Image Display Device Asymmetric Airflow Cooling
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Solution Overview
Problem
Outdoor image display devices face heat dissipation challenges due to sunlight exposure and internal heat generation, leading to potential failure from excessive temperature, especially when heat is concentrated in specific areas.
Innovation Solution
The implementation of a heat dissipation structure that includes a fan to create airflow, airflow distribution devices to direct airflow asymmetrically based on temperature differences between the display and circuit components, and a controller to adjust airflow distribution dynamically according to environmental conditions, ensuring efficient cooling and preventing heat concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is installed to provide airflow for heat dissipation, then heat dissipation capability is improved, but device complexity increases
Solution Approach 1:
The patent implements a controllable fan that dynamically adjusts its operation based on temperature sensor feedback. The controller activates the fan when temperature exceeds a threshold and deactivates it when temperature is within acceptable range, transforming a static cooling system into a dynamic one that adapts to thermal conditions.
Solution Approach 2:
The patent incorporates temperature sensors that continuously monitor thermal conditions and provide feedback to the controller. This feedback mechanism enables the system to automatically adjust fan operation based on real-time temperature data, creating a closed-loop control system that optimizes heat dissipation while minimizing unnecessary fan operation.
2Temperature
If airflow is distributed uniformly to all components, then manufacturing simplicity is maintained, but heat dissipation efficiency deteriorates due to concentrated heat in specific areas
Solution Approach 1:
The patent implements selective airflow distribution where the fan is positioned to direct cooling air specifically toward heat-generating components such as power amplifiers and processors. The housing structure includes designated airflow passages that channel cool air to high-heat areas and direct warm air exhaust away from sensitive components, creating localized thermal management zones.
Solution Approach 2:
The patent employs asymmetric airflow path design where the fan creates a non-uniform flow pattern that targets specific heat-generating components rather than distributing air evenly throughout the housing. The airflow distribution is intentionally asymmetric to match the asymmetric thermal load distribution of the electronic components.
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 solution effectively manages heat dissipation in outdoor image display devices by dynamically distributing airflow to areas of highest temperature need, thereby preventing component failure and maintaining device performance.
Implementation Method 1
a fan that creates an airflow from one side to the other side of the display so as to cool the display and the circuit components
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
An image display device (200) for efficiently cooling a display ((240) and internal circuit components (251) thereof. The image display device (200) including a display (240) for displaying visual information, circuit components (251) spaced apart from a rear side of the display (240), a fan (260) installed on the rear side of the display (240) that generates an airflow from one side of the display to the other side of the display so as to cool the display and the circuit components, and an airflow distribution device (281-283) facing the fan (260) to selectively distribute the airflow generated by the fan towards the display and the circuit components based on temperatures of the display and the circuit components.