Multi-Chamber Dishwasher Detergent Cartridge for Precise 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 dosing, inefficiency, 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 dosing based on washing cycle needs, featuring a ventilation chamber to prevent vacuum, openable closures for easy detergent delivery, and a delivery device for controlled dispensing, ensuring accurate and efficient detergent use.
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 dosing precision deteriorates and user convenience deteriorates
Solution Approach 1:
The detergent is pre-filled in the cartridge at the factory with precise quantities for multiple washing cycles. This preliminary action eliminates the need for users to manually measure and add detergent each cycle, ensuring consistent dosing precision while keeping the adding device structure simple.
Solution Approach 2:
The invention uses a disposable cartridge that is pre-filled with detergent. Instead of making the adding device complex with dosing mechanisms, the solution is to replace the detergent frequently with pre-dosed cartridges, achieving precise dosing through the disposable component rather than through complex dosing hardware.
2Device complexity
If users manually add detergent for each washing cycle, then the adding device can be simple, but user convenience deteriorates and time consumption increases
Solution Approach 1:
The cartridge is pre-filled with detergent quantities for multiple washing cycles (e.g., 20-40 cycles) before being delivered to the user. This preliminary action transforms the repetitive manual task into a single insertion operation, significantly improving user convenience while maintaining simple device structure.
Solution Approach 2:
The disposable cartridge eliminates the need for users to repeatedly interact with the adding device. Users simply insert the cartridge once, and it automatically supplies detergent for multiple cycles, transforming a frequent manual operation into a single convenient action.
3Device complexity
If all detergent is dispensed into the washing compartment at once, then the adding device structure can be simple, but the ability to support complex washing programs deteriorates
Solution Approach 1:
The cartridge is divided into multiple separate chambers, each containing different detergent components (e.g., washing detergent, rinsing detergent, bleach). This segmentation allows the detergent dosing system to selectively dispense different detergents at different times during the washing cycle, supporting complex washing programs while keeping the overall device structure simple.
Solution Approach 2:
The cartridge design enables dynamic detergent dispensing where different chambers are opened at different times during the washing cycle. The dosing system can selectively activate specific chambers based on the washing program requirements, providing adaptability for various washing modes without complicating the basic cartridge structure.
4Adaptability or versatility
If the cartridge has chambers for storing multiple detergents, then washing program versatility improves, but cartridge structure complexity increases
Solution Approach 1:
The cartridge is segmented into multiple chambers for different detergents, but each chamber is a simple, identical structure. This segmentation provides washing program versatility while maintaining cartridge structural simplicity through modular, repetitive design elements rather than complex integrated structures.
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 system provides precise detergent dosing for each washing cycle, supports complex washing programs, reduces detergent waste, and maintains detergent stability through controlled dispensing and ventilation, enhancing wash quality and user convenience.
Implementation Method 1
a ventilation chamber (52) is provided in the cartridge (50), which is operatively connected with the chambers (51a-51e) containing the detergents
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.