Bracket Segmentation for Electromagnetic Shielding Shape Retention
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Solution Overview
Problem
Existing electromagnetic shielding devices face challenges in maintaining the shape of metal cloth, leading to reduced noise absorption performance due to insufficient joining strength between metal cloth and brackets.
Innovation Solution
The electromagnetic shielding device incorporates a pair of brackets with specific configurations, including long and short portions, bending portions, and couplers, to securely attach the metal sheet, ensuring stable joining and maintaining the shape of the metal cloth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the metal cloth is joined to two long portions included in the brackets by crimping or welding, then the joining process is simple, but the joining strength is insufficient
Solution Approach 1:
The bracket is divided into multiple portions: two long portions and two short portions. This segmentation allows the bracket to distribute the joining load across multiple attachment points (four portions total) instead of relying on just two long portions, thereby increasing overall joining strength while maintaining manufacturing simplicity through standardized crimping or welding processes at each segment.
Solution Approach 2:
The short portions are positioned asymmetrically relative to the long portions, with specific spacing relationships defined between them. This asymmetric arrangement optimizes the structural distribution of forces and enhances the overall joining strength by creating a more balanced load path through the bracket structure, while still allowing for simple manufacturing processes.
2Device complexity
If only two long portions are used in the bracket, then the device complexity is reduced, but the shape maintenance of the metal sheet deteriorates
Solution Approach 1:
The bracket is segmented into four portions (two long and two short) that annularly retain the metal sheet. This segmentation provides multiple support points around the perimeter of the metal sheet, distributing the retention forces evenly and preventing localized deformation, thereby maintaining the overall shape of the metal sheet while keeping the bracket structure relatively simple.
Solution Approach 2:
The four portions of the bracket are connected to form a continuous annular structure that collectively retains the metal sheet. By merging these portions into an integrated bracket assembly, the device maintains structural simplicity while achieving effective shape maintenance through the combined retention action of all four portions.
3Ease of manufacture
If the two long portions are used for joining, then the manufacturing process is simplified, but the noise absorption performance is reduced
Solution Approach 1:
The bracket is segmented into four portions that annularly retain the metal sheet, ensuring the metal sheet maintains its intended shape and position. This proper shape maintenance is critical for the metal sheet's noise absorption function, as deformation would compromise its acoustic performance. The segmentation allows for simple manufacturing while preserving the functional integrity needed for noise absorption.
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 configuration enhances the attachment of the brackets to the metal sheet, preventing shape loss and maintaining noise absorption performance, thereby effectively shielding electromagnetic noise.
Implementation Method 1
an electromagnetic shielding device that shields noise electromagnetic waves
Data Source
AI summary
An electromagnetic shielding device, where the electromagnetic shielding device includes a metal sheet; and a pair of brackets that are formed of a conductive material, and that annularly retain a first outer edge out of four outer edges of the metal sheet, and a second outer edge located opposite to the first outer edge.