Electrical Connector Central Shielding Structure
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Solution Overview
Problem
Existing electrical connectors with shielding members suffer from electromagnetic radiation leakage, leading to crosstalk during high-speed signal transmission, and terminal assembly issues result in poor signal quality and mechanical instability.
Innovation Solution
An electrical connector design featuring upper and lower grounding plates that cover the base of an insulation body, along with an inner metal shell and outer metal shell, to enhance shielding and stability, including a middle grounding plate and specific terminal arrangements to prevent tilting and improve assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a shielding member is disposed at the tongue between the first surface and second surface, then the electrical connector has a compact structure, but electromagnetic radiation leaks backward causing crosstalk during high-speed signal transmission
Solution Approach 1:
The patent transitions from a single-plane shielding approach to a three-dimensional shielding structure by adding upper and lower grounding plates that extend vertically from the base, creating multi-layer electromagnetic shielding in the vertical dimension to effectively block backward radiation leakage
Solution Approach 2:
The shielding structure is segmented into multiple functional components: inner metal shell, outer metal shell, upper grounding plate, and lower grounding plate. Each segment serves specific shielding functions at different locations, collectively forming a comprehensive electromagnetic shielding system
2Quantity of substance
If terminals are simultaneously assembled to the first surface and second surface with more terminals on a smaller tongue, then the electrical connector has high terminal density, but operations are inconvenient causing terminals to not be mounted firmly and tilt upward
Solution Approach 1:
The terminal assembly process is segmented into separate operations for the first surface and second surface, allowing terminals to be mounted independently on each surface rather than simultaneously, improving assembly convenience and reducing tilting issues
Solution Approach 2:
The insulation body is pre-formed with dedicated mounting structures and positioning features before terminal assembly, providing stable foundations that prevent terminal tilting and facilitate easier mounting operations
3Quantity of substance
If terminals are assembled on a smaller tongue with more terminals, then the electrical connector achieves high terminal capacity, but the terminals are not mounted firmly damaging the whole electrical connector
Solution Approach 1:
The patent extends the insulation body structure vertically with upper and lower grounding plates that provide additional mounting surfaces and structural support, distributing terminal loads across multiple dimensions to improve mounting firmness while maintaining high terminal capacity
Solution Approach 2:
The insulation body combines plastic material with integrated metal grounding plates, creating a composite structure that provides both electrical shielding and mechanical support, enhancing terminal mounting reliability through the rigid metal components
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 electromagnetic radiation leakage, enhances signal transmission quality, and simplifies manufacturing while maintaining mechanical stability and cost-effectiveness.
Implementation Method 1
an inner metal shell and an outer metal shell. The inner metal shell has at least one covering portion disposed on the upper surface of the tongue, and at least one extending portion extending from the covering portion to the base, and the extending portion covers the base. The outer metal shell wraps the inner metal shell externally
Implementation Method 2
upper and lower grounding plates that cover a base portion of an insulation body
Data Source
AI summary
An electrical connector includes an insulation body, at least one first terminal and at least one second terminal, and a middle grounding plate. The insulation body has a base and a tongue located in a front end of the base. The first terminal and the second terminal are arranged in the base in an upper row and a lower row, and exposed to an upper surface and a lower surface of the tongue. The middle grounding plate has a body portion fixed to the tongue, and located between the first terminal and the second terminal, the first terminal has a first front edge, the second terminal has a second front edge, and the first front edge, the second front edge and an edge in a front end of the body portion are located in a same vertical plane.