Laundry treatment apparatus
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Solution Overview
Problem
Conventional laundry treatment apparatuses with minimized volume face issues where impurities and bubbles generated during washing remain on the door, leading to reduced washing efficiency and potential user confusion about wash completion, and require additional components for removal, which can result in water leakage or backward flow when pressure increases.
Innovation Solution
The apparatus incorporates a washing unit that utilizes centrifugal force to wash the door and an ejection unit with a chamber system to guide water towards the door and drum, including a pressure reduction mechanism to prevent water leakage, ensuring effective removal of impurities and bubbles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the volume of the laundry treatment apparatus is minimized, then the distance between the introduction aperture and the upper end of the drum is reduced, but impurities and bubbles remain on the door
Solution Approach 1:
The patent extracts the harmful elements (bubbles and impurities) from the door surface by introducing a water stream through the ejection unit that targets and removes these contaminants, separating the cleaning function from the main washing process
Solution Approach 2:
The patent introduces water as an intermediary substance through the ejection unit to mediate between the harmful bubbles/impurities on the door and the removal mechanism, using the water stream to carry away the contaminants
2Object-affected harmful factors
If additional parts and flow channels are provided to remove impurities from the door, then impurity removal capability is improved, but the risk of water leakage and backward flow increases
Solution Approach 1:
The ejection unit, originally designed for ejecting water onto laundry, is made multi-functional by also directing water onto the door to remove impurities, eliminating the need for separate dedicated components for door cleaning
Solution Approach 2:
The patent merges the door cleaning function with the existing ejection unit and water supply system, combining multiple functions into existing components to avoid adding separate flow channels that could leak
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 solution prevents impurities and bubbles from sticking to the door, enhances washing efficiency, and prevents water leakage, ensuring the user that the wash is complete and maintaining apparatus functionality.
Implementation Method 1
a washing unit for ejecting at least some of water moved toward the tub cover to the door using the centrifugal force generated while the drum is rotated
Implementation Method 2
an ejection unit with a chamber system to guide water towards the door and drum
Data Source
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AI summary
Disclosed is a laundry treatment apparatus including a tub body for storing water therein, a tub cover for forming the upper surface of the tub body, an introduction aperture formed through the tub cover, a supply aperture provided in the tub cover for supplying water into the tub body, a drum rotatably provided in the tub body for storing laundry therein, the drum having an opening communicating with the introduction aperture, a door for opening and closing the introduction aperture, and an ejection unit for ejecting water introduced into the supply aperture to the door or to the drum.