DE102021202364A1 - Backing part for a household refrigeration appliance component, arrangement with a household refrigeration appliance component and a backing part, and assembly method - Google Patents

Abstract

One aspect of the invention relates to a backing part (7) for a household refrigeration appliance component (1), having a base wall (18) and side walls (19, 20, 21, 22) which end at the base wall (18), so that the base wall (18 ) and the side walls (19 to 22), a trough with a volumetric space (23) delimited by the walls (18 to 22) is formed, and with at least one retaining element (28) which is used for coupling to a counter-retaining element (30) of the household refrigeration appliance component ( 1) is provided when the backing part (7) is mounted on the household refrigeration appliance component (1) in a holding manner, characterized in that the holding element (28) is arranged in the volume space (23). Further aspects also relate to an arrangement (17) and a method.

Description

One aspect of the invention relates to a backing part for a household refrigeration appliance component. The backing has a base wall. Furthermore, the backing part has side walls which end at the base wall, so that a trough with a volume space delimited by the walls is formed by the base wall and the side walls. Furthermore, the backing part has at least one retaining element, to which a counter-retaining element of the household refrigeration appliance component snaps when the backing part is mounted in a retaining manner on the household refrigeration appliance component. A further aspect of the invention relates to an arrangement with such a backing part and a household refrigeration appliance component. A further aspect of the invention relates to a method for installing such a backing part on a household refrigeration appliance component.

It is known that household refrigeration appliance components are thermally insulated. For example, a door of a household refrigeration appliance has a front wall and a rear wall, between which an intermediate space is formed. Thermally insulating material is introduced into this intermediate space. Another household refrigeration appliance component can be a housing of a household refrigeration appliance, for example. This household refrigeration appliance component also has an outer housing and an inner container arranged therein. The inner container delimits an accommodation space for food. This receiving space can be a refrigerated compartment or a freezer compartment, for example. An intermediate space is also formed between the outer housing and the inner container and is filled with a thermally insulating material.

In the case of household refrigeration appliance components, it is also known that additional components are installed on them. For example, this can be an electronic module. However, other additional components can also be provided.

It is therefore necessary for the household refrigeration appliance components to provide appropriate free space in order to then be able to install such additional components. Since such additional components are usually installed in the space after the thermally insulating material has been introduced, a measure must be taken to ensure that the required installation space for this additional part or this additional component is available even after the thermally insulating material has been introduced. For this purpose, backing parts are usually used, which are arranged in the intermediate space mentioned. If this backing part is installed, the thermally insulating material is usually subsequently introduced into the intermediate space. This backing part thus makes it possible for thermally insulating material, which in particular can be thermally insulating foam, not to be able to emerge undesirably from provided recesses and the like. In addition, it is avoided that such foam would fill up an installation space that is required for such an additional part.

A backing part known from the prior art is, for example, in 2 shown in perspective. This backing part 100 has a base wall 101 . Side walls 102, 103, 104 and 105 end on this base wall 101. A configuration of the backing part 100 with the walls provided in this regard is trough-like. The side walls 102 to 105 end at a specific angle to the base wall 101. In 2 already shows the assembled state of the backing part 1 on a wall 106 of a household refrigeration appliance component. In this assembled condition is an in 2 not recognizable recess in this wall 106 covered by the backing part 100. To fasten the backing part 100 to this wall 106, lugs 107 are provided, which are formed on the wall 106 in one piece. These tabs 107 are snapped onto an outside 108 of a side wall 103 . For this purpose, snap elements 109 and 110 are formed on this outside 108 . These are formed in one piece with the side wall 103 .

In 3 is a perspective sectional view of the embodiment according to 2 shown. Therefore, with this concept, attachments are provided outside of the backing part 100 with these tabs 107 .

In the sectional view according to 3 it can be seen that a minimal gap 112 is formed between an edge flange 111 of the backing part 100 and the side wall 103 . The plate-like tab 107 must be threaded through this small gap during assembly. In a conventional configuration, this gap 112 has a width b of approximately 1 mm. Therefore, for this reason alone, the production is very complex and error-prone. Bending of the tab 107 can then occur during the relevant threading, and such threading can then be prevented up to the snapped end position. In addition, due to manufacturing tolerances, slots 112 cannot always be manufactured with the same width b. This can also cause problems when threading the tab 107.

A further disadvantage can be seen in the fact that, in terms of production technology, these tabs 107 are not exactly at 90° in relation to the remaining surface of the wall 106 can be bent. Therefore, these tabs 107 are always inclined by a few degrees towards the recess 113 formed in the wall 106. This also makes it more difficult to thread the tab 107 into the gap 112.

