DE102015216922A1 - Household appliance door and household appliance with a household appliance door - Google Patents

Abstract

The invention relates to a domestic appliance door, in particular household refrigerator appliance door (1), having a cavity (2) which is filled at least in regions with insulating material and which is at least partially bounded by a first wall (3) on which a rib (5) is formed, and with a backing disposed on the insulating side part (14), which is at least partially disposed within the rib (5). According to the invention, provision is made for the first wall (3) to have a first cutout (11) through which a first section (13) of the backing piece (14) arranged outside the rib (5) is exposed.

Description

The present invention relates to a household appliance door with a cavity, which is at least partially filled with insulating material and which is at least partially bounded by a first wall on which a rib is formed, and with an isolation side arranged Hinterlegteil, which is at least partially disposed within the rib , Such household appliance doors are used in particular as household refrigeration appliance doors. In this case, the first wall typically forms a so-called inner wall of the door, so when the door is mounted on a domestic refrigeration appliance, it faces a storage space.

It is known to provide domestic refrigeration appliance doors with insulation-side arranged metallic backing parts. This allows the mounting of attachments that direct large (weight) forces into the first wall (e.g., door racks). An assembly of such attachments exclusively on the first wall usually separates, since this wall is made only of a thin-walled plastic board.

So is out of the DE 10 2005 021 537 A1 a door for a refrigerator known, with an outer wall and an inner wall, which surround a gap, and projecting from the inner wall vertical spars. The spars are at least partially formed by a vertical profile part. A backing part extends vertically over the entire length of the vertical profile part, which is anchored by screws with the backing part of sheet metal.

The present invention has as its object to provide a household appliance door mentioned above, which allows a precise connection of an attachment, in particular an electronic assembly, to the first wall.

This object is achieved according to the invention by providing, in the case of a household appliance mentioned at the outset, that the wall has a first cutout through which a first section of the backing part arranged outside the rib is uncovered.

The present invention allows by means of the first cutout a direct connection of an attachment, such as a camera module or a light emission unit, to the backing part. Compared to a connection to the first wall, this allows improved positioning accuracy. In particular, can be done by an appropriate choice of the material of the backing part and its geometry, especially the first section, a very stable and high reproducibility with respect to the position binding, which also allows a good seal the connection point to the entry of moisture prevent.

The arrangement of the backing part at least in sections within the rib allows a further improvement of the connection of an attachment, in particular its position accuracy. In this way, namely, the backing part itself is already arranged with a good repeatability precise and yet easy in the cavity.

By disposing the first cutout such that a first portion of the backing piece disposed outside the rib is exposed, positioning of an attachment such as a camera unit becomes free from the actual shape and position of the rib. In this case, the invention makes use of the fact that only the backing part is to be arranged at least in sections within the rib in order to increase the positional accuracy. The actual attachment, in particular joints thereof (e.g., mechanical connections or conduit connections such as electrical leads) can be placed at a position of the first wall independent of the rib: namely, only by the choice of the position of the first cutout.

By the first portion of the backing part is exposed, this is visible, for example, for a mechanic and freely accessible - at least as long as no attachment is attached to this or concealed.

The backing part is arranged on the insulation side, i. the backing part is located substantially completely within the cavity, which is at least partially filled with insulation material. By "substantially" it is meant herein that a majority of the volume of the backing member is disposed within the cavity, e.g. more than 75 percent, preferably more than 90 percent.

Preferred embodiments are given in the subclaims and the embodiments described below.

In order to facilitate the assembly, in particular in order to avoid leakage of the insulating material, the first cutout preferably exposes exclusively the first portion of the backing piece. In particular, the first section does not expose the insulation material, so this is not visible. Preferably, an edge of the first cutout completely contacts the backing piece, so that there is a connection sealing with respect to the insulation material.

According to one embodiment, it is provided that the backing part is in one piece. It is thus inexpensive to manufacture. In contrast to multi-part backing parts, the dimensional accuracy is also increased. Ultimately, therefore, the position accuracy of Hinterlegteiles within the household appliance door can be further increased.

