Female Connector Crimp-Pin Layout With Local Wave Absorption
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Solution Overview
Problem
Traditional connectors face challenges in managing crosstalk of differential signals at high frequencies and high densities, leading to signal integrity issues and increased weight due to excessive shielding and grounding materials.
Innovation Solution
The solution involves selectively disposing a wave-absorbing material in areas where high-frequency radiation occurs, such as the connection between a crimping pin and a drilling hole, to absorb crosstalk signals without affecting normal signals, thereby ensuring signal integrity and reducing connector weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional shielding materials and grounding materials are used to solve crosstalk of differential signals, then signal integrity is improved, but connector weight increases
Solution Approach 1:
The wave-absorbing material is selectively disposed in specific areas where high-frequency radiation occurs (such as near crimping pins and drilling holes) rather than uniformly throughout the connector. This localized approach absorbs crosstalk signals effectively while minimizing the amount of material used, thus reducing connector weight while maintaining signal integrity.
Solution Approach 2:
The patent extracts and addresses only the specific problem areas generating high-frequency radiation by placing wave-absorbing material precisely where needed (near crimping pins and drilling holes). This selective extraction of problematic areas allows for targeted noise reduction without the need for comprehensive shielding, thereby reducing overall material usage and weight.
2Object-generated harmful factors
If wave-absorbing material is used to absorb crosstalk electromagnetic waves, then crosstalk is reduced, but normally transmitted electrical signals are also absorbed, destroying signal integrity
Solution Approach 1:
The wave-absorbing material is strategically positioned in localized areas where high-frequency radiation is generated (near crimping pins and drilling holes) rather than being uniformly distributed. This localized placement ensures that only the harmful crosstalk signals from specific problem areas are absorbed, while the main signal transmission paths remain unaffected, preserving signal integrity.
Solution Approach 2:
The connector is segmented into different functional areas: problem areas (near crimping pins and drilling holes) where wave-absorbing material is placed to handle crosstalk, and signal transmission areas where no material is present to ensure clean signal passage. This segmentation allows differential treatment of different spatial zones based on their specific electromagnetic characteristics.
3Object-generated harmful factors
If traditional shielding and grounding methods are used, then crosstalk is reduced, but connector complexity and manufacturing difficulty increase
Solution Approach 1:
The patent extracts the essential function of crosstalk reduction by using only wave-absorbing material in specific locations, eliminating the need for complex combinations of shielding materials, grounding structures, and associated assembly procedures. This extraction simplifies the overall connector design while maintaining effectiveness in reducing crosstalk.
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 approach effectively reduces crosstalk while maintaining signal integrity, and it achieves this without the need for additional shielding materials, resulting in a lighter and more cost-effective connector design that can support high-speed and high-density applications.
Implementation Method 1
the connector or the conductor/conductor pair may be cladded with a wave-absorbing material, so as to eliminate the crosstalk of differential signals through the absorption effect of the wave-absorbing material on electromagnetic waves
Data Source
AI summary
An exemplary female connector is configured to connect to a PCB board, which is internally provided with a signal layer and a drilling hole penetrating the signal layer. The female connector includes a female terminal having two ends. The two ends include a connecting end for mating with a male connector or a gold finger circuit board, and another end forming a crimping pin to be inserted into a drilling hole and connected with the signal layer. A high-frequency radiation area is formed in the vicinity of a connection between the crimping pin and the drilling hole when the connecting end is mated with the male connector or the gold finger circuit board. A wave-absorbing material is disposed in a spatial scope covered by the high-frequency radiation area.