Shielded Board Connector Structure for High-Frequency Crosstalk

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Solution Overview

Problem

Existing electrical connectors lack sufficient design for achieving good transmission characteristics for high-frequency signals, particularly in terms of noise shielding and impedance matching.

Innovation Solution

A connector design featuring a first and second shield member, with a contacting portion extending from the second shield member to contact the first shield member, providing a shield structure that reduces crosstalk and improves noise shielding by shortening circuit length and enhancing conductivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a shield structure is added to improve noise shielding and reduce crosstalk for high-frequency signals, then transmission characteristics are improved, but device complexity increases

Engineering Contradiction:
Improvetransmission characteristicsVSAvoidshield structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The second shield member is integrated with the insulator as a single unit, where the insulator serves dual functions as both electrical insulation and structural support for the shield. This merging reduces the number of separate components and simplifies assembly while maintaining effective shielding against crosstalk and electromagnetic interference for high-frequency signals.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shield structure is divided into multiple segments: a first shield member attached to the mating connector and a second shield member attached to the connector. This segmentation allows each shield member to be independently optimized and assembled, reducing overall complexity while providing comprehensive noise shielding along the connection interface.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the shield structure is designed to reduce crosstalk and improve noise shielding, then transmission characteristics for high-frequency signals are improved, but manufacturing complexity increases

Engineering Contradiction:
Improvetransmission characteristicsVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The insulator and second shield member are combined into a single integrated component, eliminating the need for separate assembly steps. This merging simplifies manufacturing by reducing the number of parts to produce and assemble, while still providing effective shielding for high-frequency signal transmission.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The insulator serves multiple functions: electrical insulation between conductive elements, mechanical support for the contact and shield members, and structural integration with the second shield member. This multi-functionality reduces the total number of components needed, simplifying both manufacturing and assembly processes while maintaining reliable high-frequency transmission characteristics.

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

Data Source

PatentUS12136778B2Connector, connector module, and electronic apparatus
Publication Date: 2024.11.05 KYOCERA CORP
  • US12136778B2 patent drawing
  • US12136778B2 patent drawing
  • US12136778B2 patent drawing

AI summary

A connector according to the present disclosure is a connector to be mounted on a circuit board and to be connected to a mating connector including a first shield member. The connector includes an insulator, a contact attached to the insulator, and a second shield member attached to the insulator on a same side as the contact. The second shield member includes a base portion that is adjacent to the contact in a first direction perpendicular to a connecting direction in which the mating connector and the connector are to be connected, a mount portion is formed on a side of the base portion opposite to the contact in the first direction and that is to be mounted on the circuit board, and a contacting portion that extends from the mount portion toward a connection side in the connecting direction and that is to be in contact with the first shield member.