HVAC filter locking systems and methods
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Solution Overview
Problem
Existing HVAC systems face challenges in efficiently and cost-effectively securing HEPA filters, as current filter security systems require excessive manufacturing time, complex assembly, and often necessitate the use of tools or complex machinery.
Innovation Solution
A filter housing system with a connecting channel and locking system that secures the filter via rotation of a screw, allowing for tool-free installation and reduced manufacturing complexity, utilizing an enclosure with a bracket and nut configuration that applies pressure to the filter for securement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional filter security systems are used, then the filter can be secured within the HVAC system, but the manufacturing and assembly process becomes complex and time-consuming
Solution Approach 1:
The locking system is divided into separate modular components: a locking mechanism with movable and fixed locking surfaces, and a filter frame with corresponding engagement features. This segmentation allows each component to be manufactured independently using simpler processes while maintaining reliable filter security when assembled.
Solution Approach 2:
The locking system is designed to be self-securing through the interaction of the movable locking surface and the engagement feature on the filter frame. The spring-loaded movable locking surface automatically engages with the filter frame when the filter is installed, eliminating the need for complex assembly operations or specialized tools.
2Reliability
If traditional filter security systems are used, then the filter can be secured within the HVAC system, but excessive time is required for manufacturing and assembly
Solution Approach 1:
The movable locking surface is pre-configured with a spring mechanism that stores elastic potential energy. This preliminary action allows the locking surface to be ready to engage immediately when the filter is inserted, eliminating the need for time-consuming manual adjustment or complex assembly steps during installation.
Solution Approach 2:
The spring-loaded movable locking surface automatically engages with the filter frame's engagement feature through self-service action. This automatic engagement significantly reduces assembly time while maintaining reliable filter security, as no manual intervention or complex machinery is required during the locking process.
3Reliability
If complex locking mechanisms are used, then the filter can be securely held, but tool-free installation becomes difficult
Solution Approach 1:
The locking system is designed as a self-service mechanism where the spring-loaded movable locking surface automatically engages with the filter frame when the filter is inserted. This eliminates the need for tools or complex manual operations, allowing installation personnel to quickly secure the filter by simply placing it into position.
Solution Approach 2:
Instead of requiring active engagement (such as tightening screws or manipulating complex mechanisms), the system is inverted to use passive engagement. The spring-loaded movable locking surface is positioned to automatically contact and secure the filter frame upon insertion, reversing the traditional approach where the installer must actively secure the filter.
Data Source
AI summary
In an embodiment of the present disclosure, a filter housing system of a heating, ventilating, and air conditioning (HVAC) system includes an enclosure configured to support a filter, a connecting channel disposed within a corner of the enclosure and coupled to the enclosure, and a locking system configured to couple to the connecting channel and configured to secure the filter within the enclosure. The locking system is configured to secure the filter within the enclosure via rotation of a screw.