Cyclonic separator for a vacuum cleaner
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Solution Overview
Problem
Existing vacuum cleaners with cyclone separators lack an efficient exhaust grill design that effectively directs filtered air to downstream components, leading to potential debris re-entrainment and reduced cleaning performance.
Innovation Solution
A vacuum cleaner design featuring a cyclonic dirt separation system with an exhaust grill comprising spaced vanes that define both air inlet and exhaust conduits, ensuring proper airflow and debris collection, enhancing separation efficiency and reducing re-entrainment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional exhaust grill designs are used without defined exhaust conduits, then the structure is simpler, but airflow efficiency deteriorates and debris re-entrainment increases
Solution Approach 1:
The exhaust grill is segmented into multiple functional vanes, where each vane defines both inlet passages and exhaust conduits. This segmentation allows the grill to perform multiple functions (inlet and exhaust) simultaneously, improving airflow efficiency without requiring separate components for each function.
Solution Approach 2:
The vanes in the exhaust grill are designed to serve dual purposes: defining inlet passages for air entry and defining exhaust conduits for filtered air exit. This multi-functionality reduces the overall complexity of the exhaust system while maintaining effective airflow management.
2Reliability
If spaced vanes are used to define inlet and exhaust conduits, then separation efficiency improves and re-entrainment reduces, but manufacturing complexity increases
Solution Approach 1:
The inlet passages and exhaust conduits are merged into a single integrated vane structure. The spaced vanes simultaneously define both inlet and exhaust pathways, combining what could be separate components into one manufacturable element, thereby reducing overall manufacturing complexity.
Solution Approach 2:
The design parameters of the vanes (spacing, angle, thickness) are optimized to achieve effective separation and prevent re-entrainment. By carefully controlling these geometric parameters, the grill achieves high separation efficiency while remaining manufacturable using standard fabrication processes.
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 improved exhaust grill design enhances the separation and collection of debris, improving airflow efficiency and reducing the likelihood of debris re-entrainment, thereby increasing the overall cleaning performance of the vacuum cleaner.
Implementation Method 1
Cyclone separators can comprise one or more frusto-conical shaped separators, or use high-speed rotational motion of the air/dirt to separate the dirt by centrifugal force
Implementation Method 2
The vanes define a plurality of air inlet passages from the first separation chamber to an interior of the exhaust grill, wherein at least one of the vanes defines an air exhaust conduit that is in fluid communication with the air outlet
Data Source
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AI summary
A vacuum cleaner comprises an improved dirt separator and collection module, which includes an exhaust grill comprising a plurality of vanes defining inlet passages for guiding working air through the module. At least one of the vanes can define an air exhaust conduit for exhausting working air from the module through the exhaust grill.