Mounting rails
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Solution Overview
Problem
Aligning and maintaining alignment of PV modules relative to mounting rails in solar installations is difficult and time-consuming, leading to misalignment and increased operational costs due to module damage and reduced lifespan.
Innovation Solution
A mounting rail system with alignment members that physically engage with PV module side surfaces to align and retention members that prevent lateral movement, simplifying installation and ensuring proper positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If PV modules are manually aligned relative to mounting rails during installation, then alignment can be achieved, but the process becomes difficult and time-consuming due to the heavy and cumbersome nature of PV modules
Solution Approach 1:
The mounting rail includes pre-formed alignment members (such as alignment tabs or guide features) that are prepared in advance during manufacturing. These alignment members protrude from the rail and automatically guide the PV module into the correct position when the module is placed on the rail, eliminating the need for manual alignment adjustments during installation.
Solution Approach 2:
The alignment members act as an intermediary mechanism between the mounting rail and the PV module. Instead of directly manipulating the heavy PV module for alignment, the alignment members (such as tabs or guide features on the rail) serve as a mediating structure that automatically positions the module correctly through physical engagement.
2Reliability
If PV modules are manually positioned and secured on mounting rails, then modules can be installed, but misalignment is common which can cause adjacent modules to contact each other and damage them
Solution Approach 1:
The retention members (such as retention tabs or clamps) are designed to preemptively prevent lateral movement of PV modules before misalignment can occur. These members engage with the modules to counteract any forces that might cause shifting or contact between adjacent modules, thereby preventing damage before it happens.
Solution Approach 2:
The alignment members are pre-configured on the mounting rail to automatically position PV modules in the correct alignment when installed. This preliminary positioning action ensures that modules are correctly positioned from the start, preventing misalignment and subsequent contact damage between adjacent modules.
3Device complexity
If traditional mounting systems without alignment members are used, then the mounting rail structure can be simpler, but visual alignment or trial and error methods are required which complicate the installation process
Solution Approach 1:
The alignment members and retention members are designed to perform their functions automatically without requiring operator skill or judgment. The alignment members self-align the PV modules through physical engagement, and the retention members self-secure the modules in place, making the installation process intuitive and easy to perform correctly on the first attempt.
Solution Approach 2:
All necessary alignment and retention features are pre-configured on the mounting rail during manufacturing. This preliminary preparation eliminates the need for complex manual alignment procedures or trial-and-error adjustments during installation, simplifying the operation while adding minimal structural complexity.
Data Source
AI summary
A mounting rail configured to connect to a photovoltaic (PV) module may include an upper portion, a first alignment member, and a second alignment member. The upper portion may include a surface configured to physically engage with a bottom surface of a module rail associated with the PV module. The first alignment member may extend from the surface of the upper portion at a first location. The first alignment member may also be configured to physically engage with a side surface of the module rail. The second alignment member may extend from the surface of the upper portion at a second location. The second alignment member may also be configured to physically engage with the side surface of the module rail.