Multi-Groove Sealing Ring for Waterproof LED Display Screens
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Solution Overview
Problem
LED display screens suffer from poor waterproofing, allowing moisture and dust to enter and potentially causing short circuits, especially when installed outdoors in rainy or snowy conditions.
Innovation Solution
A sealing ring with a ring body featuring a ring groove, convex rings, and a flange, along with multiple transversely connected ring grooves, is designed to prevent air and water infiltration by increasing pressure and providing a multi-layer sealing effect. The ring is integrated into the LED display screen's structure between modules and power boxes to enhance sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple sealing structure is used, then the device complexity is reduced, but the waterproofing performance deteriorates
Solution Approach 1:
The sealing ring is divided into multiple functional segments: a ring groove for structural support, first convex rings on the bottom wall for primary sealing, second convex rings on the flange for secondary sealing, and a flange for structural reinforcement. This segmentation allows each component to perform its specific function efficiently, achieving high waterproofing performance without excessive overall complexity.
Solution Approach 2:
The sealing structure transitions from a simple single-layer seal to a multi-dimensional sealing system with convex rings extending in multiple directions (radially and axially). The first convex rings extend radially from the bottom wall, while the second convex rings extend radially from the flange, creating a three-dimensional sealing network that effectively blocks water infiltration paths.
2Reliability
If multiple convex rings are added to increase sealing pressure, then the waterproofing performance is improved, but the manufacturing complexity increases
Solution Approach 1:
Multiple sealing functions are merged into a single integrated sealing ring component. The ring groove, first convex rings, second convex rings, and flange are all formed as one piece through a single molding process. This merging approach increases sealing pressure through the multi-convex-ring design while avoiding the manufacturing complexity of assembling multiple separate components.
Solution Approach 2:
The sealing pressure is enhanced by changing the geometric parameters of the convex rings, specifically their radial extension distance and cross-sectional shape. The first convex rings have a radial extension distance of 3-8mm and the second convex rings have a radial extension distance of 2-5mm. These parameter optimizations provide increased sealing pressure without requiring additional complex manufacturing steps.
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 sealing ring effectively prevents air and water from entering the LED display screen, reducing the risk of moisture-related damage and short circuits, thereby improving the waterproofing performance and extending the service life of the LED display screen.
Implementation Method 1
The pressure between the first convex ring and the sealed body is increased, so that the first convex ring is squeezed to a great extent, and the infiltration of air and water can be effectively prevented
Data Source
AI summary
Provided is a sealing ring, including a ring body, wherein the ring body includes a ring groove, a first convex ring is provided on each of the upper and lower surfaces of the bottom wall of the ring groove, and the first convex ring is a closed ring with the same extension direction as the ring groove. The side wall of the ring groove reduces the impact force of water, pressure between the first convex ring and sealed body is increased, and the sealing performance of the first convex ring is improved. Further provided is An LED display screen, including a module, box, power box and a plurality of sealing rings, wherein a first sealing ring is disposed between the power box and box, a second sealing ring is disposed between the box and module; the two rings have good sealing performance, which improves sealing performance of the LED screen.