WO2022069213A1

WO2022069213A1 - Domestic refrigeration appliance device and method for installing a domestic refrigeration appliance device

Info

Publication number: WO2022069213A1
Application number: PCT/EP2021/075193
Authority: WO
Inventors: Roland KÜMMEL; Robert Stahl; Herbert Weibl
Original assignee: BSH Hausgeräte GmbH
Priority date: 2020-09-29
Filing date: 2021-09-14
Publication date: 2022-04-07
Also published as: DE102020212260A1

Abstract

The invention relates to a domestic refrigeration appliance device (10a; 10b; 10c; 10d), in particular a domestic freezer appliance device, comprising at least one inner container element (12a; 12b; 12c; 12d); at least one outer container element (14a; 14c; 14d) which is arranged so as to overlap with the inner container element (12a; 12b; 12c; 12d) in at least one overlap region (16a; 16d); and at least one frame heating unit (18a; 18d), which is arranged in the overlap region (16a; 16d) at a rear (20a; 20b; 20c; 20d) of the inner container element (12a; 12b; 12c; 12d) at least in part between the latter and the outer container element (14a; 14c; 14d), characterised by at least one pressing element (22a; 22b; 22c; 22d), which is supported at at least one part (26a; 26d) of the inner container element (12a; 12b; 12c; 12d) and, in the installed state, presses the frame heating unit (18a; 18d) against the outer container element (14a; 14c; 14d).

Description

Household refrigeration appliance and method for assembling a household refrigeration appliance

The invention relates to a household refrigeration device, in particular a household freezer device, according to the preamble of claim 1, a household refrigeration device with a household refrigeration device according to claim 13, and a method for installing a household refrigeration device according to the preamble of claim 14.

A freezer is already known from the German patent application DE102009028789A1, which has a groove running in a frame part element for receiving a heating element. Furthermore, a household refrigeration appliance is known from the prior art, with an inner container element and with an outer container element, which is arranged overlapping the inner container element in an overlapping area, with a frame heating unit of the household refrigeration appliance being loosely inserted in the overlapping area.

The object of the invention consists in particular, but not limited thereto, in providing a generic device with improved properties with regard to a construction, in particular with regard to fixing and/or thermal contacting of at least one frame heating unit. The object is achieved according to the invention by the features of claims 1 and 14, while advantageous configurations and developments of the invention can be found in the dependent claims.

The invention is based on a household refrigeration appliance device, in particular a household freezer device, with at least one inner container element, with at least one outer container element, which is arranged so that it overlaps the inner container element in at least one overlapping area, and with at least one frame heating unit, which is arranged in the overlapping area on a rear side of the inner container element at least is partially arranged between this and the outer container element. It is proposed that the household refrigeration appliance device has at least one pressing element which is arranged in particular in the overlapping area and which is supported on at least part of the inner container element and presses the frame heating unit against the outer container element in an assembled state.

Such a design makes it possible in particular to provide a domestic refrigeration appliance, in particular a domestic freezer, with improved properties in terms of construction, specifically in particular with regard to fixing and/or thermal contacting of at least one frame heating unit. Furthermore, a domestic refrigerating appliance device can be provided by such a configuration, which ensures high reliability. In a particularly advantageous manner, the frame heating unit can be particularly well fixed and/or supported by the proposed solution. In particular, a defined contact of the frame heating unit with a side wall of the household refrigeration appliance can be ensured, which in particular increases reliability and/or user satisfaction. In a particularly advantageous manner, the proposed solution enables at least a double line contact of the frame heating unit to the side wall of the household refrigeration appliance, which further increases reliability and/or user satisfaction. In addition, improved properties with regard to heating by the frame heating unit, which are achieved by the proposed solution, lead to improved reliability and/or increased user satisfaction. In particular, it can be ensured that a door of the household refrigeration appliance can always be reliably opened and closed. In particular, freezing of the door to the body of the household refrigeration appliance device can be reliably avoided. Furthermore, damage to a door seal, which could be caused when the door is opened in the event of a seal frozen solid, can advantageously be avoided. Furthermore, as a result, condensation can be avoided or reduced, in particular in a contact area of the appliance door and the appliance body. Furthermore, unwanted condensation on the side wall of the device body can be avoided or reduced. Furthermore, cost efficiency in particular can be increased by such a configuration. Such a design particularly advantageously makes it possible to dispense with an additional component for fixing the frame heating unit, which in particular further improves the cost efficiency of the household refrigeration appliance device and also in particular assembly of the household refrigeration appliance device, in particular the frame heating unit, further simplified. Furthermore, manufacturing tolerances, in particular manufacturing tolerances of the frame heating and/or the inner container element and/or the outer container element, can be compensated for by such a configuration, which in particular ensures high reliability with regard to the assembly of the household refrigeration appliance device. Existing frame heating elements can continue to be used particularly advantageously thanks to the proposed construction. In particular, no changes to the existing frame heating elements are necessary in order to make use of the proposed invention. Furthermore, as a result, frame heating elements can be provided which have a small tube diameter, in which case the fixation of the frame heating elements can continue to be reliably ensured.

In this context, a "household refrigeration appliance device" is to be understood as at least a part, in particular a subassembly, of a household refrigeration appliance. In particular, the household refrigeration appliance device can also include the entire household refrigeration appliance Household refrigerator and/or preferably as a household freezer, such as in particular as a refrigerator, chest freezer, freezer, chest freezer, combined fridge-freezer and/or wine storage cabinet.

