DE102021207773A1 - Household appliance arrangement with a specifically oriented exhaust air duct of a drinking water cooling unit in the direction of a base gap - Google Patents

Abstract

One aspect of the invention relates to a household appliance arrangement (1) with a drinking water cooling unit (2) and with a housing (3) in which the drinking water cooling unit (2) is arranged, the housing (3) having walls (5, 6, 7, 8, 9, 11), with which a volume space (4) in which the drinking water cooling unit (2) is arranged is delimited, the housing (3) having a base () which, in the height direction (y) of the arrangement (1 ) has a lower plinth panel (3a), and an upper plinth panel (8) which is offset upwards in the height direction (y) relative to the lower plinth panel (9), the upper plinth panel (8) being arranged in the depth direction (z) of the arrangement ( 1) is arranged at a distance from the lower plinth panel (9), viewed from the front, so that a ventilation gap (16) is formed between the upper and lower plinth panels (8, 9), the drinking water cooling unit (2) having an exhaust air duct (20) for discharging of cold generated by the drinking water cooling unit emittelgas is formed, wherein the exhaust air duct (20) has an outlet opening (21) which is arranged in the height direction (y) above the ventilation gap (16), with a longitudinal axis (A) of the outlet opening (21) oriented towards the ventilation gap (16). is.

Description

One aspect of the invention relates to a household appliance arrangement with a drinking water cooling unit. The household appliance arrangement also has a housing in which the drinking water cooling unit is arranged. The housing has walls with which a volume space in which the drinking water cooling unit is arranged is delimited. The housing has a base, which has a lower base panel in the height direction of the household appliance arrangement. The plinth also has an upper plinth panel viewed in the vertical direction. This is offset upwards in the height direction under the plinth panel.

Cooling units that are used in the home to cool drinking water, for example, can be installed in a base cabinet area in the kitchen. Such refrigeration units contain a refrigeration cycle for refrigeration, in which refrigerant is usually used. Well-known refrigerants here are, for example, isobutane (R600a) or isopropane (R290). These refrigerants are very commonly used in the field of such refrigeration units, but have the disadvantage that they are flammable and explosive in certain concentrations. This applies, for example, to concentrations in the range between 3% by volume and 9% by volume. The refrigeration circuit in which said gas is located is usually made of metal pipes.

If the situation arises in which the refrigeration circuit becomes leaky over the course of the operating life of such a refrigeration unit, which can be the case, for example, due to corrosion or manufacturing defects or chafing contact with vibrating parts, gas can escape and an ignitable mixture can form in the base cabinet. This can also lead to a deflagration.

The gases mentioned are heavier than air, but at medium temperatures, for example around 50°C, they can escape from a leak in the refrigeration circuit and thus rise quickly, for example in the case of colder ambient air and/or convection of the ambient air . This can also result in an ignition source that can cause the gas to explode and, in this context, cause a deflagration.

Known solutions to prevent this can be seen in the fact that a ventilation grille is installed in a plinth panel in the area of the cooling unit and with considerable effort, which, in addition to heat exchange, also serves to release escaping gas into the kitchen area, where it is significantly stronger is diluted and thus becomes harmless with regard to the above-mentioned problems. In addition, systems are also known which use a gas sensor to detect the exit and switch on corresponding fans, which then blow the gas out into the open or into the kitchen area. Such devices are usually those in which corresponding outputs are also planned. However, these usually have very high installation costs and are only suitable to a limited extent in terms of their design in the field of vision, so that they can also be installed in a kitchen. A further disadvantage of systems with gas sensors can be seen in the fact that the gas can escape at points where there is currently no sensor, as a result of which the gas escape cannot be detected or can only be detected inadequately.

It is the object of the present invention to create a household appliance arrangement in which a gas escape from a drinking water cooling unit can be rendered harmless in a simple and efficient manner.

This object is achieved by a household appliance arrangement having the features of claim 1.

