Integrated Detergent Mixing Module for Uniform Washer Dosing

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Solution Overview

Problem

Existing laundry washing machine detergent mixing systems are complex and cumbersome, posing difficulties in efficient detergent and water mixing.

Innovation Solution

A simplified detergent supply system that recirculates water within a mixing chamber to dissolve detergent uniformly, with a dispenser and mixing chamber forming a module connectable to the washing machine casing, featuring a delivery pump and a user-selectable interface for washing programs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a detergent mixing system is implemented, then detergent and water can be mixed, but the system becomes complex and cumbersome

Engineering Contradiction:
Improveease of useVSAvoidconstructional complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The dispenser and mixing chamber are merged into a single integrated module that is connectable to the washing machine casing. This combination eliminates the need for separate detergent storage and mixing components, thereby reducing constructional complexity while maintaining the functionality of detergent preparation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mixing chamber serves multiple functions: it stores detergent, mixes detergent with water, and delivers the solution to the washing machine. This multi-functionality reduces the need for separate components, simplifying the overall system construction while ensuring efficient detergent preparation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If detergent is mixed with water in a separate mixing chamber, then uniform detergent solution is achieved, but the system becomes cumbersome

Engineering Contradiction:
Improveuniform mixingVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mixing chamber is integrated with the dispenser to form a single module, combining storage and mixing functions in one component. This integration maintains uniform mixing capability while reducing the number of separate parts, thereby decreasing system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Detergent is pre-loaded into the mixing chamber module before use. The module is then connected to the washing machine, and water is added to create the detergent solution. This preliminary preparation simplifies the overall system by eliminating the need for complex real-time detergent dispensing mechanisms during the washing cycle.

Inventive Principle:
Principle #10Preliminary action

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 achieves a reduced constructional complexity and ease of use by ensuring a uniform detergent solution is prepared efficiently for washing cycles, improving the washing process.

Implementation Method 1

a recirculating circuit adapted to circulate said water through said mixing chamber

Methodology Applied
Scientific EffectRecirculation:

Implementation Method 2

dissolve detergent uniformly

Methodology Applied
Scientific EffectDissolution: Solvation

Data Source

PatentEP2540902B1Laundry washing machine
Publication Date: 2020.05.13 ELECTROLUX HOME PROD CORP NV
  • EP2540902B1 patent drawingFigure 1
  • EP2540902B1 patent drawingFigure 2
  • EP2540902B1 patent drawingFigure 3~4

AI summary

The present invention relates to a laundry washing machine (1) comprising a casing (2) supporting a washing tub (3) external to a washing drum (4) suitable to receive the laundry to be washed and a detergent supply system (5;35;55;65;105) comprising a mixing chamber suitable (6;56;86;106) to receive detergent (D) and water (W) and comprising a mixing device (20;40;100) suitable to mix the detergent (D) and the water (W) in the mixing chamber (6;56;86;106) to form a washing solution (S). The mixing chamber (6;56;86;106) and the mixing device (20;40;100) are disposed inside the casing (2) and the mixing chamber (6;56;86;106) comprises an inlet (7;57;87;107) accessible from outside the casing (2) for the insertion of the detergent (D) and an outlet (14;94) for delivering the washing solution (S) in the washing tub (3).