Refrigeration device and method for assembling a refrigeration device

By positioning the valve in the lower, rear area of the machine room side wall and routing the suction pipe above it, the refrigeration appliance addresses the challenge of limited space in the machine room, improving installation efficiency and component accessibility.

DE102023212101B4Active Publication Date: 2025-06-12BOSCH SIEMENS HAUSGERATE GMBH
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Patent Information

Application Number
DE102023212101
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-12-01
Publication Date
2025-06-12
Estimated Expiration
2043-12-01

AI Technical Summary

Technical Problem

In household refrigeration appliances, the limited space in the machine room makes it difficult to install a valve and connect refrigerant lines efficiently, as the components need to be positioned close to the machine room boundaries.

Method used

The refrigeration appliance is designed with the valve positioned in the lower, rear area of the machine room side wall, and the suction pipe is introduced above the valve, allowing for a space-saving arrangement that facilitates easier installation and connection of components.

Benefits of technology

This design allows for a more efficient use of space in the machine room, simplifying the installation process and improving the accessibility of connection points, thereby enhancing the overall assembly and operation of the refrigeration appliance.

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Abstract

A refrigeration appliance, in particular a household refrigeration appliance, comprises a body which defines a storage compartment and a machine room, wherein the machine room is delimited by a machine room ceiling, by opposing first and second machine room side walls, and by a machine room interior wall. Furthermore, the refrigeration appliance comprises a refrigerant circuit which is designed to extract heat from the storage compartment by evaporating refrigerant and to release heat to the environment by condensing refrigerant, wherein the refrigerant circuit has a compressor positioned in the machine room for circulating the refrigerant and a valve for varying a flow rate of the condensed refrigerant. The valve is positioned in an end region of the second machine room side wall facing away from the machine room ceiling with respect to a vertical direction and facing the machine room interior wall with respect to a depth direction.A suction pipe connected to a suction connection of the compressor projects into the machine room between the machine room ceiling and the valve with respect to the vertical direction, wherein an end section of the suction pipe extending in the machine room runs at least partially along the depth direction.
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Description

