Variable-Thickness Mesh Wick for Faster Two-Phase Fluid Backflow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional woven mesh capillary structures have limited and uniform voids and meshes, leading to insufficient capillary attraction and water containment, which affects the flexibility and efficiency of two-phase fluid heat dissipation units, resulting in slow backflow and potential dry-out.
Innovation Solution
A mesh capillary woven structure with longitudinal lines of varying thicknesses, intersecting with latitudinal lines to create voids of different sizes, enhancing capillary attraction and water collection ability, and facilitating efficient fluid flow and heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional woven mesh capillary structure with uniform thickness lines is used, then manufacturing is simple, but capillary attraction and water containing ability are insufficient
Solution Approach 1:
The patent applies local quality by using longitudinal lines with different thicknesses (first thickness and second thickness) within the same woven mesh structure. This creates local variations in capillary action throughout the structure, enhancing overall water containing ability while maintaining the basic woven mesh manufacturing process.
Solution Approach 2:
The patent changes the parameter of line thickness by incorporating at least two different thickness values for the longitudinal lines. This parameter variation creates voids of different sizes, which improves capillary attraction and water collection ability while still allowing the structure to be manufactured as a woven mesh.
2Device complexity
If conventional woven mesh capillary structure with fixed void sizes is used, then structure is simple, but water containing ability and capillary attraction are limited
Solution Approach 1:
The patent creates local quality variations by forming voids of different sizes through the use of longitudinal lines with different thicknesses. This allows the structure to have both small voids for capillary action and larger voids for water storage, enhancing overall water containing ability while maintaining structural simplicity.
Solution Approach 2:
The patent introduces asymmetry by using longitudinal lines with different thicknesses, which creates voids of unequal sizes. This asymmetric void distribution enhances both capillary attraction and water containing ability compared to a symmetric uniform structure.
3Ease of manufacture
If conventional woven mesh capillary structure is used, then manufacturing process is simple, but backflow speed is slow and dry-out occurs
Solution Approach 1:
The patent changes the thickness parameter of longitudinal lines to create voids of different sizes, which optimizes capillary action and accelerates fluid backflow. This parameter variation enables faster backflow speed while maintaining a relatively simple woven mesh manufacturing process.
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 structure promotes rapid fluid circulation and heat exchange, preventing dry-out and improving heat transfer efficiency by increasing voids and flow-guiding micro-passages, allowing flexible design for different heat dissipation requirements.
Implementation Method 1
the mesh capillary woven structure has more voids with different sizes so that the mesh capillary woven structure has greater capillary attraction and better water collection (containing) ability
Data Source
AI summary
A mesh capillary woven structure is applied to a two-phase fluid heat dissipation unit. The mesh capillary woven structure includes multiple latitudinal lines and multiple longitudinal lines. At least two longitudinal lines with different thicknesses are selectively arranged as a longitudinal line set. The single latitudinal line and one multiple longitudinal line set sequentially repeatedly intersect (and overlap with) each other and are collocated and woven with each other to form the mesh capillary woven structure. Accordingly, the mesh capillary woven structure has more voids with different sizes so that the mesh capillary woven structure has greater capillary attraction and better water collection (containing) ability to greatly enhance the heat transfer performance.