Outdoor ring main unit top radiating device

The utility model relates to an outdoor ring main unit top radiating device comprising an outdoor ring main unit top consisting a top radiating part and a top blocking part. The top blocking part is arranged above the top radiating part. The top radiating part and the top blocking part are connected by a ventilation shutter which is vertically arranged. The beneficial effect lies in that a simple and efficient structure which can ensure effective water proofing and foreign matter proofing on the outer ring main top, carry out radiating effectively and form a radiating chimney effect is provided. The internal temperature of an outdoor ring main unit can be reduced by 5-10 DEG C, safety and reliability of intelligent electronic components are effectively guaranteed, and the service life of electronic components and electrical elements is improved.