Dishwasher Wash Program Adaptation for Spot-Free Drying
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Solution Overview
Problem
Conventional dishwashers often fail to meet user demands for effective cleaning, drying, low water and energy consumption, and spot-free dishes, as they are limited by preset settings that do not allow for flexible adjustment of wash cycles.
Innovation Solution
A dishwasher with a control device that allows users to enter operating commands for adaptation measures in wash programs, including additional rinse cycles, increased washing fluid quantity, rinse aid addition, extended heating phases, and modified pump-off sequences, to enhance drying and shine effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wash programs are preset with fixed parameters, then the dishwasher is easy to operate, but it cannot meet diverse user demands for effective cleaning, drying, and spot avoidance
Solution Approach 1:
The wash program parameters are made dynamically adjustable through an operating device that allows users to enter adaptation commands. The control device receives these commands and modifies the stored wash program parameters in real-time, enabling the system to adapt to different user needs while maintaining a simple interface for operation.
2Object-affected harmful factors
If additional rinse cycles and extended heating phases are added to improve drying and shine effects, then spot formation on dishes is reduced, but water and energy consumption increase
Solution Approach 1:
The system allows users to adjust specific parameters of the wash program, such as the number of rinse cycles, heating phase duration, and rinse aid dosage. By enabling selective modification of these parameters, users can optimize the balance between achieving spot-free dishes and minimizing energy consumption according to their specific needs.
3Reliability
If wash program parameters are fixed to ensure effective cleaning, then cleaning quality is maintained, but flexibility to adapt to different load types and soiling degrees is lost
Solution Approach 1:
The operating device provides a feedback mechanism where users can observe the wash program parameters and adjust them based on their specific load conditions and soiling degrees. This allows the system to maintain reliable cleaning quality by preserving the core wash cycle structure while adapting to different scenarios through user input.
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 flexibility enables improved drying and shine effects on dishes, reducing spot formation and allowing users to customize wash cycles based on their needs, while maintaining efficient water and energy use.
Implementation Method 1
a heating device (24) for heating up the washing fluid S to a predetermined temperature during a heating phase H
Implementation Method 2
a drain pump (31) for pumping off washing fluid S from the washing compartment (7) during pump-off phases
Implementation Method 3
a circulating pump (22) for circulating the washing fluid S through the washing compartment (7) during circulating phases
Data Source
AI summary
A dishwasher, especially a household dishwasher, includes a control device, in which at least one wash program for carrying out a wash cycle comprising a number of part wash cycles for cleaning and/or drying items to be washed is stored, and an operating device for entering operating commands for the control device. At least one operating command for carrying out one or more adaptation measures on at least one of the wash programs can be input at the operating device to improve avoidance of spots on the items to be washed and/or the drying result on the washed items, when the wash cycle based on the adapted wash program is carried out.