TECHNICAL FIELDThe present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance such as a refrigerator, a freezer or a freezer or a combination of chill and freezers, and to a method for mounting a refrigeration appliance.PRIOR ARTIn household refrigeration appliances, a storage compartment for receiving refrigerated goods such as foods, beverages, medicines or the like is usually provided, from which heat is extracted with the aid of a refrigerant circuit. The hydraulic components of the refrigerant circuit, in particular a refrigerant compressor for circulating and compressing the refrigerant, are typically arranged in a machine space separate from the storage compartment in modern refrigeration devices. In order to be able to realize the largest possible volume of the storage compartment, it is desirable to keep the volume of the machine space as small as possible, which requires a space-saving configuration and arrangement of the components accommodated in the machine space.In order to make efficient use of the space within the machine space, it is desirable to be able to position the components positioned in the machine space as close as possible to the boundary of the machine space with respect to all spatial directions. The side walls of the machine room are generally used here in order to mount a valve there for varying the refrigerant flow rate. Furthermore, the refrigerant lines are usually introduced into the machine compartment in the region of the side wall.For example, DE 10 2022 201 627 A1 shows a refrigeration appliance having a frame heater and a side wall condenser, wherein a valve is arranged centrally on a side wall of the machine room, and end sections of pipe loops of the frame heater and of the side wall condenser and also a suction pipe running around the valve are laid on the side wall.Due to the tight space conditions, the assembly of the valve and the connection of the refrigerant lines to one another or to the compressor can be difficult.SUMMARY OF THE INVENTIONIt is one of the objects of the present invention to provide improved solutions for accommodating a valve and at least one refrigerant line in a machine compartment of a refrigeration appliance.This object is achieved according to the invention by a refrigeration appliance having the features of claim 1 and by a method having the features of claim 13.According to a first aspect of the invention, a refrigeration appliance, in particular a household refrigeration appliance, comprises a body which defines a storage compartment for receiving refrigerated goods and a machine room, wherein the machine room is delimited with respect to a vertical direction by a machine room ceiling, with respect to a transverse direction by mutually opposite first and second machine room side walls, and with respect to a depth direction by a machine room inner wall. Furthermore, the refrigeration appliance comprises a refrigerant circuit which is designed to draw heat from the storage compartment with evaporation of refrigerant and to release heat to the environment with condensation of refrigerant, wherein the refrigerant circuit has a compressor positioned in the machine compartment for circulating the refrigerant and a valve for varying a flow rate of the condensed refrigerant. The valve is positioned in an end region of the second machine space side wall which is situated away from the machine space ceiling with respect to the vertical direction and is situated facing the machine space inner wall with respect to the depth direction. An intake pipe connected to a suction connection of the compressor projects into the machine space with respect to the vertical direction between the machine space ceiling and the valve, wherein an end section of the intake pipe extending in the machine space extends at least in regions along the depth direction.According to a second aspect of the invention, a method for mounting a refrigeration appliance according to the first aspect of the invention comprises laying the suction pipe in the body and the machine room, such that the end section of the suction pipe protrudes into the machine room in an end region of the machine room side wall facing the machine room ceiling with respect to the vertical direction and runs at least in regions along the depth direction; mounting the valve on the second machine room side wall in the end region of the second machine room side wall facing away from the machine room ceiling with respect to the vertical direction and facing the machine room inner wall with respect to the depth direction, mounting the compressor in the machine room and connecting the suction pipe to the suction connection of the compressor.An idea on which the invention is based is to position a valve, which is incorporated into a cold side of the refrigerant circuit, in the lower, rear region of an engine compartment side wall and to introduce a suction pipe, through which the compressor draws vapor refrigerant, into the engine compartment above the valve. This facilitates the assembly of the refrigeration appliance, since the front region of the machine space side wall facing away from the machine space inner wall is completely available for the installation of lines, in particular the suction pipe. Furthermore, the connection of the suction pipe to the suction connection of the compressor can take place in the front region of the machine compartment.The machine room is delimited with respect to the transverse direction by a first machine room side wall and a second machine room side wall opposite the latter. The machine room side walls each extend in a depth direction running transversely to the transverse direction. A machine room inner wall extends in the transverse direction between the machine room side walls, and a machine room ceiling defines the machine room with respect to a vertical direction