Vacuum cleaner
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Solution Overview
Problem
Vacuum cleaners with multi-cyclone structures face challenges in efficiently collecting foreign matter and fine dust due to interference between cyclones, leading to reduced suction power and deteriorated cleaning performance, as well as issues with dust floating and flowing back in the dust collector.
Innovation Solution
A vacuum cleaner design where the second cyclone is accommodated within the first cyclone, eliminating the need for guide passages and allowing for a larger number of second cyclones, enhancing suction power and preventing interference, while a guide unit and pressurizing unit with rotating components help in directing and aggregating dust for improved collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a multi-cyclone structure is used to increase suction power, then cleaning performance is improved, but interference between cyclones occurs causing reduced suction power and deteriorated cleaning performance
Solution Approach 1:
The second cyclone is accommodated within the first cyclone, creating a nested configuration where multiple cyclones coexist without interfering with each other. This nested arrangement allows the cyclones to operate independently while maximizing the use of internal space, thereby maintaining high suction power without the harmful interference effects that occur in traditional side-by-side multi-cyclone designs.
Solution Approach 2:
The invention transitions from a horizontal arrangement of cyclones to a vertical nested arrangement. By placing the second cyclone inside the first cyclone along the vertical axis, the design utilizes the vertical dimension to accommodate multiple cyclones, eliminating horizontal interference while maintaining effective suction power across multiple cyclone units.
2Length of stationary object
If the dust collector is designed with a slim profile to reduce height, then the height issue is solved, but the volume of space for collecting dust is reduced
Solution Approach 1:
The nested cyclone configuration allows the second cyclone to be positioned within the vertical space of the first cyclone, effectively utilizing the internal volume without increasing the external height of the dust collector. This maintains a compact, slim profile while preserving adequate dust collection space through efficient three-dimensional space utilization.
Solution Approach 2:
The invention shifts from horizontal space utilization to vertical space utilization by nesting cyclones along the vertical axis. This dimensional transition allows the dust collector to maintain a compact horizontal footprint and controlled height while maximizing the internal volume available for dust collection through the nested arrangement.
3Power
If a large number of second cyclones are placed within the first cyclone, then suction power is enhanced, but guide passages interfere with each other
Solution Approach 1:
The nested configuration of cyclones eliminates the need for complex guide passages that would be required in horizontal arrangements. Each cyclone operates independently within its own vertical space, allowing multiple second cyclones to be accommodated within the first cyclone without guide passage interference, thereby maintaining high suction power with reduced structural complexity.
4Quantity of substance
If dust is collected in the first storage section, then foreign matter is removed, but dust may float and flow back in an upward direction
Solution Approach 1:
The rotating pressurizing unit dynamically compresses and aggregates dust particles, creating a dense packed state that prevents dust from floating or flowing back upward. This dynamic compression mechanism actively maintains dust in a settled, compressed condition, countering the natural tendency of collected dust to become airborne and flow back into the cyclone system.
Solution Approach 2:
The rotating pressurizing unit performs preliminary compression and aggregation of dust particles before they can accumulate in sufficient quantity to cause backflow issues. By continuously maintaining dust in a compressed state, the system prevents the formation of loose dust clouds that could be carried upward by air currents.
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 design enhances suction power, prevents dust backflow, and improves cleaning performance by allowing more second cyclones within the first cyclone, ensuring efficient collection and aggregation of foreign matter and fine dust.
Implementation Method 1
a variety of flows including a high-speed rotation flow due to the suction power of a fan module are mixed within a dust collector
Data Source
AI summary
A vacuum cleaner including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes an outer case forming a side appearance of the dust collector; a first cyclone provided within an outer case to filter dust and foreign matter from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and an upper cover mounted on a top of the outer case to cover the first and second cyclones and having an intake guide configured to introduce air into the outer case and an exhaust guide configured to discharge air from which fine dust is separated by the second cyclone.