EP4217673A1

EP4217673A1 - Refrigerant line assembly for a refrigeration appliance, and refrigeration appliance

Info

Publication number: EP4217673A1
Application number: EP21777429.8A
Authority: EP
Inventors: Edit Strass; Andreas Vogl; Ming Zhang
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2020-09-22
Filing date: 2021-09-09
Publication date: 2023-08-02
Also published as: WO2022063590A1; DE102020211804A1

Abstract

A refrigerant line assembly for a refrigeration appliance comprises: - a suction tube, having a first end region for connection to an outlet of a first evaporator, which first end region has a curved first tube connection portion, and a second end region for connection to an inlet of a compressor; and - a connecting tube, having a first end region for connection to an outlet of a second evaporator and a second end region for connection to an inlet of the first evaporator, which second end region has a curved second tube connection portion; wherein the first tube connection portion and the second tube connection portion (35) run parallel to each other and are fastened to each other.

Description

Refrigerant line arrangement for a refrigeration device and refrigeration device

TECHNICAL AREA

The present invention relates to a refrigerant line arrangement for a refrigeration appliance and a refrigeration appliance, in particular a household refrigeration appliance such as a fridge-freezer combination.

STATE OF THE ART

Refrigeration appliances, in particular household refrigeration appliances with more than one fridge compartment, for example a fridge-freezer combination with a fridge compartment and a freezer compartment, often have a fridge compartment evaporator for cooling the fridge compartment and a freezer compartment evaporator for cooling the freezer compartment. There are configurations in which an outlet of the refrigerator compartment evaporator and an inlet of the freezer compartment evaporator are connected by means of a connecting pipe, with an outlet of the freezer compartment evaporator being connected by means of a suction pipe to a suction-side inlet of a compressor. A refrigerant can be supplied to the evaporators by the compressor via one or more supply lines.

Typically, the evaporators and a refrigerant line assembly, which includes the suction tube, the connecting tube and the supply lines, are mounted separately from each other. For example, the refrigerant line arrangement can be installed as a preassembled assembly on the freezer compartment and the refrigerator compartment. In this case, quick and simple assembly is desirable, without the refrigerant line arrangement being damaged.

DE 10 2016 208 494 A1, for example, discloses a refrigeration appliance with two evaporators, a capillary tube being provided as the supply line, which is attached to a suction tube to protect against kinking when the refrigerated compartment container and freezer compartment container are being handled.

SUMMARY OF THE INVENTION It is one of the objects of the present invention to provide improved solutions for refrigerant line arrangements of refrigeration devices.

According to the invention, this object is achieved by a refrigerant line arrangement having the features of claim 1 and by a refrigeration device having the features of claim 11 .

According to a first aspect of the invention, a refrigerant line arrangement for a refrigeration device is provided. The refrigerant line arrangement comprises an intake pipe with a first end area provided for connection to an outlet of a first evaporator, which has a curved first pipe connection section, and a second end area provided for connection to an inlet of a compressor and a connecting pipe with a connection to an outlet of a second evaporator and a first end area provided for connection to an inlet of the first evaporator, which second end area has a curved second pipe connection section, wherein the first pipe connection section and the second pipe connection section each run parallel to one another and are fastened to one another.

According to a second aspect of the invention, a refrigeration device, in particular a household refrigeration device, is provided. The refrigeration device comprises a first container, which defines a first refrigerated compartment for accommodating refrigerated goods, e.g Evaporator, which is thermally coupled to the second refrigeration compartment, a compressor for compressing refrigerant and a refrigerant line arrangement according to the first aspect of the invention. The first end area of the suction pipe is connected to an outlet of the first evaporator and the second end area of the suction pipe is connected to an inlet of the compressor. Furthermore, the first end area of the connecting pipe is connected to an outlet of a second evaporator and the second end area of the connecting pipe is connected to an inlet of the first evaporator. Furthermore, the refrigeration device has a condenser which is connected to an outlet of the compressor and at least to an inlet of the second evaporator An idea underlying the invention is to connect the connection pipe and the suction pipe to each other in respective pipe connection sections. The pipe connection sections of the suction pipe and the connecting pipe are curved or curved sections. Thus, a curved area of the suction pipe and a similarly curved area of the connecting pipe run over one another or overlap, and the connecting pipe and suction pipe are fastened to one another in this overlying area. As a result, the intake manifold and the connecting manifold can be fixed in a simple manner in relation to at least two degrees of freedom.

