Garage door with a modular extension and garage unit featuring frame elements connected via corner connectors

DE502022006769D1Active Publication Date: 2026-02-12BOSCH SIEMENS HAUSGERATE GMBH
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Patent Information

Application Number
DE502022006769
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-08-03
Filing Date
2022-07-27
Publication Date
2026-02-12
Estimated Expiration
2042-07-27

AI Technical Summary

Technical Problem

Existing cooking appliance doors with modular attachments are complex in design and require multiple components, making assembly difficult and visually unappealing.

Method used

A door design featuring a modular attachment with a frame composed of interconnected profile sections and corner connectors, allowing for easy assembly and integration of additional functions without additional components, using aluminum or plastic profile parts with miter joints and snap hooks for secure coupling.

Benefits of technology

The design simplifies assembly, reduces complexity, enhances visual appeal, and integrates functional elements like handles and lighting while providing robust protection against liquid ingress and maintaining a clear view through the glass.

✦ Generated by Eureka AI based on patent content.
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Description

[0001] The invention relates to a door for a cooking appliance, with a modular attachment arranged on the front side of a first pane of the door. The modular attachment comprises a further pane spaced apart from the first pane, which is held on a frame of the modular attachment. In one installation position of the door, when the door is closed, the first pane is closer to the cooking chamber of the appliance than the further pane. The frame comprises a plurality of frame elements. The invention further relates to a cooking appliance with such a door.

[0002] DE 10 2018 214 143 A1 describes a door for a cooking appliance in which a modular attachment is arranged on the front glass of a glass unit of the door. The modular attachment comprises a functional frame and a front glass unit spaced apart from the front glass unit. A recessed handle of the modular attachment is formed in the upper area of ​​the door, allowing it to be gripped from above. The recessed handle is formed in an upper frame section of the functional frame. For this purpose, the upper frame section has an upwardly projecting limiting rib. A lower frame section of the functional frame is arranged opposite the upper frame section.

[0003] The object of the present invention is to create a door of the type mentioned at the outset in which the modular attachment is particularly simple in design, and to provide a cooking appliance with such a door.

[0004] This problem is solved by a door having the features of claim 1 and by a cooking appliance having the features of claim 15. Advantageous embodiments with expedient further developments of the invention are specified in the dependent claims and in the following description.

[0005] The door according to the invention for a cooking appliance comprises a modular attachment arranged on the front side of a first pane of the door. The modular attachment includes a further pane spaced apart from the first pane, which is held on a frame of the modular attachment. In the door's installed position when closed, the first pane is closer to the cooking chamber of the appliance than the further pane. The frame comprises a plurality of frame elements. Furthermore, the frame has four corner areas in which the frame elements are coupled to one another by means of respective corner connectors of the frame.

[0006] Therefore, when assembling the module attachment, only the frame elements need to be connected with the corner connectors to create the surrounding frame. Once the module attachment is complete, the additional or projecting pane is held or positioned on this frame. Consequently, the module attachment is particularly easy to construct, as assembling the frame is especially simple and requires minimal effort.

[0007] The frame elements feature a miter joint at each corner. A rib of the corner connector is positioned between the opposing end faces of the mitered frame elements. This rib provides a stop for the end faces. This is advantageous for the simple manufacturing of the module attachment and, in particular, the frame. Furthermore, this design allows for a visually appealing appearance of the module attachment's frame, especially when the user views the frame through the additional glass pane.

[0008] By connecting the frame elements to each other via the corner connectors located in each corner of the frame, it is possible to pre-position the frame elements before the frame is connected to the next pane or the next pane is attached to the frame. This is advantageous for the simplified assembly and construction of the module attachment. Due to the pre-positioning of the frame elements during the manufacturing of the module attachment, achieved by the corner connectors, excellent processability for subsequent assembly steps is ensured. One of these assembly steps can include connecting the frame to the next pane, which can be achieved, for example, by gluing or in a bonding process.

[0009] Furthermore, numerous additional functions can be integrated into the corner connectors, thus significantly reducing the complexity of the module attachment's construction. This is because no additional components are required to cover or provide these functions.

[0010] The modular attachment preferably provides an independent, large handle element that a user can grasp to open the door when the door is attached to the housing of the cooking appliance, particularly when it is pivotally mounted around a pivot axis. In this case, no further or additional handle with a handle bar or the like is required to open the door. Instead, the modular attachment can be used as a handle element in a low-effort manner.

[0011] The module attachment can therefore be designed in particular as a component assembly placed in front of the first pane, in particular as the front pane of the door, in which a grip recess is provided by the frame into which a user can reach for the purpose of opening the door, wherein this component assembly has the further pane as an outer closure.

[0012] With a view to ensuring good handling of the handle element formed or provided by the module attachment in this design, it may be provided in particular that the dimensions of the further pane are smaller in height and / or width than the dimensions of the first pane, which may in particular be part of a pane package of the door or cooking appliance door.

[0013] Preferably, the frame elements are designed as profile sections, with the respective end regions of the corner connectors being inserted into corresponding receiving areas of the profile sections. In this way, the corner connectors are largely concealed or disguised by the profile sections. Consequently, the corner connectors do not detract from the overall visual appearance of the surrounding frame comprising the four profile sections. Furthermore, by inserting the respective end region of the corner connector into the corresponding receiving area of ​​the profile section, the coupling of the frame elements via the corner connectors can be achieved particularly easily and reliably.

