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Production process of vacuum plastic-encapsulated photovoltaic modules

A photovoltaic module and production process technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of affecting the production quality of photovoltaic modules, increasing material waste, and easily damaging cells, reducing the number of lifting and transportation, and eliminating the need for Residual, ensure the effect of normal use

Active Publication Date: 2022-06-07
中国电建集团河北工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since thermoplastic elastomers must be laminated within 24 hours when exposed to air, otherwise they will fail, increasing the risk of material waste
[0005] The third is that the cells are easily damaged during transportation
During the lamination process of photovoltaic modules, photovoltaic modules need to be lifted and transported to the laminator, and problems such as cell fragmentation are likely to occur during transportation, which affects the production quality of photovoltaic modules

Method used

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  • Production process of vacuum plastic-encapsulated photovoltaic modules
  • Production process of vacuum plastic-encapsulated photovoltaic modules
  • Production process of vacuum plastic-encapsulated photovoltaic modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 A kind of vacuum plastic sealing photovoltaic module production process

[0037] like Figure 1 to Figure 2 As shown, this embodiment includes the following steps:

[0038] S1. Lamination to form photovoltaic modules

[0039] A photovoltaic module is formed by stacking the front encapsulating material 1 , the heat-treated thermoplastic elastomer 2 , the battery string 3 , the thermally-treated thermoplastic elastomer 2 , and the back encapsulating material 4 in sequence from top to bottom.

[0040] The front encapsulation material 1 may be tempered glass, the back encapsulation material 4 may be a backplane, and both the front encapsulation material 1 and the back encapsulation material 4 may be tempered glass. Thermoplastic elastomers are selected from commonly used packaging materials for photovoltaic modules, such as EVA, POE, PVB and other materials. The thermoplastic elastomer 2 after heat treatment refers to heating the thermoplastic elastomer to 1...

Embodiment 2～6

[0052] Embodiments 2-6 A production process of vacuum plastic-sealed photovoltaic modules

[0053] The only difference between Examples 2 to 6 and Example 1 is that the parameters in the steps are different. For details, please refer to the following table:

[0054]

[0055]

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Abstract

The invention discloses a production process of a vacuum plastic-encapsulated photovoltaic module, which includes the following steps: S1. Laminating to form a photovoltaic module: stacking front packaging materials, heat-treated thermoplastic elastomers, battery strings, and heat-treated thermoplastic elastomers sequentially from top to bottom , the back side packaging material to form a photovoltaic module; S2. Form a closed space: wrap the side side packaging material on the side of the photovoltaic module to form a closed space inside the photovoltaic module; S3. Vacuumize: through the front side packaging material or the air pump on the back side packaging material to the photovoltaic module The inside of the module is evacuated. The invention is convenient for dismantling and recycling the photovoltaic modules, improving production efficiency and reducing energy consumption. The invention is suitable for use in the production of photovoltaic modules.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic components, in particular to a production process of vacuum plastic-sealed photovoltaic components. Background technique [0002] At present, in the production process of photovoltaic modules, the production process of lamination, lamination and framing is generally used, that is, the backsheet, thermoplastic elastomer (such as EVA, POE, PVB and other materials), battery strings are stacked in sequence. , thermoplastic elastomer, glass, and then use a laminator to heat the thermoplastic elastomer to cause it to melt and then solidify, so that it wraps the internal battery strip and sticks to the backplane and glass to achieve a sealing effect, and During the transportation of the module, it can offset the impact of the deformation on the cells, and play a role in protecting and buffering the cells. Then, a junction box and a frame are placed on the photovoltaic modules after lamination...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/048
CPCH01L31/186H01L31/18H01L31/048Y02E10/50Y02P70/50
Inventor 苗蕾化克张卫国曹云鹏蹇泽安焦健杨燕郑炯刘红伟王会晓王帆王坤任辰龙于洪浩尚琪
Owner 中国电建集团河北工程有限公司
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