Retractable Charge Terminal for Automated Power Management
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Solution Overview
Problem
Intelligent display products such as intelligent picture frames and smart albums require manual user intervention to check and manage charging, as there is no automated mechanism to detect low power levels or disconnect the charger once fully charged, leading to inefficiencies and user inconvenience.
Innovation Solution
A charger with a base plate, a first charge terminal that switches between extension and retraction positions, and a control circuit that manages the charge terminal's state based on pressure detection, along with a movement controller in the electronic device to automatically release or stow the charging cable based on power levels, ensuring seamless charging and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual charging management is implemented, then device compatibility and simplicity are maintained, but user convenience and automation level deteriorate
Solution Approach 1:
The charging system automatically detects the electronic device's power level and performs charging operations without user intervention. The control circuit monitors battery status and the charge terminal automatically connects or disconnects based on charging state, enabling the system to serve itself rather than requiring manual user management.
Solution Approach 2:
The control circuit continuously monitors the electronic device's power level through feedback signals and adjusts the charging cable position accordingly. When power is sufficient, the system receives feedback and automatically retracts the charging cable; when power is low, it automatically extends the cable to initiate charging.
2Productivity
If automated charging detection is implemented, then charging efficiency is improved, but device complexity and manufacturing cost worsen
Solution Approach 1:
The control circuit automatically performs power level detection and charging management without requiring external control systems. The charge terminal itself participates in the detection process by monitoring its own connection state and power transmission status, enabling automated charging decisions through self-monitoring capabilities.
Solution Approach 2:
The control circuit serves multiple functions: it detects power levels, controls the charge terminal position, monitors charging status, and manages cable retraction. By consolidating these functions into a single control unit, the system achieves high charging efficiency without proportionally increasing overall device complexity.
3Extent of automation
If charge terminal automatically retracts when fully charged, then user intervention is eliminated, but reliability and risk of disconnection worsen
Solution Approach 1:
The control circuit continuously monitors charging status through feedback signals from the electronic device. When the device indicates full charge, the control circuit receives this feedback and automatically actuates the charge terminal to retract. This feedback-based control ensures the system only disconnects when appropriate, maintaining reliability while achieving automation.
Solution Approach 2:
The control circuit prepares for automatic disconnection by continuously monitoring power levels and predicting when charging will be complete. Before actual disconnection occurs, the system performs preliminary detection and verification to ensure safe and reliable automatic retraction, preventing premature or erroneous disconnections.
Data Source
AI summary
The present disclosure relates to the technical field for charging an electrical appliance and provides a charger. The charger includes a base plate; and a first charge terminal and a control circuit disposed on the base plate. When the first charge terminal is connected with a charge plug, the first charge terminal switches from an extension position to a retraction position. The control circuit is configured to control the first charge terminal to be on-state when the first charge terminal is in the retraction position.