Pool Cleaning Robot Bypass Mechanism for Clogged Filter Operation
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Solution Overview
Problem
Cleaning robots are unable to effectively clean and sanitize pool surfaces and fluids when their filters are partially or fully clogged, as they often stop functioning or fail to climb pool walls without sufficient fluid intake.
Innovation Solution
A cleaning robot equipped with a bypass mechanism that allows fluid to bypass the filtering unit, enabling the robot to continue operating even when filters are clogged, by using a mechanism that opens in response to tilt angle, suction level, or fluid flow intensity, allowing unfiltered fluid to pass through and facilitate movement and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cleaning robot uses a filter to clean the pool fluid, then the pool fluid cleanliness is improved, but the robot stops functioning when the filter is clogged
Solution Approach 1:
The patent divides the fluid flow path into two separate channels: a filtered fluid path through the filtering unit and an unfiltered fluid path through the bypass mechanism. This segmentation allows the robot to maintain operation by switching between filtered and unfiltered fluid paths depending on filter clogging status, thereby improving reliability without significantly increasing overall system complexity.
Solution Approach 2:
The bypass mechanism acts as an intermediary component that provides an alternative fluid path when the primary filtering path becomes blocked. This intermediary structure enables the robot to continue functioning by allowing unfiltered fluid to pass through the bypass channel, preventing complete system failure due to filter clogging.
2Ease of operation
If the cleaning robot requires clean filters to move and climb pool walls, then the robot's movement capability is maintained, but the robot cannot operate when filters are clogged
Solution Approach 1:
The bypass mechanism is designed to dynamically respond to filter clogging conditions through tilt angle sensors and suction level sensors. When the robot tilts during wall climbing or when suction levels indicate filter clogging, the bypass mechanism automatically opens to allow unfiltered fluid passage, maintaining movement capability under varying operational conditions.
Solution Approach 2:
The system changes the fluid flow parameters by switching between filtered and unfiltered paths based on operational needs. During wall climbing operations, when the robot tilts beyond a threshold angle, the bypass mechanism opens to change the fluid flow characteristics, allowing sufficient fluid intake for movement even with clogged filters.
3Reliability
If the cleaning robot uses filtered fluid for cleaning, then the sanitization effectiveness is improved, but the robot loses cleaning capability when filters are clogged
Solution Approach 1:
The bypass mechanism provides a partial solution by allowing unfiltered fluid to be used only when necessary (when filter is clogged or during wall climbing), while maintaining filtered fluid usage during normal horizontal cleaning operations. This partial action approach ensures cleaning continuity while minimizing the use of unfiltered fluid.
Solution Approach 2:
The system ensures continuous cleaning action by providing an alternative unfiltered fluid path when the filtered path becomes blocked. The bypass mechanism maintains the continuity of useful cleaning action by allowing the robot to continue circulating and cleaning pool surfaces even when the filter is clogged, preventing complete operational interruption.
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 bypass mechanism enables the cleaning robot to move and clean pool surfaces and fluids effectively even with clogged filters, ensuring continuous operation and improved sanitization by allowing unfiltered fluid to be used for movement and filtration, thus maintaining pool cleanliness.
Implementation Method 1
The bypass mechanism may be arranged to allow fluid to pass through the bypass mechanism when the cleaning robot is tilted by at least a predefined tilt angle
Implementation Method 2
The bypass mechanism may be arranged to be opened in response to a suction level developed within an internal space formed in the housing
Data Source
AI summary
A cleaning robot may be provided and may include a housing comprising at least one inlet and an outlet; a filtering unit for filtering fluid; a bypass mechanism for bypassing the filtering unit; and a fluid suction unit that is arranged to direct towards the outlet fluid that (a) passes through the at least one inlet and (b) passes through at least one out of the filtering unit and the bypass mechanism.