EP3650784A1 - Household refrigerator - Google Patents

Abstract

Household refrigeration device (1) with a housing (2) and an interior (10) formed in the housing (2) with a cover (30) which extends along a rear wall (5) of the interior (10) and the interior (10) divided into a storage space (11) for refrigerated goods and a cold air distribution area (50) with a cold air distribution system (51) arranged therein, and with a first visible surface (31) formed by the cover (30) and facing an access opening (7) of the interior (10) ), the cold air distribution system (51) has a vertical cold air duct section (60) extending in the direction of a ceiling wall (4), which is arranged in the longitudinal direction essentially parallel to the rear wall (5), and has at least one of the vertical cold air duct section (60) branching in the direction of a left (3) or right side wall (9) extending horizontal cold air duct section (70), which in the longitudinal direction essentially pa is arranged parallel to the rear wall (5). The horizontal cold air duct section (70) and the vertical cold air duct section (60) are arranged offset in the depth direction (T) of the interior (10), with a longitudinal extension of the vertical cold air duct section (60) being at least partially behind the first visible surface (31) and one The longitudinal extent of the horizontal cold air duct section (70) is at least partially arranged in front of the first visible surface (31).

Description

The invention relates to a household refrigerator with a housing and an interior formed therein with a cover which extends along a rear wall of the interior and divides the interior into a storage space for refrigerated goods and a cold air distribution area with a cold air distribution system arranged therein.

The US 6,351,967 B1 discloses an air distribution system for a domestic refrigeration device which feeds cold air from the freezer area into the cooling area via various air outlets. The air is blown out through various air outlets on different levels in both the vertical and horizontal directions. The air outlets are fed with cold air through a large number of vertically running cold air ducts, which are hidden behind a cover and are not visible from the storage room. A cold air distribution system with a multitude of vertically running cold air channels on the rear wall of the cold room is complex and complex.

In order to make other components of the household refrigeration device more accessible for maintenance, other components of the household refrigeration device can also be arranged behind a cover on a rear wall of the refrigerator in addition to a cold air distribution system. Since the number of vertically running cold air channels increases the risk of freezing damage to the other components, there is a need for an improved cold air distribution system than that specified in the prior art.

It is an object of the present invention to provide a household refrigeration device with a cold air distribution system that is improved over the prior art.

The object is achieved by the features of claim 1. Further refinements are specified in the subclaims.

A household refrigeration device according to the invention comprises a housing and an interior space formed in the housing with a cover which extends along a rear wall of the interior and divides the interior into a storage space for refrigerated goods and a cold air distribution area with a cold air distribution system arranged therein, and with a first visible surface formed by the cover and facing an access opening of the interior, the cold air distribution system has a vertical cold air duct section extending in the direction of a ceiling wall , which is arranged in the longitudinal direction essentially parallel to a rear wall, and has a horizontal cold air channel section branching off from the vertical cold air duct section and extending in the direction of a left or right side wall, which is arranged in the longitudinal direction essentially parallel to a rear wall, the horizontal cold air duct section and the vertical cold air duct section is arranged offset in the depth direction of the interior, and wherein a longitudinal extension of the vertical cold air duct section zumi nd is partially arranged behind the first visible surface and a longitudinal extension of the horizontal cold air duct section is at least partially arranged in front of the first visible surface.

It is the advantage that horizontally extending air supply ducts branch off from only one vertically extending main air duct and lead the cold air to a large number of air outlets in the widthwise direction of the interior or in the horizontal direction of the domestic refrigeration appliance. As a result, a more uniform cold air distribution and a more uniform temperature distribution, both in the vertical and in the horizontal direction of the storage space, can be represented by a single vertical main air duct.

In addition, the vertical and horizontal cold air duct, which is offset in the depth direction of the interior, provides sufficient space for the arrangement of other components, in particular inlets and outlets to the other components, of the household refrigeration device without excessive storage volume being lost or the risk of freeze damage is increased. Correspondingly, supply lines or discharge lines to refrigeration, electrical or water-carrying components or components can be securely laid between the horizontal cold air duct section and the rear wall of the interior. The components are only accessible for maintenance work by removing the cover from the storage room.

Another advantage is that an improved air distribution and thus a more uniform temperature distribution can be represented in a storage room for refrigerated goods. A higher number of air outlets in the storage room enables a more uniform distribution of the cold air both in the height direction or vertical direction of the storage room and in the width direction or horizontal direction of the storage room. The integration of the air guide geometry according to the invention into the existing cold air distribution system is particularly advantageous. In this way, expensive additional parts can be dispensed with and assembly time and assembly costs can be saved. Attaching the cold air ducts or the air guiding elements on the back of the cover has the advantage that technical components of the household refrigeration device are hidden or cannot be seen from the storage room. Furthermore, by arranging the horizontal and vertical cold air duct section offset in the depth direction of the interior, interference geometries or other components concealed on the rear side can also be avoided in a simple manner.

A household refrigerator should in particular be understood to mean that food can be preserved for a longer period of time by cooling.

