Pool Cleaner Filter Extraction at the Waterline
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Solution Overview
Problem
Conventional automatic swimming pool cleaners require removal from the pool to access and clean on-board filters, which can be inconvenient and disrupt pool cleaning operations.
Innovation Solution
The automatic swimming pool cleaner is configured to climb to the pool waterline, allowing users to remove and install debris filters externally without contacting the pool water, using features like latches, magnet assemblies, and sensors to facilitate filter retention and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the APC is designed with on-board filters for trapping debris, then the cleaning effectiveness is improved, but the filters require removal from the pool for maintenance which disrupts cleaning operations
Solution Approach 1:
The filter system is segmented into a removable filter assembly that can be independently accessed. The filter is divided into components (filter housing, filter element, lid) that can be separated and maintained without removing the entire APC from the pool, allowing continuous operation while enabling filter maintenance.
Solution Approach 2:
The filter assembly is extracted as a separate serviceable component from the APC body. The filter can be removed, cleaned, and reinstalled while the APC remains in the pool, separating the maintenance function from the complete system removal and allowing continuous cleaning operations.
2Extent of automation
If the APC is designed to be fully autonomous and sealed, then the automation level is improved, but user access to filters requires pool entry which is inconvenient and unsafe
Solution Approach 1:
The APC maintains full automation and sealing for operation, but provides partial access capability for filter maintenance. The filter assembly can be accessed and removed through a designated access point without requiring complete system opening or pool entry, providing sufficient access for maintenance while preserving autonomous operation.
Solution Approach 2:
A filter access mechanism serves as an intermediary between the sealed autonomous system and user access needs. The access point allows filter removal and installation from outside the pool, mediating between the sealed autonomous design and convenient user access without requiring pool entry.
3Ease of repair
If the filter is made easily removable for maintenance, then the ease of maintenance is improved, but the risk of accidental dislodgement during operation increases
Solution Approach 1:
The filter retention system uses dynamic characteristics where the filter assembly can be easily removed when needed (high ease of maintenance) but remains securely retained during normal operation (high retention reliability). The system transitions between a retained state during cleaning and a removable state during maintenance through controlled access mechanisms.
Solution Approach 2:
The filter assembly has different engagement characteristics at different locations and states. During operation, the filter is securely retained at the mounting location. During maintenance, the access point provides localized ease of removal. This local differentiation of engagement quality allows both secure retention and easy maintenance.
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
Enables filter maintenance without interrupting pool cleaning operations, allowing users to access and reinstall filters without entering the pool, ensuring continuous cleaning service.
Implementation Method 1
a magnet assembly, and underpressure
Implementation Method 2
a spring or repulsive magnet to facilitate removing a debris filter
Data Source
AI summary
Automatic swimming pool cleaners (APCs) may include debris filters accessible from externally of the swimming pools in which the APCs are operating. The APCs may be programmed to climb to waterlines of the pools and present their debris filters above the waterlines for removal by users positioned outside the pools. Sensors may determine whether the filters have been reinstalled within the APCs, thus allowing the APCs to return to cleaning service.