Dual Dishwasher Dispenser for Precise Wash Aid Dosing
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Solution Overview
Problem
Existing dishwashers lack user control over the amount of wash aid dispensed and require tedious manual filling of single-use dispensers, which can lead to suboptimal cleaning results due to either too much or too little wash aid.
Innovation Solution
A dishwasher with a dual dispensing system that combines a single-use dispenser and a bulk dispenser, allowing users to manually fill the single-use dispenser or automatically refill it from the bulk dispenser, providing precise control over wash aid quantity and eliminating the need for frequent refilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual single use dispenser is used, then the user has control over wash aid quantity for a single cycle, but the user must perform tedious manual filling before each cleaning cycle
Solution Approach 1:
The bulk dispenser is pre-filled with multiple doses of wash aid before use. The system performs preliminary action by storing multiple doses in advance, so that during operation, the user simply needs to activate the automatic dispensing function rather than manually filling the single-use dispenser each time. This resolves the contradiction by eliminating the repetitive manual filling task while maintaining the ability to control wash aid quantity through the controller.
2Ease of operation
If a bulk dispenser is used, then the ease of supplying wash aid is improved, but the user loses control over the amount of wash aid dispensed
Solution Approach 1:
The bulk dispenser is segmented into multiple discrete doses of wash aid. Each dose corresponds to a specific quantity needed for a cleaning cycle. The controller is configured to dispense a predetermined number of doses, thereby maintaining measurement precision and user control over wash aid quantity while benefiting from the automated bulk dispensing system. This segmentation allows the system to combine the ease of bulk dispensing with precise quantity control.
3Ease of operation
If a bulk dispenser is used, then frequent manual refilling is eliminated, but the user cannot selectively use a single use dispenser when desired
Solution Approach 1:
The dispensing system is designed to be dynamic and adaptable. The controller can be configured to operate in different modes: automatic dispensing from the bulk dispenser for convenience, or manual filling of the single-use dispenser for selective use. The system transitions between these modes based on user preference or specific cleaning requirements, thereby maintaining versatility while providing the ease of automated bulk dispensing when needed.
Data Source
AI summary
A dishwasher with both a single use dispenser and a bulk dispenser, where wash aid can be selectively dispensed into a wash chamber of the dishwasher directly from the single use dispenser or indirectly from the bulk dispenser through the single use dispenser.