In-vehicle fire extinguisher

An in-vehicle fire extinguishing apparatus configured to perform fire extinguishing by utilizing an air conditioning apparatus that heats or cools a vehicle interior, the in-vehicle fire extinguishing apparatus comprising:

• an incombustible or flame-retardant refrigerant;
• a compressor that compresses the refrigerant in such a manner as to increase a temperature and a pressure of the refrigerant;
• a condenser that causes a high-temperature and high-pressure refrigerant compressed by the compressor to release heat;
• an expansion valve that expands the refrigerant that is caused to release heat by the condenser in such a manner as to reduce the temperature and the pressure of the refrigerant;
• an evaporator that causes a low-temperature and low-pressure refrigerant expanded by the expansion valve to absorb heat;
• a circulation path that causes the refrigerant output from the compressor to enter the compressor through the condenser, the expansion valve, and the evaporator;
• and
• a fire extinguishing section provided in the circulation path between the expansion valve and the compressor, the fire extinguishing section allowing the refrigerant entered from the circulation path to be output to the circulation path under an environment of a temperature below a predetermined temperature equal to or greater than a guaranteed temperature of a device mounted in a vehicle, and emitting the refrigerant entered from the circulation path to an exterior so as to perform fire extinguishing by being melted under an environment of a temperature equal to or greater than the predetermined temperature.