Refrigeration appliance and method for assembling a refrigeration appliance

By positioning the valve in the lower rear part of the machine space side wall in the refrigeration appliance and introducing the suction pipe above the valve, the assembly problem of valve and refrigerant pipeline in a narrow space is solved, achieving more efficient space utilization and convenient connection.

CN122295548APending Publication Date: 2026-06-26BSH HAUSGERATE GMBH
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Patent Information

Application Number
CN202480075739.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-01
Filing Date
2024-11-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In refrigeration appliances, the assembly of valves and refrigerant lines is difficult due to limited space, especially in machine space where efficient arrangement and connection are challenging.

Method used

The valve is positioned in the lower rear area of ​​the side wall of the machine space. The suction pipe is introduced into the machine space above the valve. The compressor draws in vaporized refrigerant through the suction pipe. The connection between the suction pipe and the compressor is made in the front area of ​​the machine space, achieving a space-saving arrangement.

Benefits of technology

It simplifies the assembly process of refrigeration appliances, reduces the risk of corrosion, and improves the convenience of connection and space utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A refrigeration appliance (100), particularly a household refrigeration appliance, comprising: a housing (110) defining a storage compartment (10) for accommodating cooled items and a machine space (2), wherein the machine space (2) is defined about the vertical direction (V) by a top (20) of the machine space, about the lateral direction (C) by opposing first and second machine space sidewalls (21, 22) and about the depth direction (T) by an inner wall (23) of the machine space; and a refrigerant circuit (4) configured to extract heat from the storage compartment (10) in the event of refrigerant vaporization and to release heat to the environment in the event of refrigerant condensation, wherein the refrigerant circuit (4) has a location in the machine space (110) 2) The compressor (42) for circulating the refrigerant and the valve (44) for changing the flow rate of the condensed refrigerant; characterized in that the valve (44) is located in the end region of the second machine space sidewall (22) facing away from the top (20) of the machine space with respect to the vertical direction (V) and facing the inner wall (23) of the machine space with respect to the depth direction (T), the suction pipe (50) connected to the suction end (42A) of the compressor (42) protrudes into the machine space (2) between the top (23) of the machine space and the valve (44) with respect to the vertical direction (V), and the end section (51) of the suction pipe (50) extending in the machine space (2) extends at least regionally along the depth direction (T).
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Description

Technical Field

[0001] This invention relates to a refrigeration appliance, particularly a household refrigeration appliance, such as a refrigerator, freezer, or freezer box or a cooling and freezing combination, and to a method for assembling the refrigeration appliance. Background Technology

[0002] In household refrigeration appliances, storage compartments are typically provided to hold refrigerated items, such as food, beverages, medicines, or the like, from which heat is extracted via a refrigerant circuit. The hydraulic components of the refrigerant circuit, particularly the refrigerant compressor for circulating and compressing the refrigerant, are typically housed in a separate machine space relative to the storage compartments in modern refrigeration appliances. To achieve the largest possible volume for the storage compartments, it is desirable to keep the machine space as small as possible, which requires space-saving design and arrangement of the components housed within that machine space.

[0003] To make efficient use of space within the machine space, it is desirable to position components as close as possible to the boundaries of the machine space in all spatial directions. Here, the side walls of the machine space are typically used to mount valves for changing refrigerant flow. Furthermore, refrigerant piping is usually introduced into the machine space from the areas of the side walls.

[0004] For example, DE 10 2022 201 627 A1 shows a refrigeration appliance having a frame heating device and a sidewall liquefier, wherein a valve is centrally located on the sidewall of the machine space, and the end sections of the pipe return lines of the frame heating device and the sidewall liquefier, as well as the suction pipe, are arranged around the valve on the sidewall.

[0005] Due to the limited space, valve assembly and the connection of refrigerant lines to each other or to the compressor can become difficult. Summary of the Invention

[0006] The objective of this invention is to provide an improved solution for accommodating valves and at least one refrigerant line in the machine space of a refrigeration appliance.

[0007] According to the present invention, this task is accomplished by a refrigeration appliance having the features of claim 1 and by a method having the features of claim 13.

[0008] According to a first aspect of the invention, a refrigeration appliance, particularly a household refrigeration appliance, includes a housing defining a storage compartment for accommodating cooled items and a machine space, wherein the machine space is defined vertically by a top boundary, laterally by opposing first and second sidewalls, and depth-wise by an inner wall. Furthermore, the refrigeration appliance includes a refrigerant circuit configured to extract heat from the storage compartment in the event of refrigerant vaporization and to release heat to the environment in the event of refrigerant condensation, wherein the refrigerant circuit has a compressor located within the machine space for circulating the refrigerant and a valve for changing the flow rate of the condensed refrigerant. The valve is located in an end region of the second machine space sidewall, vertically away from the top boundary and depth-wise facing the inner wall. A suction pipe, connected to a suction end of the compressor, extends vertically into the machine space between the top boundary and the valve, wherein the end section of the suction pipe extending into the machine space extends at least partially along the depth direction.