In particular, the domestic refrigeration appliance device comprises at least one appliance body, which in particular defines a usable space, in particular at least one cooling space, and in particular has an access opening. In particular, the inner container element and the outer container element are part of the device body. Specifically, the outer container element is in particular at least part of an outer housing of the household refrigeration appliance and preferably the entire outer housing of the household refrigeration appliance. Alternatively, it would be conceivable for the outer housing element to be a frame element, in particular one that runs around the access opening, it being possible for the frame element to be connected to the outer housing in one piece, for example. Alternatively, it would be conceivable for the outer housing element to be at least part of a side wall or preferably the entire side wall of the household refrigeration appliance. In particular, the inner container element is at least part of an inner housing of the household refrigeration device and preferably around the entire inner housing of the household refrigeration appliance. In particular, the inner container element delimits the usable space, advantageously from at least four sides and preferably from five sides. In addition, the inner container element could in particular provide storage elements, for example insertion openings for shelves or the like, for the usable space. In an assembled state, a volume region is advantageously formed between the inner container element and the outer container element, which is intended in particular to be filled with insulating foam for thermal insulation of the usable space.

The inner container element and the outer container element advantageously overlap in an overlapping area, which extends in the circumferential direction around the usable space. In particular, the overlapping area extends on at least two, preferably three and particularly preferably four sides in the circumferential direction around the usable space. In particular, the overlapping area extends, for example, at least 50%, advantageously at least 60%, particularly advantageously at least 70%, preferably at least 80% and particularly preferably completely around the two, preferably the three and particularly preferably the four sides in the circumferential direction around the usable space. For example, the overlapping area could be at least partially free of insulating foam in the assembled state. The overlapping area is arranged in particular on an edge around the usable space.

The household refrigeration appliance device has in particular at least one appliance closure element, which can be designed in particular as an appliance flap and/or preferably as an appliance door and can in particular be pivoted about a pivot axis, in particular about a horizontal axis and/or a vertical axis, in particular in relation to an installation position and/or an installed position , In particular relative to the device body can be stored. The device closure element is intended to at least partially thermally insulate the usable space in a closed state and to make the usable space, in particular the access opening, accessible for putting in and/or removing refrigerated goods in an open state. In particular, the device closure element is intended to open and close the access opening. In the closed state, the device closure element contacts the outer container element at least indirectly and advantageously directly in at least one contact area in the circumferential direction around the usable space. For example, the device could te closure element and / or the outer container element have at least one sealing element, which is arranged in the assembled state in particular between the device closure element and the outer container element. The contact area is in particular a contact surface of the sealing element, in particular of the door seal.

The frame heating unit adds heat to an object, in particular the device body and/or the device closure element, preferably the inner container element and/or the outer container element, and particularly preferably at least indirectly the sealing element, in particular in an operating state. In particular, the frame heating unit is intended to heat the contact area at least indirectly and preferably directly. The frame heating unit is preferably at least essentially tubular, preferably designed as a heating pipe, particularly preferably as a hot gas pipe, and is advantageously provided for receiving and/or guiding a heating fluid. An at least essentially tubular object is an elongated object, preferably a hollow body, which preferably has an opening at at least one end and particularly advantageously at both ends. The heating fluid is a fluid, in particular a liquid and/or preferably a gas. Any fluid considered appropriate by a person skilled in the art can be used as the fluid, such as heating gas, air, in particular ambient air, and/or a refrigerant. In particular, the frame heating unit uses heat, in particular waste heat from a refrigeration compressor, which arises during operation of the household refrigeration appliance, and supplies it to the contact area and/or an area surrounding the contact area by means of the heating fluid. By arranging the frame heating unit in the overlapping area, icing, in particular solid freezing, of the device closure element and/or the sealing element and, alternatively or additionally, undesirable condensation can be prevented.

A “rear side of the inner container element” is to be understood as meaning a side of the inner container element which faces away from the access opening, in particular in the assembled state, and, in particular in an operating state, a side of the inner container element. In particular, the rear side of the inner container element, on which the frame heating unit is arranged, is arranged in the area of the access opening, ie at an end of the usable space facing the user and in a direction away from the user aligned. The domestic refrigeration appliance device has at least one pressing element, which is arranged in particular in the overlapping area and which is supported on at least one part and preferably on precisely one part of the inner container element and presses the frame heating unit against the outer container element in the assembled state.

The pressing element is connected in particular to the inner container element, for example via at least one force fit and/or at least one form fit, for example via a rivet and/or a latching connection and/or a tongue and groove connection and/or a clamp connection and/or a other connections that appear useful to those skilled in the art, and/or advantageously via at least one material connection, for example by a welding process, an adhesive process, a molding process and/or another process that appears useful to those skilled in the art.

“Provided” is intended to mean specifically designed and/or equipped. The fact that an object is provided for a specific function should be understood to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.

