Patent ID: 7563160
Filing Date: 2009-07-21
Classification: F24F,Y02B

Abstract:
1. A ventilating apparatus comprising: a blower device having an inlet centrifugal fan supplying outdoor air to an indoor space and an outlet centrifugal fan discharging indoor air to an outdoor space; a heat exchange unit performing heat exchange between outdoor air supplied to the indoor space and indoor air discharged to the outdoor space; a case having a first chamber configured to receive the heat exchange unit and a second chamber configured to receive the blower device and to communicate with the first chamber; a first passage through which indoor air discharged to the outdoor space passes; and a second passage through which outdoor air supplied to the indoor space passes, wherein the first passage and the second passage cross at the heat exchanging unit, wherein one end of each of the first and second passages are positioned substantially aligned side by side in a sidewall of the first chamber in a direction transverse to a rotational axis of the inlet centrifugal fan, and the other end of the first passage is positioned in a lower portion of a boundary wall of the second chamber and the other end of the second passage is positioned in an upper portion of the boundary wall of the second chamber, wherein the other end of the second passage is in communication with an axial portion of the inlet centrifugal fan and the other end of the first passage is in communication with a radial portion of the outlet centrifugal fan so that the heat exchange unit and the blower device within the case are configured to minimize the thickness of the case, and wherein the case further comprises: a first intake port provided at the one end of the second passage; a second intake port through which indoor air is introduced; an inlet for supplying outdoor air to the indoor space; and an outlet for discharging indoor air provided at the one end of the first passage.