Capillary Structure Layout for Separate Vapor-Liquid Heat Dissipation
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Solution Overview
Problem
Conventional capillary structures in two-phase fluid heat dissipation devices suffer from interference between vapor and liquid working fluids, leading to blocked paths and inefficient circulation due to thicker or multilayer designs.
Innovation Solution
A capillary structure with staggered column bodies and passages in a main body, allowing independent spreading and backflow paths for vapor and liquid working fluids, preventing interference and enhancing circulation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If thicker capillary structure or multilayer capillary structure is employed to enhance water content, then the water content of the capillary structure in the evaporation section is enhanced, but the vapor working fluid and the liquid working fluid interfere with or obstruct each other, blocking the paths or passages
Solution Approach 1:
The capillary structure is divided into multiple independent capillary channels, each with its own passage. The vapor working fluid and liquid working fluid are routed through separate passages within the same capillary channel, preventing interference while maintaining sufficient water content through the multi-channel design
Solution Approach 2:
The patent introduces a vertical dimension by stacking multiple capillary channels in layers, with passages arranged at different heights. This three-dimensional arrangement allows vapor and liquid to flow independently in different vertical levels, eliminating mutual obstruction while providing adequate water supply capacity
2Temperature
If conventional two-phase transformation heat dissipation device is used, then heat dissipation is achieved, but the vapor working fluid is interrupted in the voids of the capillary structure and cannot smoothly spread to the condensation section
Solution Approach 1:
Different regions of the capillary structure are designed with different passage configurations. The evaporation section has passages optimized for liquid supply, while the condensation section has passages optimized for vapor collection. This local optimization ensures smooth vapor spreading to the condensation section without interruption
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
Ensures smooth circulation of vapor and liquid working fluids without obstruction, improving two-phase fluid circulation efficiency in heat dissipation devices.
Implementation Method 1
capillary structure and heat dissipation device thereof, which can provide independent circulation paths respectively for the vapor working fluid and the liquid working fluid
Implementation Method 2
conventional two-phase transformation heat dissipation device is widely used to conduct the heat and heat-exchange with outer side
Data Source
AI summary
A capillary structure and a heat dissipation device thereof are disclosed. The capillary structure is applied to a two-phase fluid heat dissipation device. The capillary structure has a main body having an internal closed space. The main body has a top layer formed with multiple passages in communication with the closed space of the main body. Multiple column bodies are disposed in the closed space. The column bodies and the passages are staggered from each other. The heat dissipation device has an internal airtight chamber. A working fluid is filled in the airtight chamber. The capillary structure is disposed in the airtight chamber. The capillary structure provides respective bypass paths for the vapor working fluid and the liquid working fluid. Accordingly, the liquid working fluid and the vapor working fluid in the capillary structure will not interfere with each other or be interrupted by each other.