Solar Panel Cam Lock Assembly for Tool-Free Grounding
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Solution Overview
Problem
The installation of solar panel arrays on residential roofs is arduous and time-consuming, particularly in rail-less guide systems, due to the difficulty in securing and grounding solar panel modules without additional tools, and existing solutions are either unsatisfactory or overly complex.
Innovation Solution
A cam lock mechanism with a raised portion for electrical grounding is used to secure solar panel modules to individual pivotable support mounts, allowing easy installation and grounding without the need for additional tools, utilizing rotatable cam locks that penetrate the oxidation layer of the modules for secure lateral positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If discrete support elements in a rail-less configuration are used, then the system allows flexible positioning of solar panels, but securing each panel requires additional tools and is difficult to install by hand
Solution Approach 1:
The patent combines the securing function and grounding function into a single integrated cam lock mechanism. The cam lock includes a locking portion that secures the solar panel to the mount and a grounding portion that provides electrical grounding, eliminating the need for separate tools and operations.
Solution Approach 2:
The cam lock mechanism performs multiple functions simultaneously: it secures the solar panel module to the mount, provides electrical grounding, and does so with a single hand-operated component. This multi-functional design eliminates the need for additional tools during installation.
2Reliability
If separate grounding components are used, then electrical grounding can be achieved, but the overall system complexity and number of components increases
Solution Approach 1:
The grounding portion is integrated directly into the cam lock mechanism, combining the securing and grounding functions in a single component. This eliminates the need for separate grounding wires, clamps, or connectors that would otherwise be required.
Solution Approach 2:
The cam lock serves as both a mechanical securing device and an electrical grounding device. The single component performs dual functions, reducing the overall number of parts and simplifying the system architecture while ensuring reliable electrical grounding.
3Strength
If traditional locking mechanisms are used, then solar panels can be secured, but the installation process becomes time-consuming and requires special tools
Solution Approach 1:
The cam lock mechanism is designed to be operated by hand without requiring any special tools. The installer can directly manipulate the cam lock to secure the panel, making the system self-servicing and eliminating tool-dependent installation steps that slow down productivity.
Solution Approach 2:
By combining securing and grounding operations into a single cam lock activation, the installation process is streamlined. One action accomplishes both functions, doubling the effective installation speed compared to sequential operations.
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 simplifies the installation process by allowing easy securing and grounding of solar panel modules to support mounts, reducing installation time and complexity while maintaining electrical connectivity, and is easier to manufacture compared to existing systems.
Implementation Method 1
As the lock is rotated into the locking position, it laterally thrusts the edge of the module into a lip along the outer edge of the mount thereby securing the module and preventing it from moving laterally along the mount
Implementation Method 2
As the lock is thrust into the locking position a raised portion on the lock penetrates an oxidation layer on the module, which allows the module to be electrically grounded to the mount
Data Source
AI summary
In various representative aspects, an assembly for securing array skirts and solar panel modules in an array on a roof by utilizing rotatable locking mechanisms that both secure the solar panel modules to mounting plates and splices as well as providing a grounding path between the solar panel modules and the entire array. A method of installation of the assembly is also provided.