Plug Connector Decoupling Detection via Mate-Last Break Sequence
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Solution Overview
Problem
Existing electrical plug connectors face challenges in detecting decoupling efficiently, leading to potential electric arc formation when DC voltage is applied, which can be dangerous and cause damage.
Innovation Solution
The implementation of a 'first mate-last break' concept in plug connectors, where communication lines are disconnected first during unplugging, allowing for monitoring of the communication line to detect decoupling and promptly terminate power supply, preventing electric arc formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If DC voltage is applied to the plug connector, then power supply capability is improved, but electric arc formation occurs during decoupling which causes damage and safety hazards
Solution Approach 1:
The communication contacts are designed to disconnect before the power contacts during the unplugging process. This preliminary action allows the system to detect decoupling through the communication line before the power supply is interrupted, enabling timely termination of voltage supply to prevent electric arc formation at the power contacts
Solution Approach 2:
The system monitors the communication line to detect when decoupling occurs. This feedback mechanism triggers the power supply termination sequence, creating a closed-loop control system that responds to the actual connection state to prevent harmful electric arcs while maintaining power supply when connected
2Measurement precision
If communication contacts disconnect first during unplugging, then detection of decoupling is improved, but the unplugging process becomes more complex
Solution Approach 1:
The communication contacts serve dual functions: they enable data communication between devices and act as decoupling detection sensors. By utilizing the existing communication line for both purposes, the system achieves precise decoupling detection without adding separate sensing mechanisms, thereby avoiding increased structural complexity
Solution Approach 2:
The connector is segmented into communication contacts and power contacts with different disconnection sequences. This segmentation allows the communication contacts to serve as early indicators of decoupling, providing detection capability while maintaining a relatively simple overall structure through functional differentiation rather than adding complex detection hardware
Data Source
AI summary
A technique is provided for detecting decoupling of a first connector part, connected to a first device, of an electrical plug connector from a second connector part, connected to a second device, of the electrical plug connector. A corresponding method, a corresponding apparatus, a corresponding electrical plug connector as well as the first connector part and the second connector part of the plug connector, a corresponding device and a computer program product are stated.