In addition, the structural design of the holding elements or the snap-in elements 109 and 110 is provided in such a way that this orientation inclined toward the outside 108 of the side wall 103 is provided for secure latching. Theoretically, a certain resilience of these snap elements 109 and 110 should be achieved when the tab 107 is inserted. When manufacturing the backing part, these snap elements 109 and 110 are pulled inwards by internal stresses, in particular temperature stresses during cooling after injection molding, so that they should narrow or reduce the width of the gap 112 . This effect is hoped for, so that when the tab 107 is threaded in, the snap elements 109 and 110 would be pushed aside to a certain extent and in the end position these deflected snap elements 109 and 110 would then snap under the tab 107 again. However, in actual reality and production possibilities, this is not large enough to close this gap 112 far enough and to be able to reliably achieve this snapping concept explained above. In this context, disadvantages can then occur when snapping, namely insufficient snapping. In this context, it is desired that the width of the gap 112 in the region of an upper end of the snap-in element 109, 110 is structurally approximately 0.3 mm. However, this is very difficult to implement in the injection molding tool, since it requires a relatively thin wall thickness of the tool in this area. The thickness of the tab 107 is typically 0.5 mm. Therefore, with this desired construction, there is only a maximum overlap of 0.2 mm between the tab 107 and a snap element 109, 110. In addition, radii at the respective edges due to the production process further reduce the holding force. Therefore, in reality, there is often no positive snapping between the snap elements 109, 110 and the tab 107. This requires that the backing part 100 also has to be attached to the wall 106 with a separate adhesive tape. There is therefore still a certain possibility that thermally insulating foam can escape in the area of this recess 113 at the interface with the backing part 100 . Furthermore, the gap 112 that is open outside of the backing part 100 must also be sealed with an adhesive tape.

As can also be seen, these snap elements 109 and 110 are arranged on this edge flange 111 and are therefore also positioned at a distance from this outer side 108 of the side wall 103 .

It is the object of the present invention to create a backing part which is improved with regard to the assembly options and the sealing function. It is also an object to create an arrangement that is designed to be improved in this respect. In addition, it is the object of the present invention to create an assembly method in which the assembly of a backing part on a household refrigeration appliance component is improved.

These objects are solved by a deposit, an arrangement and a method according to the independent claims.

One aspect of the invention relates to a backing part for a household refrigeration appliance component. The backing has a base wall. The backing part also has side walls that differ from the base wall. The side walls end at the base wall. In particular, these side walls terminate with edges at an angle to edges of the base wall. A trough is formed by the base wall and the side walls. A volumetric space of the backing part is formed or delimited by this base wall and the side walls. In particular, this volume space is completely delimited by the side walls and the base wall, which means that this volume space has no hole or opening in the area of these walls.

In particular, both the side walls and the base wall are therefore designed without openings or without holes.

The backing part also has at least one holding element. This holding element is intended for coupling, in particular snapping, to a counter-holding element of the household refrigeration appliance component. This is the case when the backing part is mounted in a holding manner on the household refrigeration appliance component. This holding element is arranged in the volume space. Such a configuration provides a particularly advantageous backing part. This configuration means that it is no longer necessary for the backing part to have an opening of any kind on a side wall or a base wall in order to guide the counter-retaining element through in this regard. This makes it possible for the volume space in the area of the side walls and the base wall not to have any interface to the outside of the backing part. The volume space is thus open only on the side opposite the base wall educated. Otherwise it is completely delimited and closed by the side walls and the base wall. The arrangement and positioning of the holding element within this volumetric space also enables a simpler assembly concept. The counter-holding element no longer has to go through a very thin slit or gap, as is the case 2 and 3 was explained to be threaded through. The counter-retaining element can be introduced into the volume space via the open side of the volume space opposite the base wall. This is a significant simplification during assembly. In addition, the mechanically coupling connection between the holding element and the counter-holding element is thus arranged completely within the volume space. This mechanically coupling connection is thus arranged in a quasi-completely encapsulated manner in relation to the thermally insulating material when this is in direct contact outside of the backing part and thus on the outside of the base wall and on the outsides of the side walls. In this configuration there is therefore no interface whatsoever in the area of the base wall and the side walls through which such a thermally insulating foam could penetrate from outside the backing part into the volume space. In this regard, both the side walls and the base wall are designed without holes or, in particular, without slots. As a result, the counter-retaining element is also arranged without contact with the thermally insulating material when the backing part is arranged on the household refrigeration appliance component.

