Retrofit Filter Screen Mounting Without Drilling Unit Panels
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Solution Overview
Problem
Existing filter screen assemblies for exterior air treatment units risk damaging units when new fastener holes are drilled, potentially rupturing fluid coils or damaging electrical/mechanical components during installation.
Innovation Solution
A retrofit installation kit with a flexible filtration screen and customized fasteners that substitute for original fasteners, using washers to secure the screen without drilling new holes, ensuring safe installation and preventing damage to sensitive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If new fastener holes are drilled for securing the filter screen, then the filter screen can be securely attached to the unit, but the unit may be damaged including coil rupture or damage to electrical/mechanical components
Solution Approach 1:
The patent introduces a retrofit fastener system that acts as an intermediary between the filter screen and the unit frame. These fasteners utilize existing mounting locations rather than creating new holes, thereby mediating the attachment process to avoid direct damage to sensitive components while still achieving secure attachment of the filtration screen.
Solution Approach 2:
The retrofit fasteners are designed to be installed before the filter screen is attached, utilizing pre-existing mounting holes in the unit frame. This preliminary action of positioning the fasteners in existing holes prevents the need to drill new holes that could damage coils or electrical components during the filter screen installation process.
2Object-affected harmful factors
If retrofit fasteners are used to secure the filter screen without drilling new holes, then unit damage is prevented, but the attachment security may be compromised
Solution Approach 1:
The retrofit fastener system is segmented into multiple components including the fastener body, washer, and filter screen attachment mechanism. This segmentation allows each component to perform its specific function: the fastener utilizes existing mounting holes, the washer distributes load to prevent frame damage, and the attachment mechanism secures the filter screen, collectively achieving both safety and security.
Solution Approach 2:
The patent employs parameter changes in the fastener design, such as varying the washer thickness, fastener length, and attachment mechanism dimensions, to optimize the balance between preventing unit damage and ensuring adequate attachment security. These parameter adjustments allow the system to achieve secure attachment without compromising the unit structure.
Data Source
AI summary
A retrofit installation kit for use with such as an exteriorly located air conditioner condensing unit. The kit includes a flexible filtration screen and a set of customized fasteners which substitute for existing fasteners used to hold together the outer sheathing of the unit frame. The substitution of fasteners for the typical mounting screws utilized in the original unit construction precludes the possibility of such as damaging the unit due to drilling new fastener holes, this running the risk of rupturing fluid coils within the unit, or damaging other sensitive electrical or mechanical components.