Firstly, the first step in the production of new energy vehicle PCB boards is the design of circuit board drawings.

The designer draws the layout and circuit connection drawings of the circuit board based on the functional and dimensional requirements of the electronic equipment of the new energy vehicle. The accuracy and rationality of design drawings are crucial for the subsequent manufacturing process.

Next is the plate making and electroplating of the circuit board.

Plate making is the process of transferring design drawings to photoresist through lithography technology, and then gradually exposing the copper layer through chemical corrosion to form the required circuit lines. Next, the copper plate is immersed in an electroplating bath, and through the action of current, a layer of copper foil is formed on the circuit line to enhance conductivity and durability.

The third key step is drilling and deburring.

In this step, the high-speed drilling on the small lathe drills necessary holes for welding and assembling components, while also generating some burrs that need to be removed through chemical agents and mechanical removal to ensure surface smoothness.

The next process is welding and assembly.

Welding uses SMT surface mount technology to accurately solder electronic components to the corresponding positions on the circuit board, and conduct testing and inspection. The assembly process involves combining various components together and conducting necessary fixing and debugging to ensure overall stability and functional integrity.

The final key process is testing and quality inspection.

After welding and assembly, the PCB board of new energy vehicles requires strict testing and quality inspection. Automated testing equipment is usually used to test the electrical and performance of circuit boards to ensure that they meet design requirements and standards. At the same time, visual inspection and functional verification are also required to ensure that each component and connection are functioning properly.