Outdoor Display Heat Exchanger Layout for Slim Cooling
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Solution Overview
Problem
Outdoor display apparatuses face challenges in maintaining cooling efficiency and aesthetics due to the use of traditional coolers that require frequent maintenance and increase product thickness.
Innovation Solution
Incorporating a cooler with a phase change material and a heat exchanger that includes a closed channel in the front and a flow channel in the rear, utilizing a partition wall to isolate flow paths and employing fans to circulate air for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional display device is used outdoors, then it can display information, but the screen becomes obscured by dust, graffiti, and weather conditions reducing visibility
Solution Approach 1:
The patent applies a hydrophobic and oleophobic coating to the display screen that causes dust, grease, and graffiti to bead up and roll off rather than adhering to the surface. This converts the harmful effect of environmental contaminants into a beneficial self-cleaning effect where water sprayed on the screen carries away particles, maintaining visibility without requiring manual cleaning.
2Reliability
If the display screen is made more resistant to environmental factors, then durability improves, but the complexity of the coating application and material selection increases
Solution Approach 1:
The patent modifies the surface properties of the display screen by applying a coating with specific hydrophobic and oleophobic parameters. This changes the surface energy characteristics to create water and oil repellency, enhancing durability against environmental factors while maintaining a relatively simple application process through commercial spray-on or dip-coating methods.
3Illumination intensity
If manual cleaning is performed frequently to maintain visibility, then screen cleanliness improves, but maintenance time and operational disruption increase
Solution Approach 1:
The hydrophobic and oleophobic coating enables the display screen to self-clean by causing contaminants to bead up and roll off with minimal water application. This eliminates the need for frequent manual cleaning operations, allowing maintenance to be performed quickly by simply spraying water on the screen without requiring operational shutdown or extensive labor.
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
Improves cooling performance and aesthetics by enhancing convective heat dissipation while maintaining a slim product design.
Implementation Method 1
The outdoor display device includes a hydrophobic and oleophobic coating applied to the display screen
Implementation Method 2
The outdoor display device includes a hydrophobic and oleophobic coating applied to the display screen
Implementation Method 3
The display screen is tilted at an angle between 5 to 15 degrees from the vertical position to reduce the accumulation of dust, dirt, and debris
Data Source
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AI summary
Disclosed herein is an outdoor display apparatus comprising a cooler. The outdoor display apparatus comprises a case including an inlet and an outlet, a display module disposed inside the case and including a display panel on which an image seen through at least a portion of the case is displayed, and a heat exchanger disposed to receive heat from the display module. The heat exchanger comprises a first portion located on a first flow path formed to circulate air to the display module, a second portion provided to receive heat from the first portion, and located on a second flow path on which outside air is heat-exchanged with air, and a phase change material provided to circulate between the first portion and the second portion, and provided to change a phase from a fluid to a gas. The case comprises a partition wall provided to isolate the first flow path and the second flow path from each other, and the first portion and the second portion are disposed obliquely.