Dual Sealing Liquid Cooling Device for High-Power CPUs
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Solution Overview
Problem
Current air cooling technologies are inadequate for high-power CPUs, leading to heat dissipation issues and potential damage from coolant leakage in liquid cooling systems, which can cause significant economic loss and safety risks.
Innovation Solution
A liquid cooling device with a dual sealing system, where a first sealing body forms a liquid cooling channel and a second sealing body contains any leaked coolant, preventing it from contacting the device or other electronic components, and includes a liquid leakage sensor for alarm and drainage functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air cooling technology is used for high-power CPUs, then the device structure is simple, but the heat dissipation capability is insufficient and the CPU may be damaged due to overheating
Solution Approach 1:
The patent replaces air cooling (mechanical convection) with liquid cooling (fluid convection), substituting one cooling mechanism with a more effective one. The liquid cooling device uses a cooling liquid circulating through channels to transfer heat from the CPU, providing superior heat dissipation capability while managing the increased system complexity through integrated design
Solution Approach 2:
The patent utilizes phase transition of the cooling liquid (liquid to vapor and back to liquid) to enhance heat dissipation. The cooling liquid absorbs heat from the CPU, vaporizes at the heat dissipation surface, and then condenses back to liquid in the heat exchanger, creating a continuous cooling cycle that efficiently removes heat from high-power CPUs
2Temperature
If liquid cooling technology is used to improve heat dissipation, then the heat dissipation capability is sufficient, but the sealing performance is poor and coolant leakage can damage electronic devices
Solution Approach 1:
The patent implements a nested sealing structure where the first sealing body (sealing the cooling liquid channel) is enclosed within the second sealing body (sealing the heat dissipation surface). This nested arrangement creates multiple barriers against leakage, so that even if the inner seal fails, the outer seal prevents coolant from contacting electronic devices, thereby improving reliability while maintaining effective liquid cooling
Solution Approach 2:
The patent incorporates sealing structures and leakage prevention mechanisms in advance during the design phase. The double sealing body structure is built beforehand to cushion against potential leakage risks, and the heat dissipation device includes features that prevent coolant from reaching electronic components even if sealing issues occur, providing proactive protection rather than reactive measures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dual sealing system enhances the safety and reliability of the liquid cooling device by containing leaks within a secondary cavity, preventing damage and ensuring superior sealing performance, while the leakage sensor improves prompt detection and response to leaks.
Implementation Method 1
the cooling base plate is used to contact a device to be cooled, to cool the device to be cooled
Implementation Method 2
the first sealing tube and the first sealing cavity together form a liquid cooling channel used for conveying a liquid cooling medium
Data Source
AI summary
A liquid cooling device includes a cooling base plate, a first sealing cover plate and a first sealing tube, wherein the first sealing cover plate and the cooling base plate form a first sealing cavity; and the first sealing tube and the first sealing cavity form a liquid cooling channel used for conveying a liquid cooling medium; a second sealing cover plate is fixed on the cooling base plate, and a second sealing tube is fixed on the second sealing cover plate, the second sealing cover plate and the second sealing tube form a second sealing cavity. The liquid cooling device has an excellent sealing performance, and a reliability problem caused by water leakage of the first sealing cavity is eliminated, thus improving the safety of the liquid cooling device.