High Speed Connector Signal Terminal Multi-Point Contact
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Solution Overview
Problem
Conventional high speed connectors face limitations in transmission performance due to the specific structure of their signal terminals, making it difficult to improve signal transmission efficiency for high frequency signals.
Innovation Solution
The high speed connector assembly features signal terminals with a signal fixing segment, a signal contacting segment, and a signal soldering segment, where the contacting segment has a main and secondary transmission point spaced apart, allowing simultaneous contact with mating terminals and reducing the distance between the main transmission point and the mating signal terminal's free end, preventing stub effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single transmission point structure is used, then the connector structure is simple, but the transmission performance for high frequency signals is limited
Solution Approach 1:
The signal contacting segment is divided into multiple transmission points (main transmission point and secondary transmission point) along the insertion direction. This segmentation allows different portions of the contacting segment to engage with the mating signal terminal at different stages, improving transmission performance through distributed contact while maintaining a manageable terminal structure.
Solution Approach 2:
The patent transitions from a single-point contact structure to a multi-point contact structure by adding the dimension of contact point distribution along the insertion direction. The main transmission point and secondary transmission point are arranged at different positions along the insertion direction, creating a distributed contact pattern that enhances high-frequency signal transmission.
2Reliability
If the distance between transmission point and mating terminal free end is large, then the connector assembly is easier to manufacture, but stub effect occurs affecting signal transmission
Solution Approach 1:
The patent optimizes the second distance (distance between main transmission point and mating signal terminal free end) to be less than 10% of the total length of the mating signal terminal. This parameter change significantly reduces stub effect and improves signal transmission quality. The controlled distance parameter becomes a key design criterion for achieving high-frequency signal integrity.
3Reliability
If only a main transmission point is used, then the contacting segment structure is simple, but transmission performance cannot be effectively improved
Solution Approach 1:
The signal contacting segment is divided into multiple transmission points (main transmission point and secondary transmission point) along the insertion direction. This segmentation allows different portions of the contacting segment to engage with the mating signal terminal at different stages, improving transmission performance through distributed contact while maintaining a manageable terminal structure.
Solution Approach 2:
The patent transitions from a single-point contact structure to a multi-point contact structure by adding the dimension of contact point distribution along the insertion direction. The main transmission point and secondary transmission point are arranged at different positions along the insertion direction, creating a distributed contact pattern that enhances high-frequency signal transmission.
Data Source
AI summary
A high speed connector assembly and an electrical connector thereof are provided. The electrical connector includes an insulating housing and a plurality of signal terminals fixed in the insulating housing. The insulating housing is in an elongated shape defining a longitudinal direction, and defines an insertion direction perpendicular to the longitudinal direction. The signal terminals are arranged in two rows each parallel to the longitudinal direction, and the signal terminals in one of the two rows respectively face that in the other row. Each of the signal terminals includes a signal fixing segment engaged with the insulating housing, a signal contacting segment, and a signal soldering segment. The signal contacting segment has a main transmission point and a secondary transmission point, which are spaced apart from each other along the insertion direction. The main transmission point is closer to the signal fixing segment than the secondary transmission point.