Cable Connector Ground Shield Integration for Signal Interference

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Solution Overview

Problem

Existing cable connectors face challenges in reducing interference during data transmission and improving soldering efficiency as the density of conductive terminals increases, necessitating enhanced shielding and soldering quality.

Innovation Solution

A cable connector design featuring a ground shield connected to both the shielding layers and shell, along with a shielding shell, improves shielding performance and simplifies soldering by eliminating the need for individual grounding terminals, thereby reducing signal interference and enhancing soldering reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional shielding structures without ground shield are used, then device complexity is reduced, but shielding effectiveness deteriorates due to insufficient grounding connection

Engineering Contradiction:
Improveshielding effectivenessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ground shield integrates multiple grounding functions into a single unified structure that connects to both shielding layers and the shell, combining what were previously separate grounding connections into one component. This merging approach improves shielding effectiveness while avoiding the complexity of multiple separate grounding structures.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ground shield serves multiple functions simultaneously: it provides grounding connection for the first shielding layer, grounding connection for the second shielding layer, and structural support within the connector housing. This multi-functionality reduces the need for separate components, improving shielding while managing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If individual grounding terminals are used for each shielding layer, then shielding effectiveness is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveshielding effectivenessVSAvoidsoldering efficiency
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The ground shield combines multiple grounding terminal functions into a single integrated component that can be connected to both shielding layers simultaneously. This eliminates the need for separate grounding terminals for each layer, improving shielding effectiveness while simplifying the soldering process and manufacturing operations.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If shielding structure with multiple separate grounding connections is used, then shielding effectiveness is improved, but device complexity increases

Engineering Contradiction:
Improveshielding effectivenessVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ground shield merges multiple separate grounding connections into a single unified structure that provides grounding for both shielding layers and connects to the shell. This consolidation maintains comprehensive shielding effectiveness while reducing the total number of discrete components and simplifying the overall device architecture.

Inventive Principle:
Principle #5Merging (Combining)

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 significantly enhances shielding effectiveness, reduces signal interference, and simplifies the soldering process, improving the reliability and efficiency of high-frequency data transmission while maintaining compatibility with various cable types.

Implementation Method 1

a ground shield, the ground shield being mounted to the cables, the ground shield being connected with the shielding layers of the cables, and the ground shield being connected with the shielding shell

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS11705675B2Cable connector with improved shielding performance
Publication Date: 2023.07.18 LUXSHARE PRECISION IND SHENZHEN
  • US11705675B2 patent drawing
  • US11705675B2 patent drawing
  • US11705675B2 patent drawing

AI summary

A cable connector includes a number of cables and an electrical connector. Each cable includes a core wire, an insulating layer wrapped on the core wire and a shielding layer wrapped on the insulating layer. The electrical connector includes an insulating body, a number of conductive terminals and a shielding shell. Each conductive terminal includes a contact portion for mating with a mating connector and a tail portion connected with the core wire. The cable connector further includes a ground shield mounted to the cables. The ground shield is connected with the shielding layers of the cables, and the ground shield is connected with the shielding shell. Compared with the prior art, the present disclosure improves the shielding performance of the cable connector by providing connecting the ground shield, the shielding layers and the shielding shell together.