ASSISTANCE DEVICE OF DAMPER AND VENTILATOR WITH THE SAME

摘要

The present invention relates to a damper assisting device and a ventilator including the same, capable of pushing a damper panel up higher by simply installing an assisting device, and therefore, increasing an opening area of an air outlet when a damper is opened by a ventilator turned on. According to the present invention, the ventilator includes: a body including an air inlet; an impeller; an air outlet installed in a side of the body; a damper panel opening and closing the inside of the air outlet; and a damper assisting device changing the speed of a fluid flowing to the air outlet by the impeller. The damper assisting device includes a wind speed accelerator which comprises: an air inlet taking at least part of the fluid flowing to the air outlet by the impeller; a path for the flow of the fluid flowing in through the air inlet; a taper part of which an internal diameter or cross-sectional area is tapered along the flow of the fluid; and an air outlet discharging the fluid taken into the air inlet to pass via the taper part. The wind speed accelerator is installed in the rear of the damper panel, and the air outlet is formed to face the rear surface of the damper panel.