body when the first valve and the second valve are closed and the third valve and the fourth valve are opened, whereby the cooling liquid circulates between the second liquid storage tank and the first liquid-cooling tank body and the second liquid-cooling tank body.

2. The liquid-cooling heat dissipation system according to claim 1 , wherein the first liquid storage tank comprises: a first circulating pump, configured to pump the cooling liquid in the first liquid storage tank to the first liquid-cooling tank body, and an outlet of the first circulating pump is connected to the first liquid-cooling tank body by means of the first valve; and
the second liquid storage tank comprises: a second circulating pump, configured to pump the cooling liquid in the second liquid storage tank to the second liquid-cooling tank body, and an outlet of the second circulating pump is connected to the second liquid-cooling tank body by means of the third valve.

3. The liquid-cooling heat dissipation system according to claim 1 , wherein the first liquid-cooling tank body comprises:
a jet nozzle, configured to spray and cool the liquid cooling server in the first liquid-cooling tank body with the cooling liquid flowing out of a first liquid-cooling exchange port of the first liquid-cooling tank body or the first liquid storage tank, wherein the first liquid storage tank is connected to the jet nozzle by means of the first valve, the first liquid-cooling exchange port of the first liquid-cooling tank body is connected to the jet nozzle, the first liquid-cooling exchange port of the first liquid-cooling tank body is connected to a first input/output port of the heat exchanger by means of a fifth valve, a second liquid-cooling exchange port of the first liquid-cooling tank body is connected to the first input/output port by means of a sixth valve, and a second input/output port of the heat exchanger is connected with the second liquid-cooling tank body.

4. The liquid-cooling heat dissipation system according to claim 1 , wherein a first liquid-cooling exchange port of the second liquid-cooling tank body is connected with a second input/output port of the heat exchanger, a second liquid-cooling exchange port of the second liquid-cooling tank body is connected with the first liquid storage tank, and the second liquid storage tank is connected with a third liquid-cooling exchange port of the first liquid-cooling tank body.

5. The liquid-cooling heat dissipation system according to claim 1 , wherein that the vacuum port of the vacuum generator is connected with the first liquid-cooling tank body successively by means of a seventh valve and an eighth valve, the vacuum port of the vacuum generator is connected with the second liquid-cooling tank body successively by means of a ninth valve and a tenth valve, the vacuum port of the vacuum generator is connected with the first liquid storage tank successively by means of the ninth valve and an eleventh valve, and the vacuum port of the vacuum generator is connected with the second liquid storage tank successively by means of the seventh valve and a twelfth valve.

6. The liquid-cooling heat dissipation system according to claim 1 , further comprising:
a processor connected with the heat exchanger and the vacuum generator and configured to control on/off of the heat exchanger and the vacuum generator.

7. The liquid-cooling heat dissipation system according to claim 1 , further comprising: a flowmeter, configured to detect a flow rate of the cooling liquid flowing through the flowmeter, and the heat exchanger is connected with the second liquid-cooling tank body by means of the flowmeter.

8. The liquid-cooling heat dissipation system according to claim 1 , wherein the first liquid-cooling tank body further comprises a first pressure sensor and a second pressure sensor;
wherein, the first pressure sensor is configured to detect a pressure in the first liquid-cooling tank body, and the second pressure sensor is configured to detect a pressure in the first liquid storage tank.

9. The liquid-cooling heat dissipation system according to claim 1 , wherein the first liquid-cooling tank body further comprises a first liquid level indicator and a second liquid level indicator;
wherein, the first liquid level indicator is configured to detect a liquid level in the first liquid-cooling tank body, and the second liquid level indicator is configured to detect a liquid level in the first liquid storage tank.

10. The liquid-cooling heat dissipation system according to claim 1 , wherein the first liquid-cooling tank body further comprises a first temperature sensor and a second temperature sensor;
wherein, the first temperature sensor is configured to detect a temperature in the first liquid-cooling tank body, and the second temperature sensor is configured to detect a temperature in the first liquid storage tank.

11. A liquid-cooling heat dissipation control method for servers, implemented by a liquid-cooling heat dissipation system comprising:
a heat exchanger, a vacuum generator, a first liquid-cooling tank body and a second liquid-cooling tank body for liquid cooling servers to be disposed therein respectively, wherein the liquid cooling server in the first liquid-cooling tank body is cooled in a spraying heat dissipation manner and the liquid cooling server in the second liquid-cooling tank body is cooled in an immersion heat dissipation manner;
wherein the first liquid-cooling tank body comprises a first liquid storage tank configured to store cooli

Assignees

• Suzhou Metabrain Intelligent Technology Co Ltd

Inventors

• Zhu Huanlai
• Wu An
• Liu Guangzhi

Classifications

• H05K7/20836

  Thermal management, e.g. server temperature control · CPC title

• H05K7/20772

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

• H05K7/20263

  Heat dissipaters releasing heat from coolant · CPC title

• Y02D10/00

  Energy efficient computing, e.g. low power processors, power management or thermal management · CPC title

• G06F1/20

  Cooling means · CPC title