WO2017036782A1

WO2017036782A1 - Refrigeration appliance, in particular domestic refrigeration appliance, and method for producing same

Info

Publication number: WO2017036782A1
Application number: PCT/EP2016/069389
Authority: WO
Inventors: Andreas Lindel; Christian Schmid; Hans Peter Werner; Günter PRESCHL
Original assignee: BSH Hausgeräte GmbH
Priority date: 2015-09-03
Filing date: 2016-08-16
Publication date: 2017-03-09
Also published as: DE102015216921A1

Abstract

The invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, comprising a body and a door, which jointly bound a storage chamber by means of inner walls (18), and comprising a backing piece (1), which is arranged on an inner wall (18) in such a way that the backing piece faces away from the storage chamber and which is exposed at least in some sections by means of a cut-out (20) in the inner wall (18), and an electronic assembly (23). According to the invention, the electronic assembly (23) is fastened directly to the backing piece (1) by means of a first fastener formed on the backing piece (1) and a second fastener formed on the backing piece. The invention further relates to a method for producing a refrigeration appliance.

Description

Refrigerating appliance, in particular household refrigerating appliance, and method for its production

The invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, with a body and a door, which together define a storage space by inner walls, and with a backing part, which is arranged facing away from the storage space on an inner wall and which is at least partially exposed by a cutout in the inner wall , and with an electronics assembly.

It is known in refrigerators, especially in household refrigerators such as refrigerators, freezers or fridge-freezers,

To attach electronic assemblies to an inner wall of the storage room. The electronic assemblies include, for example, lighting units. Such electronic assemblies are partially attached directly to the inner wall, e.g. screwed. In order to be able to lead electrical lines to the electronic units, backing pieces are often used. These separate from the inner wall components are arranged on the insulation side, i. they are positioned with respect to the inner wall on a side facing away from the storage space and surrounded by insulation material. This also results in the possibility of at least partially connecting the electronic modules with the backing part.

Thus, from DE19730357A1 a refrigerator is known, with an inner boundary wall which delimits a usable cooling space and with a lighting and control unit. An opening of the inner boundary wall is covered by an insert which is disposed within insulation material and provides electrical connections for the lighting and control unit. The lighting and control unit is on the one hand connected to the insert and on the other hand bolted to the inner boundary wall. The present invention has for its object to provide a refrigeration device described above, which allows mounting of an electronic assembly in the interior with a high Positioinierungsgenauigkeit and in a simple manner and to provide a method for its preparation. This object is solved by the features of the independent claims.

Accordingly, the object in a refrigeration device, in particular household refrigeration appliance, with a body and a door which together define a storage space by inner walls, and with a backing part, which faces away from the storage space on an inner wall and which at least partially by a cutout in the inner wall is exposed, and with an electronic assembly solved in that the electronic assembly is fastened by means of a first, formed on the backing part, fastening means and a second, formed on the backing part fastening means directly to the backing part.

By the electronic assembly is attached by at least two separate fastening means formed on the backing part, the positioning accuracy is essentially given only by the backing part. This can be designed by appropriate choice of material and shape, in particular the fastening means, such that a high positioning accuracy can be achieved in a cost effective and simple manner. In particular, the dependence of the positioning accuracy of the electronic assembly on the shape, position or the material properties of the inner wall can be reduced or completely eliminated.

By having the electronics assembly mounted directly to the backing member, a captive support is only possible by cooperation between the attachment means on the backing member and the electronics assembly itself, e.g. Counter-fastening means, guaranteed. An additional support of the electronic assembly on the inner wall serving merely as a support, in particular for sealing against moisture entry into the electronic assembly, is possible independently of this. According to the invention, however, the electronic assembly does not have an immediate form-fitting, non-positive or cohesive captive connection to the inner wall.

As the backing part is at least partially exposed by the cutout, the exposed portion can be used for mounting the electronic assembly. Preferably, the backing part completely covers the cutout or closes it completely.

Preferred embodiments are given in the subclaims.

According to one embodiment, it is provided that the first fastening means forms a positive connection with a first counter-fastening means on the electronic assembly. In particular, only a positive connection is formed. The positive connection can be formed by a engagement or engagement between the first attachment means and the first graft attachment means. Also conceivable is a locking connection or a snap connection.

According to one embodiment, it is provided that the second fastening means forms a positive and non-positive connection with a second counter-fastening means on the electronic assembly. In particular, only a positive and non-positive connection is formed. In particular, in connection with the exclusively form-fitting connection between the first fastening means and the second fastening means, an easy to be manufactured and mounted connection between the electronic assembly and the backing part can be achieved, which allows a permanent and secure attachment due to the frictional connection.