A “visible surface” is to be understood in general as a surface of the cover which faces the access opening of the interior and is in the user's field of vision when looking into the storage space. The first visible surface is preferably a surface of a cover section facing the access opening. Even if a flat surface of the cover is always desired for design reasons, the cover usually has protrusions or protruding surfaces. Therefore, the first visible surface or the first cover section is to be formed by the visible surface of the cover, which in terms of surface area has the majority, majority or main part of the cover. The second visible surface should be formed by the visible surface of the cover, which has a smaller surface area than the first visible surface.

“Cover” is to be understood in particular as an intermediate wall or cold air duct cover. This cover preferably completely covers the rear wall of the interior. As a result, in addition to the cold air distribution system, other parts and components of the domestic refrigeration device are also hidden behind the cover.

A "vertical cold air duct section" is to be understood in particular as a cold air duct section which is directed in the direction of the ceiling wall of the interior. Accordingly, an air flow forms in the vertical cold air duct section, which runs parallel to the rear wall and flows in the direction of the ceiling wall of the interior.

A “horizontal cold air duct section” is to be understood in particular to mean a cold air duct section which is directed in the longitudinal direction in the direction of a left or right side wall. Accordingly, an air flow forms in the horizontal cold air duct section, which runs parallel to the rear wall of the interior and flows in the direction of a left or right side wall of the interior. It is therefore possible for the air flow to flow in the direction of one of the two side walls or left and right side wall of the interior. However, it is also possible for a large number of horizontal cold air duct sections to be arranged in the interior, a first horizontal cold air duct section forming an air flow in the direction of the left side wall of the interior and a second horizontal cold air duct section forming an air flow in the direction of the right side wall of the interior. The first and second horizontal cold air duct sections both branch off from the vertical cold air duct section.

The “longitudinal direction” is to be understood in particular as the direction of the longest extension of something. In the sense of the invention, the direction of the longest extension of the vertical cold air duct section and horizontal cold air duct section.

According to a further embodiment of the invention, the longitudinal extension of the vertical cold air duct section can be arranged completely behind the first visible surface and the longitudinal extension of the horizontal cold air duct section completely in front of the first visible surface. This has the advantage that sufficient space is available between the horizontal cold air duct section and the rear wall of the interior for the arrangement of other components of the household refrigeration device without excessive storage volume being lost or the risk of freezing damage being increased. As a result, frost damage, particularly in the case of water-bearing components, can be reduced or avoided entirely by simply designing the cold air distribution system.

According to one embodiment of the invention, the predominant part of the horizontal cold air duct section can adjoin the ceiling wall with its longitudinal extent and open into an air outlet to the storage room. On the one hand, this has the result that the horizontal cold air duct section and a correspondingly projecting area on the cover are arranged outside the direct field of vision for the customer, and on the other hand it is achieved that the horizontal cold air duct section is arranged in an area of the interior which is difficult to access is of little use to the user for the storage of refrigerated goods. The central air outlet preferably also borders on the ceiling wall or is at least arranged in the vicinity of the ceiling wall. The off-side air outlet is preferably arranged closer to a left or right side wall of the interior than to a virtual vertical center plane of the cover. This ensures a homogeneous temperature distribution even in the width direction of the storage room. In addition, the cold air discharged from the air outlets in the vicinity of the ceiling wall can sink through natural convection in the storage room and, with simple means, ensure a balanced temperature distribution or temperature stratification in the storage room. Accordingly, it is conceivable that air outlets in the vicinity of the ceiling wall could be sufficient to enable a balanced temperature distribution or temperature stratification, at least in the width direction of the storage room. Another advantage is that cold air is discharged into an area of the storage space that is less useful as a storage location due to poor accessibility from the access opening. Accordingly, the cold air flowing out of the air outlets cannot cause overcooling or even frost damage to the stored goods.

According to one embodiment of the invention, the cover can substantially completely cover the rear wall. In order to present an optically high-quality and appealing appearance and to hide unevenness on the back wall, it is advantageous that the back wall is completely hidden by a high-quality and optically appealing panel in the form of a cover.

According to a further embodiment of the invention, a main air flow in the vertical cold air duct section can flow essentially perpendicular to a ceiling wall of the interior and a partial air flow essentially in the horizontal cold air duct section be flowable parallel to the ceiling wall of the interior. This has the advantage that the at least one horizontal cold air duct section is fed with cold air from a central main air flow. The vertical cold air duct section can thus supply a large number of horizontal cold air duct sections with cold air.

According to one embodiment of the invention, a connecting section can be arranged between the vertical cold air duct section and the horizontal cold air duct section, which intersects a first visible surface plane formed by the visible surface and connects the vertical cold air duct section and the horizontal cold air duct section. Because the vertical cold air duct section and the horizontal cold air duct section are arranged offset in the depth direction of the interior, it is necessary for a connecting section to bridge or compensate for this difference in the depth direction. The connecting section advantageously has an arcuate contour in its cut surface, which bridges the difference in depth of the cold air ducts. This has the advantage that a transition between the cold air duct sections offset in the depth direction of the interior is made possible with simple and inexpensive means and a deflection of the air flow in the direction of the access opening of the interior as well as in the direction of the left or right side wall is effected.

