VENTILATION SYSTEM FOR PREVENTING A PASSAGE WALL FROM BREAKING DOWN BY A STEEL REINFORCING PLATE INSTALLED IN THE REAR END OF A HEAT EXCHANGER

摘要

PURPOSE: A ventilation system is provided to prevent a passage wall from damaging even by receiving shock by restricting a rear end of a heat exchanger from bumping against the passage wall by a reinforcing plate and holding firmly a support frame and an exchanger guide. CONSTITUTION: A ventilation system is composed of an external air suction port(52) formed at one side of a body case to suck in the external air; an external air supply fan(96) for blowing forcibly the air inserted through the external air suction port into the room; an external air delivery port(82) formed on the other side of the external air suction port to be an outlet for ejecting the air sent from the supply fan; a room air suction port(88) disposed on one side of the body case to be an inlet for sucking in the room air; a room air exhaust fan(80) for blowing the air passing through the room air suction port to the outside; a room air discharge port(56) arranged on one side of the body case to be an outlet for discharging the room air to the outside; a heat exchanger(60) for exchanging heat between the external air inserted through the external air suction port and the air input through the room air suction port; a filer(68) mounted at the side of the heat exchanger to filtrate foreign matters; a support frame formed longitudinally to contact with upper and lower ends of the heat exchanger and to prop up the heat exchanger; an exchanger guide formed longitudinally to contact with left and right ends of the heat exchanger and to guide a longitudinal motion of the heat exchanger; and a reinforcing plate(74) installed in the rear side of the heat exchanger and combined with the rear end of the exchanger guide and the support frame to prevent the exchanger guide and the support frame from moving.