Handheld Tool Battery Receptacle Layout for Impact Protection and Cooling
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Solution Overview
Problem
Handheld electric tools, such as garden tools, face challenges in protecting the battery pack from impacts and ensuring effective cooling due to their design, which affects the tool's durability and operational efficiency.
Innovation Solution
The handheld electric tool features a housing with a receptacle that includes a grip section receiving region delimited by two sections of the outer wall in a radial direction, providing protection and allowing for airflow around the battery pack, thus enhancing impact protection and cooling while maintaining a slim and cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the battery pack is completely enclosed within the housing for protection, then impact protection is improved, but cooling efficiency deteriorates due to restricted airflow
Solution Approach 1:
The housing outer wall is segmented into multiple sections along the insertion axis, creating a first section and a second section that are separated by a gap. This segmentation allows the battery pack to be partially protected while maintaining airflow channels for cooling, resolving the contradiction between protection and thermal management.
2Reliability
If the housing is designed with complete enclosure for durability, then robustness is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the battery pack from complete enclosure, allowing it to protrude slightly from the housing. This extraction simplifies the housing structure by eliminating the need for a fully enclosed complex structure, while still providing adequate protection through the segmented design and gap formation.
3Ease of operation
If the battery pack protrudes more from the housing for better accessibility, then ease of operation is improved, but impact protection deteriorates
Solution Approach 1:
The housing provides localized protection at critical areas where the battery pack protrudes, rather than complete enclosure. The segmented design with strategic gap placement protects the battery from lateral impacts while maintaining accessibility, applying local quality protection where most needed.
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 reduces the risk of battery pack damage, improves temperature control, and extends the battery's service life by protecting it from impacts and facilitating airflow, resulting in improved handling and robustness of the electric tool.
Implementation Method 1
the outer wall of the housing is formed in such a manner that it delimits the grip section receiving region in a first section and a second section in a radial direction with respect to the insertion axis
Implementation Method 2
allowing for airflow around the battery pack, thus enhancing impact protection and cooling
Data Source
AI summary
A handheld electric tool has a housing having a receptacle for arranging a replaceable battery pack. The battery pack includes an insertion section and a grip section and can be inserted along an insertion axis into the receptacle. The receptacle includes an insertion receiving region formed to be compatible with the insertion section of the battery pack and a grip section receiving region. The insertion section of the battery pack when inserted into the receptacle is arranged within an outer wall of the housing. The grip section of the battery pack when inserted into the receptacle is arranged outside the outer wall of the housing. The outer wall delimits the grip section receiving region in a first section and in a second section in a radial direction with respect to the insertion axis. A system includes a handheld electric tool and a battery pack.