Battery Switching Topology for Series Charging and Parallel Discharge
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Solution Overview
Problem
Existing battery systems are limited by single battery capacity and are mainly applicable to restricted usage scenarios due to their limited power supply capabilities.
Innovation Solution
A battery control system comprising multiple battery components and switch units, controlled by a first control unit to form series charging paths or parallel discharging paths in response to charging or discharging control signals, enabling high voltage and large current charging and efficient power supply to loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single battery is used to power electronic devices, then the device structure is simple, but the power supply capacity is limited and applicable scenarios are restricted
Solution Approach 1:
The battery system is segmented into multiple independent battery components (first battery component and second battery component) instead of using a single battery. This segmentation allows each battery component to operate independently or in combination, thereby increasing the overall power supply capacity while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The battery system is designed to perform multiple functions by switching between different connection modes (series connection for high voltage, parallel connection for high current) to adapt to various usage scenarios. This multi-functionality allows the same battery components to serve different power supply needs without requiring separate battery systems for each scenario.
2Power
If multiple battery components are used to increase power supply capacity, then the power supply capability is enhanced, but the system complexity increases
Solution Approach 1:
The battery system employs dynamic switching between series and parallel connection modes through switch units controlled by a control unit. This dynamic reconfiguration allows the system to adapt its internal structure based on real-time power supply requirements, optimizing performance while managing complexity through automated control rather than fixed complex wiring.
Solution Approach 2:
Switch units and a control unit are introduced as intermediary components to manage the connection between multiple battery components and the load. These intermediaries simplify the overall system architecture by providing a centralized control mechanism that manages the complexity of multiple battery connections, making the system easier to control and monitor.
3Productivity
If battery components are arranged in series for charging, then high voltage direct charging is achieved improving charging efficiency, but the voltage may be too high for direct power supply to loads
Solution Approach 1:
The system dynamically switches between series connection mode during charging (to achieve high voltage direct charging and improved charging efficiency) and parallel connection mode during power supply to loads (to provide appropriate low voltage). This dynamic reconfiguration resolves the voltage compatibility issue while maintaining high charging efficiency when needed.
Solution Approach 2:
The battery system periodically switches between different connection configurations based on operational requirements - series connection during charging phases and parallel connection during discharge phases. This periodic switching allows the system to optimize for charging efficiency during charge cycles and for voltage compatibility during discharge cycles.
Data Source
AI summary
A battery control system, comprising: a number of battery components used for storing electric energy and supplying power for a load; a number of switch units connected to a number of battery components to form a charge/discharge branch and used for turning on or off the charge/discharge branch where the battery components are located; and a first control unit connected to a number of switch units separately and used for receiving a charge control signal to control the on/off of a number of switch units so that a number of switch units is connected in series to form a serial charge branch, and used for receiving a discharge control signal to control the on/off of a number of switch units so that a number of battery components is connected in parallel to form a parallel discharge branch.