Cabinet for outdoor photovoltaic power generation equipment

A cabinet for outdoor photovoltaic power generation equipment comprises a cabinet body in which a photovoltaic inverter unit is mounted, a top cover plate assembly is arranged on the top of the cabinet body, the cabinet body is provided with a main air intake duct and at least one auxiliary air intake duct, and is also provided with more than one auxiliary air inlet communicating with the auxiliary air intake ducts, one end of the main air intake duct communicates with the outside air or an outside cooling air source, and the other end of the main air intake duct communicates with the cooling air duct of a power unit; one end of each auxiliary air intake duct communicates with the outside air or the outside cooling air source, and the other ends of the auxiliary air intake ducts communicate with the air ducts of corresponding non-power unit elements; the top cover plate assembly comprises a cover shell and two air guide ducts arranged in the cover shell, the inlet end of one of the air guide ducts communicate