Radiation Fin Heat Dissipation Unit with Internal Flow Channels
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Solution Overview
Problem
Conventional heat dissipation devices have low efficiency and large volume due to reduced heat dissipation efficiency of radiation fins with increased height, which fails to effectively manage heat from high-power electronic systems.
Innovation Solution
A heat dissipation unit with radiation fins formed by closing plate members to create independent flow channels filled with working fluid, allowing liquid-vapor circulation for enhanced heat transfer, which is facilitated by wick structures on the inner walls of the channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the radiation fins are increased in size/height to provide more area for heat dissipation, then the heat dissipation area is increased, but the heat dissipation efficiency of the radiation fins is reduced
Solution Approach 1:
The radiation fin is segmented into multiple independent flow channels formed by closing first and second plate members to each other. This segmentation allows the working fluid to flow through separate channels, creating multiple heat transfer paths that improve overall heat dissipation efficiency while maintaining a compact structure.
Solution Approach 2:
The invention uses a working fluid filled in the independent flow channels to transfer heat. The fluid circulation system, including the base and radiation fins, creates an efficient heat transfer medium pathway that significantly improves heat dissipation efficiency compared to conventional air-cooled radiation fins.
2Area of stationary object
If the radiation fins are increased in size/height to provide more area for heat dissipation, then the heat dissipation area is increased, but the volume of the heat dissipation device is increased
Solution Approach 1:
The independent flow channels are nested within the radiation fin structure by closing the first and second plate members to each other. This nesting approach allows the heat transfer fluid channels to be integrated within the radiation fin itself, eliminating the need for separate external cooling systems and reducing overall device volume.
Solution Approach 2:
The invention transitions from conventional external heat dissipation structures to an internal dimension approach by forming flow channels within the radiation fin. This dimensional change allows heat transfer to occur internally through the working fluid, enabling more efficient heat dissipation in a compact volume.
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 solution significantly improves heat dissipation efficiency while reducing the overall volume of the heat dissipation device by leveraging the liquid-vapor circulation mechanism within the radiation fins.
Implementation Method 1
heat produced by the heat source is absorbed by the base and transferred from the second side to the first side of the base and then to the radiation fins
Implementation Method 2
When the working fluid is heated and vaporized in the independent flow channels in communication with each other, heat is quickly carried by the vapor-phase working fluid to another ends of the independent flow channels
Implementation Method 3
At the farther ends of the independent flow channels, the vapor-phase working fluid is condensed to a liquid
Implementation Method 4
When the working fluid is heated and vaporized in the independent flow channels
Implementation Method 5
With the aid of at least one wick structure provided on the inner wall surfaces of the independent flow channels, the liquid-phase working fluid flows back to the ends of the independent flow channels that are closer to the heat source
Data Source
AI summary
A heat dissipation unit and a heat dissipation device using same are disclosed. The heat dissipation device includes a base and one or more heat dissipation units. The base has a first side and an opposite second side; and the heat dissipation units respectively include at least one radiation fin correspondingly provided on the first side of the base. The radiation fin is formed by correspondingly closing a first plate member and a second plate member to each other, such that a plurality of independent flow channels is defined between the closed first and second plate member. The independent flow channels communicate with each other. And, the independent flow channels respectively have an amount of working fluid filled therein.