Connector Contact Assembly With Conductive Plastic Grounding for Low Crosstalk
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Solution Overview
Problem
Existing electrical connectors face challenges in effectively reducing crosstalk resonance peaks and facilitating high-speed signal transmission while maintaining structural robustness and electrical connectivity.
Innovation Solution
A contact assembly comprising a signal contact module with insert-molded signal contacts, ground contacts disposed beside signal contacts, and a conductive plastic member connecting the ground contacts, where the conductive plastic member enters holes in the ground contacts to provide mechanical and electrical connectivity, reducing crosstalk and enhancing signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional metal ground conductors are used to connect ground contacts, then electrical connectivity is achieved, but crosstalk resonance peaks are not effectively reduced and structural robustness is compromised
Solution Approach 1:
The patent employs a conductive plastic member as a composite material that combines the electrical conductivity needed for ground contact connectivity with the shock-absorbing properties of plastic material. This composite material effectively reduces crosstalk resonance peaks while maintaining structural robustness, resolving the contradiction between reducing harmful electromagnetic effects and ensuring structural reliability.
2Strength
If rigid connecting structures are used to maintain structural integrity, then mechanical strength is improved, but high-speed signal transmission is hindered due to increased crosstalk
Solution Approach 1:
The patent changes the material parameter from traditional rigid metal to conductive plastic, which has different mechanical and electrical properties. The conductive plastic member provides sufficient mechanical strength for structural integrity while its material characteristics reduce crosstalk, thereby enabling high-speed signal transmission without compromising structural strength.
3Ease of manufacture
If discrete ground contacts are used without effective connection, then manufacturing is simplified, but electrical connectivity and crosstalk reduction are insufficient
Solution Approach 1:
The patent merges multiple functions into the conductive plastic member: it simultaneously provides mechanical connection between ground contacts, electrical connectivity for grounding, and crosstalk reduction through its material properties. This single integrated component achieves effective ground contact connection and crosstalk reduction while maintaining manufacturing simplicity.
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
The solution effectively reduces crosstalk resonance peaks and enhances high-speed signal transmission by mechanically and electrically connecting ground contacts, thereby improving the structural integrity and signal integrity of electrical connectors.
Implementation Method 1
a conductive plastic member molded to connect the plurality of ground contacts; wherein each ground contact has a hole and the conductive plastic member enters the holes of the ground contacts
Implementation Method 2
a conductive plastic member molded to connect the plurality of ground contacts... electrically connecting the ground contacts, thereby improving the structural integrity and signal integrity
Data Source
AI summary
A contact assembly for an electrical connector includes: a signal contact module including an insulator and plural pairs of signal contacts insert-molded with the insulator; plural ground contacts each disposed beside a corresponding pair of signal contacts; and a conductive plastic member molded to connect the plurality of ground contacts, wherein each ground contact has a hole and the conductive plastic member enters the holes of the ground contacts.