It is also proposed that the pressing element elastically presses the frame heating unit against the outer container element in the assembled state. In particular, the pressing element and/or the frame heating unit ensures an elastic deflection of the inner container element, in particular a tab of the inner container element, and/or the outer container element. The deflection of the inner container element, in particular the tab of the inner container element, relative to the outer container element in the assembled state is advantageously at least 0.5 mm, particularly advantageously at least 1 mm, preferably at least 2 mm and particularly preferably at least 3 mm. Advantageously, the deflection of the inner container element, in particular the tab of the inner container element, relative to the outer container element in the assembled state is at most 5 mm, particularly advantageously at most 4.5 mm, preferably at most 4 mm and particularly preferably at most 3.5 mm. In particular, the deflection is, for example, at least 0.1%, advantageously at least 0.25%, particularly advantageously at least 0.5%, preferably at least 1% and particularly preferably at least 2% of a depth of the inner container element, in particular perpendicular to the aisle opening measured. In particular, the pressing element fixes the frame heating unit in the installed state by the deflection, in particular elastic deformation, of the inner container element and/or the outer container element. For example, it would be conceivable for the frame heating unit to be at least slightly elastically deformed in the assembled state, in particular by contact with the pressing element. The frame heating unit is preferably free of elastic deformations in the assembled state. Such a configuration can in particular ensure a high level of reliability with regard to the fixing of the frame heating unit, in particular with regard to the pressing of the frame heating unit onto the outer container element. In particular, any manufacturing tolerances can be compensated for by such a configuration and the frame heating unit can be reliably fixed.

In addition, it is proposed that the pressing element presses the frame heating unit in the assembled state against a first surface of the outer container element and against at least one second surface of the outer container element aligned at an angle to the first surface. The first surface is at an angle to the second surface of, for example, at least 30°, advantageously at least 45°, particularly advantageously at least 60°, preferably at least 75° and particularly preferably at least 85°. In particular, the first surface has an at least substantially right angle to the second surface. However, it would also be conceivable for the first surface to have an obtuse angle with respect to the second surface. In particular, in the mounted state at least one, advantageously continuous, line contact is produced between the frame heating unit and the first surface of the outer container element by means of the pressing element. At least one, in particular continuous, line contact between the frame heating unit and the second surface of the outer container element is advantageously produced in the assembled state by means of the pressing element. In the mounted state, the frame heating unit is preferably contacted over at least a large part of a main extension of the frame heating unit via at least three line contacts, in particular through the first surface of the outer container element and/or through the second surface of the outer container element and additionally through the pressing element. As a result, particularly advantageous properties can be achieved with regard to heating by means of the frame heating unit. Furthermore, as a result, icing of the device closure element can be reliably avoided. In particular, the access opening can be currently open reliably. In particular, in the mounted state by means of the pressure element there is at least one, advantageously continuous, line contact between the frame heating unit and at least one of the surfaces of the outer container element, which extends at least over a length portion of, for example, 30%, advantageously at least 40%, particularly advantageously at least 50%, preferably at least 60% and more preferably at least 75% of the tab. In particular, by contacting the frame heating unit with the outer container element, a particularly advantageous heat transfer from the frame heating unit to the outer container element can be ensured.

Furthermore, it is proposed that the pressing element has at least one auxiliary assembly element, which conveys the frame heating unit into an assembly end position during assembly. In particular, the auxiliary assembly element is an inclined surface of the pressing element. In particular, the auxiliary assembly element, in particular the inclined surface, has an angle of in particular at least 5°, advantageously at least 15°, preferably at least 20° and particularly preferably at least 30° in the assembled state to a main extension plane of the frame heater. A “main extension plane” of the frame heating unit is to be understood as a plane which is parallel to a largest side surface of an imaginary cuboid which just completely encloses the frame heating unit and in particular runs through the center point of the cuboid. The auxiliary assembly element is preferably connected in one piece to the pressing element. It would also be conceivable for the auxiliary assembly element to be designed as an additional component which, for example, is installed exclusively during assembly or permanently in the assembled state. It would be conceivable that the frame heating unit is initially in a pre-assembled state, in which the frame heating unit is pre-fixed by means of, in particular short-term, attachment to the inner container element and/or the outer container element, for example by gluing or snapping. Such a configuration can in particular simplify assembly. Furthermore, it can be ensured that the frame heating unit is reliably in the correct assembly end position in the assembled state. In this way, assembly in particular can be simplified on the one hand and made more reliable on the other. Alternatively or additionally, it would be conceivable for the auxiliary assembly element to be designed as a recess and/or an attachment of the tab. For example, the auxiliary element may be formed as a bulge, which is intended to promote the frame heating unit during assembly in a final assembly position and preferably to keep it in a final assembly position.

Furthermore, it is proposed that the pressing element is arranged in a region of an external and in particular completely circumferential tab of the inner container element. As a result, a particularly reliable construction can be provided. In particular, manufacturing tolerances can be compensated for, in particular when the pressing element is arranged in an area subject to severe tolerances, such as in particular the area of the outer flap of the inner container. Furthermore, the production can be carried out in a particularly cost-efficient manner by means of such a configuration.

In addition, it is proposed that the pressing element is connected in one piece to the inner container element. In particular, the pressing element is cohesively connected to the inner container element, for example by a welding process, an adhesive process, an injection molding process and/or another process that appears sensible to a person skilled in the art. For example, it would be conceivable for the pressing element and the inner container element to be parts that can be produced separately and are connected in one piece by means of a material connection. Such a design makes it possible, in particular, to achieve improved properties with regard to cost-efficient assembly. Furthermore, the complexity of the assembly can be reduced, since the one-piece connection of the pressing element to the inner container element can reduce the number of different parts.

