Reinforced Refrigerant Flow Paths for Phase-Change Heat Dissipation
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Solution Overview
Problem
Existing heat dissipation systems for electronic devices, particularly those using aluminum alloys, face limitations in thermal conductivity, material restrictions, and increased product size, and are limited by the use of expensive materials and refrigerants that may harm the environment.
Innovation Solution
An active heat dissipation apparatus utilizing a thermal conduction panel body with a refrigerant flow space, featuring a first refrigerant flow path adjacent to a heat dissipation target and second flow paths with strength reinforcement, allowing for efficient phase change of refrigerants like water, and using SUS material with lower thermal conductivity to enhance heat dissipation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If aluminum alloy materials are used for heat dissipation fins, then thermal conductivity is improved, but material cost increases and environmental harm occurs
Solution Approach 1:
The patent changes the physical state of the refrigerant from liquid to gas and back through phase change, utilizing latent heat of vaporization to dramatically improve heat dissipation efficiency. This allows the use of environmentally friendly refrigerants like R134a or R125 instead of harmful aluminum alloys, resolving the environmental harm issue while maintaining or improving heat dissipation performance
Solution Approach 2:
The core invention utilizes phase transition of refrigerant between liquid and gas states. The refrigerant absorbs heat during vaporization and releases heat during condensation, creating an efficient heat transfer cycle that eliminates the need for traditional metal heat dissipation materials and their associated environmental problems
2Temperature
If thermal conduction materials are used, then heat transfer ability is improved, but material cost increases
Solution Approach 1:
The patent employs a refrigerant circulation system with vaporization and condensation zones, using fluid dynamics and phase change rather than solid thermal conduction materials. This hydraulic/pneumatic approach achieves superior heat transfer with lower cost materials like steel or aluminum for the container, eliminating expensive specialized thermal conduction materials
Solution Approach 2:
By utilizing phase transition of common refrigerants instead of expensive thermal conduction materials, the system achieves high heat transfer ability while using inexpensive, readily available materials for the heat dissipation apparatus structure
3Temperature
If heat dissipation fins are added, then heat dissipation performance is improved, but device complexity increases
Solution Approach 1:
The patent merges the heat dissipation function with the refrigerant circulation system itself. The container walls and internal structures serve dual purposes as both structural elements and heat transfer surfaces, eliminating the need for separate heat dissipation fins and reducing overall structural complexity
Solution Approach 2:
The refrigerant circulation system performs multiple functions: heat absorption, heat transfer, and heat release all within a single integrated apparatus. The same structure that contains the refrigerant also serves as the heat dissipation mechanism, eliminating redundant components
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 apparatus achieves improved heat dissipation performance, reduced manufacturing costs, and compliance with environmental regulations by maximizing heat transport ability and using water as a refrigerant, while maintaining product design diversity and manufacturability.
Implementation Method 1
a first refrigerant flow path positioned to be adjacent to a press-fitting portion provided on a rear surface portion of a heat dissipation housing main body that is a heat dissipation target, the first refrigerant flow path having a vaporization zone in which the refrigerant changes from a liquid phase to a gaseous phase
Implementation Method 2
The apparatus achieves improved heat dissipation performance, reduced manufacturing costs, and compliance with environmental regulations by maximizing heat transport ability
Data Source
AI summary
The present disclosure relates to an active heat dissipation apparatus including a thermal conduction panel body having a refrigerant flow space in which a refrigerant is stored and flows, the refrigerant flow space being formed in the thermal conduction panel body, in which the refrigerant flow space includes a first refrigerant flow path positioned to be adjacent to a press-fitting portion provided on a rear surface portion of a heat dissipation housing main body that is a heat dissipation target, the first refrigerant flow path having a vaporization zone in which the refrigerant changes from a liquid phase to a gaseous phase, and a plurality of second refrigerant flow paths provided in a condensation zone provided in a portion other than the first refrigerant flow path and configured to guide a flow of a liquid refrigerant to the vaporization zone, and in which the second refrigerant flow paths protrude in the refrigerant flow space and have surfaces that adjoin one another and are in surface contact with one another, and the second refrigerant flow paths form independent flow paths for the liquid refrigerant by a plurality of strength reinforcement portions provided straight and inclined toward the first refrigerant flow path.