According to an embodiment of the invention, a second visible surface can be formed by a second cover section of the cover and the first visible surface can be formed by a first cover section of the cover, the second cover section being arranged closer to the access opening than the first cover section. It is thereby achieved that the horizontal cold air duct section, which projects into the storage space, is also hidden by the cover. In addition, there is the advantage that the horizontal cover section hidden by the second cover section takes up volume from the storage space, but additional storage space can be created by the offset of the first cover section in the depth direction of the interior.

According to one embodiment of the invention, the second visible surface or the second cover section can be designed inclined to the first visible surface or to the first cover section. The inclination of the second cover section in relation to the first cover section ensures a pleasant transition, so that the user feels the transition less disturbing and less perceives the projecting second cover section. Gaps and pronounced edges, which promote the deposition of contaminants, are also avoided, and the transition is provided outside the direct field of vision of a user. Due to the inclined second visible surface or the inclined second cover section, the horizontal cold air duct section also takes up less of the storage volume of the storage room. Furthermore, due to the inclined design of the second visible surface or of the second cover section relative to the first visible surface or first cover section, less deflection of the air flow or partial air flow is necessary, so that the flow resistance in the cold air distribution system is reduced.

According to one embodiment of the invention, the predominant part of the horizontal cold air duct section can be arranged behind the second cover section and in front of the first cover section, preferably the horizontal cold air duct section can be arranged completely behind the second cover section and in front of the first cover section. This has the advantage that the horizontal cold air duct section cannot be seen from the storage room or is hidden behind the second cover section. Accordingly, there is a more aesthetic appearance of the storage room, since functional elements on the rear wall, such as the cold air distribution system, water tank, light elements and corresponding supply and discharge lines therefor, are covered by a cover or are not visible to a user from the storage room.

According to one embodiment of the invention, the first cover section or the first visible surface and the second cover section or the second visible surface can be formed in one piece. This has the advantage that the cold air distribution system, comprising the vertical cold air duct section and the horizontal cold air duct section, is hidden behind a cover formed from one piece. The cover, which is formed in one piece, has no gaps or connection points, so that the rear wall of the storage space is given a visually appealing and high-quality appearance for the customer and is less susceptible to the accumulation of contaminants. Furthermore, mounting a one-piece cover on the rear wall of the interior can save a lot of assembly time and assembly costs, since the functional components between the rear wall of the interior and the Cover can be covered or accessed by assembling or disassembling a single component.

According to one embodiment of the invention, the longitudinal extent of the horizontal cold air duct section can be arranged between a first visible surface plane formed by the first visible surface and a visible surface plane formed by the second visible surface. The second visible surface plane is preferably inclined to the first visible surface plane, so that the major part of the horizontal cold air duct section is arranged between the first visible surface plane and the second visible surface plane. The first visible surface plane and the second visible surface plane form an angle or form an acute angle in which the horizontal cold air duct section extends in the direction of a left or right side wall of the interior. The acute angle or the included angle between the first visible surface plane and the second visible surface plane faces an access opening of the interior.

According to one embodiment of the invention, the second visible surface can directly adjoin a ceiling wall of the interior. Because the second visible surface, which hides the horizontal cold air duct section behind it and has at least one central and one off-side air outlet, directly adjoins a ceiling wall of the interior, the cold air flows in the area of the ceiling wall into the upper area of the storage space for refrigerated goods. Correspondingly, the cold air can sink towards the bottom wall, which enables a balanced and homogeneous temperature distribution in the width direction and in the height direction of the storage room. Of course, it is not excluded that further visible surfaces or further cover sections protrude from the surface of the first visible surface or first cover section, behind which further horizontal cold air duct sections or other components of the household refrigeration device can be arranged or hidden.

According to one embodiment of the invention, a central air outlet and the side air outlet can be arranged or integrated in the cover, a first partial air stream branching off from the main air stream being able to flow out into the storage space through the central air outlet and a second partial air stream branching off the main air stream over the horizontal one Cold air duct section through the remote air outlet can flow out into the storage room. This has the advantage that both an air outlet is arranged in a central area of the storage room and is also arranged in an off-side area of the vertical cold air duct section or is arranged in the vicinity of the left or right side wall of the storage room. Accordingly, a homogeneous temperature distribution can be generated both in the longitudinal extension of the vertical cold air duct section and in the longitudinal extension of the horizontal cold air duct section in the storage room. The horizontal cold air duct section branches off from the vertical cold air duct section in order to produce a homogeneous temperature distribution or temperature stratification in the width direction of the storage room, so that no additional vertical air duct elements extending in the height direction of the storage space behind the cover or separate vertical air duct elements have to be provided.

