Evaporator Wick and Partition Layout for Uniform Cooling

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Solution Overview

Problem

Existing evaporation devices face issues with non-uniform heat exchange, fluid leakage, and inefficient fluid distribution, leading to incomplete heat dissipation and potential damage to heat sources.

Innovation Solution

The evaporation device incorporates a distributor to mix external working fluid with existing fluid using capillary force, a wick to spread fluid evenly, and a partition wall to control vapor flow, ensuring uniform heat exchange and efficient heat dissipation without additional power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If working fluid flows through multiple flow paths in the evaporator, then heat exchange area is increased, but fluid leakage risk increases and vapor flow smoothness deteriorates

Engineering Contradiction:
Improveheat exchange areaVSAvoidfluid leakage risk
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The evaporator is divided into multiple flow paths separated by partition walls, with each path containing a distributor. This segmentation allows independent control of fluid distribution in each path while maintaining overall heat exchange area, preventing fluid leakage between paths through the partition structures.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If working fluid flows through multiple flow paths in the evaporator, then heat exchange area is increased, but vapor flow smoothness deteriorates

Engineering Contradiction:
Improveheat exchange areaVSAvoidvapor flow smoothness
Core Design Contradiction:
Area of stationary objectVSSpeed

Solution Approach 1:

Each flow path is equipped with a distributor that creates localized uniform fluid distribution patterns. The partition walls ensure that vapor generated in each path flows smoothly through its designated path without turbulence from adjacent paths, maintaining vapor flow smoothness while preserving heat exchange area.

Inventive Principle:
Principle #3Local quality

3Device complexity

If working fluid is not uniformly delivered to the wick, then device complexity is reduced, but capillary action efficiency deteriorates and evaporating action becomes uneven

Engineering Contradiction:
Improvefluid distribution structureVSAvoidcapillary action efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

Distributors are installed in each flow path to preliminarily uniformize the working fluid distribution before it reaches the wick. This preliminary action ensures uniform fluid delivery to the wick surface, enabling efficient and uniform capillary action and evaporating action across the entire wick area.

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If working fluid is not uniformly delivered to the wick, then device complexity is reduced, but evaporating action uniformity deteriorates

Engineering Contradiction:
Improvefluid distribution structureVSAvoidevaporating action uniformity
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

Distributors are installed in each flow path to preliminarily uniformize the working fluid distribution before it reaches the wick. This preliminary action ensures uniform fluid delivery to the wick surface, enabling efficient and uniform capillary action and evaporating action across the entire wick area.

Inventive Principle:
Principle #10Preliminary action

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 achieves uniform heat dissipation across the entire area, preventing fluid leakage and enhancing the efficiency and durability of heat sources by smoothly transferring and evaporating the working fluid.

Implementation Method 1

a wick to spread fluid evenly

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

evaporating a working fluid

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

heat generated from a heat source for evaporating a working fluid

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentEP4119881B1Evaporation device for cooling
Publication Date: 2025.06.25 HYOSUNG HEAVY IND CORP
  • EP4119881B1 patent drawingFigure 1
  • EP4119881B1 patent drawingFigure 2
  • EP4119881B1 patent drawingFigure 3

AI summary

The present disclosure is an evaporation device for cooling. In an evaporation space 12 formed inside a housing 10, a wick 16 allows a working fluid to move by capillary force. As the working fluid moves from a lower portion of the evaporation space 12 to an upper portion thereof, that is, from the working fluid inlet pipe 26 to the vapor outlet pipe 28 by the wick 16, the working fluid is evaporated by heat generated from the heat source to become vapor. A partition wall 20 is provided in the evaporation space 12 to control the flow of vapor. The working fluid transferred into the evaporation space 12 is uniformly mixed with the existing working fluid in the lower portion of the evaporation space 12 by a distributor 30.