One aspect of the invention relates to a household appliance arrangement with a drinking water cooling unit. The household appliance arrangement also has a housing in which the drinking water cooling unit is arranged. The housing has walls with which a volume space in which the drinking water cooling unit is arranged is delimited. The housing has a base, which has a lower base panel in the height direction of the household appliance arrangement. The plinth also has an upper plinth panel viewed in the vertical direction. This is offset upwards in the height direction under the plinth panel.

Viewed in the depth direction of the household appliance arrangement, the upper plinth panel is spaced forward from the lower plinth panel. As a result, a ventilation gap is formed between the upper base panel and the lower base panel viewed in the depth direction. The drinking water cooling unit also has an exhaust air duct for discharging refrigerant gas. The exhaust air duct has an outlet opening which is arranged above the ventilation gap when viewed in the vertical direction. In particular, a longitudinal axis of the outlet opening is oriented towards the ventilation gap and downwards. Such a household appliance arrangement creates a concept in which any refrigerant gas that may occur can be discharged easily and efficiently from the volumetric space of the housing. A particularly simple one This makes it possible to render this possibly occurring refrigerant gas harmless with regard to the problems explained at the outset. The simple creation of a locally specified ventilation gap, namely between the two separate base panels, and a locally specified arrangement of an exhaust air duct, which is part of the drinking water cooling unit itself, enables a simple and highly efficient concept for discharge in this regard. The orientation of the exhaust air duct and the position of the outlet opening make it possible, particularly functionally, to be able to route the refrigerant gas directly to this ventilation gap and then to be able to route it out of the housing from there.

In one exemplary embodiment, the exhaust air duct is arranged with its outlet opening, when viewed in projection, at least in regions overlapping with the ventilation gap. This means that in a projection plane in which this exhaust air duct with the outlet opening and the ventilation gap are then arranged, the relevant surfaces overlap at least in regions. This enables a particularly advantageous concept for the direct conduction of the refrigerant gas from the outlet opening to the ventilation gap. This enables a very short, direct gas path leading through the ventilation gap to the outside.

In one embodiment, the outlet opening is located adjacent to the inside of the top base panel. This is another preferred embodiment. Because with such an arrangement, the so-called Coanda effect can also be used at the same time. As a result of this locally close positioning, the gas is then guided to the ventilation gap, flowing almost directly along the inside of the upper base panel, due to this effect mentioned. It is provided that the gas flowing out of the outlet opening adheres to this inner side, thus enabling particularly efficient guidance to the ventilation gap. This prevents this refrigerant gas escaping from the outlet opening from being undesirably distributed in the volumetric space of the housing. In particular, the distance between the inside and the outlet opening is less than 8 cm, in particular less than 5 cm, in particular less than 3 cm.

The distance between the upper base panel and the lower base panel, measured in the depth direction, is preferably between 4 cm and 10 cm. At the same time, this also affects the size of the ventilation gap in this depth direction.

In an advantageous exemplary embodiment, the household appliance arrangement is designed without a gas sensor for detecting the refrigerant gas. A system with a very small number of components for such a household appliance arrangement can thus be provided. Expensive sensors can be saved as a result. These are unnecessary in the concept proposed above with the locally specified arrangement of the ventilation gap and the specific positioning of a novel exhaust air duct of the drinking water cooling unit with the specifically oriented outlet opening.

In one exemplary embodiment, the exhaust air duct, viewed in the depth direction of the household appliance arrangement, is arranged in a freely cantilevered manner at the front. The exhaust port is formed at a front end of the exhaust duct. This cantilevered orientation also makes it possible for the exhaust air duct to be positioned closer to the ventilation gap, and thus in this respect a very short path from the outlet opening to the ventilation gap downwards is also made possible. Other sub-components of the drinking water cooling unit can then be positioned elsewhere in the volume space, and this orientation of the exhaust air duct nevertheless achieves a locally preferred proximity to the ventilation gap. This also makes it possible to avoid an undesired distribution of escaping refrigerant gas in the volume space and still use the volume space with regard to the advantageous positioning of other components of the drinking water cooling unit.

