Photovoltaic string welding machine is an essential equipment in the manufacture of photovoltaic cells, its role is to connect multiple photovoltaic cells in series to form photovoltaic cell assembly, with the advantages of improving cell efficiency and reducing production costs. The turbocharger is an important part of the automobile power system, which feeds into the automobile engine by compressing the air to improve the combustion efficiency, thus achieving the purpose of increasing power and reducing fuel consumption. According to market data, the photovoltaic industry in recent years in the rapid development of photovoltaic module production is self-evidently important. And PV string welder as the core equipment in the production of photovoltaic modules, its market demand is also growing, 2021 China's total sales of photovoltaic string welder more than 1,800 units, is expected to be more than 3,000 units of photovoltaic string welder sales in 2024. In terms of turbocharger market, due to the rapid development of the automotive industry, the turbocharger market has also developed rapidly. According to relevant organizations, the sales of turbochargers in China exceeded 13.74 million units in 2022, and it is expected that the shipments in 2023 will exceed 15 million units.