[0009] According to a second aspect of the invention, a method for assembling a refrigeration appliance according to a first aspect of the invention comprises: arranging a suction pipe in a housing and a machine space such that an end section of the suction pipe protrudes into the machine space in an end region of a side wall of the machine space facing the top of the machine space in the vertical direction and extends at least partially along the depth direction; assembling a valve on a side wall of the second machine space in an end region of the side wall of the second machine space facing away from the top of the machine space in the vertical direction and facing the inner wall of the machine space in the depth direction; assembling a compressor in the machine space; and connecting the suction pipe to a suction terminal of the compressor.

[0010] The concept upon which this invention is based is to position the valve on the cold side of the refrigerant circuit in the lower rear region of the machine space sidewall, and to introduce a suction pipe into the machine space above the valve, through which the compressor draws in vaporized refrigerant. This facilitates the assembly of refrigeration appliances because the front region of the machine space sidewall, away from the inner wall of the machine space, is entirely provided for laying piping, especially the suction pipe. Furthermore, the connection between the suction pipe and the compressor's suction connection can be made in the front region of the machine space.

[0011] The machine space is laterally defined by a first machine space sidewall and a second machine space sidewall opposite to the first machine space sidewall. The machine space sidewalls extend in a depth direction that extends laterally to the lateral direction. The machine space inner wall extends laterally between the machine space sidewalls, and the machine space top defines the machine space vertically and extends between the upper end regions of the machine space sidewalls, which extend laterally to the depth direction and laterally to the lateral direction. Therefore, the valve is positioned in the lower end region opposite the top of the machine space and adjacent to the machine space inner wall. The valve may, for example, have an inlet and one or more outlets, with capillary lines attached to each outlet. Generally, the valve can be configured to change the refrigerant flow rate through lines attached to one outlet or through lines attached to multiple outlets. The valve can be configured, for example, as a shut-off valve or a rotary slide valve.

[0012] The suction tube extends into the upper region of the machine space with its end section protruding into the machine space, that is, the suction tube is positioned vertically between the valve and the top of the machine space. Here, the end section of the suction tube extends from the rear region of the machine space along the depth direction to the front region of the machine space, thereby further facilitating assembly.

[0013] Advantageous configurations and extensions are derived from the dependent claims that reference the independent claims in conjunction with the specification.

[0014] According to some implementation methods, the refrigeration appliance can be a refrigerator, freezer, freezer box, or a cooling and freezing combination.

[0015] According to some embodiments, the end section of the suction tube can be configured to extend from an end region facing the inner wall of the machine space in the depth direction to an end region of the machine space away from the inner wall of the machine space in the depth direction. Optionally, the end section of the suction tube extends from the end region facing the inner wall of the machine space in the lateral direction into a region of a second side wall until it reaches an end region away from the inner wall of the machine space. This achieves a space-saving orientation of the suction tube within the machine space.

[0016] According to some implementations, the suction tube can be introduced into the machine space in the region of the inner wall of the machine space with respect to depth, for example, through an opening in the top of the machine space or an opening in the inner wall of the machine space.

[0017] According to some implementations, the suction tube may be introduced into the machine space in the region of the second machine space sidewall in the lateral direction, for example, through an opening in the top of the machine space or an opening in the inner wall of the machine space.

[0018] According to some embodiments, at least the end section of the suction pipe can be constructed as an aluminum tube, and this end section is connected, particularly welded, to a copper tube at a connection point. This copper tube connects to the suction connection of the compressor, wherein the connection point is at the same vertical height level as the valve or located between the valve and the top of the machine space. Therefore, the copper tube extends vertically only below or on the side of the aluminum tube facing away from the top of the machine space. Since refrigeration appliances are typically positioned so that the vertical direction extends along the direction of gravity when used as intended, condensate can be better drained or guided away from the aluminum tube if it forms on the suction pipe. This reduces the risk of corrosion.

[0019] According to some embodiments, the storage compartment can be defined by an inner container surrounded by insulating foam, wherein the suction tube extends partially within the foam insulation. Correspondingly, the method for assembling a refrigeration appliance may additionally include, after laying the suction tube, foaming the inner container with insulating foam, wherein during foaming, the top of the machine space is supported by a support tool positioned in the machine space, and after foaming, the support tool is removed from the machine space. The top of the machine space is supported during foaming the inner container. This requires the machine space to be substantially empty. However, the suction tube extends within the foam layer to be manufactured and therefore must be laid beforehand. Especially when the suction tube is introduced into or protrudes into the machine space in the region of the second machine space sidewall with respect to the lateral direction, the suction tube can be positioned space-savingly on the second sidewall during foaming. Preferably, the valve is assembled after foaming.