In one exemplary embodiment, viewed in the vertical direction of the household appliance arrangement, a lower end of the upper plinth panel is arranged relative to an upper end of the lower plinth panel such that the two plinth panels are arranged in an overlapping manner in the vertical direction. Alternatively, these two ends can be positioned relative to one another, viewed in the height direction, in such a way that their named ends are arranged at the same height. In particular, it is thus avoided that these mentioned ends of the base panels have a distance viewed in the height direction, so that a gap formed in the height direction would also arise. When viewed from the front and thus when viewed in the depth direction of the household appliance arrangement, the lower end of the upper plinth panel is therefore arranged at the same level as the upper end of the lower plinth panel or offset downwards in relation thereto. Therefore, no embodiment has been realized in which the lower end of the upper base panel would be arranged further up than the upper end of the lower base panel. As a result, the ventilation gap is formed in such a way that it is covered in the horizontal direction by the upper plinth panel and the ventilation gap is therefore designed to be open only at the bottom.

The ventilation gap on the one hand and the volume of the housing on the other hand are almost completely covered from the front. This configuration of the ventilation gap also makes a positive contribution to the fact that the refrigerant gas can be discharged from the volume of the housing in a defined direction. This design of the ventilation gap is particularly advantageous in connection with the exhaust air duct and its position of the outlet opening.

In one exemplary embodiment, the exhaust air duct, viewed in the depth direction of the household appliance arrangement, is arranged such that it protrudes forwards over a base block of the drinking water cooling unit. Viewed in depth direction, the exhaust air duct cantilevers further forward than this base block. The base block has the housing and the components of the drinking water cooling unit arranged therein. The base block is set up directly on the ground. This is very advantageous in that the base block can be arranged behind the lower plinth panel when viewed in the depth direction and the exhaust air duct can nevertheless protrude forwards beyond this lower plinth panel when viewed in the depth direction. This exhaust air duct is thus more or less an arm projecting forwards over the lower plinth panel. This combination is particularly advantageous with the design and positioning of the ventilation duct. Because then only this exhaust air duct protrudes forwards over the lower plinth panel and protrudes above this lower plinth panel viewed in the height direction, so that the outlet opening can be positioned immediately adjacent to the ventilation gap. This also supports the particularly advantageous discharge concept for the refrigerant gas. Viewed in the depth direction, the base block is arranged completely behind the lower plinth panel. In particular, it is covered towards the front by the lower plinth panel.

In one exemplary embodiment, the exhaust air duct can be implemented as a cantilevered arm. It can also be implemented as a bird's neck that is elongated in this regard, in particular also as a straight neck. A gooseneck-like design can also be possible.

In one embodiment, the drinking water cooling unit has a fan. With this, a gas flow of the coolant gas is generated. This also supports the directed outflow of this refrigerant gas from the drinking water cooling unit and in particular also from the volume of the housing.

In one exemplary embodiment, the fan is operated in continuous operation independently of the concentration of the refrigerant gas in the volumetric space of the housing. This reliably prevents an undesirably high concentration of refrigerant gas from occurring, particularly in the volumetric space of the housing. Because the continuous operation always allows the gas in the volume of the housing to be discharged via the ventilation gap. In an alternative exemplary embodiment, it is provided that, in particular independently of the concentration of the refrigerant gas, the fan is operated continuously in a predetermined clocked operation. This means that a fixed, predetermined clock cycle of switching on and off takes place permanently, and this is independent of the concentration of the refrigerant gas in the volume space. This enables energy-saving operation compared to full continuous operation.

