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Negative-pressure liquid cooling system and control method thereof

A control method and technology of cooling system, applied in the direction of electric fluid pressure control, electrical components, electrical equipment structural parts, etc., can solve problems such as coolant leakage, reduce the risk of system leakage, avoid potential safety hazards, avoid Effect of coolant leakage phenomenon

Active Publication Date: 2018-01-19
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a negative pressure liquid cooling system and its control method to solve the technical problem of coolant leakage in traditional liquid cooling systems

Method used

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  • Negative-pressure liquid cooling system and control method thereof
  • Negative-pressure liquid cooling system and control method thereof
  • Negative-pressure liquid cooling system and control method thereof

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Embodiment Construction

[0041] The traditional liquid cooling system is usually a positive pressure system, that is, the liquid pressure in the pipeline is greater than the ambient pressure outside the pipeline. In this way, when the pipeline between the inlet and the outlet of the cold plate is perforated, the liquid in the pipeline will leak from the perforation to the electronic equipment to be cooled, which may cause damage to the electronic equipment to be cooled or potential safety hazards. Part of the negative pressure system is also adopted, but the traditional negative pressure system uses a constant pressure difference between the inlet and outlet of the cold plate to control the flow in the system. The system can maintain the negative pressure in the system during normal operation, but when the cold plate is between the inlet and the outlet When the pipe is perforated, the pressure at the outlet of the cold plate rises. If the flow is still controlled according to the constant pressure diffe...

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Abstract

The invention provides a negative-pressure liquid cooling system and a control method thereof. The pressure at the inlet of a cooling plate and the pressure at the outlet of the cooling plate are individually controlled by the system, so that the pressure at the inlet of the cooling plate and the pressure at the outlet of the cooling plate are kept negative. Therefore, when the perforation occursin a pipeline between the inlet of the cooling plate and the outlet of the cooling plate, the pressure at the outlet of the cooling plate is individually controlled to be negative. As a result, the cooling liquid is suppressed within the pipeline, and the cooling liquid leakage phenomenon is avoided. Furthermore, the occurrence of the damage of to-be-cooled electronic equipment or potential safetyhazards, due to the leakage of conductive working substances such as water and the like, can be avoided.

Description

Technical field [0001] The invention belongs to the technical field of veneer cooling, and particularly relates to a negative pressure liquid cooling system and a control method thereof. Background technique [0002] As the integration of electronic components increases, the power consumption density of the chip is increasing. The power consumption density is the power consumption per unit area. A high power consumption density means that more heat is accumulated in the same area, which will increase the heat dissipation pressure. Traditional air-cooled heat dissipation methods can no longer meet the increasing heat dissipation requirements of chips. Liquid cooling technology is widely used with high heat dissipation efficiency, for example, data centers, servers, personal PCs and other fields. [0003] Liquid cooling systems usually include: cold plates, heat exchangers, pipes, liquid pumps, and various sensors. Wherein, the cold plate is attached to the veneer to be cooled, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D16/20
CPCG05D16/20H05K7/20272H05K7/20254H05K7/20627H05K7/20763H05K7/20281
Inventor 丁俊峰
Owner HUAWEI TECH CO LTD
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