Terminal Module Isolation Ribs for Backplane Connector Testing
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Solution Overview
Problem
Existing backplane connectors face challenges in determining electrical performance due to non-conduction issues between conductive plastic and ground terminals, made of different materials, leading to inconsistent results during electrical testing.
Innovation Solution
A terminal module design featuring an insulating member with conductive terminals and conductive plastic, where the first rib is adjacent but not in contact with the first ground terminal, and the second rib is adjacent but not in contact with the second ground terminal, allowing for effective shielding while preventing conduction between ground terminals, facilitating accurate electrical testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductive plastic is brought into contact with the ground terminals to achieve shielding performance, then the shielding area is increased, but the electrical test reliability deteriorates due to non-conduction between different materials
Solution Approach 1:
The patent introduces isolation ribs that segment the conductive plastic from the ground terminals, creating distinct electrical zones. The conductive plastic is divided into multiple isolated contact areas, each separated by insulating ribs, preventing unintended electrical conduction while maintaining shielding effectiveness through distributed capacitance coupling.
Solution Approach 2:
The patent introduces an intermediary insulating structure (isolation ribs) between the conductive plastic and ground terminals. This intermediary element allows electromagnetic field coupling for shielding while preventing direct electrical conduction, resolving the material incompatibility issue during electrical testing.
2Area of stationary object
If the conductive plastic contacts the ground terminals to form a continuous ground connection, then the shielding area increases, but the electrical test consistency deteriorates due to material conductivity differences
Solution Approach 1:
The continuous ground connection is segmented into multiple isolated contact regions by insulating ribs. Each segment maintains electrical isolation from adjacent segments, ensuring stable and predictable electrical characteristics while collectively providing comprehensive shielding coverage through distributed electromagnetic coupling.
Solution Approach 2:
The patent applies different electrical properties to different regions: the conductive plastic maintains high conductivity within each contact region for effective shielding, while isolation ribs provide insulating properties to prevent inter-segment conduction. This local differentiation of electrical quality ensures both shielding effectiveness and test consistency.
Data Source
AI summary
A terminal module includes an insulating member, a number of conductive terminals, and a conductive plastic. Each conductive terminal includes a fixing portion. The conductive terminals include a group of signal terminals, a first ground terminal and a second ground terminal. The terminal module includes a first rib, a second rib and a groove. The first rib is adjacent to but not in contact with the fixing portion of the first ground terminal. The second rib is adjacent to but not in contact with the fixing portion of the second ground terminal. The present disclosure also relates to a backplane connector having the terminal module. Compared with the prior art, by making the first ground terminal and the second ground terminal non-conducting, it easier to determine the accuracy of the electrical test.