Laundry Dryer Multi-Rack Air Distribution for Uniform Drying
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Solution Overview
Problem
Conventional laundry treatment apparatuses face challenges in drying a large amount of clothes simultaneously while ensuring uniform air distribution, leading to potential damage from overdrying or under-drying, and the exposure of thermoplastic resin films on racks.
Innovation Solution
A laundry treatment apparatus with a drying chamber featuring multiple racks and an air supply system that includes guides and a duct to evenly distribute heated air, along with a rack design that prevents thermoplastic resin films from being exposed to the outside by using a mesh frame and frame through holes to accommodate the mesh.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple racks are positioned in the drying chamber to dry a large amount of clothes at one time, then the drying capacity is improved, but the air supply uniformity deteriorates
Solution Approach 1:
The air supply system is segmented into multiple zones with dedicated supply ports and guides for each rack level. The drying chamber is divided into upper and lower regions, each with independent air supply paths, allowing customized air distribution to each rack position rather than a single centralized supply system.
Solution Approach 2:
Different air supply characteristics are provided to different locations within the drying chamber. Each rack position receives air with appropriate flow rate and direction tailored to its specific needs, with adjustable air supply angles and velocities to ensure uniform drying across all racks regardless of their position.
2Reliability
If racks with mesh structure are used to support clothes, then the air circulation is improved, but the thermoplastic resin film exposure causes durability deterioration
Solution Approach 1:
The mesh is nested within a protective frame structure where the thermoplastic resin film is contained between the mesh and the frame. The frame acts as a container that holds the mesh and its protective film, preventing direct exposure of the film to external environments while maintaining the mesh's air circulation function.
Solution Approach 2:
The frame structure serves as an intermediary between the mesh and the external environment. It provides a protective barrier that shields the thermoplastic resin film on the mesh from exposure to heat, moisture, and mechanical stress, while still allowing air to pass through the mesh structure for effective circulation.
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
Enables efficient drying of a large quantity of clothes with uniform air distribution, minimizing damage and preventing thermoplastic resin film exposure, thus enhancing drying efficiency and rack durability.
Implementation Method 1
an air supply unit configured to supply air into the drying chamber through the supply port
Implementation Method 2
a heating element configured to heat air supplied from the air supply unit
Data Source
AI summary
The present disclosure relates to a laundry treatment apparatus including a cabinet having an entrance, a drawer comprising a drying chamber, a bottom surface, a front surface extending upward from the bottom surface, a rear surface to face the front surface, and first and second side surfaces to connect the front and rear surfaces. The laundry apparatus includes a first rack disposed in the drying chamber, the first rack comprising a first vent portion allowing a space above and below the first rack to communicate with each other, a second rack disposed in the drying chamber and positioned between the first rack and the bottom surface, the second rack comprising a second vent portion, a supply port formed through the rear surface, an air supply unit located outside the drying chamber, and a guide in the supply port to guide air to at least one of the spaces.