extending transversely to the depth and transverse directions and extends between upper end portions of the machine room side walls. The valve is thus positioned in a lower end region situated away from the machine room ceiling and adjacent to the machine room inner wall. The valve can have, for example, an inlet and one or more outlets, to each of which a capillary line is connected. The valve may generally be configured to vary a flow of refrigerant through the conduits connected to the outlet or through the conduits connected to the outlets. The valve can be designed, for example, as a shut-off valve or as a rotary slide valve.The suction pipe protrudes with an end region in an upper region of the machine room into the same, i.e. it is positioned between the valve and the machine room ceiling with respect to the vertical direction. Here, the end portion of the suction pipe extends from a rear portion of the machine room along the depth direction into the front portion of the machine room with respect to the depth direction, thereby further facilitating assembly.Advantageous embodiments and refinements emerge from the dependent claims which refer back to the independent claims in conjunction with the description.According to some embodiments, it can be provided that the refrigeration appliance is a refrigerator, a freezer or a freezer or a combination of cool and freeze.According to some embodiments, it can be provided that the end section of the suction pipe extends from an end region of the machine room facing the machine room inner wall with respect to the depth direction as far as an end region of the machine room facing away from the machine room inner wall with respect to the depth direction. Optionally, the end section of the suction pipe extends from the end region of the machine chamber facing the machine chamber inner wall as far as into the end region situated facing away from the machine chamber inner wall in relation to the transverse direction in the region of the second side wall. A space-saving course of the suction pipe in the machine room is thus achieved.According to some embodiments, it can be provided that the suction pipe is inserted into the machine room in the region of the machine room inner wall with respect to the depth direction, e.g. through an opening in the machine room ceiling or in the machine room inner wall.According to some embodiments, it can be provided that the suction pipe is inserted into the machine room in the region of the second machine room side wall with respect to the transverse direction, e.g. through an opening in the machine room ceiling or in the machine room inner wall.According to some embodiments, it can be provided that at least the end section of the suction pipe is designed as an aluminum pipe, and that the end section is connected, in particular soldered, at a connection point to a copper pipe connected to the suction connection of the compressor, wherein the connection point is situated at the same level with respect to the vertical direction with the valve or between the valve and the machine room ceiling. The copper pipe thus extends with respect to the vertical direction exclusively below or on a side of the aluminum pipe facing away from the machine room ceiling. Since the refrigeration appliance is usually set up in the intended use such that the vertical direction runs along the direction of gravity, in the case of condensate formation at the suction pipe the condensate can run off or be conducted away from the aluminium pipe better. This reduces the risk of corrosion.According to some embodiments, it can be provided that the storage compartment is bounded by an inner container surrounded by an insulating foam, wherein the suction tube runs partially in the foam insulation. The method for mounting the refrigeration appliance can accordingly additionally comprise foaming the inner container with the insulating foam after the installation of the suction pipe, wherein during the foaming the machine room ceiling is supported by a support tool positioned in the machine room, which is removed again from the machine room after the foaming. During the foaming process, the inner container can support the machine room ceiling. This requires the machine space to be substantially empty. At the same time, however, the suction pipe runs within the foam layer to be produced and therefore has to be laid beforehand. In particular, if the suction pipe is inserted into the machine space or projects into the machine space in the region of the second machine space side wall with respect to the transverse direction, the suction pipe can be positioned on the second side wall in a space-saving manner during foaming. The valve is preferably mounted after the encapsulation by foaming.According to some embodiments, it may be provided that the refrigerant circuit comprises a side wall condenser integrated into a side wall of the body, and a frame heater arranged at a front side of the body, wherein the side wall condenser comprises a first pipe loop whose end portions on the second machine room side wall project into the machine room, wherein the frame heater comprises a second pipe loop whose end portions on the second machine room side wall project into the machine room, wherein the end portions of the first and the second pipe loop are connected to each other and neither of the end portions extends between the machine room inner wall and the valve with respect to the depth direction. The frame heating and the side wall condenser can be connected in series hydraulically in particular. An end portion of a first conduit of the frame heater is therefore connected to a first end portion of a conduit of the side wall condenser, and an end portion of a second conduit of the frame heater is therefore connected to a second end portion of the conduit of the side wall condenser. The