Homogeneous EMI Vent Panel via Selective Laser Sintering
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Solution Overview
Problem
Conventional EMI shielded vent panels require separate frame and media components, leading to issues with foreign object debris, complex assembly, and compromised EMI shielding effectiveness due to discontinuities in electrical continuity.
Innovation Solution
A homogeneous EMI shielded vent panel fabricated using selective laser sintering (SLS) technology, integrating an electrically conductive frame and porous honeycomb media as a single, complex structure, eliminating the need for solders, adhesives, and mechanical attachments, while maintaining reliable EMI shielding and ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate frame and media components are used in conventional EMI vent panels, then assembly and installation are simplified, but foreign object debris is generated during cutting and installation, compromising reliability
Solution Approach 1:
The patent merges the frame and media components into a single homogeneous EMI vent panel structure. The conductive frame and porous media are integrated as one piece, eliminating the need for separate components that would require cutting and assembly, thereby preventing foreign object debris generation while maintaining manufacturing feasibility through techniques like selective laser sintering
2Ease of manufacture
If separate frame and media components are used in conventional EMI vent panels, then manufacturing flexibility is improved, but electrical continuity is compromised due to discontinuities at attachment points
Solution Approach 1:
The frame and media are combined into a homogeneous single-piece structure where the media is integrally formed within the frame boundaries. This integration eliminates discontinuities at attachment points, ensuring continuous electrical conductivity across the entire vent panel surface, thereby maintaining EMI shielding effectiveness while achieving manufacturing flexibility through additive processes
3Ease of operation
If attachment devices such as soldering, plating, or mechanical attachments are used, then separate vent panel elements can be assembled, but corrosion resistance and overall performance are compromised
Solution Approach 1:
The vent panel is manufactured as a single homogeneous piece using processes like selective laser sintering, eliminating the need for attachment devices such as soldering, plating, or mechanical fasteners. This integration removes potential failure points and corrosion risks associated with joints and attachments, while the entire structure can be manufactured in one process step, maintaining ease of installation
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 solution provides a cost-effective, structurally integral, and reliable EMI shielding vent panel with improved airflow and reduced risk of foreign object debris, suitable for high-frequency applications in electronic enclosures.
Implementation Method 1
Vent structures such as those to which the present invention is applicable can be formed as a single integrated and homogenous part using a selective laser sintering (SLS) technique
Data Source
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AI summary
A homogeneous EMI shielded vent panel has an interior porous section and an exterior frame for attachment to an opening of an electronic enclosure. The vent panel can be fabricated using selective laser sintering technology to avoid the use of multiple parts and components which can generate harmful foreign object debris during fabrication and mounting of the vent panel.