In the solar photovoltaic power generation system, in order to reduce the connection between the solar photovoltaic cell array and the inverter, the combiner box is used. Combined with years of experience in lightning protection system design, a variety of open-sign combiner boxes have been developed. The user can connect a certain number of photovoltaic cells with the same specifications in series to form a photovoltaic array, and then connect several photovoltaic arrays in parallel to the photovoltaic convergent lightning protection box. After converging in the photovoltaic lightning protection combiner box, through the controller, DC power distribution cabinet, photovoltaic inverter, AC power distribution cabinet,
 It can be used in a complete set to form a complete photovoltaic power generation system, which can be connected to the grid. In order to improve the reliability and practicability of the system, special photovoltaic DC lightning protection modules, DC fuses and circuit breakers are equipped in the photovoltaic lightning protection combiner box, which is convenient for users to grasp the working conditions of photovoltaic cells in a timely and accurate manner to ensure solar photovoltaic power generation. The system is at its best.