Laundry Washer Water Supply Assembly for Integrated Water Softening
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Solution Overview
Problem
Existing drawer flush circuits in front-loading laundry washing machines are difficult to integrate with internal water softening units that use ion-exchange resins to remove calcium and magnesium ions from tap water, as they are not compatible with the regeneration process involving brine.
Innovation Solution
A modular water supply assembly that includes a plate-like water delivery member and a discrete flow-diverter module, allowing for separate handling of fresh water and softened water, with an electrically-operated rotatable flow diverter and an electronic control unit to manage water flow effectively, enabling integration with internal water softening devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional drawer flush circuit is used, then the structure is simple, but it is difficult to integrate with internal water softening units that use ion-exchange resins
Solution Approach 1:
The water delivery member is divided into separate functional modules: a first water delivery portion for delivering fresh water to the detergent drawer, and a second water delivery portion for delivering softened water to the ion-exchange resin. This segmentation allows the system to accommodate water softening units without requiring complete redesign of the flush circuit, thereby improving adaptability while maintaining manageable complexity.
Solution Approach 2:
The water delivery member is designed with multi-functionality to serve both fresh water delivery and softened water delivery through its two distinct portions. This universal design enables the detergent dispenser to operate effectively whether or not a water softening unit is present, enhancing adaptability without proportionally increasing complexity.
2Adaptability or versatility
If fresh water is used to flush detergent, then the flushing function is simple, but it cannot effectively handle the regeneration process involving brine
Solution Approach 1:
The system dynamically switches between different water sources (fresh water and softened water) based on the operational mode. During normal detergent flushing, fresh water is used; during ion-exchange resin regeneration, softened water is directed to the brine solution. This dynamic adaptability allows effective handling of the regeneration process while keeping the control mechanism integrated into the existing flush circuit.
3Adaptability or versatility
If a modular design with discrete flow-diverter module is used, then adaptability and flexibility are enhanced, but device complexity increases
Solution Approach 1:
The flow-diverter module is merged with the water delivery member to form an integrated assembly. The first and second water delivery portions are combined within a single member structure, and the flow-diverter is integrated into this member. This merging approach maintains the adaptability and flexibility benefits of modular design while reducing the overall number of separate components and simplifying assembly.
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 modular design simplifies the integration with internal water softening units, reduces production costs, enhances flexibility, and facilitates easier quality control, while ensuring efficient water handling and detergent flushing.
Implementation Method 1
The rotatable flow diverter is interposed between the water inlet of the plate-like water delivery member and a number of internal water channels each ending into a corresponding shower-making portion of the plate-like water delivery member
Implementation Method 2
each of which is vertically aligned to a corresponding detergent compartment of the detergent drawer and is structured for feeding a shower of water droplets by gravity into the detergent compartment located immediately beneath
Data Source
AI summary
A water supply assembly (1) for laundry washing machines (100) provided with a detergent drawer (115) structured for receiving a given amount of detergent, softener or other washing agent and fitted in an extractable manner into a corresponding drawer housing (116). The water supply assembly (1) structured for selectively pouring the water arriving from the fresh-water supply circuit (108) of the laundry washing machine (100) into the detergent drawer (115) so as to selectively flush the detergent, softener or other washing agent out of the same detergent drawer (115).