Solar Panel Assembly Process

Solar Panel Assembly Process

Solar panel assembly process
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Solar panel assembly process


 We all know that solar panels are the core device of solar street lights and a relatively valuable component. Therefore, many criminals now steal the panels of roadside solar street lights and then sell them. This is illegal. If we see it, we should stop it immediately.  That today, solar street lamp manufacturers will come to tell you about the assembly process of solar panels.

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 1. Battery test: Due to the randomness of the production conditions of the battery, the performance of the produced battery is not the same. Therefore, in order to effectively combine the batteries with the same performance or similar performance, the battery should be classified according to its performance parameters;  The battery is sorted by testing the output parameters (current and voltage) of the battery.  In order to improve the utilization rate of solar street light batteries, we can make quality qualified battery components.

 2, front welding: is to weld the busbar to the main grid line of the front (negative) of the battery, the busbar is tinned copper strip, we use the welding machine can weld the strip in the form of multiple points on the main grid  on-line.  The heat source for welding is an infrared lamp (using the thermal effect of infrared rays).  The length of the ribbon is approximately twice the length of the side of the battery.  The extra solder ribbon is attached to the back electrode of the back cell when soldered on the back side

 3, back series: back welding is to connect 36 pieces of batteries together to form a component string, the current process we use is manual, the battery is mainly positioned by a membrane board, there are 36 recesses on the top of the battery  The slot, the size of the slot corresponds to the size of the battery, the position of the slot has been designed, the different specifications of the components use different templates, the operator uses the soldering iron

 And the solder wire solders the front electrode (negative electrode) of the "front battery" to the back electrode (positive electrode) of the "back battery", so that 36 pieces are connected in series and the leads are soldered to the positive and negative electrodes of the component string.

 4. Laminated laying: After the back side is connected in series and passed the inspection, the component string, glass and cut EVA, glass fiber and backing board are laid according to a certain level, ready for lamination.  The glass is pre-coated with a primer to increase the bonding strength between the glass and the EVA.  When laying, ensure the relative position of the battery string and glass and other materials, adjust the distance between the batteries, and lay the foundation for lamination.  (Laying level: from bottom to top: glass, EVA, battery, EVA, fiberglass, backboard).

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