Conductive-Shell Connector Assembly for Stable High-Frequency Signals
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Solution Overview
Problem
Conventional high-speed electric connector assemblies face challenges in manufacturing accuracy and cost due to stringent requirements for the plastic housing, and they struggle to alleviate resonance during high-frequency signal transmission.
Innovation Solution
An electric connector assembly featuring an insulating housing with rows of contact terminals and a conductive shell that contacts and connects ground terminals, improving electrical performance and reducing manufacturing tolerance requirements by providing enhanced electric shielding and stabilizing high-frequency signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional manufacturing technology is used for the plastic housing, then manufacturing cost is reduced, but manufacturing precision and transmission performance deteriorate due to stringent tolerance requirements
Solution Approach 1:
The conductive shell acts as an intermediary component between the signal terminals and the ground terminals. It provides a standardized interface that mediates the electrical connection, allowing the plastic housing to have relaxed tolerances while still achieving the required transmission performance through the shell's precise conductive structures.
Solution Approach 2:
The invention changes the material parameter from insulating plastic to conductive material for the shell portion that interfaces with ground terminals. This parameter change allows for electromagnetic shielding and improved signal integrity without requiring the entire housing to meet stringent tolerance requirements.
2Reliability
If conventional plastic housing is used, then manufacturing cost is reduced, but transmission performance deteriorates due to lack of electromagnetic shielding
Solution Approach 1:
The shell is constructed as a composite structure combining conductive material properties for electromagnetic shielding with mechanical fastening features. This composite approach provides both the shielding function for reliable high-frequency transmission and the manufacturing simplicity of a unified structural component.
3Reliability
If ground terminals are not electrically connected, then device complexity is reduced, but transmission performance deteriorates due to resonance during high-frequency signal transmission
Solution Approach 1:
The conductive shell merges multiple ground terminals into a single unified electrical connection. By providing a continuous conductive path that connects all ground terminals together, the shell simplifies the overall structure while ensuring proper grounding for resonance suppression during high-frequency signal transmission.
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 improves the transmission performance of high-frequency signals and reduces manufacturing complexity and costs by integrating a conductive shell with protrusions that electrically connect ground terminals, enhancing shielding and stability.
Implementation Method 1
The conductive shell contacts and is connected with the ground terminals to electrically connect the ground terminals together
Data Source
AI summary
An electric connector assembly includes an insulating housing, a plurality of rows of contact terminals disposed in the insulating housing and including a plurality of signal terminals and a plurality of ground terminals, and a conductive shell assembled on the insulating housing. The conductive shell contacts and is connected with the ground terminals to electrically connect the ground terminals together.