Two-Stage Suction Pool Cleaner for Finer Debris Filtration
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Solution Overview
Problem
Existing suction pool cleaners rely on single suction devices that fail to effectively filter finer debris, have limited debris storage capacity, and require frequent maintenance due to frequent debris transfer, increasing operation complexity and costs.
Innovation Solution
A suction pool cleaner with a two-stage filtration system comprising a first filtering assembly within the first shell for initial debris removal, followed by a second filtering assembly within the third shell for secondary filtration, along with a centrifugal force-driven water flow to enhance cleaning efficacy and debris storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single suction device is used, then the device complexity is reduced, but the filtration precision for finer debris deteriorates
Solution Approach 1:
The filtration system is divided into two independent filtering assemblies: a first filtering assembly for initial debris removal and a second filtering assembly for finer contaminant capture. Each assembly handles a specific stage of filtration, allowing the system to achieve high filtration precision without requiring a single overly complex device.
Solution Approach 2:
The patent transitions from a single-dimension filtration approach to a two-dimension filtration approach by arranging filtering assemblies at different spatial locations and stages. The first filter handles coarse debris while the second filter captures finer particles, creating a multi-dimensional filtration architecture that improves precision without excessive complexity.
2Device complexity
If a single filtering stage is used, then the device complexity is reduced, but the cleaning effectiveness deteriorates
Solution Approach 1:
The cleaning process is segmented into two distinct stages: primary filtration of large debris and secondary filtration of finer contaminants. This segmentation allows each filtering assembly to be optimized for its specific function, thereby improving overall cleaning effectiveness while maintaining manageable device complexity.
Solution Approach 2:
The first filtering assembly performs preliminary action by removing large debris before the water reaches the second filtering assembly. This preliminary filtration prevents the second filter from becoming clogged with large particles, thereby maintaining high cleaning effectiveness throughout operation while avoiding the need for an overly complex single-stage system.
3Productivity
If debris storage capacity is increased, then the maintenance frequency is reduced, but the device complexity increases
Solution Approach 1:
The debris storage system is segmented into multiple storage chambers corresponding to different filtering stages. Each chamber collects debris from its respective filter, allowing for organized storage that increases total capacity without creating a single complex storage structure. This segmentation enables efficient debris management and reduces maintenance frequency.
Solution Approach 2:
The patent employs a nested arrangement where debris storage chambers are integrated within the overall device structure, with storage spaces utilized efficiently in a nested configuration. This allows the system to achieve increased storage capacity while maintaining a compact form factor and avoiding excessive structural complexity.
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 two-stage filtration system improves cleaning effectiveness by capturing residual contaminants, increasing debris-holding capacity, and reducing maintenance frequency, thereby enhancing overall cleaning performance and reducing operational complexity.
Implementation Method 1
the impeller assembly is configured to generate a suction force to suck the raw water from the pool, and generate a centrifugal force to output water treated by the first filtering assembly to the second filtering assembly
Data Source
AI summary
A suction pool cleaner, including a shell assembly, a first filtering assembly, an impeller assembly and a second filtering assembly. The shell assembly includes a first shell, a second shell and a third shell communicated in sequence. An end of the first shell away from the second shell has an inlet. An end of the third shell away from the second shell has an outlet. The first filtering assembly is provided within the first shell for primary filtration of wastewater. The impeller assembly is provided within the second shell, and is adjacent to the first filtering assembly. The impeller assembly can generate a suction force to suck the wastewater and a centrifugal force to discharge the primarily-treated water. The second filtering assembly is provided within the third shell for secondary filtration of the water discharged from the impeller assembly.