Multi-Cyclone Dust Collector Layout for Fine Dust Separation
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Solution Overview
Problem
Conventional dust collectors for vacuum cleaners face challenges in efficiently separating fine dust and debris from air, particularly in ensuring that dust is concentrated in one spot for easy disposal, and in maintaining separation performance due to gaps between components.
Innovation Solution
The design incorporates a multi-cyclone system with a primary and secondary cyclone unit, featuring axial cyclones and a fine dust separating member, along with an auxiliary member, which forms a vortex to separate dust and fine dust efficiently, and a pressing unit to compress collected dust, ensuring it is concentrated in one area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single cyclone structure is used, then the device complexity is low, but the separation efficiency of fine dust and debris is insufficient
Solution Approach 1:
The dust collector is divided into multiple independent cyclone units (primary cyclone and secondary cyclone) that work in sequence. The primary cyclone separates larger debris while the secondary cyclone captures fine dust, with each cyclone optimized for its specific separation task. This segmentation allows high separation efficiency without requiring each individual cyclone to be overly complex.
Solution Approach 2:
The patent introduces a vertical arrangement of cyclones stacked one above another, utilizing the vertical dimension to accommodate multiple separation stages within a compact horizontal footprint. This multi-level configuration enables sequential separation of different particle sizes while maintaining space efficiency.
2Manufacturing precision
If multiple cyclone units are used to improve separation efficiency, then dust separation performance improves, but the volume of the dust collector increases
Solution Approach 1:
The secondary cyclone is positioned inside or adjacent to the primary cyclone structure, with the dust collection chamber of the secondary cyclone nested within the overall dust collector housing. This nesting arrangement allows multiple cyclone units to occupy overlapping or adjacent spatial volumes, reducing the total external dimensions of the dust collector while maintaining multiple separation stages.
Solution Approach 2:
By stacking cyclones vertically and utilizing the height dimension, the patent accommodates multiple separation stages without proportionally increasing the horizontal footprint. The compact vertical arrangement reduces the overall volume occupied by the dust collector while maintaining effective multi-stage separation capability.
3Manufacturing precision
If dust is collected in a large area, then separation performance is maintained, but dust scattering occurs and disposal becomes difficult
Solution Approach 1:
The dust collection chambers of both the primary and secondary cyclones are merged into a single common collection area at the bottom of the dust collector. Dust and debris from both separation stages accumulate in this unified chamber, allowing concentrated collection rather than dispersed storage. This merging enables easy disposal through a single access point while maintaining separation performance through the multi-stage cyclone process.
Solution Approach 2:
The separation function is extracted and performed in the cyclone chambers, while the collection function is consolidated in a separate common chamber. This functional separation allows the dust to be concentrated in one accessible location for easy disposal, while the separation performance is maintained by the dedicated cyclone structures that process the dust before it reaches the collection chamber.
4Ease of manufacture
If gaps are provided between components for assembly, then ease of manufacture is improved, but separation performance deteriorates due to air leakage
Solution Approach 1:
Flexible sealing rings or gaskets are used at the interfaces between cyclone units and the housing to prevent air leakage through assembly gaps. These flexible sealing elements can accommodate manufacturing tolerances and assembly variations while maintaining effective seals, thus preserving separation performance without requiring extremely tight tolerances that would complicate manufacturing.
Solution Approach 2:
Sealing structures are designed in advance to compensate for potential gaps between components. By incorporating sealing rings, gaskets, or interference-fit features into the design, the patent anticipates and prevents air leakage issues before they occur during operation, maintaining separation performance while allowing practical assembly clearances.
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
This configuration enhances the separation efficiency of dust and fine dust, prevents scattering, and ensures dust is concentrated in one spot for easy disposal, improving overall dust collection performance.
Implementation Method 1
an auxiliary member, which forms a vortex to separate dust and fine dust efficiently
Implementation Method 2
forms a vortex to separate dust and fine dust efficiently
Implementation Method 3
a pressing unit to compress collected dust, ensuring it is concentrated in one area
Data Source
AI summary
A dust collector includes a primary cyclone unit to separate dust from air introduced from outside dust collector and a secondary cyclone unit includes axial cyclones which separate fine dust from air introduced in an axial direction. The secondary cyclone unit includes a first group of axial cyclones disposed along a circumference of a first circle so as to contact an inner circumferential surface of an inner case, and formed to be partially spaced apart from the inner circumferential surface of the inner case to form first passages therebetween; and a second group of axial cyclones disposed to contact each other along a circumference of a second circle concentric with the first circle and smaller than the first circle, and formed to contact some of the first group of axial cyclones and to be spaced apart from others of the first group axial cyclones to form second passages therebetween.