According to one embodiment of the invention, the central air outlet and the off-side air outlet can be arranged in the second visible surface or in the second cover section. Since the second visible surface level is arranged in the vicinity of the ceiling wall or directly adjoins the ceiling wall, a homogeneous temperature distribution or temperature stratification can be formed in the width direction of the storage room. The outflowing cold air from the central air outlet, which is arranged centrally in the storage room and can be fed directly from the vertical cold air duct section, and the off-side air outlet, which is arranged laterally or in the vicinity of the left or right side wall of the interior and can be fed from the horizontal cold air duct section , is omitted in the vicinity of the ceiling wall of the interior, preferably in the vicinity of a corner area between the ceiling wall and the rear wall of the interior. Thus, the cold air of the cold air distribution system can be distributed over the entire width of the storage room and the cold air flowing into the storage room can gradually sink from the ceiling wall of the interior to the floor wall. Accordingly, a balanced or homogeneous temperature distribution is formed both in the width direction and in the height direction of the storage room.

According to one embodiment of the invention, a divider can be arranged in the region of the connecting section, the volume of the main air flow in the vertical cold air duct section being divisible by the divider between the central air outlet and the air outlet on the side. This ensures that the main air flow in the vertical cold air duct section can be divided by volume with simple and inexpensive means. This can be done by means of integrated projections or by corresponding radii in the thermal insulation forming the cold air distribution system. An air flap system can also be provided, which divides the volume of the main air flow in the vertical cold air duct section into the central air outlet and the air outlet on the side.

According to one embodiment of the invention, a first heat insulation section can be arranged between the cover and the vertical cold air duct section and a second heat insulation section between the cover and the horizontal cold air duct section, the first heat insulation section and the second heat insulation section being connected to one another in a form-fitting manner by a plug connection. It is thereby achieved that the heat insulation section forming the vertical cold air duct section and the heat insulation section forming the horizontal cold air duct section can be produced with simple and inexpensive means. Thus, the first heat insulation section and the second heat insulation section can be formed by a plug-in connection, snap-in connection or generally by contours that can be plugged into one another in a form-fitting manner. This has the advantage that a vertically running cold air duct section and a horizontally running cold air duct section can be sealed off from the storage space with thermal insulation using simple and inexpensive means, so that the formation of condensation on the first and second visible surfaces facing the storage space is kept as low as possible. The thermal insulation layer is usually made of an extruded polystyrene, but can also be made of other materials, such as Polyurethane panels, airgel, vacuum insulation panels, with similar thermal insulation properties.

According to one embodiment of the invention, the horizontal cold air duct section can be formed by the cover. In this way, expensive additional parts can be dispensed with and assembly time and assembly costs can be saved. Since the horizontal cold air duct section is only the last section of the air duct to the storage room, thermal insulation in the region of the horizontal cold air duct section can also be dispensed with under certain circumstances.

According to one embodiment of the invention, the horizontal cold air duct section can extend along a corner region between the ceiling wall and rear wall. Corresponding corner areas of a storage room or interior are not particularly well suited for the storage of stored goods, since these are difficult for the customer to access from the access opening. As a result, these areas or corner areas of the interior can be used for functional components, such as air-carrying, electrical or water-carrying components, of the household refrigeration device without losing any usable storage volume of the storage space.

With the information "top", "bottom", "front", "back," horizontal "," vertical "," depth direction "," width direction "," height direction "etc., these are in accordance with the intended use and arrangement of the device and at to a given position and orientation given in front of the device and looking in the direction of the device.

Further features of the invention result from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respectively specified combination, but also in other combinations, without the scope of the invention leave. Embodiments of the invention are thus also to be regarded as encompassed and disclosed, which are not explicitly shown and explained in the figures, but which emerge and can be generated from the explained embodiments by separate combinations of features. Designs 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. Furthermore, versions and combinations of features, in particular those explained above, are to be regarded as disclosed, which go beyond or differ from the combinations of features set out in the references of the claims.

Fig. 1

eine Frontansicht eines erfindungsgemäßen Haushaltskältegeräts;

Fig. 2

zeigt eine Frontansicht einer Abdeckung des erfindungsgemäßen Haushaltskältegerätes;

Fig. 3

eine vertikale Schnittdarstellung durch das erfindungsgemäße Haushaltskältegerät gemäß Fig. 1;

Fig. 4

eine horizontale schematische Schnittdarstellung des erfindungsgemäßen Haushaltskältegeräts;

Fig. 5

eine Rückansicht einer ersten Ausführungsform der Abdeckung des erfindungsgemäßen Haushaltskältegeräts;

Fig. 6

eine Rückansicht einer zweiten Ausführungsform der Abdeckung des erfindungsgemäßen Haushaltskältegeräts.

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

Fig. 1

a front view of a household refrigerator according to the invention;

Fig. 2

shows a front view of a cover of the household refrigerator according to the invention;

Fig. 3

a vertical sectional view through the household refrigerator according to the invention Fig. 1 ;

Fig. 4

a horizontal schematic sectional view of the household refrigerator according to the invention;

Fig. 5

a rear view of a first embodiment of the cover of the household refrigerator according to the invention;

Fig. 6

a rear view of a second embodiment of the cover of the household refrigerator according to the invention.

Identical or functionally identical elements are provided with the same reference symbols in the figures.

