EMI Gasket Latch Interface for Connector Assembly
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Solution Overview
Problem
Existing electrical connector assemblies with spring latches allow leakage of electromagnetic interference (EMI) emissions due to gaps between the latch and the panel.
Innovation Solution
An EMI gasket is mounted on the cage member, featuring a latch interface that engages the latch and is electrically connected to the cage member, closing the gap between the latch and the panel to reduce EMI emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a spring latch is used to secure the pluggable electrical component, then the component is firmly latched to the cage, but a gap exists between the latch and the panel that allows EMI emissions to leak
Solution Approach 1:
An EMI gasket is introduced as an intermediary component between the latch and the panel. The gasket includes a latch interface that engages with the spring latch, providing an electrical connection path that grounds the latch to the panel. This mediator closes the EMI gap without interfering with the mechanical latching function, thereby resolving the contradiction between secure latching and EMI containment.
2Reliability
If the cage is held within the panel using springs, then the cage is securely mounted, but gaps remain around the latch area that compromise EMI shielding
Solution Approach 1:
The EMI gasket applies local quality enhancement by specifically addressing the latch area where EMI leakage occurs. Rather than requiring a complete redesign of the mounting system, the gasket provides localized EMI shielding at the critical gap region between the latch and panel, maintaining overall mounting reliability while targeting the specific problem area.
3Object-affected harmful factors
If additional EMI shielding components are added to close the gap, then EMI leakage is reduced, but the device complexity increases
Solution Approach 1:
The EMI gasket is designed to perform multiple functions: it provides EMI shielding, maintains electrical ground connections, and accommodates the mechanical movement of the spring latch. By combining these functions into a single component, the design reduces overall complexity compared to using separate elements for each function, while still achieving effective EMI leakage reduction.
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 EMI gasket effectively contains electromagnetic interference emissions by providing additional contact points that ground the cage member to the panel, enhancing the secure mounting and reducing leakage.
Implementation Method 1
The EMI gasket includes a latch interface that engages the latch such that the latch interface is electrically connected to the latch
Implementation Method 2
The latch interface includes a spring
Data Source
AI summary
An electrical connector assembly is provided. The electrical connector assembly includes a cage member configured for mounting in an opening in a panel. The cage member has a compartment for receiving a pluggable electrical component therein. The cage member includes a latch for cooperating with a latch element of the pluggable electrical component. An EMI gasket is mounted on the cage member such that the EMI gasket is electrically connected to the cage member. The EMI gasket is configured to engage the panel when the cage member is mounted in the opening in the panel. The EMI gasket includes a latch interface that engages the latch such that the latch interface is electrically connected to the latch.