The invention relates to an electrically controlled
hydrogen-spraying pressure regulating device of a fuel
cell system, which is used for controlling air inflow at the
hydrogen side of the fuel
cell system. The electrically controlled
hydrogen-spraying pressure regulating device comprises a fuel
cell stack which is used for performing reaction of a
hydrogen fuel cell to generate
electric energy; a hydrogen side
inlet pressure control component which is connected with a hydrogen inlet
pipe of the fuel cell stack and is used for controlling an
inlet pressure of the hydrogen and
backflow of the hydrogen; a draining component which is connected with a hydrogen drain
pipe of the fuel cell pack and is used for draining
wastewater; and a controller which is respectively connected with the hydrogen side
inlet pressure control component and the hydrogen draining component and is used for controlling the hydrogen side inlet
pressure control component and the hydrogen draining component and regulating the hydrogen inlet side pressure. In comparison with the prior art, the electrically controlled hydrogen-spraying pressure regulating device of the fuel
cell system has the advantages of improving the
working environment of the fuel cell, being safe and reliable, being capable of preventing
backflow, keeping the temperature of the returned hydrogen and the like.