Metal Bezel Thermal Management for Accurate Temperature Sensing
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Solution Overview
Problem
Incorporating accurate temperature measurement into mobile devices is challenging due to heat generated by internal components, which affects the accuracy of infrared temperature sensors and leads to measurement errors.
Innovation Solution
A mobile device design featuring a metal bezel surrounding the display to house a temperature sensor, allowing for quick heat dissipation and blocking external heat, thereby enhancing measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a temperature sensor is incorporated into the mobile device to measure body temperature, then health management functionality is improved, but measurement precision deteriorates due to heat interference from internal components
Solution Approach 1:
The mobile device is divided into distinct thermal zones: the display area generates controlled heat for user comfort, while the temperature sensor area is thermally isolated through the metal bezel structure to prevent interference from internal component heat, enabling accurate body temperature measurement
Solution Approach 2:
The metal bezel acts as a thermal intermediary between the heat-generating display and the temperature sensor. It conducts and dissipates heat away from the sensor area while maintaining structural integrity, thereby protecting measurement precision without compromising the integrated design
2Device complexity
If the temperature sensor is placed near the display for compact design, then device complexity is reduced, but measurement precision deteriorates due to heat from the display
Solution Approach 1:
The metal bezel creates a localized thermal management solution around the temperature sensor. The display area maintains its normal heat-generating function for user comfort, while the sensor area achieves thermal isolation through the conductive bezel structure, allowing both functions to coexist in a compact design
3Measurement precision
If heat dissipation is enhanced to improve temperature sensor accuracy, then measurement precision is improved, but energy loss increases
Solution Approach 1:
The harmful heat affecting the temperature sensor is extracted and redirected through the metal bezel to the display area and external environment. This selective heat removal protects measurement precision while minimizing overall energy loss by utilizing existing thermal pathways rather than adding active cooling systems
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 effectively reduces measurement errors by maintaining thermal equilibrium, ensuring accurate temperature readings through efficient heat management and external heat blocking.
Implementation Method 1
A mobile device design featuring a metal bezel surrounding the display to house a temperature sensor, allowing for quick heat dissipation
Implementation Method 2
a temperature sensor configured to measure a temperature of an object via the metal bezel
Data Source
AI summary
A mobile device and a method thereof are provided. The mobile device includes a display configured to display an image; a metal bezel surrounding an outer perimeter of the display; a temperature sensor configured to measure a temperature of an object via the metal bezel; and a controller configured to control the display to output the temperature measured using the temperature sensor.