Electrical Connector Ground Shield Segmentation
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Solution Overview
Problem
Existing electrical connectors lack an improved grounding plate structure that effectively integrates grounding tails with signal contacts for enhanced electrical connectivity and impedance adjustment.
Innovation Solution
The electrical connector features a front housing with a contact module comprising dielectric holders, signal contacts with mating and mounting portions, and a ground shield with mating sections and grounding tails, where the ground shield includes a base plate with connecting legs that link to the grounding tails, allowing for improved electrical connection and impedance adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional grounding plate structure is used, then the manufacturing process is simple, but the electrical connectivity and impedance adjustment capability are insufficient
Solution Approach 1:
The grounding plate is segmented into multiple independent grounding tails that can be separately embedded and aligned with signal contacts. Each grounding tail functions as an independent grounding element, allowing for improved electrical connectivity and impedance control while maintaining manufacturing feasibility through modular assembly.
Solution Approach 2:
The grounding structure transitions from a traditional planar configuration to a three-dimensional arrangement with grounding tails extending in multiple directions. The tails are aligned vertically with signal contacts and can be positioned at different depths, enabling enhanced electrical connectivity and impedance adjustment capability through spatial optimization.
2Manufacturing precision
If grounding tails are added to the grounding plate, then impedance adjustment capability is improved, but the manufacturing complexity increases
Solution Approach 1:
The grounding tails are pre-formed and positioned on the grounding plate before final assembly with the signal contacts. This preliminary arrangement allows for precise impedance control to be built into the grounding structure itself, while the modular design enables straightforward integration during manufacturing without requiring complex post-assembly adjustments.
3Reliability
If multiple grounding tails are embedded in the holder, then grounding capabilities are enhanced, but the alignment precision requirements increase
Solution Approach 1:
The grounding tails are nested within or alongside the signal contact structure, with each tail positioned to align with its corresponding signal contact. This nested arrangement ensures that the grounding tails are automatically aligned during the assembly process, reducing the need for separate alignment operations while enhancing grounding capabilities through multiple contact points.
Data Source
AI summary
An electrical connector (1000) includes a number of frames (10). The frame includes a dielectric holder (3) holding a number of signal contacts (23), and a ground shield (2) including a base plate (20) coupled to the dielectric holder. The ground shield includes a number of mating sections (221) extending forwardly from a front edge of the base plate and parallel to a mating portion (231) of the signal contact. A number of grounding tails (214) are separately mounted into the bottom side of the holder and aligned to the mounting portion of the signal contacts. The ground shield further includes a front tail (211) extending downwardly along the base plate, and a number of connecting legs (213) each extending sideward adjacent a bottom edge of the base plate into the holder for electrically connecting with the grounding tail.