Cool air supplying apparatus used in refrigerator and refrigerator having the same

Abstract

The present invention provides a cool air supplying apparatus for a refrigerator including a turbo fan configured to a grill forming a freezing space to blow cool air into the freezing space; and a shroud configured between a casing and the grill so as to cover the turbo fan and includes an opening part which sucks cool air, an orifice formed at an end of the opening part, an inclined part formed so as to incline toward the grill from one end of the orifice, and a flat part formed so as to be integrated with the inclined part and configured at a constant interval from the grill. Therefore, it is possible to increase the height of the blades of the turbo fan without increasing the total size of the refrigerator and causing resistance to the inflow of cool air.

1 . A cool air supplying apparatus for a refrigerator comprising:
 a turbo fan that is configured to a grill forming a freezing space so as to blow cool air into the freezing space; and   a shroud that is configured between a casing forming the exterior side of a refrigerator and the grill so as to cover the turbo fan and includes an opening part which sucks cool air, an orifice that is formed at an end of the opening part, an inclined part that is formed so as to incline toward the grill from one end of the orifice, and a flat part that is formed so as to be integrated with the inclined part and configured at a constant interval from the grill.   
   
   
       2 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein the interval between one end of the inclined part in connection with the flat part and the grill is equal to the interval between the flat part and the grill. 
   
   
       3 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein a turbo fan is configured to the grill, and includes a body in which a hub protrudes at the center, a plurality of blades formed at the edge of the body, and a fan shroud mounted to the blades so as to fix the blades. 
   
   
       4 . The cool air supplying apparatus for a refrigerator of  claim 3 , wherein the fan shroud is located at one side of the inclined part. 
   
   
       5 . The cool air supplying apparatus for a refrigerator of  claim 3 , wherein the fan shroud is formed to bend such that one end of the fan shroud is located at one side of the orifice, and the other end is located at one side of the inclined part. 
   
   
       6 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein the opening part and the orifice protrude further than the flat part. 
   
   
       7 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein a height C of the inclined part is set in the range of 20 to 30% of an interval A between the flat part and the grill. 
   
   
       8 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein a width D of the inclined part is set in the range of 50 to 150% of an interval A between the flat part and the grill. 
   
   
       9 . The cool air supplying apparatus for a refrigerator of  claim 1 , wherein an interval B between the flat part and the casing is set in the range of 90 to 110% of an interval A between the flat part and the grill. 
   
   
       10 . The cool air supplying apparatus for a refrigerator of  claim 8 , wherein the width D of the inclined part is a length that is obtained when the inclined part is projected on the grill. 
   
   
       11 . A refrigerator comprising:
 a casing forming the exterior side of the refrigerator;   a grill that is configured at a distance from the casing to form a freezing space;   a turbo fan that is configured to the grill, and includes a body in which a hub protrudes at the center, a plurality of blades formed at the edge of the body, and a fan shroud mounted to the blades so as to fix the blades;   a shroud that is configured between the casing and the grill so as to cover the turbo fan and includes an opening part which sucks cool air, an orifice that is formed at an end of the opening part, an inclined part that is formed so as to incline toward the grill from one end of the orifice, and a flat part that is formed so as to be integrated with the inclined part and configured at a constant interval from the grill, in which the interval between one end of the inclined part in connection with the flat part and the grill is equal to the interval between the flat part and the grill; and   an evaporator that is configured below of the turbo fan to generate cool air.