Power Tool Dust Collection Box With Sealed Detachable Filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand-held power tools lack effective dust collection systems that can be easily retrofitted and efficiently manage dust and debris during operation, leading to potential damage from dust exposure and increased maintenance due to inadequate sealing and filtration.
Innovation Solution
A retrofittable dust collection system for hand-held power tools featuring a detachable dust collection box with a filter unit, sealed by elastic sealing elements, and a fan unit for air flow generation, along with a damping unit to mitigate vibrations and enhance durability, and a sensor system for monitoring dust levels and air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a dust collection system is added to hand-held power tools, then dust capture capability is improved, but device complexity increases
Solution Approach 1:
The dust collection system is divided into separate modular components: a dust collection box, a filter unit, and sealing elements that can be independently attached to the power tool housing. This segmentation allows the dust collection functionality to be added without redesigning the entire tool, thus improving dust capture while minimizing the increase in overall device complexity.
Solution Approach 2:
The filter unit is nested within the dust collection box, with the sealing elements integrated into the connection interfaces between components. This nesting arrangement consolidates multiple functions (dust collection, filtration, and sealing) into a compact integrated assembly that attaches to the existing tool housing, reducing the space and complexity overhead.
2Object-affected harmful factors
If a filter unit is integrated into the dust collection box, then dust filtration is improved, but manufacturing complexity increases
Solution Approach 1:
The filter unit is designed as a separate detachable component from the dust collection box, allowing it to be manufactured independently using optimized processes for filtration media. This segmentation enables specialized filter manufacturing techniques without affecting the production of the main dust collection box, thus improving dust filtration while managing manufacturing complexity.
Solution Approach 2:
The filter unit incorporates elastic sealing elements with specific material properties (durometer, cross-section geometry) that are optimized for creating effective seals at the connection interfaces. By carefully selecting and standardizing these physical parameters, the sealing function is enhanced without requiring complex manufacturing processes, balancing filtration performance with ease of manufacture.
3Reliability
If elastic sealing elements are added to seal interfaces, then sealing performance is improved, but device complexity increases
Solution Approach 1:
Elastic sealing elements in the form of flexible rings or profiles are integrated into the connection interfaces between the dust collection box, filter unit, and housing. These flexible sealing elements deform to accommodate manufacturing tolerances and assembly variations, creating reliable seals without requiring complex mechanical sealing mechanisms. The flexibility of these thin film elements provides effective sealing while adding minimal structural complexity.
4Ease of repair
If detachable connections are used for the dust collection box and filter unit, then ease of maintenance is improved, but connection reliability may worsen
Solution Approach 1:
The dust collection box and filter unit are connected through detachable interfaces with standardized connection elements that enable easy separation for maintenance. These segmented connections are designed with robust locking mechanisms and integrated sealing elements that maintain connection reliability during operation while allowing quick detachment when the dust collection box needs emptying or the filter unit requires cleaning.
Solution Approach 2:
The connection elements incorporate elastic sealing elements with optimized material properties (durometer, cross-section geometry) that provide sufficient sealing force to maintain connection reliability during operation. The sealing elements are designed to deform elastically to compensate for wear and assembly variations, ensuring reliable connections that can be repeatedly attached and detached for maintenance without compromising sealing performance.
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 system effectively captures dust, protects sensitive electronics, extends the accessory device's service life, and provides real-time monitoring of dust levels and air flow, ensuring efficient operation and reduced maintenance.
Implementation Method 1
The accessory device has a fan unit with an electric motor and a fan element to generate an airflow
Implementation Method 2
the dust is filtered from the airflow by means of the filter unit
Implementation Method 3
The sealing element is advantageously designed to be elastic in order to seal manufacturing-related gaps at the interfaces
Implementation Method 4
damping unit that is integrally formed with the housing of the accessory device to dampen the vibrations caused by the electric motor
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to an accessory device for a hand-held power tool (10), in particular for a hand-held power tool with a percussive mechanism, comprising a dust collection box (110), said dust collection box (110) having a housing (115), which is designed to be connectable to a housing (102) of the accessory device via a first securing unit (113), and a filter unit (146), which is designed to filter an airflow, wherein the filter unit (146) is designed to be connectable to the housing (115) of the dust collection box via a second securing unit (162). The filter unit (146) has a first sealing element (152) arranged on the dust collection box side and a second sealing element (154) arranged on the accessory device side, and the filter unit (146) can be sealed from the housing (115) of the dust collection box and the housing (102) of the accessory device via said sealing elements.