The Structure Of Solar Panels

- Jun 08, 2017 -

The structure of solar panels

1) the role of tempered glass in order to protect the main power generation (such as battery), light selection is required, 1. Transmittance must be high (generally more than 91%); 2. Ultra-white steel treatment

2) EVA used to bond fixed glass and power generation main body (such as battery), transparent EVA material directly affect the quality of the component life, exposure to air in the EVA easy to aging yellow, thus affecting the component's light transmittance , Thus affecting the quality of components in addition to the quality of EVA itself, the components manufacturers of laminated technology is also very large, such as EVA glue degree is not up to standard, EVA and tempered glass, backplane bonding strength is not enough, will cause EVA early Aging, affecting component life.Solar Panel

3) The main role of the battery is the power generation, power generation main market is the mainstream of crystalline silicon solar cells, thin film solar cells, both of their advantages and disadvantages. Crystalline silicon solar cells, the equipment cost is relatively low, but the consumption and the cost of the battery is very high, but the photoelectric conversion efficiency is also high, in the outdoor sun power generation more appropriate; thin film solar cells, the relative cost of equipment, but consumption and battery The cost is very low, but the photoelectric conversion efficiency is more than half of the crystalline silicon cell chip, but the low light effect is very good, in ordinary light can also generate electricity, such as the calculator on the solar cell.Solar Panel

4) EVA role as above, the main bonding package power generation main body and backplane

solar panel

solar panel

5) Backplane, sealed, insulated, waterproof (generally TPT, TPE and other materials must be anti-aging, most of the components manufacturers are guaranteed for 25 years, tempered glass, aluminum alloy is generally no problem, the key in the back and Whether the silica gel meets the requirements.

6) aluminum alloy protective laminates, from a certain seal, support role

7) Junction box to protect the entire power generation system, play the role of the current transfer station, if the component short-circuit junction box automatically disconnect the short-circuit battery string, to prevent the entire system. The most critical of the junction box is the choice of diodes, according to the type of battery within the module is different, the corresponding diode is not the same

8) silicone seal, used to seal the assembly and aluminum alloy frame, components and junction box at the junction. Some companies use double-sided tape, foam instead of silica gel, the domestic use of silica gel, the process is simple, convenient, easy to operate, and the cost is very low.Solar Panel