Heat-Transfer Liquid Solution for Immersion Cooling

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Solution Overview

Problem

Current heat-transfer liquids for liquid immersion cooling systems in data centers face challenges in maintaining dielectric properties and preventing contamination, which can lead to electrical and chemical property degradation, causing errors and malfunctions in electronic data storage devices.

Innovation Solution

A heat-transfer liquid solution is formulated by combining a solvent component with a solute component, where the solute is chosen to inhibit mass transfer of materials from electronic devices and equipment, maintaining the dielectric and chemical properties of the solvent, and ensuring the solution remains a single-phase at operating temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If heat-transfer liquid is used for liquid immersion cooling, then heat transfer efficiency is improved, but dielectric properties deteriorate due to contamination and mass transfer of materials from electronic devices

Engineering Contradiction:

Improveheat transfer efficiencyVSAvoiddielectric properties

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-formulating the heat-transfer liquid with specific solutes (fluorinated compounds, esters, ethers, or hydrocarbons) that will inhibit mass transfer of materials from electronic devices before contamination occurs. This preventive formulation ensures the liquid maintains its dielectric properties while still providing effective heat transfer cooling

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the chemical composition parameters of the heat-transfer liquid by specifying precise compositional ranges (e.g., first solvent 5-40%, second solvent 30-60%, third solvent 5-40%) and selecting compounds with specific molecular structures that balance thermal conductivity with dielectric stability, thereby resolving the contradiction between heat transfer efficiency and dielectric property maintenance

Inventive Principle:

Principle #35Parameter changes

2Temperature

If heat-transfer liquid is used for liquid immersion cooling, then cooling performance is improved, but chemical properties deteriorate due to contamination

Engineering Contradiction:

Improvecooling performanceVSAvoidchemical properties

Core Design Contradiction:

TemperatureVSStability of the object's composition

Solution Approach 1:

The patent converts the potential harm of liquid-contaminant interaction into a benefit by selecting solutes that actively inhibit mass transfer of materials from electronic devices. The formulated liquid uses specific chemical compounds (fluorinated compounds, esters, ethers, hydrocarbons) that resist absorbing or reacting with materials from electronic components, thereby maintaining chemical stability while providing superior cooling performance

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of manufacture

If conventional heat-transfer liquid formulation is used, then manufacturing simplicity is maintained, but contamination prevention capability is insufficient

Engineering Contradiction:

Improveformulation simplicityVSAvoidcontamination prevention

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies composite materials by formulating the heat-transfer liquid as a multi-component mixture (first solvent, second solvent, third solvent, and optional fourth solvent) where each component contributes specific properties. This composite formulation enhances contamination prevention capability through synergistic effects while maintaining practical manufacturability through straightforward mixing processes and available commercial-grade ingredients

Inventive Principle:

Principle #40Composite materials

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 solution effectively prevents contamination and maintains the integrity of the heat-transfer liquid, reducing failure rates and ensuring reliable operation of electronic data storage devices by maintaining the dielectric and chemical properties of the solvent.

Implementation Method 1

the solute is chosen to inhibit mass transfer of materials from electronic devices and equipment

Methodology Applied

Scientific EffectMass transfer inhibition:

Implementation Method 2

maintaining the dielectric and chemical properties of the solvent

Methodology Applied

Scientific EffectDielectric property maintenance: Dielectric

Data Source

PatentUS20240327694A1Heat-transfer liquid solution, and related methods of making and using

Publication Date: 2024.10.03 SEAGATE TECH LLC

AI summary

The present disclosure includes methods of making a heat-transfer liquid solution by combining a heat-transfer liquid with a solute component to form a heat-transfer liquid solution, and related heat-transfer liquid solutions and methods of using.