HEAT EXCHANGING SYSTEM OF VENTILATING DEVICE

摘要

A heat exchanging system of a ventilating device includes: a heat exchanging housing communicating with an outdoor air passage (2) and an indoor air passage (4); a rotational shaft (32) rotatably supported at one side of the case (6) of a ventilating device; and a heat exchanging elements (34) mounted at an outer circumferential surface of the rotational shaft (32) at regular intervals, and performing a heat-exchanging operation of outdoor air and indoor air while being rotated by a wind force of outdoor air passing the outdoor air passage (2) and a blow force of indoor air passing the indoor air passage (4). Thus, any additional driving unit is not necessary to rotate the heat exchanging system, so that a fabrication cost can be reduced, the overall size of the ventilating device can be reduced, and a noise and vibration can be reduced.