Washer/Dryer Tumble Cycle for User-Driven Drying Preference Input
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Solution Overview
Problem
Current combined washer/dryer appliances face challenges in allowing selective removal of articles before the drying cycle, particularly for delicate items or those that need air drying, as users often struggle to prevent wrinkles, mildew, or foul smells due to the lack of direct user interaction between wash and dry cycles.
Innovation Solution
A combination washer/dryer appliance with a rotatable laundry basket and a controller that initiates a wash/dry operation, including a tumble cycle, allows for user preference adjustments, enabling selective article removal and preventing heat exposure to ensure proper drying and prevent issues like wrinkles or mildew.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the appliance automatically transitions from wash cycle to dry cycle without user interaction, then productivity is improved, but the user cannot selectively remove articles for air drying or stain evaluation
Solution Approach 1:
The system dynamically adjusts the drying cycle based on user input received during the tumble cycle. The controller monitors user preferences entered during the intermediate tumble phase and modifies the subsequent drying operation accordingly, allowing selective treatment of different article types within the same load.
2Adaptability or versatility
If users closely monitor the progress of washing or drying operations to evaluate stains and prevent wrinkles, then adaptability is improved, but ease of operation deteriorates due to the cumbersome monitoring requirement
Solution Approach 1:
The system performs a preliminary tumble cycle after washing and before drying, during which articles are tumbled without heat application. This preliminary action allows users to evaluate stain removal and assess wrinkle formation in a controlled, cool environment before the articles are exposed to drying heat that would make further evaluation difficult.
Solution Approach 2:
The system provides structured feedback opportunities to users during the tumble cycle through the control interface, allowing them to input preferences about article removal or special handling. This feedback mechanism enables users to make informed decisions without continuous monitoring, as the system pauses at appropriate intervals to solicit user input.
3Ease of operation
If the tumble cycle duration is extended to allow user preference input, then ease of operation is improved, but loss of time increases
Solution Approach 1:
The tumble cycle is performed for a partial duration sufficient to allow user input, rather than completing the full tumble period before soliciting preferences. The system interrupts the tumble cycle at an optimal point to receive user input, balancing the need for user interaction with minimizing total cycle time.
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 enables users to selectively manage wash/dry operations, allowing for the removal of articles during the tumble cycle and adjusting the drying process based on user preferences, thereby preventing wrinkles, mildew, and foul smells, enhancing the convenience and effectiveness of laundry processing.
Implementation Method 1
The heater may be configured to heat and remove moisture from air flowing therethrough
Implementation Method 2
directing a tumble cycle of the laundry basket... The tumble cycle may include rotating the laundry basket
Data Source
AI summary
A combination washer/dryer appliance may include a cabinet, a tub, a laundry basket, a heater, and a controller. The laundry basket may be rotatably mounted within the tub and define a chamber for receipt of articles for washing or drying. The controller may be operably coupled to the heater and configured to initiate a wash/dry operation. The wash/dry operation may include initiating a wash/dry operation for articles within the laundry basket. The wash/dry operation may include a wash cycle and a dry cycle. The wash/dry operation may further include determining completion of the wash cycle and directing a tumble cycle of the laundry basket in response to determining completion of the wash cycle. The wash/dry operation may still further include determining a user drying preference during the tumble cycle of the laundry basket and adjusting the wash/dry operation based on the determined user drying preference.