Charging piles are charging stations for electric vehicles. Charging pile is a terminal device for new energy electric vehicles. It can charge various types of electric vehicles according to different voltage levels. It is the basic supporting facility for electric vehicles. The charging pile can display the data of charging time, electricity consumption, consumption amount and charging method, thus improving the use efficiency and practicability of the charging pile. Charging piles are divided into different styles and types. According to the installation method, they are divided into wall-mounted charging piles and floor-mounted charging piles. According to the installation position, it is divided into public charging piles and special charging piles. According to the charging mode, it is divided into DC charging pile, AC charging pile and AC/DC integrated charging pile. According to the number of charging interfaces, it is divided into one single charge and one multi-charge. According to the speed. Designers need to conduct sufficient market research at the initial stage of design, stimulate their own sense of innovation, and combine the design needs of users to carry out innovative research and development and design from different perspectives such as appearance design, structural design, hand board production, material selection, and color matching. The functions of the column charging pile include management, query, display, code scanning payment, background communication, etc., through the real-time data provided by the vehicle management system (BMS) communication, dynamic adjustment of voltage parameters and current, and integration of power conversion and charging control. Realize the intelligent control of the entire charging process and automatically complete the charging process. The pillar-type charging pile adopts an integrated complete machine structure and adopts line design, giving people a simple and atmospheric feeling; it is made of aluminum alloy, pays attention to detail treatment, and the surface process is exquisite; the protection level meets the national industry standard and can reach IP54. It has the characteristics of corrosion resistance, waterproof, sunscreen, sturdy and durable, adapts to the harsh outdoor environment, and meets the needs of outdoor installation. The design of the pillar charging pile focuses on man-machine processing, the height is set at the m-1.5m of 1.2, the operation interface is located at the top of the body, and the LCD touch screen control adopts a bevel design, which conforms to people's usage habits; dual charging interface output, diversified charging methods, to meet different The charging requirements of vehicles; the front of the charging pile is marked with clear and eye-catching use procedures and precautions, and the operation is simple and easy, it has emergency stop function, overload protection, short circuit protection, leakage protection, lightning protection, overheat protection, insulation protection, battery reverse connection, battery overvoltage, battery failure and other protection functions.