Air Filter Mounting Plate With Double Sealing Lips
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Solution Overview
Problem
Existing air filters face challenges in achieving improved sealing properties while maintaining ease of manufacture, particularly in hollow air filter arrangements where leakage is a concern.
Innovation Solution
An air filter mounting plate with a gasket featuring a connection portion and double sealing lips, designed for improved sealing by co-injection molding, which diverges to form a 'V'-like configuration, reducing the need for high installation force and providing a secure seal in both forward and reverse air flow directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple gasket design is used, then manufacturing cost is reduced, but sealing performance deteriorates due to leakage
Solution Approach 1:
The gasket is segmented into multiple functional zones: a connection portion for attachment to the mounting plate, and multiple sealing lips extending from the connection portion. Each segment performs a specific function - the connection portion provides mechanical attachment while the sealing lips create multiple contact points with the base plate, achieving both manufacturability and reliable sealing through functional segmentation
Solution Approach 2:
The gasket transitions from a simple planar design to a three-dimensional structure with sealing lips that extend outward from the mounting plate surface. This dimensional change allows the sealing lips to contact the base plate at multiple points, creating effective sealing paths that prevent leakage while maintaining a cost-effective single-piece molded design
2Reliability
If high installation force is applied, then sealing performance is improved, but device complexity increases
Solution Approach 1:
The gasket incorporates elastic sealing lips that can dynamically deform under compression. During installation, the sealing lips are compressed between the mounting plate and base plate, creating elastic contact pressure that ensures reliable sealing. This dynamic elastic deformation allows effective sealing without requiring excessive installation force or complex adjustment mechanisms
Data Source
AI summary
An air filter mounting plate having sealing side and a filter media retaining side, said mounting plate including an air passage opening and a gasket encircling the air passage opening provided on sealing side of the mounting plate, the gasket comprising a connection portion and double sealing lips (7a,7b) extending from the connection portion, and wherein the gasket is joined with the mounting plate by the connection portion being fixed on the sealing side of the mounting plate.