By fastening the suction pipe and connecting pipe to one another in their respective pipe connection sections, a reliably defined arrangement of the end regions of the suction pipe and connecting pipe relative to one another is achieved. As a result, the effort involved in positioning the individual end regions of the connecting pipe and intake pipe relative to the connections of the evaporators can be advantageously reduced, and assembly can therefore be made easier.

Advantageous refinements and developments result from the dependent claims referring back to the independent claims in connection with the description.

The first evaporator can be a freezer compartment evaporator for cooling a freezer compartment, for example. The second evaporator can be, for example, a refrigerator compartment evaporator for cooling a refrigerator compartment. However, it is quite generally possible that the first evaporator is provided for cooling or dissipating heat from a first refrigeration compartment and the second evaporator is provided for cooling or dissipating heat from a second refrigeration compartment, with the second refrigeration compartment preferably being cooled to a temperature is, which is greater than a temperature in the first cold compartment.

According to some embodiments, it can be provided that the refrigerant line arrangement has a first supply line for connecting a condenser, which is connected to an outlet of the compressor, to an inlet of the second evaporator. Optionally, the first supply line can be designed as a capillary which extends at least in sections in contact with the suction tube. Thus, to at least part of the refrigerant line arrangement fulfills the function of an intake manifold throttle heat exchanger, as a result of which high energy efficiency is achieved with a compact design. It can further optionally be provided that the first supply line is also fastened to the connecting pipe. For example, the first supply line can be arranged at least in sections in contact with the connecting pipe. By fixing the suction pipe and connecting pipe to one another in their pipe connecting sections, buckling of the first supply line fastened to the suction pipe and connecting pipe can be reliably avoided in these cases.

According to some embodiments, it can be provided that the refrigerant line arrangement has a second feed line for connecting the outlet of the compressor to the inlet of the first evaporator, with one end of the second feed line opening into the connecting pipe. For example, the connecting pipe can have a branch piece between its first and its second end area, in particular between the second pipe connecting section and the first end area, to which the second connecting pipe is connected. In general, the second supply line is connected in a fluid-conducting manner to the connecting pipe in a region lying outside the first refrigerating compartment and outside the second refrigerating compartment, or the branch piece lies outside the first and second refrigerating compartment. This allows the optional second supply line to be fitted and connected very easily.

According to some embodiments, it can be provided that the second supply line is designed as a capillary which extends at least in sections in contact with the suction pipe. Thus, at least part of the refrigerant line arrangement can fulfill the function of an intake manifold throttle heat exchanger, as a result of which high energy efficiency is achieved with a compact design.

According to some embodiments, it can be provided that the pipe connection sections are designed as elbows. For example, each pipe connection section can have two pipe sections running parallel to one another, which are connected to one another by an arcuate pipe section.

According to some embodiments, it can be provided that the pipe connection sections are designed as bends. For example, each pipe connection section have a circularly curved section as an arc, which connects two straight pipe sections extending transversely to one another.

According to some embodiments, it can be provided that the pipe connection sections are designed as a loop. It can be provided here, for example, that the respective pipe connection section extends spirally with at least one winding or over at least 360 degrees.

According to some embodiments, it can be provided that the pipe connection sections each have at least one bend and/or at least one bend. For example, stepped configurations can be provided. It is also conceivable that a bend or a bend extends in a first plane and a further bend or bend extends in a second plane.

According to some embodiments, it can be provided that the pipe connection sections are attached to one another by means of one or more fixing devices, which each enclose the first and the second pipe connection section. Such a connection that encloses or clamps the pipe connection sections offers the advantage that it can be installed easily and without great effort. At the same time, the pipe connection sections can be reliably fixed to one another. Cable ties, clamps or sections of adhesive tape can optionally be provided as fixing devices.

