Self-Cleaning Vacuum Filter Layout for Low-Noise Dust Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum cleaners face challenges in achieving a compact design with low noise generation and reduced turbulence in the suction air flow during the cleaning process, while maintaining effective dust filtration and minimizing flow losses.
Innovation Solution
A vacuum cleaner with a self-cleaning filter that integrates an electric motor for mechanical cleaning, where the motor is partially housed within the filter, allowing for efficient dust removal without additional coupling points and noise insulation, and a rotatably mounted deduster that aligns with the filter axis for optimal cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electric motor is integrated into the filter interior, then the overall size is reduced and noise is insulated, but the filter interior space is occupied
Solution Approach 1:
The electric motor is nested within the filter housing interior, with the motor axis aligned with the filter axis. This nesting arrangement allows the motor to be housed within the existing filter structure, reducing the overall vacuum cleaner size while the filter housing walls provide noise insulation for the motor during operation.
2Productivity
If the cleaner is rotatably mounted on the filter axis, then cleaning efficiency is improved, but the structural complexity increases
Solution Approach 1:
The cleaner assembly serves multiple functions: it is driven by the electric motor to rotate and mechanically clean the filter screen, while simultaneously being positioned to allow passage of suction air flow through the filter. This multi-functionality improves cleaning efficiency without requiring separate complex mechanisms for each function.
3Loss of energy
If the motor is positioned opposite the exhaust air opening, then flow losses and turbulence are reduced, but the noise insulation effectiveness is reduced
Solution Approach 1:
The electric motor is positioned in a specific location within the filter housing - opposite the exhaust air opening and downstream of the filter screen. This local positioning optimizes the suction air flow path to minimize turbulence and energy losses, while the filter housing structure itself provides sufficient noise insulation for the motor location.
4Device complexity
If the cleaner is driven directly by the electric motor, then the number of coupling points is reduced, but the motor requires precise alignment with the cleaner axis
Solution Approach 1:
The electric motor and cleaner are merged into a single integrated assembly, with the motor shaft directly connected to the cleaner rotation mechanism. This integration eliminates separate coupling points and reduces the number of mechanical interfaces, simplifying the overall structure despite requiring precise alignment during manufacturing.
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 enables a compact, low-noise, and efficient self-cleaning filter design with reduced flow losses and turbulence, ensuring effective dust removal and improved reliability through mechanical energy transmission and noise insulation.
Implementation Method 1
an electric motor (30) for driving the cleaning device (40)
Implementation Method 2
a filter (20) with filter material (21) for filtering a dust-laden suction air flow (12)
Implementation Method 3
a cleaning device (40) for mechanically cleaning the filter (20) with which dust particles can be removed from the filter material (21)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a vacuum cleaner comprising a filter (20) having an inner chamber (22) for filtering a dust-laden stream of suction air and an electric motor (30) for cleaning the filter (20), wherein the electric motor (30) is disposed at least partially in the inner chamber (22) of the filter (20). The present invention allows a vacuum cleaner to be provided using structurally simple and cost-effective means comprising a self-cleaning filter (20), which may have a compact construction. In particular, a filter (20) may be provided having a low noise level during the cleaning process. Moreover, the invention is able to attain a simple, frictionally optimized structure for a self-cleaning filter (20).