Heat exchange type ventilator having bypass and recirculation function

摘要

The present invention provides a heat exchange type ventilator having a bypass and a recirculation function capable of preventing the generation of condensation in the entire area of the ventilator and realizing a recirculation mode of the indoor air, thereby creating a pleasant indoor environment. . In order to achieve this, the present invention is characterized by comprising a first exhaust chamber 10 into which room air flows, a second exhaust chamber 20 through which room air passed through the first exhaust chamber 10 is discharged outdoors, A second air supply chamber 40 for supplying outdoor air passed through the first air supply chamber 30 to the room and a second air supply chamber 40 for supplying air to the second air supply chamber 10 from the first exhaust chamber 10, (50) for exchanging heat between indoor air flowing into the first air supply room (20) and outdoor air flowing from the first air supply room (30) to the second air supply room (40), characterized in that the heat exchange unit A diaphragm 60 is disposed below the first exhaust chamber 10, the second exhaust chamber 20, the first feed chamber 30, the second feed chamber 40, and the total enthalpy heat exchanger 50, The bypass passage 70 is formed in a manner that the indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 without passing through the total enthalpy heat exchanger 50, Second The indoor air introduced into the first exhaust chamber 10 flows to the first air supply chamber 30 side in the recirculation mode for indoor air cleaning and condensation prevention, Thereby providing a recirculation flow path.