Frameless solar module mounting
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Solution Overview
Problem
Conventional solar tracking mechanisms are inadequate in optimizing energy conversion from solar panels due to suboptimal sun angles, leading to reduced energy output.
Innovation Solution
A clamp assembly for glass-on-glass solar modules that includes a torque tube system with a top-hat shaped rail structure and locking spacers, allowing the modules to pivot radially and securely attach to a torque tube, preventing slippage and maintaining position during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional solar tracking mechanisms are used, then solar panels can be mounted and tracked, but energy conversion efficiency is reduced due to suboptimal sun angle alignment
Solution Approach 1:
The solar tracking system employs dynamic adjustment mechanisms that allow solar panels to continuously change their orientation angles (azimuth and elevation) in response to real-time sun position data. This dynamic capability enables the system to maintain optimal alignment throughout the day, maximizing energy conversion efficiency and eliminating the static positioning limitations of conventional mounting systems.
Solution Approach 2:
The tracking system incorporates feedback mechanisms through sensors (such as light sensors or GPS-based sun position algorithms) that continuously monitor sun position and panel orientation. This feedback loop allows the control system to automatically adjust panel angles to maintain optimal alignment, ensuring maximum energy capture while adapting to changing environmental conditions.
2Stability of the object's composition
If solar panels are mounted on conventional rigid structures, then structural stability is achieved, but mechanical stress and potential damage occur during tracking movement
Solution Approach 1:
The mounting system utilizes flexible coupling mechanisms and compliant mounting structures that can accommodate movement and stress during tracking operations. These flexible elements allow the rigid solar panels to be mounted on a moving platform without transmitting excessive mechanical stress to the panels themselves, thereby maintaining both structural stability and stress resistance.
Solution Approach 2:
The system incorporates damping elements and shock-absorbing mechanisms in the mounting structure that are designed to cushion mechanical impacts and stresses before they reach the solar panels. This protective design prevents damage during tracking movements, especially during sudden changes in position or environmental disturbances like wind loads.
3Strength
If frameless glass-on-glass solar modules are used, then aesthetic appearance and durability are improved, but secure mounting becomes more difficult
Solution Approach 1:
The mounting system employs intermediary components such as specialized clamps, edge-gripping mechanisms, or adhesive bonding systems that are specifically designed to secure frameless glass modules. These intermediary elements provide the necessary attachment points and distribution of forces, making it easier to mount frameless modules while maintaining their structural integrity and durability.
Solution Approach 2:
The mounting system applies localized attachment methods at specific points on the glass module edges or surfaces, rather than requiring a frame structure. This local quality approach uses targeted fastening or bonding zones that preserve the overall frameless design while providing secure mounting capability, balancing ease of installation with module durability.
Data Source
AI summary
In an example, a clamp assembly for a glass on glass solar module for a tracker is included. The assembly has a lower clamp structure characterized by a top-hat shaped rail structure having a length extending from a first end to a second end. In an example, the assembly has an upper clamp structure configured to sandwich a pair of edges of a pair of solar modules with a portion of the lower clamp structure. In an example, the assembly has a locking spacer configured to the pair of edges of the pair of solar modules. In an example, the pair of edges comprises substantially glass material. In an example, the assembly has a pair of key structures configured with the locking spacer. Each of the key structures is affixed to each of the solar modules to physically lock each of the solar modules to the upper clamp structure.