Interlocking Torque Tube Mount for Sun-Tracking Photovoltaic Modules
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Solution Overview
Problem
Existing photovoltaic (PV) module mounting systems do not efficiently allow for the rotation of PV modules to track the motion of the sun, which limits their electrical efficiency.
Innovation Solution
An interlocking system that connects PV module frames to a torque tube using an interlock with couplings or flanges, allowing for easy rotation and alignment of PV modules, reducing material usage and labor costs by minimizing the number of required parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional mounting systems are used to connect PV modules, then the modules can be securely mounted, but the system cannot efficiently rotate PV modules to track the sun's motion
Solution Approach 1:
The interlock combines multiple functions into a single device: it secures PV modules to the torque tube, enables rotational movement for sun tracking, and provides structural support. This merging of mounting and tracking functions into one integrated component resolves the contradiction by achieving sun tracking capability without proportionally increasing system complexity
Solution Approach 2:
The interlock serves multiple purposes: it acts as a mounting bracket, a rotational joint, and a structural connector simultaneously. This multi-functionality allows the system to achieve sun tracking versatility while minimizing the number of separate components needed, thereby reducing overall system complexity
2Reliability
If multiple separate components are used to mount PV modules to torque tubes, then secure mounting is achieved, but material usage and labor costs increase
Solution Approach 1:
The interlock merges multiple separate mounting components into a single integrated part that performs all necessary functions: securing the PV module, connecting to the torque tube, and enabling rotation. This consolidation reduces the quantity of parts from multiple separate components to just one interlock per module, while maintaining mounting security
Solution Approach 2:
The single interlock component performs multiple functions that would traditionally require separate parts: it provides structural support, enables rotational movement, and secures the module to the torque tube. This multi-functionality reduces the number of parts needed while ensuring reliable mounting
3Productivity
If PV modules are mounted on fixed mounting systems, then installation is straightforward, but electrical efficiency decreases due to inability to track sun motion
Solution Approach 1:
The interlock incorporates a rotational joint that allows the PV module to dynamically adjust its orientation to track the sun's motion throughout the day. This dynamic capability increases electrical efficiency by maintaining optimal sunlight exposure, while the rotational mechanism is designed to be simple and straightforward to install
Solution Approach 2:
The system merges the fixed mounting function with the dynamic tracking function into a single integrated interlock assembly. This combination allows the module to be simply installed like a fixed mount while simultaneously gaining sun tracking capability, thus improving electrical efficiency without complicating the assembly process
Data Source
AI summary
An interlocking system for connecting photovoltaic module frames to a torque tube, including: (a) an interlock dimensioned to be positioned between the sides of two adjacent photovoltaic module frames; (b) a pair of couplings or flanges, wherein the couplings or flanges connect the interlock to both of the adjacent photovoltaic module frames; and (c) a U-lock connected to the interlock, wherein the U-lock is dimensioned to be connected to a torque tube.