According to one embodiment, it is provided that the second fastening means a

Internal thread of a blind hole and / or the second counter-fastening means is a through hole. These preferably cooperate with an additional, separate fastening element, such as a screw or a pin.

Longitudinal axes of the blind hole and the through hole are preferably aligned.

The blind hole prevents the penetration of insulation material in the storage room.

The internal thread is preferably cut by screwing a screw. The electronic assembly can be bolted directly and thus precisely to the backing part.

In order to fix the position of the electronic assembly better, it is provided according to an embodiment that in an assembly position of the electronic assembly a facing the Hinterlegteil end face of a through hole comprehensive pin contacted the electronics assembly facing bearing surface of the backing part. Already prior to screwing, a prefixing of the layer is thus provided by providing an end stop in a direction oriented perpendicular to the inner wall. Preferably, this is a flat contact, for example, a complete end face of the pin with the exception of the opening of the through hole contact the contact surface.

According to one embodiment, it is provided that the backing part has a stop which, in a mounting position of the electronic assembly, contacts a counter stop of the electronic assembly and blocks a displacement along a direction substantially parallel to a section of the inner wall surrounding the cutout. This allows the electronics assembly to be displaced along this direction during assembly until the stop and counter stop contact and hinder further movement. The final position of the electronic assembly in the mounted state is thus defined exactly by the backing part. Preferably, it is provided that the stop is formed by an arcuate, in particular arcuate, rib and / or the counter-stop is formed by a pin, in particular a circular cylindrical pin. On the one hand, such a shape is simple and inexpensive to manufacture, on the other hand, a precise positioning is possible. If the backing part has a blind hole, it is conceivable that the rib at least partially surrounds the blind bore.

According to one embodiment, it is provided that the backing part has a circumferential skirt whose free edge rests against a surface of the inner wall facing away from the storage space and that in a substantially vertical plan view of the inner wall, the free edge encloses the fastening means and counter fastening means. The skirt is facing away from the storage space with respect to the inner wall. In particular, the apron is surrounded on one side by insulating material. The apron seals the cutout opposite the insulation material. Preferably, the skirt is an integral part of the Hinterlegteiles, in particular thin-walled and elastic. The skirt may define a cavity between the backing member and a portion of the inner wall, which cavity is free of insulation material. This section of the inner wall is thus not fixed by the insulating material. Of the The section is not in contact with insulation material and thus is relatively elastic or deformable, in contrast to those sections that are in contact with insulation material. In this embodiment, it may be provided that the electronics assembly, in particular a housing element of the electronic assembly, exclusively contacts the inner wall in a section which is enclosed in a substantially vertical plan view of the inner wall by the free edge of the skirt. This advantageously allows for sealing contact between the electronics assembly and the inner wall to prevent moisture from the storage space from entering the electronics assembly. Namely, by the housing member contacting the inner wall in a region which is not in contact with insulating material, this region is easily deformable and the housing element can be pressed against this section sealingly. Preferably, it is provided that an edge of the housing element which faces the inner wall and preferably completely revolves or closes, makes contact with the inner wall over its entire extent.

According to one embodiment, it is provided that the backing part has at least two retaining tabs which engage behind two opposite edges of the cutout.

According to one embodiment, it is provided that a first retaining tab protrudes from a wall lying substantially perpendicular to the inner wall and a second retaining tab is arranged on a stop which protrudes from a wall lying substantially perpendicular to the inner wall.

According to one embodiment, it is provided that the backing part has line fastening means for frictionally and / or positively fastening a line, in particular an electrical line. In particular, it can be provided that the backing part has a holder for a plug. Thus, an insulation-side guided electrical line can be fastened with a plug in the backing part. When mounting the electronic unit, it can be connected directly to the plug. Preferably, the refrigeration device has an electrical line which is guided in the backing part. According to one embodiment, it is provided that the backing part has a body which is preferably substantially cuboid, in particular for routing, which is substantially completely closed by a cover at an end section facing away from the inner wall. On the one hand, this body serves to achieve the most stable possible anchoring in the insulation material. On the other hand, the body may also provide two or more electrical connector plugs. According to one embodiment, it is provided that the electronic assembly comprises a camera module and / or a light emission unit. The electronic assembly preferably comprises a housing element and this housing element is attached directly to the attachment means of the backing part. The electronics assembly is preferably non-destructively removable from the backing member, thereby facilitating repairs. In this case, however, it may be provided that the electronic module is not tool-free, ie only with the aid of a tool from the backing part is removable.

The backing part is preferably in one piece and / or made of plastic. For example, it can be a plastic injection-molded component. The backing part is preferably already fastened self-supporting on the refrigeration device without an electronic assembly attached thereto.

Insofar as the inner wall having the cutout is an inner wall of the body, the inner wall is closed by the inner container, e.g. made of plastic.

