Dishwasher Final-Rinse Restart for Delayed Washware Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dishwashers with stationary washing processes often fail to achieve optimal drying results due to improper removal of washware, leading to condensation, corrosion, and residue formation, requiring increased resource consumption and operator intervention.
Innovation Solution
A dishwasher with a controller that allows for an additional final-rinse step to be initiated by the user after the washing step, even if the washware has remained in the cleaning chamber for an extended period, ensuring optimal drying and hygiene by decoupling the final-rinse operation from the main washing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the washware remains in the dishwasher after the cleaning program has been completed, then the operator convenience is improved, but the drying result deteriorates due to condensation and residue formation
Solution Approach 1:
The system performs a preliminary check of the residence time and automatically initiates a corrective final-rinse step before the washware is removed, preventing condensation and residue formation that would occur if the washware remained too long in the dishwasher
Solution Approach 2:
The controller continuously monitors the residence time of washware in the cleaning chamber and provides feedback to determine when to enable the operator control element or automatically restart the final-rinse step, ensuring optimal drying conditions are maintained
2Manufacturing precision
If the final-rinse step is decoupled and can be restarted after washing, then the drying quality is improved, but the device complexity increases
Solution Approach 1:
The existing operator control element is given multiple functions: it can start a new cleaning program or, when enabled by the controller, restart the final-rinse step. This avoids adding separate control elements while providing the needed functionality
Solution Approach 2:
The controller automatically manages the decoupled final-rinse process by monitoring residence time and enabling the appropriate control element, reducing the need for complex manual intervention or additional control mechanisms
3Manufacturing precision
If the entire cleaning program is repeated to correct poor drying results, then the drying quality is improved, but the productivity decreases due to increased time and resource consumption
Solution Approach 1:
The cleaning program is segmented into independent phases (washing phase and final-rinse phase), allowing the final-rinse step to be restarted independently without repeating the entire washing process, thus improving drying quality while maintaining productivity
Solution Approach 2:
Instead of repeating the entire cleaning program, the system applies partial action by restarting only the final-rinse step, which is sufficient to correct drying issues without the excessive resource consumption of a full program repetition
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 improves drying results and hygiene by allowing for a controlled final-rinse and drying process, even if washware is not removed promptly, reducing the need for repeated cycles and resource consumption.
Implementation Method 1
The dishwasher is designed to apply at least one washing liquid and at least one final-rinse liquid to the washware in the cleaning chamber
Implementation Method 2
the effects of the rinse aid, which is generally added to the final-rinse liquid
Implementation Method 3
The drying step can follow, in which a heated air stream is applied to the washware in the cleaning chamber
Implementation Method 4
condensate forms on the washware, for example in the interior of the glasses, on account of condensation from vapors rising from the wash tank
Data Source
AI summary
The invention proposes a dishwasher, comprising a cleaning chamber for accommodating washware. The dishwasher is designed to apply at least one washing liquid and at least one final-rinse liquid to the washware in the cleaning chamber. The dishwasher has a controller which is designed to carry out at least one cleaning program. The cleaning program comprises at least one washing step, in which the washing liquid is applied to the washware, and at least one final-rinse step, in which the final-rinse liquid is applied to the washware. The dishwasher has at least one operator control element which can be operated by a user. The controller is designed in such a way that the final-rinse step can be carried out at least once on the basis of operation of the operator control element after at least the washing step of the cleaning program has been carried out.