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A method for optimizing the connection of interconnection strips for photovoltaic modules

A photovoltaic module and connection method technology, which is applied to electrical components, welding equipment, semiconductor devices, etc., can solve the problems of increased layout, cost waste, and reduced production efficiency, and achieves simplified operation, improved production efficiency, and reduced production costs. Effect

Inactive Publication Date: 2016-02-24
CEEG SHANGHAI SOLAR SCI & TECH
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  • Abstract
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Problems solved by technology

[0002] At present, many photovoltaic module companies use interconnection strips for the connection between battery pieces and battery pieces at the beginning and end of battery strings in the process of welding battery pieces. It caused a lot of waste in cost, and also added an operation step to the board arrangement, resulting in a decrease in production efficiency

Method used

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  • A method for optimizing the connection of interconnection strips for photovoltaic modules

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Embodiment

[0015] A method for optimizing the connection of interconnection strips for photovoltaic modules. The method adds two short interconnection strips 1 for the connection between the head and the tail of the battery string, and specifically includes the following steps:

[0016] (1) When welding a single battery piece 2, according to the number of battery strings, use a shorter interconnection bar 1 to weld on the first battery piece;

[0017] (2) The rest of the cells are welded sequentially with interconnection strips of conventional length, and the short interconnection strip 1 is welded on the back of the last cell;

[0018] (3) During the lamination operation, the interconnection strips at both ends of the battery string that exceed the cells are welded to the bus bar and cut to obtain a connected photovoltaic module. When the interconnection strip exceeds the edge of the bus bar by 1-2mm, it will It needs to be cropped and can be used directly.

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Abstract

The invention relates to an optimized interconnected strip connection method used for a photovoltaic assembly. In the method, two relatively short interconnected strips are added for connection of head ends and tail ends of battery strings. When a single piece of battery piece is welded, a short interconnected strip is welded on a first piece of battery piece according to number of the battery strings. The remaining battery pieces are welded in order with interconnected strips with normal lengths. Another short interconnected strip is welded on a back face of a last battery piece. When in a lamination operation, parts of the interconnected strips at two ends of the battery strings, which extend out of the battery pieces, are welded together with bus bars and then cut so that a well-connected photovoltaic assembly is obtained. Compared with the prior art, the optimized interconnected strip connection method used for the photovoltaic assembly has the advantages of simplified operation, improved production efficiency and saved production cost.

Description

technical field [0001] The invention relates to a method for connecting photovoltaic modules, in particular to a method for optimizing the connection of interconnection strips for photovoltaic modules. Background technique [0002] At present, many photovoltaic module companies use the interconnection strips used to connect the battery slices to the battery slices at the beginning and end of the battery string during the welding process of the battery slices. It causes a large waste in cost, and also adds an operation step to the board arrangement, resulting in a reduction in production efficiency. Contents of the invention [0003] The object of the present invention is to provide an optimized connection method for interconnecting strips for photovoltaic modules that simplifies operations, improves production efficiency, and saves production costs in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18B23K31/02
CPCY02P70/50
Inventor 肖秀琴翟宁升刘正训
Owner CEEG SHANGHAI SOLAR SCI & TECH
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