The present invention further achieves the stated object by a method for producing a refrigeration appliance, in particular according to one of the preceding embodiments, comprising the method steps:

Introducing a cutout, in particular by punching, into an inner wall providing, in particular by injection molding, a backing piece which has a first retaining tab for engaging behind a first edge of the cutout, which protrudes from a first wall of the backing part, and which backing part has a second retaining tab for engaging behind a second edge of the cutout, which is formed on a stop, which stop protrudes from a second wall of the backing part

Inserting the backing piece into the cutout by sliding the backing piece along a first direction until the second wall abuts a second edge of the cutout, and then rotating the backing piece and sliding the backing piece against the first direction until the first one hits Wall at a first edge of the cutout, so that the first wall contacts the first edge and the stop the second

Rand contacted

Attaching an electronic assembly directly to the backing part by means of a first, formed on the backing part, fastening means and a second, formed on the backing part, fastening means

An embodiment of the present invention will be explained with reference to the accompanying drawings. Showing:

1 shows a backing part of a refrigeration device according to the invention,

Fig. 2 shows a detail of a refrigerator according to the invention without electronic assembly and

3 shows a section through an inner wall of a refrigeration device according to the invention.

The backing 1 shown in Fig. 1 in three views is made in one piece from plastic by an injection molding process. The backing part 1 consists essentially of a cuboid body 2 with four flat side walls 3a, 3b, 3c, 3d. Two opposite side walls 3a, 3c are connected by intermediate walls 4a, 4b located inside the body 2. At an end portion 5, which is remote in the installed state of the inner wall, the body 2 is open. After assembly, the body 5 can be closed at this end portion 5 by an adhesive tape. At the opposite end portion 6 of the body 2, an around the body 2 circumferential skirt 7 is arranged. The skirt 7 is thin-walled to be elastic during assembly to be braced against the inner wall. The skirt 7 is at an angle from the side walls 3a, 3b, 3c, 3d, in order to ensure the required sealing of the inner wall to insulation material even with appropriate deformation during installation.

On a side wall 3a, a wire fixing means 8 for holding an electric wire is provided. A second conduit attachment means 9 is arranged on an end wall 10 of the body 2. At the end portion 6, which faces in the mounted state of the inner wall, retaining tabs 1 1 a, 1 1 b, 1 1 c, 12a, 12b, 12c are arranged on two opposite side walls 3b, 3c. At the other two opposite side walls 3a, 3d further retaining tabs 13a, 13b are arranged, which are used as fastening means. On the end wall 10 pin 14 is formed, which receives a blind hole 15 whose opening 16 faces the end portion 6. At the end wall 10 a rib 17 is further formed. The rib 17 has a circular arc shape which partially surrounds the opening 16. The rib 17 serves as a stop to allow an exact assembly of an electronic assembly.

FIG. 2 shows a section of a refrigerator according to the invention without an electronic assembly, wherein a section of an inner wall 18 with the backing part 1 attached thereto is shown. The retaining tabs 1 1 a, 1 1 b, 1 1 c, 12a, 12b, 12c engage behind two opposite edge portions 19a, 19b of a substantially rectangular section 20 of the inner wall 18 to ensure a positive connection. At two further edge portions 21 a, 21 b of the cutout 20 retaining tabs 22 a, 22 b are arranged. Fig. 3 shows a section through an inner wall of a refrigeration device according to the invention.

On the backing part 1, an electronic assembly 23 is attached directly. For this purpose, a housing element 24 on inner surfaces retaining bracket 25. These brackets 25 engage behind the retaining tabs 13a, 13b when mounting the electronic assembly 23th For this purpose, the electronic assembly 23 is pushed along the direction A until a counter-acting circular cylindrical pin 26, the rib 17 contacted. In this end position of the electronic assembly 23, the blind hole 14 are aligned with a through hole 27. In the end position, the electronic assembly 23 is fixed with a screw 28, which passes through the through hole 27 and the blind hole 14.

An edge 29 of the housing member 24 contacts the inner wall 18 in a portion 31 which is enclosed by a free edge 30 of the skirt 7. The free edge 30 seals a surface facing away from the storage space of the inner wall 18 from the insulating material 32 from. The portion 31 is thus not fixed by insulating material 32 and thereby more flexible than those areas of the inner wall 18, which are fixed by insulating material 32. When inserting and screwing the electronics module 23, the edge 29 can therefore create a sealing against the inner wall 18 by the section 31 can deform.

