Outdoor Display Thermal Management via Clearance Airflow
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Solution Overview
Problem
Outdoor display apparatuses face temperature instability due to self-generated heat and direct sunlight, leading to malfunctions and reduced lifespan, with existing solutions increasing production costs and size through the use of air conditioners.
Innovation Solution
An outdoor display apparatus with enhanced temperature stability is achieved by evenly circulating airflows through main heat-generating parts using an improved air flow path, eliminating the need for an expensive and large-sized air conditioner, and maintaining uniform temperature distribution by discharging heat through strategically designed clearance spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an air conditioner including a compressor is installed to cool the heat generated inside, then the temperature control effectiveness is improved, but the production cost increases and the overall size increases
Solution Approach 1:
The invention extracts and removes the air conditioner component from the display apparatus, replacing it with a simplified cooling system that uses only a fan and strategically designed clearance spaces to achieve effective heat dissipation without the complexity and cost of a compressor-based air conditioner
Solution Approach 2:
The cooling system is segmented into distinct functional zones: an upper clearance space for hot air discharge, a lower clearance space for cool air intake, and side clearance spaces for lateral airflow. This segmentation creates efficient natural convection pathways that eliminate the need for complex mechanical cooling components
2Loss of time
If air is circulated through main heat-generating parts, then the temperature calibration time is shortened and fan operation time is reduced, but the air flow path design complexity increases
Solution Approach 1:
Clearance spaces are strategically created at specific locations (upper, lower, and side portions) where thermal convection is most effective. The upper clearance space is positioned directly above heat-generating components for hot air discharge, while the lower clearance space is positioned below for cool air intake, creating localized optimized airflow paths that reduce overall calibration time without requiring complex system-wide redesign
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 reduces the time required for temperature calibration, minimizes fan operation time, prevents malfunctions, and maintains stable internal temperatures, while lowering production costs and providing a compact product.
Implementation Method 1
the operation time of the fan that induces the airflow can be reduced
Implementation Method 2
the heat generated inside the apparatus and direct sunlight raise the temperature inside the apparatus
Implementation Method 3
discharging heat inside the apparatus through an improved air flow path
Data Source
AI summary
An outdoor display apparatus having enhanced temperature stability comprises: a display panel having a driver board; a rear bracket having at least one opening for air circulation that is coupled to the display panel having the driver board; and a housing for accommodating a rear bracket coupled to the display panel, wherein: the inlet is formed at a lower portion of a rear surface of the housing, the outlet is formed at an upper portion of a rear surface of the housing, and air flows through a first clearance space existing between the front surface of the display panel and the transparent optical member, a second clearance space existing between the rear surface of the display panel and the rear bracket having the opening for air circulation, and a third clearance space existing between the rear bracket having the opening for air circulation and the housing.