Furthermore, it is proposed that the pressing element is part of the inner container element. In particular, the pressing element and the inner container element are designed as a common deep-drawn part. At least the auxiliary assembly element, the pressing element and the inner container element are particularly preferably designed as a common deep-drawn part. In this way, a particularly simple production can be ensured in particular. In particular, this means that additional components can be dispensed with, which further simplifies production and in particular further reduces the production costs and/or the assembly costs. For example, it would be conceivable for the pressing element to be in the form of a formation which is oriented away from the frame heating unit. If the pressing element is designed as a formation, in particular a camber, of the tab directed in the direction of the frame heating unit, particularly stable pressing, in particular particularly stable fixing, of the frame heating unit in the installed state can be achieved. In particular, the pressing element is designed as a bulge of the bracket, with the bulge being aligned in the direction of the frame unit. The shape, in particular the curvature of the tab, preferably has a particularly round and advantageously continuous geometry. Alternatively or additionally, it would be conceivable for the formation of the tab to have a cascaded geometry. This means that it would be conceivable for the pressing element to be designed as a formation of the tab in the form of at least two and preferably at least three steps. Other geometries of the formation that appear reasonable to a person skilled in the art would also be conceivable. In particular, the pressing element designed as a molding has a height, measured in relation to the tab of the inner container element, of at least 0.5 mm, advantageously at least 1 mm, particularly advantageously at least

1.5 mm, preferably at least 2 mm and particularly preferably at least

2.5mm up. In particular, the pressing element designed as a molding has a height measured in relation to the tab of the inner container element of at most 5 mm, advantageously at most 4.5 mm, particularly advantageously at most 4 mm and particularly preferably at most 3.5 mm.

It is also proposed that the shape in the assembled state causes spring clamping of the frame heating unit, in particular between the inner container element (pressing element) and the outer container element. In particular in the mounted state, the frame heater, which in particular contacts the first surface and the second surface of the outer container element, presses against the molding. As a result, the formation, that is to say the pressing element, is elastically, in particular resiliently, deflected in the assembled state. It would also be conceivable for the outer container element to deflect elastically, in particular resiliently, in particular due to the contact with the frame heating unit. In particular, the pressing element deflects the tab of the inner container element in the assembled state in a direction opposite to the deflection of the outer container element. Preferably, the frame heating unit is in the assembled state is arranged between the inner container element and the outer container element, by the elastic deflection of the inner container element, and preferably of the outer container element, is resiliently clamped between the tab of the inner container element and the outer container element. As a result, the frame heating unit can be stored particularly securely. In particular, since the spring clamp allows a high degree of manufacturing tolerances, manufacturing can be designed to be more cost-efficient as a result.

Furthermore, it is proposed that the household refrigeration appliance device has at least one further pressing element, which is offset relative to the pressing element when viewed in the circumferential direction of the inner container element and is arranged in particular in the overlapping area, which is supported at least on the part of the inner container element and which, in the assembled state, presses the frame heating unit in particular elastically presses the outer container element. Viewed in the circumferential direction, the inner container element can in particular have at least one, in particular rectilinear, edge region and in particular at least one curved region. It would be conceivable for the domestic refrigeration appliance device to have, for example, at least two, advantageously at least three, particularly advantageously at least four and preferably at least five further pressing elements. In particular, the at least one further pressing element is designed at least substantially and preferably completely identically to the pressing element.

In particular, the inner container element has at least one vertical edge area, advantageously at least two and preferably exactly two vertical edge areas, in the circumferential direction. In addition, the inner container element has at least one horizontal edge area in the circumferential direction, advantageously at least two and preferably exactly two horizontal edge areas. In particular, the horizontal edge areas are connected to the vertical edge area(s) via a curved area. For example, it would be conceivable for the further pressing element to be arranged in a different vertical edge area of the inner container element than the pressing element. If the further pressing element is arranged in the same vertical edge area of the inner container element as the pressing element, the frame heating unit can be fixed particularly well in the vertical edge area. Furthermore, it can be achieved that the frame heating unit in the assembled state reliably remains in the assembly end position. Furthermore, it can be achieved that the frame heating unit is pressed against the outer container element with an advantageously high contact pressure. In particular, this can enable a particularly reliable and/or efficient heating of the contact area. Furthermore, it is conceivable that a plurality of further pressing elements are arranged in the same vertical edge region of the inner container element as the pressing element.

Furthermore, it is proposed that the pressing element is arranged in a vertical edge area of the inner container element and the further pressing element is arranged in a horizontal edge area of the inner container element. It would also be conceivable for several further pressing elements to be arranged in the vertical edge area and in the horizontal edge area. It is also conceivable that at least one pressing element and/or at least one further pressing element is arranged in each vertical edge area and in particular in each horizontal edge area of the inner container element. As a result, the frame heating unit can be fixed in a particularly stable manner, particularly in the vertical edge area and in the horizontal edge area. As a result, the frame heating unit can make particularly good contact with the outer container element in the vertical edge area and in the horizontal edge area. Furthermore, a particularly advantageous heating in the vertical edge area and in the horizontal edge area can be made possible by the frame heating. With a household refrigeration appliance with at least one household refrigeration appliance device, particularly advantageous properties with regard to a construction and, in particular, improved properties with regard to reliable heating of a contact area of a household appliance door to an appliance body can be achieved.

