Convergence belt for solar photovoltaic component and method for assembling solar panel by convergence belts

Abstract

The invention relates to an integrated bus bar of a printed wiring board used for solar photovoltaic modules. The method is that the bus bar is integrated into a whole by a PCB board. The bus bar is characterized in that the bus bar (1) is a long strip PCB board; the left and the right of the center of the bus bar (1) are provided with connection terminals (4) of common output terminals of positive and negative poles of the solar photovoltaic modules; the top layer of the bus bar (1) is provided with a pad (3) connected with the positive and negative poles of the solar photovoltaic module (6); the pad (3) corresponds to an electrode outlet terminal of the solar photovoltaic module (6); the positive or negative pole of the solar photovoltaic module with two series of loop is connected withthe negative or positive pole of the adjacent solar photovoltaic module (6) with two series of loop by an erosive metal strip (15) on the PCB board, so that the common output terminal of a negative pole (8) of the solar photovoltaic module and the common output terminal of a positive pole (7) of the solar photovoltaic module are connected in series by the erosive metal strip (15) on the PCB board. The integrated bus bar can improve the labor productivity during production of modules and reliability and safety of the modules and increase the service life of the cells in the modules.

Description

technical field [0001] The invention relates to a processing part of a solar photovoltaic module, specifically, a solar photovoltaic module confluence strip and a method for assembling a solar panel with the confluence strip. Background technique [0002] At present, solar photovoltaic modules are connected in series by solar single cells through welding strips (up to 18 single cells), so as to meet the requirements of the specified electrical parameters. The order of their stacking is: tempered glass, EVA, battery Sheet, EVA, back sheet, and then packaged by vacuum lamination to form a solar photovoltaic module for customers----photovoltaic power supply. The connection of battery strings is realized through confluence tapes. These tapes are very thin, very soft, and have very poor rigidity. When vacuuming during welding and vacuum lamination, the battery strings in the assembly are often displaced and overlapped, resulting in vacuum lamination. The rear components cannot m...

AI Technical Summary

Problems solved by technology

[0004] 1) There are many solder joints and a large number of connections in the bus strip, which reduces the reliability of the components

[0005] 2) When stacking, there are many processes and poor controllability, resulting in low labor efficiency

[0006] 3) The bypass protection technology of the module is to arrange diodes in the junction box. Since the diode is a power element, it cannot dissipate heat effectively, causing hot spots on the battery sheet and causing damage, reducing the service life of the module

[0007] 4) Bubbles are prone to appear at the outlet of the confluence belt during lamination, causing the components to be scrapped

[0008] 5) The battery string is very easy to shift during the lamination process

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