According to one embodiment it is provided that the backing part consists of plastic. For the inventive increase in the positional accuracy of the position of the backing within the finished manufactured household appliance door and thus ensuring an exact location of an attachment showed that a completely made of plastic, such as. Polypropylene (PP), produced backing part is sufficient. In addition, a plastic backing part has a lower thermal conductivity than a metal backing part, so that the insulation effect is better in the case of a household refrigerator door.

According to one embodiment, it is provided that the backing part is positively connected and / or non-positively connected to the first wall or can be connected. In particular, it can be provided that the backing part is connected to the first wall in a form-fitting and / or non-positively connected manner independent of the insulating material or can be connected. By "independent" is to be understood that this connection is guaranteed even before the introduction of the insulation material. It is also possible that the backing part is secured captively to the first wall independently of the insulating material or can be fastened. These embodiments lead to a simplification of the assembly: the backing part is typically arranged in the cavity before it is at least partially introduced with insulating material. An unintentional displacement of the backing part before the introduction of the insulating material is thus prevented; the error rate is reduced or lower requirements are placed on the manufacturing process. The positive and / or non-positive connection can be designed for a tool-free assembly. The backing part can thus be inserted during assembly by hand and optionally aligned.

It is also possible that the backing part is attached to the first wall exclusively or additionally by a separate holding means, which is located entirely within the cavity. In particular, an adhesive tape is suitable as such holding means.

The backing part and / or the first wall may have cooperating positioning means. The positioning means may in particular represent a positive connection. The positioning means help that an exact position of the backing part is achieved when mounted on the wall and that this position also during the further assembly, e.g. the introduction of the insulating material is maintained. Thus, according to one embodiment, it is provided that the backing part has a positioning projection, which engages in the first cutout. Preferably, the positioning projection projects only into the first cutout. In order to avoid disturbing contours of the backing part during assembly of an attachment part, the positioning projection preferably does not protrude out of the first cutout. In order to enable a simple mounting of the backing part, it can be provided that the positioning projection does not engage behind an edge of the first cutout. It is possible that the positioning projection additionally enters into a frictional connection with an edge of the first cutout. In particular, a Untermaßpassung between the two elements can be selected. Alternatively, a clearance fit can be selected between the positioning projection and the rim. Although this can also cause the desired position of Hinterlegteiles within the first wall with appropriate dimensioning. The assembly can be simplified by the clearance fit, however.

According to one embodiment it is provided that the positioning projection is formed by a closed frame. With a view perpendicular to the first section, an edge of the first section completely encloses the frame. The frame may be formed by a rib which projects from a support plate of the backing part. The height of the rib is preferably smaller than the wall thickness of the first wall in the region of the first cutout.

An additional improvement of the positioning accuracy of the backing part can be done by additional connections to the first wall. Thus, according to one embodiment, it is provided that the backing part has at least one spring element which contacts a side wall of the rib. In the mounted position of the backing part, the spring element is braced, in particular elastically deformed. In particular, it is possible that the backing element is clamped between two facing sides of the rib by the spring element. The spring element allows captive retention of the backing part during assembly before the insulation material is introduced into the cavity.

It is possible that the at least one spring element is formed by a spring tab. In particular, if the backing part is made of plastic, this can be a simple yet effective deadlock can be achieved. Preferably, the spring tab lies flat against a side wall of the rib. It is possible that a free end portion of the spring tab is angled, and abuts a portion of the first wall adjacent to the side wall of the rib. This end portion represents a stop, which defines an end position of the backing part when inserted into the rib. Preferably, the backing part does not contact a bottom of the rib. As a result, an exact position of the backing part can always be ensured, even if the wall thickness of the first wall varies due to production; Thus, the respective present situation of the bottom of the rib for the depth position of Hinterlegteiles irrelevant.

According to one embodiment, it is provided that the backing part has at least one holding means for a line, which line is exposed at least in sections through the cutout. Thus, for example, an electrical line can be guided into an attachment by the backing part. The holding means may be designed to hold a plug, preferably with a positive fit. If the backing part has a frame as a positioning projection, the retaining means is preferably arranged completely within the frame.

