Passive fire extinguishing system of fan cabin

The utility model relates to the technical field of fan cabin safety equipment, in particular to a passive fire extinguishing system for a fan cabin, and aims to solve the technical problem that the existing fire extinguishing mode is lack of functions in the aspects of precise adaptation, flexible control and intellectualization. The induction identification units are uniformly distributed in thefan cabin and are used for identifying the temperature or the smoke concentration in the fan cabin; the fire alarm controller is in signal transmission connection with the induction identification unit and is used for receiving a temperature signal or a smoke concentration signal generated by the induction identification unit; the driving control assembly is in signal transmission connection withthe fire alarm controller and is used for receiving the temperature signal or the smoke concentration signal to drive a first fire extinguishing device; the multiple first fire extinguishing devicesare evenly distributed and