Connector Grounding Pin Reduces Signal Interference
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Solution Overview
Problem
The miniaturization of USB 3.1 Type-C connectors complicates the grounding plate's ability to shield signal interference between two rows of terminals, as the reduced distance between terminals hinders effective shielding.
Innovation Solution
A grounding pin is integrated into the grounding plate, extending into the space between the soldering portions of the terminals to create a shielding effect, reducing signal interference and enhancing transmission stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the connector is miniaturized to reduce size, then compactness is improved, but the grounding plate's ability to shield signal interference between terminals deteriorates
Solution Approach 1:
The grounding plate is segmented into a body portion and an extended grounding pin that protrudes between the terminal rows. This segmentation allows the grounding function to extend into the space between terminals, maintaining shielding effectiveness even when the overall connector size is reduced.
Solution Approach 2:
The grounding plate extends in the vertical dimension by adding a grounding pin that protrudes between the terminal rows. This dimensional extension provides additional shielding coverage without increasing the horizontal footprint of the connector, thus maintaining compactness while improving interference protection.
2Length of moving object
If the distance between terminals is reduced to achieve compactness, then device size is improved, but shielding effectiveness between terminal rows deteriorates
Solution Approach 1:
The grounding pin acts as an intermediary element positioned between the two rows of terminals. It provides a reference potential that mediates the electromagnetic field interaction between adjacent terminals, reducing crosstalk and signal interference even when terminals are closely spaced.
Solution Approach 2:
The grounding pin is positioned in advance between the terminal rows to establish a shielding barrier before signals are transmitted. This preliminary positioning of the grounding structure ensures that interference is prevented from the outset, rather than attempting to mitigate it after the fact.
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 reduces signal interference and improves transmission quality by providing a shielding structure that prevents signal interference between the terminals, as demonstrated by improved simulated characteristic impedance, insertion loss, and zero near-end crosstalk during high-frequency signal transmission.
Implementation Method 1
a grounding pin is provided on a grounding plate and extends into the space between the soldering portions of two rows of terminals to produce a shielding effect that enhances transmission quality
Data Source
AI summary
A connector capable of reducing signal interference between two rows of terminals by grounding pin of a grounding plate includes an insulating base, first terminals, second terminals, and the grounding plate; wherein the first and second terminals are embedded in the insulating base and are adjacent to its top and bottom respectively; and the grounding plate is embedded in the insulating base and lies between the first and second terminals. The connector is characterized in that the soldering portions of the second terminals as well as the first terminals are arranged horizontally and soldered to a circuit board; that the circuit board forms a separation area between the two rows of terminals; and that the grounding plate includes at least one grounding pin soldered to, and adjacent to the center of, the separation area to produce a shielding effect, and thereby prevent signal interference, between the two rows of terminals.