Automatic Roller-Based Lint Collection Assembly for Dryer Appliances
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Solution Overview
Problem
Dryer appliances face inefficiencies due to excessive lint accumulation on filters, which restricts airflow, increases drying time, and can damage clothing, and users often neglect to clean filters regularly due to inconvenience.
Innovation Solution
A dryer appliance with a lint collection assembly featuring a roller system and drive mechanism that automatically rotates a filter medium over an aperture, collecting lint and storing it for multiple cycles, reducing manual cleaning and maintaining airflow efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual filter cleaning is required, then lint removal is achieved, but user convenience deteriorates and cleaning frequency decreases
Solution Approach 1:
The system automatically performs filter cleaning operations without user intervention. The roller assembly with drive mechanism autonomously moves the filter medium to collect and store lint, eliminating the need for users to manually clean the filter and ensuring consistent maintenance regardless of user compliance
Solution Approach 2:
The system performs lint collection and storage in advance before the filter becomes completely blocked. By continuously or periodically collecting lint during operation, the system prevents airflow restriction before it becomes severe, maintaining dryer performance without requiring user intervention
2Ease of operation
If filter cleaning is delayed, then user convenience is improved, but airflow restriction increases and drying performance deteriorates
Solution Approach 1:
The roller assembly continuously or periodically collects lint during dryer operation, maintaining consistent airflow through the filter. This continuous action prevents the accumulation that would lead to airflow restriction and drying efficiency loss, while requiring minimal user intervention
Solution Approach 2:
The automatic lint collection system maintains drying efficiency without user intervention by continuously removing lint as it accumulates, ensuring the filter never reaches a state where airflow restriction impairs drying performance
3Reliability
If manual lint removal is required, then airflow is maintained, but time consumption increases and user burden increases
Solution Approach 1:
The system collects and stores lint in advance before it blocks the filter. The roller assembly moves the filter medium to capture lint particles as they accumulate, storing them in a containment chamber before they can restrict airflow, eliminating the need for time-consuming manual cleaning
Solution Approach 2:
The automatic lint collection system maintains airflow without requiring user time or effort. The drive mechanism and roller assembly autonomously perform the lint removal function that would otherwise require manual user intervention, freeing users from this time-consuming task
Data Source
AI summary
A lint collection assembly for a dryer appliance includes a filter housing defining an aperture through which a flow of air exits the drying chamber. A roller assembly includes a supply roller for unrolling clean filter medium over the aperture and a collection roller for simultaneously receiving a used section of the filter medium. A drive mechanism, such as an electric motor is coupled directly to the collection roller or to a separate drive roller for moving the filter medium over the aperture between drying cycles to automatically and conveniently collect filtered lint.