Dual Display Sealed Plenum Cooling
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Solution Overview
Problem
Electronic displays used in high-temperature environments face cooling challenges, as ingesting ambient air can introduce dust and contaminants, leading to premature failures, and space constraints often require a back-to-back orientation.
Innovation Solution
A sealed plenum contains electronic components, allowing external air to be ingested between display assemblies, with movable components for easy servicing and heat transfer through metallic walls, preventing contamination and facilitating cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If ambient air is ingested for cooling, then heat removal is improved, but dust and contaminants are introduced
Solution Approach 1:
A sealed plenum chamber acts as an intermediary structure between the external environment and the electronic displays. The plenum allows controlled air flow through designated pathways while maintaining a barrier that prevents dust and contaminants from reaching the displays directly. This mediator enables cooling functionality without transferring harmful particles to the sensitive electronic components.
Solution Approach 2:
The sealed plenum creates a protected environment that isolates the electronic displays from the contaminated external atmosphere. By maintaining a sealed barrier, the plenum effectively creates an inert zone where air can circulate for cooling purposes without introducing harmful particles, thus protecting the displays while enabling thermal management.
2Area of stationary object
If displays are placed back to back to save space, then space utilization is improved, but access for servicing and replacement becomes difficult
Solution Approach 1:
The plenum chamber incorporates movable walls that can be dynamically opened or adjusted. This dynamic structure allows the tightly packed back-to-back display configuration to be easily accessed for servicing when needed, while maintaining the space-saving compact arrangement during normal operation. The movable components enable transition between closed protective state and open accessible state.
Solution Approach 2:
The plenum is divided into separable sections with movable walls that can be independently opened. This segmentation allows selective access to specific display assemblies without requiring complete disassembly of the entire structure, facilitating easy maintenance and replacement while preserving the integrated back-to-back configuration.
3Object-affected harmful factors
If a sealed plenum is used to prevent contamination, then protection from dust is improved, but heat removal becomes more difficult
Solution Approach 1:
The plenum structure implements differentiated local properties: sealed walls provide contamination protection in most areas, while designated openings and pathways in specific locations enable controlled air flow for heat removal. This local quality differentiation allows the sealed environment to protect against dust while maintaining thermal management capabilities through strategically placed ventilation zones.
Solution Approach 2:
The plenum serves as an intermediary thermal management system that mediates between the need for sealed protection and the need for heat dissipation. Controlled air pathways act as intermediaries that allow thermal energy to be removed from the displays while the sealed walls continue to block external contaminants, thus resolving the contradiction between protection and cooling.
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 configuration effectively cools electronic displays while preventing dust and contamination, allowing for easy maintenance and efficient heat removal in compact, high-temperature environments.
Implementation Method 1
heat transfer through metallic walls
Data Source
AI summary
An electronic display assembly includes a sealed chamber positioned entirely between a first electronic display layer and a second electronic display layer. A first gap is located between the sealed chamber and the first electronic display layer. A second gap located between the sealed chamber and the second electronic display layer. The first and second gaps are configured to receive ambient air. A fan circulates air within the sealed chamber when operated.