▎ 摘　　要

NOVELTY - The utility model claims a control device of engine, comprising an engine controller, a protective shell and a limiting component, two sides of the protective shell are symmetrically provided with an air inlet, the other two sides of the protective shell are symmetrically provided with an air outlet, the inner wall of the protective shell is annularly provided with multiple groups of ventilation grooves, the outer wall of the protective shell is symmetrically provided with a box body, and the box body is located at one side of the air inlet, the box body is provided with a through hole, the through hole is provided with a supporting frame, the supporting frame is provided with a fan. The utility model improves the radiating efficiency of the control device of the engine by mounting a fan and graphene radiating fin, when the internal temperature of the control device of the engine is too high, the engine controller supplies power to the fan, the fan rotates to make the external air and the engine controller contact the heat around the outer wall of the engine controller is discharged through the air outlet, the radiating graphene can accelerate the radiating speed of the heat at the bottom of the engine controller, so as to improve the radiating efficiency of the control device of the engine.