The laying of this mechanically coupling connection between the holding element and the counter-holding element also makes it possible for this mechanical coupling to still be accessible after the introduction of the thermally insulating material and, if necessary, to be reworked. This also means, in particular, that even after thermally insulating foam has been introduced into an intermediate space of the household refrigeration appliance component, accessibility to the holding element and the counter-holding element is made possible via a cutout in the household refrigeration appliance component. The recess is completely covered by the backing part on the foam side.

In one exemplary embodiment, a carrier wall, which is additional to the side walls and to the base wall and in which the holding element is integrated, is arranged in the volume space. This support wall is a separate wall from the side walls and the base wall. This also makes it possible for the holding element to be arranged on a component that is stable in this regard. This improves the mechanical coupling with the counter-holding element. Undesirable deformations can be avoided in this way.

In one embodiment it is provided that an insertion pocket is formed in the volume space. The holding element protrudes into this insertion pocket. The insertion pocket is also intended for inserting the counter-retaining element. This counter-retaining element is thus snapped onto the retaining element in this insertion pocket, which is formed entirely within the volumetric space of the backing part. A partial volume area is thus formed within the volume space, in which this mechanical coupling between the holding element and the counter-holding element is also arranged in a protected manner. Impairment of this coupling connection can therefore be avoided, in particular when the additional part is subsequently installed in the volume space of the backing part. Furthermore, this also prevents this additional part, for example an electronic module, from being undesirably impaired by the counter-retaining element or the retaining element during assembly.

In one embodiment, this insertion pocket is directly delimited by the support wall.

In addition, in one embodiment, the insertion pocket is directly delimited by a side wall.

In one exemplary embodiment, the insertion pocket is designed with a clear width of between 5 mm and 8 mm, in particular between 6 mm and 7 mm, in particular 6.5 mm. This clear width is in particular the distance between the carrier wall and the opposite side wall, which in each case directly delimit this insertion pocket or the volume of the insertion pocket. Such a configuration provides a relatively wide insertion pocket. This makes it possible to insert the counter-holding element in a particularly simple and targeted manner. Undesirable deformations or bending of the counter-retaining element during assembly, in particular when it is inserted into the insertion pocket, are avoided as a result.

In one embodiment, the insertion pocket is designed as a lateral attachment or lateral extension on a side wall. For this purpose, a side wall that delimits the insertion pocket is designed with a bulge. This is another very advantageous embodiment, since the actual volume space that can be provided by the backing part for the additional part to be mounted is not reduced. Rather, the basic size of the volumetric space of the backing part is increased laterally by this insertion pocket. This bulge can be box-like. In this context, the side wall can be multiply angled in its non-rectilinear and non-planar configuration.

In one embodiment, the bulge extends over a partial length of the sidewall. In particular, this partial length is between 30 percent and 70 percent, in particular between 40 percent and 50 percent, of the total length of this side wall measured along the longitudinal axis of the side wall. As a result, a correspondingly dimensioned body is formed, which enables secure mechanical insertion for the counter-retaining element and provides a mechanically stable coupling and holding of the retaining element with the counter-retaining element in this insertion pocket.

In one embodiment, a clearance is formed between an edge portion of an edge of the support wall facing the base wall and the base wall. In this respect, this is an advantageous embodiment in order to achieve reliable snapping of the counter-retaining element. In the final assembled state, the counter-retaining element engages in this free space between the base wall and the edge section of the edge of the support wall. This also achieves a space-saving concept for this mechanical coupling.

In one embodiment, the holding element is arranged on the edge section of the support wall and extends protruding from the support wall into the volume area of the insertion pocket. This provides an orientation of the holding element in which this orientation is directed perpendicular to the direction of insertion of the counter-holding element into the insertion pocket. It is therefore automatically achieved that when the counter-retaining element is inserted into the insertion pocket, this counter-retaining element slides along the retaining element, in particular if necessary a relative movement between these two components occurs in this regard, and when the counter-retaining element is inserted further into the insertion pocket in the direction of insertion, the retaining element then snaps behind the retaining element he follows. In this rear-snapping state, the counter-retaining element moves into this above-mentioned free space.

In one embodiment, a guide part is arranged on an inner side of the side wall that delimits the insertion pocket. With this guide part, the counter-retaining element can be guided automatically to the retaining element when it is inserted into the insertion pocket. The guide part is in particular arranged in a stationary manner. The counter-retaining element is thus moved in a particularly defined and targeted manner in the insertion pocket in a direction that is particularly advantageous for snapping onto the retaining element. In particular, the guide part is formed in one piece with the side wall.

