Welding method

A welding method and technology of welding strips, which are applied in the field of solar photovoltaics, can solve the problems of inaccurate welding of welding strips and easy displacement of welding strips, etc.

Active Publication Date: 2019-05-17
TAIZHOU LERRISOLAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a welding method, which aims to solve the problem that the welding strip is prone to displacement during transmission to the welding station, resulting in inaccurate welding of the welding strip

Method used

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Embodiment 1

[0041] refer to figure 1 , shows a flow chart of a welding method in Embodiment 1 of the present invention, which may specifically include the following steps:

[0042] Step 101 , applying glue on the surface of the busbar electrode of the solar cell to form a viscous bonding point; the glue provides an initial adhesion force of a preset viscosity within a preset time.

[0043] In the embodiment of the present invention, the main grid of the solar cell can be multi-bus or single bus, and the multi-bus solar cell can be a solar cell with the number of main grids greater than or equal to 2. In the embodiment of the present invention, This is not specifically limited. For example, the number of busbars of the solar battery sheet may be 3, or the number of busbars of the solar battery sheet may be 6, or the number of busbars of the solar battery sheet may be 20.

[0044] In the embodiment of the present invention, glue can be applied on the surface of the main grid electrode of ...

Embodiment 2

[0088] refer to figure 2 , figure 2 A flow chart of a welding method according to Embodiment 2 of the present invention is shown, which may specifically include the following steps:

[0089] Step 201, if the glue is an adhesive, heating the glue to a first preset temperature threshold to reach a preset viscosity threshold.

[0090] In the embodiment of the present invention, if the glue is an adhesive, the glue or adhesive may be heated to a first preset temperature threshold, so that the glue or adhesive reaches a preset viscosity threshold. Both the first preset temperature threshold and the preset viscosity threshold can be set according to actual needs, which are not specifically limited in this embodiment of the present invention.

[0091] For example, the first preset temperature threshold may be 90-150° C., that is, the glue or adhesive may be heated to 90-150° C., so that the viscosity of the glue or adhesive reaches the preset temperature threshold, for example. ...

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Abstract

The invention provides a welding method and relates to the field of solar photovoltaic technology. The method comprises the steps that glue is applied to the surface of a main gate electrode of a solar cell to form viscous glued fixing points; the glue provides primary viscous force with preset viscosity in preset time; through the viscous glued fixing points, a welding strip is fixed to the surface of the main gate electrode of the solar cell; and through a series welding machine, the welding strip is welded to the surface of the main gate electrode of the solar cell. Since the welding stripis fixed to the surface of the main gate electrode of the solar cell through the viscous glued fixing points, in the process of conveying the welding strip to a welding station, the welding strip cannot generate displacement or is not prone to displacement, and it is convenient to precisely weld the welding strip; and moreover, the glue provides the primary viscous force with the preset viscosityin the preset time, therefore, the welding strip can be quickly bonded firmly, and welding efficiency can be improved.

Description

technical field [0001] The invention relates to the field of solar photovoltaic technology, in particular to a welding method. Background technique [0002] Photovoltaic modules are usually formed by connecting and packaging multiple solar cells in series. A solar cell string is usually formed by welding multiple solar cells with ribbons. [0003] At present, the process of making solar cell strings is roughly as follows: arranging the ribbons on the solar cells according to the predetermined spacing, transferring the solar cells with the ribbons to the welding station, and welding the ribbons to the surface of the solar cells at the main gate electrode. [0004] In the process of studying the welding of the ribbon, the inventor found the following problem: the ribbon is prone to displacement during the process of transferring the ribbon to the welding station, so that there is a large displacement between the ribbon and the main grid electrode, resulting in Can not be ac...

Claims

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Application Information

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IPC IPC(8): H01L31/18B23K37/04
CPCY02P70/50Y02E10/50
Inventor 李华刘继宇郭梦龙童洪波
Owner TAIZHOU LERRISOLAR TECH CO LTD
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