Bubble Drum Washing Control for Low-Water Fabric Protection
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Solution Overview
Problem
Conventional washing machines require large amounts of water and energy for washing, potentially damaging delicate laundry due to friction and water impact during rotation, and result in high detergent consumption.
Innovation Solution
A washing machine and control method that uses bubbles for washing, reducing water consumption by generating and controlling bubble formation based on load, with a system to supply wash water and detergent efficiently, and using bubbles as a cushion to minimize friction between laundry items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional washing machines use large amounts of water to fill the space between water tub and rotary drum, then washing can be performed, but water consumption increases and energy consumption increases to heat the water
Solution Approach 1:
The patent extracts the essential washing function from bulk water and concentrates it into bubbles. Instead of filling the entire space between the water tub and rotary drum with water, the system generates bubbles that contain high-concentration detergent on their surfaces, achieving effective washing with minimal water usage.
Solution Approach 2:
The patent changes the physical state and concentration parameters of the washing medium. By transforming water into bubbles with high-concentration detergent surfaces, the system achieves superior washing efficiency per unit of water, thereby reducing both water and energy consumption.
2Object-affected harmful factors
If conventional washing machines rotate the rotary drum to wash laundry, then washing action is achieved, but delicate laundry such as wool or silk may be damaged due to friction and falling
Solution Approach 1:
The patent applies beforehand cushioning by using bubbles as a protective medium between the rotary drum and delicate laundry. The bubbles form a cushioning layer that reduces impact forces and friction during the washing process, preventing damage to delicate fabrics while maintaining washing effectiveness.
Solution Approach 2:
The patent introduces bubbles as an intermediary substance between the mechanical action of the rotary drum and the laundry. This intermediary layer of bubbles performs the washing function through gentle agitation and high-concentration detergent action, eliminating direct harmful contact between drum and delicate fabrics.
3Productivity
If conventional washing machines use friction between water and laundry to wash, then washing can be performed, but water and energy consumption increase
Solution Approach 1:
The patent replaces the conventional mechanical washing system (bulk water movement and drum friction) with a chemical-biological system based on bubble dynamics. Bubbles provide washing action through their unique physical properties and high-concentration detergent surfaces, achieving effective washing with minimal mechanical agitation and water usage.
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
Improves washing efficiency while reducing water and energy usage, minimizes damage to delicate items, and enhances washability with high-concentration detergents on bubble surfaces.
Implementation Method 1
heating concentrated detergent liquid including the wash water and the detergent mixed with each other
Implementation Method 2
generating and supplying bubbles into the water tub when the temperature of the heated concentrated detergent liquid reaches a predetermined bubble generation temperature
Data Source
AI summary
A washing control method that is capable of controlling laundry to be effectively washed with bubbles depending upon load of a washing machine. The washing control method includes supplying wash water containing detergent into a space between a lower portion of a rotary drum and a lower inner surface of a water tub; heating the wash water containing detergent; generating and supplying bubbles into the rotary drum; and washing laundry with the supplied bubbles.