Electrical Connector Shielding Member for EMI Reduction

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Solution Overview

Problem

Existing electrical connectors face increasing challenges in preventing signal interference between conductive terminals during high-frequency transmission, necessitating an improved design for enhanced electromagnetic shielding.

Innovation Solution

An electrical connector design featuring an elongated insulative shell with a terminal module and a shielding member, where the shielding member is connected to first and second shielding plates, positioned between the modules to effectively reduce electromagnetic interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a shielding plate is disposed between terminal modules and spaced apart from conductive terminals by an insulative block, then electromagnetic interference of conductive terminals is prevented, but signal interference between conductive terminals becomes increasingly serious with high-frequency transmission

Engineering Contradiction:
Improveelectromagnetic interference preventionVSAvoidsignal transmission quality
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The shielding structure is divided into multiple segments: a shielding member with a body portion located between terminal modules, and first/second shielding plates respectively attached to first/second modules. This segmented approach creates multiple shielding zones that work together to block electromagnetic interference while maintaining proper signal transmission between terminals.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The shielding member acts as an intermediary component between the first and second terminal modules. The body portion of the shielding member is positioned between the modules and connected to both shielding plates, serving as a mediator that blocks electromagnetic interference while allowing signal transmission through the connector.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a complex shielding structure with multiple components is used to improve electromagnetic shielding, then anti-EMI performance is enhanced, but device complexity increases

Engineering Contradiction:
Improveelectromagnetic shielding performanceVSAvoidshielding structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The shielding member integrates multiple functions into a single component: it has a body portion that blocks interference between modules, and extends to connect with first and second shielding plates. This merging of functions reduces the number of separate components needed while maintaining effective electromagnetic shielding across different sections of the connector.

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 provides a stable structure with improved electromagnetic shielding, reducing signal interference and enhancing electrical performance by allowing the shielding member to engage with the mating connector for better grounding and static electricity elimination.

Implementation Method 1

a shielding member (23) located between the first module (21) and the second module (22)... the shielding member is connected together with the first shielding plate (24) and the second shielding plate (25)

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS9735512B2Electrical connector having good anti-EMI performance
Publication Date: 2017.08.15 FOXCONN INTERCONNECT TECHNOLOGY LTD
  • US9735512B2 patent drawing
  • US9735512B2 patent drawing
  • US9735512B2 patent drawing

AI summary

An electrical connector includes an elongated insultive shell and a terminal module retained in the insultive shell. The terminal module defines a first module, a second module separated from the first module in a vertical direction and a shielding member located between the first module and the second module. The terminal module defines a first shielding plate and a second shielding plate assembled to the corresponding first and second modules respectively, the shielding member is connected together with the first shielding plate and the second shielding plate.