[0014] Furthermore, suitable frame elements in the form of profile parts can be provided very easily, cost-effectively, and with minimal effort. This is particularly true if the profile parts are made of aluminum or an aluminum alloy, for example, and can be produced by extrusion or casting, especially die casting, or they can be made of sheet metal. Alternatively, the profile parts can be made of plastic, particularly by extrusion and / or injection molding.

[0015] With regard to the quality and visual appearance as well as the stability and weight of the module attachment and especially the frame, it has proven advantageous if the profile parts are designed as extruded profiles made of aluminum or an aluminum alloy.

[0016] Furthermore, with regard to the low weight of the frame elements and thus also of the entire module assembly, it is advantageous if the profile components, especially those made of extruded aluminum, have at least one hollow chamber. Moreover, such a hollow chamber can very easily provide the respective receiving area into which the end of each corner connector is inserted to couple the four frame elements or four profile components together.

[0017] Preferably, each corner connector has at least one rib in its end region. This at least one rib rests against a wall of the profile section in the receiving area, forming an interference fit. Such compression ribs, which undergo plastic deformation due to the interference fit, advantageously allow for a particularly short tolerance chain. Furthermore, a robust cohesion of the frame elements is achieved, which is effected by the corner connectors. In addition, the at least one rib formed in the end region of the corner connector is advantageous for good pre-fixation of the frame elements, thus ensuring easy processing and handling of the frame in a subsequent process step, particularly when bonding it to the next pane.

[0018] Preferably, each corner connector has at least one locking element which engages a corresponding retaining element of the profile section in the receiving area. This ensures a precise end position of the corner connector ends within the respective receiving areas of the profile sections. This end position is reached when the locking element engages the corresponding retaining element of the profile section. Furthermore, providing at least one locking element, particularly one designed as a snap hook, is advantageous for securely pre-fixing the profile sections during the manufacturing or assembly of the module attachment.

[0019] Furthermore, designing the locking elements as snap hooks greatly simplifies assembly when connecting the profile sections via the corner connectors. The snap hooks also provide a clear tactile and / or audible confirmation that the corner connector ends are correctly positioned in their corresponding receptacles, allowing the installer assembling the module attachment to easily feel and / or hear the click.

[0020] The bridge can be provided with particularly little effort if it is formed in one piece with a base body of the corner connector.

[0021] It has proven further advantageous to arrange a fascia element on the bridge, which partially covers the respective visible side of the frame elements adjacent to the bridge that faces the next pane. In this way, a beneficial concealment of the end faces of the frame elements is achieved simply and with minimal effort.

[0022] The aperture element can be provided particularly easily, cost-effectively and with minimal effort if the aperture element is formed in one piece with the bridge.

[0023] Preferably, the aperture element has a structure on one of its surfaces facing the other pane, which is similar to the surface structure that the frame elements have on their visible sides. This results in the frame having a consistently very homogeneous and attractive surface on its visible side.

[0024] Preferably, the cover element arranged on the bridge partially covers a gripping surface of the module attachment, which is provided by the frame elements adjacent to the bridge. This ensures a very secure covering of the sometimes sharp and / or pointed edges of the frame elements, which may be formed on the end faces of the mitered frame elements. Thus, on the one hand, good tactile feedback is achieved, and on the other hand, a user who grasps the module attachment by the gripping surface provided by the frame elements cannot come into contact with the sometimes sharp or pointed end faces of the frame elements.

[0025] Preferably, the cover element has a surface structure in an area adjacent to the gripping surface that is identical to the surface structure of the frame elements on their gripping surfaces. This is also advantageous with regard to a pleasant feel when gripping the module attachment by the user, especially if the user grasps or grips the module attachment in one of the corner areas of the frame.

[0026] Preferably, the corner connector has a recess in at least one transition area. In this transition area, a contact surface formed by the web for one of the end faces of the frame elements and a portion of the corner connector extending in a longitudinal direction of the respective frame element abut each other. This makes it possible to provide a runout radius where the portion of the corner connector abuts the web, while still allowing the end faces to be positioned very close to the web. This makes it particularly possible to achieve a very narrow gap between the end faces of the corner connectors, in which the web is located or occupied. This is advantageous with regard to a largely concealed or barely visible arrangement of the corner connectors in the corner areas of the frame.

[0027] Providing run-out radii on the corner connector where the longitudinal sections of the corner connector abut the web is particularly advantageous due to the resulting high stability and robustness of the corner connector. The latter is especially important when the corner connectors are made of plastic.

[0028] Furthermore, the use of plastic for the corner connectors is advantageous in terms of the associated low costs and the ease with which a variety of additional functionalities can be provided by the corner connectors.

[0029] It has proven advantageous to use identical corner connectors. The use of such identical corner connectors greatly simplifies the manufacturing of the module attachment and, in particular, the frame. This eliminates the need to specify which corner connector should be placed in which corner of the frame. Instead, each corner connector can be positioned in any of the four corners. This approach particularly benefits from a symmetrical frame structure where the frame elements connect or couple, with the corner connectors providing this connection. Furthermore, using identical corner connectors reduces assembly complexity.

