Dryer Filter Self-Cleaning Control for Lint Buildup
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Solution Overview
Problem
Conventional clothes treatment apparatuses face inefficiencies in removing foreign substances like lint during the drying process, leading to reduced drying efficiency and potential accumulation in heat exchanging devices, and require frequent filter cleaning, which is inconvenient for users.
Innovation Solution
A control method for a clothes treatment apparatus that includes a filter unit and a foreign substance removal unit, which automatically cleans the filter based on drying conditions, the quantity of clothes, type of clothes, target dryness, and target drying time, optimizing cleaning timing and duration to maintain efficiency and reduce user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the filter unit is cleaned frequently to remove foreign substances, then the drying efficiency is improved, but the user convenience deteriorates due to frequent manual intervention
Solution Approach 1:
The filter cleaning function is automated through a foreign substance removal unit that operates automatically during the drying cycle. The control unit detects when cleaning is needed and activates the cleaning mechanism without requiring user intervention, allowing the system to maintain itself while preserving drying efficiency.
Solution Approach 2:
The filter cleaning operation is performed in advance during the drying cycle before the foreign substances accumulate to problematic levels. The control unit monitors the drying process and initiates cleaning proactively, preventing efficiency degradation rather than reacting to it.
2Reliability
If the filter unit is cleaned every time the apparatus is used, then foreign substance accumulation is prevented, but the loss of time increases due to repeated cleaning operations
Solution Approach 1:
The system automatically determines when filter cleaning is necessary based on monitored drying conditions and foreign substance accumulation patterns. The control unit intelligently schedules cleaning operations only when needed, eliminating unnecessary cleaning cycles and reducing time loss while maintaining effective foreign substance removal.
Solution Approach 2:
The control unit continuously monitors drying conditions and filter status, using this feedback to determine the optimal timing for cleaning operations. This closed-loop control ensures cleaning is performed based on actual need rather than on a fixed schedule, optimizing the balance between reliability and time efficiency.
3Reliability
If the filter cleaning time period is extended to remove more foreign substances, then the foreign substance removal effectiveness is improved, but the drying time increases
Solution Approach 1:
The foreign substance removal unit performs cleaning operations at multiple stages during the drying cycle rather than attempting to remove all foreign substances in a single extended cleaning session. This distributed approach maintains effective removal while minimizing the impact on overall drying time.
Solution Approach 2:
The filter cleaning is performed periodically at strategically determined intervals during the drying cycle. The control unit schedules multiple shorter cleaning operations rather than one long operation, achieving thorough foreign substance removal while preserving drying efficiency through periodic maintenance.
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 method effectively filters foreign substances and optimizes filter cleaning based on specific conditions, enhancing drying efficiency, reducing the need for frequent user intervention, and preventing foreign substance accumulation in heat exchanging devices.
Implementation Method 1
a filter unit configured to filter foreign substances from air exhausted from the accommodating space
Implementation Method 2
a foreign substance removal unit configured to remove the foreign substances remaining in the filter unit
Data Source
AI summary
In a general aspect, an apparatus for treating clothes includes a filter unit and a substance removal unit. The filter unit is positioned to filter substances from air discharged from an accommodating space and the substance removal unit is configured to move substances remaining on a portion of the filter unit. A method for controlling the apparatus for treating clothes includes detecting a condition related to the apparatus for treating clothes. The method further includes controlling, based on detection of the condition and without user input after detection of the condition, the substance removal unit to start removing substances remaining on the portion of the filter unit.