The charging pile grid-connected box is a key piece of equipment in electric vehicle charging facilities, used to safely and efficiently distribute grid power to charging piles while also providing protection, monitoring, and metering functions. It is suitable for public charging stations. This paper first simplifies the target issue of regional power grid through the grid selection method and divides the charging pile area into multiple grids based on the time-load coordinate system to better manage and schedule charging tasks. AC or DC power is output through the power conversion module of EV chargers, including AC and DC EV chargers (integrated and split). The output current of the power grid is three-phase and single-phase. Goode Electric is an enterprise specializing in the production, manufacturing and sales of sheet metal parts such as stainless steel and iron distribution boxes and distribution cabinets Our company has a history of more than 20 years and has accumulated rich experience in the sheet metal industry. This versatile distribution box is specifically engineered for EV charging applications, offering a robust solution for both indoor and outdoor installations. Built with durable, weather-resistant materials, it provides reliable protection for charging pile components while ensuring safe power.