[0030] Preferably, the module attachment comprises at least one light source and at least one light guide, the light guide being designed to extract light from the at least one light source. The at least one light source is arranged in the corner region of the frame on a support element of the module attachment. This ensures precise positioning of the light source relative to the light guide, allowing the light from the light source to be introduced into the light guide with minimal obstruction during operation. The light extracted from the light guide is advantageously visible to an observer looking at the door from the front of the other pane.

[0031] In particular, the operating states of the cooking appliance can be advantageously made recognizable by means of the light coupled from the at least one light guide when the door is attached to the housing of the cooking appliance. This makes such operating states particularly easy for the user of the cooking appliance to understand.

[0032] Preferably, the corner connector has a positioning element that at least assists in the correct orientation of the support part in the corner area of ​​the frame. The positioning element makes it very easy to ensure that the support part is located in the desired position in the corner area of ​​the frame when the module attachment is mounted. This is particularly advantageous with regard to coupling the light from the light source into the light guide.

[0033] The carrier part can in particular be designed as a printed circuit board or circuit board on which or on which the at least one light source, in particular designed as a light-emitting diode (LED), is arranged or held.

[0034] The positioning element provided by the corner connector can, in particular, be designed as a projection that engages in a recess of the support member. This facilitates very precise alignment of the support member during the assembly of the module attachment. Alternatively, a projection can be formed on the support member that engages in a recess of the corner connector, either analogously, additionally, or otherwise.

[0035] Preferably, the corner connector has a fastening area to which a cover element of the module attachment is fixed. The cover element conceals a section of the support part. In this way, the cover element provides protection for this section of the support part. This is advantageous, for example, to largely prevent damage to components arranged on the support part, such as electronic components or the like, particularly during the manufacturing of the module attachment or the door.

[0036] Preferably, the cover element at least assists in ensuring the correct positioning of the at least one light guide. By fixing the cover element to the mounting area of ​​the corner connector, the at least one light guide can advantageously be positioned correctly relative to the light source.

[0037] Preferably, the cover element conceals the section of the support part containing the at least one light source. In this way, the at least one light source is particularly well protected by the cover element.

[0038] The fastening area for securing the cover element can be designed, in particular, as a receptacle for a screw. This allows for simple yet precise attachment of the cover element to the corner connector.

[0039] Preferably, the corner connector and / or the frame element in the corner region of the frame has at least one wall element designed to prevent the application of liquid to at least one part of the support element by gravity and / or capillary forces. In this way, it can be easily and largely prevented that liquids such as water and / or grease or the like move towards the at least one part of the support element due to gravity or capillary forces. Thus, a particularly high level of protection for the at least one part of the support element is achieved. This is especially advantageous if sensitive components such as electronic components are located or present in the at least one part of the support element.

[0040] For example, wall elements or similar components can form a labyrinth system within the corner connector and frame element, which, particularly in the critical area of ​​a transition between the corner connector and the adjacent frame element, at least hinders the transport of liquids to critical points or areas of the door. This effectively protects these points or areas of the door, especially those located between the first pane and the next pane, from exposure to liquids.

[0041] Preferably, the corner connectors and frame elements form sections of a guide in which a sealing element of the module attachment is arranged. The sealing element rests against the first pane of the door. This ensures, simply and reliably, that a cavity between the front surface of the first pane and the second pane in the door is protected against the ingress of moist air, dust, water, grease, insects, or the like. This also guarantees that a clear view through the second pane to the first pane, and especially through the first pane into the cooking chamber, remains consistently high-quality.

[0042] The sealing element can be designed, in particular, as a circular cord running along the frame. Additionally or alternatively, the sealing element can be made of a foam material and / or be hollow. Furthermore, it is possible to use an elastomer such as EPDM (ethylene propylene diene monomer rubber) and / or NBR (nitrile butadiene rubber, acrylonitrile butadiene rubber) and / or neoprene and / or silicone or the like to provide the sealing element.

[0043] Due to the preferably provided elasticity of the sealing element, the desired tightness can be achieved very well when pressing the frame against the first disc, which can be achieved in particular by screwing the module attachment to the first disc.

[0044] The cooking appliance according to the invention has the door according to the invention. The door can be moved from a closed position, in which it closes off a cooking chamber of the appliance, to an open position by applying a pulling force to a handle element of the door. For example, the door can be pivoted about a pivot axis extending transversely and / or vertically across the cooking appliance.

[0045] In particular, the modular attachment can provide the handle for opening the door. For this purpose, the modular attachment can include a recessed handle, which may be formed by the frame. A user can grip this recessed handle to apply the pulling force required to open the door.

[0046] The advantages and preferred embodiments described for the door according to the invention also apply to the cooking appliance according to the invention and vice versa.

[0047] Terms such as "top", "bottom", "front", "back", "horizontal", "vertical", "depth direction", "latitude direction", "height direction" and the like indicate the positions and orientations that would be present when the cooking appliance is used and arranged as intended, and when viewed from the perspective of an observer standing in front of the cooking appliance and looking towards it.

