Photovoltaic module encapsulation system and photovoltaic module encapsulation method

Abstract

The object of the present invention is to solve the disadvantages of bubbles and warpage at the edge of the battery module when using the prior art photovoltaic module packaging method and packaging equipment to package the photovoltaic module with the same material for the upper cover and the lower cover, and to provide a A photovoltaic module encapsulation system and a photovoltaic module encapsulation method. The photovoltaic module encapsulation method includes a vacuum heating and pressurizing step, a pressurizing and curing step, and a pressurizing and cooling step. In the vacuum heating and pressurizing step and the pressurizing and curing step, flexible application is adopted. The pressing part is pressurized. In the pressurized curing step, after the cavity is closed, it is heated to the curing temperature of the adhesive material, and then the upper cavity is filled with compressed gas, so that the flexible pressure applying part is pressed against the upper surface of the photovoltaic module to exert pressure on the photovoltaic module. solidification; in the pressurized cooling step, the upper cooling plate and the lower cooling plate are used to pressurize and cool the photovoltaic module, and the packaging method and packaging system of the present invention can effectively reduce or prevent cavities and warping deformation at the edge.

Description

technical field [0001] The invention relates to photovoltaic module packaging equipment and a photovoltaic module packaging method. Background technique [0002] When making solar photovoltaic cells, it is necessary to package the smallest unit ----- the photovoltaic module. At present, the more conventional packaging method is to first vacuum hot press the photovoltaic module above the melting temperature of the adhesive layer, and then apply it to the adhesive layer. Layer curing temperature for vacuum hot-press curing, correspondingly, the equipment includes two vacuum laminators arranged front and back, each vacuum laminator includes an upper box and a lower box, the upper box and the lower box are closed to form a sealed chamber, There is a flexible pressure member in the sealed chamber. The flexible pressure member divides the sealed chamber of the vacuum laminator into an upper vacuum chamber and a lower vacuum chamber. The upper vacuum chamber is used to communicate ...

AI Technical Summary

Problems solved by technology

However, when this method is used to encapsulate photovoltaic modules with inconsistent upper and lower cover materials such as roof tile components, or to package photovoltaic modules with the same upper and lower cover materials but with a relatively large thickness difference, such as glass curtain wall components, the encapsulated photovoltaic The edge of the module is warped, so that the performance of the photovoltaic module cannot meet the requirements. In addition, there is another problem. The problem is that when the viscosity of the adhesive is relatively high, cavities will be generated on the edge of the photovoltaic module, which will reduce the yield rate of the photovoltaic module. decline

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