Wet Vacuum Cleaning Tray with Turbulence for Roller Brush Rinsing
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Solution Overview
Problem
Wet vacuum cleaners, especially battery-driven models, face challenges in effectively cleaning their roller brushes due to insufficient suction power, leading to bacterial growth and unpleasant odors, and existing cleaning trays do not provide an adequate cleaning result.
Innovation Solution
A cleaning tray with a base and brush channel that includes raised projections with upstream and downstream ramp surfaces, creating turbulence to enhance debris removal and liquid flow, and a method involving different cycles of liquid delivery and suction to ensure thorough cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cleaning tray is used to rinse the roller brush, then cleaning effectiveness is improved, but the device complexity increases
Solution Approach 1:
The roller brush cleans itself by rotating within the brush channel. The brush's own rotation, driven by the cleaning liquid flow and suction, agitates the brush surface to remove debris without requiring external cleaning mechanisms
Solution Approach 2:
The brush channel acts as an intermediary structure that guides cleaning liquid over the roller brush surface. The channel with its raised projection creates a controlled path for liquid flow that ensures comprehensive coverage of the brush
2Reliability
If suction power is increased to improve cleaning result, then cleaning effectiveness is improved, but power consumption increases
Solution Approach 1:
The raised projection on the brush channel creates mechanical agitation and turbulence as the cleaning liquid flows over it. This vibration and turbulence enhance the cleaning action by dislodging debris from the brush surface without requiring additional suction power
Solution Approach 2:
The system uses cleaning liquid flow (hydraulics) as the primary cleaning mechanism. The liquid flow, guided by the brush channel and raised projection, provides the main cleaning force, allowing suction to be used more efficiently for debris removal rather than primary agitation
3Reliability
If the roller brush rotates faster to improve cleaning, then cleaning effectiveness is improved, but the suction power requirement increases
Solution Approach 1:
The raised projection creates turbulence and mechanical agitation in the cleaning liquid flow, which translates to enhanced brush surface cleaning. This passive mechanical agitation complements the brush rotation, allowing effective cleaning at lower rotation speeds and suction power
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 solution effectively removes debris and cleaning liquid from the roller brushes, ensuring a hygienic and efficient cleaning process, even with low power, by introducing turbulence and controlled liquid flow, and allowing for operation in battery-driven appliances.
Implementation Method 1
The turbulence provides improved mixing of debris with cleaning liquid so that debris can be more effectively removed during a cleaning cycle
Implementation Method 2
The rotation of the roller brush creates an under pressure at the location of the downstream ramp surface, thereby drawing cleaning liquid towards it
Implementation Method 3
a suction area faced by the downstream ramp surface
Data Source
AI summary
The invention provides a cleaning tray for a wet floor cleaner, for receiving a head of the wet floor cleaner. The cleaning tray has at least one brush channels for receiving a bottom portion of an outer circumference of a roller brush. At least one raised projection is positioned along the brush channel having an upstream ramp surface and a steeper downstream ramp surface. The projection adds turbulence for improving the cleaning results as well as enabling control of the flow of cleaning liquid around the brush and the cleaning tray, to ensure full soaking of the roller brush as well as cleaning of all of the area of the cleaning tray itself. The invention also provides a cleaning method which may use the cleaning tray.