[0048] Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments, and the drawings. These show: Fig. 1 is a highly schematic representation of a cooking appliance with a partially open door; Fig. 2 shows the door of the cooking appliance according to Fig. 1 in a front view; Fig. 3 the door according to Fig. 1 in a side view; Fig. 4 in an exploded view of door components, which includes a module attachment serving as a handle element, which is attached to a front side of a door pane, wherein the module attachment comprises a frame having profile parts coupled to one another via four corner connectors; Fig. 5 in an enlarged detail view of the process of coupling two profile parts to one another via one of the four corner connectors; Fig. 6 a partially cutaway view of one of the corner connectors and one of the profile parts; Fig. 7 another partially cutaway view of the corner connector and the profile part according to a variant; Fig. 8 one of the corner connectors in a perspective view and one of the profile parts coupled to this corner connector; Fig. 9 in another schematic perspective view of the frame in the area of ​​two of the profile parts coupled to one another by means of the respective corner connector; and Fig.10 possible or theoretical flow paths of water that could result along a labyrinth system formed in the corner area of ​​the frame.

[0049] In the figures, identical or functionally equivalent elements are provided with the same reference symbols.

[0050] In Fig. 1 A schematic perspective view shows a cooking appliance 1. The cooking appliance 1 comprises a housing 2 with a muffle 3. The walls of the muffle 3 define a cooking chamber 4 of the cooking appliance 1. The cooking appliance 1 also includes a door 5, which is movable, in particular pivotable about a pivot axis, and is attached to the housing 2. The cooking chamber 4 can be closed from the front by means of the door 5 when the door 5 is moved into a closed position. Fig. 1 Door 5 is shown in a partially open position.

[0051] In Fig. 1 Furthermore, a coordinate system illustrates a transverse direction x or width direction of the cooking appliance 1, a depth direction y of the cooking appliance 1, and a vertical direction z of the cooking appliance. When the door 5 is closed, the door 5 accordingly extends essentially in a plane spanned by the vertical direction z and the transverse direction x or width direction. This orientation of the door 5 is shown in Fig. 2 shown, in which door 5 can be seen in a front view.

[0052] In particular, from a synthesis of Fig. 2 with Fig. 3 It is evident that the door 5 has a first pane, which in this case is designed as the front pane 6 of the door 5. Furthermore, the door 5 has a module attachment 7, which is arranged on a front side 8 of the front pane 6. The module attachment 7 comprises a further pane 9 or a projecting pane 9, which is spaced apart from the front pane 6 in the depth direction y.

[0053] In Fig. 3 The door 5 is shown in its installed position, i.e., when the door 5 is attached to the housing 2 of the cooking appliance 1 (compare Fig. 1 Furthermore, door 5 is in Fig. 3 The door 5 is shown in its closed position. In this closed position, the front glass 6 is closer to the cooking chamber 4 of the cooking appliance 1 than the other glass 9. Consequently, a gap is formed between the front glass 6 and the other glass 9.

[0054] Within this gap, a recessed handle 11 is provided by a frame 10 of the module attachment 7, into which a user can grasp to open the door 5 from the Fig. 3 to move the closed position shown to an open position. In other words, to open the door 5, the user can apply a pulling force to a large-area handle element provided by the module attachment 7 of the door 5, and in particular pivot or swing the door 5 open about its pivot axis. For this purpose, in the exemplary embodiment of the door 5 shown here, the module attachment 7, or rather the handle element formed by the module attachment 7, has the recessed handle 11. Therefore, in this case, a handle with a pull bar or the like is not required to open the door 5, as is the case, for example, with the following: Fig. 3 as is evident.

[0055] Door 5 comprises a plurality of door profiles in a manner known per se, wherein of these door profiles in Fig. 3 An example of a side door profile 12 is shown, on the front of which the front glass 6 is arranged. Furthermore, in a manner known per se, the front glass 6, viewed in the depth direction y of the cooking appliance 1, can be a front glass of a glass pack of the door 5, wherein such a glass pack can comprise a plurality of glass successive in the depth direction y.

[0056] From a synthesis of Fig. 2 with Fig. 3 It is particularly evident that the front window 6 has larger dimensions in the vertical direction z and in the transverse direction x than the further window 9 placed in front of it, which belongs to the module attachment 7.

[0057] Furthermore, it is from Fig. 3 It is evident that the recessed handle 11 is formed in the upper area of ​​the door 5, as well as in the side areas of the door 5 and additionally in the lower area of ​​the door 5. Accordingly, the user can grasp the module attachment 7 both on its top and on the sides extending in the vertical direction z in order to open the door. Fig. 1 to move the pivot axis shown into the open position. If, on the other hand, the door 5 is designed to pivot open about a pivot axis arranged in the upper area of ​​the housing 2, the user can reach into the recessed handle 11 formed in the lower area of ​​the door 5.

[0058] Fig. 4 Figure 1 is an exploded view showing individual components of the door 5 and, in particular, the module attachment 7. Accordingly, the frame 10 comprises four frame elements, which, in the exemplary embodiment of the module attachment 7 shown, are designed as four profile parts 13, 14. According to the exploded view in Fig. 4 The frame 10 comprises two profile parts 13 extending in the transverse direction x in the installation position of the door 5 when the door 5 is closed, in the form of an upper profile part 13 and a lower profile part 13. Furthermore, the frame 10 comprises two profile parts 14 extending in the vertical direction z when the door 5 is closed, in the form of a Fig. 4 left profile part 14 and one in Fig. 4 right profile part 14.

