Board-Connecting Electric Connector Signal Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing board-connecting electric connectors face interference in high-frequency signal transmission due to multiple contact points, affecting transmission characteristics and mating retention force.
Innovation Solution
A board-connecting electric connector with signal contact members arranged in a multipolar shape and power-source or ground contact members, where signal contact members have a single contact point and power-source or ground contact members have multiple contact points, integrated with an insulating housing for enhanced connectivity and impedance matching, reducing interference and improving mating retention force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If multiple contact portions are provided on contact members to obtain multipoint contact state, then mating force is improved, but signal interference increases
Solution Approach 1:
The contact members are segmented into two distinct types: signal contact members with single contact portions and power-source/ground contact members with multiple contact portions. This segmentation allows signal transmission to occur through single-point contacts, eliminating signal interference, while power and ground connections utilize multi-point contacts to provide sufficient mating force and electrical connectivity.
Solution Approach 2:
Different contact members are assigned different contact configurations based on their specific functional requirements. Signal contact members use single contact portions optimized for high-frequency signal integrity, while power-source and ground contact members use multiple contact portions optimized for mechanical retention and electrical conductivity. This local differentiation resolves the contradiction by applying the appropriate contact structure to each specific application.
2Reliability
If single contact portion is provided on signal contact members, then signal transmission characteristics are improved, but mating retention force may be insufficient
Solution Approach 1:
The connector combines multiple contact members with different functions into a single integrated structure. The signal contact members with single contact portions are merged with power-source contact members and ground contact members (which have multiple contact portions) within the same connector housing. This merging allows the system to achieve both good signal transmission characteristics and sufficient mating retention force through the combined contribution of different contact members.
Solution Approach 2:
The connector structure is designed to perform multiple functions simultaneously: signal transmission, power supply, and grounding. By incorporating different types of contact members (signal, power-source, and ground contact members) with different contact configurations into a single universal connector design, the system can satisfy multiple functional requirements without compromising overall performance.
Data Source
AI summary
A good mating state can be obtained while reducing interference of transmission signals by a simple configuration. A contact portion is provided at a single location on each of mating recessed portions of signal contact members arranged in a multipolar shape, contact portions are provided at a plurality of locations for a mating recessed portion of an integrated power-source contact member, and signal transmission is carried out through the single-location contact portion provided at the single location for each of the mating recessed portions of the signal contact members. As a result, particularly, interference in high-frequency transmission is reduced to obtain good transmission characteristics, while sufficient mating retention force is configured to be obtained by causing the contact portions at the plurality of locations provided on the mating recessed portion of the power-source contact member to be in a state in which the contact portions are in contact with contact portions of a mating counterpart by the plurality of locations.