Air Filter Mounting Plate Gasket for Low-Leakage Pulse Filtration
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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 co-injection molding, provides enhanced sealing by diverging in divergent directions and incorporating ribs and pinholes to ensure a secure seal, even under pressure changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gasket with double sealing lips is used to improve sealing performance, then sealing reliability is improved, but device complexity increases
Solution Approach 1:
The gasket is segmented into distinct functional zones: a connection portion for attachment to the mounting plate, and double sealing lips extending from it. Each segment performs a specific sealing function, with the first sealing lip contacting the base plate and the second sealing lip providing additional sealing, thereby improving overall sealing reliability while maintaining manageable structural complexity through functional segmentation.
2Manufacturing precision
If co-injection molding is used to attach the gasket to the mounting plate, then manufacturing precision is improved, but manufacturing complexity increases
Solution Approach 1:
The gasket and mounting plate are merged into a single integrated component through co-injection molding. The connection portion of the gasket is directly molded onto the mounting plate in one manufacturing process, eliminating separate attachment steps and achieving high manufacturing precision through integrated production, despite the complexity of the molding process itself.
3Reliability
If the connection portion is fixed in a recess with a narrower opening, then sealing reliability is improved, but ease of manufacture decreases
Solution Approach 1:
The recess features a local quality change with a narrower opening compared to its main body. This localized geometric feature provides mechanical retention for the connection portion, improving sealing reliability by preventing displacement, while the overall simple recess geometry maintains ease of manufacture through standard molding or machining operations.
Data Source
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AI summary
An air filter mounting plate (1) having sealing side (2) and a filter media retaining side (3), said mounting plate including an air passage opening (4) and a gasket (5) encircling the air passage opening (4) provided on sealing side (2) of the mounting plate (1), the gasket comprising a connection portion (6) 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 (6) being fixed on the sealing side (2) of the mounting plate.