Electrical Connector Shielding Walls for High-Speed EMI Control
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Solution Overview
Problem
Electrical connectors are prone to interference, such as electromagnetic interference and crosstalk, when transmitting high-speed signals, leading to signal attenuation.
Innovation Solution
The electrical connector design includes a conductive plastic base with U-shaped non-grounding terminal shielding walls on at least three sides of each non-grounding conductive terminal, providing electrical shielding and impedance matching to reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrical connector structure is used, then device complexity is low, but electromagnetic interference and crosstalk occur during high-speed signal transmission
Solution Approach 1:
The connector is divided into multiple functional modules: insulating terminal base, conductive plastic base, shielding walls, and terminal assemblies. Each module performs a specific function (insulation, conduction, shielding, connection), allowing the complex shielding structure to be organized into manageable segments that work together to reduce interference while maintaining signal transmission quality
Solution Approach 2:
The conductive plastic base acts as an intermediary element between the insulating terminal base and the shielding structure. It provides both mechanical support and electrical connection, enabling the shielding walls to be effectively coupled to the grounding terminals while maintaining structural integrity and reducing electromagnetic interference
2Reliability
If shielding structures are added to reduce interference, then signal transmission quality improves, but manufacturing complexity increases
Solution Approach 1:
The shielding walls are integrated with the conductive plastic base and insulating terminal base to form a unified structure. The shielding walls share common grounding terminals with the terminal assemblies, eliminating the need for separate grounding structures and simplifying the manufacturing process while maintaining effective electromagnetic shielding
Solution Approach 2:
The conductive plastic base serves multiple functions: it provides mechanical support for the terminal assemblies, establishes electrical connections between components, and forms part of the shielding structure. This multi-functionality reduces the number of separate parts needed, simplifying manufacturing while achieving effective interference reduction
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 design effectively reduces interference and optimizes the transmission quality of high-speed signals, meeting the requirements of advanced electronic devices.
Implementation Method 1
the major conductive plastic base body, the major first conductive plastic wall structure, the major second conductive plastic wall structure, the major first grounding conductive terminal, and the major second grounding conductive terminal to form a major non-grounding terminal shielding wall
Data Source
AI summary
An electrical connector is described that provides a shielding wall for at least three sides of non-grounded conductive terminals, enabling the transmission of shielded signals. This design effectively reduces interference for the electrical connector when transmitting high-speed signals, thereby optimizing the transmission quality of high-speed signals for the electrical connector. This meets the specific requirements and advancements in electronic devices.