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Photovoltaic module production process

A production process and photovoltaic module technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve problems such as ineffective control of air bubbles, achieve the effect of improving photoelectric conversion rate and prolonging service life

Inactive Publication Date: 2016-11-09
ZNSHINE PV TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Save silica gel loss, save manpower, and reduce costs; but this invention cannot effectively control the bubbles generated by photovoltaic modules in the lamination process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The photovoltaic module production process of the present invention comprises the following steps:

[0028] Screening: Perform battery sorting to classify batteries by testing their current and voltage output parameters.

[0029] Welding: Weld the screened cells into solar cell modules. It specifically includes the following steps: single welding: welding the bus bar to the grid line on the front of the cell; The front electrode of the battery slice is welded to the back electrode of the next battery slice, the battery slices are connected in series in sequence, and the lead wires are connected at the positive and negative electrodes of the last battery slice assembly string.

[0030] Lamination: Laminate the cover glass, EVA film, interconnected solar cells, EVA film, and back sheet in sequence, and prepare for lamination.

[0031] Lamination: Put the stacked battery components into the lamination mechanism, vacuum out the air in the components, and then heat to melt...

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Abstract

The invention relates to the technical field of photovoltaic module production, in particular to a photovoltaic module production process. The photovoltaic module production process comprises the following steps of screening, in which batteries and separated and classified by testing current and voltage output parameters of the batteries; welding, in which screened battery pieces are welded to a solar cell module; stacking, in which cover plate glass, an EVA membrane, solar cells which are connected to one another, an EVA membrane and a back plate are stacked together for lamination; laminating; trimming; carrying out EL detection; framing; packaging a junction box; and finally, testing, in which module test and high-voltage test are performed on the packaged battery module. After the adoption of the above process, the phenomenon that air bubbles are generated in an EVA photovoltaic module after lamination in the photovoltaic module production process due to very short extraction time is effectively reduced, the photoelectric conversion rate of the photovoltaic module is improved, and the service lifetime of the photovoltaic module is prolonged.

Description

technical field [0001] The invention relates to the technical field of photovoltaic module production, in particular to a photovoltaic module production process. Background technique [0002] Photovoltaic modules are assembled from solar cells. The assembly line is also called packaging line. Packaging is a key step in the production of solar panels. Advanced battery packaging can not only ensure the life of the battery, but also enhance the resistance of the battery. The high quality and long life of products are the key to win customer satisfaction, so the packaging process of solar panels is very important. [0003] Chinese invention patent application CN 104485387A discloses a manufacturing process of a photovoltaic module, and its process includes: welding process, lamination process, lamination process, framing process, and component wrapping process. The invention has high working efficiency, can effectively reduce debris caused by excessive temperature difference d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/048
CPCH01L31/048H01L31/18Y02E10/50Y02P70/50
Inventor 王桂奋王迎春
Owner ZNSHINE PV TECH
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