Hollow Fin Casing for Electronic Device Thermal Management
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Solution Overview
Problem
As electronic devices, such as industrial cameras, generate increasing heat due to improved performance and functions, conventional heat dissipation methods are inadequate, leading to potential degradation or breakdown of components and user safety concerns regarding surface temperatures.
Innovation Solution
The electronic device incorporates a casing with hollow fins and heat-transfer members to enhance heat dissipation, increasing the surface area for thermal convection and using a burn prevention cover to manage surface temperatures, while maintaining a compact size and ensuring user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heat dissipation methods are used, then device simplicity is maintained, but heat dissipation effectiveness is insufficient leading to component degradation and user safety issues
Solution Approach 1:
The casing is segmented into multiple fins that extend from the base structure, creating numerous heat dissipation surfaces. Each fin acts as an independent heat transfer element, collectively providing enhanced cooling capacity without requiring a completely different cooling system architecture.
Solution Approach 2:
The heat dissipation solution transitions from a two-dimensional surface to a three-dimensional structure by adding fins that extend in the vertical dimension. This increases the effective heat transfer area without significantly increasing the horizontal footprint of the device.
2Productivity
If power consumption is increased to improve performance, then device functionality is enhanced, but heat generation increases leading to overheating risks
Solution Approach 1:
The design converts the harmful effect of increased heat generation (from higher power consumption) into a beneficial feature by using the heat itself to drive natural convection currents. The heated air rises through and around the fins, creating passive airflow that enhances cooling without requiring additional power for fans or pumps.
3Temperature
If heat dissipation surface area is increased, then heat flow rate is improved, but device size increases
Solution Approach 1:
The fin structure utilizes the vertical dimension to multiply heat transfer area. Instead of expanding the device horizontally to provide more cooling surface, fins extend upward, creating a tower-like heat dissipation structure that provides large surface area within a compact footprint.
Solution Approach 2:
The fin structure is integrated within the overall device housing, with fins nested between other device components. This allows the heat dissipation structure to occupy space that would otherwise be unused, providing cooling functionality without increasing the external dimensions of the device.
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
This configuration effectively increases the heat flow rate and reduces surface temperatures, preventing overheating and ensuring user safety while maintaining performance and preventing degradation of electronic components.
Implementation Method 1
increasing the surface area for thermal convection
Implementation Method 2
heat-transfer members to enhance heat dissipation, increasing the heat flow rate
Data Source
AI summary
An electronic device includes a casing and substrates. The casing includes a plurality of fins including hollow fins. The substrates are inserted in the hollow fins so as to be sandwiched between inner walls of the hollow fins in a contact or non-contact manner, and that include electronic circuits.