Drum Brush Dust Removal Mechanism for Upright Vacuum Cleaners
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Solution Overview
Problem
Upright cleaners with drum brushes face reduced cleaning efficiency due to foreign matter being rotated and tangled by the high-speed rotational force, leading to decreased effectiveness in dust and hair removal.
Innovation Solution
An upright cleaner design featuring a dust removal unit that can be moved between contact and separation positions with respect to the drum brush, utilizing a lever and elastic components to facilitate the removal of dust and hair from the drum brush without interrupting its operation, ensuring continuous cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the drum brush rotates at high speed to separate foreign matter from the surface, then cleaning efficiency is improved, but foreign matter becomes tangled on the drum brush reducing cleaning efficiency
Solution Approach 1:
The dust removal unit is extracted as a separate functional component that can be independently activated to remove dust from the drum brush surface. This separate extraction mechanism allows the drum brush to continue rotating while dust is removed, preventing the tangling problem without interrupting the cleaning process.
Solution Approach 2:
The dust removal unit is designed to be movable between a first position (contacting the drum brush) and a second position (separated from the drum brush). This dynamic positioning allows the system to adapt between dust removal mode and normal cleaning mode, maintaining high-speed rotation while preventing dust accumulation.
2Productivity
If the dust removal unit contacts the drum brush to remove dust, then dust removal effectiveness is improved, but the drum brush rotation may be interfered with
Solution Approach 1:
The dust removal unit is designed with movable characteristics, allowing it to contact the drum brush only when needed for dust removal. During normal operation, it remains separated, ensuring the drum brush can rotate at high speed without interference. This dynamic approach maintains both dust removal effectiveness and rotation speed.
Solution Approach 2:
The dust removal unit operates periodically rather than continuously, contacting the drum brush at intervals to remove accumulated dust. This periodic action prevents dust buildup without continuously interfering with the drum brush rotation, maintaining cleaning efficiency while enabling effective dust removal.
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 allows for effective removal of dust and hair from the drum brush, maintaining cleaning efficiency by ensuring the drum brush can rotate freely while removing entangled debris, thus enhancing overall cleaning performance.
Implementation Method 1
an elastic part provided between the bent part and the top of the case to elastically bias the bent part upward
Implementation Method 2
The drum brush contacts a surface to be cleaned while being rotated at high speed to separate foreign matter from the surface
Implementation Method 3
The vacuum cleaner suctions air using suction force of a blowing device and separates foreign matter from the suctioned air using a filter
Data Source
AI summary
An upright cleaner removes dust from a drum brush. The upright cleaner includes a case having a suction port, a drum brush rotatably provided in the case to sweep and guide foreign matter to the suction port, a dust removal unit provided in the case so that the dust removal unit is moved between a first position where one side of the dust removal unit contacts the drum brush and a second position where the side of the dust removal unit is separated from the drum brush, and a lever connected to the dust removal unit to actuate the dust removal unit.