Nested Cyclone Dust Collector to Reduce Height and Passage Loss
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Solution Overview
Problem
Vacuum cleaners with multi-cyclone structures face issues such as increased height, reduced suction power, inefficient air introduction between cyclones, and difficulties in separating fine dust due to interference and passage losses, as well as inconvenient dust discharge processes.
Innovation Solution
A dust collector design that accommodates a second cyclone within a first cyclone, utilizing first and second guide vanes to enhance rotational flow and air introduction, and a mesh filter for separate dust and fine dust collection, with a dual storage unit for simultaneous discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multi-cyclone structure with vertically disposed cyclones is used, then fine dust separation performance is improved, but the height of the dust collector increases
Solution Approach 1:
The patent applies nesting by placing the second cyclone inside the first cyclone, with the second cyclone's outer circumference positioned within the first cyclone's inner space. This nested arrangement allows multiple cyclones to function simultaneously while reducing the overall height of the dust collector, resolving the contradiction between fine dust separation performance and collector height
2Length of stationary object
If the dust collector is designed with a slim profile to reduce height, then the height is reduced, but the volume for collecting actual dust decreases
Solution Approach 1:
By nesting the second cyclone within the first cyclone's internal space, the patent utilizes the vertical space more efficiently. This allows the dust collector to maintain a compact height while preserving adequate dust collection volume through optimized spatial arrangement rather than reducing overall capacity
3Reliability
If air passes through the first cyclone before entering the second cyclone, then dust is filtered out, but the flow speed of air decreases reducing efficiency in the second cyclone
Solution Approach 1:
The patent introduces a guide passage as an intermediary element that connects the first and second cyclones. This guide passage is specifically designed to maintain and enhance the rotational flow of air, ensuring that air entering the second cyclone retains sufficient flow speed and rotational force for effective fine dust separation, thus mediating between the filtration function of the first cyclone and the separation efficiency of the second cyclone
4Productivity
If a tangential inhalation type cyclone structure is used, then air introduction is improved, but passage loss increases due to guide passage installation
Solution Approach 1:
The patent employs curved guide passages with optimized geometry to transition air flow between cyclones. The curved design maintains rotational flow patterns while minimizing turbulence and energy loss, allowing efficient air introduction without the harmful effects of sharp angles or abrupt transitions that would increase passage loss
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 reduces the height of the dust collector, improves air introduction and separation efficiency, and facilitates easy and simultaneous discharge of dust and fine dust, preventing performance degradation and enhancing user convenience.
Implementation Method 1
a first cyclone disposed within an outer case to filter out dust from air introduced from an outside
Implementation Method 2
a first guide vane spirally extended from an annular shaped first space between the first and the second cyclone to induce rotational flow
Implementation Method 3
a second cyclone accommodated in the inside of the first cyclone to separate fine dust from the air introduced to the inside of the first cyclone
Implementation Method 4
a second guide vane spirally extended along an inner circumference of the inlet to enhance the rotational flow of air introduced to an inside of the second cyclone
Implementation Method 5
a mesh filter for separate dust and fine dust collection
Data Source
AI summary
The present disclosure discloses a dust collector for a vacuum cleaner, including a first cyclone disposed within an outer case to filter out dust from air introduced from an outside thereof and introduce the air from which dust has been filtered out to an inside thereof, a second cyclone accommodated in the inside of the first cyclone to separate fine dust from the air introduced to the inside of the first cyclone, a first guide vane spirally extended from an annular shaped first space between the first and the second cyclone to induce rotational flow so as to introduce air introduced into the first space to an inlet of the second cyclone, and a second guide vane spirally extended along an inner circumference of the inlet to enhance the rotational flow of air introduced to an inside of the second cyclone through the inlet.