[0059] Furthermore, the frame 10 comprises four corner connectors 15, which are designed as identical parts or structurally identical components and are arranged in the respective corner areas of the frame 10. The frame elements or profile parts 13, 14 are coupled to one another by means of the corner connectors 15. Accordingly, each of the corner connectors 15 couples one of the profile parts 13 extending in the transverse direction x with one of the profile parts 14 extending in the vertical direction z.

[0060] The module attachment 7, which provides the handle element with the recessed handle 11, can, for example, be connected to the front window 6 by a plurality of screws 16, wherein of the five screws 16 shown here by way of example, in Fig. 4 For the sake of clarity, only some are marked with a reference symbol. The windshield 6 has screw holes 17 corresponding to the screws 16, of which, also for the sake of clarity, are shown in Fig. 4 Only some are marked with a reference symbol.

[0061] In this case, the number of screws 16, and thus also the number of screw holes 17, is greater in the upper area of ​​the windshield 6 than in the lower area. This ensures a particularly high contact pressure in the upper area, where it is essential to prevent water from penetrating the space between the windshield 6 and the other pane 9 due to gravity, when mounting the module attachment 7 to the windshield 6. For example, three screw holes 17 can be provided in the upper area of ​​the windshield 6 and only two screw holes 17 in the lower area.

[0062] In Fig. 4 As a further component of the module attachment 7, a frame 18 designed in the manner of a passe-partout is shown, which has a plurality of inclined viewing surfaces 19 (compare Fig. 2 These inclined viewing surfaces 19 are visible to an observer looking through the front pane 9 towards the front pane 6. When the door 5 is coupled to the cooking appliance 1, the viewing surfaces 19 can be illuminated by light emitted or coupled from light guides 20, with each of the four light guides 20 extending along one of the profile parts 13, 14.

[0063] In Fig. 4 Furthermore, respective holders 21, designed in the manner of enclosures, are shown, which also extend along the profile parts 13, 14 and from which in Fig. 4 In an analogous manner to the optical fibers 20, only some are provided with a reference symbol. In particular, the light coupled out of the optical fibers 20 is emitted into the surroundings towards the viewer at the visible surfaces 19 of the frame 18 when the respective light sources of the module attachment 7, which can be designed in particular as light-emitting diodes 22, emit light during operation.

[0064] One such light-emitting diode 22 is in Fig. 9 This is shown as an example. Accordingly, it is from Fig. 9 It is evident that these light sources are also arranged in a respective corner area of ​​the module attachment 7. Operating the light sources allows, in particular, ambient lighting to be provided by coupling the light emitted by the light sources out of the light guides 20, thereby illuminating the viewing surfaces 19.

[0065] In order to avoid any impairment, in particular to the components of the module attachment 7 that provide such lighting, the door 5 has a sealing element, in this case designed as a circumferential sealing cord 23, which is pressed against the front side 8 of the front window 6 when the module attachment 7 is connected to the front window 6, whereby this connection is realized in this case by screwing the module attachment 7 to the front window 6.

[0066] The sealing cord 23 is guided along a groove-shaped guide 24, which in this case is formed by the corner connectors 15 in conjunction with the profile parts 13, 14 (compare Fig. 9 Accordingly, sections of this guide 24 or groove, into which the sealing cord 23 is inserted, are formed by the corner connectors 15, and further sections of the guide 24 are formed by the profile parts 13, 14 adjacent to the respective corner connectors 15. With the module attachment 7 mounted to the front glass 6, the sealing cord 23 ensures that the gap between the front glass 6 and the attached glass 9 is sealed against, for example, humid air, dust, water, grease, insects, or the like.

[0067] In particular, from a synthesis of Fig. 4 with Fig. 5 It is evident that the profile parts 13, 14, which are designed as aluminum extrusion profile parts, have receiving areas 25 into which the respective end areas 26 of the respective corner connector 15 are inserted. Fig. 5 This is illustrated by arrows 27, showing how, during the assembly of the module attachment 7, the end faces 28 of the profile parts 13, 14, which have a miter in the corner area, are moved towards each other when the end sections 26 are inserted into the receiving areas 25. The profile parts 13, 14, which are mitered or cut in this case, preferably have at least one hollow chamber. This results in an advantageously low weight of the profile parts 13, 14.

[0068] Out of Fig. 5 It is further evident that the respective corner connector 15 has locking elements designed as snap hooks 29, which, when the profile parts 13, 14 are coupled to each other by means of the respective corner connector 15, engage a corresponding retaining element, for example in the form of a respective wall 30 of the profile part 13, 14 (compare Fig. 9 and Fig. 10 These snap hooks 29 serve in particular to pre-fix the profile parts 13, 14 in the assembly process, i.e. during the manufacture of the frame 10 of the module attachment 7. In a subsequent process step, the profile parts 13, 14, pre-fixed by means of the corner connectors 15, can then be connected to the attached disc 9, for example by gluing the frame 10 to the disc 9.

