Laundry Appliance Humidity Control After Door Closure
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Solution Overview
Problem
Laundry treating appliances often face issues with moisture retention after cycles, leading to mold, mildew, and unpleasant odors due to high humidity within the treating chamber and appliance areas, which existing technologies fail to adequately address.
Innovation Solution
The implementation of a humidity reduction system in laundry treating appliances, featuring a fan and/or heat source that dehumidifies the air within the treating chamber, controlled by sensors to determine the door position and initiate dehumidification processes after cycle completion, ensuring reduced humidity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door remains closed after cycle completion, then the appliance structure is maintained and security is preserved, but humidity accumulates in the treating chamber leading to mold and mildew growth
Solution Approach 1:
The controller initiates a dehumidification cycle before the user opens the door, using sensors to detect high humidity levels and automatically activating the fan and heating element to reduce moisture in the treating chamber, preventing mold and mildew growth while maintaining door closure
Solution Approach 2:
Humidity sensors continuously monitor the treating chamber environment and provide feedback to the controller, which adjusts the operation of the fan and heating element accordingly, activating dehumidification only when humidity exceeds predetermined thresholds and deactivating when acceptable levels are reached
2Object-affected harmful factors
If a dehumidification system is added to reduce humidity after cycles, then mold and mildew growth is prevented, but device complexity increases
Solution Approach 1:
The fan and heating element serve dual purposes: they function as standard appliance components during normal operation and as dehumidification system components after cycles, eliminating the need for separate dedicated dehumidification hardware and reducing overall system complexity
Solution Approach 2:
The appliance uses its own existing structural components (fan for air circulation, heating element for moisture evaporation) to perform dehumidification, rather than requiring external or additional specialized equipment, making the system self-sufficient and simpler
3Object-affected harmful factors
If humidity is reduced immediately after cycle completion, then microorganism growth is inhibited, but energy consumption increases
Solution Approach 1:
The dehumidification system operates periodically rather than continuously, with the controller activating the fan and heating element only when humidity sensors detect elevated moisture levels, and deactivating them when predetermined humidity thresholds are met, thereby reducing unnecessary energy consumption
Solution Approach 2:
The system performs preliminary dehumidification actions only when necessary, using sensor feedback to determine when humidity levels require reduction, rather than continuously operating the energy-consuming components, thus balancing microorganism prevention with energy efficiency
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
Effectively inhibits the growth of microorganisms that cause odors, maintaining appliance hygiene and user satisfaction by actively reducing humidity levels within the chamber and appliance, even after laundry removal.
Implementation Method 1
featuring a fan and/or heat source that dehumidifies the air within the treating chamber
Implementation Method 2
featuring a fan and/or heat source that dehumidifies the air within the treating chamber
Data Source
AI summary
An apparatus and method for reducing humidity both within laundry and within a laundry treating appliance in response to a door being opened or closed are disclosed.