Handheld Vacuum Cyclone Assembly for Dust Clog Reduction
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Solution Overview
Problem
Hand-held vacuum cleaners often experience air channel clogging due to inadequate dust-air separation, particularly with single-stage cyclone structures, leading to inefficiencies in filtration and cleaning effectiveness.
Innovation Solution
A hand-held vacuum cleaner design featuring a dust cup with a first cyclone and multiple second cyclones arranged in parallel, along with an air guiding pipe and filtration member, which enhances dust-air separation by prolonging airflow residence time and improving cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single stage cyclone structure is adopted for dust-air separation, then the device complexity is reduced, but the dust throwing effect is not significant and causes clogging of filtration member
Solution Approach 1:
The dust cup is divided into multiple functional zones: a first cyclone for preliminary separation, a second cyclone for further separation, and a filtration member for final filtration. This multi-stage segmentation approach progressively separates dust from air, preventing clogging while maintaining structural organization.
Solution Approach 2:
The second cyclone is positioned inside the first cyclone, creating a nested configuration where the smaller cyclone is contained within the larger one. This nested arrangement allows both cyclones to function simultaneously in series, improving separation effectiveness without significantly increasing external device dimensions.
2Productivity
If airflow residence time in cyclone is shortened, then the productivity is improved, but the cleaning efficiency of airflow is reduced
Solution Approach 1:
The separation process is divided into multiple stages with the first cyclone performing preliminary separation and the second cyclone performing further separation. This segmentation allows airflow to be processed quickly in each stage while achieving thorough cleaning overall, balancing productivity and cleaning efficiency.
Solution Approach 2:
The multiple cyclones and filtration member are arranged in series to create a continuous separation process. Airflow continuously passes through each stage without interruption, maintaining high productivity while ensuring thorough dust removal at each step, preventing any single stage from becoming a bottleneck.
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 design achieves a superior dust-air separation effect, reducing clogging risks and enhancing cleaning performance by utilizing a two-stage cyclone separation system and air guiding mechanisms.
Implementation Method 1
the cyclone assembly comprises a plurality of second cyclones arranged in parallel along a circumferential direction of the first cyclone
Implementation Method 2
an airflow is guided to an outer circumference of the cyclone assembly along a tangent line to a circumferential wall of the second cyclone adjacent to the guiding channel
Implementation Method 3
the filtration member is disposed along the outer circumference of the cyclone assembly, the airflow in the outer circumference of the cyclone assembly tangentially enters the second cyclone through the filtration member
Data Source
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AI summary
A hand-held vacuum cleaner (100) is provided, including a dust cup (2), the dust cup includes a first cyclone, a cyclone assembly, and a filtration member. The cyclone assembly includes a plurality of second cyclones (22), a guiding channel (23) is defined between two of the plurality of the second cyclones (22), the guiding channel (23) is in communication with the first air vent and an airflow is guided to an outer circumference of the cyclone assembly by the guiding channel (23) along a tangent line to a circumferential wall of the second cyclone (22) adjacent to the guiding channel (23), each second cyclone (22) has an air inducing notch (222), each second cyclone (22) is provided with an air guiding pipe (221), the filtration member is disposed along the outer circumference of the cyclone assembly, and the airflow in the outer circumference of the cyclone assembly tangentially enters the second cyclone (22) through the filtration member and the air inducing notch (222).