Dedicated Dust Extractor Assembly for Compact Drilling Dust Collection
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Solution Overview
Problem
Existing dust collectors for power tools are inefficient in collecting dust and debris during drilling operations, often leading to accumulation at the worksite due to inadequate suction and design limitations.
Innovation Solution
A power tool assembly that includes a dust extractor with a fan-induced suction system, a filter at an oblique angle, and a latch mechanism with a spring bias, which is removably coupled to the power tool, enhancing dust collection efficiency and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dust collector is attached to a power tool, then dust collection capability is improved, but device complexity increases
Solution Approach 1:
The dust collector integrates the motor, fan, dust container, and connection mechanisms into a single unified assembly that attaches to the power tool. This merging of multiple functional components into one integrated unit improves dust collection capability while managing overall device complexity through consolidation rather than separate attached components.
2Volume of moving object
If the dust extractor is made compact, then ease of operation in small spaces is improved, but manufacturing precision requirements increase
Solution Approach 1:
The dust extractor employs a nested structure where the dust container is positioned within or adjacent to the motor housing, the filter is integrated into the air flow path within the compact housing, and the connection tube is folded or positioned to fit within the overall compact form. This nesting of components allows the dust extractor to achieve a compact volume while maintaining functional integrity through precise integration of nested parts.
3Productivity
If the suction inlet is positioned to optimize dust collection, then dust collection efficiency is improved, but air leakage increases
Solution Approach 1:
The connection tube serves as an intermediary component that bridges the suction inlet on the power tool and the dust extractor. This intermediary element is designed with sealing features at its ends to interface with both the power tool housing and the dust extractor housing, creating sealed connections that maintain the vacuum pressure necessary for efficient dust collection while preventing air leakage at the connection interface.
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 solution effectively collects dust and debris during drilling operations, inhibits air leakage, and improves the overall compactness of the power tool assembly, allowing for easier use in small spaces and storage.
Implementation Method 1
The fan is rotationally driven by the motor and is configured to induce a flow of suctioning air through the suction inlet
Implementation Method 2
The dust extractor includes a filter, and wherein the filter is disposed at an oblique angle relative to the output axis and the drive axis
Data Source
AI summary
A power tool assembly including a power tool and a dust extractor. The power tool includes an output chuck, a housing, a motor, and a fan. The output chuck is configured to receive a tool bit for performing a working operation and defines an output axis. The housing defines a suction inlet. The motor is disposed within the housing and defines a drive axis. The fan is rotationally driven by the motor and is configured to induce a flow of suctioning air through the suction inlet. The dust extractor is removably coupled to the power tool and includes a tool connection tube that interfaces with the suction inlet when the dust extractor is connected to the power tool. The flow of suctioning air induced by the fan flows from the dust extractor to the power tool in a direction extending parallel to the output axis.