According to some embodiments of the refrigeration device, it can be provided that the refrigerant line arrangement, as described above, has a first supply line, which can be designed as a capillary, for example, which extends at least in sections in contact with the suction pipe. In this case, the outlet of the condenser is connected to the inlet of the second evaporator by means of the first supply line. This can include both a direct connection and a variant in which additional hydraulic elements are arranged between an inlet of the supply line and the outlet of the condenser, such as a piece of line, a dryer, one or more valves or the like. According to some embodiments of the refrigeration device, the second evaporator can be implemented as a finned evaporator and arranged inside the second refrigeration compartment, the second container having a recess through which the first end region of the connecting pipe and the first supply line are guided. The finned evaporator can have, for example, a multiplicity of fins which are connected to a refrigerant line pipe. In addition, a fan can be provided which is designed to convey air over the cooling fins. For example, the finned evaporator can be arranged in the second refrigeration compartment behind a cover. The installation of the cooling device is further facilitated by the passage of the first supply line and connecting pipe through a common recess.

According to some embodiments of the refrigeration device, it can be provided that the refrigerant line arrangement, as described above, has a second supply line, which opens into the connecting pipe. As already mentioned, the second supply line can be designed as a capillary which extends at least in sections in contact with the suction pipe. In this case, the inlet of the first evaporator is connected to the outlet of the condenser by means of the second feed line. Similar to the optional first supply line, a direct connection can be provided or additional hydraulic elements can be arranged between an inlet of the supply line and the outlet of the condenser, such as a line piece, a dryer, one or more valves or the like. For example, a solenoid valve can be provided, to which a line coming from the condenser is connected on the input side and the first and the second supply line are connected on the output side. The solenoid valve can be set up to vary an amount of refrigerant that is supplied to the first or the second supply line.

According to some embodiments, the first evaporator can be realized as a finned evaporator and arranged within the first refrigeration compartment, the first container having a first recess through which the second end region of the connecting pipe is passed and a second recess through which the first end region of the suction pipe is passed is. Since the connecting pipe and the suction pipe are fixed to each other in their pipe connecting portions, a stationary arrangement of the first end portion of the suction pipe relative to the first end portion of the connecting pipe can be reliably achieved, which facilitates the insertion into the first and second recesses. tion advantageously facilitated. The finned evaporator can be implemented as described above.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is explained below with reference to the figures of the drawings. From the figures show:

1 shows a schematic view of a cooling circuit of a refrigeration device according to an exemplary embodiment of the invention;

FIG. 2 shows a schematic view of a refrigeration device according to an exemplary embodiment of the invention; FIG.

3 shows a schematic view of a coolant line arrangement according to an exemplary embodiment of the invention; and

4 shows a schematic view of a coolant line arrangement according to a further exemplary embodiment of the invention;

5 shows a schematic view of a coolant line arrangement according to a further exemplary embodiment of the invention; and

6 shows a schematic view of a coolant line arrangement according to a further exemplary embodiment of the invention.

In the figures, the same reference symbols designate identical or functionally identical components, unless otherwise stated.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

1 shows, by way of example and in a schematic manner, a hydraulic circuit diagram of a refrigeration device 100, which in particular can be a household refrigeration device. As shown in FIG. 1, the refrigerator 100 has a first container 130, a first evaporator 140, a second tank 110, a second evaporator 120, a compressor 150 and a condenser 160. Furthermore, the refrigeration device 100 comprises a coolant line arrangement 1 for the hydraulically conductive connection of the compressor 150 or the condenser 160 to the second evaporator 120 and the first evaporator 140 and of the evaporators 120, 140 to one another. In addition, the refrigeration device 100 can have an optional dryer 170 and a likewise optional valve arrangement 180 .

FIG. 2 shows a schematic view of the structure of the refrigeration device 100, only the second container 110, the first container 130 and the refrigerant line arrangement 1 being shown for reasons of clarity.

The second container 110 can, for example, have a substantially cuboid shape, as shown by way of example in FIG. The second container 110 can have a recess or through-opening 113 for the passage of one or more pipelines. As shown by way of example in FIG. 2 , the recess 113 can be formed on a rear wall 115 of the second container 110 , for example.

