Rinsing system for dishwashers, and dishwasher comprising the rinsing system
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Solution Overview
Problem
Traditional dishwashers experience self-contamination during the rinsing process due to simultaneous operation of rinsing sprayers and random kitchenware arrangement, leading to reduced rinsing quality and increased water, detergent, and energy consumption.
Innovation Solution
A rinsing system for dishwashers that directs water flow to a single group of rinsing sprayers initially, then sequentially activates upper and lower groups, using differently shaped and atomized nozzles, and adjusts water quantity based on kitchenware type, with a distribution device and control unit to optimize water use and reduce contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple groups of rinsing sprayers operate simultaneously, then rinsing coverage is improved, but self-contamination increases and rinsing quality deteriorates
Solution Approach 1:
The rinsing process is segmented into multiple sequential phases where different groups of sprayers operate at different times. The control unit activates sprayer groups sequentially rather than simultaneously, dividing the rinsing operation into staged segments that prevent contamination while maintaining comprehensive coverage over time.
Solution Approach 2:
The rinsing sprayers operate in periodic cycles with alternating activation of different sprayer groups. Each group operates for a specific duration followed by a pause before the next group activates, creating a periodic pattern that allows previously rinsed areas to settle before being exposed to new water streams, thereby preventing self-contamination.
2Area of stationary object
If water flow is distributed to multiple sprayer groups simultaneously, then rinsing coverage is improved, but water consumption increases
Solution Approach 1:
Water flow is segmented and directed to different sprayer groups in sequential phases rather than being distributed simultaneously to all groups. Each phase concentrates water flow on a specific group, ensuring efficient water utilization while achieving comprehensive coverage through the cumulative effect of multiple phases.
Solution Approach 2:
Each sprayer group receives concentrated water flow (excessive action) during its active phase, rather than all groups receiving partial flow simultaneously. This approach ensures that each group operates at optimal effectiveness when activated, achieving thorough rinsing with reduced overall water consumption.
3Productivity
If high power washing pump is used, then washing efficiency is improved, but energy consumption increases
Solution Approach 1:
The high-power washing pump operates in periodic cycles with alternating active and idle phases, rather than running continuously at full power. During active phases, the pump delivers high-power washing; during idle phases, it reduces power consumption while the rinsing process continues with lower-power sprayer operation.
Solution Approach 2:
The system dynamically adjusts pump power output based on operational phase requirements. The pump operates at high power during washing phases when maximum cleaning efficiency is needed, and transitions to lower power or idle state during rinsing phases, optimizing energy consumption according to actual process needs.
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 approach minimizes self-contamination, enhances rinsing efficiency, reduces water and energy consumption, and improves rinsing quality by optimizing water distribution and mechanical action.
Implementation Method 1
using differently shaped and atomized nozzles
Data Source
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AI summary
A rinsing system (30) for dishwashers, comprising: - a connection device (12) to a water system, adapted to connect the rinsing system (30) to the water system for the inflow of a rinse water flow; - an uncoupling device (14) from the water system, adapted to prevent the effects of any unwanted vacuums; - at least two groups of rinsing sprayers (18s, 18i), adapted to dispense the rinse water toward kitchenware to be washed; - a system of ducts, adapted to guide the rinse water flow from the connection device (12) to the at least two groups of rinsing sprayers (18s, 18i); and at least one distribution device (22s, 22i), adapted to adjust the distribution of the rinse water flow between the at least two groups of rinsing sprayers (18s, 18i).