Lifter-Integrated Foreign Substrate Collector for Laundry Appliances
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Solution Overview
Problem
Laundry appliances lack an effective mechanism to collect and remove foreign substrates such as pet hair and other debris from clothing during the wash cycle, leading to incomplete cleaning and potential re-deposition of these particles.
Innovation Solution
A foreign substrate collector is integrated into the laundry appliance, featuring a lifter with a housing that includes a mesh body and slots to trap foreign substrates, along with a blower that directs airflow to loosen and collect these particles, and rollers with frictional members to attract and retain them, ensuring efficient removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foreign substrate collector is added to the laundry appliance, then foreign substrate collection capability is improved, but device complexity increases
Solution Approach 1:
The foreign substrate collector is disposed within the lifter assembly, nesting the collection mechanism inside an existing structural component. The housing is positioned within the lifter's operational space, and the rollers are contained within the housing, creating a nested configuration that adds collection functionality without proportionally increasing overall device complexity
Solution Approach 2:
The lifter assembly serves dual functions: its original function of lifting and agitating laundry during the wash cycle, and the new function of collecting foreign substrates through the integrated collector. The housing structure provides both mechanical support for the lifter components and containment for the collection mechanism, demonstrating multi-functionality that reduces the need for separate dedicated structures
2Reliability
If frictional members are added to collect foreign substrates, then collection effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The frictional members are applied locally to specific surfaces of the rollers that directly contact the laundry and foreign substrates, rather than requiring the entire roller or housing to be made of high-friction material. This localized application of friction-enhancing properties reduces material costs and manufacturing complexity while maintaining collection effectiveness at the critical contact points
Solution Approach 2:
The frictional members are described as having a porous structure that enhances their ability to capture and retain foreign substrates through both friction and adhesion. The porous configuration increases surface area for particle capture while using relatively simple material structures that can be manufactured through standard porous material fabrication processes
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 effectively captures and removes foreign substrates from clothing, enhancing cleaning efficiency and ensuring cleaner laundry by utilizing a combination of airflow and frictional engagement to collect and retain debris within the appliance.
Implementation Method 1
The frictional members rotate against one another and against articles being processed. The frictional members collect foreign substrate particles from the articles
Implementation Method 2
a blower that directs airflow to loosen and collect these particles
Data Source
AI summary
A laundry appliance includes a cabinet. A door is operably coupled to the cabinet. A drum is disposed within the cabinet proximate to the door. A lifter is disposed within and operably coupled to the drum. A foreign substrate collector is disposed within the lifter.