Structure Composition Of Solar Panel

- Jul 03, 2017-

     Solar panel is a device that converts solar radiant energy directly or indirectly into electricity by absorbing sunlight, the main material of most solar panels is "silicon", but it is so expensive that it cannot be widely and universally used in large quantities. Compared to ordinary batteries and rechargeable batteries, solar cells belong to a more energy-efficient and environmentally friendly green products.Solar Panel
    Structure: Tempered glass its role is to protect the main power generation (such as battery chip), light transmission of its selection is required, 1. transmittance must be high (generally 91% or more); 2. Stainless treatment. Eva is used to bond fixed tempered glass and power generation body (such as battery chip), the quality of transparent EVA material directly affects the life of the component, the exposure of EVA in the air is easy to aging yellowing, thus affecting the transparency rate of components, in order to affect the quality of components in addition to the quality of EVA itself, component manufacturers of the lamination process impact is very large, such as Eva adhesive not meet the standards, Eva and toughened glass, backplane adhesion strength is not enough, will cause EVA early aging, affecting the component life. The main role of the battery is to generate electricity, the main power generation market is crystalline silicon solar cells, thin film solar cells, both have advantages and disadvantages. Crystalline silicon solar cell, equipment cost is relatively low, but consumption and the cost of the battery is very high, but the photoelectric conversion efficiency is also high, it is suitable to generate electricity in outdoor sunlight; thin-film solar cells, relatively high cost of equipment, but the cost of consumption and battery is very low, but the photoelectric conversion efficiency relative to the crystalline silicon cell chip more than half the point, but the weak light effect is very good, in ordinary light can also generate electricity, such as Eva function as above, main bonding package power generation main body and Backplane Solar Panel
    Solar panel: Back plate, sealing, insulation, waterproof (generally with tpt, TPE and other materials must be anti-aging, most components manufacturers are quality assurance 25, tempered glass, aluminum alloy generally no problem, the key is in with the backplane and silica gel can meet the requirements. Aluminum alloy cover pressure, a certain seal, supporting role. The junction box protects the entire power generation system, plays the function of the current relay station, if the Assembly short-circuit junction box automatically disconnects the short circuit battery string, prevents burns the entire system. The key to the junction box is the selection of diodes, according to the different types of cells in the module, the corresponding diode is not the same. Silicone sealing function, used to seal the assembly and aluminum alloy frame, assembly and junction box. Some companies use double-sided tape, foam to replace silica gel, the domestic common use of silica gel, process simple, convenient, easy to operate, and low cost.Solar Panel