In one embodiment, the guide part is designed as a guide wedge. In this way, a particularly continuous and uniform movement guidance of the counter-retaining element in the insertion pocket towards the retaining element can be achieved. The guide wedge has a guide surface that is inclined towards the holding element. The guide surface is provided for the counter-support element to slide along when the counter-support element is inserted into the insertion pocket. In addition to or instead of this, it can be provided that this guide surface is designed to hold the snapped-in position of the counter-holding element on the holding element. In such an embodiment, the guide wedge then has a multifunctionality. Both the movement control for reaching the snapped state is made possible in a particularly advantageous targeted manner, and the snapped state is then held particularly securely. An undesired release of this snapped-in state can thereby be avoided in a particularly reliable manner.

In one embodiment, it is provided that the side walls of the backing part have edges that face away from the base wall. In one exemplary embodiment, a circumferential sealing flange is formed on these edges. This is closed all the way round and designed without interruption. In particular, this sealing flange is initially bent outwards and towards the base wall at the interface with these edges of the side walls. Furthermore, it then has a shape which in turn curves in the other direction and thus away from the base wall. A particularly advantageous sealing concept is achieved by such an arrangement and design of the sealing flange. When the backing part is mounted and rests against the wall of the household refrigeration appliance component, this configuration achieves a particularly effective seal of this interface. It is thus also possible in this area to prevent thermal insulation foam from escaping between the backing part and the wall of the household refrigeration appliance component.

In one embodiment, the at least one holding element is designed as a wedge. This geometry enables the counter-retaining element to slide very continuously and evenly along the retaining element when it is inserted into the insertion pocket. Undesirable spreading or jamming can occur as a result be avoided. In addition, this configuration also enables secure snapping with the counter-retaining element.

In one exemplary embodiment, it is provided that the at least one holding element is arranged in a stationary manner. In particular, it is non-resilient. This means that a holding element of this type represents a rigid element on which the counter-holding element makes contact and is guided along when the counter-holding element is inserted into the insertion pocket. Due to the rigid positioning of the holding element, the counter-holding element is elastically bent in this configuration. In order to achieve secure snapping, in this configuration the counter-retaining element, which is resiliently bent during insertion, is designed in such a way that it snaps behind the rigid retaining element.

In particular, it is provided that in the snapped-in state between the retaining element and the counter-retaining element, the counter-retaining element is arranged with its entire width overlapping the bearing surface or the snap-in surface of the retaining element. As a result, a particularly secure snapping is also achieved. In particular, the counter-holding element is a plate-like part, in particular a tab made of sheet metal. This sheet metal thickness is then arranged completely on the bearing surface or snap-on surface of the holding element. A form-fitting snap is formed.

In one embodiment, the backing part is formed in one piece. In particular, it is made of plastic. In particular, the backing part is designed as an injection molded component.

A further aspect of the invention relates to an arrangement with a backing part according to the above-mentioned aspect or an advantageous embodiment thereof and a household refrigeration appliance component separate from the backing part. This household refrigeration appliance component has a wall. A continuous recess is formed in this wall. The backing part is arranged directly on the wall and covers the recess. In particular, the backing part is held on this wall only by a mechanical coupling of at least one holding element with at least one counter-holding element.

• - Bereitstellen des Haushaltskältegerätbauteils, bei welchem in einer Wand des Haushaltskältegerätbauteils eine durchgängige Aussparung ausgebildet wird,
• - Bereitstellen des Hinterlegteils,
• - Aneinanderanführen des Hinterlegteils und der Wand im Bereich der Aussparung, wobei dazu das Hinterlegteil so orientiert wird, dass der nur auf der der Basiswand des Hinterlegteils gegenüberliegenden Seite offene Volumenraum des Hinterlegteils der Wand zugewandt ist,
• - Einführen zumindest eines Gegenhalteelements der Wand in den Volumenraum, insbesondere in eine Einführtasche im Volumenraum, des Hinterlegteils von der offenen Seite des Volumenraums her kommend, wobei das Einführen beim Aneinanderanführen erfolgt,
• - Verschnappen des Gegenhalteelements mit dem Halteelement des Hinterlegteils in dem Volumenraum, so dass dadurch das Hinterlegteil an der Wand haltend anliegt und die Aussparung vollständig durch das Hinterlegteil abgedeckt wird.

