Electrical Connector Grounding Member Wing Portions Pre-Pressure
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Solution Overview
Problem
Existing electrical connectors face increasing signal interference issues as high-frequency transmission demands grow, necessitating an improved anti-EMI solution.
Innovation Solution
An electrical connector design featuring an insulative housing with conductive terminals, a metal shell, and grounding members with contacting arms and wing portions that provide pre-pressure and elastic deformation to enhance electromagnetic shielding, integrating with a metal shell and magnetic elements for improved masking effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shielding member is disposed between conductive terminals and spaced from insulating blocks, then electromagnetic interference prevention is improved, but signal interference between terminals worsens at high frequencies
Solution Approach 1:
The grounding member is segmented into multiple contacting arms, each independently contacting the insulative housing at different positions. This segmentation allows each contacting arm to provide localized grounding and pre-pressure, improving overall EMI shielding effectiveness without causing signal interference between terminals.
Solution Approach 2:
The contacting arms are designed to elastically deform and contact the insulative housing before the connector is fully assembled or during insertion. This preliminary contact establishes stable electrical connection and pre-pressure on the shielding member in advance, ensuring EMI protection is activated before signal transmission begins.
2Object-affected harmful factors
If grounding members with contacting arms are assembled on the outside of insulative housing, then anti-EMI performance is improved, but device complexity increases
Solution Approach 1:
The grounding member integrates multiple functions into a single component: it provides electrical grounding through contacting arms, applies pre-pressure to the shielding member via elastic deformation, and maintains structural stability through the body portion. This merging reduces the number of separate components needed while achieving improved EMI protection.
Solution Approach 2:
The contacting arms utilize their own elastic deformation capability to automatically establish contact with the insulative housing and apply appropriate pre-pressure to the shielding member. This self-service mechanism eliminates the need for additional fastening components or adjustment mechanisms, simplifying the overall structure.
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 design effectively reduces electromagnetic interference by ensuring stable contact and pre-pressure, enhancing the anti-EMI performance and electrical performance of the connector.
Implementation Method 1
the wing portions are abutted against the bottom surfaces of the receiving slots to form a pre-pressure to the contacting arms
Data Source
AI summary
An electrical connector includes an insulative housing, a plurality of conductive terminals retained in the insulative housing and two grounding members. The insulative housing defines an upper sidewall, a lower sidewall and two end walls connected to both ends of the upper and lower sidewalls to form a mating cavity. Each grounding member defines a body portion fixed to the insulative housing and a plurality of contacting arms extending forward from the body portion. Each contacting arm defines a pair of wing portions located on both sides thereof, and the upper and lower sidewalls define a plurality of channels and a plurality of receiving slots. The wing portions are abutted against the bottom surfaces of the receiving slots to form a pre-pressure to the contacting arms.