It can also be provided that the fan can be operated at different speeds. This is provided in particular when it is also provided for dissipating heat in the volume space. For example, the fan can then be operated at low speeds in the function of a refrigerant removal fan. In comparison, higher speeds can be set if the fan is to be used to dissipate heat from the volume space. With regard to the clocked operation mentioned above, it can be provided that clocking takes place in minute time intervals, which means that the switched-on operation takes place for example for one or more minutes and then the switched-off operation is set accordingly for one or more minutes. This can then be continued in alternation indefinitely.

In one exemplary embodiment, the exhaust air duct is designed as a flat duct, viewed in the vertical direction of the household appliance arrangement. It is therefore realized in a particularly space-saving manner and the structure in the height direction can be made relatively small. As a result, relatively little installation space is required in the base of the household appliance arrangement and other components of the household appliance arrangement arranged above it, such as a sink or a drawer or other components for dispensing liquids, are not restricted in terms of installation space.

In one exemplary embodiment, the exhaust air duct is quadrangular in cross section, in particular in a vertical section. In particular, this cross-sectional shape has a width-to-height ratio of at least 4:1. In particular, this width-to-height ratio is at least 10:1. This width-to-height ratio can be a maximum of 30:1.

This dimensional relationship applies in particular to the internal cross-section of the exhaust air duct.

In one embodiment, the exhaust air duct is used in addition to its function as a refrigerant discharge duct as a heat air discharge duct in order to discharge ambient air that has been heated by the operation of the drinking water cooling unit from the volume of the housing, in particular via the ventilation gap. Therefore, only a single exhaust air duct is used for two different functionalities. This also saves components and installation space. It can be provided that the discharge path for refrigerant gas on the one hand and heated air on the other hand is the same.

It is also possible that the position of the exhaust air duct can be changed and/or the position of the outlet opening can be changed. This allows individual position adjustments and adjustments to be made. As a result, refrigerant gas and/or heated air can be discharged individually as required. With regard to changing the position of the exhaust air duct and/or the outlet opening, the exhaust air duct can have a docked adapter or a telescopic tube.

In one exemplary embodiment, it is provided that the exhaust air duct is arranged above the upper edge of the lower plinth panel, viewed in the vertical direction. This applies in particular to the outlet opening of the exhaust air duct. Provision can be made for the outlet opening of the exhaust air duct to be positioned at a stationary and defined point. In one exemplary embodiment, this cannot be changed by a user or a fitter. In particular, in one embodiment, the outlet opening is positioned at least 5 cm above the floor, in particular at least 10 cm, in particular at least 18 cm above the floor.

Provision can be made for the drinking water cooling unit to be set up directly on the floor on which the household appliance arrangement is positioned. This can be the floor of the room in which the arrangement is placed. The household appliance arrangement itself then has in particular no bottom of its own.

In one exemplary embodiment, the exhaust air duct is arranged below a drawer bottom, viewed in the vertical direction. In this context, the household appliance arrangement can have at least one drawer. The partial volume space of the volume space of the housing, in which the drinking water cooling unit is arranged, is then covered from above by this drawer bottom.

It is also possible for the outlet opening to be oriented with its opening axis vertically or essentially vertically. As a result, the outflowing gas flow is blown from the outlet opening directly to the ventilation gap.

The information “top”, “bottom”, “front”, “back”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” are the positions given for intended use and intended positioning of the arrangement orientations given.

Further features of the invention result from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description, as well as the features and feature combinations mentioned below in the description of the figures and/or shown alone in the figures, can be used not only in the combination specified, but also in other combinations or on their own, without the frame to abandon the invention. The invention is therefore also to be considered to include and disclose embodiments that are not explicitly shown and explained in the figures, but that result from the explained embodiments and can be generated by separate combinations of features. Versions and combinations of features are also to be regarded as disclosed which therefore do not have all the features of an originally formulated independent claim.

