High-Speed Connector Terminal With Dual Contact Points
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Solution Overview
Problem
High-speed connectors have a relatively long stub between the contact point of the conductive terminal and the docking edge of the docking terminal, which negatively impacts signal integrity performance.
Innovation Solution
The connector design features a terminal assembly with a first and second contact point on the same side of the conductive terminal, where the second contact point is positioned behind the first, allowing both to abut on the same docking terminal, thereby shortening the stub and improving signal integrity. Additionally, features like grooves, contact planes, and insulating blocks are used to enhance the connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductive terminal is bent downward to form a contact point for docking, then the connector can be connected to the docking connector, but the stub length becomes relatively large resulting in poor signal integrity performance
Solution Approach 1:
The conductive terminal is segmented into multiple contact points (first contact point and second contact point) along its length. This segmentation allows different portions of the terminal to contact the docking terminal at different stages of docking, effectively reducing the stub length and improving signal integrity performance.
Solution Approach 2:
The contact points are arranged in a spatial distribution along the conductive terminal, utilizing the longitudinal dimension of the terminal. This dimensional arrangement enables multiple contact points to engage with the docking terminal sequentially or simultaneously, reducing the effective stub length in the docking direction.
2Reliability
If the stub length is shortened to improve signal integrity, then the SI performance is improved, but the structural design becomes more complex requiring multiple contact points and additional components
Solution Approach 1:
The conductive terminal is divided into multiple functional segments with distinct contact points. This segmentation achieves stub length reduction while maintaining a relatively simple overall structure, as the segmentation is integrated into the terminal itself rather than requiring separate components.
Solution Approach 2:
The conductive terminal serves multiple functions: it provides electrical connection, mechanical support, and signal transmission. The multiple contact points on the same terminal fulfill both connection and stub length reduction requirements, avoiding the need for additional specialized components.
3Reliability
If multiple contact points are added to the conductive terminal, then the stub length is reduced and signal integrity is improved, but the manufacturing process becomes more difficult
Solution Approach 1:
The conductive terminal is formed with multiple contact points through integrated manufacturing processes such as stamping, bending, or molding. These segmentation features are incorporated into the terminal fabrication process itself, avoiding the need for complex post-processing or assembly operations.
Solution Approach 2:
The manufacturing approach utilizes parameter changes in the forming process (such as bending radius, contact point spacing, and terminal geometry) to achieve the desired multi-contact-point structure. These parameter adjustments are made within standard manufacturing capabilities, maintaining ease of production.
Data Source
AI summary
A connector includes an insulating body and a terminal assembly. Where the terminal assembly includes a plurality of conductive terminals that are disposed side by side in the insulating body; a front end of each of the plurality of conductive terminals protrudes to form a first contact point and a second contact point, which are along a docking direction of the connector spaced apart on a same side of the each of the plurality of conductive terminals in sequence; and after the connector is docked with a docking connector, both the first contact point and the corresponding second contact point abut on a same docking terminal of the docking connector.