Air Duct Cover Assembly for Removable Filter Retention
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Solution Overview
Problem
Air conditioning systems face challenges in preventing the circulation of dust, dirt, and other contaminants from unoccupied or construction areas into occupied rooms, necessitating improved air filtering solutions that are easily installable and removable for maintenance.
Innovation Solution
An air duct opening cover assembly with a retainer system and a cover body that securely positions an air filter element across an air duct opening, allowing for easy deployment and disconnection, featuring a retainer system with fasteners and a grid structure to maintain the filter in place while allowing air to pass through.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional air conditioning system is used to circulate air from unoccupied or construction areas, then air circulation is achieved, but dust, dirt, and contaminants are circulated into occupied rooms creating health hazards
Solution Approach 1:
The system segments the air circulation path by introducing a removable cover assembly that divides the duct opening into a covered portion and an uncovered portion. This allows selective filtering of air from specific zones while maintaining overall air circulation, thus preventing contamination without completely blocking airflow.
Solution Approach 2:
The cover assembly acts as an intermediary element between the unoccupied/construction area and the occupied room. It provides a filtering interface that allows air to pass through while removing contaminants, thus mediating the harmful interaction between dirty and clean air zones.
2Object-affected harmful factors
If an air filter is permanently installed in the air duct, then air filtering is improved, but installation and maintenance become complex and time-consuming
Solution Approach 1:
The cover assembly is designed to be dynamically removable and reconfigurable rather than permanently fixed. The retainer system allows the cover to be easily attached and detached, enabling quick maintenance and reconfiguration without complex installation procedures, thus improving ease of operation while maintaining effective air filtering.
Solution Approach 2:
The filtering system is segmented into a separate, standalone cover assembly that can be independently removed and maintained. This segmentation allows the filter element to be accessed, cleaned, or replaced without disturbing the entire air conditioning system, significantly reducing maintenance complexity and time.
3Object-affected harmful factors
If the air duct opening is completely covered to prevent contamination, then air filtering is improved, but air circulation is blocked
Solution Approach 1:
The cover assembly implements local quality by providing filtering coverage only where needed while leaving other portions of the duct opening uncovered. The retainer system allows the cover to be positioned to cover specific zones, enabling contaminant prevention in targeted areas while maintaining air flow through uncovered sections.
Solution Approach 2:
The cover assembly incorporates a filter element with porous structure that allows air to pass through while trapping contaminants. This porous design enables the cover to prevent contamination without completely blocking air circulation, as air molecules can penetrate the porous filter material while larger particulate contaminants are retained.
Data Source
AI summary
An air duct opening cover assembly mountable on an air duct opening includes a cover body and a retainer system for securing the cover body across an air duct opening, such as to position an air filter element across the air duct opening. The retainer system may include a releasable clip for attachment to an edge of an air duct opening or ceiling structure. The cover body may include a retention grid for supporting the air filter element. The retainer system may include one or more fasteners, which may be elongated and elastically stretchable and/or adjustable to tension the fastener against the cover body and air filter element.