Multi-Chamber Vapor Chamber with Distinct Working Fluids

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Solution Overview

Problem

Conventional heat pipes and vapor chambers are limited to handling a single heat source and fail in extreme environments, where the working fluid may freeze or evaporate, disrupting heat conduction.

Innovation Solution

A vapor chamber structure with multiple internal independent chambers, each containing a working fluid with different physical or chemical properties, and equipped with capillary structures, allowing it to effectively manage heat from multiple heat sources with varying properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single working fluid is used in a conventional vapor chamber, then the structure is simple, but it cannot adapt to multiple heat sources with different temperature properties

Engineering Contradiction:

Improveadaptability to multiple heat sourcesVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The vapor chamber is divided into multiple independent chambers, each containing a different working fluid suitable for specific temperature ranges. This segmentation allows each chamber to independently handle heat from different heat sources with varying temperature properties, thereby achieving adaptability to multiple heat sources while maintaining manageable structural complexity through modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the vapor chamber are assigned different working fluids with specific properties tailored to local thermal requirements. Each independent chamber is optimized for its specific temperature range, enabling the overall structure to handle diverse thermal conditions effectively without requiring complete redesign of the entire system.

Inventive Principle:

Principle #3Local quality

2Reliability

If extreme temperatures are encountered, then heat conduction efficiency is high for single heat source, but the working fluid may freeze or evaporate causing system failure

Engineering Contradiction:

Improvecontinuous operation in extreme environmentsVSAvoidfreezing or evaporation of working fluid

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system preemptively addresses extreme temperature conditions by equipping different chambers with working fluids selected for their appropriate freezing and boiling points. This prior preparation ensures that when extreme temperatures occur, the appropriate chamber maintains functionality while others may fail, preventing complete system failure and ensuring continuous heat conduction operation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

Different working fluids are selected with varying physical parameters including freezing points and boiling points to match the expected temperature ranges of different heat sources. This parameter optimization ensures that each fluid remains in its liquid phase within its designated temperature range, preventing freezing or evaporation under normal operating conditions.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If multiple working fluids with different properties are used, then heat conduction for different heat sources is optimized, but manufacturing complexity increases

Engineering Contradiction:

Improveheat conduction efficiencyVSAvoidmanufacturing complexity

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The manufacturing process is segmented into separate steps for each independent chamber, allowing each chamber to be filled with its specific working fluid independently. This segmentation simplifies manufacturing by avoiding the complexity of mixing multiple fluids or creating complex internal structures, while still achieving optimized heat conduction for different heat sources through the use of appropriate fluids in each chamber.

Inventive Principle:

Principle #1Segmentation

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

Enables efficient heat conduction across different environments by utilizing diverse working fluids and capillary structures, ensuring continuous operation even in extreme conditions.

Implementation Method 1

A capillary structure is disposed in each of the independent chambers

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Implementation Method 2

By means of the change of the two-phase flow of the working fluid, the heat pipe and vapor chamber can quickly conduct heat

Methodology Applied

Scientific EffectPhase change: Phase Change

Implementation Method 3

The independent chambers are respectively in contact with different heat sources with different properties to conduct the heat

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11397056B2Vapor chamber structure

Publication Date: 2022.07.26 ASIA VITAL COMPONENTS (CHINA) CO LTD

AI summary

A vapor chamber structure includes a main body having multiple internal independent chambers. A capillary structure is disposed in each of the independent chambers. A working fluid is contained in each of the independent chambers. The working fluids contained in the independent chambers have different physical or chemical properties. The independent chambers are respectively in contact with different heat sources with different properties to conduct the heat. Accordingly, one single vapor chamber structure can provide complex heat conduction effect for different heat sources.