3D Conductive Gasket for EMI Leakage Reduction
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Solution Overview
Problem
Cable assemblies with complex geometries face challenges in effectively controlling electromagnetic interference (EMI) leakage due to the difficulty in positioning conventional conductive gaskets along intricate seams.
Innovation Solution
A 3D conductive gasket frame is designed to match the complex path of the housing seam, providing effective EMI control by being stamped or cut from conductive material and positioned along the seam to reduce leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conductive gaskets are used along housing seams, then EMI leakage is controlled, but positioning and installation become difficult when seams have complex geometries
Solution Approach 1:
The patent transitions from conventional flat, planar gaskets to a three-dimensional gasket structure that conforms to the complex spatial geometry of housing seams. The 3D gasket includes vertical walls and horizontal surfaces that match the multi-dimensional path of seams, enabling effective EMI control along intricate geometries that flat gaskets cannot accommodate.
Solution Approach 2:
The patent changes the geometric parameters of the gasket from two-dimensional to three-dimensional form factors. The 3D gasket features varying heights, angles, and surface orientations that adapt to complex seam geometries, transforming the gasket's physical configuration to match the spatial requirements of the housing assembly.
2Reliability
If custom-shaped conductive gaskets are created to match complex seam paths, then EMI control improves, but manufacturing complexity increases
Solution Approach 1:
The 3D gasket is constructed from multiple discrete components including vertical walls, horizontal surfaces, and connecting features that can be manufactured separately and then assembled. This segmentation allows each component to be produced using standard manufacturing processes, reducing overall manufacturing complexity while achieving the required complex geometry for EMI control.
Solution Approach 2:
The 3D gasket structure incorporates nested or layered components where vertical walls may contain embedded conductive elements, or where multiple gasket sections fit together in a nested arrangement. This nesting approach enables complex geometries to be built from simpler constituent parts, facilitating manufacturing while maintaining the required spatial configuration for EMI shielding.
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 3D gasket frame effectively reduces EMI leakage through complex housing seams, enhancing the performance of cable assemblies by providing a discrete structure that matches the seam's path, making it easier to position and secure.
Implementation Method 1
a conductive gasket having a three-dimensional (3D) gasket frame that substantially matches a three-dimensional (3D) path of the housing seam... positioned along the housing seam to reduce electromagnetic interference (EMI) leakage through the housing seam
Data Source
AI summary
Electrical connector assembly includes a housing assembly having first and second housing shells that are coupled to each other along a housing seam and define an interior cavity therebetween. The housing seam extends along a three-dimensional (3D) path. The electrical connector assembly also includes an electrical connector having a back end that is disposed within the interior cavity and a front end that is configured to mate with an external mating connector. The electrical connector also including a conductive gasket having a 3D gasket frame that substantially matches the 3D path of the housing seam. The 3D gasket frame being a discrete structure that is positioned along the housing seam to reduce electromagnetic interference (EMI) leakage through the housing seam.