Impact Tool Exposed Region Cooling Design
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Solution Overview
Problem
Existing impact tools face challenges in cooling performance due to the complete coverage of the inner housing by the outer housing, which restricts heat dissipation from the motor and driving mechanism.
Innovation Solution
The impact tool design includes an exposed region on the body housing that is not covered by the outer housing, allowing for heat dissipation and improved cooling performance, with features such as a dynamic vibration reducer and a mechanical vibration mechanism to reduce vibrations during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer housing entirely covers the body housing, then the structural integrity and protection are improved, but the cooling performance deteriorates
Solution Approach 1:
The outer housing is divided into multiple sections: a covered region that provides protection and an exposed region that allows heat dissipation. This segmentation enables simultaneous achievement of structural integrity and cooling performance by separating the protective function from the thermal management function.
Solution Approach 2:
Different regions of the outer housing are designed with different properties: the covered region provides full enclosure for protection, while the exposed region provides open access for heat dissipation. This local differentiation allows each region to optimize its specific function without compromising the other.
2Shape
If the outer housing entirely covers the body housing, then the aesthetic appearance is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
The outer housing is segmented into aesthetically pleasing covered portions and functional exposed portions. The exposed region is strategically positioned to maintain visual appeal while providing necessary heat dissipation pathways from the motor and driving mechanism.
3Stability of the object's composition
If the outer housing is fixed to the body housing, then the structural stability is improved, but the vibration reduction capability deteriorates
Solution Approach 1:
The connection between outer housing and body housing is made dynamic rather than rigid. The elastic element allows relative movement and vibration absorption while maintaining structural connection, transforming the static rigid connection into a dynamic system that can adapt to vibrational forces.
Solution Approach 2:
An elastic element is introduced as an intermediary between the outer housing and body housing. This intermediary component absorbs vibrations and mechanical shocks, reducing the transmission of harmful vibrations while maintaining the structural connection and stability of the overall assembly.
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
The design enhances cooling performance by facilitating heat dissipation and reduces vibrations, resulting in improved operational efficiency and maintainability of the tool.
Implementation Method 1
an elastic element that is disposed between the body housing and the outer housing. The outer housing is mounted to the body housing via the elastic element so as to be allowed to move with respect to the body housing in the axial direction of the tool accessory
Implementation Method 2
the body housing has an exposed region in which at least part of a region of the body housing corresponding to at least one of the motor and the driving mechanism is not covered by the outer housing... heat which is generated when the motor and the driving mechanism are driven is easily dissipated to the outside through the exposed region
Data Source
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AI summary
In is an object of the invention to provide an impact tool improved in cooling performance for cooling a motor or a driving mechanism part. The representative impact tool has a motor 110, a driving mechanism 120, 140, a body housing 103 and a handle 109, and part of the motor 110 and part of the handle 109 are disposed on an axis of a tool accessory. The impact tool has an outer housing 105 that is disposed to cover the outside of the body housing 103 and connected to the body housing 103 via an elastic element 219 so as to be allowed to move with respect to the body housing 103 in an axial direction of the tool accessory, and the handle 109 is integrally connected to the outer housing 105. The body housing 103 has an exposed region 113 in which at least part of a region of the body housing 103 corresponding to at least one of the motor 110 and the driving mechanism 120, 140 is not covered by the outer housing 105.