In Fig. 1 a front view of a household refrigeration device 1 according to the invention is shown. The household refrigerator 1 is formed by a housing 2, which forms an interior 10. The interior 10 has a cover 30, which separates a cold air distribution system 51 (not shown here) from a storage room 11 for stored goods to be cooled. The interior 10 has a left 3 and right side wall 9, a top wall 4, a bottom wall 6 and a rear wall 5, not shown here. The cover 30 is arranged at a distance from the rear wall 5 and covers it substantially completely. The storage room 11 is generally used for frost-free cooling of refrigerated goods, preferably at temperatures between +4 and +8 ° C. However, the storage compartment 11 can also be designed as a zero degree compartment, in particular for keeping fruit or vegetables fresh, and have a storage temperature of close to 0 °. However, the storage room 11 can also be designed as a multifunctional compartment and storage temperatures of below 0 ° C. and above 0 ° C. can be shown. A temperature range of, for example, from -18 ° C. to +14 ° C. can thus be represented in this storage room 11. The storage room 11 can also be designed for freezing stored goods and preferably have a storage temperature of -18 ° C to -14 ° C.

In the storage room 11, shelves 15 are arranged for storing the stored goods. These shelves 15 are preferably on the rear wall 5 of the interior 10 or on the cover 30 secured by an appropriate holding device. In the lower area of the storage room 11 or the bottom area of the storage room 11, bearing shells 16 are arranged which are suitable for storing fruit and vegetables or meat and fish.

The household refrigeration device shown has an air circulation system, not shown here, with which cold air is fed into the storage space 11 from an evaporator arranged in a freezer area via various air outlets 40, 41. The cold air is blown out via various air outlets 40, 41 on the various levels in both the vertical and horizontal directions. This blowing out is carried out by so-called cold air distribution systems 51, which have corresponding air outlets 40, 41 and possibly integrated control flaps. The first air outlets 40 are located in a central area or near the central axis M of the cover 30. The air outlet 41 on the side is located away from the central axis M in the vicinity of the right side wall 9. The cold air distribution system 51 is hidden behind the cover 30 and from the storage room not visible. This results in a more appealing appearance of the storage room 11, since functional elements and elevations are largely invisible from the storage room 11. A fan, not shown here, is usually used to circulate the cold air coming from an evaporator to the storage room 11.

In the interior 10 there is an ice compartment 25 for the production of ice cubes and a water filter 26 for filtering the water of a water distribution system. The water filter 26 and the ice compartment 25 are fed with water from a water distribution system, not shown here. A corresponding water tank 20 and water pipes 21 are hidden behind the cover 30 and cannot be seen from the storage room 11.

So that the customer can also access the refrigerated goods stored in the storage room 11, an access opening 7 is formed, which can be closed when the household refrigeration device is not in use with a heat-insulated and pivotally hinged door (not shown here).

In Figure 2 a front view of a cover 30 of the household refrigerator according to the invention is shown. The cover 30 has air outlets 40 which are arranged in a central or central region or in the vicinity of the central axis M of the cover 30. The air outlets 40 are provided so that an adequate supply of cold air is possible at different levels in the height direction of the storage room 11. Accordingly, a homogeneous and uniform temperature distribution or temperature stratification in the height direction of the storage room 11 can be guaranteed or represented. The cover 30 has a first visible surface 31 and a second visible surface 32. In terms of area, the first visible surface 31 forms the majority of the cover 30. The second visible surface 32 is formed on a premature edge region of the cover 30, which adjoins a ceiling wall 4 of the interior 10, not shown here. In the first visible surface 31, central air outlets 40 are arranged in the area of a central axis of the cover 30, which vent the air at various points in the height direction of the storage room 11. The central air outlets 40 are also arranged in the second visible surface 32 in order to let cold air into the storage space 11 in the vicinity of a ceiling wall 4 of the interior 10 not shown here in the area of the central axis M. An off-side air outlet 41 is arranged in a lateral area or off-side area of the central axis M of the cover 30 and in the second visible surface 32 of the cover 30. The air outlet 41 on the side is provided to supply the storage space 11 with cold air with cold air also away from a central or central axis M of the cover 30. Accordingly, a homogeneous temperature distribution can be represented both in the height direction and in the width direction of the storage room 11.

In Figure 3 a vertical sectional view of the household appliance 1 according to the invention is shown. In comparison to Figure 1 and 2nd show the Figure 3 also an installation space 80 with a water tank 20 and water pipes 21, which are arranged between the rear wall 5 of the interior 10 and the cover 30. The water tank 20 is part of a water supply system, which feeds a water outlet (not shown in detail) in the door of the domestic refrigeration appliance 1 with cold water filtered through a water filter 26 and feeds the ice compartment 25 with water for the production of ice cubes.

Next shows Figure 3 an interior 10, which through the cover 30 into a cold air distribution area 50 and a storage room 11 or storage area for storing refrigerated goods is divided. The cover 30 thus forms a boundary between the storage space 11 available for storing refrigerated goods and a cold air distribution area 50 available for distributing the cold air. A cold air distribution system 51 and functional components, such as, for example, water tank 20, water lines 21, electrical or cold technical components, of the domestic refrigeration device 1 are arranged in the cold air distribution area 50.