The first container 130 can, for example, be essentially cuboid with an optional step, as is shown in FIG. 2 by way of example. In general, the first container 130 defines an interior space, which forms a first refrigeration compartment 131 for accommodating refrigerated goods, such as food, beverages, etc. The first container 130 may have a first recess or port 133 and a second port 134 . The through openings 133, 134 are used for the passage of pipelines and can, for example, be arranged one above the other in relation to a vertical direction V, as is shown in FIG. 2 by way of example. As is further shown by way of example in FIG.

As shown in FIG. 2 by way of example, the second container 110 can be arranged above the first container 130 with respect to the vertical direction V. FIG. Preferably, the second container 110 and the first container 130 are surrounded by insulation (not shown). The hydraulic circuit of the refrigeration device 100 is explained below with reference to FIG. 1 . In Fig. 1, the refrigerant line arrangement 1 is shown only symbolically to identify the hydraulic connections. Exemplary designs of the refrigerant line arrangement 1 are shown in Figs. 2 to 6 and will be explained in more detail below.

As shown by way of example in Fig. 1, the refrigerant line arrangement 1 comprises an intake pipe 2, a connecting pipe 3, an optional first supply line 4 and a likewise optional second supply line 5.

As shown in FIG. 1 , the second evaporator 120 is thermally coupled to the second refrigeration compartment 111 to extract heat from the second refrigeration compartment 111 . For example, the second refrigeration compartment 111 can be a refrigeration compartment and the second evaporator 120 can be set up to cool the refrigeration compartment 111 to a temperature between 0.5° C. and 15° C. A refrigerator compartment evaporator 120 as the first evaporator and a refrigerator compartment 131 as the first refrigeration compartment are referred to below purely by way of example without restricting the generality of the invention. In the same way, the second container 110 is also referred to below as the refrigerated compartment container 110 without restricting the generality of the invention.

The cooling compartment evaporator 120 can be arranged, for example, inside the cooling compartment 111 or in the interior space defined by the cooling compartment container or the second container 110 . The cooling compartment evaporator 120 can optionally be implemented as a finned evaporator. As shown symbolically in FIG. 1 , the cooling compartment evaporator 120 implemented as a finned evaporator can be assigned a fan 123 with which air can be circulated within the cooling compartment 111 and guided over cooling fins of the cooling compartment evaporator 120 .

The first evaporator 140 is thermally coupled to the first refrigeration compartment 131 to extract heat therefrom. For example, the first cold compartment 131 can be a freezer compartment and the first evaporator 140 can be set up to cool the freezer compartment 131 to a temperature of less than 0°C. However, the first refrigeration compartment 131 can also be a refrigeration compartment, which is heated by the first evaporator 140 to a temperature of greater than 0 °C, for example in a range between 0.5 °C and 15 °C. A freezer compartment evaporator 140 as the first evaporator and a freezer compartment 131 as the first refrigeration compartment are referred to below purely by way of example without restricting the generality of the invention. In the same way, the first container 130 is also referred to below as the freezer compartment container 130 without restricting the generality of the invention.

The freezer compartment evaporator 140 can be arranged, for example, inside the freezer compartment 131 or in the interior space defined by the freezer compartment container 130 . The freezer compartment evaporator 140 can optionally be implemented as a finned evaporator. As shown symbolically in FIG. 1 , the freezer compartment evaporator 140 implemented as a finned evaporator can be assigned a fan 133 with which air can be circulated within the freezer compartment 131 and guided over the cooling fins of the freezer compartment evaporator 140 .

As shown schematically in Fig. 1, an outlet 122 of the refrigerator compartment evaporator 120 is connected to an inlet 141 of the freezer compartment evaporator 140 by the connecting pipe 3 of the coolant line arrangement 1, so that refrigerant can be introduced from the refrigerator compartment evaporator 120 into the freezer compartment evaporator 140.

The compressor 150 is set up for compressing refrigerant, in particular gaseous refrigerant. An input 151 of the compressor 150 is connected via the suction pipe 2 of the coolant line arrangement 1 to an output 142 of the freezer compartment evaporator 140, as is shown schematically in FIG. An outlet of the compressor 152 is connected to an inlet 161 of the condenser 160 . The compressor 150 thus sucks refrigerant from the freezer compartment evaporator 140, compresses the refrigerant and supplies it to the condenser 160, in which heat from the refrigerant is dissipated to the environment.