A further aspect of the invention relates to a method for assembling a backing part, which is designed in particular according to the above-mentioned aspect or an advantageous embodiment thereof. The backing part is mounted on the household refrigeration appliance component. To do this, the following steps are carried out:

• - Providing the household refrigeration appliance component, in which a continuous recess is formed in a wall of the household refrigeration appliance component,
• - providing the deposit part,
• - Joining the backing part and the wall in the area of the recess, for which purpose the backing part is oriented in such a way that the volume space of the backing part, which is open only on the side opposite the base wall of the backing part, faces the wall,
• - Inserting at least one counter-retaining element of the wall into the volume space, in particular into an insertion pocket in the volume space, of the backing part coming from the open side of the volume space, with the insertion taking place when they are brought together,
• - Snapping of the counter-retaining element with the retaining element of the backing part in the volume space, so that the backing part rests against the wall and the recess is completely covered by the backing part.

The advantages that can be achieved with the assembly method have already been explained above with regard to the backing part and the arrangement. They apply here accordingly.

The insertion pocket is open on the side facing away from the base wall. In particular, this opening forms a partial area of the opening of the volume space of the backing part. During the assembly process, when the counter-holding element is inserted into the insertion pocket, the counter-holding element is pressed in a targeted manner in the direction of the holding element by a guide part in the insertion pocket, which is separate and different from the holding element. The insertion direction in this regard is oriented perpendicularly to the plane of the base wall. During this linear movement of the backing part towards the wall, the counter-holding element is slightly pivoted or bent towards the holding element by this guide part. During the further insertion process, the plate-like counter-retaining element slides past the at least one retaining element and snaps behind it.

The counter-holding element is in particular a plate part. In particular, it is a sheet metal strip. The household refrigeration appliance component is designed in particular as sheet metal. In particular, this wall is designed in one piece. After bending over, the counter-holding element is aligned in the appropriate orientation. This orientation is bent out of the plane in which the recess is formed in the wall. The counter-retaining element preferably has snap tabs. These are formed by cutouts in the counter-holding element. In particular, snap-in elements that are spaced apart in time are formed, which snap behind the holding elements. The free cuts in the counter-retaining element create free spaces into which the retaining element, in particular in its wedge shape, can protrude.

The information “top”, “bottom”, “front”, “back”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” indicates the intended use and intended arrangement of the backing part or the household appliance component given positions and orientations.

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

• 1a eine perspektivische Darstellung eines Ausführungsbeispiels eines Haushaltskältegerätbauteils;
• 1b eine vereinfachte Schnittdarstellung durch ein Ausführungsbeispiel eines Haushaltskältegerätbauteils, welches an einem Ausführungsbeispiel eines Haushaltskältegeräts angeordnet ist;
• 2 eine perspektivische Darstellung einer aus dem Stand der Technik bekannten Anordnung mit einem Hinterlegteil und einer Wand eines Haushaltskältegerätbauteils;
• 3 eine Schnittdarstellung der Anordnung gemäß 2;
• 4 eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Anordnung mit einem Ausführungsbeispiel eines erfindungsgemäßen Hinterlegteils, welches an einer Wand eines Haushaltskältegerätbauteils montiert ist;
• 5 eine perspektivische Schnittdarstellung durch die Anordnung gemäß 4;
• 6 eine weitere perspektivische Schnittdarstellung durch die Anordnung gemäß 4; und
• 7 eine Darstellung gemäß 6 in einer zu 6 unterschiedlichen Perspektive.

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

• 1a a perspective view of an embodiment of a household refrigeration appliance component;
• 1b a simplified sectional view through an embodiment of a household refrigeration appliance component, which is arranged on an embodiment of a household refrigeration appliance;
• 2 a perspective view of an arrangement known from the prior art with a backing part and a wall of a household refrigeration appliance component;
• 3 according to a sectional view of the arrangement 2 ;
• 4 a perspective view of an embodiment of an arrangement according to the invention with an embodiment of a backing part according to the invention, which is mounted on a wall of a household refrigeration appliance component;
• 5 a perspective sectional view through the arrangement according to 4 ;
• 6 a further perspective sectional view through the arrangement according to FIG 4 ; and
• 7 a representation according to 6 in one to 6 different perspective.

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

In 1 a household refrigeration appliance component 1 is shown. In the exemplary embodiment, this is in particular a door 2 for a household refrigeration appliance. The door 2 has a wall 3, which is an outer wall here. In addition, the door 2 has another wall 4, which is an inner wall. Between the wall 3 and the wall 4 a gap is formed. In the finished state of the door 2, this intermediate space is filled with a thermally insulating material, in particular an insulating foam.

