Ventilating system

Abstract

Disclosed is to a ventilating system for supplying the outdoor air to the inside of a room or discharging the indoor air to the outside of a room. The ventilating system comprises a case having an inlet and an outlet fluid-communicated with the inside of a room. The case is fluid-communicated with the outside of the room through a first flow passageway. A second flow passageway is provided inside the case so as to fluid-communicate the outlet with the first flow passageway. A third flow passageway is provided inside the case so as to fluid-communicate the inlet with the first flow passageway. The case is provided with a fan unit, which functions to suction the indoor air through the third flow passageway and exhaust to the outside of the room through the first flow passageway, or to suction the outside air through the first and second flow passageway and supply into the inside of the room. A first damper is disposed between the outside of the room and the fan unit so as to open alternately the second or third flow passageway.

1 . A ventilating system comprising: 
 a case having an inlet and an outlet fluid-communicated with the inside of a room;    a first flow passageway fluid-communicating the case with the outside of the room;    a second flow passageway fluid-communicating the outlet with the first flow passageway, the second flow passageway being provided inside the case;    a third flow passageway fluid-communicating the inlet with the first flow passageway, the third flow passageway being provided inside the case;    a fan unit suctioning an indoor air through the third flow passageway and exhausting to the outside of the room through the first flow passageway, or suctioning an outdoor air through the first and second flow passageways and supplying into the inside of the room, the fan unit being provided inside the case; and    a first damper opening alternately the second flow passageway and the third flow passageway, the first damper being disposed between the outside of the room and the fan unit.    
     
     
         2 . The system according to  claim 1 , wherein the fan unit suctions the air in an axial direction and discharges it in a radial direction.  
     
     
         3 . The system according to  claim 1 , wherein the case is provided in a ceiling.  
     
     
         4 . The system according to  claim 1 , wherein the second flow passageway and the third flow passageway are fluid-communicated with each other inside the case, and the fan unit is installed so as to suction the air through a point where the second and third flow passageways are fluid-communicatively connected to each other.  
     
     
         5 . The system according to  claim 1 , wherein the fan unit comprises: 
 a scroll casing provided inside the case;    a fan provided inside the scroll casing;    a common inlet, through which the outdoor air flowing the second flow passageway or the indoor air flowing the third flow passageway is in-flown, the common inlet being provided in the scroll casing;    a first outlet fluid-communicated with the outlet of the case and provided in the scroll casing; and    a second outlet fluid-communicated with the first flow passageway and provided in the scroll casing.    
     
     
         6 . The system according to  claim 5 , wherein the fan suctions the air in-flown through the common inlet in an axial direction and thereafter discharges it in a radial direction towards the first outlet and the second outlet.  
     
     
         7 . The system according to  claim 5 , wherein the common inlet is disposed so as to be fluid-communicated with the connection portion of the first flow passageway and the second flow passageway and the inlet of the case.  
     
     
         8 . The system according to  claim 1 , further comprising a partition plate dividing the inner space of the case into two spaces, the partition plate being provided inside the case, wherein the fan unit is installed in such a manner that it is disposed in either one of the two spaces and suctions air inside the other space and discharges it into the either one of the two spaces.  
     
     
         9 . The system according to  claim 1 , further comprising a second damper selectively opening and closing the inlet, the second damper being provided in the case.  
     
     
         10 . The system according to  claim 1 , further comprising a third damper selectively opening and closing the outlet, the third damper being provided in the case.  
     
     
         11 . The system according to  claim 1 , further comprising a fourth damper opening the inlet and the outlet alternately, the fourth damper being provided in the case.  
     
     
         12 . The system according to  claim 1 , wherein the inlet is provided in a bottom face of the case and the outlet is provided in a side face of the case.  
     
     
         13 . The system according to  claim 1 , wherein the inlet is provided in the lateral lower side of the case and the outlet is provided in the lateral upper side of the case.  
     
     
         14 . The system according to  claim 1 , further comprising a heater heating the outdoor air being supplied into the inside of the room, the heater being provided in the first flow passageway.  
     
     
         15 . The system according to  claim 1 , further comprising a filter purifying the outdoor air being supplied into the inside of the room, the filter being provided in the second flow passageway.  
     
     
         16 . A ventilating system comprising: 
 a case having an inlet and an outlet fluid-communicated with the inside of a room;    a duct fluid-communicating the case with the outside of the room and guiding an outdoor air into the case or an indoor air inside the case into the outside of the room alternately;    a fan unit suctioning an air entered into the case and then exhausting toward the outlet and the duct, the fan unit being provided inside the case; and    a first damper blocking alternately the indoor air being discharged from the fan unit toward the duct and the outdoor air being supplied from the duct into the fan unit, the first damper being disposed between the duct and the fan unit.    
     
     
         17 . The system according to  claim 16 , wherein the fan unit includes: 
 a common inlet fluid-communicated with the inlet of the case and the duct;    a fan suctioning an air through the common inlet and then discharging it;    a first outlet guiding the air, which is discharged from the fan, into the outlet of the case; and    a second outlet guiding the air, which is discharged from the fan, into the duct.    
     
     
         18 . The system according to  claim 16 , further comprising a partition plate provided inside the case, wherein the partition plate divides the inner space of the case into two spaces, through one of which the air enters the unit fan and through the other one of which the air exits from the fan unit.  
     
     
         19 . The system according to  claim 18 , wherein the first damper is assembled to the partition plate so as to close alternately the two spaces divided by the partition plate.  
     
     
         20 . The system according to  claim 16 , further comprising at least one additional damper, which closes the inlet and the outlet of the case separately or alternately.  
     
     
         21 . A ventilating system comprising: 
 a case including an inlet and an outlet fluid-communicated with the inside of a room, a lower space fluid-communicated with the inlet, an upper space fluid-communicated with the outlet, and a common inlet fluid-communicating the upper space and the lower space;    a duct fluid-communicating the upper and lower spaces of the case with the outside of the room;    a fan suctioning an air of the lower space and discharging it towards the upper space, the fan being provided inside the case; and    a first damper fluid-communicating the duct alternately with the upper space or the lower space, the first damper being provided between the outside of the room and the fan.