Laundry treatment apparatus
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Solution Overview
Problem
Front-loading laundry treatment apparatuses are inconvenient due to the low placement of the introduction port, requiring users to stoop, and are prone to issues like water supply pipes freezing and rupturing at low temperatures.
Innovation Solution
A laundry treatment apparatus with a secondary washing apparatus that includes a tub, a drum, a water supply unit, and a softener supply unit, where the water supply unit is in fluidic communication with the softener supply unit, featuring check valves and communication protrusions to prevent backflow and freezing, and a secondary washing apparatus that can be positioned under the main washing apparatus to elevate the installation height and prevent pipe freezing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the introduction port is positioned at a low level in front-loading laundry treatment apparatus, then the apparatus structure is simple and compact, but user convenience deteriorates as users must stoop to load laundry
Solution Approach 1:
The patent transitions from a horizontal placement configuration to a vertical stacked configuration, moving the secondary washing machine from the same level to an elevated position above the main washing machine. This dimensional change allows the introduction port to be positioned at a higher, more convenient level without increasing the horizontal footprint of the apparatus.
2Reliability
If water supply pipes are installed in exposed positions, then the apparatus structure is simple and accessible, but reliability deteriorates as pipes are prone to freezing and rupturing at low temperatures
Solution Approach 1:
The patent combines the water supply pipes with the structural framework of the secondary washing machine, integrating them into the cabinet body and drawer housing. This merging provides inherent protection and insulation for the pipes, reducing their vulnerability to freezing while avoiding the need for separate complex insulation structures.
Solution Approach 2:
The patent introduces insulating materials as intermediary elements between the water supply pipes and the external environment. These insulating layers act as mediators that prevent heat transfer from the pipes to the cold ambient air, thereby preventing freezing without requiring structural redesign.
3Ease of operation
If a secondary washing machine is added to elevate the introduction port, then user convenience is improved, but device complexity increases with additional components and installation requirements
Solution Approach 1:
The secondary washing machine is designed with multi-functionality, serving both as a functional washing device and as a structural support platform that elevates the main washing machine. This universality allows the system to achieve the height elevation benefit while utilizing a single integrated component rather than requiring separate support structures.
Solution Approach 2:
The patent segments the washing machine system into two independent but integrated units: a main washing machine and a secondary washing machine. This segmentation allows each unit to be manufactured, installed, and maintained independently, reducing the overall system complexity despite the added functionality.
4Reliability
If water supply pipes are insulated to prevent freezing, then reliability is improved, but manufacturing cost and installation complexity increase
Solution Approach 1:
The insulation for water supply pipes is merged with the cabinet structure and housing components of the secondary washing machine. The cabinet body and drawer housing themselves serve as insulating barriers, eliminating the need for separate insulation materials and simplifying both manufacturing and installation processes.
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
Enhances user convenience by raising the introduction port height and prevents water and softener supply pipes from freezing and rupturing by maintaining atmospheric pressure through fluidic communication between the water and softener supply units.
Implementation Method 1
the water supply unit is in fluidic communication with the softener supply unit
Implementation Method 2
a check valve configured to prevent washing water from flowing toward the softener connection pipe
Implementation Method 3
a secondary washing apparatus that can be positioned under the main washing apparatus to elevate the installation height and prevent pipe freezing
Data Source
AI summary
A laundry treatment apparatus includes a tub configured to receive washing water, a drum rotatably disposed in the tub, a water supply unit configured to supply washing water to the tub, and a softener supply unit configured to supply softener to the tub. The water supply unit is in fluidic communication with the softener supply unit.