conduit tube of the side wall condenser extends within a side wall of the body and can be connected in particular to an outer skin of the body in a thermally conductive manner. The line pipes of the frame heating run on a front side of the refrigeration appliance, in particular along a periphery of an access opening of the body, through which the storage compartment is accessible. The end sections of the tubes that project into the machine chamber on the second machine chamber side wall are mutually connected and all run in front of or above the valve on the second machine chamber side wall. This facilitates the connection of the end portions of the tubes, since the joints are thus more easily accessible.According to some embodiments, it can be provided that the end sections extend with respect to the vertical direction between the machine room ceiling and the valve and / or with respect to the depth direction between an end of the second side wall, which end is situated away from the machine room inner wall, and the valve.According to some embodiments, it can be provided that the end sections are connected to one another, in particular soldered, at connection points which are positioned in an end region of the second machine space side wall which is situated away from the machine space inner wall with respect to the depth direction. As a result, the connection points are very easily accessible, which further facilitates assembly.According to some embodiments, it can be provided that the end sections extend parallel to the second machine room side wall. This realizes an even more space-saving arrangement of the pipe ends in the machine space.According to some embodiments, it can be provided that the refrigerant circuit has a capillary line arrangement connected to the valve, with a capillary coil connected to the valve, which capillary coil is connected to the suction pipe in a thermally conductive manner and is arranged on the second machine space side wall with respect to the vertical direction between the valve and the machine space ceiling. Since the valve is positioned in a lower end region of the machine space side wall, which end region is remote from the machine space ceiling, the capillary coil can be positioned above it without problems and in a space-saving manner. This also facilitates assembly further.According to some embodiments, it can be provided that the refrigeration appliance has an evaporation tray arranged in the machine room for receiving condensate from the storage compartment, which evaporation tray is positioned between the compressor and the machine room ceiling with respect to the vertical direction and extends in the transverse direction at least towards a region facing the machine room inner wall as far as the second machine room side wall. The evaporation tray can be positioned on the compressor or connected to it, for example. Since the valve is positioned in a lower end region of the machine space side wall, which end region is remote from the machine space ceiling, the evaporation tray can be extended in the direction of the second machine space side wall.The features and advantages disclosed herein in connection with one aspect of the invention are also disclosed for the respective other aspect and vice versa.BRIEF DESCRIPTION OF THE DRAWINGSThe invention is explained below with reference to the figures of the drawings. Of the figures, FIG. 1 shows a simplified, schematic sectional view of a refrigeration appliance according to an exemplary embodiment of the invention; FIG. 2 shows a perspective partial view of a refrigeration appliance according to an exemplary embodiment of the invention in the region of a side wall of a machine compartment; FIG. 3 is a plan view of the side wall of the machine room from FIG. 2, with the valve shown in FIG. 2 omitted; and FIG. 4 shows a simplified perspective illustration of a refrigeration appliance according to a further exemplary embodiment of the invention; FIG. 5 shows a schematic illustration of a refrigerant circuit of a refrigeration appliance according to a further exemplary embodiment of the invention; and FIG. 6 shows a flow diagram of a method for mounting a refrigeration appliance according to an exemplary embodiment of the invention.In the figures, the same reference numerals designate identical or functionally identical components, unless indicated to the contrary.DETAILED DESCRIPTION OF EMBODIMENTSFIG. 1 shows, by way of example, a refrigeration appliance 100 in the form of a refrigerator. However, the invention is not limited to this, but the refrigeration appliance can also be a refrigeration-freezing combination or a freezer or a freezer or generally a domestic refrigeration appliance.As schematically shown in FIG. 1, the refrigeration appliance 100 has a body 110, a refrigerant circuit 4 and optionally also an evaporation tray 6.The body 110 can have the shape of a cuboid, for example, as schematically shown in FIG. 1. As shown by way of example in FIG. 1, the body 110 can have an inner container 1, a base housing 115 and a foam insulation 3.The inner container 2 defines or delimits a storage compartment 10 for receiving cooled items, such as food, beverages, medicines or the like. As schematically shown in FIG. 4, the body 110 can have an access opening 111, through which the storage compartment 10 is accessible. On the body 110, on the front side on which the access opening 111 is formed, a door (not shown) may be supported to close or release the access opening 111. The inner container 1 is surrounded by the foam insulation 3 and is thereby thermally insulated.The base housing 115 defines a machine room 2. the machine room 2 is delimited with respect to a vertical direction V by a machine room ceiling 20 and optionally additionally by a machine room floor 24, which is arranged opposite the machine room ceiling 20. With