Machine-Vision Solar Cell Mounting for Space Panels

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional manufacturing of III-V compound semiconductor multijunction solar cells for space applications is labor-intensive and inefficient, leading to high costs and challenges in interconnecting solar cells to form compact and reliable solar arrays.

Innovation Solution

An automated process using machine vision and automated alignment fixtures for dispensing adhesive and positioning solar cell assemblies on a support, along with automated interconnection methods, to form solar cell panels for space vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual labor is used for assembling and interconnecting solar cells, then flexibility and adaptability in handling complex III-V compound semiconductor multijunction solar cells are improved, but labor intensity increases and manufacturing efficiency decreases

Engineering Contradiction:

Improvehandling flexibilityVSAvoidmanufacturing efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The system uses machine vision to automatically detect and track solar cell positions and alignment features, enabling the assembly system to self-correct and position cells without manual intervention. The automated alignment fixtures and adhesive dispensing work together to achieve precise positioning autonomously

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual mechanical assembly operations are replaced with an automated system combining machine vision, automated alignment fixtures, adhesive dispensing, and heating elements. This substitution eliminates manual labor while maintaining precision through automated control systems

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If automated processes are implemented for solar cell assembly, then manufacturing efficiency and productivity are improved, but system complexity and initial setup requirements increase

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The automated assembly system is designed to handle multiple operations including adhesive dispensing, heating, and alignment within a single integrated platform. The machine vision system serves multiple functions including detection, tracking, and positioning guidance

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system controls assembly parameters such as adhesive dispensing volume, heating temperature and duration, and positioning accuracy through automated adjustment. These parameters can be modified via software control to optimize assembly for different solar cell configurations

Inventive Principle:

Principle #35Parameter changes

3Reliability

If precise alignment and positioning of solar cell assemblies are achieved, then connection reliability and array performance are improved, but assembly time and manufacturing complexity increase

Engineering Contradiction:

Improveconnection reliabilityVSAvoidassembly time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Automated alignment fixtures are used to pre-position solar cell assemblies in correct orientations and locations before adhesive application. Machine vision systems pre-detect alignment features, allowing rapid positioning without time-consuming manual adjustment

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Manual alignment and positioning operations are replaced with automated machine vision-guided positioning systems. The automated system rapidly detects features and adjusts positions through controlled mechanical movement, achieving precision faster than manual methods

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 approach reduces labor costs, increases manufacturing efficiency, and enhances the compactness and reliability of solar arrays by automating the assembly process.

Implementation Method 1

dispensing an adhesive area on a plurality of discrete predefined regions on the top side of the face sheet where a string of solar cell assemblies is to be mounted

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS12408471B2Automated assembly and mounting of solar cells on panels

Publication Date: 2025.09.02 SOLAERO TECHNOLOGIES CORP

AI summary

A method of fabricating a solar cell array module or panel comprising providing a support, providing a face sheet having a top side and an opposite bottom side, mounting the bottom side of the face sheet on the support, dispensing an adhesive on a plurality of discrete predefined regions on the top side of the face sheet where a string of solar cell assemblies is to be mounted using an automated process, positioning and mounting an interconnected string of solar cell assemblies on the adhesive regions on the top side of the face sheet using machine vision, and applying heat or pressure to bond the interconnected string of solar cell assemblies to the adhesive regions on the top side of the face sheet.