The first cutout can thus be used, in conjunction with the first section, for the mechanical connection of the backing piece to the first wall. On the other hand, the first cutout and the first section may serve to guide all of the leads required for an attachment into the attachment. The location of the first cutout outside of the spar is advantageous because, on the one hand, it is easy to feed the cables from the cavity to the first cutout and, on the other hand, connecting the leads to the attachment is easy to accomplish.

However, the first section can continue to be used to allow a mechanical connection of an attachment to the backing part. In order to ensure an exact position of the attachment part, however, further sections of the backing part are preferably exposed. Thus, according to one embodiment, it is provided that the wall has at least one further cutout, through which a further section of the backing part arranged within the rib is exposed. This additional section can be used for an additional positive and / or non-positive connection between the attachment and backing part. The location of the further section within the rib has the following advantages: On the one hand, the greatest possible distance between different connection points can be made possible, which leads to a stable connection. In addition, the attachment can be attached to two different wall portions of the first wall; in particular on wall sections that are at an angle to each other, so that the attachment between these wall sections can be stably maintained.

Preferably, the first cutout and the further cutout are not connected to each other. The further cutout is preferably located completely in a side wall of the rib. The further section preferably preferably exposes the further section of the backing part and in particular not parts of the insulation material.

In order to enable a simple joining of the backing part to the first wall, it can be provided that the further section does not protrude into the further cutout.

According to one embodiment, it is provided that the at least one further detail exposes a fastening means of the backing part, in particular an opening of a blind hole of the backing part, for fastening an attachment part.

According to one embodiment, it is provided that an attachment, in particular an electronic assembly, is attached directly to the backing part on a side facing away from the cavity of the wall. The attachment may be a camera module and / or a light emission unit. By the attachment is attached directly to the backing part, the desired position is ensured. Finally, the backing piece can be made much more precise than would be possible with the first wall.

According to one embodiment, it is provided that the attachment has a locking projection which engages in a receptacle of the backing part on the first portion in order to ensure a positive connection between the attachment and the backing part. It can be a press fit. The locking projection may have a rectangular outer shape. The locking projection may be formed by a closed frame having a circumferential stop to define an end position when inserted into the receptacle. The locking projection may have a passage through which passage a line is guided.

According to one embodiment, it is provided that the attachment is fastened by means of a screw to the further section and that the attachment has a pin with a screw passage, which pin engages in an opening of a blind hole surrounding paragraph of Hinterlegteiles.

According to one embodiment, it is provided that the rib extends vertically and the backing part extends along a longitudinal extent of the rib only between end portions of the rib. To attach a fixture such as a camera module, a relatively small backing piece, which for example has a vertical extent of less than 20 cm, preferably already less than 10 cm, is sufficient.

An inventive household appliance, in particular domestic refrigeration appliance, is equipped with a household appliance door according to at least one of the preceding embodiments for closing a storage space formed by a body, the wall of the household appliance door is facing the storage room with the door closed.

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

1 a household appliance door according to the invention,

2 a section through the plane II-II of 1 .

3 the backing part from the household appliance door 1 .

4 the household appliance door 1 with an additional attachment and

5 a section through the plane VV in 4 ,

1 and 2 show a household appliance door according to the invention in the form of a household refrigerator door 1 , This has a cavity 2 on, with - not shown - insulation material, namely polyurethane foam, filled. The cavity 2 is through a first wall 3 partially limited, so this wall 3 represents a limitation for the insulation material. The cavity 2 is through more walls 4 limited. The first wall 3 represents an interior wall of the household appliance door. This wall 3 is thus a storage room of the household appliance, such as a refrigerator or freezer room facing.

At the first wall 3 is a rib 5 integrally formed. The rib 5 is a substantially flat main surface 6 the first wall 3 and extends vertically over much of the vertical extent of the first wall 3 , At the rib 5 are retaining projections 7 integrally formed, which serve to keep not shown door racks for storage of refrigerated / frozen goods. This is indicated by the first wall 3 another - not shown - rib, which also extends vertically, so that the door racks can be arranged between the ribs. The cavity 2 also extends into the rib 5 ie also in the rib 5 is arranged insulating material. The rib 5 has two side walls 8th . 9 as well as a floor 10 on.

