Will seriously affect the photovoltaic power generation system of power quality and longevity

V components as core components in photovoltaic system, the pros and cons of its quality will seriously affect the output of photovoltaic system and life. Matching only choose the right raw materials, raw materials, packaging technology is good, to make the crystal silicon piece of security and stability, and protect the

as the core component in a photovoltaic system, voltage components will seriously affect the quality of the photovoltaic power generation and life. Only correct choice of raw materials, good matching of raw materials and good encapsulation process, to guarantee the safety and stability of crystalline silicon cells, and photovoltaic modules performance of long-term power generation. Glass is located in the outer layer of photovoltaic modules positive receive sunlight directly in the outdoor environment, isolation of moisture, impurities, etc. Photovoltaic components commonly used in glass coating of toughened glass. Toughened glass is glass heated to close to the melting temperature, usually in the 600 - A viscous flow state under 650 ℃, keep the temperature for a period of time, and then rapidly cooling after quenching, cause inside glass, especially glass surface produces a lot of tensile stress. Tensile stress exists in the glass. When the glass is broken, it can maintain the integrity of the glass and not burst. In general, toughened glass is hard to broken by external force. However, due to the principle of tensile stress, toughened glass when in contact with severe physical impact the corner or easy to break. In the process of the production and use should pay special attention to this. The structure of the photovoltaic modules back consists of two sides of the base material layer and function. Photovoltaic component backplane excellent physical properties, aging resistance and 0 + gas and water insulation. Make insulation module as a whole has good physical and mechanical strength, internal structure is not influenced by external harmful factors in the long run. To provide protection and support for the solar cell components. In addition, due to the requirement of processing technology, the back should be in the process of laminated with EVA adhesive, silica gel and junction box adhesive at the same time, two layers of EVA should be completely melted. Photovoltaic battery packaging film ( EVA) Is a kind of thermosetting adhesive film for laminated glass ( EVA is short for ethylene vinyl acetate) 。 EVA film adhesion, durability, and optical properties due to its advantages, more and more widely used in the current components and various kinds of optical products. Through the solar photovoltaic power generation cured ethylene - Vinyl acetate copolymer can afford to climate change, and elastic. And buffer it 'cover' crystalline silicon wafer groups, group a silicon chip encapsulation, and combined with upper glass protection materials and lower protection materials. EVA is a kind of hot melt adhesive, not sticky, not glued under normal temperature, the operation is simple. Melt adhesive in certain conditions after hot pressing, and crosslinking curing, now almost completely transparent. And glass glue, can improve the light transmittance of glass, have the effect of increased light transmittance. EVA test content: appearance inspection, thickness, light transmittance inspection and crosslinking degree. Among them, the crosslinking degree detection data will directly reflect the reliability of the component encapsulation. EVA: the development trend of localization, low-priced, high yield, diversified, etc. Photovoltaic component framework can have the effect of fixed and seal the solar cell components, enhance the strength of component, prolong service life, easy to transport and install. Are usually made of aluminum. Lu border of surface oxidation treatment, process including anodic oxidation, electrophoresis, powder coating, poly (vinylidene fluoride, sandblasting, etc. Test framework include: tensile strength, ductility, corrosion resistance to salt fog corrosion, ammonia, bending, etc. Boundary including plastic boundary of the trend of future development, it has the advantages of lighter weight. Special-shaped frame has the advantage that the personalization and adaptation to various installation conditions.