Solar Array Column Cap for Low-Waste Beam Mounting
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Solution Overview
Problem
Existing column caps for solar arrays are inefficient due to excessive material usage, deformation under load, high fabrication costs, and incompatibility with horizontal beams of non-circular cross sections, making them difficult to install and costly.
Innovation Solution
A column cap design featuring a main body with radial flanges and upper flaps that surround vertical columns, allowing for secure attachment of horizontal beams with U-bolts, and adaptable to both circular and non-circular cross sections through a metal stamping and bending process, reducing material usage and fabrication complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing column caps are made from cast steel or aluminum with welding and machining, then structural strength is achieved, but fabrication cost increases and manufacturing complexity increases
Solution Approach 1:
The invention changes the manufacturing method from traditional cast steel or aluminum requiring welding and machining to a cold-formed metal stamping process. This parameter change in fabrication method reduces fabrication cost and manufacturing complexity while maintaining structural strength through optimized geometry and material selection
Solution Approach 2:
The column cap is divided into separate components (main body, flanges, and web) that are cold-formed and then assembled using bolts or welds. This segmentation allows for simpler individual component fabrication and reduces the complexity of forming the entire cap as a single piece
2Strength
If column caps use excessive steel or aluminum material, then structural strength is ensured, but material waste increases and cost increases
Solution Approach 1:
The invention optimizes material usage by changing from traditional cast designs to cold-formed metal stamping with optimized geometry. The main body, flanges, and web are designed with precise dimensions that provide necessary structural strength while minimizing material consumption and reducing material waste
Solution Approach 2:
The column cap design applies material and structural reinforcement only where needed - the main body provides radial support, flanges extend outward for beam attachment, and web connects them structurally. This localized quality distribution ensures strength where required while avoiding excessive material usage in non-critical areas
3Strength
If column caps are made with complex welding and machining processes, then structural integrity is achieved, but installation difficulty increases and time consumption increases
Solution Approach 1:
The column cap components (main body, flanges, web) are pre-assembled and pre-bolted or pre-welded during manufacturing to form a complete unit. This preliminary assembly ensures structural integrity is achieved during fabrication rather than during field installation, making installation simpler and faster
Solution Approach 2:
The invention changes from complex welding and machining operations to cold-formed metal stamping and simple mechanical assembly. This parameter change in manufacturing process reduces installation difficulty and time consumption while maintaining structural integrity through the cold-formed geometry and assembly design
Data Source
AI summary
Disclosed herein is a solar array column cap that includes a body having an opening extending along a center axis from a bottom to a top, the opening configured to receive the vertical column such that the body surrounds the vertical column. The solar array column cap further includes an upper support surface configured to receive a horizontal beam, the upper support surface being located in a plane that is non-perpendicular with the center axis.