The first wall 3 points to its main surface 6 a first section 11 on. The cutout 11 is closed at the edge and lies completely in the flat main surface 6 so that also has a border 12 of the cutting 11 lies in a flat surface. The cutout 11 has a substantially rectangular shape.

Through the first section 11 becomes a first section 13 a backing piece 14 exposed. Since already the first section 11 outside the rib 5 is arranged, is also the first section 13 of the backing part 14 outside the rib 5 arranged, although the backing part 14 even at least in sections within the rib 5 is arranged. The one-piece made of plastic backing 14 is arranged on the insulation side, that is essentially completely in the cavity 2 and in particular with its in the direction of the cavity 2 facing surfaces in contact with the insulating material. Due to the foamed polyurethane the backing part becomes 14 thus fixed in its position.

The backing piece 14 , detailed in 3 , is positive and non-positive with the first wall 3 connected.

For this purpose, the backing part 14 on the one hand, a positioning projection 15 on that in the first section 11 intervenes. The positioning projection 15 is formed by a closed frame. The frame stands by a carrier plate 16 from and has a starting from the carrier plate 16 measured height, which is less than the wall thickness of the first wall 3 in the area of the first section 11 , The backing part is thus not on the first section 11 out. However, by the frame having a rectangular shape whose outer dimensions are slightly smaller than corresponding inner dimensions of the edge 12 , a positive connection is made possible. This positive connection already arises during assembly of the backing part 14 even before the insulation material in the cavity 3 is introduced.

The backing piece 14 on the other hand has two spring elements 17 on, making it inside the rib 5 is tense. Each spring element 17 is by a spring tab 18 formed and lies on an inner surface 19 one of the side walls 9 essentially flat. The spring tabs 17 are through sections of the carrier plate 16 educated. On the opposite side wall 8th is that backing piece 14 also by means of the carrier plate 16 flat on. In the in the 1 and 2 shown mounted position of the backing part 14 are the spring tabs 18 elastically braced. Every spring strap 18 has an angled free end portion 19 on. The end section 19 lies on an inner surface section 20 the first wall 3 at. This will be an end stop when inserting the backing part 14 in the rib 5 reached. In particular, is between the ground 10 the rib 5 and an end surface 21 of the inside of the rib 5 located portion of the backing part 14 a free space 22 educated. This free space 22 allows exact positioning of the backing part 14 even with production-related fluctuations in the wall thickness of the first wall 3 ,

By the spring element 17 becomes an independent holder of the backing part 14 on the first wall 3 reached. In particular, before the insulation material in the cavity 2 is introduced, is already a captive holder of Hinterlegteiles 14 reached.

The backing piece 14 has two retaining means 22 . 23 for a line, such as the electrical line 24 , The holding means 22 . 23 have holders for a positive connection of a plug, so that an electrical connection of an attachment can be done easily and safely.

The first wall 3 has two more cutouts 24 . 25 on, each one another section 26 . 27 of the backing part. All excerpts 11 . 24 . 25 are separated from each other, so have separate and closed edges. The other sections 26 . 27 are completely inside the rib 5 arranged and accordingly, the other sections 24 . 25 in one of the side walls 8th the rib 5 arranged.

The other sections 26 . 27 each have openings 28 . 29 of blind holes, which form fastening means to secure an attachment to the backing part can. Possible, as with the further section 25 it is shown that the cutouts have an elongated shape, so that a, for example, cylindrical pin of an attachment when attaching to the backing part 14 can be swung obliquely.

In the 4 and 5 is an attachment 30 attached to the household appliance door shown in the previous figures. The attachment 30 is formed by an electronic module, namely a camera module.

The, in particular captive, attachment takes place directly on the backing part.

For this purpose, the attachment 30 on the one hand on a housing element 31 a locking projection 32 on. This engages in a recording 33 of the backing part 14 a positive fit. The locking projection 32 is formed by a closed frame that forms a passageway 34 surrounds, so that a - not shown - electrical line from the cavity 2 in the attachment 30 can be performed.

