Dishwasher Detergent Refill Segmentation for Timed Release
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Solution Overview
Problem
Automatic dishwashers face performance issues due to all cleaning compositions being released simultaneously, leading to incomplete cleaning and the need for pre-rinsing and towel drying, as existing dispensing devices struggle to accurately sense and distinguish between different wash cycles, resulting in suboptimal cleaning performance.
Innovation Solution
A personalized cleaning composition dispensing device equipped with a wash cycle sensing system using temperature and water flow sensors, a data storage unit, and a microprocessor that learns the wash cycles to determine the optimal release points for cleaning compositions, allowing for sequential release during specific wash phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all cleaning compositions are released simultaneously in the dishwasher, then the dispensing device structure is simple, but the cleaning performance is insufficient and requires compensatory behaviors like pre-rinsing and towel drying
Solution Approach 1:
The cleaning composition refill is divided into multiple separable sections (prewash section, main wash section, rinse section) that can be separated by push ribs. Each section contains different cleaning compositions and is released at different wash cycles, enabling sequential release to improve cleaning performance while maintaining a relatively simple dispensing structure.
2Measurement precision
If the dispensing device uses temperature and water flow sensing with data storage and microprocessor to learn wash cycles, then the cleaning composition release timing is optimized, but the device complexity increases
Solution Approach 1:
The dispensing device automatically learns and adapts to the dishwasher's wash cycles by using temperature and water flow sensors to detect cycle patterns, storing this data in memory, and processing it with a microprocessor. The system self-adjusts to identify prewash, main wash, and rinse cycles without user intervention, optimizing cleaning composition release timing while managing complexity through automated adaptation.
3Reliability
If the cleaning compositions are sequentially released at different wash cycles, then the cleaning performance is maximized, but the difficulty of detecting and measuring wash cycles increases
Solution Approach 1:
The dispensing device uses temperature and water flow sensors to continuously monitor wash cycle conditions and provides feedback to the microprocessor. The system analyzes this feedback data to distinguish between different wash cycles (prewash, main wash, rinse) and adjusts the release timing of cleaning compositions accordingly, enabling sequential release to maximize cleaning performance while managing the complexity of wash cycle detection.
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
The device ensures the right cleaning composition is released at the right time, enhancing cleaning performance and eliminating the need for pre-rinsing and towel drying, by adapting to various wash programs and consumer behavior, thereby optimizing dishwasher performance.
Implementation Method 1
wash cycle sensing system using temperature and water flow sensors
Implementation Method 2
wash cycle sensing system using temperature and water flow sensors
Data Source
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AI summary
A cleaning composition dispensing device (10) for use in an automatic dishwasher is provided for dispensing the right cleaning composition at the right time during a wash cycle. The device includes wash cycle sensing system that controls the release of cleaning composition via temperature and water flow data measured with respect to time. The device includes a refill compartment (22) receiving a multi-section refill (120) including at least two cleaning composition sections (126, 128, 130) divided by separable seams (124). The multi-section refill (120) separates into individual cleaning composition sections (126, 128, 130) during placement in the refill compartment (22) that fall into the slots forming the refill compartment.