Electronic Display Cooling With Integrated Heat Exchanger
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Solution Overview
Problem
Existing cooling systems for large electronic displays face challenges such as complex airflow management, spatial constraints, and inefficiencies due to the use of multiple heat exchangers and ducting arrangements, which can lead to increased costs and potential quality issues.
Innovation Solution
The proposed solution involves an electronic display design that includes a housing with a display panel, an inlet and outlet for external air, a closable vent controlled by a temperature sensor, and a heat exchanger with separate paths for internal and external air circulation, allowing for efficient heat exchange without mixing the air streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple heat exchangers and ducting arrangements are used to cool large electronic displays, then cooling coverage is improved, but device complexity and spatial requirements increase
Solution Approach 1:
The patent combines multiple heat exchanger functions into a single integrated heat exchanger unit that serves the entire display assembly. This unified approach eliminates the need for multiple separate heat exchangers and complex ducting arrangements, reducing overall system complexity while maintaining comprehensive cooling coverage across the display surface.
Solution Approach 2:
The single heat exchanger is designed to perform multiple cooling functions simultaneously for different regions of the display. It provides universal cooling capability that replaces what would otherwise require multiple specialized heat exchangers, thereby simplifying the system architecture while achieving the same thermal management objectives.
2Temperature
If multiple heat exchangers and cooling chambers are used to optimise cooling, then cooling efficiency is improved, but volume and weight increase
Solution Approach 1:
The patent merges multiple cooling chambers and heat exchangers into a single integrated cooling system. This consolidation reduces the total volume occupied by cooling components while maintaining the cooling efficiency needed to manage heat from the entire display assembly.
Solution Approach 2:
The heat exchanger is positioned behind the display panel, nesting the cooling function within the existing display structure. This arrangement utilizes available space efficiently, avoiding additional volumetric expansion while providing comprehensive cooling coverage.
3Temperature
If dedicated heat exchangers are used for each cooling zone, then temperature control precision is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple dedicated heat exchanger zones into a single heat exchanger unit with unified manufacturing. This approach maintains the ability to provide zone-specific cooling control while eliminating the manufacturing complexity of assembling multiple separate heat exchanger components and their associated ducting systems.
4Device complexity
If common cooling sources are used for display panel and electronics, then component count is reduced, but thermal management effectiveness decreases
Solution Approach 1:
The patent segments the cooling function by providing separate cooling paths: one for the display panel through the heat exchanger, and another for the electronics control assembly through its own cooling system. This segmentation ensures that each component receives appropriate cooling tailored to its thermal requirements, improving overall thermal management effectiveness.
Solution Approach 2:
The patent applies local quality by providing differentiated cooling solutions for different regions: the display panel receives cooling through the heat exchanger positioned behind it, while the electronics control assembly receives cooling through its dedicated system. Each region receives the specific cooling quality it requires based on its thermal characteristics.
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 design enhances cooling efficiency, reduces spatial requirements, and simplifies manufacturing processes, while minimizing the risk of quality issues and hot spots, thus providing effective thermal management for large electronic displays.
Implementation Method 1
a heat exchanger with separate paths for internal and external air circulation, allowing for efficient heat exchange without mixing the air streams
Data Source
AI summary
An electronic display includes a housing and a display panel having a display surface that is visible through the housing. An inlet is provided to allow external air into the housing and an outlet is provided to allow external air out of the housing. There is a closable vent at the inlet or outlet and a temperature sensor. A controller is arranged to control opening and closing of the vent in response to the output of the temperature sensor.