Roll-Formed Solar Rack Channel On-Site Assembly
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Solution Overview
Problem
Conventional solar panel support systems require multiple components, leading to high costs due to manual assembly, potential for human error, size limitations due to transportation constraints, and increased risk of damage during shipping and installation.
Innovation Solution
A one-piece channel-based rack system made from roll-formed sheet metal, allowing on-site production and assembly, which reduces inventory, handling, and assembly costs, while providing a continuous electrical ground for the solar panels and enabling longer lengths without transportation limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional multiple-component systems are used, then assembly flexibility is improved, but device complexity and installation costs increase
Solution Approach 1:
The patent combines multiple separate components (channels, brackets, fasteners) into a single integrated rack system that is roll-formed from continuous sheet metal. This merging eliminates the need for multiple discrete parts while maintaining assembly flexibility through the continuous formable nature of the roll-formed structure.
Solution Approach 2:
The roll-formed rack channel serves multiple functions simultaneously: it provides structural support, electrical grounding continuity, and aerodynamic flow management. This multi-functionality reduces the need for separate components while maintaining system adaptability.
2Adaptability or versatility
If multiple components are used, then adaptability is improved, but loss of substance increases due to damage and loss during shipping
Solution Approach 1:
By combining all rack components into a single continuously roll-formed piece, the patent eliminates the need to ship and handle multiple separate parts. This single-piece construction dramatically reduces the risk of damage and loss during transportation while maintaining design adaptability.
3Ease of operation
If on-site manual assembly is required, then ease of operation is improved, but reliability decreases due to human error
Solution Approach 1:
The rack system is designed with segmented, modular sections that can be easily assembled on-site through simple connections. This segmentation maintains ease of installation while the standardized, pre-engineered connection points reduce the risk of assembly errors compared to custom fabrication.
4Manufacturing precision
If pre-manufactured channels are shipped to site, then manufacturing precision is improved, but loss of time increases due to shipping delays
Solution Approach 1:
The rack channels are roll-formed on-site at the installation location, eliminating the need for prior manufacturing and shipping. This preliminary action of forming channels locally removes shipping delays from the project timeline while maintaining precision through controlled roll-forming processes.
Solution Approach 2:
The system enables on-site production of rack channels through roll-forming equipment located at the installation site. This self-service approach allows the project to produce its own components as needed, eliminating dependence on external manufacturing schedules and shipping logistics.
5Length of stationary object
If transportation of long channels is used, then length of stationary object is improved, but device complexity increases due to transportation constraints
Solution Approach 1:
The rack channels are produced dynamically on-site through roll-forming equipment rather than being statically manufactured and shipped in fixed lengths. This dynamic production method allows channels of any required length to be formed locally, eliminating transportation length constraints and the logistical complexity of coordinating multi-segment assembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces installation costs by 30% and overall costs by 9%, enhances safety with a grounded framework, and minimizes the need for ballast due to aerodynamic benefits, while eliminating the risks associated with manual assembly and transportation-related damages.
Implementation Method 1
the rack channel may be used as a redundant electrical ground circuit for a series of photovoltaic solar panels assembled on the rack channel so as to provide a complete grounded framework
Implementation Method 2
the longitudinal continuity and resulting aerodynamic force reduction can enable less ballast to be used to anchor a system down
Data Source
AI summary
A method of installing on a horizontal or near-horizontal support surface a solar panel array including multiple solar panels may include, at the deployment site, fabricating from metal coil stock longitudinally continuous rack channels each having upstanding legs of different heights, locating the channels in parallel rows with a spacing determined by a width of the solar panels with interior spaces of the channels facing upwardly, weighing the channels down on the support surface by placing ballast in the channel spaces, and positioning the solar panels each with an edge supported by a high leg of one channel of the channels and an opposite edge supported by a low leg of an adjacent channel of the channels.