Filter housing
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Solution Overview
Problem
Existing ceiling-mounted air filter housings for cleanrooms require substantial manual effort and risk damage during filter replacements, as they are typically secured with bolts or nuts, leading to increased downtime and risk of filter damage.
Innovation Solution
The air filter housing incorporates resilient members with a vertically sloping deflecting surface and a horizontal retaining surface, which temporarily retain and support the filter frame during insertion, allowing for easier and controlled clamping, reducing the risk of damage and facilitating faster replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bolts or nuts are used to secure the filter frame to the sealing surface, then a leak-proof connection is achieved, but substantial manual work and increased risk of filter damage occur during filter replacement
Solution Approach 1:
The invention extracts the fastening function from the traditional bolt-nut system and relocates it to the resilient member, which inherently provides both sealing and retention functions, eliminating the need for separate fastening components
Solution Approach 2:
The resilient member acts as an intermediary element between the filter frame and sealing surface, providing both the sealing function and the retention force needed to secure the filter without requiring additional fastening hardware
2Reliability
If traditional bolted connections are used, then secure filter mounting is achieved, but downtime for filter exchange increases due to substantial manual work
Solution Approach 1:
The resilient member is pre-installed in the housing and automatically engages with the filter frame upon insertion, performing the retention function in advance before the filter needs to be replaced, enabling quick removal and replacement without manual fastening operations
Solution Approach 2:
The resilient member automatically retains the filter frame through its elastic deformation and recovery, providing self-service retention without requiring manual intervention for fastening or unfastening operations
3Ease of repair
If manual work in awkward positions is required for filter replacement, then filter changes can be performed, but the working environment deteriorates and risk of filter damage increases
Solution Approach 1:
The resilient member serves as a protective intermediary that guides and supports the filter frame during insertion, preventing direct contact between the filter and potentially damaging housing surfaces, and reducing the risk of filter damage during replacement operations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design reduces downtime for filter exchanges, improves the working environment by minimizing manual labor, and reduces the risk of filter damage during installation and removal, ensuring a more controlled and secure sealing connection.
Implementation Method 1
the resilient member will be deformed by the filter frame as the filter passes the resilient member, and resume its original shape once the filter has passed
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
The present invention relates to an air filter housing for supplying air to a space, said air filter housing being configured to be arranged in a ceiling of said space, said housing having a mouth facing downward, said mouth comprising a sealing surface configured to receive a panel type air filter comprising a frame and a filter medium held within said frame, such that a sealing connection between said sealing surface and said frame is achieved, characterized in that said filter housing further comprises at least one resilient member arranged below the sealing surface such that when a panel type air filter is inserted into the mouth, the resilient member will be deformed by the filter frame as the filter passes the resilient member, and resume its original shape once the filter has passed, such that the filter is retained between the sealing surface and the resilient member. The present invention further relates to the use of a filter housing in a cleanroom, and to a method of mounting a panel type air filter in an air filter housing.