Washing Machine Spin-Up Using Retained Water to Prevent Imbalance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Washing machines experience vibrations and imbalance during spin cycles due to uneven distribution of wash load, leading to strain, noise, and potential damage, which existing balance rings do not effectively prevent or correct.
Innovation Solution
Maintaining a minimum amount of wash water (at least 50% of the wash cycle amount) during the spin cycle to ensure the center of mass remains aligned, and gradually draining water to allow articles to settle evenly, thereby minimizing imbalance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If balance rings with fluid or movable objects are used to counter imbalance, then vibration and noise are reduced, but the actual imbalance of articles is not prevented or corrected and device complexity increases
Solution Approach 1:
The patent applies preliminary action by maintaining a minimum amount of water in the basket during the spin cycle before imbalance occurs. This preventive measure ensures that articles are evenly distributed from the start, preventing imbalance rather than correcting it afterward. The water acts as a preliminary balancing medium that eliminates the need for complex balance rings.
2Stability of the object's composition
If balance rings are used to counter out of balance load, then vibration is reduced, but the center of mass of articles remains off center and device complexity increases
Solution Approach 1:
The patent uses water as an intermediary substance between the basket and the articles. The water acts as a mediator that helps distribute articles evenly and maintain center of mass alignment during the spin cycle. This simple fluid intermediary replaces complex mechanical balance rings while achieving the same stability effect.
3Productivity
If articles are allowed to stick together after draining, then washing efficiency is maintained, but center of mass becomes off center causing vibration
Solution Approach 1:
The patent performs preliminary action by maintaining water in the basket during the spin cycle to prevent articles from sticking together in an imbalanced configuration. The water acts as a preliminary distribution medium that ensures even article placement before the spin cycle completes, preventing vibration while maintaining washing efficiency.
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
Prevents and corrects imbalances in the wash load, reducing vibrations, noise, and wear on machine components by maintaining a stable center of mass and ensuring even distribution of articles during rotation.
Implementation Method 1
maintaining at least a minimum amount of wash water, VSC1, in the basket and tub... ensure the center of mass remains aligned
Data Source
AI summary
A method for washing articles in a wash chamber of the washing machine appliance is provided. The method includes providing a tub and a basket, the basket rotatably positioned within a tub, with an amount of wash water for washing one or more articles positioned in the basket. After the wash cycle, the method initiates a spin cycle while maintaining at least a minimum amount of wash water from the wash cycle in the basket and tub. Maintaining the wash water during the initiation of the spin cycle can assist in preventing an imbalance of the wash load. For example, the wash load may be more evenly distributed during the draining of the wash water, as the wash basket is spinning during such draining of the wash water.