Vacuum Filter Cup Structure for Debris Shielding and Airflow
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Solution Overview
Problem
Existing filter cups and cages for vacuum systems fail to protect filters from direct dirt and debris impact, leading to clogging, while also not allowing sufficient airflow, which results in reduced filter efficiency and lifespan.
Innovation Solution
A filter cup design featuring a cylindrical shell with a lip and base plate, where the upper portion has multiple apertures for airflow and the lower portion is aperture-free, with strategically placed ribs to prevent debris from entering the filter, and a base plate with apertures that reduce dirt and debris entry, allowing air to flow while containing contaminants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the filter cup uses a solid structure without apertures, then it protects the filter from dirt and debris, but it blocks airflow and reduces filter efficiency
Solution Approach 1:
The filter cup is segmented into two distinct portions: an upper portion with apertures for airflow and a lower aperture-free portion for debris protection. This segmentation allows each portion to fulfill its specific function - the upper portion maintains productivity by allowing air flow, while the lower portion improves reliability by protecting the filter from debris
Solution Approach 2:
Different portions of the filter cup are given different structural qualities - the upper portion has apertures to permit airflow, while the lower portion is solid to prevent debris entry. This local differentiation resolves the contradiction by applying the appropriate structure in the appropriate location
2Productivity
If the filter cup uses a mesh-like structure with many openings, then it allows sufficient airflow, but it fails to protect the filter from directly impinging dirt and debris
Solution Approach 1:
The filter cup is divided into functional segments where the upper portion with apertures handles airflow requirements, while the separate lower solid portion handles debris protection. This segmentation allows the system to achieve both high airflow and reliable filter protection that a single uniform structure cannot provide
Solution Approach 2:
The lower solid portion of the filter cup acts as an intermediary barrier that intercepts debris before it can reach the filter, while still allowing the upper portion to maintain open airflow paths
Data Source
AI summary
A filter cup having a shell with a plurality of apertures in an upper portion and an aperture free portion below the upper portion. A base plate adjacent the aperture free portion has at least one aperture therethrough.