On the other hand, the attachment is 30 by means of two screws 35 at the other sections 26 . 27 attached. For an exact positioning of the backing part 14 to allow, has the housing element 31 of the attachment 30 cylindrical pins 36 on that in paragraphs 37 engage and by positive locking an orientation of the attachment 30 enable. The paragraphs 37 surround the openings 28 . 29 ,

LIST OF REFERENCE NUMBERS

1

 Household refrigerator door

2

 cavity

3

 first wall

4

 another wall

5

 rib

6

 main surface

7

 retaining projection

8th

 Side wall

9

 Side wall

10

 ground

11

 first section

12

 edge

13

 first section

14

 backing piece

15

 positioning

16

 support plate

17

 spring element

18

 spring shackle

19

 end

20

 surface section

21

 end face

22

 holding means

23

 holding means

24

 neckline

25

 neckline

26

 section

27

 section

28

 opening

29

 opening

30

 attachment

31

 housing element

32

 locking projection

33

 admission

34

 passage

35

 screw

36

 spigot

37

 paragraph

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102005021537 A1 [0003]

Claims (15)

Household appliance door, in particular household refrigeration appliance door ( 1 ), with a cavity ( 2 ), which is at least partially filled with insulating material and which at least partially by a first wall ( 3 ) is limited to a rib ( 5 ) is formed, and with an isolation side arranged backing part ( 14 ), which at least in sections within the rib ( 5 ), characterized in that the first wall ( 3 ) a first section ( 11 ), through which one outside the rib ( 5 ) arranged first section ( 13 ) of the backing part ( 14 ) is exposed. Domestic appliance door according to claim 1, characterized in that the backing part ( 14 ) positively and / or non-positively with the first wall ( 4 ) is connected or connectable. Domestic appliance door according to claim 2, characterized in that the backing part ( 14 ) a positioning projection ( 15 ), which in the first section ( 11 ) intervenes. Domestic appliance door according to claim 3, characterized in that the positioning projection ( 15 ) is formed by a closed frame. Domestic appliance door according to at least one of claims 2 to 4, characterized in that the backing part ( 14 ) at least one spring element ( 17 ), which has a side wall ( 9 ) of the rib ( 5 ) contacted. Domestic appliance door according to claim 5, characterized in that the (at least one spring element 17 ) by a spring tab ( 18 ) is formed. Domestic appliance door according to at least one of the preceding claims, characterized in that the backing part ( 14 ) at least one holding means ( 22 , 23) for a line ( 24 ), which line ( 24 ) at least in sections through the section ( 11 ) is exposed. Domestic appliance door according to at least one of the preceding claims, characterized in that the wall ( 2 ) has at least one further cutout through which a further portion of the backing piece disposed within the rib is exposed. Domestic appliance door according to claim 8, characterized in that the at least one further detail exposes a fastening means of the backing part, in particular an opening of a blind hole of the backing part, for fastening an attachment part. Domestic appliance door according to at least one of the preceding claims, characterized in that an attachment, in particular an electronic assembly, is attached directly to the backing part on a side facing away from the cavity of the wall. Domestic appliance door according to claim 10, characterized in that the attachment has a locking projection which engages in a receptacle of the backing part on the first portion to ensure a positive connection between the attachment and the backing part. Domestic appliance door according to claim 11, characterized in that the locking projection has a passage through which passage a conduit is guided. Domestic appliance door according to one of claims 10 to 12, characterized in that the attachment is fastened by means of a screw to the further section and that the attachment has a pin with a screw passage, which pin engages in an opening of a blind hole surrounding paragraph of Hinterlegteiles. Domestic appliance door according to at least one of the preceding claims, characterized in that the rib extends vertically and the backing part extends along a longitudinal extension of the rib only between end portions of the rib. Domestic appliance, in particular domestic refrigeration appliance, with a household appliance door according to at least one of the preceding claims for closing a storage space formed by a carcass whose wall of the household appliance door faces the storage room when the door is closed.

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