LIST OF REFERENCE NUMBERS

1 backing piece

2 bodies

3a-3d side wall

4a, 4b intermediate wall

5 end section

6 end section

7 apron

8 conduit fasteners

9 conduit fasteners

10 end wall

11 a-1 1c Retaining tab

12a-12c holding tab

13a, 13b holding tab

14 cones

15 blind hole

16 opening

17 rib

18 inner wall

19a, 19b edge

20 section

21 a, 21 b edge

22a, 22b holding tab

23 electronic module

24 housing element

25 retaining clips

26 pegs

27 through hole

28 screw

29 edge

30 free edge

31 section

32 insulation material

Claims

Refrigerating appliance, in particular household refrigerating appliance, with a body and a door, which together define a storage space through inner walls (18), and with a backing piece (1) which is disposed on an inner wall (18) facing away from the storage space and which is separated by a cutout (20 ) in the inner wall (18) is at least partially exposed, and with an electronic assembly (23), characterized in that the electronic assembly (23) by means of a first, on the backing part (1) formed fastening means and a second, formed on the backing part, fastening means is attached directly to the backing part (1).

Refrigerating appliance according to claim 1, characterized in that the first fastening means with a first counter-fastening means on the electronic assembly (23) forms a positive connection.

Refrigerating appliance according to claim 1 or 2, characterized in that the second fastening means with a second counter-fastening means on the electronic assembly (23) forms a positive and non-positive connection.

Refrigerating appliance according to claim 3, characterized in that the second fastening means is an internal thread of a blind hole (15) and / or the second counter-fastening means is a through hole (27).

Refrigerating appliance according to claim 4, characterized in that in a mounting position of the electronic assembly (23) a Hinterlegteil (1) facing end face of a through hole (27) comprising pin (26) contacts one of the electronic assembly (23) facing contact surface of the backing part.

Refrigerating appliance according to one of the preceding claims, characterized in that the backing part (1) has a stop which in a mounting position of the electronic assembly (23) contacts a counter-abutment of the electronic assembly (23) and the displacement along a substantially to the cutout surrounding portion of the inner wall (18) parallel direction (A) blocked.

7. Refrigerating appliance according to claim 6, characterized in that the stop by an arcuate, in particular arcuate, rib (17) is formed and / or the counter-stop by a pin (26), in particular a circular cylindrical pin (26) is formed.

8. Refrigerating appliance according to one of the preceding claims, characterized in that the backing part (1) has a peripheral skirt (7) whose free edge (30) rests against a surface facing away from the storage space of the inner wall and that in a substantially vertical plan view the inner wall of the free edge (30) includes the fasteners and counterfastening means.

9. Refrigerating appliance according to claim 8, characterized in that the

Electronic assembly (23), in particular a housing member (24) of the electronic assembly (23), the inner wall (18) contacted only in a portion (31), in a substantially vertical plan view of the inner wall by the free edge (30) of the skirt (7) is included.

10. Refrigerating appliance according to one of the preceding claims, characterized in that the backing part (1) has at least two retaining tabs (1 1 a, 1 1 b, 1 1 c, 12a, 12b, 12c), the two opposite edges (19a, 19b ) of the cutout (20) engage behind.

1 1. Refrigerating appliance according to claim 10, characterized in that a first retaining lug (11a) protrudes from a substantially perpendicular to the inner wall (18) lying wall and a second retaining tab (1 1 b) is arranged on a stop which is of a substantially protrudes perpendicular to the inner wall (18) lying wall.

12. Refrigerating appliance according to one of the preceding claims, characterized in that the backing part (1) has line fastening means (8,9) for non-positive and / or positive fastening of a line, in particular an electrical line.

13. Refrigerating appliance according to one of the preceding claims, characterized in that the backing part (1) has a, preferably substantially cuboid, body (2), in particular for routing, which on one of the inner wall (18) facing away from the end portion (5) is substantially completely closed by a cover.

14. Refrigerating appliance according to one of the preceding claims, characterized in that the electronic assembly (23) comprises a camera module and / or a lighting unit.

15. A method for producing a refrigerating appliance, in particular according to one of the preceding claims, comprising the method steps:

Introducing a cutout (20), in particular by punching, into an inner wall (18)

Providing, in particular by injection molding, a backing piece (1) which has a first retaining tab (11a, 11b, 11c) for engaging a first edge (19a) of the cutout (20) from a first wall of the frame Backing part (1) protrudes, and which backing part (1) has a second retaining tab (12a, 12b, 12c) for engaging behind a second edge (19b) of the cut (20) which is formed on a stop, which stop from a second wall of the backing part (1) protrudes

Inserting the backing piece (1) into the cutout (20) by pushing the backing piece (1) along a first direction until the second wall abuts against a second edge (19b) of the cutout (20) and subsequent rotation of the piece Backing part and displacing the backing piece against the first direction until the first wall abuts the first edge (19a) of the cutout so that the first wall forms the first edge

(19a) contacted and the stop the second edge (19b) contacted

Fixing an electronic assembly (23) directly to the backing member (1) by means of a first fastener formed on the backing member and a second fastener formed on the backing member (1)