Charging Receptacle Automatic Ejection Mechanism
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Solution Overview
Problem
Existing charging systems for chargeable apparatuses risk overcharging due to system misjudgment, which can lead to battery damage, heat generation, deformation, or explosion, posing a safety threat.
Innovation Solution
A charging receptacle and plug system equipped with solenoids and magnets that automatically separate after charging is complete, using a repulsive force to ensure safe disconnection and prevent excessive charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging system relies on the chargeable apparatus system to stop charging, then the charging control is simple, but the safety reliability deteriorates due to potential system misjudgment or failure causing overcharging
Solution Approach 1:
The charging system performs self-service by using the charging current itself to control the solenoid valve, which automatically opens when charging is complete. The charging current generates magnetic field to close the valve during charging, and when current stops, the valve automatically opens without external intervention, making the system self-regulating and highly reliable
Solution Approach 2:
The system implements feedback control where the charging current status directly controls the solenoid valve state. The magnetic field generated by charging current provides continuous feedback to maintain valve closure, and cessation of current automatically triggers valve opening, creating a closed-loop safety mechanism that eliminates misjudgment risks
2Reliability
If automatic ejection mechanism is added to prevent overcharging, then the safety reliability improves, but the device complexity increases due to additional components
Solution Approach 1:
The invention merges the charging control function with the connection/disconnection control function into a single solenoid valve mechanism. The valve serves dual purposes: controlling charging current flow and mechanically maintaining plug-receptacle connection, eliminating the need for separate ejection motors or complex mechanical structures
Solution Approach 2:
The invention replaces complex mechanical ejection systems with an electromagnetic solenoid valve that uses magnetic field to control both electrical current and mechanical connection. The solenoid converts electrical signals directly into mechanical valve movement, simplifying the structure while maintaining reliable automatic disconnection functionality
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 system effectively prevents overcharging by automatically disconnecting the charging receptacle from the plug once the battery is fully charged, reducing the risk of battery damage and ensuring user safety.
Implementation Method 1
The solenoid is connected to the first terminal and a battery of the apparatus to be charged. When the charging receptacle is connected to the charging plug, the solenoid is connected to the charging plug via the first magnet.
Implementation Method 2
ends of the first magnets which are close to the opening of the socket may have a first polarity (e.g. N-pole), and ends of the two solenoids which are close to the corresponding first magnets have a second polarity upon energization (e.g. S-pole). The first polarity is opposite to the second polarity.
Data Source
AI summary
The present disclosure provides a charging receptacle and a charging plug, which cooperate with each other and comprise a receptacle ejection device and a plug ejection device respectively for automatically separating the charging receptacle from the charging plug after charging of the apparatus to be charged is completed. The present disclosure further provides a charging system comprising the charging receptacle and the charging plug as described above.