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A kind of sampling method of eva crosslinking degree of photovoltaic module

A technology of photovoltaic modules and cross-linking degree, which is applied in the direction of sampling device, etc., can solve the problems of affecting the test results and the inability to take into account the cross-linking degree of the upper and lower layers of EVA, etc., and achieve the effect of accurate test results

Active Publication Date: 2020-12-18
普德光伏技术(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through this process, it can be seen that the sampling sample contains aluminum powder and crystalline silicon impurities, which will affect the entire test result, and only the EVA sample on the back of the cell cannot be taken into account. The cross-linking degree of the upper and lower layers of EVA

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  • A kind of sampling method of eva crosslinking degree of photovoltaic module
  • A kind of sampling method of eva crosslinking degree of photovoltaic module

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Embodiment Construction

[0035] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] In order to achieve the purpose of the present invention, in some embodiments of a method for sampling the EVA crosslinking degree of photovoltaic modules, the sampling method includes: using a cutting tool to cut along the edge of the battery sheet, and cutting the gap between the battery sheet and the battery sheet The EVA is pulled up with the backplane, and then the backplane is separated from the EVA.

[0037] Compared with the old sampling method, the method for sampling the EVA crosslinking degree of photovoltaic modules in the present invention is more convenient and fast, and the sample has no impurities, and the test result is more accurate, closer to the actual crosslinking degree value, and more considerate of the two layers of EVA on the upper and lower sides of the cell. Cross-linking index.

[0038] In order to further ...

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Abstract

The invention discloses a sampling method of the degree of crosslinking of EVA (ethylene-vinyl acetate) of a photovoltaic module. The sampling method comprises the following steps: cutting along the edges of battery pieces by a cutting tool, pulling up the EVA between battery pieces and a back plate, and separating the back plate from the EVA. Compared with the former sampling manner, the samplingmethod disclosed by the invention is more convenient and more efficient, no impurity exists in a sample, and a testing result is more accurate.

Description

technical field [0001] The invention relates to a method for sampling the crosslinking degree of EVA of a photovoltaic module. Background technique [0002] With the continuous development of the photovoltaic new energy field, various supporting equipment in the industry are also constantly innovating and updating. In the production of crystalline silicon photovoltaic modules, it is an essential step to detect the crosslinking degree of photovoltaic module packaging materials; module production is carried out on the basis of qualified crosslinking degrees of photovoltaic module packaging materials, so ensure that The accuracy of the cross-linking degree experiment of component packaging materials is very important. [0003] The existing sampling method of photovoltaic module EVA is to take two cells in the middle of the photovoltaic module, cut along the edge of the cell and the two sides of the welding ribbon with a knife, and pull the EVA on the back of the cell together ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/04
CPCG01N1/04
Inventor 陈沁张飞飞许根俊
Owner 普德光伏技术(苏州)有限公司