Multi-Chamber Detergent Cartridge for Precise Dishwasher Dosing
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Solution Overview
Problem
Current domestic dishwashers require users to manually measure and add detergents for each cycle, leading to inconsistent dosages, inefficiencies, and limitations in supporting complex washing programs, resulting in unsatisfactory wash results and potential environmental issues.
Innovation Solution
A cartridge-based detergent dosing system with separate chambers for multiple detergents, allowing precise dosage control and selective addition during washing cycles, enabling the use of individual cleaning agents and regulating water hardness without a water softening facility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If users manually add detergent to the adding device for each washing cycle, then the adding device can be simple in structure, but the dosage precision deteriorates and user convenience deteriorates
Solution Approach 1:
The cartridge is divided into multiple separate chambers, each dedicated to storing a specific detergent type. This segmentation enables precise dosage control for each detergent while maintaining a simple overall device structure, as the cartridge itself performs the dosing function without requiring complex external dosing mechanisms.
Solution Approach 2:
The cartridge is pre-filled with precise quantities of different detergents in separate chambers during manufacturing. This preliminary action eliminates the need for users to manually measure and add detergents, ensuring consistent precise dosing while keeping the device structure simple.
2Device complexity
If all detergent is dispensed into the washing compartment at once, then the adding device structure can be simple, but the adaptability to complex washing programs deteriorates
Solution Approach 1:
The cartridge is divided into multiple separate chambers, each dedicated to storing a specific detergent type. This segmentation enables selective dispensing of different detergents at different times during the washing cycle, supporting complex washing programs while maintaining a simple overall structure.
Solution Approach 2:
The dosing system incorporates movable dosing elements that can be dynamically positioned to access different chambers at different times during the washing cycle. This dynamic capability enables selective dispensing for complex washing programs without requiring a complex multi-device system.
3Measurement precision
If the adding device is sized for precise single-cycle dosage, then dosage precision improves, but the loss of substance increases when multiple cycles are needed
Solution Approach 1:
The cartridge is divided into multiple separate chambers, each containing a precise dosage for one washing cycle. This segmentation maintains precise dosing while allowing the entire cartridge to be used across multiple cycles, eliminating the waste associated with replacing partially-used detergent.
Solution Approach 2:
The cartridge is designed to provide continuous useful action across multiple washing cycles through its multi-chamber structure. Each chamber contains precisely dosed detergent for one cycle, and the system continuously dispenses from different chambers as needed, eliminating the interruption and waste associated with manual refilling.
Data Source
AI summary
A cartridge for a water-conducting domestic appliance, in particular a domestic dishwasher, which has a detergent dosing system having at least one detergent dispenser for receiving at least one cartridge, wherein the cartridge has separate chambers for storing at least two detergents, the cartridge including a cartridge housing having at least two chambers formed therein, wherein each chamber has a storage capacity for storing detergent which is greater than the quantities required for one washing cycle.