Silicone Immersion Coolant Composition for Low-Viscosity Heat Dissipation
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Solution Overview
Problem
Existing immersion coolants for electronic components have high viscosity, are prone to decomposition, and are not suitable for large-scale energy storage applications.
Innovation Solution
A silicone oil-based immersion coolant comprising low-viscosity silicone oil, a silicone oil diluent, and a thermally conductive inorganic filler, with specific mass percentages and mixing conditions, to enhance fluidity, thermal conductivity, and insulation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If insulating oil is used as immersion coolant, then heat dissipation capacity is improved, but viscosity is high and decomposition risk increases
Solution Approach 1:
The patent uses composite materials by combining fluorinated liquid with insulating oil in specific proportions (fluorinated liquid 10-30% by volume, insulating oil 70-90% by volume). This composite approach leverages the high heat capacity of fluorinated liquid while using insulating oil as the base to maintain stability and reduce viscosity compared to pure insulating oil formulations.
Solution Approach 2:
The patent changes the chemical composition parameters of the coolant by introducing fluorinated liquid components with specific dielectric constants and heat capacities. This parameter modification reduces the overall viscosity and improves thermal properties while maintaining electrical insulation capabilities, resolving the contradiction between heat dissipation and fluidity.
2Reliability
If fluorinated liquid is used as immersion coolant, then stability and cooling effect are improved, but cost increases making it unsuitable for large-scale energy storage
Solution Approach 1:
The patent applies local quality by concentrating fluorinated liquid in specific regions where heat generation is highest, rather than using it uniformly throughout the system. The fluorinated liquid (10-30% volume) provides enhanced cooling where needed, while the majority of the system uses cost-effective insulating oil, achieving high reliability at reduced overall cost for large-scale applications.
Solution Approach 2:
The patent creates a scaled-down version of pure fluorinated liquid cooling systems by using a diluted formulation. Instead of requiring 100% fluorinated liquid for high-performance cooling, the invention copies the essential cooling properties using a mixed formulation that achieves comparable stability and cooling effect at a fraction of the cost, making it viable for large-scale energy storage.
3Temperature
If mineral oil or vegetable oil is used as immersion coolant, then heat carrying capacity is improved, but decomposition risk and combustion hazard increase
Solution Approach 1:
The patent introduces fluorinated liquid as an intermediary substance that mediates between the heat-generating electronic components and the insulating oil base. The fluorinated liquid component has superior thermal stability and resistance to decomposition, protecting the organic insulating oil from direct exposure to extreme temperatures and reducing combustion hazards while maintaining high heat carrying capacity.
Solution Approach 2:
The patent accepts that insulating oil components may have limited service life and potential decomposition risks, but compensates by using relatively inexpensive materials that can be easily replaced. The mixed formulation allows for cost-effective maintenance and replacement cycles, making the system economically viable despite the inherent limitations of organic oil components.
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 coolant achieves improved thermal conductivity, heat transfer performance, and insulation while maintaining low viscosity, making it suitable for large-scale energy storage systems.
Implementation Method 1
addition of a thermally conductive inorganic filler to the low-viscosity silicone oil can conduct the heat of the electronic component away timely under the flow of the immersion coolant, thereby increasing the cooling performance of the immersion coolant
Implementation Method 2
liquid cooling technology, especially immersion liquid cooling technology, has the characteristics of large heat carrying capacity, low flow resistance, and high heat exchange efficiency
Data Source
AI summary
The present application relates to the technical field of liquid cooling of electronic components, and in particular to a silicone oil-based immersion coolant for an electronic component. The present application can solve the problem of relatively high viscosity, easy decomposition, and not suitable for application in large-scale energy storage of the immersion coolant in related art. The silicone oil-based immersion coolant for an electronic component includes a base oil and an additive. The base oil includes a low-viscosity silicone oil. The additive includes a silicone oil diluent and a thermally conductive inorganic filler. The viscosity of the low-viscosity silicone oil is less than or equal to 1000 cSt. The thermally conductive inorganic filler is an insulating filler. Based on the mass of the immersion coolant, a mass percentage content of the base oil is in a range from 70% to 85%, a mass percentage content of the silicone oil diluent is in a range from 10% to 20%, and a mass percentage content of the thermally conductive inorganic filler is in a range from 5% to 10%.