Absorption refrigerator with ice-maker

Abstract

Absorption refrigerator ( 1 ) including a cabinet having outer walls ( 2, 3, 4, 5, 6 ) and at least one door ( 7, 8 ) encasing a low temperature storage compartment ( 9 ) and a higher temperature storage compartment ( 10 ), said compartments being separated by a partition wall ( 11 ). An ice-maker is arranged in one of the compartments. The refrigerator is cooled by an absorption refrigerating system which includes an evaporator tube ( 20 ) in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, and which evaporator tube comprises a first tube section ( 21 ) which is arranged to absorb heat from the low temperature compartment, a second tube section ( 22 ), which is arranged to cool the higher temperature compartment and a third tube section ( 23 ) which is arranged to cool the ice-maker. The first, second and third tube sections are connected in series and the first tube section is arranged upstream of the second tube section. In order to minimize the negative influence of the operation of the ice-maker on the temperature in the freezer compartment, the third tube section is arranged downstream of said first tube section and upstream of said second tube section.

1 . Absorption refrigerator ( 1 ) comprising: 
 a cabinet having outer walls ( 2 , 3 , 4 , 5 , 6 ) and at least one door ( 7 , 8 ), said cabinet enclosing a low temperature storage compartment ( 9 ) and a higher temperature storage compartment ( 10 ), said compartments being separated by a partition wall ( 11 ),    a device for ice fabrication, and    an absorption refrigerating system including an evaporator tube ( 20 ) in which a refrigeration medium flows from an upstream end to a downstream end of the evaporator tube, said evaporator tube comprising a first tube section ( 21 ), arranged to absorb heat from the low temperature compartment, a second tube section ( 22 ), arranged to absorb heat from the higher temperature compartment, and a third tube section ( 23 ) arranged to absorb heat from the ice fabrication device,    wherein the first, second and third tube sections are connected in series and the first tube section is arranged upstream of the second tube section, and    wherein said third tube section ( 23 ) is arranged to predominantly absorb heat from the ice fabrication device by heat conduction and is arranged downstream of said first tube section ( 21 ) and upstream of second tube section ( 22 ).    
   
   
       2 . Absorption refrigerator according to  claim 1 , wherein the first ( 21 ) and third ( 23 ) tube sections are arranged in the low temperature compartment ( 9 ) and the second tube section ( 22 ) is arranged in the higher temperature compartment ( 10 ).  
   
   
       3 . Absorption refrigerator according to  claim 1 , wherein the third tube section is arranged in a separate ice fabrication compartment.  
   
   
       4 . Absorption refrigerator according to any of  claims 1  to  3 , wherein the upstream end of the third tube section ( 23 ) is connected directly to the downstream end of the first tube section ( 21 ).  
   
   
       5 . Absorption refrigerator according to any of  claims 1  to  3 , wherein the upstream end of the second tube section ( 22 ) is connected to the downstream end of the third tube section ( 23 ) through a passive gas beat exchange tube section ( 28 ), arranged inside one of the walls ( 2 ) of the cabinet.  
   
   
       6 . Absorption refrigerator according to any of  claims 1  to  3 , wherein the first tube section ( 21 ) comprises two non-coaxial tube portions ( 21   a ), the axes of the non-coaxial tube portions of the first tube section together defining a general extension plane of the first tube section, and wherein the third tube section ( 23 ) comprises two non-coaxial tube portions ( 23   a ), the axes of the non-coaxial tube portion of the third tube section together defining a general extension plane of the third tube section, whereby said general extension plane of the first tube section is essentially perpendicular to the general extension plane of the third section.  
   
   
       7 . Absorption refrigerator according to  claim 6 , wherein the general extension plane of the first tube section ( 21 ) is essentially vertical and generally parallel to the general extension plane of the partition wall ( 11 ).  
   
   
       8 . Absorption refrigerator according to any of  claims 1  to  3 , wherein the ice fabrication device comprises heating means for effecting partial melting of the ice for facilitating harvesting of the ice.