[0020] According to some embodiments, the refrigerant circuit can be configured with a sidewall liquefier and a frame heating device. The sidewall liquefier is integrated into the sidewall of the housing, and the frame heating device is arranged on the front side of the housing. The sidewall liquefier has a first return line, the end section of which protrudes into the machine space from the sidewall of the second machine space. The frame heating device has a second return line, the end section of which protrudes into the machine space from the sidewall of the second machine space. The end sections of the first and second return lines are interconnected, and none of these end sections extends with respect to depth between the inner wall of the machine space and the valve. The frame heating device and the sidewall liquefier can be connected in series, particularly hydraulically. Thus, the end section of the first line of the frame heating device is connected to the first end section of the line of the sidewall liquefier, and the end section of the second line of the frame heating device is connected to the second end section of the line of the sidewall liquefier. The piping for the sidewall liquefier extends within the sidewall of the housing and is thermally connected to the housing's outer shell. The piping for the frame heating unit extends on the front side of the refrigeration unit, particularly along the periphery of the housing's access opening, through which the storage compartment is accessed. The end sections of these pipes protruding into the machine space on the second machine space sidewall are interconnected and all extend in front of or above the valves on the second machine space sidewall. This facilitates the connection of these end sections, as the connection points are thus more easily accessible.

[0021] According to some implementations, the end section may be configured to extend vertically between the top of the machine space and the valve and / or extend with respect to the depth between the end of the second sidewall opposite to the inner wall of the machine space and the valve.

[0022] According to some embodiments, the end sections can be connected to each other, particularly welded, at a connection point located in the end region of the second machine space sidewall, facing away from the inner wall of the machine space in the depth direction. This makes the connection point very easily accessible, further facilitating assembly.

[0023] According to some implementation methods, the end section can be arranged to extend parallel to the sidewall of the second machine space. This allows for a more space-saving arrangement of the pipe end within the machine space.

[0024] According to some embodiments, the refrigerant circuit can be configured with a capillary assembly connected to a valve. This capillary assembly has a capillary spiral portion connected to the valve, which is thermally connected to a suction pipe and arranged vertically on a second machine space sidewall between the valve and the top of the machine space. Since the valve is positioned in the lower end region of the machine space sidewall away from the top of the machine space, the capillary spiral portion can be positioned upwards without problems and with space-saving advantage. This further facilitates assembly.

[0025] According to some embodiments, the refrigeration appliance may have an evaporator plate disposed in a machine space for receiving condensate from a storage compartment. The evaporator plate is vertically positioned between the compressor and the top of the machine space and extends laterally from at least one region facing the inner wall of the machine space to a second machine space sidewall. The evaporator plate may, for example, be positioned on or connected to the compressor. Since a valve is located in the lower end region of the machine space sidewall away from the top of the machine space, the evaporator plate may extend towards the second machine space sidewall.

[0026] Features and advantages disclosed in one aspect of the invention are also disclosed in the corresponding other aspect, and vice versa. Attached Figure Description

[0027] The invention will now be described with reference to the accompanying drawings. The drawings show: Figure 1 A simplified schematic cross-sectional view of a refrigeration appliance according to an embodiment of the present invention is shown; Figure 2 A partial perspective view of a refrigeration appliance according to an embodiment of the present invention is shown in the side wall region of the machine space; Figure 3 Shown in the omission Figure 2 In the case of the valve shown Figure 2 A top view of the side wall of the machine space; and Figure 4 A simplified perspective view of a refrigeration appliance according to another embodiment of the present invention is shown; Figure 5 A schematic diagram of a refrigerant circuit for a refrigeration appliance according to another embodiment of the present invention is shown; and Figure 6 A flowchart illustrating a method for assembling a refrigeration appliance according to an embodiment of the present invention is shown.

[0028] In the accompanying drawings, unless otherwise stated, the same reference numerals denote the same or functionally identical parts. Detailed Implementation

[0029] Figure 1 A refrigeration appliance 100 in the form of a refrigerator is shown as an example. However, the invention is not limited thereto, and the refrigeration appliance may also be a cooling and freezing combination unit, a freezer cabinet, a freezer box, or generally a household refrigeration appliance.

[0030] like Figure 1 As illustrated, the refrigeration appliance 100 has a housing 110, a refrigerant circuit 4, and optionally an evaporator 6.

[0031] The housing 110 may, for example, have a cuboid shape, such as... Figure 1 As shown schematically. (For example) Figure 1 As exemplarily shown, the housing 110 may have an internal container 1, a base housing 115, and a foam insulation portion 3.

