Cyclonic separation device for home vacuum cleaner
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Solution Overview
Problem
Cyclonic separation devices in domestic vacuum cleaners suffer from poor air flow distribution between cyclonic separators, leading to insufficient waste separation performance and acoustic issues.
Innovation Solution
The cyclonic separation device is designed with a central set of cyclone separators and a second set distributed around the central longitudinal axis, with air inlet openings oriented towards the central region to enhance air supply and distribution, improving separation performance and acoustic efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If air inlet openings of cyclone separators are oriented towards the outside of the second separation stage, then air flow can easily penetrate into the cyclone separators, but poor air flow distribution occurs between the various cyclone separators
Solution Approach 1:
The patent applies local quality by differentiating the orientation of air inlet openings between two sets of cyclone separators. The first set (central) has openings oriented towards the central region, while the second set (peripheral) has openings oriented towards the outside. This localized differentiation optimizes air flow distribution to each specific region, ensuring that both central and peripheral cyclone separators receive adequate air flow without the poor distribution that occurs when all openings face the same direction.
2Ease of operation
If cyclone separators are arranged at the periphery of the second separation stage, then air flow penetration is facilitated, but waste separation performance becomes insufficient
Solution Approach 1:
The patent segments the cyclone separators into two distinct sets with different orientations and positions. The first set is arranged in the central region with openings facing the central region, while the second set is arranged at the periphery with openings facing outward. This segmentation allows each set to perform its separation function optimally, with the central set handling air flow that requires penetration and the peripheral set handling air flow that benefits from external orientation, thereby improving overall waste separation performance.
3Device complexity
If air inlet openings are oriented towards the outside, then structural simplicity is maintained, but acoustic performance deteriorates
Solution Approach 1:
The patent applies local quality by orienting air inlet openings differently for central and peripheral cyclone separators. The central cyclone separators have openings facing the central region, which helps reduce noise by directing air flow in a manner that minimizes turbulence and acoustic emissions in the central area. The peripheral cyclone separators have openings facing outward, which also contributes to noise reduction by directing air flow away from the central region. This localized orientation strategy improves acoustic performance without significantly increasing structural complexity.
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 results in improved air flow distribution and separation performance, enhancing the overall efficiency and noise reduction of the cyclonic separation device.
Implementation Method 1
a second separation stage disposed in the waste collection receptacle and configured to separate waste from air discharged through the first separation stage, the second separation stage comprising a plurality of cyclonic separators arranged in parallel with respect to each other
Implementation Method 2
each cyclonic separator comprising a tubular body which delimits a secondary separation chamber and an air intake duct comprising an air inlet opening air fluidly connected to the first separation stage and an air outlet opening leading into the respective secondary separation chamber
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The cyclone separation device (4) includes a waste collection container (7); a first separation stage (11); a second separation stage (12) comprising a plurality of cyclone separators (18) arranged in parallel with each other, each cyclone separator (18) comprising a tubular body (19) which delimits a secondary separation chamber (21) and an air intake duct (22) comprising an air inlet opening and an air outlet opening (24) leading into the respective secondary separation chamber (21).The plurality of cyclone separators comprises a first set of cyclone separators which are arranged in a central region of the second separation stage (12), and a second set of cyclone separators which are arranged around the cyclone separators of the first set, the air inlet openings of the cyclone separators of the second set being oriented towards the central region of the second separation stage (12).