▎ 摘　　要

NOVELTY - The utility model claims a low impedance multilayer printed circuit protection board, relating to the technical field of printed circuit protection board, comprising a protection box, the bottom part of the protection box is movably connected with a fixing seat; the top of the fixing seat is provided with multiple mounting holes; the top of the fixing seat is provided with a movable groove; the two sides of the movable groove is provided with a sliding groove; the bottom of the protective box is fixedly connected with a damping bottom plate; two sides of the damping bottom plate are fixedly connected with a sliding block. the low impedance multilayer printed circuit protection plate, a polystyrene coating layer, a graphene radiating layer and a plurality of radiating fins, a plurality of radiating fins are distributed at equal intervals, the circuit board main body itself has good radiating effect, by setting the radiating cylinder, bracket, motor; blade and heat dissipation pore, the steering of the two motors are the same, circulating and ventilating and radiating the inner part of the protective box, the whole set, the multilayer printed circuit protection plate for multi-layer radiating, radiating effect is better, using is more safety