Movable Fluid Structure for Adaptive Electronic Cooling

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Solution Overview

Problem

Computing devices generate significant heat during operation, which can lead to component damage, and existing cooling systems fail to efficiently manage thermal energy due to varying thermal demands from different applications.

Innovation Solution

A thermal management device with movable fluid movement structures, actuated by piezoelectric, shape memory, magnetic, or chemically reactive mechanisms, enhances heat transfer by directing fluid flow and ejecting vapor bubbles, adapting to changing thermal conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a cooling system is designed for high thermal management capacity, then heat dissipation performance is improved, but device complexity and energy consumption increase

Engineering Contradiction:

Improveheat dissipation performanceVSAvoidcooling system complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent implements a movable fluid movement structure that can dynamically adjust its position and configuration based on real-time thermal conditions. The structure transitions between extended and retracted states to optimize fluid flow patterns, enabling the cooling system to adapt to varying thermal loads without requiring a complex fixed infrastructure for all possible cooling scenarios.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes physical parameters of the cooling mechanism by moving the fluid movement structure between different positions and configurations. This dynamic parameter adjustment allows the same structure to serve multiple cooling functions across different operational conditions, reducing the need for multiple dedicated cooling components.

Inventive Principle:

Principle #35Parameter changes

2Temperature

If a cooling system is designed for high thermal management capacity, then heat dissipation performance is improved, but energy consumption increases

Engineering Contradiction:

Improveheat dissipation performanceVSAvoidenergy consumption

Core Design Contradiction:

TemperatureVSUse of energy by moving object

Solution Approach 1:

The movable fluid movement structure is actuated only when thermal conditions require enhanced cooling, transitioning between active and inactive states. This dynamic operation ensures energy is consumed only when necessary for optimal thermal management, rather than continuously operating at full capacity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates thermal sensing capabilities that automatically trigger the fluid movement structure when temperature thresholds are exceeded. This self-regulating mechanism eliminates the need for continuous external control and energy input, allowing the system to serve itself by responding only when thermal management is actually needed.

Inventive Principle:

Principle #25Self-service

3Device complexity

If fixed fluid flow paths are used, then device complexity is reduced, but adaptability to varying thermal conditions deteriorates

Engineering Contradiction:

Improvefluid flow path complexityVSAvoidadaptability to thermal conditions

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent replaces fixed fluid flow paths with a dynamic configuration where the fluid movement structure can change its position and orientation based on thermal requirements. This allows the same physical infrastructure to create different flow patterns, achieving adaptability without proportionally increasing structural complexity.

Inventive Principle:

Principle #15Dynamics

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 device increases thermal transfer efficiency by actively or passively managing fluid flow, preventing vapor bubble adherence and optimizing heat dissipation, thereby protecting components from damage.

Implementation Method 1

actuated by piezoelectric, shape memory, magnetic, or chemically reactive mechanisms

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

actuated by piezoelectric, shape memory, magnetic, or chemically reactive mechanisms

Methodology Applied

Scientific EffectShape memory effect: Shape Memory Alloy

Implementation Method 3

actuated by piezoelectric, shape memory, magnetic, or chemically reactive mechanisms

Methodology Applied

Scientific EffectMagnetic effect: Magnetic Field

Implementation Method 4

the body is configured to transfer heat to the working fluid

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 5

directing fluid flow of the working fluid

Methodology Applied

Scientific EffectConvection: Convection

Implementation Method 6

ejecting vapor bubbles

Methodology Applied

Scientific EffectCavitation: Cavitation

Data Source

PatentUS12484193B2Systems and methods for thermal management of electronic devices

Publication Date: 2025.11.25 MICROSOFT TECHNOLOGY LICENSING LLC

AI summary

A thermal management device includes a body, a fluid movement structure, and a movement mechanism. The body is configured to receive heat from a heat-generating component at a proximal surface, and the fluid movement structure is on a distal surface of the body that is distal to the proximal surface, wherein the fluid movement structure is configured to direct fluid flow of a working fluid and the body is configured to transfer heat to the working fluid. The movement mechanism is configured to move the fluid movement structure relative to the body.