Electrical Connector Laminated Terminal Structure for High-Frequency Signal Integrity
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Solution Overview
Problem
Existing electrical connectors suffer from an open stub effect during high-frequency signal transmission, affecting their performance and limiting the dense arrangement of contact members due to the design of their insertion portions and junction locations.
Innovation Solution
The electrical connector features a substrate with accommodating holes, first and second terminals with elastic arms and laminated surfaces, and fixing portions that are in interference fit, allowing for improved contact and reduced distance between terminals, thus minimizing the open stub effect and enabling a denser arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first insertion portion and the second insertion portion are separated and contact the conductive material respectively, then electrical conduction is achieved, but the open stub effect occurs affecting high-frequency performance
Solution Approach 1:
The first insertion portion and second insertion portion are merged into a single integrated structure that contacts the conductive material of the through hole as one continuous element. This merging eliminates the gap between separate insertion portions, removing the open stub effect that degraded high-frequency performance, while maintaining reliable electrical conduction from the first contact member through the through hole to the second contact member.
2Reliability
If the first junction portion and the second junction portion are located at opposite sides of the through hole, then electrical connection is established, but the gap between adjacent through holes is large affecting dense arrangement
Solution Approach 1:
The junction portions are repositioned from opposite sides of the through hole to adjacent positions on the same side of the through hole. This spatial reconfiguration in a different dimensional arrangement allows the first junction portion and second junction portion to be located next to each other, significantly reducing the gap between adjacent through holes and enabling denser arrangement of contact members while maintaining reliable electrical connections.
3Strength
If the insertion portions are shaped like pinholes with wide middle and narrow ends, then structural integrity is maintained, but only a limited section contacts the conductive material reducing conduction efficiency
Solution Approach 1:
The shape parameters of the insertion portions are modified from a pinhole configuration with wide middle and narrow ends to a configuration that maximizes contact surface area with the conductive material. By changing the geometric parameters of the insertion portions, the contact section is extended along the through hole, improving conduction efficiency while maintaining sufficient structural integrity for mechanical strength.
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
This configuration enhances high-frequency performance by reducing the open stub effect and allowing for a more dense arrangement of terminals, improving signal transmission efficiency.
Implementation Method 1
a first elastic arm located outside the accommodating hole and abutting the first mating component along a vertical direction... a second elastic arm located outside the accommodating hole and abutting the second mating component along the vertical direction
Implementation Method 2
a first fixing portion retained in the accommodating hole... a second fixing portion retained in the accommodating hole... allowing for improved contact and reduced distance between terminals
Data Source
AI summary
An electrical connector includes a substrate provided with an accommodating hole, and a first terminal and a second terminal provided vertically. The first terminal has a first elastic arm located outside the accommodating hole, and a first fixing portion retained in the accommodating hole. A plate surface of the first fixing portion forms a first laminated surface. The first elastic arm and the first laminated surface are located at two opposite sides of the first fixing portion. The second terminal has a second elastic arm located outside the accommodating hole, and a second fixing portion retained in the accommodating hole. A plate surface of the second fixing portion forms a second laminated surface parallel to and laminated with the first laminated surface along a horizontal direction. The second elastic arm and the second laminated surface are located at a same side of the second fixing portion.