Power Tool Multi-Battery Modular Housing Design
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Solution Overview
Problem
Conventional power tools, such as lawn mowers, typically rely on a single battery pack for power, which limits their operational duration and cannot sustain continuous use, failing to meet the increasing usability demands.
Innovation Solution
The power tool design incorporates multiple battery packs to provide extended power supply, with a motor-driven prime mover and a detachable power housing that allows for efficient electricity distribution, ensuring continuous operation without compromising volume or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single battery pack is used to supply power, then the device complexity is reduced, but the operational duration is insufficient for continuous use
Solution Approach 1:
The power supply system is segmented into multiple battery packs instead of using a single battery pack. The housing contains multiple battery pack receiving spaces, allowing independent battery packs to be installed and removed. This segmentation enables extended operational duration while maintaining manageable device complexity through modular design.
2Duration of action of moving object
If multiple battery packs are used to extend operational duration, then the power supply capacity increases, but the weight and volume of the device increase
Solution Approach 1:
The weight is distributed across multiple separate battery packs that can be independently installed. The housing structure includes multiple receiving spaces that accommodate these segmented battery packs, allowing the weight to be distributed rather than concentrated, thereby extending operational duration while managing overall device weight.
Solution Approach 2:
The battery packs are arranged in a specific spatial configuration within the housing, utilizing three-dimensional space efficiently. The receiving spaces are positioned to optimize weight distribution and balance, converting the weight issue from a scalar problem to a spatial distribution problem that can be managed through geometric arrangement.
3Duration of action of moving object
If multiple battery packs are used to extend operational duration, then the power supply capacity increases, but the volume of the device increases
Solution Approach 1:
The battery packs are nested within the housing structure, with each battery pack receiving space integrated into the overall housing design. The battery packs fit within dedicated cavities or compartments in the housing, allowing the power supply capacity to be increased while minimizing the external volume increase of the device.
Solution Approach 2:
The housing structure utilizes vertical and lateral dimensions to accommodate multiple battery packs. The receiving spaces are positioned at different locations within the housing volume, efficiently utilizing three-dimensional space to accommodate increased power capacity without proportionally increasing the device's external dimensions.
4Duration of action of moving object
If multiple battery packs are used to extend operational duration, then the power supply capacity increases, but the weight distribution becomes unbalanced
Solution Approach 1:
The housing structure employs asymmetric positioning of battery pack receiving spaces to achieve balanced weight distribution. The receiving spaces are strategically positioned at different locations within the housing to create a balanced center of gravity, considering the asymmetric arrangement needed to accommodate the functional components of the device while maintaining overall weight balance.
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
This configuration enhances the power tool's operational duration and usability by providing a balanced weight distribution and efficient power supply, ensuring continuous operation without excessive weight or volume increase, thus addressing the limitations of single battery pack systems.
Implementation Method 1
a motor which at least has an output shaft being able to rotate about a first axis
Data Source
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AI summary
The invention discloses a power tool and a lawn mower. They mainly include a functional device and a power device. The functional device is formed with a mounting portion for mounting the power device. The power device includes a prime mover and battery packs detachably coupled with a power housing. The prime mover can be a motor. The power housing is at least provided with an engaging portion allowing the power device to be at least mounted to the functional device, and a coupling portion for providing a space or structure for coupling with the battery packs. When the power device and the functional device constitute a whole through the mounting portion and the engaging portion, the battery packs at least can be detached from the power housing. The power tool of the invention uses multi battery packs to provide power, and the operation is convenient.