Filter Element Asymmetric Protrusion for Component Authenticity
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Solution Overview
Problem
Existing filter devices lack effective mechanisms to prevent the use of non-genuine components, which can compromise their performance and reliability.
Innovation Solution
The filter device incorporates a unique design featuring a filtration member with a gripping member and sealing mechanism, including a protrusion and hole configuration on the upper plate and gripping member, along with a holding ring for integration, and a differential pressure measurement unit to ensure only genuine components are used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an inner tube is provided inside the element portion for easy exchange, then the ease of operation is improved, but the reliability deteriorates because non-genuine components may be mounted
Solution Approach 1:
The patent applies asymmetry by providing a protrusion on the inner tube that must fit into a corresponding recess on the element portion. This asymmetric configuration ensures that only the genuine inner tube with the correct geometric features can be properly mounted, preventing substitution with non-genuine components while maintaining the ease of exchange through a simple insertion motion
Solution Approach 2:
The patent uses the protrusion-recess configuration as an intermediary mechanism between the inner tube and element portion. This intermediary feature acts as a physical verification system that confirms component authenticity during the mounting process, allowing easy exchange while ensuring only genuine parts are installed
Data Source
AI summary
An upper plate provided on upper ends of a filtration member and an inner tube includes a tubular portion along the inner tube, a rib formed so as to protrude inward in a radial direction from an inner circumference of the tubular portion, and a hole formed in the rib. A gripping member has a protrusion portion that protrudes downward from a body portion having a thick plate shape inserted into a hollow portion of the tubular portion. When the gripping member is mounted on the upper plate, the protrusion portion is inserted into the hole.