Battery Pack Control for Simultaneous Tool and 3C Device Power
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Solution Overview
Problem
Battery packs for power tools often have limited functionality, as the electrical device interface and 3C device interface cannot operate simultaneously due to safety and power management concerns, limiting their convenience and applicability in meeting the increasing demand for fast charging and power supply to 3C devices.
Innovation Solution
A battery pack with a control module that detects parameters of connected electrical and 3C devices, using a switch module to enable or disable the 3C interface based on device types and power requirements, allowing simultaneous charging and discharging or power supply to both interfaces safely and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both electrical device interface and 3C device interface are provided on the battery pack, then user convenience and applicability are improved, but safety and power management become problematic due to inability to operate simultaneously
Solution Approach 1:
The patent implements dynamic switching between interface operations using a switch module controlled by a control unit. The system dynamically adjusts which interface (electrical device interface or 3C device interface) is active based on real-time detection of device parameters and charging/discharging states, ensuring safe simultaneous operation of both interfaces while maintaining versatility
Solution Approach 2:
The control unit continuously detects parameters from both interfaces (voltage, current, device type) and uses this feedback information to control the switch module. This closed-loop feedback mechanism ensures that the battery pack safely manages power distribution when both interfaces are connected, resolving the safety concern while maintaining adaptability
2Ease of operation
If electrical device interface and 3C device interface operate simultaneously, then user convenience is improved, but power management and charging/discharging control become complex
Solution Approach 1:
The switch module acts as an intermediary between the cell set and the two interfaces, controlled by the control unit. This intermediary component simplifies power management by centrally coordinating which interface receives power from the cell set at any given time, reducing the complexity of managing simultaneous operations while improving user convenience
3Reliability
If switch module is added to control 3C interface operation, then safety and power management are improved, but device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it detects parameters from both interfaces, determines device types, controls the switch module, and manages charging/discharging operations. By making the control unit multi-functional, the patent reduces overall device complexity while improving power management safety through the added switch module
Data Source
AI summary
The present application relates to a battery pack and a charging and discharging control method thereof. The battery pack includes a first interface, a second interface, a switching module, and a control module. The control module measures the electrical device parameter of a device and a 3C device parameter, controls the charging and discharging of the electrical device according to the electrical device parameter, and controls the switching module according to the electrical device parameter and/or the 3C device parameter so as to perform control to permit or prohibit charging and discharging of the 3C device, whereby the first interface and the second interface can achieve conditional discharging and charging, or simultaneous discharging, or simultaneous charging.