Self-Adjusting End Clamp for Ballasted Solar Panel Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional solar panel installation methods require penetrating the surface to secure solar panels, which compromises the integrity of the surface and can lead to damage from wind and seismic activity, especially on rooftops where moisture protection is compromised.
Innovation Solution
The wind tunnel optimized solar panel system uses a racking system with windscreens and ballast weights to reduce uplift and increase downforce, allowing for secure installation without surface penetrations, and incorporates self-adjusting end clamps and shared rails for efficient assembly and structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surface penetration methods (screws, anchors) are used to secure solar panels, then the solar panel system is adequately secured against wind and seismic activity, but the surface integrity is compromised and moisture protection is weakened
Solution Approach 1:
The patent extracts the harmful penetration action from the securing process by using a ballasted racking system that relies on gravity and friction rather than mechanical fasteners. The ballast weights create sufficient downforce to counteract wind uplift and seismic forces without requiring any penetration of the roof surface, thereby eliminating the contradiction between securing reliability and surface integrity.
Solution Approach 2:
The patent applies the anti-weight principle by using ballast weights that generate gravitational force to counterbalance the uplift forces from wind and lateral forces from seismic activity. The ballasted racking system uses the weight of the balls as a counteracting force to secure the solar panels without penetration, resolving the contradiction between achieving reliable securing and maintaining surface integrity.
2Strength
If multiple surface penetrations are made to secure solar panels, then the solar panel system is firmly anchored, but the surface's moisture protection is compromised
Solution Approach 1:
The patent removes the penetration step entirely from the installation process by employing a ballasted racking system. The anchoring strength is achieved through gravitational force from ballast weights and friction between the racking components and the roof surface, eliminating the need for screws, anchors, or any other penetrating fasteners that would compromise moisture protection.
Solution Approach 2:
The patent introduces an intermediary mechanism (the ballasted racking system with windscreens) that mediates between the solar panels and the roof surface. This intermediary system transfers and distributes the securing forces through friction and gravity rather than direct penetration, protecting the roof's moisture barrier while achieving firm anchoring.
3Ease of manufacture
If conventional racking systems are used without wind optimization, then installation is simpler, but wind uplift forces increase and require more secure (penetrating) attachments
Solution Approach 1:
The patent converts the harmful wind uplift force into a beneficial stabilizing effect by using windscreens that redirect wind flow. The windscreens create a pressure differential that generates downforce on the solar panels, effectively using the wind itself to help secure the system rather than merely resisting it. This reduces the net uplift force while maintaining installation simplicity through the ballasted system.
Solution Approach 2:
The patent applies dynamics by using windscreens that actively interact with wind flow to dynamically generate stabilizing forces. The windscreens are positioned to optimize wind flow redirection, creating variable downforce that adapts to wind conditions. This dynamic approach reduces the required ballast weight while maintaining security without penetration.
4Reliability
If ballast weights are added to counteract wind and seismic forces, then the solar panel system stability improves, but the overall system weight increases
Solution Approach 1:
The patent converts the harmful wind force into a beneficial downforce through windscreens that redirect airflow. This wind-generated downforce offsets the need for heavy ballast weights, as the windscreens create a pressure differential that actively pushes the solar panels downward during windy conditions. This reduces the system weight while maintaining or improving stability.
Solution Approach 2:
The patent changes the physical parameters of the system by introducing windscreens that alter wind flow characteristics. This parameter change (wind flow redirection) creates a force counterbalance that reduces the required ballast weight. The optimal number and positioning of windscreens are determined to achieve the desired stability with minimized additional weight.
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 reduces the need for surface penetrations, simplifies the installation process, lowers installation costs, and enhances the stability of solar panels against wind and seismic forces, while maintaining surface integrity.
Implementation Method 1
The windscreens can also include a rack for holding a number of ballast weights that use the force of gravity to keep the solar panel system in place, even in the face of wind and/or seismic activity.
Implementation Method 2
The size and placement of the windscreens have been refined through testing to allow pressure equalization in high lift situations as a result of tight fit to the mounting surface and strategic venting.
Data Source
AI summary
Self-adjusting end clamps are disclosed. The clamps may include a top member and a bottom member having vertically arranged holes. As a bolt placed in the vertically arranged holes is tightened, the top and bottom members move toward one another to grip an object therebetween.