Laundry Appliance Air Filter Assembly with Spring-Biased Sealing
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Solution Overview
Problem
Laundry appliances face issues with air filter sealing engagement wear due to frequent removal and reinstallation for cleaning, leading to potential bypass air flow and reduced performance.
Innovation Solution
Incorporation of a biasing element in the air filter assembly to ensure sealing engagement with the housing, using elements like leaf springs or coil springs to maintain a secure fit during installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air filter is frequently removed and reinstalled for cleaning, then the air filter can be maintained and continue to trap particles effectively, but the sealing elements experience excessive wear which compromises the seal and allows bypass air flow
Solution Approach 1:
The air filter assembly incorporates a biasing element (spring or elastic member) that dynamically maintains sealing pressure between the filter and housing. This dynamic mechanism automatically compensates for wear on sealing elements by applying continuous elastic force, ensuring the seal remains effective even after multiple removal and reinstallation cycles for cleaning
2Ease of repair
If the air filter is designed to be removable for cleaning, then maintenance is enabled and particle accumulation can be removed, but sealing engagement is compromised due to wear on sealing elements
Solution Approach 1:
The biasing element serves as a preventive mechanism that compensates for future wear on sealing elements before it occurs. By pre-loading the sealing interface with elastic force, the system ensures that even as the sealing elements deteriorate from repeated cleaning operations, the biasing element maintains sufficient contact pressure to preserve sealing effectiveness
3Reliability
If sealing elements are made more durable to resist wear, then sealing engagement is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
Instead of using more complex or durable sealing materials, the invention changes the operational parameter by introducing a biasing element that applies continuous mechanical force. This simple force-based approach maintains sealing effectiveness without requiring complex multi-component sealing mechanisms or specialized materials, thereby avoiding increased device complexity
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
Enhances sealing engagement of the air filter, reducing wear on sealing elements and maintaining appliance performance by preventing bypass air flow.
Implementation Method 1
a biasing element configured to bias the shell into sealing engagement with a housing of the laundry appliance
Data Source
AI summary
A laundry appliance includes a cabinet defining an interior volume and a housing mounted within the interior volume of the cabinet. The laundry appliance also includes an air filter assembly positioned in the housing. The air filter assembly includes a shell, a sealing member on a face of the shell, and a biasing element configured to bias the shell into sealing engagement with the housing.