Refrigerator having circulation guiding structure enabling an improved thermal distribution profile

Abstract

The present invention relates to a refrigerator ( 1 ) having a refrigeration compartment ( 11 ) accessible by a door ( 2 ) and in which food items to be preserved are stored, said refrigerator ( 1 ) further comprising a compressor ( 3 ) circulating a refrigerant fluid, a condenser ( 4 ) providing the refrigerant fluid to be condensed, an evaporator fan ( 6 ) effecting circulation of the cooled air and a cold-wall evaporator ( 5 ) disposed against inner surface of a wall of the refrigeration compartment ( 11 ) facing the door ( 2 ) such that an air supply interspace ( 7 ) is provided between the cold-wall evaporator ( 5 ) and an air supply covering ( 12 ) to be delimited by the latter.

1 - A refrigerator ( 1 ) comprising a refrigeration compartment ( 11 ) accessible by a door ( 2 ) and in which food items to be preserved are stored, a compressor ( 3 ) circulating a refrigerant fluid, an evaporator fan ( 6 ) effecting circulation of the cooled air and a cold-wall evaporator ( 5 ) disposed against inner surface of a wall of the refrigeration compartment ( 11 ), said inner surface being in parallel with said door ( 2 ), an air supply interspace ( 7 ) being provided in which said cold-wall evaporator extends ( 5 ) in the manner to be delimited by an air supply covering ( 12 ) characterized in that—the air supply interspace ( 7 ) is longitudinally divided into a plurality of parallel parts by means of air separators ( 16 ) such that a central interspace ( 17 ) communicates with two lateral interspaces ( 18 ) at a bottom end of said air supply interspace ( 7 ) and—the evaporator fan ( 6 ) is disposed on an inner surface portion of the ceiling of the refrigeration compartment ( 11 ) in communication with said central interspace ( 17 ). 
     
     
         2 - A refrigerator ( 1 ) as in  claim 1 , characterized in that said cold-wall evaporator ( 5 ) is configured such that inlet side (A, C) of the same is first laid substantially along a first lateral interspace ( 18 ), then substantially along a second lateral interspace ( 18 ) and its outlet side (B) is substantially laid along the central interspace ( 17 ). 
     
     
         3 - A refrigerator ( 1 ) as in  claim 1 , characterized in that the air supply covering ( 12 ) comprises a plurality of cooling openings ( 14 ) positioned between longitudinal ends of said air supply covering ( 12 ) and establishing communication between the lateral interspaces ( 18 ) and the refrigeration compartment ( 11 ). 
     
     
         4 - A refrigerator ( 1 ) as in  claim 3 , characterized in that the central interspace ( 18 ) is delimited by part of the air supply covering ( 12 ) that is free of openings between longitudinal ends of the air supply covering ( 12 ). 
     
     
         5 - A refrigerator ( 1 ) as in  claim 3 , characterized in that size of the cooling openings ( 14 ) along the lateral interspaces ( 18 ) gradually increase in the direction of the ceiling of the refrigeration compartment ( 11 ). 
     
     
         6 - A refrigerator ( 1 ) as in  claim 1 , characterized in that said evaporator fan ( 6 ) is disposed on an inner surface portion of the ceiling of the refrigeration compartment ( 11 ) behind a fan covering ( 15 ). 
     
     
         7 - A refrigerator ( 1 ) as in  claim 2 , characterized in that the air supply covering ( 12 ) comprises a plurality of cooling openings ( 14 ) positioned between longitudinal ends of said air supply covering ( 12 ) and establishing communication between the lateral interspaces ( 18 ) and the refrigeration compartment ( 11 ). 
     
     
         8 - A refrigerator ( 1 ) as in  claim 7 , characterized in that the central interspace ( 18 ) is delimited by part of the air supply covering ( 12 ) that is free of openings between longitudinal ends of the air supply covering ( 12 ). 
     
     
         9 - A refrigerator ( 1 ) as in  claim 7 , characterized in that size of the cooling openings ( 14 ) along the lateral interspaces ( 18 ) gradually increase in the direction of the ceiling of the refrigeration compartment ( 11 ).