The invention is also based on a method for assembling a household refrigeration appliance device with at least one inner container element, with at least one outer container element which, in particular in one method step, is arranged so that it overlaps with the inner container element in at least one overlapping area, and with at least one frame heating unit, which is arranged in the overlapping area is arranged at least partially between this and the outer container element on a rear side of the inner container element. It is proposed that the frame heating unit is pressed against the outer container element by means of at least one pressing element, which is supported on at least part of the inner container element, in particular in the method step.

Furthermore, it is proposed that, particularly in the method step in which the outer container element is arranged so that it overlaps with the inner container element in at least one overlapping area, the inner container element and the outer container element are elastically deformed by the pressing element, thereby generating a spring force by means of which the frame heating unit the outer container element is pressed. In particular, in the method step, the outer container element is joined to the inner container element, specifically by pushing the outer container element onto the inner container element, specifically in particular from the outside. When the outer container element is joined to the inner container element, in particular when it is pushed on, a tab of the inner container element is advantageously resiliently deflected by the pressing element in a direction towards a user and at least one component of the outer container element is advantageously resiliently deflected in a direction away from the user. The frame heater is advantageously pre-fixed to the inner container element in a pre-assembly step, which takes place before the assembly step. The pre-fixing takes place by placing, in particular slipping, the frame heater onto the inner container element, in particular from above, while the inner container element is aligned with its access opening downwards. The frame heater is particularly preferably pre-fixed in a provisional pre-assembly position by means of hot-melt adhesive and/or hot-melt adhesive and/or adhesive strips or the like.

The household refrigeration appliance and the method for operating the household refrigeration appliance should not be limited to the application and embodiment described above. In particular, the household refrigeration appliance device and the method for operating the household refrigeration appliance device can have a number of individual elements, components, units and method steps that differs from a number specified here in order to fulfill a functionality described herein.

Further advantages result from the following description of the figures. Several exemplary embodiments of the invention are shown in the figures. The characters, the character The writing and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

Show it:

1 a household refrigeration appliance designed as a household freezer with a household refrigeration appliance device in a simplified perspective representation,

2 shows part of the domestic refrigeration appliance device with a frame heating unit in a perspective exploded view,

3 shows part of the household refrigeration appliance device with an inner container element in a perspective view,

4 shows the inner container element with a pressing element and with a further pressing element in a perspective view and the pressing element in a detailed section,

5 shows part of the domestic refrigeration appliance device with the inner container element, with the frame heating unit and with an outer container element in a sectional view,

6-7 a simplified sectional view of the inner container element with the pressing element in an unassembled state and in an assembled state,

8 shows a flowchart of a method for assembling the domestic refrigeration appliance device,

9 shows part of a household refrigeration appliance device of a further exemplary embodiment with a pressing element of an inner container element of the household refrigerating appliance device in a perspective view and the pressing element in a detailed section,

10 shows a household refrigeration appliance with a household refrigeration appliance device of a further exemplary embodiment,

11 shows an inner container element of the domestic refrigeration appliance device from FIG. 11 with a pressing element and further pressing elements in a simplified side view, and 12 shows a simplified sectional illustration of a part of a domestic refrigeration appliance device of a further exemplary embodiment, with an auxiliary assembly element.

Of the objects that are present several times, only one is provided with a reference number in each of the figures.

FIG. 1 shows a domestic refrigeration appliance 40a according to a first exemplary embodiment in a partially simplified representation. The domestic refrigerator 40a is designed as a domestic freezer. In the present case, the household refrigeration appliance 40a is designed as a freezer. The domestic refrigeration appliance 40a has an internal temperature of up to -18°C.

Furthermore, the household refrigeration appliance 40a has a household refrigeration appliance device 10a. The household refrigeration appliance device 10a includes a device closure element 42a. In the present case, the device closure element 42a is designed as a device door. The device closure element 42a has a sealing element 44a. The sealing element 44a is designed as a door seal.

The domestic refrigeration appliance device 10a also includes a device body 46a. The device body 46a includes an inner container element 12a (cf. also FIGS. 2 to 4). The inner container element 12a consists of a thermoelastic plastic. In the example shown, the inner container element has a depth of approximately 400 mm. The inner container element 12a delimits a usable space 48a. On a side facing the device closure element 42a in a mounted state, the usable space 48a has an access opening 50a. The access opening 50a is provided for removing and/or introducing refrigerated goods from and/or into the utility space 48a.

The household refrigeration appliance device 10a also includes an outer container element 14a (cf. also FIGS. 5 to 7). The outer container element 14a is designed as a bent metal sheet metal part. The outer container element 14a is arranged so that it overlaps with the inner container element 12a in an overlap region 16a. A frame heating unit 18a is also arranged in the overlapping region 16a. The frame heating unit 18a is arranged on a rear side 20a of the inner container element 12a, namely partially between the inner container element 12a and the outer container element 14a, in the overlapping region 16a. The back 20a of the inner container element merits 12a, on which the frame heating unit 18a is arranged in the overlapping area 16a, is arranged in the area of the access opening 50a, ie at an end of the usable space 48a facing a user, and is aligned in a direction away from the user.

The frame heating unit 18a is intended to form a contact area 52a, on which the device closure element 42a, and in particular the sealing element 44a of the device closure element 42a, rests in a closed state. The frame heating unit 18a prevents the device closure element 42a, in particular the sealing element 44a of the device closure element 42a, from freezing to the contact area 52a.

