Conductive Plastic Connector Crosstalk Reduction
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Solution Overview
Problem
High-frequency connectors face issues with crosstalk and short circuit problems due to miniaturization, leading to poor contact and structural weaknesses that hinder high-speed signal transmission, and the complex grounding structure increases assembly difficulties and errors.
Innovation Solution
An electrical connector design featuring an electrically conductive plastic member with positioning grooves and connecting blocks, which provides flexibility and ductility, and includes buckle blocks and abutment blocks to securely engage terminal blocks, reducing crosstalk and short circuits by optimizing terminal spacing and contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the connector size is reduced for miniaturization, then the electronic product size is reduced, but the distance between terminals becomes too close causing crosstalk and electromagnetic wave interference
Solution Approach 1:
The patent introduces an electrically conductive plastic member as an intermediary substance between adjacent terminal blocks. This member fills the gaps between terminals and provides electromagnetic shielding, acting as a mediator that reduces crosstalk and interference while allowing the connector to maintain a compact size. The conductive plastic material serves as a barrier that prevents harmful electromagnetic waves from coupling between adjacent signal lines.
2Object-affected harmful factors
If a ground plate is used to connect ground terminals, then electromagnetic shielding is improved, but the structure becomes complicated and assembly steps increase
Solution Approach 1:
The patent merges the grounding function with the insulating housing structure by integrating the electrically conductive plastic member directly into the housing. Instead of using a separate ground plate that requires additional assembly steps, the conductive plastic is combined with the housing to form an integrated structure that provides both insulation and electromagnetic shielding functions simultaneously, thereby simplifying the overall grounding structure.
Solution Approach 2:
The electrically conductive plastic member serves multiple functions: it acts as an insulator between terminal blocks, provides electromagnetic shielding, fills gaps between components, and establishes ground connections. This multi-functional element replaces the need for separate ground plates and shielding structures, reducing device complexity while maintaining effective electromagnetic shielding.
3Reliability
If terminal blocks are stretched outward to improve contact, then initial contact is improved, but the structure strength is reduced and poor contact occurs over time
Solution Approach 1:
The patent changes the material parameter of the insulating housing to electrically conductive plastic, which has different mechanical and electrical properties compared to conventional insulating materials. This material change allows the housing to provide both structural support and electrical functionality, enabling the terminal blocks to maintain proper contact pressure without excessive outward stretching, thus preserving structure strength while ensuring reliable contact.
4Volume of moving object
If the distance between terminals is reduced for miniaturization, then connector size is reduced, but assembly errors and short circuits increase
Solution Approach 1:
The electrically conductive plastic member acts as a physical intermediary that fills the reduced gaps between closely spaced terminals. This mediator provides a tactile and visual guide during assembly, helping operators correctly position terminal blocks even when terminals are in close proximity. The material's properties make it easy to identify and work with, reducing assembly errors despite the challenging miniaturized geometry.
Data Source
AI summary
An electrical connector includes an electrically conductive plastic member having positioning grooves and connecting blocks arranged continuously, a side plate on one side of each positioning groove, a concave wall on an opposite side of each positioning groove and each of two opposite sides of each connecting block and butting bumps protruded from the side plates and the concave walls, and a terminal block provided with conductive terminals and having buckle blocks bent downward from one side thereof and used to be buckled to respective positioning grooves, abutment blocks formed on the buckle blocks for abutting against respective concave wall and proximity grooves provided between the adjacent said buckle blocks or the abutment blocks for respective butting bumps to extend and abut.