Backplane Connector Terminal Layout for Stable Mating Impedance
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Solution Overview
Problem
Existing backplane connector assemblies face challenges in achieving impedance stabilization due to varying mating states between the backplane connector and the mating backplane connector.
Innovation Solution
The proposed solution involves a mating terminal module with specific conductive terminal configurations, including mating differential signal terminals, ground terminals, and connecting portions, which are integrated into a backplane connector assembly. This configuration maintains appropriate distances between conductive terminals and protrusions, ensuring impedance stabilization regardless of the mating state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the backplane connector and mating backplane connector are mated in multiple states, then the connector assembly can accommodate different connection scenarios, but the impedance stability deteriorates due to varying distances between conductive terminals and protrusions
Solution Approach 1:
The patent applies preliminary action by pre-configuring the connecting portions of the conductive terminals with specific geometric shapes (circular, elliptical, or rectangular cross-sections) before mating occurs. This pre-design ensures that regardless of the mating state, the distance between the conductive terminal surface and the protrusion surface remains within a controlled range, thereby maintaining impedance stability while accommodating multiple mating scenarios
Solution Approach 2:
The patent utilizes parameter changes by modifying the cross-sectional geometry of the connecting portions (circular, elliptical, or rectangular) and controlling the distance parameter between conductive terminals and protrusions. By adjusting these geometric parameters and spatial relationships, the design achieves impedance stabilization across different mating states while maintaining adaptability
2Ease of manufacture
If the distance between conductive terminals and protrusions is not controlled, then the structure is simpler to manufacture, but the impedance control capability deteriorates
Solution Approach 1:
The patent applies local quality by implementing specific geometric features (circular, elliptical, or rectangular cross-sections) at the connecting portions of the conductive terminals and at the protrusion surfaces. This localized geometric control ensures that the distance between conductive terminal surfaces and protrusion surfaces remains within a controlled range, achieving precise impedance control without requiring complex overall structural modifications
Data Source
AI summary
A mating terminal module includes a number of mating conductive terminals. Each mating conductive terminal includes a mating portion. The mating conductive terminals include a first mating signal terminal and a second mating signal terminal. The first mating signal terminal further includes a first connecting portion. The second mating signal terminal further includes a second connecting portion. The first connecting portion extends in a direction toward the second connecting portion, and the second connecting portion extends in a direction toward the first connecting portion. The present disclosure also discloses a mating backplane connector and a backplane connector assembly having the mating terminal module. Compared with the prior art, the present disclosure can achieve a better effect of impedance stabilization.