Battery Charging Station Bidirectional Power Management
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Solution Overview
Problem
Current battery exchange stations for electric vehicles require an uninterruptible power system, can only charge batteries with mains electricity, and become idle when mains electricity is interrupted for a long time, limiting their functionality.
Innovation Solution
A battery charging station with a power bus, power supplying unit, and voltage converting units controlled by a processor that can switch between charging and discharging modes, allowing operation using stored battery power when mains electricity is unavailable, eliminating the need for an uninterruptible power system and enabling continuous service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an uninterruptible power system with idle batteries is installed to prevent interruption of mains electricity, then the reliability of power supply is improved, but the device complexity and cost increase
Solution Approach 1:
The patent makes the battery system perform multiple functions: it serves as both the power source for charging electric vehicles and as the uninterruptible power supply for the charging station itself. The battery management unit enables the system to switch between charging mode (when mains power is available) and discharging mode (when mains power fails), eliminating the need for separate idle batteries while maintaining power supply reliability.
2Ease of operation
If the system is designed to only charge portable batteries with mains electricity, then the ease of operation is improved, but the adaptability to different power conditions deteriorates
Solution Approach 1:
The patent implements a dynamic battery management unit that can automatically switch between different operating modes based on power availability. The system transitions from a static charging-only design to a dynamic system that adapts its operation between charging and discharging modes, enabling it to handle various power conditions including mains power failure scenarios while maintaining simple user interaction.
3Loss of energy
If the system switches to an idle state when portable battery is full, then the energy loss is reduced, but the productivity and service continuity deteriorate
Solution Approach 1:
The patent enables continuous useful action by allowing the system to switch from charging mode to discharging mode when the battery is full or when mains power fails. Instead of entering an idle state, the stored battery power continues to serve the charging station's operational needs, maintaining service continuity and eliminating energy waste associated with idle states while keeping the system productive.
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 maintains operation and provides battery exchange services even during mains electricity interruptions, efficiently managing battery charging and discharging, and dynamically arranging electrical power to prioritize batteries with higher capacity for user needs.
Implementation Method 1
The power supplying unit is coupled to the power bus and is configured to generate a second power according to a first power received from the exterior and transmit the second power to the power bus as a supplying power of the power bus
Implementation Method 2
When the processor controls the first voltage converting unit to operate in a first mode, the first voltage converting unit in the first mode receives the supplying power from the power bus so as to charge the first battery
Implementation Method 3
When the processor controls the first voltage converting unit to operate in a second mode, the first voltage converting unit in the second mode receives the electrical power from the first battery and generates a second mode power towards the power bus, wherein the voltage level of the second mode power is lower than the voltage level of the second power
Data Source
AI summary
A battery charging station includes a power bus, a power supplying unit, a first voltage converting unit and a processor. The power supplying unit receives a first power to generate a second power accordingly and transmits the second power to the power bus as a supplying power of the power bus. The first voltage converting unit is coupled to the power bus and is connected to a first battery removably disposed in the battery station. The processor sets the first voltage converting unit to operate in a first mode or a second mode, the first voltage converting unit in the first mode receives the supplying power from the power bus so as to charge the first battery. The first voltage converting unit in the second mode receives the electrical power from the first battery and generates a second mode power towards the power bus.