In the exemplary embodiment, the wall 3 has a continuous recess 5 . Through this recess 5, the space between the wall 3 and the wall 4 would be freely accessible. This recess 5 is intended for a separate additional part 6, as shown in 1b shown can be arranged. The additional part can in particular be an electronic module. The electronics module can be an operating and/or display unit, for example.

In order to prevent this insulating foam from escaping through the recess 5 when the door 2 is being manufactured and so that this free space in the recess 5 therefore remains, a separate backing part 7, as shown in 1b is shown schematically provided. This backing part 7 is in this intermediate space 8, as shown in 1b can be seen arranged. The backing part 7 is arranged on an inner side or rear side 3a of the wall 3 facing the intermediate space 8 .

As in 1 can be seen, a mounting space 9 for this additional part 6 is formed by this backing part 7 in the area of the recess 5 . This assembly space 9 is provided in particular by a volume space 10 of the backing part 7 . The direct arrangement of the backing part 7 on the rear side 3a of the wall 3 is in 1b to recognize.

In 1b an exemplary embodiment of a domestic refrigeration appliance 11 is shown. This can be, for example, a refrigerator or a freezer or a combined fridge-freezer. The household cold tegerät 11 is designed for storing and preserving food. In addition to the door 2 , the household refrigeration appliance 11 has a housing 12 . This has an outer housing 13 and an inner container 14 . Thermally insulating material is placed in an intermediate space 15 between the outer housing 13 and the inner container 14 . A receiving space 16 for food is delimited by the inner container 14 . The door 2 is movably arranged on the housing 12 .

In 4 a partial area of the door 2 is shown in a perspective view. An arrangement 17 is shown here. The arrangement 17 has the backing part 7 and the wall 3 . When presented in 4 a view of the back 3a of the wall 3 is shown. The backing part 7 is shown in the assembled end state on the wall 3 .

The backing part 7 is in particular designed in one piece. In particular, it is an injection molded part. In particular, it is made of plastic. The backing part 7 has a base wall 18 . In the exemplary embodiment shown, the base wall 18 represents a rear wall. These side walls 19 to 22 are arranged at an angle to the base wall 18 . The side walls 19 to 22 end with rear edges at the lateral edges of the base wall 18. This base wall 18 and the side walls 19 to 22 form a trough with a volumetric space 23 formed by these walls 18 to 22 ( 5 ) educated. The walls 18 to 22 are hole-free or slot-free, so that the volume space 23 is completely closed by these walls 18 to 22 . The volume space 23 has an opening 24 ( 5 ) on. In 5 is a perspective sectional view of the arrangement 17 according to 4 shown in the area of section line VV.

As already in 4 as can be seen, the side wall 20 does not have a rectilinear or flat configuration. This side wall 20 has a bulge 25 . As a result, the volume space 23 is expanded to the side. The bulge 25 is designed here in an angular or box-like manner. It is formed centrally along the length of side wall 20 . Correspondingly, a bulge 26 is also formed on the opposite side wall 22 in one exemplary embodiment.

Through this bulge 25, 26, a lateral attachment is formed in each case. With this lateral attachment, an insertion pocket 27, as shown in 5 is shown can be realized.

A holding element 28 of the backing part 7 is arranged completely within the volume space 23 .

In one embodiment it is provided that the backing part 7 has a support wall 29 . The support wall 29 is a wall that is separate from the side walls 19 to 22 and from the base wall 18 . The support wall 29 is arranged entirely within the volumetric space 23 . The holding element 28 is formed on this support wall 29 . In particular, it is designed in one piece with it. The holding element 28 is formed here in a wedge shape. The retaining element 28 is a snap element. It is designed for mechanical coupling, in particular snapping, to my counter-holding element 30 . The counter-holding element 30 is not part of the backing part 7. The counter-holding element 30 is part of the household refrigeration appliance component, here the door 2, in particular the wall 3. It is formed by bending the sheet material of the wall 3. In particular, the counter-holding element 30 is a plate-like tab here. This preferably has a counter-snapping element 31 . In addition, the counter-retaining element 30 also has a free cut 32 in its plate-like configuration. The holding element 28 can protrude into this cut-out 32 when the coupled state, in particular the snapped state, between the holding element 28 and the counter-holding element 30 is reached. The counter-snapping element 31 has in this in 5 shown mounted end position, the holding element 28 behind or snapped behind.