• 1 eine perspektivische Schnittdarstellung durch ein Ausführungsbeispiel einer Haushaltsgeräteanordnung;
• 2 drei Beispiele für Anordnungen von Sockelblenden einer Haushaltsgeräteanordnung mit einer zusätzlichen Darstellung eines Trinkwasserkühlaggregats der Haushaltsgeräteanordnung; und
• 3 eine schematische Seitenansicht eines Ausführungsbeispiels eines Trinkwasserkühlaggregats einer Haushaltsgeräteanordnung.

Exemplary embodiments of the invention are explained in more detail below with the aid of schematic drawings. Show it:

• 1 a perspective sectional view through an embodiment of a household appliance arrangement;
• 2 three examples of arrangements of base panels of a household appliance arrangement with an additional representation of a drinking water cooling unit of the household appliance arrangement; and
• 3 a schematic side view of an embodiment of a drinking water cooling unit of a household appliance arrangement.

Elements that are the same or have the same function are provided with the same reference symbols in the figures.

In 1 an exemplary embodiment of a household appliance arrangement 1 is shown in a perspective sectional illustration. The household appliance arrangement 1 has a drinking water cooling unit 2 . The household appliance arrangement 1 also has a housing 3 . The enclosure 3 delimits a volume space 4. In this volume space 4, the drinking water cooling unit 2 is arranged. The housing 3 has vertical side walls 5 and 6 in the exemplary embodiment. In addition, the housing 3 has a front wall 7 . The housing 3 has a base 3a. The front wall 7 is formed here by an upper plinth panel 8 . In addition, the housing 3 has a lower base panel 9 that is separate from the upper base panel 8 . In the exemplary embodiment, the household appliance arrangement 1 is set up on a floor 10 . In the exemplary embodiment shown, the housing 3 does not have its own separate floor. Therefore, in the illustrated embodiment, the drinking water cooling unit 2 is set up directly on the floor 10 of the room or the room. As can be seen, the lower plinth panel 9 is also positioned directly on the floor 10 .

In the exemplary embodiment, it can be provided that the housing 3 is covered at the top by a top wall 11 . This ceiling wall 11 is a worktop 12 in the exemplary embodiment. The household appliance arrangement 1 is part of a kitchen unit in the exemplary embodiment shown. In the exemplary embodiment, a recess 13 is formed in the worktop 12, in which here a sink 14 of the household appliance arrangement 1 is arranged sunk. The sink 14 also has a water tap 15 . It is also possible that the volume space 4 is not covered at the top by the worktop 12, but that the household appliance arrangement 1 has a drawer. A drawer base of this drawer can then delimit the volume space 4 at the top. In this connection, the drawer can be present in addition to the worktop 12 and can be arranged below the worktop 12 , in particular also below the sink 14 , in the vertical direction (y-direction) of the household appliance arrangement 1 .

As moreover in 1 As can be seen, the upper base panel 8 and the lower base panel 9 , which is separate and spaced apart therefrom, are offset from one another in the depth direction (z-direction) of the household appliance arrangement 1 . A distance measured in the z-direction can be between 4 cm and 10 cm here. A ventilation gap 16 is formed between these two base panels 8 and 9 as a result of this spaced positioning. In one exemplary embodiment, viewed in the vertical direction, a lower end 17 of the upper base panel 8 is at the same level as an upper end 18 of the lower base panel 9. It is also possible for the lower end 17, viewed in the vertical direction, to be arranged further down than the upper end 18. A positioning in which the lower end 17 is positioned higher than the upper end 18 is not intended.

The drinking water cooling unit 2 has a base block 19 . In one exemplary embodiment, a fan 22 is arranged in the base block. This also serves to convey the possible flow of refrigerant gas to an exhaust air duct 20 . The exhaust air duct 20 of the drinking water cooling unit 2 is arranged on this base block 19 . In this context, in 3 a side view of an embodiment of a drinking water cooling unit 2 is shown. It can be seen that the exhaust air duct 20 protrudes forwards in relation to the base block 19 when viewed in the depth direction. The exhaust duct 20 also extends upwardly beyond the base block 19 . The exhaust air duct 20 is designed here as a freely cantilevered arm. It has an outlet opening 21, in particular at one end 20a of the arm. This is open at the bottom. This means that an opening axis or a longitudinal axis A of this outlet opening 21 is oriented downwards. In particular, it is oriented vertically. The air flow of the gas from the exhaust air duct 20, in particular the outlet opening 21, is represented by the arrow P1.