Further points Figure 3 a first visible surface 31 or first cover section 33 of the cover 30 and a second visible surface 32 or second cover section 34 of the cover 30, which are formed at an angle or inclined to one another. The first visible surface 31 is arranged at a distance from the rear wall 5. Water-carrying components, such as a water tank 20 and water pipes 21, are arranged in an installation space 80 between the first visible surface 31 and the rear wall 5. A horizontal cold air duct section 70 extends substantially perpendicularly to a vertical cold air duct section 60, which is not shown here and extends essentially in the height direction of the interior 10. The horizontal cold air duct section 70 extends at the level of the second visible surface 32 of the cover 30 and is adjacent to a ceiling wall 4 Interior 10 on. The horizontal cold air duct section 70 extends in its longitudinal direction between a first visible surface plane 311 and a second visible surface plane 321. The horizontal cold air duct section 70 is accordingly essentially completely in front of a plane formed by the first visible surface 31 of the cover 30, but behind a plane formed by the first visible surface 32 formed plane, which is arranged inclined to the first visible surface plane 311.

The horizontal cold air duct section 70 also runs along a corner region 8, which is arranged between the ceiling wall 4 of the interior 10 and the rear wall 5 of the interior 10. The corner areas of a storage room 11 or general interior space 10 are not particularly well suited for the storage of refrigerated goods, since they are difficult for the customer to access from the access opening 7. Correspondingly, these areas or these corner areas 8 of the interior 10 can be used particularly well for the arrangement of functional components, such as air-carrying, electrical or water-carrying components, of the household refrigeration device 1, since as a result no usable storage volume of the storage space 11 is lost.

In Figure 4 A horizontal schematic sectional illustration of the household refrigeration device 1 according to the invention is shown. Compared to the previous figures Figure 4 a vertical cold air duct section 60 which feeds a horizontal cold air duct section 70 with cold air which, coming from an evaporator (not shown here), is discharged into the storage space 11 via the air outlet 41 on the side. The horizontal cold air duct section 70 is arranged offset in the depth direction T of the interior 10 relative to the vertical cold air duct section 60. Correspondingly, the horizontal cold air duct section 70 is spaced further from the rear wall 5 than the vertical cold air duct section 60 or projects further into the storage space 11 than the vertical cold air duct section 60. So that the horizontal cold air duct section cannot be seen from the storage space 11, the second visible surface 32 or the second cover section 34 the horizontal cold air duct section 70. Between the horizontal cold air duct section 70 and the vertical cold air duct section 60 there is a connecting section 90 which connects the two cold air duct sections with one another in terms of flow. A partial air flow 48 branching off from the main air flow 46 in the vertical cold air duct section 60 intersects a first visible surface plane 311 (not shown here) and is directed by the connecting section 90 into a horizontal course in the width direction B or in the direction of the left 3 or right side wall 9 of the interior 10. So that the main air flow flowing in the vertical cold air duct section 60 is divided between the air outlets 40, 41, there is a divider 65 in the vicinity of the connecting section 90. The divider 65 is preferably formed from a projection formed in the heat insulation layer 62, which protrudes into the vertical cold air duct section 60 .

In Figure 4 it can be seen in more detail that the installation space 80, in which the water tank 20 and water pipes 21 are arranged, are arranged between the horizontal cold air duct section 70 and the rear wall 5. This makes it possible for water pipes 21 or the water tank 20 to intersect in their course on the rear wall 5. Since frost damage can occur due to thermal influences of the horizontal cold air duct section 70 on the water pipes, a sufficient distance or a heat insulation layer 62 between the cold air duct section 70 and the water-carrying components 20, 21 arranged in the installation space 80 is necessary. Since the horizontal cold air duct section 70 is offset in the depth direction of the interior 10 from the vertical cold air duct section 70 or a greater distance from the rear wall 5 of the interior 10 as the vertical cold air duct section 60, the laying of water-carrying components 20, 21 and cold air-carrying components 60, 70 on the rear wall 5 is possible. It is even possible that they cross on the rear wall 5 or in the cold air distribution area 50 without the risk of frost damage. It is thereby achieved that a balanced temperature distribution in the storage space 11 is possible and the arrangement of water-carrying components 20, 21 in a cold air distribution area 50 covered by the cover 30.

