Cooling and heating system for hydrogen fuel vehicles

A cooling and heating system of a hydrogen fuel vehicle using a fuel cell configured to generate electricity with hydrogen and oxygen supplied thereto as a power supply source, the cooling and heating system comprising:

• a first heat exchanger configured to perform heat exchange with liquefied hydrogen supplied from a liquefied hydrogen tank;
• a second heat exchanger configured to perform heat exchange with the fluid heat-exchanged with the first heat exchanger in order to form gaseous hydrogen and to perform heat exchange with a coolant discharged after cooling the fuel cell and then supplied along a first path;
• the fuel cell configured to generate electricity with the gaseous hydrogen, formed as a result of heat exchange performed by the second heat exchanger, and oxygen supplied thereto;
• a third heat exchanger configured to perform heat exchange with a coolant discharged after cooling the fuel cell and then supplied along a second path;
• a first radiator having the first heat exchanger disposed therein, the first radiator being configured to supply cool air in the fluid passing through the first heat exchanger into the vehicle;
• and a second radiator having the third heat exchanger disposed therein, the second radiator being configured to supply hot air in the fluid passing through the third heat exchanger into the vehicle, wherein
• the second heat exchanger is constantly operated, and
• the first radiator and the second radiator are selectively operated under control of a controller,
• wherein, in a case in which the first radiator is not operated, the first heat exchanger is provided as a path along which the liquefied hydrogen passes, whereby the liquefied hydrogen is supplied to the second heat exchanger.