respect to a transverse direction C extending transversely to the vertical direction V, the machine room 2 is bounded by mutually opposite first and second machine room side walls 21, 22, wherein the machine room floor 24 and the machine room ceiling 20 extend in the transverse direction C between the machine room side walls 21, 22. The machine room side walls 21, 22 in turn extend in the vertical direction V and in a depth direction T extending transversely to the vertical direction V and to the transverse direction C. With respect to the depth direction T, the machine room 2 is bounded by a machine room inner wall 23 which extends in the transverse direction C between the machine room side walls 21, 22. The machine room 2 can have a machine room opening 24, which is bounded by the side walls 21, 22, the machine room ceiling 20 and, if appropriate, the machine room floor 24.The refrigerant circuit 4 is only schematically illustrated in FIG. 1 and is generally designed to draw heat from the storage compartment 10 while evaporating refrigerant and to release heat to the environment while condensing refrigerant. As shown in FIG. 1, the refrigerant circuit 4 includes an evaporator 41 thermally coupled to the storage compartment 10, a condenser 43 thermally coupled to the outside, a compressor 42, and a valve 44. Optionally, the refrigerant circuit 4 can additionally have a side wall condenser 45 and a frame heater 46, as is schematically shown in FIGS. 4 and 5.The compressor 42 is positioned in the machine room 2 and has a suction connection 42A and a pressure connection 42B, wherein the compressor 42 is designed to suck in gaseous refrigerant at the suction connection 42A, compress it and expel it at the pressure connection 42B. As shown in FIGS. 1 and 5, the evaporator 41 is connected to the suction port 42A of the compressor 42 through a suction pipe 50.The condenser 43 is connected to the pressure port 42B of the compressor 42. As shown in FIG. 1 by way of example, the condenser 43 can be arranged, for example, in the machine room 1. Optionally, the condenser 43 can be positioned in the machine room 2 together with a fan 49, which is designed to transport an air flow over or through the condenser 49 in order to promote the heat emission to the environment. The condenser 43 may be, for example, an MCHE condenser or generally a compact condenser. The condenser 43 is connected to the evaporator 41 via a capillary line arrangement 46, wherein the capillary line arrangement or an additional throttle valve (not shown) acts as a throttle in order to expand the refrigerant at least partially condensed in the condenser 43.As shown schematically in Figure 1, valve 44 is connected by a first capillary line 48A to condenser 46 and by a second capillary line 48B to evaporator 41. The valve 44 may be, for example, a check valve configured to stop or allow refrigerant to flow through the capillary conduits 48A, 48B. Alternatively, the valve 44 can also be designed as a regulating valve which is designed to set different flow rates. It is furthermore conceivable for the refrigerant circuit 4 to have a plurality of evaporators 41, each of which is connected to the valve 44 by a capillary line, wherein the valve 44 can be configured to vary an inflow of refrigerant into each of the evaporators 41. In this case, the valve 44 can be designed as a rotary slide valve. Generally, the valve 44 is configured to vary a flow rate of condensed refrigerant.As further shown in FIG. 5, optional sidewall condenser 45 and optional frame heater 46 may be connected in series with condenser 43. The sidewall condenser 45 may include a first tube loop 55 having a tube extending in a sidewall 112 of the body 100. This tube is in thermally conductive contact with a casing (not shown) of the body, whereby the large surface area of the side wall 112 can be used for heat dissipation to the environment.The frame heater 46 may include a second tube loop 56 having a first tube 46A and a second tube 46B. As schematically shown in FIG. 4, the first and the second tube 46A, 46B can be laid on the front side of the body 110, in particular in such a way that together they at least partially, optionally substantially completely enclose the access opening 111. For example, as shown in FIG. 5, the first pipe 46A may be connected to the pressure port 42B of the compressor 42. A first pipe end 55A of the first pipe loop 55 of the sidewall condenser 45 may be connected to a pipe end 56A of the first pipe 56. A second tube end 55B of the first tube loop 55 of the sidewall condenser 45 may be connected to a tube end 56B of the second tube 46B of the frame heater 46, which in turn is connected to the condenser 43. Alternatively, the condenser 43 may be connected between the compressor 42 and the first pipe 46B of the frame heater 46.As is illustrated in FIG. 2 by way of example, the valve 44 is positioned in an end region of the second machine space side wall 22 which is situated facing away from the machine space ceiling 20 with respect to the vertical direction V and faces the machine space inner wall 23 with respect to the depth direction T. Illustratively, the valve 44 is positioned in the region of the corner formed by the second machine compartment side wall 22 and the machine compartment rear wall 23, close to the machine compartment floor 24. As shown in FIGS. 2 and 3 by way of example, the valve 44 may be attached to the second machine compartment side wall 22. For example, a fastening structure 7 can be provided on the second machine space side wall 22, which fastening structure can have, for example, a plurality of pins 71 protruding from the second machine space side wall 22 in the transverse direction C, as shown by way of example in FIG. 3. The valve 44 can have a flange 72, which can be fixed to the pins 71, for example in a form-fit and / or force-fit