Washer Drum Water Ejection for Door Bubble Removal
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Solution Overview
Problem
Conventional laundry treatment apparatuses face issues with bubbles and contaminants remaining on the door and drum surfaces, leading to reduced washing efficiency and potential user errors, due to their design which does not effectively manage water flow and pressure, resulting in leaks and inefficient washing.
Innovation Solution
The laundry treatment apparatus incorporates a tub, drum, and ejection unit with a chamber system that uses centrifugal force and pressure reduction to guide and discharge water to the door and drum surfaces, ensuring thorough washing and preventing impurities from sticking to laundry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between the introduction aperture and the upper end of the drum is minimized to reduce apparatus volume, then the apparatus size is reduced, but bubbles and contaminants easily remain on the door and drum surfaces
Solution Approach 1:
The patent extracts the harmful bubbles and contaminants from the door and drum surfaces by introducing a water ejection system that directs water flow to these surfaces, washing away the accumulated impurities and separating them from the washing chamber
Solution Approach 2:
The patent uses water as an intermediary substance to remove bubbles and contaminants. The ejection unit introduces water to the door and drum surfaces, using the water flow as a mediator to carry away harmful factors without requiring increased apparatus volume
2Power
If water pressure in the additional flow channel is excessively increased to improve washing effectiveness, then washing power is enhanced, but the flow channel may break causing water leakage or backward flow
Solution Approach 1:
The patent segments the water flow system into multiple channels with different functions. The additional flow channel is separated from the main washing channel, allowing independent pressure control and flow management to prevent system failure while maintaining washing effectiveness
Solution Approach 2:
The patent provides beforehand cushioning by designing the additional flow channel with pressure regulation features and backup pathways. This prevents catastrophic failure when high pressure is applied, cushioning the system against potential damage from excessive pressure
3Stability of the object's composition
If the tub is made relatively high to avoid minimizing volume, then structural stability is improved, but bubbles generated during washing are not effectively managed and remain on the door
Solution Approach 1:
The patent replaces the reliance on gravitational drainage (mechanical system) with an active water ejection system. Instead of depending on water naturally draining from the door surface, the system uses controlled water injection to actively wash away bubbles, making the solution independent of tub height
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 design effectively removes bubbles and contaminants from the door and drum surfaces, enhancing washing efficiency and preventing leaks, thereby ensuring complete washing cycles and minimizing user errors.
Implementation Method 1
an ejection unit configured to eject water introduced into the supply aperture to at least one of the door or to the drum
Implementation Method 2
The laundry treatment apparatus incorporates a tub, drum, and ejection unit with a chamber system that uses centrifugal force and pressure reduction to guide and discharge water to the door and drum surfaces
Data Source
AI summary
A laundry treatment apparatus includes a tub body configured to store water, a tub cover configured to define an upper surface of the tub body, an introduction aperture defined through the tub cover, a supply aperture provided in the tub cover, and configured to enable supply of water into the tub body, a drum that is rotatably provided in the tub body, and that is configured to receive laundry, the drum including an opening in communication with the introduction aperture, a door configured to open and close the introduction aperture, and an ejection unit configured to eject water introduced into the supply aperture to at least one of the door or to the drum.