Vacuum Cleaner Dust Collector With Tangential Dust Guide Passage
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Solution Overview
Problem
In vacuum cleaners, dust separation efficiency is hindered by light dust particles remaining in the dust separating unit, contaminating the filter and reducing airflow, while also causing dust to be blown back to the storage, decreasing efficiency and contaminating the filter.
Innovation Solution
A dust guide passage is introduced to direct separated dust tangentially from the dust separating unit to the storage, ensuring efficient discharge and preventing backflow, thus maintaining filter cleanliness and enhancing separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dust is sent to dust storage through gravity via a dust discharge hole in the barrier wall, then heavy dust particles are easily moved down to dust storage, but light dust particles remain in the dust separating unit and contaminate the filter
Solution Approach 1:
The dust discharge path is segmented into two distinct paths: a first dust discharge hole in the barrier wall for heavy dust particles, and a second dust discharge hole at the bottom of the dust separating unit for light dust particles. This segmentation allows different dust types to be discharged through optimized pathways, preventing filter contamination while maintaining discharge efficiency.
Solution Approach 2:
A dust guide passage is introduced as an intermediary structure to guide light dust particles from the dust separating unit to the second dust discharge hole. This intermediary mechanism ensures that light dust particles, which cannot be effectively discharged by gravity alone, are properly directed to storage without contaminating the filter.
2Productivity
If dust is moved from dust separating unit to dust storage through dust discharge hole, then dust collection is achieved, but dust stored in dust storage can be blown back to dust separating unit by swirling air
Solution Approach 1:
Instead of discharging dust directly downward through the barrier wall, the invention introduces a dust guide passage that redirects dust discharge in a tangential direction. This inverted discharge path prevents swirling air from blowing stored dust back into the separating unit, as the tangential flow creates a protective barrier and maintains proper dust flow direction.
Solution Approach 2:
The dust discharge mechanism transitions from a purely vertical gravity-based path to a tangential directional path through the dust guide passage. This dimensional change in discharge trajectory prevents backflow of stored dust by utilizing tangential flow dynamics rather than direct vertical communication between storage and separating unit.
3Object-affected harmful factors
If filter is installed in dust separating unit, then dust filtering is achieved, but air cannot easily pass through filter when light dust particles remain and contaminate it
Solution Approach 1:
The invention implements preliminary action by providing a dedicated discharge path for light dust particles through the second dust discharge hole and dust guide passage. This preliminary removal of light dust particles prevents them from accumulating on the filter before filtration occurs, thereby maintaining filter cleanliness and ensuring efficient airflow through the filter throughout operation.
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 tangential dust guide passage ensures both light and heavy dust particles are efficiently discharged, preventing contamination of the filter and reducing backflow, thereby improving dust separation efficiency and maintaining filter integrity.
Implementation Method 1
a dust guide passage connecting the separation space to the dust storage and guiding the separated dust to be discharged from the separation space in a tangential direction
Implementation Method 2
dust is separated from the air in the dust separating unit. After that, the air is discharged through the discharge hole, and the separated dust is sent to the dust storage formed in a lower portion of the dust collector vessel through the dust discharge hole
Data Source
AI summary
Provided is a dust collector of a vacuum cleaner. The dust collector includes a dust separating unit forming a separation space for separating dust from air, a collector body forming a dust storage for storing the dust separated in the dust separating unit, and a dust guide passage connecting the separation space to the dust storage and guiding the separated dust to be discharged from the separation space in a tangential direction.