Furthermore, the household refrigeration appliance device 10a has a pressing element 22a. The pressing element 22a is arranged in a region of an external tab 34a of the inner container element 12a. In the present exemplary embodiment, the tab 34a is arranged completely surrounding the inner container element 12a. The pressing element 22a is arranged in the overlapping area 16a. The inner container element 12a has a material thickness of approximately 2 mm in the area of the tab 34a.

In the example shown, the pressing element 22a is connected in one piece to the inner container element 12a, specifically the pressing element 22a is part of the inner container element 12a. In the present exemplary embodiment, the pressing element 22a and the inner container element 12a are designed as a common deep-drawn part, although other manufacturing methods that appear sensible to a person skilled in the art would also be conceivable. Since the pressing element 22a and the inner container element 12a are designed as a common deep-drawn part, they are produced in a common production step.

FIG. 5 shows part of the household refrigerating appliance device 10a in a sectional representation in an assembled state. In the assembled state, the pressing element 22a is supported on a part 26a of the inner container element 12a. In the present exemplary embodiment, the part 26a, like the pressing element 22a, is a component of the inner container element 12a. For example, part 26a is arranged in the area of tab 34a. In the assembled state, the pressing element 22a, which is supported on the part 26a, presses the frame heating unit 18a against the outer container element 14a. The pressing element 22a is designed as a formation of the tab 34a directed in the direction of the frame heating unit 18a, in particular when viewed in the assembled state. In the present exemplary embodiment, the shaping is a cambering of the inner container element 12a, specifically the tab 34a in particular. The pressing element 22a is a bulging deformation of the tab 34a, which is aligned in the direction of the frame heating unit 18a. The section shown in FIG. 5 runs transversely through the area of the arching deformation of the tab 34a.

The pressing element 22a elastically presses the frame heating unit 18a in the assembled state against the outer container element 14a. In the present exemplary embodiment, the pressing element 22a presses the frame heating unit 18a in the assembled state against a first surface 28a of the outer container element 14a and against at least one second surface 30a of the outer container element 14a oriented at an angle to the first surface.

Furthermore, the pressing element 22a has an assembly aid element 32a. During assembly, the auxiliary assembly element 32a conveys the frame heating unit 18a into an assembly end position. Figure 6 shows a simplified part of the inner container element 12a with the pressing element 22a in a sectional view in a non-assembled state. FIG. 7 shows a part of the household refrigerating appliance device 10a in simplified form in a sectional representation in the assembled state. The auxiliary assembly element 32a, which in the present exemplary embodiment is designed as a surface of the pressing element 22a, is resiliently deflected in the assembled state compared to the non-assembled state and, in particular, is set at an angle. Due to the resilient deflection of the auxiliary assembly element 32a in the assembled state, the auxiliary assembly element 32a in the assembled state is oriented at an angle compared to the auxiliary assembly element 32a in the unassembled state. Due to the angular orientation of the auxiliary assembly element 32a, the auxiliary assembly element 32a conveys the frame heating unit 18a into an assembly end position during assembly. The assembly end position is that position in which the pressing element 22a presses the frame heating unit 18a against the first surface 28a and the second surface 30a of the outer container element 14a. In the assembly end position, specifically in the assembled state, the frame heating unit 18a is sufficiently fixed for, in particular, permanent operation of the household refrigeration appliance 40a. In the assembled state, the inner container element 12a and the outer container element 14a are resiliently deflected. A deflection 58a occurs because the pressing element 22a and the frame heating unit 18a displace the tab 34a of the inner container element 12a and the outer container element 14a. Thus, in the installed state, the pressing element 22a causes the frame heating unit 18a to be spring clamped between the inner container element 12a and the outer container element 14a.

The household refrigeration appliance device also has a further pressing element 24a. The pressing element 24a is configured identically to the pressing element 22a. The pressing element 22a is arranged in a vertical edge region 36a of the inner container element 12a, in particular in the assembled state. The further pressing element 24a is arranged in a horizontal edge area 38a of the inner container element 12a.

FIG. 8 shows a flow chart of a method 100a for assembling the household refrigeration appliance device 10a. In the example shown, the method 100a has a first method step 102a and a second method step 104a.

In method step 102a, a domestic refrigeration appliance device 10a is provided with an inner container element 12a, with an outer container element 14a and with a frame heating unit 18a. In method step 102a, the frame heating unit 18a is prefixed to the inner container element 12a. For this purpose, the frame heating unit 18a is placed on a tab 34a of the inner container element 12a and fixed in edge regions with spots of hot-melt adhesive (cf. also FIG. 2).

In method step 104a, the outer container element 14a is arranged so that it overlaps with the inner container element 12a in an overlap region 16a. For this purpose, the outer container element 14a is pushed laterally onto the inner container element 12a. As a result, the frame heating unit 18a is pressed against the outer container element 14a in method step 104a by means of a pressing element 22a of the inner container element 12a, which is supported on at least one part 26a of the inner container element 12a. Specifically, in method step 104a, the inner container element 12a and the outer container element 14a are elastically deformed by the pressing element 22a, as a result of which a spring force is generated, by means of which the frame heating unit 18a is attached to the Outer container element 14a is pressed. When the outer container element 14a is joined to the inner container element 12a, the tab 34a and the outer container element 14a are displaced in different directions by the pressing element 22a and by the frame heating unit 18a, which causes the resilient deflection.

