Single axis solar tracking assembly and method of installing such single axis solar tracking assembly
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Solution Overview
Problem
Existing solar tracking assemblies are cumbersome to store and transport due to their design, requiring disconnection of spine sections and specific installation methods, which increases logistical and security risks and costs, especially in remote areas with high solar radiation.
Innovation Solution
A single axis solar tracking assembly with spine sections connected by universal joints, allowing for folding in a zig zag fashion into a compact storage position, and deployment into an operative work position without additional mounting, utilizing an auxiliary shaft and electric motor for sun tracking, and featuring adjustable supporting legs for easy installation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the solar tracking assembly is designed with rigid spine sections connected by universal joints, then the structural strength and stability are improved, but the storage volume and transport difficulty increase
Solution Approach 1:
The spine is divided into multiple collapsible sections that can be folded relative to each other. Each section maintains structural integrity through internal bracing while allowing the overall assembly to compact into a smaller volume for transport and storage.
Solution Approach 2:
The collapsible spine sections are designed to nest within each other when folded, similar to nested dolls. The universal joints allow sections to telescope and fold concentrically, minimizing the storage volume while maintaining structural strength when deployed.
2Stability of the object's composition
If the brackets are positioned on opposite sides of the spine section, then the structural stability is improved, but the width of the tracker increases causing shading effects
Solution Approach 1:
The bracket positioning transitions from a symmetric opposite-sided arrangement to an asymmetric configuration where brackets are positioned on the same side or offset positions. This asymmetric design reduces the overall tracker width and minimizes shading effects while maintaining structural stability through strategic placement and bracing.
3Manufacturing precision
If the spine assembly requires on-site mounting with specific lifting means, then the installation precision is improved, but the installation cost and complexity increase
Solution Approach 1:
The spine assembly is pre-assembled and pre-positioned in a factory setting with all necessary components and alignment features already in place. This preliminary assembly ensures precision without requiring complex on-site mounting operations or specialized lifting equipment, as the unit arrives ready for straightforward installation.
4Productivity
If the solar tracking assembly is designed for fixed installation, then the energy collection efficiency is improved, but the flexibility and relocation capability decrease
Solution Approach 1:
The solar tracking assembly incorporates dynamic elements including collapsible spine sections, movable support legs, and adjustable bracket positions. These dynamic features allow the structure to be easily assembled, disassembled, and relocated while maintaining optimal sun-tracking capability and energy collection efficiency at each installation site.
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 design enhances flexibility and cost-effectiveness by minimizing storage volume, reducing installation costs, and optimizing solar energy collection, while allowing for easier maintenance and reduced shading between trackers, especially in large-scale remote installations.
Implementation Method 1
An auxiliary shaft is located between adjacent universal joints connected to adjacent ends of two spine sections. Both ends of the output shaft of the electric motor are connected to the adjacent spine sections by universal joints.
Implementation Method 2
Each of the universal joints comprises a cross member defining perpendicularly crossed first and second spine hinge axes, a first yoke rigidly attached to one end of one of the spine sections and connected to the cross member to rotate about the first spine hinge axis, and a second yoke rigidly attached to one end of the auxiliary shaft and connected to the cross member to rotate about the second spine hinge axis.
Data Source
Figure 1~2
Figure 3~6C
Figure 4~7
AI summary
The single axis solar tracking assembly comprises a plurality of spine sections (2) connected to one another by universal joints (10), supporting legs (3) rotatably supporting the spine sections (2) on the ground, a plurality of brackets attached to each spine section (2), a plurality of rib members (4) connected to the brackets, and solar panels (5) secured to the rib members (4). The rib members (4) are moveable between a folded position and a deployed position. An auxiliary shaft is located between adjacent universal joints (10) connected to adjacent spine sections (2). First and second crossed spine hinge axes of the universal joints are arranged so that the spine sections (2) can be fold at right angles to the auxiliary shaft and the spine sections (2) can be fold in a zig zag fashion into a compact storage position in which the solar panels are arranged in adjacent parallel planes.