Cyclonic Separator with Deflector Fin for Compact Vacuum Cleaners
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Solution Overview
Problem
Conventional cyclonic separation systems in vacuum cleaners often require complex designs and larger sizes to maintain separation efficiency, which can lead to increased costs and reduced portability, especially in hand-holdable devices where space and material efficiency are crucial.
Innovation Solution
A cyclonic separation apparatus featuring a cyclone with a deflector fin that directs air flow in a helical path, combined with a vortex finder and a compact dirt container design, allowing for improved separation efficiency in a smaller form factor, thus enhancing performance and reducing the need for frequent filter replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional cyclonic separation systems are designed with larger sizes and more complex structures, then separation efficiency is maintained, but device complexity and size increase
Solution Approach 1:
The cyclone separator is divided into distinct functional segments: a cylindrical body portion for initial separation, a conical body portion for enhanced separation efficiency, and a vortex finder for controlled air flow exit. This segmentation allows each portion to optimize its specific function while maintaining overall compactness and simplicity
Solution Approach 2:
The patent transitions from complex multi-component designs to a simplified single-integrated-cyclone design that achieves high separation efficiency through optimized three-dimensional geometry. The vertical stacking of cylindrical and conical portions creates efficient air flow paths in the vertical dimension without requiring horizontal expansion
2Manufacturing precision
If conventional cyclonic separation systems are designed with larger sizes, then separation efficiency is maintained, but the device size increases
Solution Approach 1:
The vortex finder is positioned concentrically within the cyclone chamber, and the conical body portion is nested within the cylindrical body portion, creating a compact nested structure. This nesting allows multiple functional elements to occupy overlapping spatial volumes, maximizing separation efficiency within a minimized external footprint
Solution Approach 2:
The smooth curved transitions between the cylindrical and conical portions, along with the rounded vortex finder design, create optimized air flow patterns that enhance separation efficiency without requiring larger dimensions. The curved geometries promote stable vortex formation and reduce turbulence losses
3Strength
If more materials are used in cyclonic separation system construction, then structural integrity and separation performance are improved, but material usage and cost increase
Solution Approach 1:
The cyclone separator is designed with thin-walled cylindrical and conical portions that provide sufficient structural integrity for vacuum cleaner applications while minimizing material consumption. The streamlined shell design maintains structural strength through optimized wall thickness and geometric form rather than excessive material
Solution Approach 2:
Multiple functional elements are merged into a single integrated cyclone structure: the separation chamber, the vortex finder, and the air flow pathways are combined into one unified component assembly. This merging eliminates the need for multiple separate parts, reducing total material usage while maintaining structural integrity and separation performance
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 provides consistent and efficient cyclonic separation with reduced material usage and size, maintaining performance over time while minimizing the need for frequent filter cleaning or replacement, making it suitable for compact vacuum cleaners.
Implementation Method 1
a deflector fin arranged within the cyclone to deflect, in use, air flow from the air inlet port in a helical path around the cyclone and towards the discharge nozzle
Implementation Method 2
cyclonic separation apparatus comprising: a cyclone with a hollow generally cylindrical body, a hollow generally frusto-conical body tapering away from the cylindrical body
Implementation Method 3
The fan is often a centrifugal fan, although it can be an impeller or a propeller
Data Source
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AI summary
A cyclonic separation apparatus (408) for a vacuum cleaner (402), the cyclonic separation apparatus (408) comprising: a cyclone (484) with a hollow cylindrical body (485), a hollow frusto-conical body (486) tapering away from the cylindrical body (485), and a longitudinal central axis (457) through the cylindrical body (485) and the frusto-conical body (486); a discharge nozzle (487) through the frusto-conical body (486) at a longitudinal end; an air inlet port (488) arranged tangentially through a side of the cylindrical body (485); and an air outlet port (456) through the cylindrical body (485) at an opposite longitudinal end; a dirt container (520) in communication with the cyclone (484); and a deflector fin (454) arranged within the cyclone (484) to deflect, in use, air flowing from the air inlet port (488) in a helical path around the cyclone (484) and towards the discharge nozzle (487). A vacuum cleaner (402) comprising a motor (416) coupled to a fan (418) and the cyclonic separation apparatus (408).