Multi-Channel Battery Current Switching for High-Load Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing charging and discharging devices for batteries have limited current supply efficiency due to the restricted maximum current that can be supplied through each channel, which hinders efficient charging and discharging processes.
Innovation Solution
A charging and discharging device that includes a switching portion to connect or block channels electrically and a mainboard to control current supply based on predefined recipes, allowing for the combination of currents from multiple channels to exceed the maximum supply current of one channel, thereby efficiently charging and discharging batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the maximum current supplied to each channel is limited, then the device complexity is reduced, but the productivity of charging and discharging operations decreases
Solution Approach 1:
The patent merges multiple channels (first channel and second channel) to supply current to a single battery when the required current exceeds the maximum current of one channel. The switching portion electrically connects these channels in parallel, allowing their currents to combine and exceed the individual channel limits, thus resolving the contradiction between limited channel current capacity and high productivity requirements.
Solution Approach 2:
The patent implements dynamic current allocation where the switching portion can adaptively connect or disconnect channels based on real-time current requirements. The mainboard dynamically determines whether to use a single channel or combine multiple channels depending on the charging/discharging recipe current values, enabling the system to optimize between simplicity and performance as needed.
2Productivity
If multiple channels are combined to supply higher current, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring switching portions for each channel that can automatically connect or disconnect based on predetermined conditions. The mainboard compares the required current values from charging/discharging recipes against the maximum current capabilities of individual channels in advance, and proactively activates the appropriate channel combinations before the actual charging/discharging operation begins, thus managing complexity through automation rather than manual intervention.
3Productivity
If the current supply capacity of each channel is increased, then the productivity is improved, but the loss of energy increases due to higher current demands
Solution Approach 1:
The patent segments the current supply function across multiple channels, each operating within their designed current limits. Instead of requiring a single high-current channel that would suffer from increased energy losses, the system divides the total current requirement among multiple lower-current channels that operate more efficiently, reducing overall energy loss while maintaining high productivity through parallel operation.
Data Source
AI summary
A charging and discharging device according to the present disclosure includes: a switching portion electrically connecting or blocking a first channel electrically connected to a first battery and a second channel electrically connected to a second battery; and a mainboard controlling a current supplied to the first channel according to a current value of a first charging and discharging recipe and controlling a current supplied to the second channel according to a current value of a second charging and discharging recipe, and when a current value of the first charging and discharging recipe exceeds a maximum value of a current supplied to the first channel, the mainboard controls the switching portion to electrically connect the first channel and the second channel to supply a current to the first battery through the first channel and the second channel.