Flexible Grounding Connector for PV Module Misalignment
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Solution Overview
Problem
The challenge in solar photovoltaic systems is the time-consuming and resource-intensive process of mounting and grounding multiple solar modules on a support structure, such as a roof, which requires efficient methods to minimize installation time and costs.
Innovation Solution
The introduction of a flexible grounding connector that provides an electrical grounding path between solar modules, accommodating misalignment and offset, and can be easily installed between rows or columns of a PV array, allowing for quicker and more efficient electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting methods are used to couple solar modules to support structures, then reliable mechanical attachment is achieved, but installation time and resource requirements increase significantly
Solution Approach 1:
The patent combines the mounting function and grounding function into a single integrated mounting assembly. The grounding conductor is incorporated directly into the mounting assembly, allowing both mechanical attachment and electrical grounding to be accomplished in one installation step rather than separate operations, thereby reducing installation time while maintaining reliability
Solution Approach 2:
The mounting assembly performs multiple functions simultaneously: it provides mechanical support for the solar module, establishes electrical grounding, and facilitates module interconnection. This multi-functional design eliminates the need for separate grounding wires and mounting hardware, streamlining the installation process
2Manufacturing precision
If precise alignment is required for coupling adjacent solar modules, then proper positioning is achieved, but installation complexity and time increase
Solution Approach 1:
The mounting assembly creates an equipotential electrical connection between adjacent modules through the integrated grounding conductor. This ensures that all modules are at the same electrical potential, simplifying the electrical interconnection process while maintaining proper mechanical positioning through the standardized mounting interface
Solution Approach 2:
The mounting assembly is designed to self-align and self-ground during installation. The grounding conductor automatically establishes electrical contact with the module frame when the mounting assembly is installed, eliminating the need for separate alignment and grounding operations by the installer
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 solution significantly reduces installation time and resources by simplifying the grounding process, enabling faster assembly of solar module arrays while maintaining effective electrical connectivity.
Implementation Method 1
a flexible grounding connector positioned between a plurality of photovoltaic (PV) modules, adjacent rows of PV modules in an array and/or a column of PV modules in an array
Data Source
AI summary
Improved PV assemblies for converting solar radiation to electrical energy and methods of installation thereof are disclosed herein. PV arrays comprising a plurality PV modules are also described herein. A PV assembly can comprise a plurality of PV modules arranged into rows and/or columns of a PV array. A PV module can comprise a plurality of solar cells encapsulated within a PV laminate. In some embodiments, a PV module includes a frame at least partially surrounding the PV laminate. A PV assembly can further comprise at least one flexible grounding connector positioned between a plurality of PV modules, adjacent rows of PV modules in an array and/or a column of PV modules in an array. A flexible grounding connector can comprise a first and a second engagement head for engaging a first and a second PV module. A flexible grounding connector can further comprise a flexible body portion coupling first and second engagement heads. The flexible body portion of the flexible grounding connector can be electrically conductive so as to provide an electrical grounding path between first and second PV modules and accommodate any misalignment or offset between first and second PV modules.