Segmented Battery Housings for Powered Tool Heat Dissipation
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Solution Overview
Problem
Current battery-powered tools face issues with heat dissipation and ergonomic design, leading to premature fatigue and chronic overuse injuries due to inadequate heat management and uneven weight distribution, which affects tool performance and user comfort.
Innovation Solution
A powered tool device with two battery housings positioned to maximize air exposure for improved heat dissipation and an ergonomic design allowing the user to maintain a neutral, comfortable position, reducing fatigue and enabling increased battery capacity or power options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single large battery pack is used to provide sufficient power for gardening tasks, then power longevity is improved, but heat dissipation deteriorates due to concentrated heat generation and limited surface area exposure
Solution Approach 1:
The battery system is divided into multiple separate battery packs (first battery pack, second battery pack, etc.) instead of using a single large battery pack. Each battery pack has its own housing and can be independently positioned to maximize air exposure. This segmentation allows heat to dissipate from multiple separate surfaces rather than concentrating heat in one location, while still providing sufficient total power capacity for gardening tasks.
2Ease of operation
If the battery is placed in a backpack housing to improve ergonomics, then weight distribution is improved, but heat dissipation deteriorates due to reduced air exposure and body heat insulation
Solution Approach 1:
Instead of consolidating all batteries in a single backpack housing, the system uses multiple separate battery packs that can be distributed across the user's body (e.g., one on each hip or shoulder). This segmentation maintains ergonomic weight distribution while maximizing the surface area of each individual battery pack exposed to air, preventing the heat trapping effect of a enclosed backpack housing.
Solution Approach 2:
The battery packs are positioned in three-dimensional space across the user's body rather than being confined to a single backpack location. This spatial distribution allows each battery pack to access air from multiple directions and prevents body heat from insulating the batteries, as the packs can be positioned where air flow is maximized.
3Device complexity
If all battery weight is supported by one arm to simplify design, then device complexity is reduced, but user comfort deteriorates due to premature fatigue and chronic overuse injury
Solution Approach 1:
The total battery weight is segmented into multiple separate battery packs that can be distributed across different parts of the user's body (e.g., both hands, hips, or shoulders). This segmentation transforms a single-point weight burden into a distributed load, improving ergonomics and reducing fatigue while maintaining relatively simple individual battery pack designs.
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
Enhanced heat dissipation extends battery life and runtime, while the ergonomic design reduces user fatigue and allows for more efficient tool operation with increased power or extended use.
Implementation Method 1
the additional surface area exposed to the surrounding air increases the rate of heat dissipation significantly, allowing the batteries to run cooler
Implementation Method 2
the additional surface area exposed to the surrounding air increases the rate of heat dissipation significantly
Data Source
AI summary
A powered tool device may include a first handle grip coupled to a first handle bar and a second handle grip coupled to a second handle bar. A first battery may be coupled to the first handle bar, and a second battery may be coupled to the second handle bar. The two handle bars, handle grips, and their respective batteries may be separated from each other via a separation structure that may separate the two handle bars by a distance which may allow portions of the body of a user to be between the handle bars. Optionally, the separation structure may be moved between an extended position and a compacted position.