manner.As is also shown in FIGS. 2 and 3, the suction pipe 50 protrudes with an end section 51 into the machine chamber 2. A main section 54 of the suction pipe 50 running outside the machine room 2 can run at least partially inside the foam insulation 3. As shown in FIGS. 2 and 3, the end section 51 of the suction pipe 50 is arranged between the machine room ceiling 23 and the valve 44 with respect to the vertical direction V and extends at least in sections along the depth direction T. The suction pipe 50 thus generally protrudes into the machine room 2 through an opening 26 which is formed between the valve 44 and the ceiling 20 or in the ceiling 20 with respect to the vertical direction V. For example, the suction pipe 50 can be introduced into the machine room 2 in the region of the machine room inner wall 23 with respect to the depth direction T, e.g. through an opening 26 in the machine room inner wall, as shown by way of example in FIGS. 2 and 3, or through an opening in the machine room ceiling 20. In general, the end section 51 of the suction pipe 50 can extend from an end region of the machine room 2 facing the machine room inner wall 23 with respect to the depth direction T into an end region of the machine room 2 facing away from the machine room inner wall 23 with respect to the depth direction T, i.e. directly adjacent to the machine room opening 25.As schematically shown in FIGS. 2 and 3, the end section 51 of the suction pipe 50 can have a knee or an arc section 51A, which connects a first linear section 51B facing the machine room inner wall 23 and extending along the depth direction T to a second linear section 51C extending along the vertical direction V.The suction pipe 50 may be connected to the suction port 42A of the compressor 42 via a connection pipe 53 connected to, e.g., brazed to, the end of the suction pipe 50 at a connection point 42. The connecting pipe 53 can be in particular a copper pipe, while the suction pipe 50 or at least its end section 51 can optionally be an aluminum pipe. As shown in FIG. 2, the joint 52 may be located between the valve 44 and the engine room ceiling 20 with respect to the vertical direction V or may be level with the valve 44. In general, the connecting pipe 53 therefore extends only below the end portion 51 of the suction pipe 50 with respect to the vertical direction V. In the case of condensate formation at the end portion 51 of the suction pipe, the condensate can thus run off better from the end portion 51 formed from aluminum, which reduces the risk of corrosion. Since the connecting point 52 is arranged in the region of the machine space opening 25 and is not positioned below the valve 44 with respect to the vertical direction, the connecting point 52 is easily accessible, which facilitates assembly.As is also shown in FIGS. 2 and 3, end sections 55A, 55B of the first pipe loop 55 of the side wall condenser 45 on the second machine room side wall 22 protrude into the machine room 2. As shown in FIG. 3 by way of example, the end sections 55A, 55B of the first pipe loop 55 can be laid running parallel to one another in an S shape along the second machine room side wall 22, wherein linear sections extending along the vertical direction V are provided in an end region facing the machine room opening 25, said sections forming the end of the first pipe loop 55. End portions 56A, 56B of the second pipe loop 56 or of the first and second pipes 46A, 46B of the optional frame heater 46 likewise protrude into the machine room 2 on the second machine room side wall 22. As shown in FIG. 3, the end portions 56A, 56B of the second pipe loop 56 may project into the machine room 2 with respect to the depth direction T, for example, between the end portions 55A, 55B of the first pipe loop 55 and the machine room inner wall 23. As also shown in FIG. 3, the end sections 56A, 56B of the second pipe loop 56 can be laid running parallel to one another along the second machine room side wall 22 in the direction of the machine room opening 25, for example in a U-shape, wherein linear sections extending along the vertical direction V are provided in the end region facing the machine room opening 25, which sections are positioned in alignment with the linear sections of the end sections 55A, 55B of the first pipe loop 55. The end portions 55A, 55B, 56A, 56B may extend parallel to the second machine compartment sidewall 22. For example, the end sections 55A, 55B, 56A, 56B within the machine room 2 can all be arranged in one plane. In general, a space-saving arrangement is thereby achieved.The end portions 55A, 55B, 56A, 55B of the first and second pipe loops 55, 56 are connected to each other, e.g. soldered, at connection points 57A, 57B. As can be seen easily in FIG. 3, these connection points 57A, 57B can be positioned in an end region of the second machine space side wall 22, which end region is situated away from the machine space inner wall 23 with respect to the depth direction T, that is to say in the region of the machine space opening 25, and are therefore easily accessible. As further shown in FIGS. 2 and 3, the end portions 55A, 55B, 56A, 56B extend only above and forward of the valve 44 with respect to the depth direction T and the vertical direction V. The end sections 55A, 55B, 56A, 55B can extend, with respect to the vertical direction V, for example between the machine room ceiling 20 and the valve 44 and / or, with respect to the depth direction T, between the end of the second machine room side wall 22 situated away from the machine room inner wall 23 and the valve 44. Generally, none of the end portions 55A, 55B, 56A, 56B extends between the engine room inner wall 23 and the valve 44 with respect to the depth direction T. This facilitates both the assembly of the valve 44 to the second engine room side wall 22 and the joining of the end portions 55A, 55B, 