Electrical Connector Side Wall Segmentation for Crosstalk Reduction
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Solution Overview
Problem
Existing electrical connectors face issues with crosstalk interference and vulnerability to dust and dirt due to reduced material in the side walls, leading to signal integrity problems and potential damage, especially in high-frequency applications.
Innovation Solution
The design incorporates spacers between differential signal terminals and ground terminals, with parts of these spacers being partially removed to reduce capacitance and maintain signal transmission quality, while maintaining the integrity and strength of the side walls and preventing dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If material is removed from the side wall to reduce crosstalk interference, then signal integrity is improved, but the side wall becomes thinner and more fragile, reducing structural strength
Solution Approach 1:
The side wall is segmented into multiple sections: intact outer portions that maintain structural strength, and a removed inner portion that reduces crosstalk. This segmentation allows different regions to serve different functions - the outer portions provide structural support while the removed inner portion improves signal integrity by reducing interference between terminals.
Solution Approach 2:
The side wall structure is modified locally rather than uniformly. The outer portions of the side wall are kept intact to maintain overall structural strength, while only the inner portion between terminals is removed to reduce crosstalk. This local modification approach allows the structure to have different properties in different regions - strong where needed for support and open where needed for signal quality.
2Reliability
If material is removed from the side wall to reduce crosstalk, then signal transmission quality is improved, but dust and dirt can easily enter the connector, causing contamination and short circuits
Solution Approach 1:
The side wall opening is segmented into a removed inner portion for signal quality and retained outer portions for protection. This creates a controlled opening that removes material only where needed for reducing crosstalk while preserving the outer barrier that prevents dust and dirt from entering the terminal grooves.
Solution Approach 2:
The side wall is designed with different qualities in different regions: the outer portions maintain their protective function against contamination, while the inner portion is removed to improve signal transmission. This local differentiation allows the structure to simultaneously achieve both contamination protection and signal quality improvement.
3Productivity
If terminals are arranged at a smaller interval to increase density, then connector compactness is improved, but crosstalk interference between terminals increases, affecting signal integrity
Solution Approach 1:
The dielectric material causing crosstalk is extracted (removed) from the inner portion of the side wall between adjacent terminals. This removal eliminates the source of interference that would otherwise be present due to the close spacing, allowing high-density terminal arrangement without sacrificing signal integrity.
Solution Approach 2:
The side wall structure is modified locally between terminals to have different dielectric properties: the inner portion is removed to reduce crosstalk, while the outer portions are retained to maintain structural support. This allows close terminal spacing while creating localized low-interference zones between adjacent signal paths.
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
This design effectively reduces crosstalk interference and maintains high-frequency signal transmission quality while preventing damage from dust and ensuring reliable electrical contact, thus enhancing the durability and performance of the electrical connector.
Implementation Method 1
The spacer between the each pair of differential signal terminals and the first ground terminal is at least partially removed... capacitance between the each pair of differential signal terminals and the first ground terminal may be reduced
Data Source
AI summary
An electrical connector comprises a body and a plurality of terminals. The body may comprise a slot, a one side wall, a plurality of spacers and a plurality of terminal grooves. The side wall is adjacent to the slot, the plurality of spacers are positioned on the side wall and arranged alongside the slot. The plurality of terminal grooves are adjacent to the side wall, the each spacer is positioned between the adjacent two terminal grooves. The plurality of terminals comprise two pairs of differential signal terminals and a ground terminal, the ground terminal is positioned between the two pairs of differential signal terminals. The two pairs of differential signal terminals and the ground terminal are received in the corresponding terminal grooves. The spacer between the each pair of differential signal terminals and the ground terminal can be partially removed.