[0069] From the in Fig. 6 The sectional view shown of one of the profile parts 13 and the corner connector 15 shows that the corner connector 15 preferably has at least one rib 31, which is designed as a compression rib. Accordingly, a portion of the corner connector 15 containing the rib 31 is received in the receiving area 25 of the respective profile part 13, 14 in an interference fit. The rib 31, which is plastically deformed due to the interference fit, rests against a wall 32 of the profile part 13. A stop 33 is provided by a wall area of ​​the corner connector 15 opposite the rib 31. This stop 33 also rests against a wall 34 of the profile part 13, as shown. Fig. 6 approximately on an inner side 35 of this wall 34.

[0070] Out of Fig. 6 Furthermore, the shape of the recessed handle 11, into which the user can grasp to open the door 5, is clearly visible. The additional pane 9 arranged on a front face 36 of the frame 10 (compare Fig. 3 and Fig. 4 ) is in Fig. 6 only shown in certain areas.

[0071] In Fig. 7 Figure 1 shows a variant of the coupling of the corner connector 15 with one of the profile parts 13. In this variant, at least one rib 31 is oriented in a different direction than in Figure 2. Fig. 6 . According to the exemplary illustrations in Fig. 6 and in Fig. 7 Therefore, at least one rib 31 can be oriented, for example, in the vertical direction z or in the transverse direction x.

[0072] In the variant according to Fig. 7 The rib 31, designed as a compression rib, rests against an inner surface 37 of a wall 38 of the profile section 13. Furthermore, in this variant, the stop 33, which is opposite the rib 31, also abuts an inner surface 39 of another wall 40 of the profile section 13.

[0073] By using the Fig. 6 and Fig. 7 The described interaction of the respective rib 31 and the stop 33 with the respective walls 32, 34, 38, 40 of the profile section 13 provides very short tolerance chains. These short tolerance chains are advantageous with regard to a secure coupling of the profile sections 13, 14 to each other via the corner connectors 15.

[0074] In particular, from a synthesis of Fig. 6 or Fig. 7 with Fig. 5 It is clearly evident that the profile parts 13, 14 provide respective grip surfaces 41 in the area of ​​the recessed handle 11. The user can grasp the module attachment 7, which serves as a handle element, on these grip surfaces 41, which define the recessed handle 11, when opening the door 5. Where these grip surfaces 41 of the adjacent profile parts 13, 14 in the respective corner area are close to each other, the respective corner connector 15 has a cover element 42 (compare Fig. 5 and Fig. 8 ).

[0075] The cover element 42 has a surface structure in the area adjacent to the gripping surfaces 41 that is identical to the surface structure of the profile parts 13, 14 on their gripping surfaces 41. This provides a very pleasant feel when the user grips the module attachment 7. Furthermore, this cover element 42 advantageously covers the sometimes sharp-edged or pointed end faces 28 of the profile parts 13, 14. This prevents the user from coming into contact with such sharp-edged areas of the profile parts 13, 14. By slightly overlapping the profile parts 13, 14 adjacent to the end faces 28, the cover element 42 ensures reliable coverage of these areas of the profile parts 13, 14, independent of manufacturing tolerances of the corner connector 15 and the profile parts 13, 14.

[0076] The aperture element 42 is arranged on a web 43, which in this case, like the aperture element 42, is formed integrally with a base body of the corner connector 15, which is preferably made of plastic.

[0077] This web 43 provides a stop for the end faces 28 of the profile parts 13, 14 when the end faces 28 are moved towards each other during the assembly of the frame 10, as shown in Fig. 5 This is illustrated by the arrows 27.

[0078] Preferably, the corner connector 15 has respective recesses 44, the position of which is in Fig. 8 This is illustrated by corresponding arrows. The recesses 44 are formed in transition areas in which a contact surface formed by the web 43 for the respective end face 28 of the profile parts 13, 14 (compare Fig. 5 ) and a section of the corner connector 15 extending in the longitudinal direction of the respective profile part 13, 14 adjoin each other. The corresponding sections of the corner connector 15 thus point in the vertical direction z and in the transverse direction x of the door 5 when the door 5 is closed. One of these sections, namely the one extending in the transverse direction x and thus in the direction of the (in Fig. 8 (not shown) profile part 13 extending sub-section 58 of the corner connector 15 is in Fig. 8 to see.

[0079] Such recesses 44 contribute to the formation of a minimal gap at the contact surfaces of the profile parts 13, 14 with the corner connector 15. Therefore, run-out radii can be provided on the corner connector 15, which is made of plastic, in the areas of the recesses 44 without having to increase the gap between the end faces 28 of the profile parts 13, 14.

[0080] In Fig. 9 The superimposed disk 9 is shown in a view of its back 45, i.e., of its front 36 (compare Fig. 6 and Fig. 7 ) the opposite side and the side facing away from the viewer of the closed door 5 is shown in part. Furthermore, in Fig. 9 It is evident that the light sources arranged in the respective corner area, in the form of at least one light-emitting diode 22 shown as an example, are mounted on a carrier part in the form of a circuit board 46. In addition to the light-emitting diodes 22, connectors 47 are arranged on the circuit board 46. The light sources, in particular, can be supplied with electrical energy via the connectors 47 by connecting at least one suitable (not shown) electrical cable.