In Figure 5 A rear view of a first embodiment of the cover 30 of the household refrigeration device 1 according to the invention is shown. Compared to the previous one Figures 1-4 This embodiment shows a main air flow 46 flowing in the vertical cold air duct section 60, which is divided by the divider 65 into a first partial air flow 47 and a second partial air flow 48. The first partial air flow 47 is discharged through a central air outlet 40 into the storage space 11. For this purpose, the first partial air flow 47 is brought from a vertical orientation into a horizontal orientation and is discharged into the storage space 11 in the direction of the access opening 7. The second partial air flow 48 is directed by the connecting section 90 in an orientation initially directed in the horizontal direction to the access opening 7 and after the second partial air flow 48 has intersected a plane 311 defined by the first visible surface 31, the connecting section 90 directs the second partial air flow 48 in the horizontal direction Cold air duct section 70 in the direction of a right side wall 9 of the interior, not shown here. It is of course also possible for the second partial air flow 48 to be steerable in the direction of a left side wall 3, not shown here, by the connecting section 90. It is also possible for partial air flows 48 to be directed by a connecting section 90 in the direction of a left side wall 3 and a right side wall 9 of the interior 10. The partial air flow 48 in the horizontal cold air duct section 70 can be blown out into the storage space 11 through the air outlet 41 on the side. A large number of air outlets 40 and the air outlet 41 on the side are formed as openings in the region of the second visible surface 32, the air outlet 41 on the side being arranged in an edge region of the cover 30 to one of the side walls 3 and the air outlets 40 in a more central or middle region of the cover 30 are arranged.

Next is in Figure 5 a heat insulation layer 62 is shown, which is arranged between the cover 30 and a rear wall 5, not shown here, of the interior 10.

The heat insulation layer 62 forms the cold air distribution system 51, which is formed from a vertical cold air duct section 60 and a cold air duct section 70 running horizontally parallel to a rear wall 5, not shown here. The heat insulation layer 62 has a first heat insulation section 621 and a second heat insulation section 622. The vertical cold air duct section 60 is formed in the first heat insulation section 621 and the cold air duct section 70 which runs horizontally parallel to a rear wall 5, which is not shown here, is formed in the second heat insulation section 622. The first heat insulation section 621 and the second heat insulation section 622 are positively connected to one another. The form-fitting connection can be implemented using simple and inexpensive means, for example by means of a plug-in connection, snap-in connection or generally by means of contours which can be positively plugged together at the edge regions of the first heat insulation section 621 and the second heat insulation section 622.

The cover 30 is formed by a first visible surface 31, which is arranged essentially parallel to a rear wall 5 of the interior 10, not shown here, and by a second visible surface 32, which is inclined to the first visible surface 31 or to a rear wall 5, not shown here is arranged. The inclination of the second visible surface 32 allows the cover 30 covering the rear wall 5 to be given an aesthetic appearance. Correspondingly pronounced gaps or edges, which promote the deposition of contaminants, are not formed in the cover 30, at most outside the direct field of vision of a user when viewing the storage space 11 from the access opening 7. Due to the inclined second visible surface 32, the horizontal cold air duct section 70 also takes up less of the storage volume of the storage space 11. Due to the inclined design of the second visible surface 32 relative to the first visible surface 31, less deflection of the partial air flow 47 is necessary, so that the flow resistance in the cold air distribution system 51 can be kept lower.

Next is in Figure 5 a connection section 90 is arranged between the vertical cold air duct section 60 and the horizontal cold air duct section 70. The connecting section 90 deflects a partial air flow 48 branching off from the main air flow from the vertical cold air duct section 60 into the horizontal cold air duct section 70. Due to a correspondingly arcuate contour of the connecting section 90, the Flow resistances are kept low. The connecting section 90 guides the partial air flow 48 branching off from the main air flow 46 from an area behind the visible surface 31 or between a rear wall 5 (not shown here) and the first visible surface 31 into an area in front of the first visible surface 31 or between the storage space 11 and the first visible surface 31. Correspondingly, the horizontal cold air duct section 70 is arranged in front of the first visible surface 31 or between the first visible surface 31 and the storage space 11, and the vertical cold air duct section 60 is arranged between a rear wall 5, not shown here, of the interior 10 and the first visible surface 31 or behind the first Visible surface 31 arranged.

In Figure 6 a rear view of a second embodiment of the cover of the household refrigeration device 1 according to the invention is shown. In this embodiment, the horizontal cold air duct section 70 is formed as an integral part of the cover 30. The horizontal cold air duct section 70 is accordingly formed by walls formed with the cover 30, which define a horizontal cold air duct section 70. Sufficient for this is a first wall projecting perpendicularly from the cover 30 or the first visible surface 31 of the cover 30 and then a second wall standing perpendicular to the first wall. The first wall and second wall formed on the cover 30 enclose a volume through which a partial air flow 48 branching off from a main air flow 46 can flow to an off-side air outlet 41 arranged away from the central region of the cover 30.

