Single-Pair Connector Coupler Layout for Polarity and Crosstalk Control
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Solution Overview
Problem
Existing Ethernet cables and connectors primarily use four pairs of conductors for data and power transfer, limiting the potential for more compact and efficient transmission using a single twisted pair of conductors.
Innovation Solution
Development of couplers that electrically couple pairs of connectors to a single twisted pair of conductors, utilizing a metal housing with offset pin contacts to maintain electrical polarity and prevent alien crosstalk, and optionally incorporating a metal shield for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If four pairs of conductors are used for data and power transfer, then electrical integrity and noise immunity are improved, but cable size and complexity increase
Solution Approach 1:
The invention extracts the essential function of data and power transfer from the conventional four-pair Ethernet cable structure and implements it using only a single twisted pair of conductors. By removing the unnecessary three additional pairs of conductors, the cable size is reduced while maintaining the core functionality through a simplified connector design with fewer contact points.
Solution Approach 2:
The invention segments the connector into a minimal configuration with exactly two contact points, one for each conductor in the single twisted pair. This segmentation eliminates the need for additional contact points and structural elements required for four-pair cables, thereby reducing overall cable and connector volume while preserving electrical integrity through optimized contact geometry.
2Volume of moving object
If a single twisted pair of conductors is used, then cable compactness is improved, but susceptibility to noise and crosstalk increases
Solution Approach 1:
The invention addresses noise and crosstalk susceptibility by transitioning from a planar contact arrangement to a three-dimensional configuration where contact points are positioned at different spatial locations and angles. The tapered contact points meet at an apex, creating a geometric structure that provides natural isolation between signal paths and reduces electromagnetic interference through spatial separation.
Solution Approach 2:
The connector incorporates a composite structure combining conductive contact points with insulating housing materials. The contact points feature a tapered geometry with a flattened apex that provides both electrical conductivity and mechanical stability, while the surrounding insulating material prevents electromagnetic coupling between conductors, thereby reducing crosstalk and noise in the compact single-pair configuration.
3Reliability
If offset pin contacts are used to maintain electrical polarity, then signal integrity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The connector design incorporates preliminary alignment features such as keyed slots, positioning ribs, or asymmetric housing structures that guide the contact points into their correct offset positions during assembly. This preliminary action ensures proper electrical polarity and signal integrity before the final mating connection is made, reducing the burden on precision control during the actual contact formation process.
Solution Approach 2:
The contact points feature a tapered geometry with varying cross-sectional parameters along their length, transitioning from a wider base to a flattened apex. This parameter change provides a self-aligning mechanism where the contact points naturally orient themselves during insertion, compensating for minor manufacturing variations and ensuring consistent electrical polarity and signal integrity across production batches.
Data Source
AI summary
A coupler couples a first connector with a second connector wherein each of the connectors is coupled to exactly two electrical conductors. Each coupler can be utilized in a shielded (e.g., metal) or non-shielded (e.g. non-metal) form as appropriate to a specific application. Each coupler includes exactly one pair of pin contacts, preferably with a square or rectangular cross-section. Each end of the pin contacts includes four tapered faces that join at a flattened apex and are configured to be received by the tuning fork contact of the connector. The pair of pin contacts are offset from one another and cross one another within the coupler to maintain electrical polarity as electricity travels from the tuning fork contacts of a first connector to the pin contacts of the coupler and onward to the tuning fork contacts of a second connector.