First: tempered glass

Low iron tempered glass (also known as white glass), thickness 3.2 mm, in the spectral response of the solar cell wavelength range (320-1100NM) transmittance of more than 90%, for infrared light greater than 1200NM has a high reflectivity. The glass is also resistant to ultraviolet radiation, and the transmittance does not decrease.

Second: solar cells

Solar cells are the smallest units of photoelectric conversion, usually 125125 or 156156 in size. The operating voltage of solar cells is about 0.5V, and usually cannot be used as a power supply alone. After the solar cell is packaged in series and parallel, it becomes a solar panel, and its power is usually several watts to dozens of watts, one hundred watts to more than two hundred watts, which can be used as a power source alone.

Third: EVA

EVA is a hot melt adhesive, thickness between 0.4 mm -0.6 mm, flat surface, uniform thickness, containing crosslinking agent. At room temperature, it is non-viscous and anti-viscous, and after a certain price adjustment hot pressing, it will melt bonding and cross-linking curing, and become completely transparent. The cured EVA can withstand atmospheric changes and is elastic, it "covers and underpads" the battery, wraps it, and integrates the upper protective material - glass, the lower protective material backplane (TPT, BBF, etc.), using vacuum lamination technology. On the other hand, it can improve the light transmittance of the glass after bonding with the glass, play a role in anti-reflection, and have a gain effect on the output of the solar panel.

Fourth: junction box

The junction box is usually made of ABS, and has anti-aging and anti-ultraviolet radiation agents, which can ensure that the battery banna does not appear aging and cracking in outdoor use for more than 25 years. The terminal is made of high conductivity electrolytic copper coated with nickel, which can ensure the reliability of electrical conduction and electrical connection. The junction box is glued to the back surface with silicone.

Fifth: aluminum alloy frame

The frame is made of hard aluminum alloy, the surface oxide layer thickness is greater than 10 microns, which can ensure the use of outdoor environment for more than 25 years, will not be corroded, and is firm and durable.

No. 6: Back plate

The backplane is the protective material on the back of the panel, usually TPT, BBF, DNP and so on. These protective materials have good resistance to environmental erosion, insulation ability and can be well bonded with EVA.