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, and to reduce the humidity influence of the ice-maker, the third tube section is arranged downstream of said first tube section and upstream of said second tube section and the ice fabrication device is exposed to air circulating in the low temperature compartment or in the higher temperature compartment (10), and means are provided for melting frost generated by humidity in said low temperature Compartment (9) or said higher temperature compartment (10) respectively.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an absorption refrigerator including; a cabinet having outer walls and at least one door encasing a low temperature storage compartment and a higher temperature storage compartment, said compartments being separated by a partition wall, a device for ice fabrication, and an absorption refrigerating system including an evaporator tube 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 which is arranged to absorb heat from the low temperature compartment, a second tube section, which is arranged to absorb heat from the higher temperature compartment and a third tube section which is 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. BACKGROUND OF THE INVENTION [00...

AI Technical Summary

Benefits of technology

[0011] It is therefore an object of the present invention to provide an absorption refrigerator having a low temperature compartment, a higher temperature compartment and an ice manufacturing device, at which absorption refrigerator the total cooling power of the refrigeration apparatus is more favorably distributed between the two compartments and the ice-maker.

[0013] Another object is to provide such an absorption refrigerator at which it is possible to use sophisticated ice-making devices including heating elements without adversely affecting the cooling capacity of the freezer compartment.

[0020] Thus, by the arrangement of the different evaporator sections according to the invention, it is assured that the total cooling capacity generated by the refrigeration apparatus is distributed by the evaporator to the items to be cooled in the most effective manner at the same time as no additional defrosting means needs to be arranged for eliminating frost generated by the humidity load caused by the ice-maker.

Problems solved by technology

A problem at this known type of absorption refrigerator is that it is difficult to achieve a high enough cooling power of the refrigeration system to maintain the freezer compartment at the low temperature which is desired.

This length in turn, is limited by the dimensions of the refrigerator cabinet and by the fact that the evaporator tube needs to be designed with a downward inclination over its entire length, from the upstream to the downstream end.

Especially when utilizing some kinds of automatic ice-makers, this problem is further increased.

A further problem associated with ice-makers and particularly with automatic ice-makers is the humidity which is transferred from the ice-maker to the air in the refrigerator during supply of water and during heating the ice prior to harvesting.

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