Universal Solar Panel End Clamp for Hidden Rail Mounting

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Solution Overview

Problem

Traditional solar panel mounting systems on roofs are aesthetically unappealing due to visible attachment hardware, and existing end clamps require multiple sizes to accommodate various solar module heights, increasing costs and complexity.

Innovation Solution

A universal end clamp that applies torque to clamp the solar module's lower flange to the rail, using components like threaded bolts, T-slides, drive blocks, cams, coil springs, and offset drive brackets to generate a compressive clamping force, allowing the rail to be trimmed flush with the module edge and hidden from view.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional T-shaped mounting brackets are used to attach solar panels to rails, then the solar panels can be securely mounted, but the attachment hardware becomes visible from the top, creating an aesthetic distraction

Engineering Contradiction:
Improvesecure mountingVSAvoidaesthetic distraction
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The mounting bracket is extracted from the visible top surface and repositioned to the underside of the solar panel. The clamp attaches to the lower flange of the module frame from below, securing the panel to the rail while remaining completely hidden from the top view, thus eliminating the aesthetic distraction while maintaining secure mounting

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If multiple sizes of end clamps are produced to accommodate various module frame heights, then different module manufacturers' products can be accommodated, but costs increase due to stocking multiple SKUs

Engineering Contradiction:
Improveaccommodation of various module heightsVSAvoidmultiple SKU inventory
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The end clamp is designed with a universal adjustment mechanism that allows a single clamp size to accommodate various module frame heights. The clamp body can be adjusted along the rail to different positions, and the clamping force can be modified to suit different frame heights, enabling one clamp design to serve multiple functions across different module manufacturers' products

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

3Adaptability or versatility

If the rail extends beyond the edge of the solar module by about 1.5 inches, then traditional end clamps can accommodate various module heights, but the rail cannot be trimmed flush with the module edge

Engineering Contradiction:
Improveaccommodation of various module heightsVSAvoidflush trim capability
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The end clamp incorporates dynamic adjustment capabilities that allow it to adapt to different module heights without requiring a fixed rail extension. The clamp can be positioned and adjusted along the rail to accommodate various frame heights, enabling the rail to be trimmed flush with the module edge while still providing secure attachment for different module sizes

Inventive Principle:
Principle #15Dynamics

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

The solution provides a clean, uncluttered appearance by hiding the hardware and offers a one-size-fits-all solution that reduces costs and complexity by accommodating various module heights with a single clamp design, ensuring secure and efficient mounting.

Implementation Method 1

means for applying a torque to a clamp body and generating a compressive clamping force

Methodology Applied
Scientific EffectTorque: Torque

Implementation Method 2

generating a compressive clamping force between the body and a lower flange of a solar panel module frame

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 3

coil springs, leaf springs

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 4

coil springs, leaf springs

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentUS10451315B2Universal end clamp for mounting solar panels on structural rails
Publication Date: 2019.10.22 UNIRAC INC
  • US10451315B2 patent drawing
  • US10451315B2 patent drawing
  • US10451315B2 patent drawing

AI summary

A universal end clamp and method for clamping a solar module to a rail are configured for applying a torque to a clamp body and generating a compressive clamping force between the body and a lower flange of a solar panel module frame so that the lower flange of the module frame is clamped to the rail. The clamp is disposed underneath the solar module, where it cannot be seen. The components of the assembly that can move include threaded bolts, front and rear T-slides, drive blocks, cams, coil springs, leaf springs, and offset drive brackets.