Damper apparatus for air conditioning system

Abstract

The invention relates to a damper apparatus for an air conditioning system for more accurately adjusting air volume in accordance with opening ratio of a damper blade. The damper apparatus includes a plurality of damper blades and an actuator for rotating the damper blade. The apparatus also includes an air flow path dividing means for dividing an air flow path in a duct into upper and lower regions with respect to a rotation axis of the damper blade and exerting resistance to air flow between the biased damper blade and the air flow path dividing means. The invention effectively suppresses air overflow with the air flow path dividing means to decrease the air volume surpassing the opening ratio, thereby more accurately adjusting air volume.

1 . A damper apparatus for an air conditioning system for adjusting air volume in a duct, comprising: 
 a plurality of damper blades each disposed rotatably to open and close an air flow path;    an actuator for rotating the damper blades; and    a plurality of air flow path dividing means disposed at an air inlet side for dividing the air flow path inside the duct into an upper region and a lower region with respect to a rotation axis of the damper blades and exerting resistance to air flow between the damper blade biased toward the air inlet side and the air flow path dividing means.    
   
   
       2 . The damper apparatus for an air conditioning system according to  claim 1 , wherein the air flow path dividing means comprises a separation plate disposed at a front side of the damper blade.  
   
   
       3 . The damper apparatus for an air conditioning system according to  claim 2 , wherein the separation plate has sealing material at an end portion and side end portions thereof, the sealing material providing sealing with the rotation axis of the damper blade and with the duct.  
   
   
       4 . The damper apparatus for an air conditioning system according to  claim 1 , wherein the rotation axis of the damper blades and the air flow path dividing means are shifted upward or downward from a center of the damper blades.  
   
   
       5 . The damper apparatus for an air conditioning system according to  claim 4 , wherein an upper part of the damper blades is opened forward and a lower part thereof is opened backward in a position where the rotation axis of the damper blade and the air flow path dividing means are shifted downward from the center of the damper blade.  
   
   
       6 . The damper apparatus for an air conditioning system according to  claim 4 , wherein, an upper part of the damper blades is opened backward and a lower part thereof is opened forward in a position where the rotation axis of the damper blade and the air flow path dividing means are shifted upward from the center of the damper blade.  
   
   
       7 . A damper apparatus for an air conditioning system for adjusting air volume in a duct comprising: 
 a plurality of damper blades each disposed rotatably to open and close an air flow path;    an actuator for rotating the damper blades; and    a plurality of air flow path dividing means disposed at an air inlet side for dividing the air flow path inside the duct into an upper region and a lower region with respect to a rotation axis of the damper blades and exerting resistance to air flow between the damper blade biased toward the air inlet side and the air flow path dividing means; and    a plurality of average pressure measuring units and each average pressure measuring unit having an average total pressure measuring part and a static pressure measuring part for measuring an average differential pressure or dynamic pressure of air flowing in the duct.    
   
   
       8 . The damper apparatus for an air conditioning system according to  claim 7 , wherein the air flow path dividing means comprises a separation plate disposed at a front side of the damper blade.  
   
   
       9 . The damper apparatus for an air conditioning system according to  claim 8 , wherein the separation plate has sealing material at an end portion and side end portions thereof, the sealing material providing sealing with the rotation axis of the damper blade and with the duct.  
   
   
       10 . The damper apparatus for an air conditioning system according to  claim 7 , wherein the average pressure measuring unit is provided in a number that corresponds to the number of damper blades.  
   
   
       11 . The damper apparatus for an air conditioning system according to  claim 7 , wherein the average total pressure measuring part comprises a plurality of total pressure measuring holes formed toward the air inlet side, on a front side of the air flow path dividing means, each of the total pressure measuring holes comprising an air induction portion having a sloped inner surface.  
   
   
       12 . The damper apparatus for an air conditioning system according to  claim 7 , wherein the average static pressure measuring part comprises a plurality of static pressure measuring holes formed on an underside of the air flow path dividing means.  
   
   
       13 . The damper apparatus for an air conditioning system according to  claim 7 , wherein the rotation axis of the damper blades and the air flow path dividing means are shifted upward or downward from a center of the damper blades.  
   
   
       14 . The damper apparatus for an air conditioning system according to  claim 13 , wherein an upper part of the damper blades is opened forward and a lower part thereof is opened backward in a position where the rotation axis of the damper blade and the air flow path dividing means are shifted downward from the center of the damper blade.  
   
   
       15 . The damper apparatus for an air conditioning system according to  claim 13 , wherein, an upper part of the damper blades is opened backward and a lower part thereof is opened forward in a position where the rotation axis of the damper blade and the air flow path dividing means are shifted upward from the center of the damper blade.