In 2 three different exemplary embodiments of differently designed and arranged base panels 8 and 9 of the base 3a and the position of the exhaust air duct 20 are shown. In the examples according to 2 a partial section of a household appliance arrangement 1 is shown in each case in the area of these two base panels 8 and 9 and thus of the ventilation gap 16 and of the exhaust air duct 20 . As can be seen, the exhaust air duct 20 extends above the lower base panel 9 when viewed in the vertical direction. In particular, the outlet opening 21 is positioned completely above the upper end 18 of the lower base panel 9 when viewed in the vertical direction. Viewed in the depth direction, the outlet opening 21 is arranged so that it overlaps the ventilation gap 16 at least in certain areas. This means that in a projection view in a projection plane, which is spanned in particular by the xz plane, the surface of the outlet opening 21 is arranged at least partially, in particular completely, within the surface area of the ventilation gap 16 . The ventilation gap 16 is at a height h from the floor 10.

Coming from the rear, the exhaust air duct 20 cantilevers over the lower base panel 9 into the area of the ventilation gap 16. As a result, refrigerant gas, which is blown out of the outlet opening 21, flows downwards directly in the direction of the ventilation duct 16 and can thus be discharged directly via the ventilation gap 16. In particular, a distance measured in the height direction is between the bottom 10 and the outlet opening 21 more than 10 cm, in particular equal to or more than 18 cm. In particular, this distance is less than 30 cm. In 2 In the upper exemplary embodiment, an underside of the exhaust air duct 20 is arranged in particular sitting directly on the upper end 18 . The level of the outlet opening 21 is in particular the same or substantially the same as the level of the underside.

In the second picture in 2 an embodiment is shown in which the lower base panel 9 is lower than in the upper embodiment in FIG 2 . This creates a spacing between the outlet opening 21 and the ventilation gap 16 in the vertical direction.

It is advantageous, which can however be provided in all exemplary embodiments, for the outlet opening 21 to be arranged directly adjacent to an inner side 8a of the upper base panel 8 . In particular, a horizontal distance between the closest point of the outlet opening 21 and the inside 8a can be less than 5 cm. Due to this proximity, the Coanda effect can be used when the gas stream flows out of the outlet opening 21 . The outflowing gas flow therefore flows downwards along the inner side 8a due to this effect and emerges from the ventilation gap 16 . An undesired distribution of the outflowing gas in the volume space 4 is thereby avoided.

In the example below in 2 the lower plinth panel 9 is even lower than in the two exemplary embodiments in 2 . As can also be seen in the examples, the exhaust air duct 20 is completely covered at the front by the upper plinth panel 8 . It is possible in this context that in the above embodiment in 2 the lower base panel 9 is 18 cm high, for example. In the middle embodiment in 2 the lower base panel 9 can be 12 cm high, for example. In the example below in 2 the lower base panel 9 can be 5 cm high, for example.

This concept is also particularly advantageous in that the ventilation gap 16 is arranged in the front area of the household appliance arrangement 1 and the outflowing gas can flow downwards unhindered into the surrounding area of the household appliance arrangement 1 . This also results in rapid dilution of the outflowing refrigerant gas. Due to this arrangement, this refrigerant gas is also able to flow out in such a way that it flows out of the housing 3 downwards through the ventilation gap 16 .