As can be seen, the holding element 28 protrudes from the support wall 29 and specifically into the insertion pocket 27 . In the exemplary embodiment shown, the insertion pocket 27 is directly delimited on the one hand by the carrier wall 29 and on the other hand by the side wall 20 , in particular that partial area of the side wall 20 which delimits the bulge 25 . A width b1 of this insertion pocket 27 is preferably between 6 mm and 7 mm. The insertion pocket 27 is designed as intended for the insertion of the counter-retaining element 30 . The insertion pocket 27 has an opening 33 through which the counter-holding element 30 can be inserted. This opening 33 faces away from the base wall 18 . The opening 33 represents a partial area of the opening 24 of the volume space 23. As can be seen, this insertion pocket 27 is also designed as a lateral extension due to the bulge 25. The insertion pocket 27 is completely closed to the outside except for the opening 33 . The bulge 25 extends over a partial length of the side wall 20. The partial length is in particular between 30 percent and 70 percent, in particular between 40 percent and 50 percent of the total length of this side wall 20.

as well as in 5 can be seen, between the inside 18a of the base wall 18 and an edge portion 34a of the rim 34 ( 6 ) of this support wall 29 a free space 35 is formed. The counter-snapping element 31 can protrude into this free space 35, which is preferably present. In particular, this holding element 28 is formed with a contact surface or snap-in surface 36 flush with this edge section 34a. As in 5 can be seen, this holding element 28 is designed as a wedge. A slope 28a is oriented in such a way that the counter-holding element 30 faces this slope 28a when it is inserted into the insertion pocket 27 .

In 5 It can also be seen that the side wall 20 has an edge 20a facing away from the base wall 18 . A sealing flange 37 of the backing part 7 is integrally formed on this edge 20a. In this context, the sealing flange 37 initially extends outwards with a first partial area 37a essentially perpendicularly to the side. A second partial area 37b, which is oriented towards the base wall 18, is then formed. This second partial area 37b then transitions into a further partial area 37c, which is curved and is oriented away from the base wall 18 again. This sealing flange 37 then rests on the inside 3a. The sealing flange 37 is completely circumferential.

In 6 the arrangement 17 is shown in a further perspective sectional view. The two retaining elements 28 that are preferably present are shown here. These are formed on the support wall 29 . The two counter-snapping elements 31 that are preferably present are also shown here, which protrude laterally in different directions and are snapped onto the retaining elements 28 . In addition, in 6 It can also be seen that the backing part 7 has a guide part 38 . The guide part 38 is formed entirely within the insertion pocket 27 . It is integrally formed on an inner side 20b of the side wall 20, in particular the bulge 25. In addition, it is also formed on the inside 18a of the base wall 18 . The guide part 38 is designed in particular in the shape of a wedge. It has a guide surface 38a. When inserting the counter-holding element 30 along the arrow P into the insertion pocket 27, the front space of the counter-holding element 30 is contacted with this guide surface 38a and is pressed towards the holding element 28 by this slope as it is further inserted. In particular, the arrangement of the guide part 38 and the holding elements 28 is such that the snapping state is also supported and the 6 shown snapped assembled final state is then held accordingly. This guide part 38 also prevents this snapped-in state from being undesirably released.

In 7 is the design according to 6 shown, but in a too 6 different perspective. The guide surface 38a, which is linear here, can be seen.

If the backing part 7 is mounted on the wall 3, the backing part 7 and the wall 3 are first provided. The backing part 7 is then brought up to the wall 3 coming from the rear side 3a. The counter-holding element 30 , which is the bent tab, then dives into the insertion pocket 27 via the opening 33 along the insertion direction P. During a further insertion movement along the insertion direction P, the front edge of the counter-holding element 30 then contacts the guide surface 38a of the guide part 38. As a result, this counter-holding element 30 is then moved towards the holding element 28 during a further insertion movement along the direction P.

During this insertion, the retaining elements 28 then reach through the cut-outs 32 and when the counter-retaining elements 30 are inserted correspondingly deeply into the insertion pocket 27, the snap-in elements 31 then also engage or snap behind the retaining elements 28.

The same occurs in the area of the insertion pocket 26 with a further counter-holding element 30 there.