[0032] The inner container 2 defines or limits a storage compartment 10 for containing cooled items, such as food, beverages, medicines, or the like. Figure 4 As schematically shown, the housing 110 may have an access opening 111 through which the storage compartment 10 can be accessed. A door (not shown) may be supported on the front side of the housing 110, through which the access opening 111 is constructed, to close or open the access opening 111. The inner container 1 is surrounded by a foam insulation 3 and is thus insulated.

[0033] The base housing 115 defines a machine space 2. The machine space 2 is bounded about a vertical direction V by a top 20 and optionally additionally by a bottom 24, which is arranged opposite to the top 20. About a lateral direction C extending transversely to the vertical direction V, the machine space 2 is bounded by opposing first and second machine space sidewalls 21 and 22, wherein the bottom 24 and top 20 extend about a lateral direction C between the sidewalls 21 and 22. The sidewalls 21 and 22 themselves extend about a vertical direction V and a depth direction T, which extends transversely to both the vertical direction V and the lateral direction C. About a depth direction T, the machine space 2 is bounded by an inner wall 23, which extends about a lateral direction C between the sidewalls 21 and 22. The machine space 2 may have a machine space opening 24, which is bounded by the side walls 21, 22, the top of the machine space 20 and, if necessary, the bottom of the machine space 24.

[0034] Refrigerant circuit 4 in Figure 1 The diagram is shown only schematically and is generally configured to extract heat from storage cell 10 in the event of refrigerant vaporization and to release heat to the environment in the event of refrigerant condensation. Figure 1 As shown, the refrigerant circuit 4 has a vaporizer 41 thermally coupled to the storage compartment 10, a liquefier 43 thermally coupled to the environment, a compressor 42, and a valve 44. Optionally, the refrigerant circuit 4 may additionally have a sidewall liquefier 45 and a frame heating device 46, such as... Figure 4 and Figure 5 As shown schematically.

[0035] Compressor 42 is positioned in machine space 2 and has an adsorption terminal 42A and a pressure attachment terminal 42B. Compressor 42 is configured to draw in gaseous refrigerant at adsorption terminal 42A, compress the gaseous refrigerant, and discharge the gaseous refrigerant at pressure attachment terminal 42B. Figure 1 and Figure 5 As shown, the vaporizer 41 is connected to the suction terminal 42A of the compressor 42 via the suction pipe 50.

[0036] The liquefier 43 is connected to the pressure attachment terminal 42B of the compressor 42. For example... Figure 1 As exemplarily shown, the liquefier 43 may be arranged, for example, in machine space 1. Alternatively, the liquefier 43 may be positioned in machine space 2 together with a fan 49 configured to deliver an airflow via or through the liquefier 49 to facilitate heat dissipation to the environment. The liquefier 43 may be, for example, an MCHE liquefier or generally a compact liquefier. The liquefier 43 is connected to the vaporizer 41 via a capillary assembly 46, wherein the capillary assembly or an additional throttling valve (not shown) acts as a throttling section to reduce the pressure of the refrigerant at least partially condensed in the liquefier 43.

[0037] like Figure 1 As schematically shown, valve 44 is connected to liquefier 46 via a first capillary line 48A and to vaporizer 41 via a second capillary line 48B. Valve 44 can be, for example, a shut-off valve configured to stop or allow refrigerant flow through capillary lines 48A and 48B. Alternatively, valve 44 can also be configured as a regulating valve configured to adjust different flow rates. Furthermore, it is conceivable that the refrigerant circuit 4 has multiple vaporizers 41, each connected to valve 44 via a capillary line, wherein valve 44 can be configured to change the refrigerant inflow into each vaporizer 41. In this case, valve 44 can be configured as a rotary slide valve. Generally, valve 44 is configured to change the flow rate of condensed refrigerant.

[0038] like Figure 5 Furthermore, as shown, an optional sidewall liquefier 45 and an optional frame heating device 46 can be connected in series with the liquefier 43. The sidewall liquefier 45 may have a first pipe return line 55 having a pipe extending in the sidewall 112 of the housing 100. This pipe is in thermally conductive contact with the housing cover (not shown), thereby allowing heat dissipation to the environment using the large surface area of ​​the sidewall 112.

