Air Filter Gasket Corner Locking for Vibration Airtightness
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Solution Overview
Problem
Gaskets in air filters are prone to shifting or twisting due to vibrations during assembly or transportation, leading to insufficient airtightness.
Innovation Solution
The air filter design incorporates a gasket with end portions that have a convex and concave configuration at the corners, allowing them to mate securely and resist shifting under load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rectangular gasket is used to ensure airtightness between filter body and filter frame, then airtightness is improved, but the gasket is easily subjected to load due to vibrations causing it to shift or twist from its designed position
Solution Approach 1:
The gasket end portions are designed with asymmetric convex and concave shapes that mate together at corner portions. This asymmetric configuration prevents the gasket from shifting or twisting under vibrational loads while maintaining the rectangular overall shape for airtight sealing between the filter body and filter frame.
2Ease of manufacture
If the gasket is designed with simple rectangular shape matching external dimensions of filter body, then ease of manufacture is improved, but the gasket shifts or twists under vibration loads during assembly or transportation
Solution Approach 1:
The gasket incorporates asymmetric convex and concave portions at its end portions while maintaining an otherwise simple rectangular shape. This design adds minimal manufacturing complexity compared to a plain rectangle, but effectively prevents shifting and twisting under vibration loads, ensuring reliable airtightness.
Data Source
AI summary
[Problem] To provide an air filter capable of ensuring airtightness.[Solution] An air filter includes a filter body that has a rectangular shape having four sides, a filter frame that has a rectangular shape having sides, and surrounds the filter body, and a gasket 6 that is disposed between the filter frame and the filter body along the four sides of the filter body, and has a set of end portions joined at at least one corner portion of the four sides. One end portion 6b of the set of end portions has a convex portion 21 that protrudes toward the other end portion 6a of the set of end portions, and the other end portion 6a of the set of end portions has a concave portion 22 that mates with the convex portion 21.