Nested Cyclone Vacuum Cleaner Design to Reduce Height and Backflow
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Solution Overview
Problem
Vacuum cleaners with multi-cyclone structures face issues such as increased height, reduced dust collection volume, interference between cyclones, backflow of dust, and inconvenient dust discharge processes, leading to compromised cleaning performance and user experience.
Innovation Solution
A vacuum cleaner design featuring a first cyclone with a second cyclone accommodated within, a rotating member with ribs to guide and agglomerate dust, and a simplified suction passage with a direct intake guide, reducing height, preventing backflow, and enhancing maintenance convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a multi-cyclone structure is adopted, then cleaning performance is improved, but the height of the dust collector increases
Solution Approach 1:
The patent places the second cyclone inside the first cyclone, creating a nested configuration where the inner cyclone is positioned within the outer cyclone's housing. This nesting arrangement allows multiple cyclones to function simultaneously while occupying a reduced vertical space, thereby maintaining improved cleaning performance without increasing the overall height of the dust collector
2Length of moving object
If the dust collector is designed with a slim profile, then height is reduced, but the volume for collecting dust decreases
Solution Approach 1:
The patent transitions from a vertical stacking arrangement to a horizontal/nested arrangement by placing the second cyclone inside the first cyclone. This dimensional change allows the dust collector to maintain a compact height while expanding the effective dust collection volume through the nested configuration, effectively utilizing three-dimensional space
3Length of moving object
If the second cyclone is disposed within the first cyclone, then height is reduced, but interference between guide passages occurs
Solution Approach 1:
The patent applies different structural characteristics to different regions: the first cyclone has a guide passage for directing airflow, while the second cyclone positioned inside has its own separate guide passage configuration. By localizing the guide passage designs to specific regions and ensuring proper spatial arrangement, the patent reduces interference between the nested cyclones while maintaining the height-reduced benefit
4Reliability
If a skirt is provided in the first storage section, then dust backflow is prevented, but foreign matter gets caught in the gap
Solution Approach 1:
The patent makes the skirt rotatable, transforming it from a static structure to a dynamic one. The rotation capability allows the skirt to actively discharge foreign matter that becomes trapped in the gap between the skirt and the outer case, while still maintaining its function as a barrier to prevent dust backflow into the cyclone. This dynamic adjustment resolves the contradiction by providing dual functionality
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 allows for efficient dust separation and collection without height increase, reduces backflow, and simplifies dust discharge, improving cleaning performance and user convenience.
Implementation Method 1
a first cyclone provided within an outer case to filter foreign matter and dust from air introduced from an outside thereof
Implementation Method 2
a variety of flows including a high-speed rotation flow due to the suction power of a fan unit are mixed within a dust collector
Implementation Method 3
a roller portion disposed to face a lower cover that covers a lower opening of the outer case, and be brought in contact with foreign matter and dust collected in the first storage section during the rotation of the rotating member to apply a rotational force
Data Source
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AI summary
The present disclosure discloses a vacuum cleaner, including a cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced from an outside thereof and introduce the air from which foreign matter and dust have been filtered thereinto; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotating member disposed at a lower side of the first cyclone and configured to be rotatable so as to define a first storage section configured to collect foreign matter and dust filtered by the first cyclone between the rotating member and the outer case, and wherein the rotating member is provided with a roller portion disposed to face a lower cover that covers a lower opening of the outer case, and be brought in contact with foreign matter and dust collected in the first storage section during the rotation of the rotating member to apply a rotational force.