[0039] The frame heating device 46 may have a second pipe return line 56, which has a first pipe 46A and a second pipe 46B. For example... Figure 4As schematically shown, the first and second pipes 46A and 46B can be arranged on the front side of the housing 110, specifically such that the first and second pipes together at least partially, and optionally substantially completely, surround the entry opening 111. Figure 5 As shown, for example, the first pipe 46A can be connected to the pressure attachment end 42B of the compressor 42. The first pipe end 55A of the first pipe return line 55 of the sidewall liquefier 45 can be connected to the pipe end 56A of the first pipe 56. The second pipe end 55B of the first pipe return line 55 of the sidewall liquefier 45 can be connected to the pipe end 56B of the second pipe 46B of the frame heating device 46, which itself is connected to the liquefier 43. Alternatively, the liquefier 43 can also be connected between the compressor 42 and the first pipe 46B of the frame heating device 46.

[0040] like Figure 2 As exemplarily shown, valve 44 is positioned in an end region of the second machine space sidewall 22, which faces away from the top 20 of the machine space with respect to the vertical direction V and faces the inner wall 23 of the machine space with respect to the depth direction T. Intuitively, valve 44 is positioned in a corner region formed by the second machine space sidewall 22 and the rear wall 23 of the machine space, near the bottom 24 of the machine space. Figure 2 and Figure 3 As exemplarily shown, valve 44 can be fastened to the second machine space sidewall 22. For example, a fastening structure 7 can be provided on the second machine space sidewall 22, which may, for example, have a plurality of pins 71 protruding from the second machine space sidewall 22 in the lateral direction C, such as... Figure 3 As exemplarily shown, valve 44 may have a flange 72 that can be secured, for example, to a form-locking and / or force-locking pin 71.

[0041] like Figure 2 and Figure 3 As also shown, the suction tube 50 extends into the machine space 2 with its end section 51. The main section 54 of the suction tube 50, extending outside the machine space 2, may extend at least partially within the foam insulation section 3. (As shown...) Figure 2 and Figure 3 As shown, the end section 51 of the suction tube 50 is arranged about the vertical direction V between the top 23 of the machine space and the valve 44, and extends at least partially along the depth direction T. Therefore, generally, the suction tube 50 protrudes into the machine space 2 through an opening 26 constructed about the vertical direction V between the valve 44 and the top 20, or constructed within the top 20. For example, the suction tube 50 can be introduced into the machine space 2 in the region of the inner wall 23 of the machine space about the depth direction T, for example, through the opening 26 in the inner wall of the machine space. Figure 2 and Figure 3As exemplarily shown, or introduced through an opening in the top 20 of the machine space. Regarding the lateral direction C, the opening 26 can be located, in particular, in the region of the side wall 22 of the second machine space, such as… Figure 2 As shown. Generally, the end section 51 of the suction tube 50 can extend from the end region of the machine space 2 facing the inner wall 23 of the machine space in the depth direction T to the end region of the machine space 2 away from the inner wall 23 of the machine space in the depth direction T, that is, until it extends adjacent to the machine space opening 25. Figure 2 As clearly shown, by arranging the valve 44 in the corner region formed by the machine space side wall 22 and the machine space inner wall 23 and arranging it at the bottom with respect to the vertical direction V, a space-saving arrangement of the valve 44 is achieved, and the end section 51 of the suction pipe 50 can also be arranged in the machine space 2 in a space-saving manner.

[0042] like Figure 2 and Figure 3 As schematically shown, the end section 51 of the suction tube 50 may have a bend or an arc-shaped section 51A that connects a first straight section 51B extending along the depth direction T facing the inner wall 23 of the machine space to a second straight section 51C extending along the vertical direction V.

[0043] The suction tube 50 can be connected to the suction terminal 42A of the compressor 42 via a connecting tube 53, which connects to the end of the suction tube 50 at the connection point 42, for example, by welding to the suction tube. The connecting tube 53 can be, in particular, a copper tube, while the suction tube 50, or at least the end section 51 of the suction tube, can optionally be an aluminum tube. Figure 2 As shown, the connection part 52 can be located between the valve 44 and the top 20 of the machine space with respect to the vertical direction V, or at the same height level as the valve 44. Figure 2 and Figure 3 As exemplarily shown, the connection portion 52 can be formed at the end of the second straight section 51C of the end section 51 of the suction tube 50. Generally, the connection tube 53 therefore extends only below the end section 51 of the suction tube 50 with respect to the vertical direction V. Therefore, in the event of condensation forming on the end section 51 of the suction tube, the condensate can be better drained away from the end section 51, which is made of aluminum, thus reducing the risk of corrosion. Since the connection portion 52 is arranged in the area of ​​the machine space opening 25 and is not positioned below the valve 44 with respect to the vertical direction V, the connection portion 52 is easily accessible, which facilitates assembly.

