Double-Shielded High-Speed Docking Connector Crosstalk Reduction
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Solution Overview
Problem
Existing high-speed docking connectors fail to effectively eliminate crosstalk noise between signal terminals of adjacent differential pairs, which affects signal integrity in high-speed systems.
Innovation Solution
A double-shielded high-speed docking connector design featuring a longitudinal die-casting metal shell, positioning seat, and frame assemblies with dual shielding members and grounding pieces to reduce crosstalk and signal interference between adjacent differential pairs and frame assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional high-speed docking connector structure is used, then the device complexity is low, but crosstalk noise between adjacent differential pairs cannot be eliminated, affecting signal integrity
Solution Approach 1:
The patent introduces a first shielding member positioned between adjacent differential pairs to block electromagnetic interference. This intermediary structure absorbs or reflects electromagnetic waves, preventing crosstalk between signal terminals while maintaining a relatively simple overall connector design
Solution Approach 2:
The patent implements a nested shielding structure where a second shielding member is positioned within the first shielding member, creating multiple layers of electromagnetic protection. This nested arrangement provides enhanced signal integrity through cumulative shielding effects without proportionally increasing device complexity
2Reliability
If shielding structures are added to reduce crosstalk, then signal integrity improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The shielding members are designed to serve multiple functions: they provide electromagnetic shielding, act as structural support elements, and facilitate assembly through integrated positioning features. This multi-functionality reduces the need for separate components, simplifying manufacturing despite the enhanced shielding capability
Solution Approach 2:
The patent employs thin metallic shielding members that can be easily formed and positioned. These thin-film structures provide effective electromagnetic shielding while being lightweight and easy to integrate into the connector assembly, reducing manufacturing complexity compared to bulky shielding structures
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 double-shielded design significantly reduces crosstalk between signal terminals of adjacent differential pairs and minimizes signal interference between adjacent frame assemblies, enhancing signal integrity in high-speed systems.
Implementation Method 1
Each frame assembly includes an insulating body, two columns of signal terminals supported by the insulating body and arranged to be multiple differential pairs, a first shielding member mounted on one side of the insulating body, and a second shielding member mounted on the other side of the insulating body and connected with the first shielding member
Data Source
AI summary
A double-shielded high-speed docking connector is disclosed in this invention. The connector includes a shell, a positioning seat and a row of frame assemblies. The frame assembly includes an insulating body, two columns of signal terminals supported by the insulating body and arranged to be multiple differential pairs, a first shielding member mounted on one side of the insulating body, and a second shielding member mounted on the other side of the insulating body and connected with the first shielding member. The double-shielded high-speed docking connector of the present invention can not only reduce crosstalk between the signal terminals of adjacent differential pairs, but also effectively reduce signal interference of adjacent frame assemblies by disposing two shielding members on each frame assembly.