Multi-Voltage Battery Pack Layout for Cross-Voltage Tool Compatibility
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Solution Overview
Problem
Existing electric device systems with voltage switching type battery packs are cumbersome due to the need to handle multiple battery packs for different voltages, and they are large and difficult to manage, limiting their convenience and compatibility with a wide range of voltages.
Innovation Solution
An electric device system featuring a three-voltage battery pack capable of outputting low, intermediate, and high voltages, with specific configurations for each device main body to connect and utilize these voltages efficiently, including low/intermediate-voltage and intermediate/high-voltage battery packs that can be easily attached to various device main bodies without requiring special operation for voltage switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple battery packs are provided for different voltages, then a wide range of voltages can be dealt with, but the device complexity and handling difficulty increase
Solution Approach 1:
The battery pack is designed with multiple output terminals (first output terminals and second output terminals) that can provide different voltages (intermediate voltage and high voltage) from a single pack. The device main body includes switching circuitry that automatically selects the appropriate voltage based on device requirements, making one battery pack universal for multiple voltage needs.
Solution Approach 2:
Multiple cell units are connected in series to generate high voltage, while the same cell units can be accessed through different terminal configurations to provide intermediate voltage. This merging of multiple voltage sources into a single battery pack structure eliminates the need for separate battery packs for different voltages.
2Adaptability or versatility
If multiple battery packs are provided for different voltages, then a wide range of voltages can be dealt with, but the ease of operation deteriorates
Solution Approach 1:
The voltage switching is performed automatically by the device main body's control circuitry based on the detected device requirements. The user simply attaches the battery pack without needing to manually switch voltages or select between different battery packs. The system self-adjusts the output voltage based on the connected device's needs.
3Adaptability or versatility
If multiple battery packs are provided for different voltages, then a wide range of voltages can be dealt with, but the quantity of components increases
Solution Approach 1:
A single battery pack design incorporates multiple output terminal configurations (first output terminals for high voltage, second output terminals for intermediate voltage) allowing one battery pack to replace multiple voltage-specific battery packs. The same physical battery pack can serve devices with different voltage requirements.
4Adaptability or versatility
If voltage switching is implemented, then compatibility with different voltages is improved, but the device complexity increases
Solution Approach 1:
The voltage switching function is implemented through electronic control circuitry rather than mechanical switches or manual configurations. The control circuit automatically detects the connected device's voltage requirements and electronically switches between different terminal configurations, replacing complex mechanical switching mechanisms with simpler electronic control.
Data Source
AI summary
The present invention achieves an electric device system having: a low/intermediate-voltage battery pack 201 capable of outputting a low voltage (18 V) or an intermediate voltage (36 V); an intermediate/high-voltage battery pack 301 capable of outputting the intermediate voltage or a high voltage (72 V); a low-voltage device main body 1 configured to be connected to the low/intermediate-voltage battery pack and supplied with the low voltage; an intermediate-voltage device main body 31 configured to be connected to the low/intermediate-voltage battery pack and the intermediate/high-voltage battery pack and supplied with the intermediate voltage; and a high-voltage device main body 61 configured to be connected to the intermediate/high-voltage battery pack and supplied with the high voltage.