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Method for repairing solar cell module

A technology of solar cells and modules, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve problems such as cell fragmentation and affecting power generation, achieve accurate repair, ensure quality and performance, and reduce hidden cracks

Inactive Publication Date: 2013-04-03
HENGSHUI YINGLI NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the module is laminated with EVA, the cells in it may be broken due to human or equipment
Since the whole module is a series structure of cells, broken cells will affect the power generation of the whole module
Therefore, if the laminated module has broken cells, it must be replaced, that is, repaired, before it can be used normally

Method used

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  • Method for repairing solar cell module
  • Method for repairing solar cell module
  • Method for repairing solar cell module

Examples

Experimental program
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Embodiment Construction

[0029] Such as figure 1 and 2 As shown, the solar cell module is formed by bonding glass, battery sheet and back plate together at high temperature through EVA, and bonding a frame around it.

[0030] A method for repairing solar cell components in the present invention mainly involves repairing the laminated components, including the following workflow:

[0031] 1) Remove the component frame. For components that need to be repaired after disassembly, the unframer shall wipe off the silicone on the components.

[0032] 2) Put the reworked components on the reworked heating table, be careful when handling, avoid bumping the components, and clean the foreign matter on the surface of the components, and then close the cover of the reworked heating table.

[0033] 3) Set the process parameters of the rework heating table, the heating time is 120-180s, and the heating temperature is 150-180°C.

[0034] 4) if image 3 As shown, peel off the back panel. After the heating is ove...

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Abstract

The invention discloses a method for repairing a solar cell module, relating the technical field of solar cell modules. The method comprises the following steps of (1) removing a module frame; (2) heating the module by a repair heating stage; (3) uncovering a back plate; (4) testing the module by an electroluminescent tester; (5) removing broken cell pieces; (6) cutting EVA (Ethylene-Vinyl Acetate); (7) replacing the broken cell pieces; (8) repairing glue pits; (9) testing the module by the electroluminescent tester; (10) laminating the repaired module; (11) testing the module by the electroluminescent tester; and (12) framing the tested and qualified module. According to the method, the broken cell pieces can be quickly and accurately repaired, and the quality and the using performance of the solar cell module can be ensured.

Description

technical field [0001] The invention relates to the technical field of solar battery components. Background technique [0002] As we all know, the working principle of solar cells is to use the photoelectric effect: when sunlight shines on the semiconductor p-n junction, new hole-electron pairs are formed. Under the action of the p-n junction electric field, the holes flow from the n region to the p region, and the electrons flow from The p region flows to the n region, and a current is formed after the circuit is turned on. [0003] Solar cell modules are formed by bonding tempered glass, battery strings, and back sheets together at high temperature through EVA. The adhesive film for solar cell module packaging is based on EVA, supplemented with several modifiers, and is hot-rolled into a film-type product by film-forming equipment. This product is heated during the encapsulation process of solar cell components, resulting in a cross-linking reaction, which is a thermoset...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 任军海曹丽
Owner HENGSHUI YINGLI NEW ENERGY
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