LED Display Sealing Assembly for Floating Waterproof Wiring
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Solution Overview
Problem
Existing outdoor LED display screens face issues with water resistance, as rainwater can easily enter the power box through openings, leading to short circuits and device failure.
Innovation Solution
The LED display screen incorporates a sealing assembly with a sealing frame, first and second elastic seal rings, and a limiting structure to create a floating gap between the sealing frame and the power box, ensuring effective sealing and accommodating position offsets between the display module and the power box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal ring is disposed between the display module and the power box to seal the joint, then water resistance is improved, but the seal ring still has a risk of water leakage due to failure when position offset occurs
Solution Approach 1:
The sealing structure is divided into multiple independent components: a sealing frame that seals the joint between display modules, and separate first and second elastic seal rings that seal different interfaces. This segmentation allows each component to perform its sealing function independently, improving overall water resistance while distributing the sealing load to prevent single-point failure
Solution Approach 2:
The patent introduces a floating gap between the power box and the sealing frame, allowing the sealing frame to move dynamically to accommodate position offsets between display modules and the power box. The elastic seal rings provide flexible sealing that adapts to dimensional changes and misalignments, transforming a rigid sealing structure into a dynamic one that maintains sealing effectiveness under varying conditions
2Reliability
If the sealing frame is fixed to the power box to seal the floating gap, then sealing effectiveness is improved, but position offsets between the display module and the power box cause sealing failure
Solution Approach 1:
The patent creates a dynamic sealing system by introducing a floating gap between the power box and the sealing frame, allowing the sealing frame to move and adapt to position offsets. The elastic seal rings provide flexible sealing that accommodates dimensional changes, enabling the structure to maintain sealing effectiveness while adapting to misalignments between components
Solution Approach 2:
The patent changes the physical state of the sealing interface from fixed to floating by introducing a gap, and uses elastic materials that can deform to accommodate position offsets. The elastic seal rings change their compression state dynamically to maintain sealing pressure despite variations in the distance between the power box and sealing frame
3Object-affected harmful factors
If rainwater enters through the opening of the power box for wiring, then short circuit occurs causing device failure, but adding more sealing components increases structural complexity
Solution Approach 1:
The sealing function is segmented across multiple components: the sealing frame seals the joint between display modules, the first elastic seal ring seals the interface between the display module and sealing frame, and the second elastic seal ring seals the floating gap between the power box and sealing frame. This segmentation distributes the water protection function across multiple specialized components rather than using a single complex seal
Solution Approach 2:
The sealing frame acts as an intermediary component between the display module and the power box, providing a floating sealing interface. The elastic seal rings serve as mediators that create flexible sealing barriers at critical interfaces, preventing water ingress through the wiring opening while accommodating the structural relationships between components
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 solution prevents water ingress into the power box, reduces the risk of short circuits, and extends the service life of the LED display screen by ensuring reliable sealing and even compression deformation of the seal rings.
Implementation Method 1
a first elastic seal ring, which is disposed on the sealing frame and surrounds the second wiring hole, and the display module is connected with the sealing frame and is in butt fit with the first elastic seal ring so as to seal a joint of the display module and the sealing frame
Implementation Method 2
a second elastic seal ring, an outer side of the second elastic seal ring is connected with the power box, an inner side of the second elastic seal ring is connected with the sealing frame and surrounds the second wiring hole so as to seal the floating gap
Data Source
AI summary
The disclosure provides a Light Emitting Diode (LED) display screen, which includes a box body, a power box, a display module and a sealing assembly. The sealing assembly includes: a sealing frame, which is disposed at the first wiring hole and provided with a second wiring hole for avoiding the connecting wire, and a floating gap is formed between the sealing frame and the power box; a first elastic seal ring, which is disposed on the sealing frame and surrounds the second wiring hole, and the display module is connected with the sealing frame and is in butt fit with the first elastic seal ring; and a second elastic seal ring, an outer side of the second elastic seal ring is connected with the power box, an inner side of the second elastic seal ring is connected with the sealing frame and surrounds the second wiring hole.