Laundry Appliance Auto-Drying After Self-Clean to Prevent Mold Growth
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Solution Overview
Problem
Conventional laundry appliances often fail to initiate a drying cycle after a self-clean cycle, leading to residual moisture and humidity issues that can cause mold, mildew, and foul smells, due to user forgetfulness or lengthy self-clean cycles.
Innovation Solution
A laundry appliance with a controller that automatically initiates a drying cycle upon completion of the self-clean cycle, utilizing a fan and humidity sensor to execute the drying process based on operational data, ensuring effective moisture removal without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a self-clean cycle is performed to clean residue from the tub, then cleaning effectiveness is improved, but moisture remains and humidity issues cause mold and mildew growth
Solution Approach 1:
The system performs a drying cycle immediately after the self-clean cycle to remove moisture before mold and mildew can develop. The controller automatically initiates the drying cycle based on detection that the self-clean cycle has completed, preventing the harmful effects of residual moisture.
2Object-affected harmful factors
If the door is left open to promote drying, then moisture removal is improved, but energy loss and potential contamination increase
Solution Approach 1:
The system replaces the mechanical action of leaving the door open with an automated drying cycle that uses a fan and heating element to circulate and heat air within the sealed appliance, effectively removing moisture through controlled thermal and airflow processes while maintaining the door closed.
3Object-affected harmful factors
If users manually initiate drying cycles, then moisture removal is ensured, but user convenience decreases due to forgetfulness
Solution Approach 1:
The system serves itself by automatically detecting when the self-clean cycle has completed and autonomously initiating the drying cycle without requiring user intervention. The controller monitors cycle completion and triggers the next appropriate cycle, making the appliance self-managing for moisture control.
4Object-affected harmful factors
If a drying cycle is automatically initiated after self-clean cycle, then moisture removal is improved, but device complexity increases
Solution Approach 1:
The existing controller that manages wash cycles is extended to also manage drying cycles, making it a multi-functional control system. The same hardware and software infrastructure is utilized for both washing and drying operations, minimizing additional complexity while achieving the desired moisture removal functionality.
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
The solution ensures efficient drying and reduced humidity levels within the appliance, preventing mold and mildew growth, and improving user convenience by automating the drying process post-self-clean cycle.
Implementation Method 1
a drying cycle, which may include operation of the fan to promote drying
Data Source
AI summary
A laundry appliance includes a drum rotatably mounted within a cabinet and defining a chamber configured for receiving a load of clothes, a door pivotally mounted to the cabinet for providing selective access to the chamber, and a user interface for controlling operation of the laundry appliance. A controller is configured to initiate a self-clean cycle and to automatically commence a drying cycle at the conclusion of the self-clean cycle. The drying cycle is based on operation data associated with the drying cycle, such as a predetermined period of time to complete drying or based on a predetermined final humidity of air exhausted from the chamber during the drying cycle.