Socket Switching Circuit for Spark-Free Plug Insertion
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Solution Overview
Problem
Existing sockets do not effectively prevent sparks when a plug is inserted, leading to potential damage and fire hazards, and lack mechanisms to ensure complete insertion and detect unplugging.
Innovation Solution
A safety device for sockets comprising a switching circuit and a detection module that only supplies power when a plug is fully inserted, preventing sparks and electric shocks, and sends a warning signal upon unplugging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is supplied immediately when a plug is inserted into a socket, then power transmission efficiency is improved, but sparks are generated causing safety hazards and carbon accumulation
Solution Approach 1:
The patent applies preliminary action by introducing a detection module that detects plug insertion before power is supplied. The switching circuit remains in an off state initially, and only after the detection module confirms plug insertion does the control module activate the switching circuit to supply power. This preliminary detection and delayed power activation prevents sparks and carbon accumulation while maintaining efficient power transmission.
2Device complexity
If the socket structure is simplified without safety devices, then device complexity is reduced, but sparks and electric shocks cannot be prevented
Solution Approach 1:
The patent introduces a detection module and control module as intermediary components between the plug insertion event and power supply. The detection module detects whether the plug is fully inserted, and the control module processes this information to control the switching circuit. These intermediary safety devices prevent sparks and electric shocks while maintaining relatively simple socket structure.
3Speed
If the socket supplies power without detecting complete plug insertion, then power transmission speed is improved, but electric shocks occur due to exposed metal members
Solution Approach 1:
The patent applies preliminary action by requiring the detection module to confirm complete plug insertion before the control module activates power supply. The switching circuit remains off during the detection phase, ensuring the plug is fully inserted and metal members are not exposed. Only after confirmation does power transmission begin, preventing electric shocks while maintaining acceptable transmission speed.
4Device complexity
If no detection mechanism is installed, then manufacturing cost and device complexity are reduced, but unplugging events cannot be detected for monitoring purposes
Solution Approach 1:
The patent implements feedback by having the detection module continuously monitor plug insertion status and provide information to the control module. When unplugging is detected (plug removal detected), the control module receives feedback and can activate warning signals or notify monitoring systems. This feedback mechanism enables detection of unplugging events while maintaining relatively simple device structure.
Data Source
AI summary
The present invention provides a safety device for socket, which comprises a switching circuit, a control module, and a detection module. The switching circuit is coupled between a supply main and an internal transmission structure of a socket. The control module is coupled to and controls the switching circuit. The detection module is coupled to the control module and outputs a detection signal. The control module controls the turning-on or cutoff of the switching circuit according to the detection signal. When the plug is not inserted into the socket, the control module cuts off the switching circuit. Then the power source from the supply main will not be transmitted to the internal transmission structure of the socket. After the plug is inserted into the socket, the control module turns on the switching circuit. Then the power source from the supply main will be transmitted to the plug via the switching circuit and the internal transmission structure of the socket. Thereby, the sparks can be avoided for preventing danger as well as extending the lifetime of the socket.