[0044] like Figure 2 and Figure 3 Additionally, as shown, the end sections 55A and 55B of the first pipe return line 55 of the sidewall liquefier 45 protrude into the machine space 2 from the second machine space sidewall 22. For example... Figure 3As exemplarily shown, the end sections 55A and 55B of the first pipe return line 55 can be arranged parallel to each other in an S-shape along the side wall 22 of the second machine space. A straight section extending in the vertical direction V is provided in the end region facing the machine space opening 25, forming the end of the first pipe return line 55. Alternatively, the end sections 56A and 56B of the second pipe return line 56 of the optional frame heating device 46, or the first and second pipes 46A and 46B, also protrude into the machine space 2 from the side wall 22 of the second machine space. Figure 3 As shown, the end sections 56A and 56B of the second pipe return line 56 can protrude into the machine space 2 with respect to the depth direction T, for example, between the end sections 55A and 55B of the first pipe return line 55 and the inner wall 23 of the machine space. Figure 3 Furthermore, as shown, the end sections 56A and 56B of the second return line 56 can be arranged parallel to each other along the side wall 22 of the second machine space in the direction of the machine space opening 25, for example, in a U-shape. A straight section extending in the vertical direction V is provided in the end region facing the machine space opening 25, and this straight section is aligned with the straight sections of the end sections 55A and 55B of the first return line 55. The end sections 55A, 55B, 56A, and 56B can extend parallel to the side wall 22 of the second machine space. For example, the end sections 55A, 55B, 56A, and 56B can all be arranged in a single plane within the machine space 2. Generally, this achieves a space-saving arrangement.

[0045] The end sections 55A, 55B, 56A, and 56B of the first and second return lines 55 and 56 are connected to each other, for example, by welding, at connection points 57A and 57B. Figure 3 As clearly shown, these connecting portions 57A and 57B can be located in the end region of the second machine space sidewall 22 facing away from the inner wall 23 of the machine space in the depth direction T, i.e., in the region of the machine space opening 25, and are therefore easily accessible. Figure 2 and Figure 3 As further shown, end sections 55A, 55B, 56A, and 56B extend laterally only above or in front of valve 44 in both the depth direction T and the vertical direction V. End sections 55A, 55B, 56A, and 56B may extend with respect to the vertical direction V, for example, between the top 20 of the machine space and valve 44, and / or with respect to the depth direction T, between the end of the second machine space sidewall 22 facing away from the inner wall 23 of the machine space and valve 44. Overall, none of the end sections 55A, 55B, 56A, and 56B extend with respect to the depth direction T between the inner wall 23 of the machine space and valve 44. This facilitates both the mounting of valve 44 on the second machine space sidewall 22 and the connection of end sections 55A, 55B, 56A, and 56B.

[0046] like Figure 2 and Figure 3 Furthermore, as shown, the capillary tube connected to valve 44, such as capillary tube 48B leading from valve 44 to vaporizer 41, can be wound into a capillary helix 48C in machine space 2. This capillary helix is ​​thermally connected to suction pipe 50, for example, to form a suction throttling tube heat exchanger, and is arranged about the vertical direction V on the side wall 22 of the second machine space between valve 44 and the top 20 of the machine space. Figure 2 and Figure 3 As shown in the figure, the capillary spiral portion 48C may optionally be positioned between the end section 51 of the suction tube 50 and the valve 44.

[0047] Evaporation pan 6 is used to collect condensate from storage compartment 10 and is arranged in machine space 2. For example... Figure 1 As schematically shown, the evaporator plate 6 can, for example, be positioned on the compressor 42. Generally, the evaporator plate 6 is positioned about V in the vertical direction between the compressor 44 and the top 20 of the machine space. Figure 1 As shown schematically only, the evaporator 4 can also be positioned about vertically in the direction V between the valve 44 and the top 20 of the machine space. Since the valve 44 is located in the end region of the second sidewall 22 that is away from the top 20 of the machine space about vertically in the direction V, the evaporator 6 can extend in the lateral direction C to the second machine space sidewall 22 and to at least one region facing the inner wall 23 of the machine space.

[0048] Figure 6 The process of method M for assembling refrigeration appliance 100 is illustrated schematically, and the method is described below with reference to the refrigeration appliance 100.

[0049] In step M1, the suction tube 50 is arranged in the housing 110 and the machine space 2 such that the end section 51 of the suction tube 50 protrudes into the machine space 2 in the end region of the sidewall 22 of the machine space and extends at least partially along the depth direction T, the end region facing the top 20 of the machine space with respect to the vertical direction V. For example, the suction tube 50 may be guided through the opening 26. If necessary, in step M1, the end sections 55A, 55B, 56A, 56B of the optional sidewall liquefier 45 and optional frame heating device 46 pipe return lines 55, 56 may also be arranged in the housing 110 and the machine space 2 such that the end sections 55A, 55B, 56A, 56B protrude into the machine space 2 on the second sidewall 22 of the machine space. The connection of the end sections 55A, 55B, 56A, 56B, for example by welding, may also be performed in step M1.

