Ventilation device

The utility model provides a ventilation device, and relates to the technical field of electrical equipment, and the ventilation device comprises a frame body which is in a hollow box shape and is provided with a frame body side surface, a frame body bottom surface and a frame body top surface, and the frame body side surface, the frame body bottom surface and the frame body top surface jointly form an external contour; the air inlet and the air outlet are formed in the two opposite frame body side faces of the frame body respectively; a junction box; the frame body further comprises a junction box installation portion, the junction box installation portion is arranged on the bottom face of the frame body and forms a containing portion which is recessed from the bottom face of the frame body to the interior of the frame body, and the junction box is arranged outside the frame body and installed in the containing portion. According to the air interchanger, the junction box can be prevented from dewing, the cos