Leakage Protective Socket with Capacitor Backup for Power Interruption Safety
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Solution Overview
Problem
Conventional leakage protective sockets fail to ensure safety due to loss of magnetic force during power interruptions, leading to ineffective disconnection of electrical circuits and potential safety hazards, especially when multiple receptacles are connected.
Innovation Solution
A leakage protective socket design incorporating a coil continuous power-supply suction release mechanism, featuring a protector device with a connection maintaining device, connecting device, and locking device, which uses elastic sheets and magnetic forces to control circuit opening and closing, ensuring safe disconnection and reconnection based on power availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional leakage protector is used without continuous power supply mechanism, then the device structure is simpler, but the safety reliability deteriorates during power interruptions
Solution Approach 1:
The patent applies preliminary action by pre-charging a capacitor through a rectifier bridge during normal operation. This stored electrical energy is prepared in advance to power the solenoid valve during power interruptions, ensuring the valve remains closed and maintains circuit disconnection without requiring continuous external power supply.
Solution Approach 2:
The patent introduces a capacitor as an intermediary energy storage device between the power supply and solenoid valve. This capacitor acts as a mediator that bridges the gap during power interruptions, maintaining the magnetic field in the solenoid valve when external power is unavailable, thus preserving safety functionality.
2Adaptability or versatility
If multiple receptacles are connected in parallel, then the adaptability and functionality are improved, but the risk of electrical leakage and safety hazards increases
Solution Approach 1:
The patent extracts the leakage protection function into a separate, dedicated module with its own control circuitry and solenoid valve mechanism. This independent protection system monitors and controls each circuit separately, preventing leakage in one receptacle from affecting others while allowing multiple receptacles to operate simultaneously.
Solution Approach 2:
The patent implements feedback through leakage detection circuits that continuously monitor the electrical state of each receptacle. When leakage is detected, the system automatically triggers the solenoid valve to close the circuit, providing real-time feedback-based protection that scales to multiple receptacles without increasing overall risk.
3Reliability
If a coil continuous power-supply suction release mechanism is implemented, then the circuit disconnection reliability is improved during power loss, but the energy consumption increases
Solution Approach 1:
The patent applies periodic action by using an intermittent power supply mode for the capacitor charging circuit. The rectifier bridge charges the capacitor in periodic cycles during normal operation, and the capacitor then discharges periodically during power interruptions to maintain the solenoid valve, reducing overall energy consumption compared to continuous power supply.
Solution Approach 2:
The patent uses a capacitor with limited energy storage capacity that is intentionally designed to be depleted during power interruptions. This 'short-living' energy storage approach is more energy-efficient than maintaining continuous power supply, as the capacitor provides just enough energy to maintain safety function until power is restored.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides stable and reliable electrical connections, effectively preventing safety hazards by ensuring circuit disconnection during power loss and reconnection upon restoration, expanding the scope of application to multiple receptacle connections.
Implementation Method 1
The pressing block spring in a compressed state is disposed between the upper pressing block and the lower pressing block. When the pressing rod is abutted against the elastic sheet, an elastic force of the pressing block spring makes the pressing rod maintain a stable force on the elastic sheet.
Implementation Method 2
The connection maintaining device includes a first iron core disposed longitudinally, the first iron core is used for magnetic adsorption coordination with the movable pressing plate. The connecting device is provided with the second iron core extending in a transverse direction
Data Source
AI summary
The disclosure discloses a leakage protective socket, relating to the technical field of electrical equipment protection. The leakage protective socket includes: a socket housing, and a leakage protector and an electrical connection portion arranged in the socket housing. The socket housing includes a support frame for fixing the electrical connection portion, a base for fixing the leakage protector, and a power socket for connecting an external power supply. One end of the electrical connection portion is provided with a wiring end, and the other end of the electrical connection portion is provided with at least one plug-in end. The leakage protector controls the opening and closing of a circuit between the power socket and the wiring end.