Electrical Connector Grounding Sheet for Crosstalk Shielding

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Solution Overview

Problem

Existing electrical connectors face challenges in improving ground shielding effectiveness and reducing crosstalk, which affect the reliability of the elastic arms of the ground terminals.

Innovation Solution

The electrical connector design incorporates a first grounding sheet with an intermediate portion, abutting elastic arms, and contact tabs that form double contacts with the elastic arms of ground terminals, enhancing ground shielding and reducing crosstalk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a grounding sheet with single contact is used to connect ground terminals, then the structure is simple, but the ground shielding effect is insufficient and crosstalk is reduced poorly

Engineering Contradiction:

ImprovecrosstalkVSAvoidground shielding effect

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The grounding sheet is segmented into multiple contact portions (first contact portion and second contact portion) that independently contact different ground terminals. This segmentation allows each contact portion to provide dedicated grounding paths, improving overall ground shielding effectiveness while maintaining structural simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The grounding sheet is designed with an intermediate portion that nests between signal terminals, creating a layered structure where the grounding sheet is positioned within the connector assembly. This nesting arrangement optimizes space utilization and enhances ground shielding by placing grounding elements strategically among signal terminals

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If the grounding sheet contacts all ground terminals, then ground shielding is improved, but the structure becomes complex

Engineering Contradiction:

Improveground shielding effectVSAvoidgrounding sheet structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The grounding sheet serves multiple functions simultaneously: it provides electrical connection between ground terminals through contact portions, offers mechanical support through the intermediate portion, and contributes to ground shielding. This multi-functionality reduces the need for separate components, simplifying the overall structure while maintaining effective ground shielding

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The grounding sheet combines the functions of electrical connection and structural support into a single component. The contact portions perform electrical connection while the intermediate portion provides structural support and positioning, merging multiple functions into one integrated element that reduces device complexity

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If elastic arms of ground terminals are used for grounding connection, then grounding flexibility is achieved, but the risk of deformation failure increases

Engineering Contradiction:

Improvegrounding flexibilityVSAvoidelastic arm reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The grounding sheet with its rigid contact portions provides a stable, pre-established grounding path that cushions and protects the elastic arms from excessive stress. By distributing the grounding function between the elastic arms (providing flexibility) and the rigid grounding sheet (providing stability), the design prevents deformation failure of the elastic arms while maintaining grounding flexibility

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS12592523B2Electrical connector with improved ground shielding effect

Publication Date: 2026.03.31 DONGGUAN LUXSHARE TECH CO LTD

AI summary

An electrical connector includes a number of first conductive terminals and a first grounding sheet. Each first conductive terminal includes a first elastic arm. The first conductive terminals include a first signal terminal group, a first ground terminal and a second ground terminal. The first grounding sheet includes a first body portion, a first intermediate portion, a first abutting elastic arm and a second abutting elastic arm. The first intermediate portion includes a first contact tab contacting the first elastic arm of the first ground terminal and a second contact tab abutting against the first elastic arm of the second ground terminal. The first abutting elastic arm includes a first abutting portion abutting against the first elastic arm of the first ground terminal. The second abutting elastic arm includes a second abutting portion abutting against the first elastic arm of the second ground terminal.