Side panel assembly for roof top units
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Solution Overview
Problem
Existing HVAC systems with single wall panels often experience inefficient operation due to air flow bypassing conditioning equipment, leading to suboptimal thermal regulation and increased costs associated with double wall panel constructions.
Innovation Solution
A wall panel assembly with a single sheet panel and attached stiffeners, including a raised portion for sealing engagement with internal components, which reduces air flow bypass and enhances structural rigidity without the need for a double wall construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single wall panel construction is used, then manufacturing cost is reduced, but air flow bypasses conditioning equipment resulting in inefficient operation
Solution Approach 1:
The wall panel is segmented into multiple functional zones: a main body portion and extended stiffener portions. The stiffener portions are configured to engage with specific components (rack, filter, heat exchanger) to seal gaps and prevent air bypass, while the main body provides structural support. This segmentation allows a single panel to achieve both cost efficiency and operational reliability.
Solution Approach 2:
The wall panel is designed as a multi-functional component that simultaneously provides structural support, air sealing, and component engagement functions. The extended stiffener portions serve dual purposes: reinforcing the panel structure and creating sealing interfaces with internal components, eliminating the need for separate sealing components and reducing overall system complexity.
2Reliability
If a double wall panel construction is used, then air flow bypass is prevented, but manufacturing cost increases
Solution Approach 1:
Instead of using two separate wall panels, the invention segments a single panel into functional zones with extended stiffener portions that engage with internal components. This segmentation achieves the air sealing effect of double wall construction through strategic extensions rather than additional panels, reducing material and assembly costs.
Solution Approach 2:
The invention merges the sealing function and structural support function into a single wall panel by integrating extended stiffener portions that both reinforce the panel and create sealing interfaces. This consolidation eliminates the need for separate sealing components or double wall construction while maintaining operational reliability.
3Strength
If stiffeners are added to the panel, then structural rigidity is enhanced, but device complexity increases
Solution Approach 1:
The stiffeners are merged with the wall panel body to form an integrated structure. The extended stiffener portions are continuous with the panel, eliminating the need for separate attachment operations. This integration enhances rigidity while minimizing assembly complexity and the number of discrete components.
Solution Approach 2:
The stiffener portions serve multiple functions simultaneously: providing structural rigidity to the panel, creating sealing interfaces with internal components, and defining engagement geometries. This multi-functionality reduces the need for additional specialized components, thereby reducing overall device complexity despite the enhanced structural features.
Data Source
AI summary
A wall panel assembly for a heating, ventilation, and air conditioning (HVAC) unit includes a panel having a main body, where the panel is configured to be fastened to a frame of the HVAC unit, and a plurality of stiffeners attached to the panel along a perimeter of the main body. A stiffener of the plurality of stiffeners includes a flat portion and a raised portion offset from the flat portion, where the raised portion is configured to sealingly engage with a component disposed within the HVAC unit.