Lightweight double-glass module

Abstract

The invention belongs to the field of solar cells, and provides a lightweight double-glass module comprising chemically toughened glass, a packaging layer, cell strings, a packaging layer and physically toughened glass which are arranged from the top to the bottom in turn. According to the lightweight double-glass module, chemically toughened glass acts as front glass and cell sheets crack if chemically toughened glass is used for supporting due to excessive flexibility of chemically toughened glass, and physically toughened glass acts as back glass and float physically toughened glass acts as a main bearing surface under the condition of wind-snow load so that the cell strings in module can be greatly protected, and the overall strength of the module can be increased through the collocation; besides, the installing method is almost the same with that of common double-glass modules so that the installing method does not need to be changed; and thinner glass is adopted on the basis of a backboard module and the double-glass module, and weight is relatively low and is only about 12KG so that weight is reduced by 40% in comparison with that of conventional double-glass.

Description

technical field [0001] The invention belongs to the field of solar cells, in particular to a lightweight double-glass module. Background technique [0002] Most of the existing photovoltaic modules use backplane + physical tempered glass or 2.5mm physical tempered glass + 2.5mm physical tempered glass and 2.0mm physical tempered glass + 2.0mm physical tempered glass. Compared with traditional components of the same type, there are defects such as high water vapor transmission rate, weak mechanical strength, and weak aging performance. Compared with double-glass components, double-glass components replace the traditional backplane with backplane glass on the basis of backplane components, solving the problem of It eliminates the problems of backplane components, but far exceeds the traditional backplane components in terms of weight. [0003] Defects and deficiencies of the prior art: [0004] 1. The existing backplane + glass traditional module, because the backplane has t...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing backplane + glass traditional module, because the backplane has the risk of water vapor penetration, it will damage the sealing material and battery sheet in the module, reduce the power generation efficiency and life of the module; and the strength of the traditional module is weak, it needs to be increased The frame is used to withstand the wind and snow load, which virtually increases the development cost and causes the PID phenomenon of the module; in production, the finished backplane of the backplane module is prone to appearance defects such as bulges;

[0005] 2. The existing double-glass modules are heavy because they are matched with thicker glass, which brings considerable inconvenience to the installation of modules on various terrains; and after the thickness of the glass is increased, the overall layer of the module The pressing time will become longer, affecting the overall production capacity

Images