Solar battery piece series welding method

A technology of solar cells and ribbons, which is applied in circuits, welding equipment, electrical components, etc., can solve problems such as the peeling off of solder ribbons and battery sheets, the reduction of component power attenuation, and the damage of battery electrodes, so as to reduce the risk of virtual welding Probability, reduced heating efficiency, moderate heating temperature effect

Inactive Publication Date: 2017-06-30
EGING PHOTOVOLTAIC TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When the ribbon is soldered, if the soldering temperature is too low, the flux is too little or the speed is too fast, it will lead to the virtual welding of the ribbon, and the ribbon and the battery sheet will fall off in a short time due to the soldering, which will affect the power attenuation or Failure; if the welding temperature is too high or the welding time is too long, it will lead to over-soldering, which will cause the weld crystal to grow, reduce the strength or crack the battery, and even cause the internal electrodes of the battery to be damaged, directly affecting the power attenuation of the component. Component life or waste

Method used

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  • Solar battery piece series welding method

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Embodiment Construction

[0020] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0021] A method for stringing solar cells of the present invention comprises the following steps:

[0022] Step 1: First place the first solar battery piece 6 on the conveying mechanism 1, then attach one end of the tinned soldering tape 7 to the welding wire position on the upper surface of the first solar battery piece 6, and then tinned and soldered The other end of the strip 7 is stretched backwards, and then the second solar battery sheet 6 is placed on the stretched end of the tinned soldering strip 7, and the position of the tinned soldering strip 7 is attached to the position of the welding wire on the lower surface , continue to place the second tinned soldering strip ...

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Abstract

The invention provides a solar battery piece series welding method. When solar battery pieces and a welding strip are welded, a preheating mode is adopted, the solar battery pieces and the welding strip are heated preliminarily, and thus the heating efficiency of a subsequent welding station is reduced; and vacuum heat insulation and vacuum heat preservation principles are adopted, so that the welding efficiency and welding quality are improved.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a method for stringing solar cells. Background technique [0002] Encapsulation is a key step in the production of solar cells. Without a good encapsulation process, no good battery can produce a good solar panel. The packaging of the battery can not only ensure the life of the battery, but also enhance the resistance of the battery. The high quality and long life of the product is the key to winning customer satisfaction, so the packaging quality of solar panels is very important. [0003] The production and assembly process of solar panels generally includes: cell inspection, cell string welding, welding inspection, laying, lamination, deburring, frame installation, welding junction box, high voltage test, component test, appearance inspection and packaging storage. [0004] Among them, the serial welding of solar cells is generally to connect 6 to 12 solar cells in ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00B23K1/20H01L31/18B23K101/36
CPCB23K1/00B23K1/20B23K2101/36H01L31/18Y02P70/50
Inventor 孙铁囤姚伟忠汤平
Owner EGING PHOTOVOLTAIC TECHNOLOGY CO LTD
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