Hollow Fin Casing Cooling for High-Heat Electronic Circuits
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Solution Overview
Problem
As electronic devices improve in performance and function, they generate more heat, leading to challenges in maintaining performance guarantee temperatures inside casings and preventing overheating of surface temperatures, which can cause degradation or user safety issues.
Innovation Solution
The electronic device incorporates hollow fins on its casing, with heat-transfer members to enhance heat dissipation, and a burn prevention cover to manage surface temperatures, allowing for increased heat flow rates while maintaining user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power consumption and heat generation are increased to improve performance and functions, then device capability is improved, but temperature inside casing and surface temperature increase causing performance degradation and safety issues
Solution Approach 1:
The casing is segmented into multiple fins that divide the heat dissipation surface into numerous smaller sections, increasing the total surface area for heat transfer to the surrounding air
Solution Approach 2:
The heat dissipation structure extends from a two-dimensional surface into the third dimension by creating protruding fins, thereby significantly increasing the effective heat transfer surface area without substantially increasing the device footprint
2Reliability
If heat dissipation is enhanced to maintain performance guarantee temperature, then internal temperature control is improved, but surface temperature may still exceed safe touch limits
Solution Approach 1:
The burn prevention cover is selectively positioned only on the top surface where users are most likely to touch, providing localized thermal protection without affecting heat dissipation from other surfaces
Solution Approach 2:
The burn prevention cover acts as an intermediary layer between the hot casing surface and the user's hand, preventing direct thermal contact while allowing the heat dissipation function to operate underneath
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 heat dissipation, reduces surface temperatures that may be touched by users, and maintains performance by managing heat flow and surface temperature within safe limits.
Implementation Method 1
hollow fins on its casing, with heat-transfer members to enhance heat dissipation
Implementation Method 2
enhance heat dissipation
Implementation Method 3
heat-transfer members to enhance heat dissipation
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
An electronic device (1) according to an embodiment includes a casing (2, 3, 4, 5) and substrates (7C, 7D, 7E). The casing includes a plurality of fins including hollow fins (5a, 5b, 5c, 5d, 5e). 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.