High Speed Socket Connector Shielding and Impedance Control
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Solution Overview
Problem
High speed connectors face challenges in ensuring signal integrity and reducing electromagnetic interference, particularly conductive interference, which existing technologies have not adequately addressed.
Innovation Solution
A high speed socket connector design featuring upper and lower shields with elastic fingers that form grounding connections with terminals, combined with serpentine-shaped signal terminal retaining sections and shielding, to improve coupling performance, impedance regulation, and filtering effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If shielding structures are added to reduce electromagnetic interference, then electromagnetic compatibility is improved, but device complexity increases
Solution Approach 1:
The patent combines the shielding function with the insulative body by integrating conductive shielding layers into the insulative body structure. The upper and lower shields are merged with the insulative body to form an integrated assembly, reducing the number of separate components while maintaining electromagnetic shielding effectiveness.
Solution Approach 2:
The insulative body serves multiple functions: it provides electrical insulation, structural support, and electromagnetic shielding. The shielding structures are designed to perform both interference reduction and mechanical positioning functions, eliminating the need for separate dedicated shielding components.
2Reliability
If serpentine-shaped retaining sections are used for impedance regulation and filtering, then signal integrity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses serpentine-shaped retaining sections to change the electrical path length and distribution, thereby adjusting impedance characteristics and filtering properties. The geometric transformation of the terminal retaining sections modifies the electrical parameters to achieve optimal signal integrity.
3Object-affected harmful factors
If elastic fingers are added to form grounding connections, then electromagnetic compatibility is improved, but device complexity increases
Solution Approach 1:
The elastic fingers are designed to automatically make contact with grounding terminals through their inherent elasticity, without requiring additional actuation mechanisms. The spring-loaded design ensures continuous grounding connection through self-adjusting contact pressure, eliminating the need for complex grounding control systems.
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 connector achieves effective shielding, balances differential pair signal terminal coupling performance, and adjusts impedance and filtering, thereby enhancing electromagnetic compatibility and reducing interference.
Implementation Method 1
each elastic finger of the upper shield enters into the corresponding second opening and contacts with the corresponding grounding terminals of the row of upper terminals to form a grounding connection
Implementation Method 2
the retaining sections of these differential pairs of signal terminals are disposed to be a serpentine shape for achieving the adjustment of the impedance and filtering effect
Data Source
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AI summary
A high speed socket connector is disclosed in this invention, including a case, a terminal mould, an upper shield and a lower shield. The terminal mould includes an insulative body, a row of upper terminals and a row of lower terminals. The insulative body forms multiple first openings and second openings. The upper terminals and the lower terminals both include multiple differential pairs of signal terminals and multiple grounding terminals. Each signal terminal has a serpentine retaining section exposed in the corresponding first opening. Each grounding terminal has a straight retaining section exposed in the corresponding second opening. The upper shield and the lower shield are respectively mounted on the top and the bottom of the terminal mould. The high speed socket connector can realize a good shielding effect by the connection of the upper and lower shields and the grounding terminals.