Solar Panel Frame Clamps With Integrated Grounding Contacts

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Solution Overview

Problem

The high labor and material costs associated with installing solar cell panels are due to the complex multi-step process of attaching them to racking systems, which involves numerous components and labor-intensive procedures.

Innovation Solution

The introduction of solar panel frame clamps with threaded apertures and set screws that provide electrical continuity, allowing for simplified attachment of mounting rails to purlins, reducing the number of components and labor required for installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complicated multi-step process involving grounding conductors and clamps/bolts is used to attach solar panels to racking systems, then electrical continuity and structural integrity are ensured, but labor cost and installation time increase significantly

Engineering Contradiction:
Improveelectrical continuityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The clamp integrates multiple functions into a single component: it provides mechanical clamping of the solar panel frame to the racking system, establishes electrical continuity through integrated grounding contacts, and secures the mounting rail to the purlin. This merging of clamping, grounding, and electrical continuity functions into one device eliminates the need for separate grounding conductors and multiple fastening operations, thereby reducing installation time while maintaining reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The clamp serves multiple purposes simultaneously: it acts as a mechanical fastener to secure the solar panel frame, provides an electrical ground path through its conductive body and integrated grounding contacts, and maintains electrical continuity across the racking system. This multi-functionality reduces the number of components needed and simplifies the installation process while ensuring both structural and electrical requirements are met

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple separate components (grounding conductors, clamps, bolts) are used to attach solar panels, then electrical continuity is established, but the number of components and material cost increase

Engineering Contradiction:
Improveelectrical continuityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The clamp combines what were previously separate components into a single integrated device. The grounding contacts are built into the clamp body itself, eliminating the need for separate grounding conductors. The clamp body serves as both the mechanical fastening element and the electrical ground path, reducing the total component count while maintaining electrical continuity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The clamp is designed to perform multiple functions that previously required separate components: mechanical clamping, electrical grounding, and maintaining electrical continuity. This multi-functional design reduces the quantity of components needed for installation while ensuring all electrical and mechanical requirements are satisfied

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If a simple clamp design is used to reduce component数量, then installation complexity decreases, but electrical continuity may be compromised

Engineering Contradiction:
Improveinstallation complexityVSAvoidelectrical continuity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The clamp merges mechanical fastening and electrical grounding functions into a single component. The grounding contacts are integrated directly into the clamp body, so the same device that provides mechanical clamping also establishes electrical continuity. This integration ensures that simplifying the component count does not compromise electrical continuity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The clamp is designed as a multi-functional device that simultaneously provides mechanical support and electrical grounding. The conductive clamp body with integrated grounding contacts ensures that electrical continuity is maintained as part of the basic clamping function, not as an add-on feature. This universality allows the device to maintain reliability while reducing complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 costs by streamlining the attachment process and ensuring electrical continuity throughout the solar panel racking system, while maintaining structural integrity and electrical connectivity.

Implementation Method 1

The set screw can contact a mounting rail that supports one or more solar panel frames to provide electrical continuity throughout a solar panel racking system

Methodology Applied
Scientific EffectElectrical Conduction: Conduction (electrical)

Implementation Method 2

The set screw bolt may engage a purlin (or other suitable rail) to clamp the mounting rail to the purlin

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentUS9528725B2Solar panel frame clamps mounting a solar panel frame to a purlin
Publication Date: 2016.12.27 SUNRUN SOUTH LLC
  • US9528725B2 patent drawing
  • US9528725B2 patent drawing
  • US9528725B2 patent drawing

AI summary

Solar panel frame clamps are disclosed. The clamps can include a clamp body for coupling together a mounting rail of a solar panel frame and a purlin. The clamp body may be c-shaped with ends of the clamp body defining an opening for receiving objects to be clamped. The ends of the clamp body may be provided with threaded apertures for receiving a set screw and a set screw bolt. Tightening the set screw bolt can pull the clamp body towards the objects to be clamped. The set screw, or another suitable feature, may contact the clamped object to facilitate electrical continuity throughout a system incorporating the solar panel frame clamps.