[0050] After the M1 suction pipe 50 is installed and, if necessary, optional return pipes 55 and 56 are installed, an optional step M2 is performed in which the inner container 1 is foam-coated with insulating foam. Prior to step M2, a support tool (not shown) may be positioned in the machine space 2. This support tool, for example in the form of a block or frame, supports the top 20 of the machine space in the vertical direction V. Thus, the top 20 of the machine space is supported during foaming. After foam coating, the support tool is removed from the machine space 2.

[0051] In step M3, valve 44 is assembled on the second machine space sidewall 22. M3 is performed on the end region of the second machine space sidewall 22, which is opposite to the top 20 of the machine space with respect to the vertical direction V and facing the inner wall 23 of the machine space with respect to the depth direction T. For example, valve 44 can be fixed to fastening structure 7, for example, by connecting flange 72 to pin 71 in a form-locking and / or force-locking manner.

[0052] In step M4, the compressor 41 is assembled in the machine space 2. Optionally, in step M4, the assembly of the liquefier 43, which may be disposed in the machine space 2, may also be performed together with the fan 49 if necessary. For example, the compressor 41, along with the liquefier 43 and the fan 49, may be assembled outside the machine space onto the bottom 24 of the machine space, and pushed into the machine space 2 along the depth direction T from the bottom 24 of the machine space.

[0053] In step M5, the suction pipe 50 is connected to the suction terminal 42A of the compressor 42, for example, by connecting the connecting pipe 53 to the end section 51 of the suction pipe 50, particularly by welding. In step M5, capillary lines 48A and 48B can also be connected to the valve 44.

[0054] Although the invention has been exemplarily described above with reference to embodiments, the invention is not limited thereto, but can be modified in various ways. In particular, combinations of the above embodiments are also conceivable.

[0055] List of reference numerals 1 inner container 2 Machine Space 3. Foam insulation section 4. Refrigerant Circuit 6 Evaporation Pan 7 Fastening Structure 10 storage compartments 20 Machine Space Top 21 First Machine Space Sidewall 22 First Machine Space Sidewall 23 Machine Space Top 24 Bottom of machine space 25 Machine space opening 26 Opening 41. Carburetor 42 Compressor 42A suction adsorption terminal 42B Pressure Attachment Terminal 43 Liquefaction Unit 44 valves 45 Sidewall Liquefaction Unit 46 Frame heating device The first tube of the 46A frame heating device 46B Frame heating device second tube 48 Capillary Circuit Assembly 48A First Capillary Circuit 48B Second Capillary Circuit 48C Capillary Spiral Section 49 Fans 50 suction tubes 51. End section of the suction tube 51A Curved section / bend 51B First Straight Section 51C Second Straight Section 52 Connection parts 53 Connecting pipe 54 Main section of the suction tube 55 First Pipe Return Line End sections of the first pipeline loops 55A and 55B 56 Second pipe return line End sections of the second pipeline loops 56A and 56B 100 Refrigeration appliances 110 Main Body 111 Enter the opening 112 Side walls of the enclosure M method Method steps for M1-M5.

Claims

1. A refrigeration appliance (100), particularly a household refrigeration appliance, said refrigeration appliance having: The enclosure (110) defines storage compartments (10) for accommodating cooled items and machine space (2), wherein, The machine space (2) is bounded by the top (20) of the machine space in the vertical direction (V), by the first and second machine space sidewalls (21, 22) that are opposite each other in the horizontal direction (C), and by the inner wall (23) of the machine space in the depth direction (T). and A refrigerant circuit (4) configured to extract heat from the storage cell (10) in the case of refrigerant vaporization and to discharge heat to the environment in the case of refrigerant condensation, wherein the refrigerant circuit (4) has a compressor (42) located in the machine space (2) for circulating the refrigerant and a valve (44) for changing the flow rate of the condensed refrigerant. Its features are, The valve (44) is located in the end region of the second machine space sidewall (22) facing away from the top (20) of the machine space in the vertical direction (V) and facing the inner wall (23) of the machine space in the depth direction (T). The suction pipe (50) connected to the suction end (42A) of the compressor (42) protrudes into the machine space (2) between the top (23) of the machine space and the valve (44) in the vertical direction (V), and The end section (51) of the suction tube (50) extending in the machine space (2) extends at least regionally along the depth direction (T).

2. The refrigeration appliance (100) according to claim 1, wherein, The end section (51) of the suction tube (50) extends from the end region of the machine space (2) facing the inner wall (23) of the machine space in the depth direction (T) to the end region of the machine space (2) away from the inner wall (23) of the machine space in the depth direction (T).

