Ground Bus Bridge Resonance Control in Electrical Connectors
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Solution Overview
Problem
Existing electrical connectors in communication systems face challenges with increased contact density and data throughput, leading to signal cross-talk and inconsistent solder interfaces between ground shields and contacts, which are costly and prone to mechanical or temperature-related failures.
Innovation Solution
A contact assembly with signal and ground contacts, where the ground bus bridge is integral with the ground contacts, extending across signal intermediate portions for resonance control, and is separate from the front and rear contact holders to improve electrical commoning and reduce manufacturing and assembly costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If contact density and data throughput are increased, then communication performance is improved, but signal cross-talk increases
Solution Approach 1:
A ground bus bridge is introduced as an intermediary component between ground contacts to provide enhanced electromagnetic shielding. The ground bus bridge acts as a mediator that distributes ground potential and creates shielding barriers between adjacent signal lines, thereby reducing cross-talk while maintaining high contact density and data throughput.
Solution Approach 2:
The ground bus bridge connects multiple ground contacts to establish equipotential regions between signal lines. By maintaining uniform ground potential across the connector interface, the patent reduces voltage differences that could cause electromagnetic interference and cross-talk, enabling higher data throughput without signal degradation.
2Object-affected harmful factors
If ground shields are soldered or welded to ground contacts, then electrical shielding is provided, but manufacturing and assembly costs increase
Solution Approach 1:
The ground bus bridge integrates multiple ground contact connections into a single unified component. Instead of separately soldering or welding individual ground shields to each ground contact, the ground bus bridge combines these functions, reducing the number of manufacturing steps and assembly operations while maintaining effective electrical shielding.
Solution Approach 2:
The ground bus bridge is designed to be self-supporting and self-aligning, eliminating the need for complex soldering or welding processes. The component's structure allows it to automatically position and connect to ground contacts through mechanical engagement alone, making the manufacturing process simpler and more cost-effective while providing reliable electrical shielding.
3Object-affected harmful factors
If ground shields are soldered or welded to ground contacts, then electrical shielding is achieved, but reliability decreases due to inconsistent solder interfaces
Solution Approach 1:
The patent replaces the soldering or welding mechanical systems with a pure mechanical connection system. The ground bus bridge uses precision-machined features to mechanically engage with ground contacts, eliminating solder interfaces entirely. This substitution provides more consistent and reliable electrical connections that are not susceptible to soldering variations, mechanical stresses, or temperature-related failures.
4Reliability
If ground bus bridge extends across signal intermediate portions, then resonance control is achieved, but device complexity increases
Solution Approach 1:
The ground bus bridge is designed to perform multiple functions simultaneously: it provides electrical shielding between signal lines, establishes equipotential regions, controls resonance by extending across signal intermediate portions, and mechanically supports ground contacts. By consolidating these functions into a single component, the patent achieves resonance control without proportionally increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances signal transmission by controlling resonance and reduces the risk of mechanical or temperature-related failures, providing a reliable and cost-effective electrical connector with improved performance.
Implementation Method 1
The ground bus bridge extends across the signal intermediate portions in close proximity to the signal intermediate portions for resonance control of signals transmitted along the signal contacts
Data Source
AI summary
A contact assembly includes a contact array having contacts including signal contacts and ground contacts. The signal contacts include signal intermediate portions extending between signal mating beams and signal contact tails. The ground contacts include ground intermediate portions extending between ground mating beams and ground contact tails. The contact assembly includes front and rear contact holders. The contact assembly includes a ground bus bridge extending between each of the ground contacts to electrically common each of the ground contacts. The ground bus bridge is integral with the ground contacts and extends across the signal intermediate portions in close proximity to the signal intermediate portions for resonance control of signals transmitted along the signal contacts.