Reference List

1

household appliance arrangement

2

drinking water cooling unit

3

enclosure

3a

base

4

volume space

5

Side wall

6

Side wall

7

front wall

8th

upper plinth panel

8a

inside

9

lower plinth panel

10

floor

11

ceiling wall

12

countertop

13

recess

14

Sink

15

water tap

16

ventilation gap

17

lower end

18

top end

19

base block

20

exhaust duct

20a

front end

21

exhaust port

22

Fan

H

Height

y

height direction

e.g

depth direction

A

opening axis

P1

Arrow

Claims (15)

Household appliance arrangement (1) with a drinking water cooling unit (2) and with a housing (3) in which the drinking water cooling unit (2) is arranged, the housing (3) having walls (5, 6, 7, 8, 9, 11), with which a volume space (4) in which the drinking water cooling unit (2) is arranged is delimited, the housing (3) having a base (3a) which has a lower base panel (9 ) has, and an upper plinth panel (8), which in heights direction (y) offset upwards to the lower plinth panel (9), characterized in that the upper plinth panel (8) viewed in the depth direction (z) of the household appliance arrangement (1) is arranged at a distance to the front from the lower plinth panel (9), so a ventilation gap (16) is formed between the upper and lower base panel (8, 9), the drinking water cooling unit (2) having an exhaust air duct (20) for removing refrigerant gas generated by the drinking water cooling unit (2), the exhaust air duct ( 20) has an outlet opening (21) which is arranged above the ventilation gap (16) in the vertical direction (y), a longitudinal axis (A) of the outlet opening (21) being oriented towards the ventilation gap (16). Household appliance arrangement (1) after claim 1 , characterized in that the exhaust air duct (20) is arranged with its outlet opening (21) in a projection view at least partially overlapping with the ventilation gap (16). Household appliance arrangement (1) after claim 1 or 2 , characterized in that the outlet opening (21) is arranged adjacent to an inner side (8a) of the upper base panel (8). Household appliance arrangement (1) according to one of the preceding claims, characterized in that the longitudinal axis (A) viewed in a vertical section of the arrangement (1) is oriented at an angular interval of between +/- 20° to the vertical. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the household appliance arrangement (1) is designed without a gas sensor for detecting the refrigerant gas. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the exhaust air duct (20) viewed in the depth direction (z) of the household appliance arrangement (1) is arranged so as to project freely forwards, and the outlet opening (21) at a front end (20a) of the exhaust air duct (20) is formed. Household appliance arrangement (1) according to one of the preceding claims, characterized in that viewed in the height direction (y) a lower end (17) of the upper base panel (8) is arranged relative to an upper end (18) of the lower base panel (9) such that the base panels (8, 9) are arranged so that they overlap, or these ends (17, 18) are arranged at the same level. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the exhaust air duct (20) viewed in the depth direction (z) of the household appliance arrangement (1) is arranged protruding forwards over a base block (19) of the drinking water cooling unit (2). Household appliance arrangement (1) after claim 8 , characterized in that the exhaust air duct (20) is arranged as a freely cantilevered arm on the base block (19). Household appliance arrangement (1) according to one of the preceding claims, characterized in that the drinking water cooling unit (2) has a fan (22) with which the flow of coolant gas is generated. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the fan (22) is operated continuously, independently of the concentration of the refrigerant gas, or is operated continuously in the predetermined clocked operation. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the exhaust air duct (20), viewed in the vertical direction (y), is formed as a flat duct. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the exhaust air duct (20) is square when viewed in cross section and has a width-to-height ratio of the cross-sectional shape of at least 4:1, in particular at least 10:1. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the exhaust air duct (20) is also used as a hot air discharge duct in order to extract ambient air heated by the operation of the drinking water cooling unit (2) from the volume space (4) of the housing (3) via the ventilation gap (16) to pay. Household appliance arrangement (1) according to one of the preceding claims, characterized in that the position of the exhaust air duct (20) is arranged to be variable and/or the position of the outlet opening (21) is arranged to be variable.

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