3. The refrigeration appliance (100) according to claim 1 or 2, wherein, The suction tube (50) is introduced into the machine space (2) in the region of the inner wall (23) of the machine space with respect to the depth direction (T).

4. The refrigeration appliance (100) according to any one of the preceding claims, wherein, The suction tube (50) is introduced into the machine space (2) in the region of the second machine space sidewall (22) with respect to the lateral direction (C).

5. The refrigeration appliance (100) according to any one of the preceding claims, wherein, At least the end section (51) of the suction tube (50) is constructed of aluminum tube, and wherein the end section (51) is connected, in particular welded, to a copper tube (53) at a connection (52), the copper tube being connected to the suction end (42A) of the compressor (42), wherein the connection (52) is at the same height level as the valve (44) with respect to the vertical direction (V) or located between the valve (44) and the top (20) of the machine space.

6. The refrigeration appliance (100) according to any one of the preceding claims, wherein, The storage compartment (10) is bounded by an inner container (1) surrounded by insulating foam (3), and wherein the suction tube (50) extends partially within the foam insulating portion (3).

7. The refrigeration appliance (100) according to any one of the preceding claims, wherein, The refrigerant circuit (4) has a sidewall liquefier (45) and a frame heating device (46). The sidewall liquefier is integrated into the sidewalls (111, 112) of the housing (110). The frame heating device is arranged on the front side of the housing (110). The sidewall liquefier (45) has a first pipe return line (55). The end sections (55A, 55B) of the first pipe return line protrude into the machine space (2) on the sidewall (22) of the second machine space. The frame heating device (46) has a second... The return line (56), the end sections (56A, 56B) of the second return line protrude into the machine space (2) on the side wall (22) of the second machine space, wherein the end sections of the first return line and the end sections (55A, 55B, 56A, 56B) of the second return line (55, 56) are connected to each other, and none of the end sections (55A, 55B, 56A, 56B) extends between the inner wall (23) of the machine space and the valve (44) with respect to the depth direction (T).

8. The refrigeration appliance (100) according to claim 7, wherein, The end sections (55A, 55B, 56A, 56B) extend about the vertical direction (V) between the top (20) of the machine space and the valve (44) and / or about the depth direction (T) between the end of the second sidewall (22) opposite to the inner wall (23) of the machine space and the valve (44).

9. The refrigeration appliance (100) according to claim 7 or 8, wherein, The end sections (55A, 55B, 56A, 56B) are connected to each other, in particular welded, at connection points (57A, 57B), which are located in the end region of the second machine space sidewall (22) away from the inner wall (23) of the machine space in the depth direction (T).

10. The refrigeration appliance (100) according to any one of claims 7 to 9, wherein, The end sections (55A, 55B, 56A, 56B) extend parallel to the second machine space sidewall (22).

11. The refrigeration appliance (100) according to any one of the preceding claims, wherein, The refrigerant circuit (4) has a capillary assembly (48) connected to the valve (44), the capillary assembly having a capillary spiral (48C) connected to the valve (44), the capillary spiral being thermally connected to the suction pipe (50) and arranged on the side wall (22) of the second machine space about the vertical direction (V) between the valve (44) and the top (20) of the machine space.

12. The refrigeration appliance (100) according to any one of the preceding claims, wherein the refrigeration appliance additionally comprises: An evaporator (6) arranged in the machine space (2) for receiving condensate from the storage compartment (10) is positioned about the vertical direction (V) between the compressor (44) and the top (20) of the machine space and extends in the lateral direction (C) from at least one area facing the inner wall (23) of the machine space to the second machine space side wall (22).

13. A method (M) for assembling a refrigeration appliance (100) according to any one of the preceding claims, the method comprising: The suction tube (50) is arranged (M1) in the housing (110) and the machine space (2) such that the end section (51) of the suction tube (50) protrudes into the machine space (2) in the end region of the side wall (22) of the machine space facing the top (20) of the machine space with respect to the vertical direction (V) and extends at least regionally along the depth direction (T); The valve (44) is mounted (M3) on the second machine space sidewall (22) in the end region of the second machine space sidewall (22) that is away from the top (20) of the machine space in the vertical direction (V) and facing the inner wall (23) of the machine space in the depth direction (T); The compressor (41) is assembled (M4) in the machine space (2); and Connect the suction pipe (50) to the suction terminal (42A) of the compressor (42) (M5).

14. The method (M) according to claim 13, where claim 6 is referenced, further comprising: After the suction tube (50) is laid out (M1), the inner container (1) is foamed and covered (M2) with the insulating foam. During the foaming process (M2), the top (20) of the machine space is supported by a support tool located in the machine space (2), and after the foaming process (M2), the support tool is removed from the machine space (2).

Citation Information

Patent Citations

  • Refrigeration unit and appliance combination

    DE102022201627A1