High voltage distribution box control circuit of hydrogen fuel cell system

The invention discloses a high voltage distribution box control circuit of a hydrogen fuel cell system. The high voltage distribution box control circuit comprises a fuel cell control module, an insulation detecting module, a high voltage branch module, a power cell interface circuit, an FCS-DCH output interface circuit, an FCS-DCH input interface circuit, an FC output interface circuit, a pre-charge circuit 1, a pre-charge circuit 2, a power diode 1 and a power diode 2, the power cell interface circuit is connected with a whole vehicle in an abutting mode, the FCS-DCH output interface circuitis a fuel cell system voltage increasing DCDC high voltage output interface, the circuit is connected with the power cell interface circuit in parallel, and the FC output interface circuit is an electricity energy output interface generated after chemical reaction of the fuel cell. According to the high voltage distribution box control circuit of the hydrogen fuel cell system, a fuse protector, acontactor, the insulation