Crosstalk-Free Connector With Segmented Metal Shell

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Solution Overview

Problem

USB 3.0 connectors experience crosstalk interference between signal transmission terminal pairs due to return currents, leading to unstable signal transmission.

Innovation Solution

A crosstalk-free connector design featuring a metal shell with a crosstalk-eliminating slot between pairs of signal transmission terminals, housed within an insulative body, to prevent interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If two pairs of signal transmission terminals are used to increase data flow, then data transmission capacity is improved, but crosstalk interference between terminal pairs increases causing signal instability

Engineering Contradiction:

Improvedata transmission capacityVSAvoidsignal transmission stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The metal shell is segmented by introducing crosstalk-eliminating slots that divide the shielding structure into separate sections. Each slot creates an electromagnetic isolation barrier between adjacent signal terminal pairs, effectively segmenting the electromagnetic fields to prevent mutual interference while maintaining the integrity of multiple signal pairs for high-speed data transmission

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The crosstalk-eliminating slots act as intermediary elements between adjacent signal terminal pairs. These slots introduce grounding planes or shielding structures that serve as electromagnetic intermediaries, redirecting return currents and blocking electromagnetic field coupling between differential pairs, thereby eliminating crosstalk without compromising signal transmission capacity

Inventive Principle:

Principle #24Intermediary (Mediator)

2Area of stationary object

If signal transmission terminals are placed adjacent to each other to reduce connector size, then device compactness is improved, but crosstalk interference between adjacent terminals increases

Engineering Contradiction:

Improveconnector sizeVSAvoidcrosstalk interference

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

By segmenting the metal shell with crosstalk-eliminating slots, the patent creates electromagnetic isolation zones between closely spaced signal terminals. This allows compact terminal arrangement while preventing harmful electromagnetic coupling, as each slot acts as a physical and electromagnetic barrier that maintains signal integrity despite reduced spacing

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The metal shell structure is modified with localized crosstalk-eliminating slots positioned specifically between adjacent signal terminal pairs. This local modification creates targeted electromagnetic shielding exactly where crosstalk occurs, allowing compact overall connector design while maintaining signal isolation in critical areas through differentiated local structure

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20100273360A1Crosstalk-free connector

Publication Date: 2010.10.28 ADVANCED CONNECTEK INC

AI summary

A crosstalk-eliminating connector has an insulative body, multiple terminals and a metal shell. The terminals are mounted in the insulative body and some of the terminals are pairs of signal transmission terminals. The metal shell has at least one crosstalk-eliminating slot and each crosstalk-eliminating slot is located between two adjacent pairs of the signal transmission terminals when observed from the rear end of the insulative body. The at least one crosstalk-eliminating slot efficiently eliminates the crosstalk between adjacent pairs of the signal transmission terminals.