As shown by way of example in FIG. 1 , an outlet 162 of the condenser 160 can optionally be connected to a dryer 170 which is set up to separate gaseous and liquid components of the refrigerant from one another. The optional valve assembly 180, which as shown in FIG. 1 may be located downstream of the optional dryer 170, may include a shut-off valve 181 for shutting off coolant circulation. Alternatively or additionally, the valve assembly 180 can be a control valve 182, to which the optional first supply line 4 and the optional second supply line 5 are connected. The control valve 182 can be embodied, for example, as a solenoid valve and set up to selectively feed coolant into the first supply line 4 or the second supply line 5 or generally to vary a distribution of the mass flow of coolant between the first and the second supply line 4, 5.

In general, the outlet 162 of the condenser 160 is connected to an inlet 121 of the refrigerator compartment evaporator 120, e.g. as shown in Fig. 1 via the optional first feed line 4, and to the inlet 141 of the freezer compartment evaporator 140, e.g. via the optional second feed line 5, as in 1 shown by way of example. With the aid of the compressor 150, coolant can thus be circulated through the condenser 160 and the evaporators 120, 140. The connection of compressor 150, condenser 160, refrigerator compartment evaporator 120 and freezer compartment evaporator 140 shown as an example in FIG. 1 is also referred to as a “double serial connection”.

In the figs. 2 to 6 structural configurations of the refrigerant line arrangement 1 are shown as examples. As can be seen in Fig. 1, the suction pipe 2 is fluidically conductively connected at a first end to the outlet 142 of the freezer compartment evaporator 140 and at a second end to the inlet 151 of the compressor 150. A first end region 21 of the suction pipe adjoining the first end 2 is guided through the second recess 134 of the freezer compartment container 130, as shown in FIG. As is further shown by way of example in FIG. 2 , the first end section 21 of the suction pipe 2 has a first pipe connection section 25 in an area located outside the freezer compartment 131 . FIG. 3 shows the coolant line arrangement 1 shown in FIG. 2 in an enlarged view. As in Figs. 2 and 3, the first pipe connection section 25 can be designed, for example, as an elbow, which has a straight first pipe section 25A, a second pipe section 25B running parallel thereto, and an arcuate pipe section 25C connecting the first and second pipe sections 25A, 25B. As will be explained below, other configurations of the first pipe connection section 25 are also conceivable. In general, the first pipe connection section 25 has a curved course or at least one curved section, for example the third pipe section 25C, as shown in FIGS. 2 and 3 as an example. The connecting pipe 3 is connected at a first end to the outlet 122 of the refrigerator compartment evaporator 120 and at a second end to the inlet 141 of the freezer compartment evaporator 140 . As shown in Fig. 2 by way of example, a first end region 31 of the connecting pipe 3 adjoining the first end is through the recess 113 of the refrigerator compartment container 110 and a second end region of the connecting pipe 3 adjoining the second end is through the first recess 133 of the freezer compartment container 130 accomplished. As in Figs. 2 and 3 as an example, the connecting pipe 3 has a second pipe connecting section 35 in its second end area 32, in an area located outside the freezer compartment 131. In the figs. 2 and 3 shows by way of example that the second pipe connection section 35 is designed as an elbow, which has a straight first pipe section 35A, a second pipe section 35B running parallel thereto and an arcuate pipe section 35C connecting the first and second pipe sections 35A, 35B. The second pipe connection section 35 is generally shaped in the same way as the first pipe connection section 25 and thus has a curved course or at least one curved section.

As in Figs. 2 and 3, the first pipe joint portion 25 and the second pipe joint portion 35 are arranged parallel to each other and fixed to each other. That is, in their pipe connection sections 25, 35, the suction pipe 2 and the connecting pipe 3 run parallel to one another or overlap one another and are fastened to one another, e.g. by means of one or more fixing devices 6, which each enclose the first and the second pipe connection section 25, 35. The fixing devices 6 can be, for example, cable ties, clamps or sections of adhesive tape.