Three further exemplary embodiments of the invention are shown in FIGS. The following descriptions are essentially limited to the differences between the exemplary embodiments, whereby reference can be made to the description of the exemplary embodiment in FIGS. 1 to 8 with regard to components, features and functions that remain the same. To distinguish between the exemplary embodiments, the letter a in the reference numbers of the exemplary embodiment in FIGS. 1 to 8 has been replaced by the letters b, c and d in the reference numbers of the exemplary embodiments in FIGS. With regard to components with the same designation, in particular with regard to components with the same reference symbols, reference can in principle also be made to the drawings and/or the description of the exemplary embodiment in FIGS.

FIG. 9 shows a further exemplary embodiment of the invention. A part of an inner container element 12b of a household refrigerating appliance device 10b according to a further exemplary embodiment is shown both in a perspective overall view and in an enlarged view of a section of the inner container element 12b. The domestic refrigeration appliance device 10b has a pressing element 22b. The pressing element 22b of the household refrigeration appliance device 10b of this exemplary embodiment has a geometry that differs from the pressing element 22a of the previous exemplary embodiment. The inner container element 12b has a tab 34b. The pressing element 22b of this exemplary embodiment is designed as a stepped formation of the tab 34b. The pressing element 22b also has a cascaded geometry. Specifically, the pressing element 22b has six steps 54b, which are formed at three different heights on the tab 34b, with other suitable numbers of steps being conceivable.

The pressing element 22b is arranged in a vertical edge area 36b of the inner container element 12b. Furthermore, the domestic refrigeration appliance device 10b of this exemplary embodiment has a further pressing element 24b. The further pressing element 24b is attached in a horizontal edge area 38b of the inner container element 12b. arranges. The other pressing element 24b is identical to the pressing element 22b.

Figures 10 and 11 show part of a household refrigeration appliance 40c according to a further embodiment in a partially simplified perspective view. The household refrigeration appliance 40c of this exemplary embodiment is designed as a fridge-freezer combination. Furthermore, the household refrigeration appliance 40c has a household refrigeration appliance device 10c. The domestic refrigeration appliance device 10c includes an inner container element 12c. The household refrigeration appliance device 10c also includes an outer container element 14c.

The inner container element 12c of this exemplary embodiment has a pressing element 22c. The pressing element 22c is intended to press a frame heater (not shown) of the household refrigeration appliance 40c against the outer container element 14c in a mounted state. The household refrigeration appliance 40c also has three further pressing elements 24c. The three further pressing elements 24c are arranged offset to the pressing element 22c, viewed in the circumferential direction of the inner container element 12c. The three further pressing elements 24c, like the pressing element 22c, are supported on at least one part (not shown) of the inner container element 12c and press the frame heating unit elastically against the outer container element 14c in the assembled state. The three further pressing elements 24c are arranged in the same vertical edge area 36c of the inner container element 12c as the pressing element 22c.

Furthermore, the domestic refrigeration appliance device 10c includes three support elements 56c. The three support elements 56c are also arranged in the same vertical edge area 36c of the inner container element 12c as the pressing element 22c and the three further pressing elements 24c. The support elements 56c are each arranged between two of the further pressing elements 24c and/or between the pressing element 22c and one of the further pressing elements 24c. The pressing elements 22c are designed as bulges and are aligned in the direction of the frame heating unit (not shown). The support elements 56c are designed as bulges, which are aligned in a direction opposite to the pressing elements 22c. The support elements 56c are intended to be supported at least on the outer container element 14c in the assembled state. As a result, the support elements 56c ensure stability in the assembled state. In particular, when several pressing elements 22c and/or several further pressing pressing elements 24c are arranged adjacent to the inner container element 12c, the support elements 56c provide additional stability in the assembled state by supporting them on the back.

FIG. 12 shows part of a household refrigerating appliance device 10d of a further exemplary embodiment of the invention in a simplified sectional view. The domestic refrigeration appliance device 10d has an inner container element 12d. Furthermore, the domestic refrigeration appliance device 10d has an outer container element 14d. In an overlap region 16d, in which the outer container element 14d is arranged so that it overlaps with the inner container element 12d, a frame heating unit 18d is arranged on a rear side 20d of the inner container element 12d.

The domestic refrigeration appliance device 10d also has a pressing element 22d, which is designed analogously to the pressing element 22a of the first exemplary embodiment in terms of its function. Furthermore, the pressing element 22d has an assembly aid element 32d, which conveys the frame heating unit 18d into an assembly end position during assembly. The assembly aid element 32d is designed as a projection, specifically as a bulge in a region of an external tab 34d of the inner container element 12d. The assembly aid element 32d conveys and holds the frame heating unit 18d into an assembly end position in which the pressing element 22d presses the frame heating unit 18d against a first surface 28d of the outer container element 14d.

