Explosion-proof high-temperature-resistant PCB

The utility model relates to the technical field of PCBs (printed circuit boards), in particular to an explosion-proof high-temperature-resistant PCB, which aims at solving the problems proposed in the background technology and adopts the following scheme that the explosion-proof high-temperature-resistant PCB comprises a circuit board body, a heat dissipation plate is arranged at the bottom of the circuit board body, heat dissipation fins are arranged in the heat dissipation plate, and a protection frame is arranged outside the circuit board body. The radiating fins are inserted into the radiating grooves of the radiating plate, when the circuit board body is placed in the placing groove, the bottom of the circuit board body is in contact with the top of the radiating plate, heat is led out from the bottom of the circuit board body through the radiating plate and the radiating fins, and radiating efficiency of the circuit board body is improved. And when the circuit board body is placed in the placement groo