Heat Pipe Bushing Structure for Quiet High-Fluid Cooling
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Solution Overview
Problem
Heat pipes with increased working fluid amounts can experience noise due to collisions between non-vaporized and vaporized fluid in the adiabatic section, affecting heat dissipation efficiency.
Innovation Solution
A heat pipe design incorporating a bushing in the adiabatic section, which separates the non-vaporized and vaporized working fluid, preventing collisions and allowing for increased fluid volume to enhance heat dissipation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the amount of working fluid in the heat pipe is increased, then the heat dissipation efficiency is improved, but noise is generated due to collisions between non-vaporized and vaporized working fluid in the adiabatic section
Solution Approach 1:
The adiabatic section is segmented into a first adiabatic section and a second adiabatic section by introducing a bushing structure. This segmentation separates the flow paths of non-vaporized and vaporized working fluid, preventing their collision and the resulting noise, while maintaining the heat dissipation function of the adiabatic section
Solution Approach 2:
The bushing acts as an intermediary structure in the adiabatic section that mediates the interaction between non-vaporized and vaporized working fluid. It provides separate flow channels that guide the two phases past each other without direct contact, eliminating noise while preserving thermal conduction
2Quantity of substance
If the amount of working fluid is increased to improve heat dissipation, then more fluid is available for phase change, but the working fluid may not be completely vaporized in the evaporation section leading to collisions in the adiabatic section
Solution Approach 1:
The adiabatic section is divided into two distinct flow regions by the bushing: a first flow region for non-vaporized working fluid and a second flow region for vaporized working fluid. This allows the heat pipe to contain more working fluid without causing harmful collisions, as each phase has its own designated flow path
Solution Approach 2:
Different regions of the adiabatic section are given different functional qualities: the first adiabatic section handles non-vaporized fluid while the second adiabatic section handles vaporized fluid. This local differentiation allows the system to accommodate larger working fluid quantities without uniform negative effects throughout the entire adiabatic section
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 bushing effectively prevents fluid collisions, reducing noise and improving heat dissipation efficiency by allowing more working fluid without noise interference, thus enhancing the heat pipe's thermal management capabilities.
Implementation Method 1
the working fluid evaporates in the evaporation section into gas form
Implementation Method 2
releases heat and condenses into liquid
Implementation Method 3
A heat pipe may be included in such a device for dissipating heat from the heat-generating components
Data Source
AI summary
A heat pipe operating noiselessly by preventing, or reducing the effects of, the mixing of working fluid at different temperatures includes a hollow tube, a capillary structure, a working fluid, and a bushing. The porous capillary structure able to carry the fluid is disposed on an inner wall of the tube. The bushing is hollow, and the bushing is disposed on a surface of the capillary structure away from the tube. The heat pipe is divided into evaporation, adiabatic, and condensation sections, the capillary structure being at all sections. The working fluid is disposed in the capillary structure of the evaporation section, the bushing is disposed on a side of the capillary structure of the adiabatic section.