Dispenser for a laundry washing machine with overflow configuration
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Solution Overview
Problem
In laundry washing machines, fluid contamination between adjacent detergent trays occurs due to unintended spray, leading to undesired release of substances and decreased performance, necessitating a solution to reduce fluid transfer and enhance rinsing efficiency.
Innovation Solution
The integration of a screen with hexagonal through openings between sprayers and detergent trays minimizes fluid splashing by directing fluid flow through specific portions of the screen into each tray at different time periods, preventing lateral spray and optimizing detergent dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high pressure spray is used to rinse trays, then rinsing efficiency is improved, but fluid contamination to adjacent trays increases
Solution Approach 1:
The screen structure segments the spray flow into controlled pathways through its aperture pattern, allowing high-pressure rinsing of one tray while preventing spray from contaminating adjacent trays. The segmented aperture design creates discrete fluid channels that maintain rinsing effectiveness while isolating adjacent compartments.
Solution Approach 2:
The screen acts as an intermediary element positioned between the spray source and adjacent trays. It mediates the high-pressure fluid flow by allowing necessary spray through its apertures while blocking lateral contamination to neighboring trays, thus enabling efficient rinsing without cross-contamination.
2Area of stationary object
If trays are positioned adjacent to each other, then space utilization is improved, but fluid transfer between trays occurs
Solution Approach 1:
The screen serves as a mediating structure positioned between adjacent trays, enabling close spacing for space efficiency while preventing unwanted detergent and fluid transfer. The screen's aperture design allows necessary fluid passage while blocking lateral contamination between neighboring compartments.
Solution Approach 2:
The screen introduces local quality differentiation by creating zones of controlled permeability. Different regions of the screen structure provide selective fluid passage, allowing local fluid dynamics to be optimized for each tray while maintaining overall system compactness and preventing cross-contamination.
3Manufacturing precision
If spray is directed at a particular tray, then dispensing precision is improved, but inadvertent contact with adjacent trays occurs
Solution Approach 1:
The screen segments the spray delivery system into tray-specific zones, allowing precise targeting of each tray while preventing spray from one tray from inadvertently contacting adjacent trays. The segmented aperture pattern creates distinct fluid pathways for each compartment.
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
This solution effectively reduces fluid contamination between trays, allowing for controlled and efficient dispensing of detergents at desired times, thereby enhancing cleaning performance and efficiency.
Implementation Method 1
at least one screen disposed between at least one sprayer and the first liquid detergent tray and/or the second liquid detergent tray to receive fluid from at least one sprayer and reduce fluid splashing to the other corresponding detergent tray
Data Source
AI summary
A dispenser for a laundry washing machine. The dispenser includes one or more screens adjacent one or more detergent trays. The one or more screens reduce the splashing of fluid to adjacent detergent trays. The one or more screens, or portions thereof, may include a plurality of though openings in fluid communication between one or more sprayers and one or more detergent trays.