Asymmetric Dust Collection Box Layout to Prevent Filter Clogging
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Solution Overview
Problem
Existing power tools with dust collection boxes are either unwieldy and difficult to handle due to large size or have filters that quickly clog when used on surfaces like floors or ceilings, leading to reduced productivity and inconvenience.
Innovation Solution
A power tool design with an asymmetric dust collection box where the inlet is predominantly on one side and the filter on the other, allowing dust to be directed away from the filter, preventing clogging and enabling a compact, efficient dust collection system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction channel is guided along the tool on one side of the power tool, then good extraction performance is achieved, but the dust collection box becomes very large and unwieldy
Solution Approach 1:
The dust collection box is designed with an asymmetric internal structure where the suction channel and filter are positioned on opposite sides of the tool axis. The inlet is arranged predominantly on one side while the filter is arranged predominantly on the other side, creating an asymmetric flow path that optimizes both extraction performance and compact dimensions
2Ease of manufacture
If the filter is located on a front or rear wall of the dust collection box, then the design is simple, but dust collects on the filter when working on floors or ceilings causing rapid clogging
Solution Approach 1:
The filter is repositioned from a traditional front or rear wall location to a lateral position on the dust collection box. This dimensional change in filter placement allows dust-laden air to enter through the inlet on one side and be filtered on the opposite side, preventing dust accumulation on the filter surface during overhead or floor work
3Ease of operation
If the dust collection box is made compact and handy, then ease of handling is improved, but the suction channel may become longer and reduce extraction performance
Solution Approach 1:
The asymmetric arrangement of the inlet and filter on opposite sides of the tool axis allows the suction channel to be positioned optimally within the compact dust collection box. This asymmetric design enables the suction channel to extend along the tool without excessive length while maintaining good extraction performance, and the overall compact dimensions improve handling comfort
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 allows for a high number of boreholes to be made without filter cleaning or replacement, maintaining efficiency and ease of use across various working conditions.
Implementation Method 1
a suction unit (58) is provided in the dust collection box (50), which is designed to generate a suction flow
Implementation Method 2
the dust collection box (50) is designed to filter out the dust from the dust-laden air by means of a filter (52)
Data Source
AI summary
A power tool, which is connectable to an elongate tool extending forward in a spatial direction, wherein the power tool is designed to drive the tool to perform a rotating and/or striking movement. The power tool includes a dust collection box for extracting dust-laden air from a working region of the power tool, the dust being able to be filtered out from the dust-laden air by means of a filter. A virtual center plane can be placed through a main body of the power tool and/or of the dust collection box, the virtual center plane dividing the main body into two halves, wherein an inlet of the dust collection box for the dust-laden air is arranged predominantly on the one side, and the filter of the dust collection box predominantly on the other side, of the virtual center plane. A dust collection box for a power tool, wherein the inlet and the filter of the dust collection box are present on different sides, i.e. in different halves of the dust collection box.