Charging Receptacle Voltage Monitoring for Ion Migration Prevention
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Solution Overview
Problem
Ion migration occurs in charging apparatus receptacles, leading to potential corrosion and deterioration of terminals, which existing technologies do not adequately prevent.
Innovation Solution
A charging apparatus with a receptacle featuring multiple terminals, including a power supply, voltage detectors, and a processor that monitors voltage levels between terminals to detect ion migration and stops voltage or current supply when a threshold is exceeded, preventing further ion migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage or current is continuously supplied to the terminal for charging operation, then charging functionality is maintained, but ion migration occurs leading to terminal corrosion and deterioration
Solution Approach 1:
The patent implements a feedback mechanism where voltage detectors continuously monitor the voltage between terminals, and the controller adjusts the charging operation based on detected voltage levels. When ion migration is detected through voltage changes, the system automatically reduces or stops voltage supply to prevent terminal corrosion, thus maintaining reliability while enabling continuous charging operation through adaptive control.
Solution Approach 2:
The patent applies preliminary action by detecting voltage changes between terminals before significant corrosion occurs. The voltage detectors monitor for early signs of ion migration (voltage deviation from normal levels), and the controller preemptively adjusts charging parameters to prevent terminal deterioration, thereby extending terminal lifespan while maintaining charging functionality.
2Reliability
If voltage supply is stopped to prevent ion migration, then terminal corrosion is prevented, but charging operation is interrupted
Solution Approach 1:
The patent implements periodic action by continuously monitoring terminal voltage at regular intervals during charging operation. The voltage detectors periodically check for ion migration signs, and the controller adjusts charging parameters in periodic cycles rather than continuously stopping charging. This allows charging to proceed with periodic safety checks, preventing corrosion while minimizing interruptions to charging time.
Solution Approach 2:
The patent applies partial action by selectively stopping voltage supply only to affected terminals or reducing voltage to minimal levels necessary for safety monitoring, rather than completely interrupting charging operation. The controller can maintain charging current through unaffected terminals or resume charging at reduced rates, thus protecting terminals from corrosion while minimizing charging time loss.
3Measurement precision
If multiple voltage detectors are added to monitor all terminals, then ion migration detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing voltage detectors that can monitor multiple terminals through selective connection or multiplexing. A single voltage detector can measure voltage between different terminal pairs by switching connections, allowing one detector to perform the function of multiple detectors. This reduces the number of physical components while maintaining the ability to detect ion migration across all terminals with sufficient accuracy.
Solution Approach 2:
The patent implements segmentation by dividing the terminal monitoring into hierarchical levels - monitoring only critical terminal pairs first, then expanding to additional terminals if needed. The system segments the detection task to focus on high-risk terminal combinations (e.g., terminals most susceptible to ion migration based on their function and position), reducing the immediate number of detectors required while maintaining detection accuracy for the most vulnerable areas.
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
Effectively prevents the progression of ion migration and subsequent corrosion in the charging apparatus receptacle, thereby extending the lifespan of the terminals.
Implementation Method 1
Ion migration is a phenomenon during which a metal component moves through a surface or inside of a non-metal medium due to an influence of an electric field
Data Source
AI summary
A charging apparatus includes: a receptacle including terminals; a power supply configured to supply a voltage or a current to a first terminal; a first voltage detector configured to detect a voltage of the first terminal; a second voltage detector configured to detect a voltage of a second terminal at one place, two places or three places away from the first terminal; and a processor. The processor is configured to determine whether the voltage of the second terminal is equal to or higher than a second threshold value during a period in which the voltage of the first terminal is equal to or higher than a first threshold value, and stop supply of the voltage or the current from the power supply to the first terminal in a case in which the voltage of the second terminal is equal to or higher than the second threshold value.


