Laundry Cabinet Airflow Layout for Faster, More Uniform Drying
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Solution Overview
Problem
Conventional laundry treating cabinets, such as drying cabinets, face inefficiencies in air circulation, leading to longer drying times and uneven treatment of laundry, which results in higher energy consumption and less effective odor management.
Innovation Solution
The laundry treatment cabinet incorporates ventilation openings on the ceiling to create a downward airflow combined with an obliquely upward airflow, utilizing a fan or nozzles to direct process air in a diagonal pattern, enhancing air mixing and distribution within the cabinet, particularly in the lower third of the usable space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional air circulation is used in laundry treating cabinets, then the structure is simple, but the drying time is long and treatment is uneven
Solution Approach 1:
The air circulation system is segmented into multiple independent airflow paths: downward airflow from ceiling ventilation openings, upward airflow from floor ventilation openings, and oblique upward airflow from side wall nozzles. This segmentation allows each path to perform a specific function, improving overall drying efficiency while maintaining manageable system complexity
Solution Approach 2:
The patent introduces airflow in multiple spatial dimensions: vertical downward flow from the ceiling, vertical upward flow from the floor, and oblique upward flow from side walls. This multi-dimensional airflow approach enhances air circulation effectiveness and drying uniformity without significantly increasing system complexity
2Use of energy by moving object
If conventional air circulation is used, then the system is simple, but energy consumption is high due to longer process times
Solution Approach 1:
The patent establishes continuous air circulation through multiple ventilation openings positioned at different locations and orientations. This ensures uninterrupted airflow throughout the drying process, maintaining consistent drying conditions and reducing total process time, thereby lowering energy consumption despite the extended operational duration
Solution Approach 2:
The ventilation openings are pre-positioned to optimize airflow patterns from the start of the drying process. The ceiling openings provide immediate downward airflow, while floor and side wall openings establish upward and oblique flows respectively, creating effective air circulation from the beginning and reducing the time needed to achieve uniform drying
3Manufacturing precision
If single-direction airflow is used, then the system is simple, but treatment uniformity is poor
Solution Approach 1:
The patent employs asymmetric nozzle arrangements on the side walls with specific orientations angled toward the center of the usable space. This asymmetric configuration creates oblique upward airflow that complements the symmetric downward and upward flows, achieving uniform air distribution and treatment consistency across different laundry positions
Solution Approach 2:
Different ventilation openings are positioned at specific locations with optimized orientations: ceiling openings for downward flow, floor openings for upward flow, and side wall nozzles for oblique upward flow. Each location provides locally optimized airflow quality, ensuring uniform treatment throughout the entire usable space
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 improved airflow design shortens drying times, achieves more homogeneous treatment, reduces energy consumption, and ensures better distribution of steam or fragrances, resulting in faster and more efficient laundry processing.
Implementation Method 1
a fan with a blowing direction arranged at an angle to the vertical. This sucks in process air from the usable space and releases it back into the usable space in the upwardly inclined air flow
Implementation Method 2
ventilation openings for blowing process air into the usable space. At least some of the ventilation openings are arranged on the ceiling of the utility space in order to generate an airflow running downwards from the ceiling
Implementation Method 3
a steam generator for introducing steam, e.g. via the connecting duct, into the usable space
Implementation Method 4
the process air is sucked out of the usable space through a lower ventilation opening and guided through the evaporator and the condenser of a heat pump arrangement for drying and heating
Data Source
Figure 1~3
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Figure 5
AI summary
The laundry treatment unit (10) has a work space (12) and ventilation openings (42) for blowing process air into the work space. A portion of the ventilation openings is provided at the ceiling (41) of the work space to generate air flow (43) directed downward from the ceiling. An auxiliary unit (60) is provided in the work space for generating airflow directed obliquely upward. The auxiliary unit has a fan obliquely arranged relative to vertical blowing direction, which sucks air from the work space and delivers into the airflow directed obliquely upward.