Why should solar panels be protected by frames?

The solar frame plays the role of protecting solar modules and facilitating the connection and fixation of solar modules. Because solar panels are mainly composed of monocrystalline silicon or polycrystalline silicon solar cells and tempered glass, they are particularly brittle and easy to break, so they must be protected by a frame outside.

Of course, there has also been a kind of frameless solar panel recently. This kind of solar panel is encapsulated with a spraying technology using modern high technology, but there is a hidden danger of leakage in the edge seal of frameless solar module.

What are the advantages of aluminum frame of solar panel?

At present, the frames of solar panels on the market include stainless steel, aluminum alloy, rubber, reinforced plastic, etc.

The aluminum alloy frame is the most widely used one, because the aluminum alloy frame has the advantages of simple processing technology, light weight, strong corrosion resistance, strong firmness, strong tensile capacity, high metal fatigue value, high elasticity and rigidity.

Even if the surface is scratched, it will not be oxidized and its performance will not be affected. The service life of aluminum alloy frame can reach 30-50 years.

The frame made of rubber and plastic is easily weathered, which generally can not reach the service life of solar panels (25 years).

Stainless steel also has a long service life, oxidation resistance and higher strength than aluminum alloy, but stainless steel is much heavier than aluminum alloy, which is inconvenient to transport, and the process of making stainless steel frame is complex and costly.

Therefore, considering the cost reduction, many enterprises do not use stainless steel and mostly use aluminum alloy as the frame of solar panels.