Radiant-Heat Sheet Placement for Mobile Terminal Thermal Management
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Solution Overview
Problem
The slimming of mobile communication terminals and the use of high-specification Application Processors have led to increased heat generation, particularly at the boundary between the main board and battery pack, making it challenging to dissipate heat without degrading the performance of NFC antennas when a radiant-heat sheet is applied.
Innovation Solution
The implementation of a mobile communication terminal design that includes radiant-heat sheets positioned between the display module and the rear cover, and between the printed circuit board and the rear cover, allowing heat to be transferred from the heat generation source to a region without an NFC antenna, thereby reducing the temperature of the heat source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the area of the radiant-heat sheet is widened to dissipate heat, then heat dissipation performance is improved, but the performance of the NFC antenna is degraded
Solution Approach 1:
The radiant-heat sheet is segmented into a first radiant-heat sheet and a second radiant-heat sheet. The first radiant-heat sheet is disposed on the heat generation source to transfer heat, while the second radiant-heat sheet is disposed on the rear cover in a region not overlapping the NFC antenna. This segmentation allows heat dissipation functionality to be separated from the NFC antenna region, preventing performance degradation of the antenna while maintaining effective heat transfer.
2Volume of moving object
If the terminal body is slimmed down, then device portability is improved, but heat dissipation capability is reduced
Solution Approach 1:
The patent utilizes the thickness dimension by disposing the radiant-heat sheet between the main board and the rear cover within the slim terminal body. This allows heat transfer functionality to be integrated in the vertical dimension without increasing the overall footprint or compromising the slim profile 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 design effectively reduces the temperature of the heat generation source by transferring heat to a relatively cold region, improving heat dissipation without degrading the NFC antenna performance, thus addressing the heat management issue in slimmed mobile communication terminals.
Implementation Method 1
radiant-heat sheet positioned between the first surface of the support structure and the display module
Data Source
AI summary
A mobile communication terminal with a radiant-heat function is provided. The mobile communication terminal includes: a display module; a rear cover; an inner support structure positioned between the display module and the rear cover and including a first surface facing the display module and a second surface facing an opposite side to the display module; a first radiant-heat sheet positioned between the first surface of the support structure and the display module; a printed circuit board positioned between the first radiant-heat sheet and the first surface of the support structure; and a second radiant-heat sheet positioned between the second surface of the support structure and the rear cover.