Air Blowing Arrangement For a Combined Refrigerator

Abstract

An air blowing arrangement for a combined refrigerator of the forced ventilation type and that comprises: a cabinet formed by an outer case and by two inner cases spaced from each other by a thermal insulating filler and defining a freezing compartment and a refrigerating compartment; and an air diffusing element defining at least one air distributing duct, having an air inlet in communication with the interior of the inner case of the freezing compartment and a plurality of air outlets opened to the interior of the refrigerating compartment. The air diffusing element is disposed in the interior of the thermal insulating filler and seated against the rear wall of the inner case of the refrigerating compartment, said rear wall being provided with a plurality of windows aligned with respective air inlet openings of the air distributing duct.

1 . An air blowing arrangement for a combined refrigerator of the type with forced ventilation and which comprises: a cabinet formed by an outer case and two inner cases, each provided with a rear wall and spaced from each other and from the outer case by a thermal insulating filler, said inner cases respectively defining a freezing compartment and a refrigerating compartment; and an air diffusing element mounted to the cabinet and defining at least one air distributing duct, which has an air inlet in communication with the interior of the inner case of the freezing compartment, in order to receive a cool airflow, and a plurality of air outlets opened to the interior of the refrigerating compartments, characterized in that the air diffusing element is disposed in the interior of the thermal insulating filler, between the outer case and the rear wall of the inner case of the refrigerating compartments, against which it is seated and retained, said rear wall being provided with a plurality of windows with which are aligned respective air inlet openings of the air distributing duct defined in the interior of the air diffusing body. 
   
   
       2 . The arrangement, as set forth in  claim 1 , wherein the air diffusing element comprises a parallelepipedic body of low height and made of a material of low thermal conductivity and presenting a rear face and a front face to be hermetically seated and externally affixed against the rear wall of the respective inner case, said air distributing duct being defined by a respective channel provided along part of the longitudinal extension of the air diffusing element and opened to the rear face of the latter, the formation of said air distributing duct being completed by closing the channel with a closing plate hermetically seated and retained against the rear face of the air diffusing element 
   
   
       3 . The arrangement, as set forth in  claim 2 , wherein the air distributing duct presents an air inlet turned and opened to the front face of the air diffusing element, the rear wall of the inner case of the refrigerating compartment being provided with an opening aligned with said air inlet, and the refrigerating compartment being internally provided with a case affixed against the rear wall of the respective inner case, in order to have its interior maintained in fluid communication with the air inlet of the air distributing duct through the respective opening provided in said rear wall and the case being maintained in communication with the interior of the inner case of the freezing compartment to receive the cool airflow. 
   
   
       4 . The arrangement, as set forth in  claim 3 , wherein it comprises: a flow control means mounted in the case and to be selectively driven from a flow releasing condition to a flow blocking condition of the case to the air distributing duct. 
   
   
       5 . The arrangement, as set forth in  claim 4 , characterized in that wherein it further comprises a driving means operatively associated with the flow control means to modify the operational condition of the latter; and a temperature sensor mounted in the refrigerating compartment, so as to activate the driving means to conduct the flow control means to one of its operational conditions due to the temperature reigning in the refrigerating compartments. 
   
   
       6 . The arrangement, as set forth in  claim 5 , wherein the driving means is defined by a thermostat. 
   
   
       7 . The arrangement, as set forth in  claim 4 , wherein the flow control means is defined by an obturator mounted in the interior of the case. 
   
   
       8 . The arrangement, as set forth in  claim 5 , wherein the flow control means is defined by a fan mounted in the interior of the case, the driving means being defined by an electric motors. 
   
   
       9 . The arrangement, as set forth in  claim 1  wherein the air diffusing element comprises an air inlet duct also in the form of a channel and having an air inlet opened to one of the ends of the air diffusing element and in communication with the interior of the inner case of the freezing compartments, and an air outlet turned and opened to the front face of the air diffusing element, the rear wall of the inner cases of the refrigerating compartments being provided with an opening aligned with said air outlet and in communication with the interior of the case. 
   
   
       10 . The arrangement, as set forth in  claim 9 , wherein the air inlet of the air inlet duct is disposed in a lower end of the air diffusing element, the air outlet being disposed in an upper region of both the air diffusing element and the refrigerating compartment. 
   
   
       11 . The arrangement, as set forth in  claim 10 , wherein the air diffusing element comprises an air inlet duct that is centrally disposed, and two air distributing ducts each disposed on each side of the air inlet duct. 
   
   
       12 . The arrangement, as set forth in  claim 5 , wherein the flow control means is defined by an obturator mounted in the interior of the case. 
   
   
       13 . The arrangement, as set forth in  claim 6 , wherein the flow control means is defined by an obturator mounted in the interior of the case.