Display Enclosure Passive Cooling Exhaust Channel
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Solution Overview
Problem
Existing display enclosure designs for digital display devices often require complex and costly active cooling systems to prevent overheating, especially in outdoor environments where air temperature is uncontrolled.
Innovation Solution
A display enclosure with a passive cooling system that utilizes an internal exhaust channel and fans to circulate air through the enclosure, providing effective cooling without the need for refrigeration or active components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an active cooling system (refrigeration) is used to cool the display device, then the cooling effectiveness is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the refrigeration component from the cooling system, eliminating the need for active cooling machinery. The cooling function is achieved through passive natural convection and radiation mechanisms built into the enclosure structure, thereby reducing device complexity while maintaining cooling effectiveness
Solution Approach 2:
The cooling system utilizes self-service principles by employing natural air convection currents and thermal radiation to cool the display device without external mechanical intervention. The enclosure structure itself provides the cooling function through its design, eliminating the need for active cooling components
2Temperature
If an active cooling system is used to cool the display device, then the cooling effectiveness is improved, but the manufacturing cost increases
Solution Approach 1:
By removing the refrigeration system and active cooling components, the patent significantly reduces manufacturing costs. The passive cooling enclosure uses simple structural elements that are easier and less expensive to manufacture while achieving the required cooling performance
Solution Approach 2:
The patent employs inexpensive passive cooling structures instead of expensive active cooling systems. The enclosure design uses cost-effective materials and construction methods that provide adequate cooling without the high manufacturing costs associated with refrigeration 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 passive cooling system effectively manages heat dissipation for digital display devices, reducing complexity and cost while maintaining performance in outdoor environments, and also acts as an insulative barrier against external heat sources.
Implementation Method 1
The configuration of the exhaust channel can cause airflow to ingress through one side of the display enclosure, circulate through the display enclosure, and then egress through the same side
Implementation Method 2
The first and second recessed surfaces form an exhaust channel between the inner component and the outer component when the inner component is installed within the outer component
Data Source
AI summary
A display enclosure can include a passive cooling system that includes an exhaust channel and a number of fans. The configuration of the exhaust channel can cause airflow to ingress through one side of the display enclosure, circulate through the display enclosure, and then egress through the same side. The exhaust channel can be positioned around the outer edges of the display enclosure to form an insulative barrier to external heat (e.g., sunlight) while at the same time removing heat generated internally.