56A, 56B.As is also shown in FIGS. 2 and 3, a capillary line connected to the valve 44, for example the capillary line 48B leading from the valve 44 to the evaporator 41, can be wound up in the machine space 2 to form a capillary coil 48C. This is connected to the intake pipe 50 in a thermally conductive manner, for example in order to form an intake throttle tube heat exchanger, and is arranged on the second machine space side wall 22 between the valve 44 and the machine space ceiling 20 with respect to the vertical direction V. As further shown in FIGS. 2 and 3, the capillary coil 48C may optionally be positioned between the end portion 51 of the suction tube 50 and the valve 44.The evaporation tray 6 serves to receive condensate from the storage compartment 10 and is arranged in the machine compartment 2. As schematically shown in FIG. 1, the evaporative shell 6 may be positioned, for example, on the compressor 42. Generally, the evaporation tray 6 is positioned between the compressor 44 and the engine room ceiling 20 with respect to the vertical direction V. As is only schematically shown in FIG. 1, the evaporation tray 4 can also be positioned between the valve 44 and the machine room ceiling 20 with respect to the vertical direction V. Due to the arrangement of the valve 44 in the end region of the second side wall 22 which is situated away from the machine room ceiling 20 with respect to the vertical direction V, the evaporation tray 6 can extend in the transverse direction C as far as the second machine room side wall 22, at least one region which is situated facing the machine room inner wall 23.FIG. 6 schematically shows the sequence of a method M for mounting a refrigeration appliance 100, which is described below with reference to the refrigeration appliance 100 described above.In a step M 1, the suction pipe 50 is laid in the body 110 and the machine room 2, so that the end section 51 of the suction pipe 50 projects into the machine room 2 in an end region of the machine room side wall 22 facing the machine room ceiling 20 with respect to the vertical direction V and runs at least in regions along the depth direction T. For example, the suction pipe 50 can be passed through the opening 26. If appropriate, in step M 1, the end sections 55A, 55B, 56A, 56B of the tubular loops 55, 56 of the optional side wall condenser 45 and of the optional frame heater 46 can also be laid in the body 110 and in the machine room 2, such that the end sections 55A, 55B, 56A, 56B on the second machine room side wall 22 project into the machine room 2. The end sections 55A, 55B, 56A, 56B can likewise be joined, for example by soldering, in step M 1.In an optional step M 2, which takes place after the laying M 1 of the suction pipe 50 and optionally of the optional pipe loops 55, 56, the inner container 1 is foam-covered with the insulating foam. Prior to this step M 2, a support tool (not shown), e.g. in the form of a block or a frame, may be positioned in the machine room 2 supporting the machine room ceiling 20 with respect to the vertical direction V. Thereby, the machine room ceiling 20 is supported during foaming. After the encapsulation with foam, the support tool is removed from the machine room 2 again.In step M 3, the valve 44 is mounted M 3 on the second machine space side wall 22 in the end region of the second machine space side wall 22 that is situated facing away from the machine space ceiling 20 with respect to the vertical direction V and facing the machine space inner wall 23 with respect to the depth direction T. For example, the valve 44 can be fixed to the fastening structure 7, e.g. by the flange 72 being connected to the pins 71 in a positive-locking and / or non-positive-locking manner.In step M 4, the compressor 41 is mounted in the machine room 2, and optionally, in step M 4, the condenser 43, which may be provided in the machine room 2, may also be mounted, optionally together with the fan 49. For example, it can be provided that the compressor 41 and the condenser 43 and the fan 49 are mounted on the machine room floor 24 outside the machine room 2 and are pushed into the machine room 2 along the depth direction T on the machine room floor 24.In step M 5, the suction pipe 50 is connected to the suction port 42A of the compressor 42, for example, by connecting, in particular brazing, the connection pipe 53 to the end portion 51 of the suction pipe 51. In step M 5, the capillary tubes 48A, 48B can also be connected to the valve 44.Although the present invention has been explained above by way of example with reference to exemplary embodiments, it is not restricted thereto, but can be modified in a variety of ways. In particular, combinations of the above exemplary embodiments are also conceivable.REFERENCE NUMERALS1 Inner container 2 machine compartment 3 foam insulation 4 refrigerant circuit 6 evaporation shell 7 fastening structure 10 storage compartment 20 machine compartment ceiling 21 first machine compartment side wall 22 first machine compartment side wall 23 machine compartment ceiling 24 machine compartment floor 25 machine compartment opening 26 opening 41 evaporator 42 compressor 42A suction connection 42B pressure connection 43 condenser 44 valve 45 side wall condenser 46 frame heater 46A first tube of frame heater 46B second tube of frame heater 48 capillary line arrangement 48A first capillary line 48B second capillary line 48C capillary coil 49 fan 50 suction tube 51 end portion of suction tube 51A curved portion / knee 51B first linear portion 51C second linear portion 52 connection point 53 connection tube 54 main portion of suction tube 55 first tube loop 55A, 55 bend section of the first pipe loop 56 second pipe loop 56A, 56B end section of the second pipe loop 100 refrigeration appliance 110 carcass 111 access opening 112 side wall of the carcass M method M 1-M 5 method steps

