THERMAL STRESSES IN BONDED SOLAR CELLS-THE EFFECT OF THE ADHESIVE LAYER

An auto-bonding robot (ABR) that consists of the mechanism of adhesive dispensing and auto-bonding, a pneumatic system and a control system, is presented in this paper. It is designed for the bonding operation of cover-glasses and space solar cells using adhesives. An adhesive dispensing method is proposed to control the thickness and position of the adhesive layer on solar cells and to provide a satisfactory bonding accuracy. The bubble-free bonding process is realized by the leaning mechanism of a pneumatic sucker. Experimental comparison of the manual and automatic bonding methods showed that there are no fragment and air bubbles between the cover-glass and the space solar cell, and no outflow adhesive on the surface by the automatic bonding process in a non-vacuum condition. The novel automatic bonding robot greatly improved the lightweight space solar cells bonding quality and production rate.

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ASYMPTOTIC ANALYSIS OF THE THERMAL STRESSES IN A TWO-LAYER COMPOSITE WITH AN ADHESIVE LAYER

Journal of Thermal Stresses ◽

10.1080/01495738508942229 ◽

1985 ◽

Vol 8 (2) ◽

pp. 183-203 ◽

Cited By ~ 25

Author(s):

Harry E. Williams

Keyword(s):

Asymptotic Analysis ◽

Thermal Stresses ◽

Adhesive Layer ◽

Layer Composite

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The Surface Coating Robot for Space Solar Cell Array Assembly

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.373-374.774 ◽

2008 ◽

Vol 373-374 ◽

pp. 774-777 ◽

Cited By ~ 1

Author(s):

Zhuang Fu ◽

W.X. Yan ◽

Y.Z. Zhao

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Surface Coating ◽

Adhesive Layer ◽

Automatic Process ◽

Cell Array ◽

Cell Arrays ◽

The Relationship ◽

Space Solar Cell

At present, adhesive coating is by far the most widely used technique in the space panel manufacturing. The automatic process level is essential for improving the quality and efficiency of the space solar cell array assembly. In this study, the surface coating model for adhesive dispensing on the space solar cells is obtained, which describes the relationship between the thickness of the adhesive layer on the solar cell, the moving speed of the syringe and the differential pressure. Then the structure of the surface coating robot is presented for the space solar cell arrays assembly. The experimental results have showed that the surface coating robot can greatly improve the efficiency and quality of the space solar cells array assembly. The adhesive no longer outflows and stains the solar cells and the panel. This robot is useful to protect the environment and keep workers away from the poisonous chemicals. Instead of the manual work in space solar cell arrays assembly, the application of the surface coating robot will enhance the development of space industry.

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Thermal Stresses in Adhesively Bonded Joints: Numerical and Analytical Analysis

Engineering Science & Technology ◽

10.37256/est.212021729 ◽

2021 ◽

pp. 83-95

Author(s):

Francesco Marchione

Keyword(s):

Adhesive Joint ◽

Thermal Stresses ◽

Fem Simulation ◽

Adhesive Layer ◽

Fundamental Aspect ◽

Bonded Joints ◽

Adhesively Bonded ◽

Adhesively Bonded Joints ◽

Thermal Compatibility ◽

Good Agreement

The adhesive technique is observing a considerable increase in applications in various fields. Unlike traditional joining methods, this technology allows the stress peaks and the weight of the resulting structure to be reduced. Adhesive joints during their service life not only undergo mechanical but also thermal stresses. The thermal compatibility between the adhesive and the adherents used is a fundamental aspect to consider in the design phase. This paper reports on and analyses the results obtained from a linear Finite Element Method (FEM) simulation for a hybrid adhesive joint, as the thickness and characteristics of the adhesive layer vary. An analytical solution for adhesive free joints is presented according to both beam and plate theories. The analytical and numerical results, in case of no adhesive, are in good agreement with good approximation. The introduction of the adhesive layer allows to obtain higher displacement values than in the adhesive-free configuration. The increase in displacement and therefore in ductility confirms the effectiveness of the adhesive joint for real applications.

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