By fixing the suction pipe 2 and the connecting pipe 3 to each other in the pipe connecting portions 25, 35 having at least one curved portion, the suction pipe 2 and the connecting pipe 3 are fixed relative to each other in a stable manner. As a result, at least the suction pipe 2 and the connecting pipe 3 can be mounted in a simple manner as a prefabricated assembly on the refrigerated compartment container 110 and the freezer compartment container 130 . As shown schematically in FIG. 2 , the first supply line 4 can be designed, for example, as a capillary which extends at least in sections in contact with the suction pipe 2 . As shown in Fig. 2 by way of example, a first section of the first supply line 4 can be in contact between the first and second end regions 21, 22 of the intake manifold 2 and a second section of the first supply line 4 can be between the first and second End portion 31, 32 of the connecting tube 3 are in contact with this. Optionally, the first feed line 4 can be routed together with the connecting pipe 3 through the recess 113 of the refrigerated compartment container 110 .

The second supply line 5 can optionally also be designed as a capillary which extends at least in sections in contact with the suction pipe 2 . As shown in FIG. 2 by way of example, the second supply line 5 can extend, for example, over the entire length of the intake manifold 2 between its first and second end regions 21, 22 in contact therewith. As shown further by way of example in FIG. 2 , one end of the second supply line 5 can be inserted into the connecting pipe 3 . For example, the connecting pipe 3 can have a lateral branch portion 34 to which the end of the second supply line 5 is connected, as is shown in FIG. 2 by way of example. Since the suction pipe 2 and the connection pipe 3 are stably fixed to each other in their pipe connection portions 25, 35, buckling or other damage of the second supply pipe 5 during handling and transportation of the refrigerant pipe assembly 1 can be prevented.

As already explained and in Figs. 2 and 3 as an example, the pipe connection sections 25, 35 can be implemented as an elbow, for example. However, the pipe connecting portions 25, 35 are not limited to this. FIG. 4, for example, shows a refrigerant line arrangement 1 in which the pipe connection sections 25, 35 each have at least one bend K and a bend B. As shown by way of example in FIG. 4, it can be provided that knee K and arch B each extend in different planes.

In Fig. 5, a refrigerant line arrangement 1 is shown as an example, in which the pipe connection sections 25, 35 are designed as a loop. As shown schematically in Fig. 1, the suction pipe 2 and the connecting pipe 3 can here in their binding sections 25, 35 be circular, similar to a spiral spring, bent into a spiral with at least one winding.

In general, the pipe connection sections 25, 35 are therefore of curved design or have at least one curved section. In the simplest case, the pipe connection sections 25, 35 can thus be designed as a bend, for example.

Although the present invention has been explained above using exemplary embodiments, it is not limited to them, but can be modified in a variety of ways. In particular, combinations of the above exemplary embodiments are also conceivable.

REFERENCE MARKS

1 Refrigerant piping arrangement

2 intake manifold

3 connecting tube

4 first supply line

5 second supply line

6 fixing devices

21 first end region of the intake manifold

22 second end area of the intake manifold

25 first pipe joint section

25A, 35A first piece of pipe

25B, 35B second piece of pipe

25C, 35C third piece of pipe

31 first end portion of the connecting tube

32 second end portion of the connecting tube

34 turnoff section

35 second pipe joint section

100 chiller

110 second container / cooling compartment container

111 second cold compartment / cooling compartment

113 recess of the second container

115 Rear wall of the second container

120 second evaporator / fridge evaporator

121 Fridge evaporator inlet

122 Cooling compartment evaporator outlet

123 fan

130 first bin / freezer bin

131 first cold compartment / freezer compartment

133 first recess of the first container

134 second recess of the first container

135 Rear wall of the first container 140 first evaporator / freezer evaporator

141 Freezer evaporator inlet

142 Outlet of a freezer evaporator

150 compressors

151 Compressor input

152 Compressor output

160 condenser

161 Condenser inlet

162 Condenser outlet

170 dryers

180 valve assembly

V vertical direction

Claims

PATENT CLAIMS Refrigerant line arrangement (1) for a refrigeration device (100), having: an intake pipe

(2) having a first end region (21) which is intended for connection to an outlet (142) of a first evaporator (140) and has a curved first pipe connection section (25), and a first end region (21) for connection to an inlet (151) of a compressor ( 150) provided second end portion (22); and a connecting pipe