Claims

Refrigeration appliance (100), in particular a domestic refrigeration appliance, comprising: a body (110) which defines a storage compartment (10) for receiving cooled goods and a machine room (2), wherein the machine room (2) is delimited with respect to a vertical direction (V) by a machine room ceiling (20), with respect to a transverse direction (C) by mutually opposite first and second machine room side walls (21, 22), and with respect to a depth direction (T) by a machine room inner wall (23); and a refrigerant circuit (4) configured to draw heat from the storage compartment (10) while evaporating refrigerant and to release heat to the environment while condensing refrigerant, wherein the refrigerant circuit (4) includes a compressor (42) positioned in the engine room (2) for circulating the refrigerant and a valve (44) for varying a flow rate of the condensed refrigerant; characterized in that the valve (44) is positioned in an end region of the second machine space side wall (22), which end region is situated facing the machine space inner wall (23) with respect to the vertical direction (V) away from the machine space ceiling (20) and with respect to the depth direction (T), a suction pipe (50) connected to a suction connection (42A) of the compressor (42) projects into the machine space (2) with respect to the vertical direction (V) between the machine space ceiling (23) and the valve (44), and an end section (51) of the suction pipe (50), which end section extends in the machine space (2), runs at least in regions along the depth direction (T).Refrigeration appliance (100) according to claim 1, wherein the end section (51) of the suction pipe (50) extends from an end region of the machine compartment (2) facing the machine compartment inner wall (23) with respect to the depth direction (T) as far as an end region of the machine compartment (2) lying away from the machine compartment inner wall (23) with respect to the depth direction (T).Refrigeration appliance (100) according to claim 1 or 2, wherein the suction pipe (50) is inserted into the machine room (2) in the region of the machine room inner wall (23) with respect to the depth direction (T).Refrigeration appliance (100) according to one of the preceding claims, wherein the suction pipe (50) is inserted into the machine compartment (2) in the region of the second machine compartment side wall (22) with respect to the transverse direction (C).Refrigeration appliance (100) according to one of the preceding claims, wherein at least the end section (51) of the suction pipe (50) is designed as an aluminium pipe, and wherein the end section (51) is connected, in particular soldered, at a connection point (52) to a copper pipe (53) connected to the suction connection (42A) of the compressor (42), wherein the connection point (52) is situated at the same level with the valve (44) or between the valve (44) and the machine room ceiling (20) with respect to the vertical direction (V).Refrigeration appliance (100) according to one of the preceding claims, wherein the storage compartment (10) is bounded by an inner container (1) surrounded by an insulating foam (3), and wherein the suction tube (50) runs partially in the foam insulation (3).Refrigeration appliance (100) according to one of the preceding claims, wherein the refrigerant circuit (4) has a side wall condenser (45) integrated into a side wall (111, 112) of the body (110), and a frame heater (46) arranged on a front side of the body (110), wherein the side wall condenser (45) has a first pipe loop (55), the end sections (55A, 55B) of which on the second machine space side wall (22) project into the machine space (2), wherein the frame heater (46) has a second pipe loop (56), the end sections (56A, 56B) of which on the second machine space side wall (22) project into the machine space (2), wherein the end sections (55A, 55B, 56A, 55B) of the first and the second pipe loop (55, 55, 56) are connected to each other, and none of the end portions ( 55A, 55B, 56A, 56B) with respect to the depth direction (T) extends between the engine room inner wall ( 23) and the valve ( 44).Refrigeration appliance (100) according to claim 7, wherein the end sections (55A, 55B, 56A, 55B) extend in relation to the vertical direction (V) between the machine room ceiling (20) and the valve (44) and / or in relation to the depth direction (T) between an end of the second side wall (22), which is situated away from the machine room inner wall (23), and the valve (44).Refrigeration appliance (100) according to claim 7 or 8, wherein the end sections (55A, 55B, 56A, 56B) are connected to one another, in particular soldered, at connection points (57A, 57B), which are positioned in an end region of the second machine space side wall (22), which end region is situated away from the machine space inner wall (23) with respect to the depth direction (T).Refrigeration appliance (100) according to one of claims 7 to 9, wherein the end sections (55A, 55B, 56A, 56B) extend parallel to the second machine compartment side wall (22).Refrigeration appliance (100) according to one of the preceding claims, wherein the refrigerant circuit (4) has a capillary line arrangement (48) connected to the valve (44), having a capillary coil (48C) connected to the valve (44), which capillary coil is connected in a thermally conductive manner to the suction pipe (50) and is arranged on the second machine space side wall (22) with respect to the vertical direction (V) between the valve (44) and the machine space ceiling (20).Refrigeration appliance (100) according to one of the preceding claims, additionally comprising: an evaporation tray (6) arranged in the machine room (2) for receiving condensate from the storage compartment (10), which is positioned with respect to the vertical direction (V) between the compressor (44) and the machine room ceiling (20) and extends in the transverse direction (C) at least to a region facing the machine room inner wall (23) as far as the second machine room side wall (22).Method (M) for mounting a refrigeration appliance (100) according to one of the preceding claims, comprising: laying (M1) the suction pipe (50) in the body (110) and the machine room (2) such that the end section (51) of the suction pipe (50) projects into the machine room (2) in an end region of the machine room side wall (22) facing the machine room ceiling (20) with respect to the vertical direction (V) and runs at least in regions along the depth direction (T); mounting (M3) the valve (44) on the second machine room side wall (22) in the end region of the second machine room side wall (22) facing the machine room ceiling (20) with respect to the vertical direction (V) and facing the machine room inner wall (23) with respect to the depth direction (T); mounting (M4) the compressor (41) in the machine room (2); and connecting (M5) the suction pipe (50) to the suction port (42A) of the compressor (42).Method (M) according to Claim 13 with reference back to Claim 6, additionally comprising: foaming (M2) the inner container (1) with the insulating foam after the installation (M1) of the suction pipe (50), wherein, during the foaming (M2), the machine room ceiling (20) is supported by a supporting tool positioned in the machine room (2), which is removed again from the machine room (2) after the foaming (M2).

Citation Information

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