Method for testing moisture resistance of solar photovoltaic component
A technology of solar photovoltaic and solar modules, which is applied in the field of moisture resistance testing, can solve the problems of water permeability deviation, unsuitable for evaluating the moisture resistance performance of photovoltaic modules, and the inability to reasonably evaluate the risk of module operation, etc., to achieve the detection process Simple and accurate test results
Inactive Publication Date: 2014-09-03
EGING PHOTOVOLTAIC TECHNOLOGY CO LTD
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: in the prior art, in the traditional detection method of solar photovoltaic modules, it is necessary to test each packaging material separately in advance, and the actual water permeability of the detection result relative to the laminated packaging material will be different. Large deviation, and this method is not suitable for evaluating the anti-humidity performance of photovoltaic modules, nor can it reasonably evaluate the operation risk of modules in environments with high humidity
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[0022] (1) From bottom to top, solar modules are stacked in sequence in the order of back film, back EVA layer, battery sheet, front EVA layer, and tempered glass layer (with the attached figure 1 Similarly, the plane dimensions of the back EVA layer and the front EVA layer are slightly larger than the tempered glass layer), and at the same time, on the interface between the back film and the back EVA layer, and on the interface between the front EVA layer and the tempered glass layer, there is water The color-changing solid indicator anhydrous CuSO4 is processed in a laminator according to the normal lamination process to obtain a laminate,
[0023] Among them, the solid indicator anhydrous CuSO4 particle size is 20-100um, the solid indicator is mixed in the center of the interface, and it is guaranteed that the solid indicator will not overflow from the interlayer after the lamination process.
[0024] (2) After the laminate obtained in step (1) is cooled, the edge is cut, a...
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The invention belongs to the field of performance detection for a solar photovoltaic component, and particularly relates to a method for testing moisture resistance of a solar photovoltaic component. The method concretely comprises the following steps: mixing solid chemical substances (indicators) capable of changing color in presence of water on an interface between a back film of a solar component and a reverse ethylene vinyl-acetate copolymer (EVA) layer and an interface between a front EVA layer and a toughened glass layer; carrying out group box sealing by matching with a sealant or a sealing tape by adopting an aluminum frame by a laminating technology, so as to obtain the solar component; and putting the obtained solar component into a high-temperature and high-humidity tank or water, keeping for a period of time according to a high-temperature and high-humidity technology, observing whether the indicators in the component change color, and recording the time node of the color change. By adopting the method, the laminated solar component is directly tested, the detection technology is simple and convenient, and the test result is more reasonable than that of a traditional method for testing the permeability performance of the material before being laminated. Therefore, the method can be used as one of items for evaluating the weatherability of the component.
Description
technical field [0001] The invention belongs to the field of performance detection of solar photovoltaic modules, in particular to a method for testing the moisture resistance performance of solar photovoltaic modules. Background technique [0002] Solar energy is both primary energy and renewable energy. It is rich in resources, can be used for free, does not need to be transported, and has no pollution to the environment. It has created a new form of life for human beings and brought human society into an era of energy conservation and pollution reduction. In modern society, people mainly use solar photovoltaic modules to collect solar energy for power generation, so as to meet the needs of daily production and living electricity. [0003] as attached figure 1 As shown, the solar photovoltaic module in the prior art includes: a back film 110 , a back EVA 120 , a battery sheet 130 , a front EVA 140 , and a tempered glass 150 . When the solar photovoltaic module is used ...
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IPC IPC(8): H02S50/10
CPCY02E10/50
Inventor 安全长
Owner EGING PHOTOVOLTAIC TECHNOLOGY CO LTD