Test method for snail pattern and pearl chain of photovoltaic modules
A photovoltaic module and testing method technology, which is applied in the field of snail pattern and pearl chain testing, can solve the problems of no further testing, can not replace hidden cracks or other defects of photovoltaic modules, and achieve the effect of optimizing the production process
Active Publication Date: 2019-05-31
CSI SOLAR POWER GROUP CO LTD +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, neither the cracked cells selected before lamination, nor the cracked cells artificially manufactured according to the above method can replace the cracks or other defects that may occur during the actual installation and use of photovoltaic modules; on the other hand, for photovoltaic The snail pattern on the component part may also develop into a pearl chain and no further testing has been done
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, this embodiment does not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to this embodiment are included in the protection scope of the present invention.
[0025] Please refer to figure 1 As shown, the test method of the snail pattern and the string of pearls of the photovoltaic module provided by the present invention comprises the following steps:
[0026] Provide photovoltaic modules, select cells of predetermined specifications and corresponding raw materials for production, including ribbon, EVA, glass, back sheet and outer frame, and then complete welding, lamination, and framing through established manufacturing processes to obtain corresponding photovoltaic modules;
[0027] Referring to the IEC61215 standard document, carry out the load test on the above...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for testing snail trails and pearl chains of photovoltaic modules. The method comprises steps of providing the photovoltaic modules and performing load testing; providing an environmental test box and performing power-on damp heat testing on the photovoltaic modules; performing irradiation testing on the photovoltaic modules; repeating the damp heat testing and the irradiation testing and judging whether the snail trails occur in the photovoltaic modules; performing heating test on the photovoltaic modules with the snail trails at the temperature of 120-150 DEG C. The method better reproduce environmental conditions in the actual mounting and using processes of the photovoltaic modules, occurrence of the snail trails and the pearl chains is accelerated by a laboratory means, then the resistance of the photovoltaic modules with different specifications to the snail trails and the pearl chains is evaluated, raw material performance of the corresponding photovoltaic modules is obtained, and production and processing technologies of the corresponding photovoltaic modules are optimized.
Description
technical field [0001] The invention relates to the technical field of photovoltaic module production, in particular to a method for testing the snail pattern and pearl chain of the photovoltaic module. Background technique [0002] After several months of installation and use of photovoltaic modules, snail patterns will appear on the cells of some photovoltaic modules, with different widths and thicknesses. Parts of the snail pattern will also develop into strands of pearls over time. The phenomenon of snail pattern and pearl chain in the process of using photovoltaic modules has been paid more and more attention in the industry in recent years. In order to reduce the impact of snail pattern and pearl chain on the power generation efficiency of photovoltaic modules, many manufacturers are committed to analyzing and solving the snail pattern and pearl chain question. However, the process of generating snail patterns and pearl chains in photovoltaic modules often takes seve...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/18G01N17/00
CPCG01N3/18G01N17/004
Inventor 曾雪华唐景傅冬华吴中海
Owner CSI SOLAR POWER GROUP CO LTD