High-Density Connector EMI Shielding via Segmented Walls
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Solution Overview
Problem
Conventional connectors for computing and communication devices face limitations in pin count and EMI shielding capacity as the number of terminals and computing/communication speed increase, leading to inadequate electromagnetic interference shielding.
Innovation Solution
A high-density connector design featuring a plug assembly with two plug pieces and a conducting plate, and a socket assembly with interleaved insulating and shielding pieces, both with EMI shielding walls, ensuring effective contact and enhanced shielding when plugged together.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of terminals and computing speed are increased, then the data transmission capacity is improved, but the EMI shielding effect deteriorates due to limited pin count and limited provision of EMI shielding elements
Solution Approach 1:
The connector is divided into multiple functional segments: signal transmission terminals, EMI shielding walls, and grounding structures. The EMI shielding elements are segmented and distributed around the terminal areas, with each segment providing localized shielding for specific terminal groups, thereby achieving comprehensive EMI protection across the entire connector while supporting high-density terminal arrangements
Solution Approach 2:
EMI shielding walls are introduced as intermediary structures between the signal terminals and the external environment. These shielding walls act as mediators that block electromagnetic interference from reaching the sensitive terminal areas, while grounding structures serve as intermediaries to channel intercepted EMI to ground, effectively protecting the high-speed signal transmission
2Object-affected harmful factors
If more EMI shielding elements are added to improve shielding effect, then the EMI shielding capacity is improved, but the device complexity increases
Solution Approach 1:
Multiple EMI shielding functions are merged into integrated shielding walls that simultaneously provide shielding for multiple terminal areas. The grounding structures are combined with the shielding walls to form unified EMI protection assemblies, reducing the total number of separate components while maintaining comprehensive shielding coverage across the high-density terminal arrangement
Solution Approach 2:
The EMI shielding walls serve multiple functions: they provide electromagnetic shielding, structural support for terminal positioning, and grounding pathways. This multi-functionality allows a single structural element to address multiple requirements (shielding, mechanical support, electrical grounding) without proportionally increasing device complexity
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 novel connector provides superior EMI shielding by integrating multiple terminals and shielding mechanisms, addressing the limitations of conventional connectors in high-density applications.
Implementation Method 1
The plug also contacts an EMI shielding wall enclosing the blades of the terminals. The socket assembly contacts a metallic plate embedded inside the insulating piece and/or the shielding piece, and the metallic plates in turn contact a metallic casing housing the socket assembly. The casing also contacts an EMI shielding wall enclosing the slots of the terminals. When the plug is plugged into the socket, the contact of their respective EMI shielding walls makes their respective shielding mechanisms together, so as to provide superior EMI shielding effect.
Data Source
AI summary
The plug of the connector mainly contains a plug assembly formed by joining two plug pieces, each providing a number of terminals arranged along two major sides of a blade. A conducting plate is sandwiched between the two plug pieces and contacts a metallic casing housing said plug assembly. The casing also contacts an EMI shielding wall enclosing the blades of terminals. The socket of the connector mainly contains a socket assembly formed by interleaving a number of insulating pieces and shielding pieces. Each insulating piece houses four L-shaped terminals and has L-shaped shielding plates positioned in the areas between the L-shaped terminals. The shielding plates contact a metallic plate embedded inside the insulating piece and/or the adjacent shielding piece and the metallic plates in turn contact a metallic casing housing the socket assembly. The casing also contacts an EMI shielding wall enclosing the slots of terminals.