SFP-DD Connector Guide Grooves Prevent Mating Errors
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Solution Overview
Problem
The existing SFP and SFP-DD connectors are not compatible, leading to improper insertion issues due to differences in the number of terminals and connection pads, resulting in incomplete electrical connections when SFP-DD plugs are inserted into SFP receptacles.
Innovation Solution
The design incorporates guide grooves and guide blocks in the receptacle and plug assemblies, ensuring that the plug can only be properly mated with a receptacle having corresponding guide grooves, preventing improper insertion by aligning guide blocks with guide grooves along the mating direction, and utilizing a leaf spring and lock mechanism for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the SFP-DD plug is inserted into an SFP receptacle without corresponding guide grooves, then the physical insertion is simplified, but improper insertion occurs leading to incomplete electrical connections
Solution Approach 1:
Guide grooves are pre-formed in the SFP-DD receptacle structure before insertion occurs. These guide grooves actively prevent the guide blocks of the plug from entering incorrect positions, providing preliminary anti-action against improper insertion before electrical connection can occur, thus ensuring connection integrity
2Reliability
If guide grooves and guide blocks are added to prevent improper insertion, then compatibility control is improved, but the device structure becomes more complex
Solution Approach 1:
The guide block structure is segmented into distinct components integrated with the plug housing, allowing for modular manufacturing and assembly. This segmentation reduces overall structural complexity while maintaining the reliability function of preventing improper insertion between SFP-DD and SFP connectors
Data Source
AI summary
The present disclosure discloses an electrical connection device and a plug assembly, the electrical connection device comprises a receptacle assembly and a plug assembly. The receptacle assembly comprises a cage and a connector. The plug assembly comprises an outer housing and a communication module provided in the outer housing. The outer housing has a main body which can be inserted into the cage along the mating direction to be mated with the connector. The receptacle assembly is provided with at least one guide groove extending along the mating direction, and the outer housing of the plug assembly is provided with at least one guide block protruding from the main body to correspond to the at least one guide groove, when the plug assembly is mated with the receptacle assembly, the at least one guide block enters into the corresponding guide groove along the mating direction.