[0081] Furthermore, it is from Fig. 9 It is evident that the corner connector 15 has a positioning element in the form of a projection 48, which engages in a recess 49 formed in the circuit board 46 when the module attachment 7 is mounted. Thus, the corner connector 15 also serves to pre-fix the circuit board 46, which carries the at least one light source, for example in the form of the at least one light-emitting diode 22.

[0082] Furthermore, the corner connectors 15 preferably also support the positioning of the light guides 20 and the holders 21. For this purpose, the module attachment 7 includes a cover element designed here as a corner cap 50. The cover element in the form of the corner cap 50 also conceals a section of the circuit board 46 containing the light-emitting diodes 22.

[0083] The corner cap 50 has a through-opening 51. A screw 52 passes through this through-opening 51 to fix the corner cap 50 in the corner area of ​​the frame 10. The screw 52 engages in a mounting area of ​​the corner connector, which in this case is designed as a receptacle 53, and this receptacle 53 or screw receptacle is formed integrally with the base body of the corner connector 15.

[0084] By screwing the screw 52, ​​which passes through the opening 51, into the receptacle 53, a positive connection and alignment of the corner cap 50 and the circuit board 46 in the corner area of ​​the frame 10 is ensured. Furthermore, the corner cap 50 secures the holders 21 and thus also the light guides 20 held in the respective holders 21 in the respective corner area of ​​the frame 10.

[0085] Short tolerance chains can also be implemented due to the provision of the screw 52 that engages in the receptacle 53. This has a beneficial effect on the manufacturing process during the assembly of the module attachment 7.

[0086] In Fig. 9 Furthermore, a wall element 54 of the corner connector 15 is shown, which, together with walls 30 or wall elements of the profile parts 13, 14, serves to form the groove or guide 24 for the sealing cord 23 (compare Fig. 4 to provide.

[0087] In Fig. 10 The flow paths illustrated by arrows 55 are those which a liquid such as water would follow due to gravity with the door 5 closed, if, despite the provision of the sealing cord 23, water were to penetrate into the module attachment 7 in one of the corner areas of the frame 10. According to the illustration in Fig. 10 The corresponding wall elements of the corner connectors 15 and / or the profile parts 13, 14 ensure that electrical and / or electronic components, particularly those located on the circuit board 46, are protected from exposure to liquids. In this context, the corner connector 15 and the profile parts 13, 14 form a labyrinth system.

[0088] In particular, an end region of the snap hook 29 and / or at least one further wall element 57 of the corner connector 15 can be Fig. 10 at least hinder the exposure of circuit board 46 to liquid water. This is particularly evident from a review of Fig. 9 with Fig. 10 As can be seen, the comparatively deep immersion of the further wall element 57 of the corner connector 15 into the profile part 14 leads to an extension of a flow path for the water, even if the water in the corner area of ​​the frame 10 is transported due to capillary forces.

[0089] Preferably, the corner connectors 15 are designed as identical parts or similar components, so that a similarly constructed corner connector 15 can be used in all four corner areas of the frame 10. This reduces the complexity of assembling the module attachment 7. Furthermore, integrating the various receiving functions into the corner connector 15 proves advantageous for reducing complexity, as additional components are not required to cover or provide such functions.

[0090] In Fig. 10 Furthermore, visible sides 56 of the profile parts 13, 14 are shown, onto which the front or front 36 is viewed (compare Fig. 6 ), i.e., along the depth direction y, the viewer looking at door 5 looks when door 5 is in its closed position (compare Fig. 2 and Fig. 3 Preferably, the aperture elements 42 have a structure on their surface facing the further disc 9 which is designed in the same way as a surface structure that the profile parts 13, 14 have on these visible sides 56. Then the entire visible area of ​​the module attachment 7 is shaped in the same way with regard to the surface structure.

[0091] To meet optical requirements with the module attachment 7, the gap between the profile parts 13, 14 in the area of ​​the corner connectors 15 is kept particularly small, for which purpose at least one recess 44 has been integrated into all surfaces adjacent to the butt surfaces or end faces 28. In this way, the run-out radii of the corner connector 15 can also be brought out of a contact area of ​​the profile parts 13, 14.

[0092] Furthermore, the cover element 42 ensures that the sometimes sharp and pointed edges of the profile parts 13, 14 are covered in the respective corner area. The short tolerance chain is advantageous in this respect. Because of this short tolerance chain, the overhang of the cover element 42 beyond the respective profile part 13, 14 in the respective corner area can be kept extremely small. Bezugszeichenliste

[0093] 1 Cooking appliance 2 Housing 3 Muffle 4 Cooking chamber 5 Door 6 Front window 7 Module attachment 8 Front 9 Window 10 Frame 11 Recessed handle 12 Door profile 13 Profile part 14 Profile part 15 Corner connector 16 Screw 17 Screw hole 18 Frame 19 Visible surface 20 Light guide 21 Holder 22 LED 23 Sealing cord 24 Guide 25 Receipt area 26 End area 27 Arrow 28 Front 29 Snap hook 30 Wall 31 Rib 32 Wall 33 Stop 34 Wall 35 Inside 36 Front 37 Inside 38 Wall 39 Inside 40 Wall 41 Handle surface 42 Cover element 43 Web 44 Recess 45 Back 46 Circuit board 47 Connector plug 48 Projection 49 Recess 50 Corner cap 51 Through opening 52 Screw 53 Receptacle 54 Wall element 55 Arrow 56 Visible side 57 Wall element 58 Partial area x Transverse direction y Depth direction z Vertical direction

