Fuel cell phase change cooling system with insulation function

The invention discloses a fuel cell phase change cooling system with an insulation function, and relates to the technical field of fuel cell systems, the fuel cell phase change cooling system comprises an electric pile system, an electric pile cooling cavity is arranged in the electric pile system, and the electric pile cooling cavity is filled with insulation cooling liquid to completely isolate the electric pile cooling cavity from external parts of the electric pile system. A phase change heat exchanger is arranged outside the electric pile cooling cavity, and insulating cooling liquid in the electric pile cooling cavity enters the phase change heat exchanger after passing through a gaseous pipeline. The fuel cell cooling system is divided into an internal phase change circulation system and an external sensible heat circulation system, and is simple in structure and clear in logic; an internal phase change circulation system adopts insulating cooling liquid to completely separate a galvanic pile from exte