Hinged Filter Holding Frame with Integrated Latch Mechanism
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Solution Overview
Problem
The installation and removal of high efficiency filters in filtration systems are time-consuming and costly due to the need for mechanical clamping mechanisms and various fasteners, especially in large systems where dozens or hundreds of filters must be regularly replaced.
Innovation Solution
A frame assembly with an integral holding frame/clamp that is hinged and latched, allowing for tool-free operation to secure and seal high efficiency filters, while also accommodating prefilters and lower efficiency filters without the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical clamping mechanisms and fasteners are used to secure high efficiency filters, then the seal effectiveness is improved, but the operation time and cost increase
Solution Approach 1:
The filter holding frame is divided into a stationary frame and a movable clamping frame that can be independently operated. The clamping frame with integrated latch mechanism can be quickly opened and closed without tools, while the stationary frame provides structural support and sealing surfaces.
Solution Approach 2:
The latch mechanism is pre-configured in the clamping frame to automatically engage with the stationary frame when the clamping frame is closed. This preliminary positioning of the latch eliminates the need for manual fastening operations during filter replacement.
2Reliability
If tools such as wrenches and ratchets are used to operate fasteners, then the clamping force and seal reliability are improved, but the ease of operation deteriorates
Solution Approach 1:
The clamping frame is designed with an integrated latch mechanism that automatically engages and disengages without requiring external tools. The operator simply needs to open or close the clamping frame, and the latch self-activates to secure or release the filter, making the system self-servicing.
Solution Approach 2:
The clamping frame is made movable and flexible rather than fixed, allowing it to be easily opened and closed by hand. This dynamic design enables quick filter access while maintaining adequate clamping force when closed, eliminating the need for rigid tool-operated fasteners.
3Adaptability or versatility
If multiple types of fasteners and clamping mechanisms are used for different filters, then the adaptability to different filter types is improved, but the device complexity increases
Solution Approach 1:
The clamping frame with latch mechanism is designed as a universal solution that can accommodate multiple filter types including high efficiency filters, prefilters, and rigid filters. The same clamping and latching system works for all filter types, eliminating the need for different fastening mechanisms for different applications.
Data Source
AI summary
Embodiments of the invention generally provide a frame assembly having an integral holding frame/clamp. The frame assembly is typically mounted in a housing of an air handler or other air moving conduit. The holding frame/clamp is coupled to the frame assembly by a hinge. The holding frame/lamp is configured to retain a prefilter. When the holding frame/clamp is to a closed position, the holding frame/clamp urges a final filter sealingly against the frame assembly. The clamp holding frame/clamp is maintained in the closed position by a latch. The latch facilitates removal and replacement of the final ter rapidly without tools, thereby substantially reducing the expense associated with filter change out.