Claims

1. Door (5) for a cooking appliance (1), with a module attachment (7), which is arranged on a front side (8) of a first pane (6) of the door (5), wherein the module attachment (7) comprises a further pane (9) which is spaced apart from the first pane (6), which is held on a frame (10) of the module attachment (7), wherein the first pane (6), in an installation position of the door (5), when the door (5) is closed, is closer to a cooking compartment (4) of the cooking appliance (1) than the further pane (9), and wherein the frame (10) comprises a plurality of frame elements (13, 14), characterised in that the frame (10) has four corner regions, in which the frame elements (13, 14) are coupled to one another by means of corner connectors (15) of the frame (10) in each case, wherein the frame elements (13, 14) have a mitre in the corner region in each case, wherein a web (43) of the corner connector (15) is arranged between opposing end faces (28) of the frame elements (13, 14) which have the mitre, and wherein a stop for the end faces (28) is provided by way of the web (43).

2. Door (5) according to claim 1, characterised in that the frame elements (13, 14) are designed as profiled parts having, in particular, at least one hollow chamber, wherein respective end regions (26) of the corner connectors (15) are introduced into respective receiving regions (25) of the profiled parts.

3. Door (5) according to claim 2, characterised in that the respective corner connector (15) has in the end region (26) at least one rib (31) which, forming a press-fit in the receiving region (25), rests against a wall (32, 38) of the profiled part.

4. Door (5) according to claim 2 or 3, characterised in that the respective corner connector (15) has at least one latching element designed in particular as a snap hook (29), which latching element engages in the receiving region (25) behind a corresponding retaining element (30) of the profiled part.

5. Door (5) according to one of the preceding claims, characterised in that the web (43) is designed as being integral to a base body of the corner connector (15).

6. Door (5) according to one of the preceding claims, characterised in that a screen element (42) is arranged on the web, is designed in particular as being integral to the web (43), which screen element partially covers a respective visible face (56) of the frame elements (13, 14) adjacent to the web (43), which visible face faces the further pane (9), and / or partially covers a grip area (41) of the module attachment (7), which in particular provides a grip element for opening the door (5), which grip area is provided by way of the frame elements (13,14) adjacent to the web (43).

7. Door (5) according to claim 6, characterised in that the screen element (42) has a structure on a surface facing the further pane (9), which structure is designed similarly to a surface structure, which the frame elements (13, 14) have on their visible faces (56), and / or the screen element (42) has a surface structure in a region adjacent to the grip area (41), which grip area is designed similarly to a surface structure, which the frame elements (13, 14) have on their grip areas (41).

8. Door (5) according to one of the preceding claims, characterised in that the corner connector (15) has a set-back area (44) in at least one transition region, in which an attachment area formed by way of the web (43) for one of the end faces (28) of the frame elements (13, 14) and a subregion (58) of the corner connector (15) extending in a longitudinal direction (x, z) of the respective frame element (13, 14) are adjacent to one another.

9. Door (5) according to one of the preceding claims, characterised in that the corner connectors (15), made in particular of a plastic material, are designed as identical parts.

10. Door (5) according to one of the preceding claims, characterised in that the module attachment (7) comprises at least one light source (22) and at least one light guide (20), which is designed for coupling out the light of the at least one light source (22), wherein the at least one light source (22) is arranged in the corner region of the frame (10) on a carrier part (46) of the module attachment (7) which is designed, in particular, as a circuit board.

11. Door (5) according to claim 10, characterised in that the corner connector (15) has a positioning element designed in particular as a projection (48) which engages into a recess (49) of the carrier part (46), which positioning element supports a positionally correct alignment of the carrier part (46) in the corner region of the frame (10).

12. Door (5) according to claim 10 or 11, characterised in that the corner connector (15) has a fastening region designed in particular as a receptacle (53) for a screw (52), to which fastening region a cover element (50) of the module attachment (7) is fixed, which cover element covers the portion of the carrier part (46) having in particular the at least one light source (22) and / or at least supports a positionally correct placement of the at least one light guide (20).

13. Door (5) according to one of claims 10 to 12, characterised in that the corner connector (15) and / or the frame element (13, 14) has at least one wall element (30, 57) in the corner region of the frame (10) which is designed to impede application of a liquid to at least one partial region of the carrier part (46) caused by gravitational force and / or capillary forces.

14. Door (5) according to one of the preceding claims, characterised in that by way of the corner connectors (15) and by way of the frame elements (13, 14), respective portions of a guide (24) are formed in which a sealing element (23) of the module attachment (7) is arranged, wherein the sealing element (23) rests against the first pane (6) of the door (5).

15. Cooking appliance (1) with a door (5) according to one of the preceding claims, wherein the door (5) can be moved from a closed position, in which the door (5) closes off a cooking compartment (4) of the cooking appliance (1), into an open position through application of a pulling force on a grip element of the door (5) provided in particular by the module attachment (7).