Intermediate Connector Terminal Contact Positioning for Signal Integrity
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Solution Overview
Problem
When connecting circuit board connectors via intermediate connectors, existing technologies face challenges in maintaining signal transmission quality due to stub-induced resonance, which degrades high-speed signal transmission characteristics.
Innovation Solution
The use of intermediate electrical connectors with protruding and leaf contact point portions positioned closer to the free ends of the terminals, eliminating or minimizing stubs by ensuring that the contact portions of the terminals are securely held by movable and stationary retainers, and biasing members apply pressure to maintain contact pressure and prevent signal degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact portions of the terminals are positioned farther from the free ends to ensure stable contact, then contact stability is improved, but stub length increases causing signal degradation
Solution Approach 1:
The patent changes the positional parameter of the contact portions relative to the terminal free ends. By positioning contact portions closer to the free ends, the stub length is reduced to minimize resonance and signal degradation, while contact stability is maintained through the resilient displacement capability of the terminals.
Solution Approach 2:
The patent introduces dynamic capability to the terminals through resilient displacement. The terminals can dynamically adjust their position to maintain stable contact while accommodating the reduced stub length, allowing the contact portions to remain stable even when positioned closer to the free ends.
2Length of stationary object
If intermediate connectors are used to connect circuit board connectors, then connection distance is extended, but signal transmission quality deteriorates due to stub-induced resonance
Solution Approach 1:
The patent changes the structural parameters of the intermediate connector terminals by positioning their contact portions closer to the free ends. This reduces the stub length in the intermediate connector, minimizing resonance effects and signal degradation while maintaining the ability to extend connection distance through the use of intermediate connectors.
Solution Approach 2:
The intermediate connector serves as a mediator between circuit board connectors. By optimizing the terminal structure in the intermediate connector with contact portions positioned closer to free ends, the harmful resonance effects are minimized while the intermediary function of extending connection distance is preserved.
3Object-generated harmful factors
If protruding and leaf contact point portions are positioned closer to free ends of terminals, then stub-induced resonance is reduced, but contact pressure stability may be compromised
Solution Approach 1:
The patent introduces dynamic resilience to the terminal structure. The resilient displacement capability allows the terminals to dynamically maintain stable contact pressure even when contact portions are positioned closer to the free ends, compensating for any potential instability from the reduced stub configuration.
Solution Approach 2:
The patent converts the potential harm of reduced stub length (which could compromise contact pressure stability) into a benefit by utilizing the resilient displacement capability. The resilience transforms the rigid structural constraint into a flexible solution that maintains both reduced resonance and stable contact pressure.
Data Source
AI summary
The contact portions 22, 122 of the terminals 20, 120 of the two circuit board connectors 1 and the intermediate electrical connector 3 have leaf contact point portions 22B, 122B extending in the above-mentioned direction of connection of the connectors and protruding contact point portions 22A-1, 122A-1 located closer to the free end side of the terminals 20, 120 than to said leaf contact point portions 22B, 122B; and, in a connected state, the protruding contact point portions of the above-mentioned terminals are made contactable with the leaf contact point portions of the counterpart terminals.