Inner-Shield Connector Layout for High-Density Noise Isolation

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Solution Overview

Problem

Existing connectors suffer from noise propagation and radiation issues due to the lack of effective shielding and resonance reduction mechanisms.

Innovation Solution

The connector design includes plural terminals, a housing, and an inner shield with a base and extension, where the terminals are arranged on both sides of the inner shield, and the housing includes a shield holder to accurately position the extension, thereby reducing noise propagation and improving alignment accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If terminals are arranged closely to increase connection density, then productivity and compactness are improved, but noise propagation between terminals increases

Engineering Contradiction:

Improveconnection densityVSAvoidnoise propagation

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

An inner shield is introduced as an intermediary structure positioned between adjacent terminals. The inner shield includes a base portion and an extension portion that creates shielding partitions, effectively blocking electromagnetic noise propagation between closely arranged terminals while maintaining high connection density

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The inner shield is segmented into a base portion and an extension portion, creating multiple shielding partitions that divide the space between terminals. This segmentation allows effective noise isolation between adjacent terminals while maintaining compact overall structure

Inventive Principle:

Principle #1Segmentation

2Object-affected harmful factors

If shielding structures are added to reduce noise, then noise protection is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvenoise protectionVSAvoidshielding structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The inner shield combines the base portion and extension portion into a single integrated component that performs both shielding and positioning functions. The shield is merged with the housing through the shield holder, reducing the number of separate parts while maintaining effective noise protection

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The inner shield serves multiple functions simultaneously: it provides electromagnetic shielding between terminals, acts as a positioning reference for terminal alignment, and works with the shield holder to maintain structural integrity. This multi-functionality reduces overall device complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If shield holder is added to position the extension, then alignment accuracy is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvealignment accuracyVSAvoidmanufacturing complexity

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The shield holder is designed with pre-formed positioning structures that guide the inner shield extension into the correct position during assembly. This preliminary positioning action ensures high alignment accuracy without requiring complex post-assembly adjustments or specialized manufacturing processes

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250202167A1Electrical connector with shielding between low and high frequency terminals and electrical connector device using the same

Publication Date: 2025.06.19 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

A connector includes plural terminals, a housing holding the terminals, and an inner shield. The connector is configured to be connected to a mating connector by moving toward the mating connector in a first direction relatively with respect to the mating connector. The terminals include two terminals arranged on both sides of the inner shield in a second direction perpendicular to the first direction. The inner shield includes a base extending in a third direction perpendicular to the first direction and the second direction, and an extension protruding from the base. The housing includes a shield holder holding the extension. This connector reduces noise propagation between the terminals.