Reference sign

10 household refrigerating appliance device

12 inner container element

14 outer container element

16 Overlap area

18 frame heater unit

20 back

22 pressing element

24 Additional pressing element

26 part

28 First surface

30 Second surface

32 Auxiliary assembly element

34 tab

36 Vertical edge area

38 Horizontal edge area

40 household refrigeration appliance

42 Device locking element

44 sealing element

46 device body

48 usable space

50 access port

52 contact area

54 level

56 support element

58 deflection

100 procedures

102 process step

104 process step

Claims

23

Claims Household refrigeration appliance device (10a; 10b; 10c; 10d), in particular household freezer appliance, with at least one inner container element (12a; 12b; 12c; 12d), with at least one outer container element (14a; 14c; 14d) which is connected to the inner container element (12a; 12b; 12c; 12d) is arranged so that it overlaps in at least one overlapping area (16a; 16d), and with at least one frame heating unit (18a; 18d) which is located in the overlapping area (16a; 16d) on a rear side (20a; 20b; 20c; 20d) of the Inner container element (12a; 12b; 12c; 12d) is arranged at least partially between this and the outer container element (14a; 14c; 14d), characterized by at least one pressing element (22a; 22b; 22c; 22d), which is located on at least one part (26a ; 26d) of the inner container element (12a; 12b; 12c; 12d) and presses the frame heating unit (18a; 18d) against the outer container element (14a; 14c; 14d) in an assembled state. Household refrigerating appliance device (10a; 10b; 10c; 10d) according to Claim 1, characterized in that the pressing element (22a; 22b; 22c; 22d) elastically clamps the frame heating unit (18a; 18d) to the outer container element (14a; 14c; 14d ) presses. Domestic refrigerating appliance device (10a; 10b; 10c) according to Claim 1 or 2, characterized in that the pressing element (22a; 22b; 22c) presses the frame heating unit (18a) in the assembled state to a first surface (28a) of the outer container element (14a; 14c) and presses against at least one second surface (30a) of the outer container element (14a; 14c) which is oriented at an angle to the first surface (28a). 4. Domestic refrigeration appliance device (10a; 10b; 10c; 10d) according to one of the preceding claims, characterized in that the pressing element (22a; 22b; 22c; 22d) has at least one assembly aid element (32a; 32b; 32d) which the frame heating unit (18a ; 18d) is conveyed into an assembly end position during assembly.

5. Domestic refrigeration appliance device (10a; 10b; 10c; 10d) according to any one of the preceding claims, characterized in that the pressing element (22a; 22b; 22c; 22d) in a region of an outer flap (34a; 34b; 34c; 34d) of the inner container element (12a; 12b; 12c; 12d).

6. Household refrigeration appliance device (10a; 10b; 10c; 10d) according to one of the preceding claims, characterized in that the pressing element (22a; 22b; 22c; 22d) is integrally connected to the inner container element (12a; 12b; 12c; 12d).

7. Household refrigerating appliance device (10a; 10b; 10c; 10d) according to claim 6, characterized in that the pressing element (22a; 22b; 22c; 22d) is part of the inner container element (12a; 12b; 12c; 12d).

8. Household refrigeration appliance device (10a; 10b; 10c; 10d) at least according to claims 5 and 7, characterized in that the pressing element (22a; 22b; 22c; 22d) as a formation of the tab directed in the direction of the frame heating unit (18a; 18d). (34a; 34b; 34c; 34d) is formed.

9. Household refrigerating appliance device (10a; 10b; 10c; 10d) according to claim 8, characterized in that a spring clamping of the frame heating unit (18a; 18d) is caused by the shape in the assembled state. Household refrigerating appliance device (10a; 10b; 10c) according to one of the preceding claims, characterized by at least one further pressing element (24a; 24b; 24c) which, viewed in the circumferential direction of the inner container element (12a; 12b; 12c), is offset to the pressing element (22a; 22b; 22c ) is arranged, which is at least on the part (26a) of the inner container element (12a;

12b; 12c) and which, in the mounted state, presses the frame heating unit (18a) against the outer container element (14a; 14b; 14c). Household refrigerating appliance device (10c) according to claim 10, characterized in that the further pressing element (24c) is arranged in the same vertical edge area (36c) of the inner container element (12c) as the pressing element (22c). Domestic refrigeration appliance device (10a; 10b) according to claim 10, characterized in that the pressing element (22a; 22b) in a vertical edge region (36a; 36b) of the inner container element (12a; 12b) and the further pressing element (24a; 24b) in one horizontal edge region (38a; 38b) of the inner container element (12a; 12b) is arranged. Domestic refrigeration appliance (40a; 40c), in particular domestic freezer, with at least one domestic refrigeration appliance device (10a; 10b; 10c) according to one of the preceding claims.

26 Method (100a) for assembling a household refrigerating appliance device (10a; 10b; 10c; 10d), in particular according to one of Claims 1 to 12, with at least one inner container element (12a; 12b; 12c; 12d), with at least one outer container element (14a; 14c ; 14d) which is arranged to overlap with the inner container element (12a; 12b; 12c; 12d) in at least one overlapping area (16a; 16d), and with at least one frame heating unit (18a; 18d) which in the overlapping area (16a; 16d) on a rear side (20a; 20b; 20c; 20d) of the inner container element (12a; 12b; 12c; 12d) at least partially between this and the outer container element (14a; 14c; 14d), characterized in that the frame heating unit (18a; 18d ) by means of at least one pressing element (22a; 22b; 22c; 22d), which is supported on at least one part (26a; 26d) of the inner container element (12a; 12b; 12c; 12d), onto the outer container element (14a; 14c; 14d). will. Method (100a) according to Claim 14, characterized in that the inner container element (12a; 12b; 12c;

12d) and the outer container element (14a; 14c; 14d) are elastically deformed, whereby a spring force is generated, by means of which the frame heating unit (18a; 18d) is pressed against the outer container element (14a; 14c; 14d).