Electrical Connector Terminal Soldering Pattern
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Solution Overview
Problem
Conventional video connectors experience unstable impedance when mounted on printed circuit boards, leading to unreliable high-frequency signal transmission.
Innovation Solution
An electrical connector with a specific terminal layout featuring soldering sections arranged in triangular patterns, ensuring consistent spacing and mounting, which stabilizes impedance during signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting processes (SMT or through hole) are used, then the connector can be mounted on PCBs, but the impedance of the terminals becomes unstable during operation
Solution Approach 1:
The patent applies local quality by arranging soldering sections of adjacent terminals at different heights (staggered arrangement), creating localized variations in the soldering plane. This prevents uniform impedance characteristics across all terminals and reduces mutual coupling effects, thereby stabilizing impedance during high-frequency signal transmission
Solution Approach 2:
The patent employs asymmetry by positioning soldering sections at non-uniform heights rather than in a flat plane. The staggered arrangement creates an asymmetric three-dimensional structure that disrupts symmetrical electromagnetic field patterns, reducing signal interference and improving impedance stability
2Reliability
If terminals are arranged in conventional layouts, then manufacturing is simple, but high-frequency signal transmission stability is poor
Solution Approach 1:
The staggered soldering section arrangement creates local height variations that optimize electromagnetic field distribution for high-frequency signals, improving transmission stability without requiring complete redesign of the entire connector structure
Solution Approach 2:
The patent transitions from a two-dimensional flat soldering plane to a three-dimensional staggered arrangement, utilizing the vertical dimension to improve signal transmission characteristics while maintaining compatibility with conventional manufacturing processes
Data Source
AI summary
An electrical connector has an insulative housing, a plurality of terminals and a metal shell. The terminals are mounted through the insulative housing and each terminal has a mounting section, a contacting section and a soldering section. The soldering sections of all the terminals are arranged in triangular patterns. Each soldering section is located in a tip of one triangular pattern. Distances between one soldering section and adjacent soldering sections are substantially identical. The triangular patterns of the soldering section stabilize the impedance of the operating electrical connector. Therefore, the electrical connector is stable and reliable.