Multi-Cyclone Vacuum Cleaner with Rotating Filter Cleaning Unit
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Solution Overview
Problem
Conventional vacuum cleaners face issues with filter blockage and foreign objects or dust being trapped in the cleaning unit, leading to increased load on the fan unit and unsightly appearance, as well as difficulties in dropping debris into the dust storage part.
Innovation Solution
A vacuum cleaner design featuring a dust collecting device with a first cyclone for filtering out larger dust and foreign objects, a second cyclone for separating fine dust, and a cleaning unit with rotating ribs to remove debris from the filter, along with a vertically extending skirt to prevent large objects from getting caught, allowing for easy passage and collection of dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a filter is used to separate dust and foreign objects from air current, then separation efficiency is improved, but the filter becomes blocked by arrested dust reducing airflow region
Solution Approach 1:
The patent extracts the harmful accumulated dust from the filter by introducing a dust removal blowout unit that blows air through the filter to remove arrested dust and foreign objects, preventing filter blockage and maintaining airflow region while preserving separation efficiency
Solution Approach 2:
The patent applies preliminary action by removing dust from the filter before it completely blocks the airflow region. The dust removal blowout unit is activated to clear accumulated dust proactively, preventing the worsening of airflow restriction while maintaining separation performance
2Ease of operation
If a cleaning unit is used to remove foreign objects from the filter outer surface, then filter cleaning is improved, but foreign objects gather in the cleaning unit instead of dropping to dust storage part
Solution Approach 1:
The patent extracts foreign objects from the cleaning unit by introducing a dust removal blowout unit that blows air through the cleaning unit to remove gathered foreign objects, allowing them to drop into the dust storage part rather than accumulating in the cleaning unit
Solution Approach 2:
The patent uses air flow as an intermediary to transport foreign objects from the cleaning unit to the dust storage part. The dust removal blowout unit generates air flow that carries arrested foreign objects through the cleaning unit into the dust storage part, preventing accumulation
3Productivity
If a tapered skirt is used to prevent scattering of foreign objects and dust, then collection efficiency is improved, but large foreign objects get caught in the small gap formed by the skirt
Solution Approach 1:
The patent extracts large foreign objects caught in the tapered skirt gap by introducing a dust removal blowout unit that blows air to remove the arrested foreign objects, allowing them to drop into the dust storage part rather than remaining trapped
Solution Approach 2:
The patent applies preliminary action by removing foreign objects from the tapered skirt gap before they cause complete blockage. The dust removal blowout unit is activated to clear arrested foreign objects proactively, maintaining collection efficiency while preventing entrapment
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 reduces filter blockage, ensures easy collection of debris in the dust storage part, minimizes the risk of foreign objects getting caught, and simplifies filter cleaning, reducing user effort and maintenance.
Implementation Method 1
a first cyclone configured to separate larger dust and foreign object from an air current
Implementation Method 2
a cyclone separating device has been used... separate particles such as dust, or the like, from an air current
Implementation Method 3
a second cyclone configured to separate smaller dust (fine dust) from the air current which has passed through the first cyclone
Implementation Method 4
a fan unit providing a suction force... sucking air through the suction unit
Data Source
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AI summary
Provided is a vacuum cleaner separating and collecting dust, or the like, using a multi-cyclone and mesh filter. The vacuum cleaner includes a cleaning unit sweeping dust and foreign objects clinging on the mesh filter down along an outer circumferential surface of the mesh filter and a rotary unit coupled to the mesh filter and relatively rotating the mesh filter with respect to the cleaning unit. Since the cleaning unit automatically/manually cleans a surface of the filter during an operation of the cleaner, the surface of the filter may be maintained to be clean and a load applied to a fan unit due to a foreign object or dust may be reduced.