Dishwasher Detergent Dissolving Chamber for Tablet Residue Control
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Solution Overview
Problem
Detergent tablets in dishwashers often do not dissolve properly during the wash cycle, leading to residue buildup and potential spotting on dishes, as they are not dispensed at the optimal time and can clump, causing poor wash results and unwanted marks.
Innovation Solution
A dissolving chamber integrated into the storage container, accessible for user maintenance, where detergent is fed during operation, ensuring timely dissolution and preventing residue formation, with a fine-mesh grid base and strategically positioned spray device for effective fluid distribution and detergent disintegration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detergent tablets are placed in the dishwasher before the first wash cycle, then the detergent is available in the dishwasher, but the detergent dissolving response is negatively influenced and wash result is poor
Solution Approach 1:
The detergent dispensing system is segmented into multiple dosing chambers (first dosing chamber and second dosing chamber) that release detergent at different times during the wash cycle. The first dosing chamber has perforations for early release while the second dosing chamber releases detergent later, ensuring proper dissolution timing for each portion of the detergent tablet.
Solution Approach 2:
The detergent tablet is pre-positioned in the dosing container with the first dosing chamber already prepared with perforations. The control unit is pre-programmed to open the first dosing chamber at the optimal time during the wash cycle, ensuring that detergent dissolution begins at the correct moment rather than waiting for random dissolution.
2Reliability
If detergent tablets are placed in a basket before the cleaning process, then the detergent is available during the entire cleaning process, but the detergent tablets do not dissolve sufficiently and leave unwanted clumps
Solution Approach 1:
The detergent tablet is divided into multiple portions through separate dosing chambers. The first dosing chamber releases a portion of detergent early in the cycle, while the second dosing chamber releases another portion later. This segmentation ensures that each portion dissolves completely in the wash water rather than forming clumps.
Solution Approach 2:
The detergent is released in periodic doses rather than all at once. The control unit opens the first dosing chamber at a specific time, then opens the second dosing chamber at a later time. This periodic release pattern allows each detergent portion to dissolve completely before the next portion is released, preventing clump formation.
3Reliability
If detergent tablets are placed in a basket before the cleaning process, then the detergent is available during the cleaning process, but the detergent tablets might come into contact with the dishes and form spots
Solution Approach 1:
The detergent dissolution process is extracted from the treatment compartment where dishes are located. The dosing container with dissolving chambers is positioned separately from the dish rack, and detergent is released into the wash water rather than directly onto or near the dishes. This separation prevents detergent clumps from contacting the dishes and forming spots.
Solution Approach 2:
The wash water acts as an intermediary medium between the detergent tablet and the dishes. Detergent is released into the wash water where it dissolves and disperses before any contact with dishes can occur. The perforated dosing chambers allow controlled dissolution in the water, preventing direct detergent-dish contact that would cause spotting.
4Reliability
If the dissolving chamber is disposed on the storage container, then the detergent can dissolve properly in the dissolving chamber, but the structural outlay increases
Solution Approach 1:
The dosing container with dissolving chambers is merged with the spray arm assembly. The dosing container is positioned on the spray arm, and the spray arm itself serves as part of the dissolution and distribution system. This merging reduces the need for separate dissolving chamber structures while maintaining effective detergent dissolution and distribution.
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
Ensures proper detergent dissolution during the wash cycle, preventing residue buildup and spotting, while maintaining low structural complexity and user accessibility for cleaning, ensuring effective cleaning performance and reduced maintenance.
Implementation Method 1
a spray device (21) supplied with fluid to spray the dissolving chamber (16)
Implementation Method 2
at least one chamber wall and a base of the dissolving chamber to be configured to allow the passage of fluids
Data Source
AI summary
A dishwasher includes a device for adding detergent that can be sealed with a flap-type lid and which is set back in the inside door of the dishwasher and is arranged at an angle on an inclined plane in relation to the plane of the inner side of the door. During the cleaning process, the detergent falls into a dissolving chamber, which is arranged underneath the device for adding detergent, according to the program, wherein the bottom of the dissolving chamber consists of a fine-mesh grid whereat the detergent can be dissolved.