Heat dissipation structure and PCB convenient for heat dissipation

The utility model relates to a heat radiation structure and a PCB board convenient for heat radiation. The heat radiation structure comprises a fan housing, the surface of the fan housing is provided with a fixed shaft, one side of the fixed shaft is rotatably connected with a rotating rod, one side of the fan housing is in lap joint with a fan filter plate, and one end of the rotating rod passes through the fan filter plate; the first cleaning block is slidably connected to the surface of the fan filter plate, a traction rope is arranged at the bottom end of the first cleaning block, and one end of the traction rope is fixed to the surface of the rotating rod; the cleaning device has the beneficial effects that a rotating plate drives a rotating rod to rotate, one end of a pulling rope is driven to be wound on the outer side of the rotating rod in the rotating process of the rotating rod, and therefore the pulling rope can be driven to pull a first cleaning block, the first cleaning block moves along the sur