Flexible Electromagnetic Shielding Sheet Joint Construction
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Solution Overview
Problem
Existing methods for constructing electromagnetic shielded facilities using thin-film shielding materials face challenges in maintaining high shielding performance due to leakage through joints, and require complex and costly construction techniques.
Innovation Solution
A method for constructing joints between thin flexible sheets of electromagnetic shielding material involves adhering sheets with conductive adhesives or tapes, arranging seams at specific angles, and preprocessing and postprocessing corners to enhance shielding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If welded joint construction is used to connect steel sheets, then shielding performance is improved, but construction complexity and cost increase due to requirement of thick steel sheets (at least 16 gauge)
Solution Approach 1:
The patent applies thin-film shielding materials (thickness of tens of micrometers) instead of thick steel sheets. These thin films are flexible and can be easily handled, allowing for simplified joint construction while maintaining electromagnetic shielding performance through proper joint design and conductive adhesive application.
Solution Approach 2:
The patent changes the thickness parameter of shielding materials from thick steel sheets (at least 16 gauge) to thin-film materials (tens of micrometers). This parameter change enables easier construction and reduces complexity while maintaining shielding effectiveness through optimized joint construction methods.
2Ease of manufacture
If modular joint construction with bolts and nuts is used, then construction simplicity and speed are improved, but shielding performance degrades due to potential cracks and gaps at joints
Solution Approach 1:
The patent introduces conductive adhesive as an intermediary substance between thin-film shielding materials at joints. This conductive adhesive fills gaps and creates continuous conductive paths, preventing electromagnetic wave leakage while maintaining the simplicity of modular construction. The adhesive acts as a mediator that combines mechanical bonding with electrical conductivity.
Solution Approach 2:
The patent uses composite construction combining thin-film shielding materials with conductive adhesive. This composite approach integrates the flexibility and lightness of thin films with the bonding and conductive properties of adhesive, creating a joint structure that maintains both construction simplicity and shielding performance.
3Ease of operation
If general papering method is used to attach thin shielding sheets, then installation simplicity is improved, but shielding performance degrades due to electromagnetic wave leakage through joints
Solution Approach 1:
The patent applies conductive adhesive as an intermediary substance at joints during the papering installation process. This adhesive ensures continuous conductive paths across joints, preventing electromagnetic wave leakage while maintaining the simplicity of the papering installation method. The adhesive transforms the joint from a potential leakage point into a continuous shielding barrier.
4Weight of moving object
If thin-film shielding materials are used to reduce weight and cost, then construction cost and weight are reduced, but joint construction difficulty increases due to material flexibility
Solution Approach 1:
The patent utilizes the flexibility of thin-film shielding materials to simplify joint construction. These thin films can be easily bent, folded, and conform to joint geometries, allowing for simple installation while maintaining shielding performance. The flexibility enables the materials to adapt to various joint configurations without requiring complex rigid connection structures.
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 method improves shielding performance by minimizing electromagnetic wave leakage through joints, simplifies the construction process, and reduces the number of additional components required, resulting in a lightweight and cost-effective electromagnetic shielded facility.
Implementation Method 1
a conductive adhesive or a conductive double-sided adhesive tape may be applied to the first side of each of the first sheets of shielding material and the second sheets of shielding material
Data Source
AI summary
Disclosed herein is a method for constructing a joint between thin flexible sheets of electromagnetic shielding material. The method includes adhering first sides of multiple first sheets of shielding material to a wall and adhering first sides of multiple second sheets of shielding material to second sides of the multiple first sheets of shielding material. A conductive adhesive or a conductive double-sided adhesive tape may be applied to the first side of each of the first sheets of shielding material and the second sheets of shielding material, the first sheets of shielding material may be arranged to abut each other along at least one first seam, and the second sheets of shielding material may be arranged to abut each other along at least one second seam.