Cyclone Dust Collector Spiral Airflow Layout for Low Pressure Loss
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Solution Overview
Problem
Cyclone dust collecting apparatuses in hand-held vacuum cleaners suffer from pressure loss and reduced dust separating efficiency due to changes in air flow path and the use of separate duct members, which limits the effectiveness of high-power suction motors.
Innovation Solution
A cyclone dust collecting apparatus with a pre-motor filter unit and a dust collecting bin featuring a spiral flow path-guide member maintains air flow direction, coupled with an anti-back flow rib to prevent backflow, and eliminates the need for separate duct members by directly connecting the cleaner inlet port to the cyclone inlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air flow path is reversed or sharply curved in the cyclone dust collecting apparatus, then the dust separation process can be achieved, but pressure loss increases and dust separating efficiency deteriorates
Solution Approach 1:
The patent inverts the conventional cyclone configuration by positioning the cyclone inlet at the lower end of the dust collecting bin and the air outlet at the upper end, opposite to the traditional arrangement. This inversion allows air to flow upward in a more direct path, reducing sharp curvature and pressure loss while maintaining effective dust separation through the cyclone action.
Solution Approach 2:
The patent employs a spiral flow path-guide member with smooth curved surfaces that guide air flow in a controlled spiral pattern. This curved guide member replaces sharp angular transitions with gradual curves, reducing flow separation and pressure loss while maintaining the centrifugal force necessary for dust separation.
2Ease of operation
If a separate duct member is used to connect the inlet port to the cyclone inlet, then the air flow path can be established, but the flow path becomes long and air flow loss increases
Solution Approach 1:
The patent merges the duct function directly into the dust collecting bin structure by forming the cyclone inlet directly on the bin wall. This integration eliminates the need for separate duct members, shortens the air flow path, and reduces the number of connection points where pressure loss could occur, while still establishing the necessary air flow path from the inlet port to the cyclone inlet.
3Weight of moving object
If the hand-held cleaner uses a small size, then portability is improved, but the dust separating efficiency decreases due to larger relative pressure loss
Solution Approach 1:
The spiral flow path-guide member with smooth curved surfaces optimizes the limited space within the compact hand-held cleaner by creating an efficient spiral flow pattern. This curved guide member maximizes the utilization of available volume to generate sufficient centrifugal force for dust separation, maintaining effective dust separation performance despite the reduced size and shorter air flow path of the portable device.
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 reduces pressure loss and enhances dust collecting efficiency by maintaining consistent air flow direction and preventing backflow, allowing for improved suction performance without the need for additional ducts.
Implementation Method 1
a cyclone dust collecting apparatus, which collects a dirt or dust from an air, and a hand-held vacuum cleaner having the same. Particularly, a cyclone dust collecting apparatus, which is a dust collecting apparatus to form a whirling current in the air thus to separate the dust or dirt therefrom by using a centrifugal force generated by the whirling of air
Data Source
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AI summary
The hand-held cleaner includes a body, and a cyclone dust collecting apparatus detachably mounted in the body. The cyclone dust collecting apparatus includes a pre-motor filter unit having a filter grill and a filter member, a dust collecting bin having one end to which the pre-motor filter unit is coupled and the other end opposite to the one end in which an cyclone inlet is formed, and a cyclone bin disposed in the dust collecting bin and having a spiral flow path-guide member integrally formed therein. A moving path of air drawn into the cyclone inlet is maintained in the same direction until the air is discharged through the pre-motor filter unit via the cyclone bin.