Battery Pack Power Matching for Multi-Tool Compatibility
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Solution Overview
Problem
Existing electric tools require different power supplies, leading to potential damage when mismatched battery packs are used, necessitating multiple battery packs that are costly and inconvenient.
Innovation Solution
A tool assembly with an identification system that adjusts the battery pack's output power to match the electric tool's requirements, using signal identification devices and structure identification mechanisms to ensure compatibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unique matching between electric tool and battery pack is implemented, then safety and reliability are improved, but device complexity and user inconvenience increase due to needing multiple battery packs
Solution Approach 1:
The battery pack is designed with universal compatibility through an identification system that automatically detects tool power requirements and adjusts output accordingly. The battery pack can serve multiple tools with different power needs by dynamically adapting its output parameters, eliminating the need for multiple dedicated battery packs while maintaining safety and reliability.
Solution Approach 2:
The battery pack dynamically changes its output parameters (voltage, current, power) based on the detected tool requirements. The identification system reads tool identification information and adjusts battery pack output parameters in real-time, allowing a single battery pack to safely power multiple tools with different power specifications.
2Power
If maximum output voltage and current are set for battery pack, then power supply capability is improved, but risk of tool or chip damage increases when mismatched battery packs are used
Solution Approach 1:
The identification system implements a feedback mechanism where the battery pack reads tool identification information, determines the tool's power requirements, and adjusts its output accordingly. This closed-loop feedback ensures the battery pack delivers maximum power when appropriate while preventing damage when tool-battery mismatches are detected.
Solution Approach 2:
The identification system performs preliminary detection of tool identification information before power delivery begins. By detecting and identifying the tool's power requirements in advance, the battery pack can prevent harmful power delivery that would cause tool or chip damage, while still providing maximum power capability when properly matched.
3Reliability
If multiple matching battery packs are carried for different electric tools, then tool performance and reliability are ensured, but cost and convenience deteriorate
Solution Approach 1:
A single battery pack is designed to universally power multiple electric tools with different power requirements. The identification system enables the battery pack to adapt its output to match each tool's specific needs, providing the same reliability and performance assurance as dedicated battery packs would offer, while eliminating the need to carry multiple battery packs.
4Adaptability or versatility
If identification system dynamically adjusts battery pack output power, then compatibility and safety are improved, but device complexity increases
Solution Approach 1:
The identification system replaces complex mechanical matching mechanisms (physical keys, slots, or manual configuration) with electronic identification and automatic parameter adjustment. This substitution reduces the need for multiple physical battery pack designs while achieving the same compatibility goals through software-based identification and control.
Data Source
AI summary
A tool assembly, an electric tool, a battery pack and a method for adjusting power of the tool assembly are provided. A tool assembly includes a battery pack, an electric tool and an identification system. The identification system is disposed in the battery pack and/or the electric tool, and the identification system is configured for matching an output power of the battery pack with a power supply power required by the electric tool after the electric tool is plugged into the battery pack. Alternatively, the identification system is disposed in the battery pack and the electric tool, and the identification system is configured for identifiably assembling a battery pack having an output power with an electric tool having a power supply power matching with the output power of the battery pack.