Electrical Connector Rigid Grounding Section EMI Shielding
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Solution Overview
Problem
Existing electrical connectors with metal shells provide inadequate EMI shielding due to poor performance of first and second grounding arms, and lack space for additional grounding members, necessitating a design that enhances EMI shielding while maintaining a compact size.
Innovation Solution
The electrical connector incorporates a metal shell with latching arms that include a rigid grounding section and a grounding arm, allowing for improved EMI shielding by contacting the mating shell, while maintaining a compact size through optimized design of latching and grounding functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If first and second grounding arms are added for EMI shielding, then EMI shielding capability is improved, but available space is consumed and no more grounding members can be added
Solution Approach 1:
The patent combines the grounding function with the latching arm structure. The latching arm is formed as an integrated structure that includes both the latching portion for mechanical retention and the grounding portion for EMI shielding, eliminating the need for separate grounding arms and enabling additional grounding members within the same space
Solution Approach 2:
The latching arm is designed to perform multiple functions simultaneously: mechanical latching/retention of the mating connector and EMI shielding through its grounding portion. This multi-functional design maximizes the utility of each structural element and improves EMI shielding without consuming additional space
2Object-affected harmful factors
If separate grounding arms are added for EMI shielding, then EMI shielding is improved, but device complexity increases
Solution Approach 1:
The grounding portion is integrated into the latching arm structure as a unified component rather than separate parts. This reduces the total number of components and simplifies the overall structure while maintaining effective EMI shielding capability
Solution Approach 2:
The latching arm structure serves dual purposes: mechanical retention through the latching portion and EMI shielding through the grounding portion. This multi-functionality reduces structural complexity by eliminating redundant components
Data Source
AI summary
An electrical connector includes a metal shell defining several walls and a mating cavity formed by the walls commonly, an insulative housing shielded by the metal shell, and a plurality of contacts set in the housing. The housing has a base portion and mating tongue disposed in the mating cavity, the plurality of contacts provide contacting portions exposed upon a mating face of the mating tongue. A first wall of the metal shell parallel to the mating face defines a latching arm extending into the mating cavity, and the latching arm defines a latching portion and a rigid grounding section for improving EMI shielding.