(3) having a first end region (31) provided for connection to an outlet (122) of a second evaporator (120) and a second end region (32) provided for connection to an inlet (141) of the first evaporator (140) which has a curved second pipe connection section (35), wherein the first pipe connection section (25) and the second pipe connection section (35) each extend parallel to one another and are fastened to one another. Refrigerant line arrangement (1) according to claim 1, additionally comprising: a first supply line (4) for connecting a condenser (160), which is connected to an outlet (152) of the compressor (150), to an inlet (121) of the second evaporator ( 120). Refrigerant line arrangement (1) according to claim 2, wherein the first supply line

(4) is designed as a capillary which extends at least in sections in contact with the suction tube (2). Refrigerant line arrangement (1) according to any one of the preceding claims, additionally comprising: a second supply line (5) for connecting the outlet (152) of the compressor (150) to the inlet (141) of the first evaporator (140), one end of the second supply line (5) opens into the connecting pipe (3).

5. refrigerant line arrangement (1) according to claim 4, wherein the second supply line (5) is designed as a capillary which extends at least partially in contact with the suction pipe (2).

6. refrigerant line arrangement (1) according to any one of the preceding claims, wherein the pipe connection sections (25; 35) are designed as an elbow.

7. refrigerant line arrangement (1) according to any one of claims 1 to 5, wherein the pipe connection portions (25; 35) are formed as a bend.

8. refrigerant line arrangement (1) according to any one of claims 1 to 5, wherein the pipe connection portions (25; 35) are formed as a loop.

9. refrigerant line arrangement (1) according to any one of claims 1 to 5, wherein the pipe connection sections (25; 35) each have at least one elbow and / or at least one bend.

10. Refrigerant line arrangement (1) according to one of the preceding claims, wherein the pipe connection sections (25; 35) are fastened to one another by means of one or more fixing devices (6), which each enclose the first and the second pipe connection section (25; 35), the one or several fixing devices (6) are realized in particular by cable ties, clamps or adhesive tape sections.

11 . Refrigerating appliance (100), in particular domestic refrigerating appliance, comprising: a first container (130) which defines a first refrigerated compartment (131) for accommodating refrigerated goods; a first evaporator (140) thermally coupled to the first refrigeration compartment (131); a second container (110) which defines a second refrigeration compartment (111) for receiving refrigerated goods; a second evaporator (120) thermally coupled to the second refrigeration compartment (111); a compressor (150) for compressing refrigerant; and 19 a refrigerant line arrangement (1) according to any one of the preceding claims, wherein the first end region (21) of the suction pipe (2) with an outlet (142) of the first evaporator (140) and the second end region (22) of the suction pipe (2) with a Input (151) of the compressor (150) is connected, and wherein the first end area (31) of the connecting pipe (3) with an output (122) of a second evaporator (120) and the second end area (32) of the connecting pipe (3) with an input (141) of the first evaporator (140); and a condenser (160) which is connected to an outlet (152) of the compressor (150) and to at least one inlet (121) of the second evaporator (120). Refrigeration appliance (100) according to claim 11, wherein the refrigerant line arrangement (1) is designed according to claim 2 or 3, and wherein the outlet (162) of the condenser (160) is connected to the inlet (121) of the second evaporator by means of the first supply line (4). (120) is connected. Refrigeration appliance (100) according to claim 12, wherein the second evaporator (120) is implemented as a finned evaporator and is arranged inside the second refrigerating compartment (111), and wherein the second container (110) has a recess (113) through which the first end region (31) of the connecting pipe (3) and the first supply line (4) are carried out. Refrigerating appliance (100) according to one of Claims 11 to 13, wherein the refrigerant line arrangement (1) is designed according to Claim 4 or 5, and wherein the inlet (141) of the first evaporator (140) is connected to the outlet (162) of the Condenser (160) is connected. Refrigeration appliance (100) according to Claim 14, in which the first evaporator (140) is implemented as a finned evaporator and is arranged inside the first refrigeration compartment (131), and in which the first container (130) has a first recess (133) through which the second end region ( 32) of the connecting pipe (3) is passed through, and has a second recess (134) through which the first end region (21) of the suction pipe (2) is passed.