Reference List

1

Backing part/household refrigerating appliance component

2

door

3

Wall

3a

back

4

Wall

5

recess

6

additional part

7

backing part

8th

space

9

assembly room

10

volume space

11

domestic refrigeration appliance

12

Housing

13

outer case

14

inner container

15

space

16

recording room

17

arrangement

18

base wall

18a

inside

19

Side wall

20

Side wall

20a

Side wall

20b

inside

21

Side wall

22

Side wall

23

volume space

24

opening

25

bulge

26

bulge

27

insertion pocket

28

holding element

29

support wall

30

counter-hold element

31

counter snap element

32

free cut

33

opening

34

edge

34a

edge section

35

free space

36

snap area

37

sealing flange

37a

subarea

37b

subarea

37c

subarea

38

guide part

38a

guide surface

100

backing part

101

base wall

102

Side wall

103

Side wall

104

Side wall

105

Side wall

106

Wall

107

tab

108

outside

109

snap element

110

snap element

111

edge flange

112

gap

113

recess

b

Broad

b1

Broad

P

Arrow

Claims (15)

Backing part (7) for a household refrigeration appliance component (1), with a base wall (18) and side walls (19, 20, 21, 22) which end at the base wall (18), so that the base wall (18) and the side walls (19 to 22) a trough is formed with a volumetric space (23) delimited by the walls (18 to 22), and with at least one retaining element (28) which is provided for coupling to a counter-retaining element (30) of the household refrigeration appliance component (1), if the backing part (7) is mounted on the domestic refrigerating appliance component (1) in a holding manner, characterized in that the holding element (28) is arranged in the volume space (23). Backing part (7) after claim 1 , characterized in that in the volume space (23) a support wall (29) is arranged, on which the holding element (28) is integrated. Backing part (7) after claim 1 or 2 , characterized in that in the volume space (23) an insertion pocket (27) is formed, into which the holding element (28) protrudes and which is intended for inserting the counter-holding element (30) for snapping with the holding element (28). Backing part (7) after claim 2 and 3 , characterized in that the insertion pocket (27) is directly delimited by the support wall (29). Backing part (7) after claim 3 or 4 , characterized in that the insertion pocket (27) is directly delimited by a side wall (19 to 22). Backing part (7) according to one of the preceding claims 3 until 5 , characterized in that the insertion pocket (27) as a lateral extension is formed, wherein for this purpose a side wall (19 to 22) which delimits the insertion pocket (27) is formed with a bulge (25). Backing part (7) after claim 6 , characterized in that the bulge (25) extends over a partial length of the side wall (19 to 22), in particular over a partial length that is between 30% and 70%, in particular between 40% and 50%, of the total length of the side wall ( 19 to 22). Backing part (7) according to one of the preceding claims, characterized in that a free space (35 ) is formed. Backing part (7) after claim 8 , characterized in that the holding element (28) is arranged on the edge section (34a) of the support wall (18) and is arranged with a contact surface (36) flush with the edge section (34a). Backing part (7) according to one of the preceding claims, characterized in that a guide part (38) is arranged on an inner side (20b) of the side wall (19 to 22) which delimits the insertion pocket (27), with which the counter-retaining element (30 ) can be guided automatically to the holding element (28) during insertion. Backing part (7) after claim 10 , characterized in that the guide part (38) is a guide wedge with a guide surface (38a) inclined towards the holding element (28), the guide surface (38a) being provided for the counter-support element (30) to slide along when the counter-support element (30) is in the insertion pocket (27) is inserted and/or the guide surface (38a) is designed to hold the snapped position of the counter-holding element (30) on the holding element (28). Backing part (7) according to one of the preceding claims, characterized in that the side walls (19 to 22) have edges (20a) which face away from the base wall (18), a peripheral sealing flange (37) being formed on these edges (20a). is. Backing part (7) according to one of the preceding claims, characterized in that the at least one holding element (28) is designed as a wedge. Arrangement (17) with a backing part (7) according to one of the preceding claims, and with a household refrigeration appliance component (1) which has a wall (3, 4) in which a continuous recess (5) is formed, the backing part (7 ) is arranged on the wall (3, 4) and covers the recess (5). Method for assembling a backing part (7) according to one of the preceding ones Claims 1 until 13 on a household refrigeration appliance component (1), in which the following steps are carried out: - providing the household refrigeration appliance component (1), in which a continuous recess (5) is formed in a wall (3, 4) of the household refrigeration appliance component (1), - providing the backing part (7), - joining the backing (7) and the wall (3, 4) in the area of the recess (5), for which purpose the backing (7) is oriented so that it rests only on the base wall (18) of the backing (7) the opposite side of the open volume space (23) of the backing part (7) faces the wall (3, 4), - introducing at least one counter-retaining element (30) of the wall (3, 4) into the volume space (23), in particular into a Insertion pocket (27) in the volume space (23) of the backing part (7) coming from the open side of the volume space (23), the insertion taking place when they are brought together, 7) in the volume space (23), so that the backing part (7) rests against the wall (3, 4) and the recess (5) is completely covered by the backing part (7).

Images