Reference symbol list

1

Household refrigerator

2nd

casing

3rd

left side wall

4th

Ceiling wall

5

Back wall

6

Bottom wall

7

Access opening

8th

Corner area

9

right side wall

10th

inner space

11

storage room

15

Shelves

16

Bearing shells

20th

Water tank

21

Water pipes

25th

icebox

26

Water tank

30th

cover

31

first visible area

311

first visible plane

32

second visible surface

321

second visible surface level

33

first cover section

34

second cover section

40

central air outlet

41

remote air outlet

46

Main airflow

47

first partial air flow

48

second partial air flow

50

Cold air distribution area

51

Cold air distribution system

60

vertical cold air duct section

62

Thermal insulation layer

621

first heat insulation section

622

second heat insulation section

623

Connector

65

Divider

70

horizontal cold air duct section

80

Installation space

90

Connecting section

M

Central axis

T

Depth direction

B

Width direction

H

Height direction

Claims (15)

Household refrigeration device (1) with a housing (2) and an interior (10) formed in the housing (2) with a cover (30) which extends along a rear wall (5) of the interior (10) and the interior (10) divided into a storage space (11) for refrigerated goods and a cold air distribution area (50) with a cold air distribution system (51) arranged therein, and with a first visible surface (31) formed by the cover (30) and facing an access opening (7) of the interior (10) ), the cold air distribution system (51) has a vertical cold air duct section (60) extending in the direction of a ceiling wall (4), which is arranged in the longitudinal direction essentially parallel to the rear wall (5), and has at least one of the vertical cold air duct section (60) branching in the direction of a left (3) or right side wall (9) extending horizontal cold air duct section (70), which in the longitudinal direction essentially pa is arranged parallel to the rear wall (5), characterized in that the horizontal cold air duct section (70) and the vertical cold air duct section (60) are arranged offset in the depth direction (T) of the interior (10), with a longitudinal extension of the vertical cold air duct section (60) is arranged at least partially behind the first visible surface (31) and a longitudinal extension of the horizontal cold air duct section (70) is arranged at least partially in front of the first visible surface (31). Domestic refrigeration appliance (1) according to claim 1, characterized in that the horizontal cold air duct section (70) at least with its predominant part of its longitudinal extent adjoins the ceiling wall (4) and opens into an air outlet (41) to the storage room (11). Domestic refrigeration appliance (1) according to one of the preceding claims, characterized in that the cover (30) essentially completely covers the rear wall (5). Domestic refrigeration appliance (1) according to one of the preceding claims, characterized in that a main air flow (46) in the vertical cold air duct section (60) can flow substantially perpendicular to a ceiling wall (4) of the interior (10) and a partial air flow (47) from the vertical cold air duct section (60) in the horizontal cold air duct section (70) can be flowed essentially parallel to the ceiling wall (4) of the interior (10). Domestic refrigeration appliance (1) according to claim 4, characterized in that between the vertical cold air duct section (60) and the horizontal cold air duct section (70) a connecting section (90) is arranged which intersects a first visible surface plane (311) formed by the first visible surface (31) and connects the vertical cold air duct section (60) and the horizontal cold air duct section (70). Domestic refrigeration appliance (1) according to one of the preceding claims, characterized in that a second visible surface (32) is formed by a second cover section (34) of the cover (30) and the first visible surface (31) by a first cover section (33) of the cover (30) is formed, the second cover section (34) being arranged closer to the access opening (7) than the first cover section (33). Domestic refrigeration device (1) according to claim 6, characterized in that the second cover section (34) is inclined to the first cover section (33). Domestic refrigeration appliance (1) according to one of claims 6 to 7, characterized in that the major part of the horizontal cold air duct section (70) is arranged behind the second cover section (34) and in front of the first cover section (33), preferably that the horizontal cold air duct section (70 ) is arranged completely behind the second cover section (34) and in front of the first cover section (33). Domestic refrigeration appliance (1) according to one of claims 6 to 8, characterized in that the first cover section (33) and the second cover section (34) are integrally formed. Domestic refrigeration appliance (1) according to one of claims 6 to 9, characterized in that the longitudinal extent of the horizontal cold air duct section (70) between a first visible surface plane (311) formed by the first visible surface (31) and a visible surface plane formed by the second visible surface (32) (321) is arranged. Domestic refrigeration appliance (1) according to one of the preceding claims 6 to 10, characterized in that the second cover section (34) is adjacent to a ceiling wall (4) of the interior (10). Domestic refrigeration appliance (1) according to one of the preceding claims, characterized in that a central air outlet (40) and the side air outlet (41) are formed in the cover (30), a first partial air stream (47) branching off from the main air stream (46). can flow out through the central air outlet (40) into the storage space (11) and a second partial air flow (48) branching off from the main air flow (46) can flow out into the storage space (11) via the horizontal cold air duct section (70) through the air outlet (41) on the side is. Domestic refrigeration appliance (1) according to claim 12, characterized in that the central air outlet (40) and the air outlet on the side (41) are arranged in the second visible surface (32). Domestic refrigeration appliance (1) according to one of claims 12 to 13, characterized in that a divider (65) is arranged in the region of the connecting section (90), the main air flow (46) in volume in the vertical cold air duct section (60) through the divider (65) on the central air outlet (40) and the remote air outlet (41) can be divided. Domestic refrigeration device (1) according to one of the preceding claims, characterized in that a first heat insulation section (621) between the cover (30) and the vertical cold air duct section (60) and a second heat insulation section (622) between the cover (30) and the horizontal cold air duct section (70) are arranged, the first heat insulation section (621) and the second heat insulation section (622) being positively connected to one another by a plug connection (623).

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