Dual-Mode Washing Method Alternating Impact and Zero-Gravity Cycles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional washing methods either damage laundry fabrics using water-based washing liquids or fail to effectively remove water-soluble stains with non-aqueous solvents, and existing hybrid modes do not optimize stain removal for a single laundry load.
Innovation Solution
A washing method combining impact washing mode and simulated zero-gravity washing mode in a single cycle, utilizing a laundry tub with a bumpy curved surface and baffles, where the liquid level is adjusted between washing steps to enhance stain removal, allowing both modes to be applied to the same load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If water-based washing liquid is used, then water-soluble stains are removed, but laundry fabrics are damaged, shrink, or harden
Solution Approach 1:
The patent changes the physical parameter of the washing liquid from water-based to non-aqueous (petroleum-based solvent), which fundamentally alters the washing mechanism. This parameter change allows the washing liquid to remove stains through dissolution in a non-polar medium, avoiding the harmful effects of water on fabric while maintaining effective stain removal capability
Solution Approach 2:
The patent utilizes the phase transition properties of non-aqueous solvents to achieve effective washing. The petroleum-based solvent operates in a different phase behavior compared to water, allowing it to penetrate and dissolve stains without causing fabric damage, shrinkage, or hardening that occurs with water-based washing
2Object-affected harmful factors
If nonaqueous washing liquid is used, then fabric damage is avoided, but water-soluble stains cannot be reliably removed
Solution Approach 1:
The patent applies parameter changes by selecting a specific type of non-aqueous washing liquid (petroleum-based solvent) and controlling its physical and chemical parameters. This enables the solvent to effectively remove water-soluble stains through a different mechanism than water, while maintaining the advantage of avoiding fabric damage
Solution Approach 2:
The patent employs a composite approach by combining the non-aqueous washing liquid with specific washing conditions and device configurations (such as the simulated zero-gravity environment). This composite system achieves comprehensive stain removal capability while preserving fabric integrity
3Manufacturing precision
If impact washing mode is used, then washing effect is improved, but fabric damage increases
Solution Approach 1:
The patent applies the anti-weight principle by creating a simulated zero-gravity environment within the washing device. This counteracts the gravitational force that causes laundry to fall and impact the tub wall during conventional washing. By neutralizing this gravitational effect, the system achieves effective washing through fluid dynamics without the harmful impact forces on fabric
Solution Approach 2:
The patent replaces the mechanical impact-based washing system with a fluid dynamics-based system. Instead of relying on laundry falling and colliding with the tub wall (mechanical impact), the system uses the flow and circulation of non-aqueous washing liquid in a simulated zero-gravity environment to achieve washing, thereby eliminating fabric damage from impact while maintaining washing effectiveness
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
This approach improves stain removal efficiency by alternating between impact and zero-gravity washing modes, minimizing fabric damage and effectively removing stains without using organic or petroleum-based solvents, making the process environmentally friendly.
Implementation Method 1
the laundry tub is spun, which washes the laundry held in the laundry tub by suspending it in the washing liquid... bumps that are continuous in the peripheral direction are provided on the inner wall surface of the laundry tub, and this tub is spun to generate eddy currents at the bumps on the inner wall surface of the laundry tub, in the washing liquid on the inner wall surface side of the laundry tub
Implementation Method 2
This vortex-like rotational flow is formed in the various recesses, so the washing liquid that fills the casing flows at different speeds in a substantially concentric circular shape in the radial direction of the laundry tub
Implementation Method 3
the washing liquid that fills the casing flows at different speeds in a substantially concentric circular shape in the radial direction of the laundry tub, forming a pressure distribution in the radial direction of the laundry tub. The pressure distribution formed in the radial direction of the laundry tub suspends the laundry within the laundry tub
Implementation Method 4
The pressure distribution formed in the radial direction of the laundry tub suspends the laundry within the laundry tub, so the result is that the laundry that is drifting suspended in the washing liquid spreads out
Implementation Method 5
the laundry tub is spun so that the laundry is moved to the upper side of the laundry tub by a baffle (vane) that protrudes from the inner wall surface of the laundry tub, after which the laundry is allowed to fall under its own weight. The laundry is washed by the impact caused by the collision with the inner wall surface of the laundry tub when the laundry falls
Data Source
AI summary
A washing method comprising: suspending and washing laundry in a washing liquid that is supplied to a laundry tub; agitating and washing the laundry with a baffle in the washing liquid at a liquid level that is lower than a liquid level of the washing liquid that is supplied to the laundry tub during the suspending and washing of the laundry; and increasing or decreasing a liquid level of the washing liquid continuously between the suspending and washing of the laundry and the agitating and washing of the laundry while the laundry tub is spinning.