Washer-Dryer Lint Removal Prompt Based on Blower Runtime Monitoring
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Solution Overview
Problem
Users of washer-dryers often fail to timely remove lint, leading to reduced drying performance, increased energy consumption, and potential clogging due to inadequate awareness of when to run the lint removal program.
Innovation Solution
A washer-dryer with a control and regulating device that evaluates the blower's running time and displays a message prompting the user to run the lint removal program when the threshold is met, ensuring timely fluff removal and preventing accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the user does not run the lint removal program regularly, then the device operates normally for longer periods, but lint accumulates excessively leading to reduced drying performance and increased energy consumption
Solution Approach 1:
The control device monitors the operational history of the dryer and provides feedback to the user through visual or audible signals indicating when lint removal is necessary. This feedback mechanism enables users to make informed decisions about maintenance timing, preventing excessive lint accumulation that would degrade drying performance and increase energy consumption.
Solution Approach 2:
The system performs preliminary assessment of lint accumulation based on monitored operational parameters before actual performance degradation occurs. By evaluating runtime data and providing advance warning signals, the system enables users to perform lint removal proactively, preventing the harmful effects of excessive lint buildup on drying efficiency and energy usage.
2Reliability
If the user is not informed about lint accumulation, then the device structure remains simple, but lint removal is delayed causing clogging and performance degradation
Solution Approach 1:
The control device incorporates a feedback mechanism that monitors dryer operation and communicates lint removal needs to the user through displays or alerts. This relatively simple feedback system significantly improves reliability by ensuring timely maintenance, preventing clogging and performance degradation without requiring complex control architecture.
Solution Approach 2:
The system enables self-service maintenance monitoring by automatically tracking operational parameters and generating user-friendly notifications. This approach improves reliability through consistent monitoring while maintaining simplicity, as the system serves itself by providing the information needed for user-initiated maintenance without requiring complex automated control.
3Productivity
If the lint removal program is run frequently, then lint accumulation is prevented, but the user spends more time on maintenance operations
Solution Approach 1:
The control device provides feedback-based guidance that tells users exactly when lint removal is necessary based on monitored operational data. This prevents both under-maintenance (which would require more frequent interventions) and over-maintenance (which would waste user time). Users perform lint removal only when the system indicates it is necessary, optimizing the balance between maintaining drying performance and minimizing maintenance time investment.
Solution Approach 2:
The system uses parameter changes in operational history monitoring to determine optimal maintenance timing. By tracking runtime parameters and comparing against thresholds or patterns, the system dynamically determines when lint removal should be performed, preventing both excessive frequency (wasting user time) and insufficient frequency (degrading performance).
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 solution improves drying performance, reduces energy consumption, and prevents clogging by ensuring the user is informed to run the lint removal program before excessive fluff accumulation occurs.
Implementation Method 1
a blower (6) for blowing process air (7) during a drying process
Implementation Method 2
a condenser (3) for condensing water vapor from the process air (7)
Implementation Method 3
a heating element (5) for heating the process air (7)
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a washer-dryer with a drum (11) for receiving laundry, a blower (6) for blowing process air (7) during a drying process, a control and/or regulating device (2) for controlling and/or regulating operating processes and a display (4) for displaying a message, wherein the control and/or regulating device (2) is configured to evaluate a running time of the blower (6) and to control and/or regulate the display (4) such that, depending on the running time of the blower (6), it displays a message with information to start a lint removal program designed to remove lint from the washer-dryer.Furthermore, the invention relates to a method for operating a washer-dryer with a drum (11) for receiving laundry, a blower (6) for blowing process air during a drying process, a control and/or regulating device (2) for controlling and/or regulating operating processes and a display (4) for displaying a message, comprising the following steps: evaluating a runtime of the blower (6), and displaying a message depending on the runtime of the blower (6), wherein the message contains information to start a lint removal program designed to remove lint from the washer-dryer.