Solar Tracker Clamp Assembly for Balanced Center-of-Mass Rotation

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Solution Overview

Problem

Conventional solar tracking systems are inadequate in maximizing energy conversion from solar panels due to suboptimal sun angle alignment, limiting their potential energy output.

Innovation Solution

A fully adjustable solar tracker apparatus with a center of mass aligned with the center of rotation of cylindrical torque tubes, reducing the load on the drive motor and allowing for independent movement of each solar panel to optimize sun angle alignment, featuring a clam shell clamp assembly and swage fittings for strong axial and torsional loading, and an elastomeric damper to prevent harmonic waveforms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional solar tracking mechanisms are used, then solar panels can be mounted on support structures, but the sun angle alignment is suboptimal limiting energy output

Engineering Contradiction:
Improveenergy conversion efficiencyVSAvoidsun angle alignment capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The solar tracking system employs dynamic adjustment mechanisms that allow the solar panels to change their orientation angles independently. The first and second support structures can be adjusted to different angles relative to the ground, enabling the system to dynamically track the sun's movement throughout the day and across different seasons, thereby maximizing energy conversion efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tracking system is divided into segmented, independently adjustable components. Each support structure (first and second) can be adjusted separately to optimal angles, allowing fine-tuned positioning of solar panels at various locations along the torque tube. This segmentation enables precise sun angle alignment for each panel based on its specific orientation and location.

Inventive Principle:
Principle #1Segmentation

2Productivity

If fully adjustable tracking system is implemented, then precise sun angle alignment is achieved, but device complexity increases

Engineering Contradiction:
Improveenergy conversion efficiencyVSAvoidadjustable mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses dynamic but straightforward adjustment mechanisms where support structures can be positioned at different angles. The adjustability is implemented through mechanical means that allow independent angle adjustment without requiring complex control systems, maintaining relative simplicity while achieving precise sun tracking capability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Each component of the tracking system is designed with local adjustability specific to its function and position. The first and second support structures have independent adjustment capabilities tailored to their specific orientation requirements, allowing precise local optimization without requiring complex global control mechanisms.

Inventive Principle:
Principle #3Local quality

3Use of energy by moving object

If center of mass is aligned with center of rotation, then drive motor load is reduced, but manufacturing precision requirements increase

Engineering Contradiction:
Improvedrive motor loadVSAvoidcenter of mass alignment precision
Core Design Contradiction:
Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

The system achieves equipotential balance by aligning the center of mass of the solar panel assembly with the center of rotation of the torque tube. This balancing reduces the gravitational load on the drive motor, allowing it to operate with minimal energy consumption during tracking movements. The alignment creates a neutral gravitational position that minimizes the motor's workload.

Inventive Principle:
Principle #12Equipotentiality

Solution Approach 2:

The design incorporates adjustable parameters in the support structures and mounting mechanisms that allow for fine-tuning of the center of mass position. By adjusting these parameters during installation, the system can achieve precise center of mass alignment with the rotation center, optimizing motor load reduction while accommodating normal manufacturing tolerances.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If independent movement of each solar panel is allowed, then sun angle alignment is optimized, but device complexity increases

Engineering Contradiction:
Improveenergy conversion efficiencyVSAvoidindependent adjustment mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The tracking system is segmented into independently adjustable support structures for each solar panel or panel group. Each support structure can be adjusted to its own optimal angle, allowing independent sun tracking optimization without requiring a complex centralized control system. This modular segmentation achieves high productivity with relatively simple, distributed adjustment mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each support structure and solar panel assembly is designed with local adjustability specific to its position and orientation requirements. The independent movement capability is implemented through localized adjustment mechanisms at each mounting point, allowing precise sun angle alignment for each panel while maintaining overall system simplicity through distributed, independent control.

Inventive Principle:
Principle #3Local quality

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

Enhances energy conversion efficiency by allowing precise alignment with solar radiation, reducing installation costs and errors, and providing a robust and efficient tracking system capable of withstanding environmental movements.

Implementation Method 1

an elastomeric damper to prevent harmonic waveforms

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentUS10928100B2Balanced solar tracker clamp
Publication Date: 2021.02.23 NEXTPOWER LLC
  • US10928100B2 patent drawing
  • US10928100B2 patent drawing
  • US10928100B2 patent drawing

AI summary

A solar tracker including a torque tube, a drive device connected to one end of the torque tube, a frame assembly coupled to the torque tube, the frame assembly arranged perpendicular to the axis of the torque tube and supporting a plurality of solar modules. The solar tracker further includes a clamp assembly having a housing coupled to the torque tube where the torque tube is coupled to the housing, the housing having an opening with a major plane normal to a length of the torque tube, the opening having an inner region that acts as a stop for the torque tube when moved in a first direction, and as a stop for the torque tube when moved in a second direction and the drive device is operable to move the torque tube about a center of rotation from a first position to a second position.