Backpack-to-Handheld Battery Charging for Continuous Power Tools
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Solution Overview
Problem
Power tools face challenges in providing continuous power without commercial power sockets, with fuel-powered tools causing environmental pollution and noise, while battery-powered tools suffer from short battery life, especially in outdoor scenarios.
Innovation Solution
A power supply system comprising a backpack battery pack and a handheld battery pack, connected via a DC charging device, allowing for detachable mounting and power transfer between them, along with a carrying device for user portability and a cart for transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If fuel-powered tools are used to achieve long-time continuous work, then the power supply duration is extended, but environmental pollution and noise pollution increase
Solution Approach 1:
The power supply system is segmented into multiple battery packs (handheld and backpack types) that can be independently used or combined. This allows the system to provide extended operation time through multiple battery units while maintaining the environmental benefits of electric power tools.
Solution Approach 2:
The battery packs are designed with universal compatibility across different power tool types. A single battery pack can be used with multiple different tools, and the system can adapt to various power requirements, providing both extended operation and environmental friendliness.
2Duration of action of moving object
If battery packs with sufficient electric quantity are used to meet long-time work requirements, then the power supply duration is extended, but the device complexity and cost increase
Solution Approach 1:
Instead of using a single large-capacity battery pack, the system divides power storage into multiple smaller battery packs that can be used individually or combined. This segmentation reduces the complexity of individual battery units while achieving extended operation through multiple units.
Solution Approach 2:
The system enables quick swapping of battery packs between tools and charging stations. Used battery packs can be rapidly replaced with charged ones, and the discarded packs are immediately recovered for recharging, maintaining continuous operation without requiring oversized batteries.
3Duration of action of moving object
If a single large-capacity battery pack is used to power all tools, then the power supply duration is extended, but the adaptability to different tool types decreases
Solution Approach 1:
The battery pack system is segmented into different types (handheld and backpack) with varying capacities, allowing selection of appropriate battery sizes for different tool requirements while maintaining extended operation capability through multiple units.
Solution Approach 2:
The battery packs are designed with universal mounting interfaces and electrical connections that allow the same battery pack type to power multiple different tool types. This universality ensures both extended operation duration and broad adaptability across the power tool system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous power supply for power tools, reduces environmental impact, and minimizes tool weight and cost by allowing interchangeable battery packs, enhancing user convenience and efficiency.
Implementation Method 1
the DC charging module is configured to receive electric energy from the input interface, convert the electric energy and transmit the electric energy to the output interface
Data Source
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AI summary
The present application relates to a power supply system, comprising a battery pack system and an energy supply system; the battery pack system includes a backpack battery pack and a handheld battery pack, the backpack battery pack is configured to be detachably mounted to a first type of power tool to supply power thereto, and the handheld battery pack is configured to be detachably mounted to a second type of power tool to supply power thereto; wherein, the backpack battery pack is configured to be carried by a user; the energy supply system includes a DC charging device, and the DC charging device is configured to convert electric energy of the backpack battery pack and transmit the electric energy to the handheld battery pack, so that the backpack battery pack charges the handheld battery pack.