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A kind of ibc photovoltaic battery module string assembly process

A photovoltaic cell and component technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of low production efficiency and low degree of automation, and achieve the effect of improving production efficiency and optimizing production processes

Active Publication Date: 2021-10-08
锦州阳光能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a stringing process of IBC photovoltaic battery components, which is used to solve the problem that the current welding method of bus bars is manual welding, and electric soldering iron is usually used for manual welding, which leads to low production efficiency and low degree of automation

Method used

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  • A kind of ibc photovoltaic battery module string assembly process
  • A kind of ibc photovoltaic battery module string assembly process
  • A kind of ibc photovoltaic battery module string assembly process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiments of the present invention provide a stringing process of IBC photovoltaic cell components, such as Figure 1-4 shown, including the following steps:

[0080] Step 1: Take a number of battery sheets 1, use the first copper foil strips 2 to connect several battery sheets 1 in series, and arrange a second copper foil strip 3 at the end of the battery sheets 1 to form a battery string;

[0081] Step 2: Arranging several battery strings side by side, and the second copper foil strips 3 of several battery strings are located on the same side;

[0082] Step 3: Laying a bus bar 4 on the upper surface of the second copper foil strip 3, the bus bar 4 splicing together several second copper foil strips 3 in series;

[0083] Step 4: Set laying layers on the battery strings according to the preset laying sequence;

[0084] Step 5: put the battery string with the laying layer into the laminator 5 for lamination to form a battery assembly.

[0085]The working principle a...

Embodiment 2

[0087] On the basis of the above-mentioned embodiment 1, in the step 1, two adjacent battery pieces 1 are connected through the first copper foil strip 2, and one end of the first copper foil strip 2 is connected to the The busbar on the front of the battery sheet 1 is connected, and the other end of the first copper foil strip 2 is connected to the negative electrode on the back of the adjacent battery sheet 1 .

[0088] The working principle and beneficial effects of the above technical solution are as follows: in step 1, a plurality of first copper foil strips 2 are used to connect multiple battery sheets 1 in series, and one end of the first copper foil strip 2 is connected to the main body on the front of the battery sheet 1. The grid wire is connected, and the other end is connected to the negative electrode on the back of the adjacent battery sheet 1, thereby realizing the connection between multiple battery sheets 1, thereby forming a battery string, using the first cop...

Embodiment 3

[0090] On the basis of the embodiment 1 or 2, in the step 3, the surface of the bus bar 4 is coated with tin-bismuth-silver.

[0091] The working principle and beneficial effects of the above technical scheme are: the surface of the bus bar 4 is provided with a tin-bismuth-silver coating, the tin-bismuth-silver coating has a melting point of 180 degrees Celsius, and the tin-bismuth-silver coating is a medium-temperature coating, which helps the bus bar 4 and the second The connection of the two copper foil strips 3 improves the qualification rate of the product.

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Abstract

The invention provides a stringing process of IBC photovoltaic battery modules, which includes the following steps: taking several battery slices, using first copper foil strips to connect several of the battery slices in series, and setting a second copper foil at the end of the battery slices strips to form battery strings; several battery strings are arranged side by side, and the second copper foil strips of several battery strings are located on the same side; bus bars are laid on the upper surface of the second copper foil strips, and the bus bars connecting several second copper foil strips in series; providing laying layers on the battery strings according to a preset laying sequence; putting the battery strings with the laying layers into a laminator for lamination to form a battery assembly. In the present invention, the bus bar can be melted through the lamination temperature of the laminator, so that the bus bar connects the second copper foil strips in series, realizing the series connection and splicing of the battery components, and canceling the use in the traditional production process The electric soldering iron welds the bus bar and the second copper foil bar, which improves the production efficiency.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cell assembly manufacturing, in particular to an IBC photovoltaic cell assembly string assembly process. Background technique [0002] Photovoltaic cell module is a key component of distributed photovoltaic system, which bears the heavy responsibility of converting light energy into electric energy. Photovoltaic cell module is composed of single cells packaged in series, and high voltage can be obtained through series connection. Connect in parallel for high current. [0003] In the process of manufacturing IBC photovoltaic cell modules, the interconnection strips are first set on the cells, and then the interconnection strips and the bus bars are welded together by welding. At present, the way of welding the bus bars is manual welding, and an electric soldering iron is usually used for manual welding. For welding, the production efficiency is low and the degree of automation is not high. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/05
CPCH01L31/0504H01L31/1876Y02E10/50Y02P70/50
Inventor 张海苏邱张雷李宝龙齐佳佳
Owner 锦州阳光能源有限公司