Electrical Socket Connector Staggered Terminals Reduce Crosstalk
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Solution Overview
Problem
High-speed connectors face significant challenges with signal crosstalk and attenuation due to the miniaturization and integration of signal transmission, requiring effective signal isolation and improved frequency response.
Innovation Solution
The electrical socket connector design incorporates a unique configuration of terminals and a tongue plate with recesses and barriers, vertically aligned contact parts, and a metal casing with flanges and fasteners, which reduces signal crosstalk and enhances high-frequency response by staggering contact parts and using SMT welding legs, and a metal rear cover for anti-electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If signal transmission is miniaturized and integrated to reduce product volume, then productivity and compactness are improved, but signal crosstalk and attenuation increase
Solution Approach 1:
The connector is divided into multiple independent contact parts (first contact parts and second contact parts) arranged in staggered positions. Each contact part is isolated from others through the insulation body structure, preventing signal interference while maintaining compact dimensions. The segmentation of contact parts into front and rear portions with different widths further enhances signal isolation.
Solution Approach 2:
The contact parts are arranged in three-dimensional space with vertical alignment of center lines but offset positions. The first contact parts and second contact parts are positioned at different depths and lateral positions, creating spatial separation that reduces crosstalk while maintaining a compact overall footprint. This multi-dimensional arrangement allows dense integration without compromising signal isolation.
2Reliability
If contact parts are vertically aligned to improve connection stability, then reliability is improved, but signal crosstalk increases due to close proximity
Solution Approach 1:
Each contact part is segmented into a front portion and a rear portion with different widths. The first contact parts have narrower front portions and wider rear portions, while second contact parts have wider front portions and narrower rear portions. This segmentation creates natural isolation zones that reduce electromagnetic coupling while maintaining stable electrical connections.
Solution Approach 2:
The contact parts exhibit asymmetric geometry where the width varies along the length of each contact part. The first and second contact parts have complementary asymmetric shapes that interlock spatially, providing mechanical stability while creating electromagnetic isolation zones that reduce crosstalk between adjacent signals.
3Object-generated harmful factors
If recesses are added to isolate contact parts and reduce crosstalk, then signal isolation is improved, but device complexity increases
Solution Approach 1:
The recesses are integrated directly into the tongue plate structure rather than being separate components. The first recesses and second recesses are formed as part of the insulation body's tongue plate, combining the isolation function with the structural support function in a single integrated component. This reduces the number of separate parts while maintaining effective signal isolation.
Solution Approach 2:
The tongue plate serves multiple functions: it provides mechanical support for the contact parts, creates isolation recesses to reduce crosstalk, and maintains the overall structural integrity of the connector. The recesses simultaneously serve as both mechanical features for contact part positioning and electromagnetic isolation features, reducing overall device complexity.
Data Source
AI summary
An electrical socket connector includes: an insulation body, first terminals, second terminals, and a metal casing. The insulation body includes a basal part and a tongue plate connected to the basal part. The first terminals each include a first contact part and the second terminals each include a second contact part. Each first contact part comprises a first front contact part and a first rear contact part. Each second contact part comprises a second front contact part and a second rear contact part. The tongue plate defines first and second recesses. Each first recess is positioned between two adjacent first front contact parts. Each second recess is positioned between two adjacent second rear contact parts.