EP2991448B1 - Cooking device - Google Patents

Description

The present invention relates to a cooking appliance with at least one housing device and at least one cooking chamber formed in the housing device, in which food can be introduced via at least one feed opening. The cooking chamber is associated with at least one microwave device for heating the food, wherein the feed opening of at least one cooking chamber door is closed. The cooking chamber door comprises at least one frame device and at least one disk device.

Cooking devices are often equipped with a variety of functions and can be used very versatile and flexible. Among other things, various modes of operation can be provided in a cooking appliance or other additional functions are possible with a cooking appliance.

For this it may be necessary to provide a variety of technical components on the cooking appliance. However, the space available for the installation of fixed or removable components is limited in a cooking appliance.

In particular, in a cooking appliance, which can be used in a microwave operation, special requirements are placed on the arrangement of technical components, as it must be ensured at all times that no microwave radiation leaking from the oven. The document EP2747515 discloses a cooking appliance according to the preamble of claim 1.

It is therefore the object of the present invention to provide a cooking appliance with a microwave device that offers more space for the installation of technical components.

This object is achieved by a cooking appliance with the features of claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the invention will become apparent from the embodiments.

The cooking appliance according to the invention comprises at least one housing device and at least one cooking chamber formed in the housing device. In the cooking chamber, food can be introduced via at least one feed opening and the cooking space is assigned at least one microwave device for heating the food to be cooked. The loading opening can be closed by at least one cooking chamber door, wherein the cooking chamber door at least one frame device and at least one disc means. In this case, the frame device at the cooking chamber when the cooking chamber door closed side facing at least an extended contact surface, which rests in the closed cooking chamber door at a corresponding contact portion of the housing device. Furthermore, the extended contact surface is assigned at least one stabilizing device.

According to the invention, the charging opening is closed by the cooking chamber door, in particular substantially radiation-tight.

Preferably, the abutment portion of the housing device is used for receiving device components that are either permanently installed on the contact section or can also be arranged removably.

According to the invention, the entire cooking chamber door is to be understood as the frame device, with the exception of the pane device. In this case, the frame means may include, inter alia, spars, cladding surfaces, as well as possibly built joints or hinging devices.

The disk device according to the invention comprises in particular all components of a viewing window in the cooking chamber door. These include, in particular, the windows, which provide the viewing window, seals and preferably also a perforated plate, which serves as a microwave trap of the viewing window.

The contact surface is particularly preferably uniform and defines at the contact portion of the housing device. By such an exact arrangement of the door or the contact surface on the contact section, a particularly good and reliable sealing of the cooking chamber is achieved.

According to the invention, a stabilizing device is to be understood as meaning that the contact surface is stabilized by additional components or also by a machining of the contact surface such that the contact surface, despite its expansion, is resistant to use and can not warp.

The cooking appliance according to the invention offers many advantages. A considerable advantage is that a section for the arrangement of technical components is made available by the special design of the cooking chamber with the extended contact surface and the corresponding contact section on the housing device, wherein by the stabilizer on the contact surface nevertheless a secure sealing of the cooking chamber to microwave radiation is possible.

The stabilization device effectively prevents the extended contact surface of the cooking chamber door when opening, closing or generally during operation warps or twists, so that no circumferential defined distance between the door and feed opening is present. Then microwave radiation could emerge from the cooking chamber in the worst case. This is effectively and reliably prevented by the inventive design of the cooking appliance.

The stabilization device preferably comprises at least one metal sheet. In particular, an additional component is provided, which is received or attached to the contact surface. So z. B. an additional sheet, a metal strip or rods for reinforcement in particular from the inside or from behind to the contact surface glued, welded, soldered or sintered. As a result, in a simple manner, for example, the double sheet thickness is achieved in the contact surface area, whereby the contact surface is stiffer use. In particular, when the sheet is provided from the rear or from the inside of the contact surface, the appearance of the door is not affected.

Particularly preferably, the stabilization device is formed integrally with the contact surface. It can be achieved in particular by processing the material of the contact surface stabilization of the contact surface without having to provide additional components.

In advantageous developments, the stabilization device is provided by at least one deformation of the contact surface. In this case, the stability of the contact surface is increased at least in at least one direction by deforming the contact surface. Thus, the stability of the contact surface is increased, in particular along the longitudinal extent of the deformation.

In expedient refinements, at least two deformations are provided, which in particular are arranged substantially parallel to one another. This makes it possible to stabilize even larger areas or the entire contact surface, so that a stable use and stable contact surface is provided.

Preferably, the deformation is formed by at least one embossment in the contact surface. In this case, the embossment is designed in particular as a bead and can preferably be introduced by a deep-drawing process into the contact surface. By introducing an embossment into the contact surface, it is stabilized along the longitudinal extent of the embossment, since bending in or buckling of the contact surface in the region of the embossing is made more difficult. In order to provide a particularly stable contact surface, the contact surface particularly preferably has a longitudinal extent and a transverse extent, wherein at least one deformation extends along the longitudinal extent of the contact surface. The longitudinal extent of the contact surface is in particular longer than the transverse extent of the contact surface.

Preferably, the frame device is at least partially associated with at least one shaft trap device, wherein the frame device comprises no shaft device on the extended contact surface. Such a wave trap device is preferably designed as a microwave trap and in particular as a λ / 4 trap, which is particularly preferably provided with a closed cooking chamber door circumferentially around the feed opening of the cooking chamber. In order to provide an effective wave trap device, it is necessary that there is a defined distance between the closed cooking chamber door and the feed opening. So that this defined distance can not change in the area of the extended contact surface, the extended contact surface is assigned at least one stabilizing device.

In expedient developments of the contact surface closes at least partially into the interior of the cooking chamber at least one cavity. In such an embodiment, the extended contact surface may not be sufficiently stabilized by other door components, whereby the provision of the stabilization device on the contact surface may be advantageous.

Preferably, the contact surface of the cooking chamber door at least partially made of sheet metal and in particular of a Cr-Ni steel sheet. In particular, the entire frame means or consist of the visible components of the frame means of such a Cr-Ni steel sheet. This makes it possible to provide a visually appealing, robust and easy-to-clean surface for the cooking chamber door. In particular, Cr-Ni steel sheet also has two expedient properties, so that such a cooking chamber door is also suitable for the operation of the cooking appliance with a steam generating device. Cr-Ni sheet steel is insensitive to moisture and does not rust and is also microwave-tight.

Preferably, at least one technical component is assigned in the contact section, which in particular forms the contact section at least in sections. Thus, an installation area is provided in addition to the cooking space, which can accommodate various technical components.

Particularly preferably, the cooking chamber is associated with at least one steam generator device which is suitable and designed to supply the cooking chamber with steam. This makes it possible that the cooking appliance can be used in microwave operation and / or in steam operation, whereby a particularly flexible cooking appliance is provided.

Preferably, at least one water tank of the steam generator device is provided in the contact section of the housing device. In this case, the front of the water tank can preferably terminate flush with the contact section or can also be provided set back. If the water tank is not flush with the contact surface, z. B. a cover flap may be provided which covers the water tank and forms the contact section.

Particularly preferably, the water tank of the steam generator device forms the contact section at least in sections. In this case, the water tank is preferably designed such that the front of the water tank in the inserted state forms a substantially flush surface with the contact portion.

Further advantages and features of the present invention will become apparent from the embodiments, which are explained below with reference to the accompanying figures.

Figur 1

eine rein schematische Ansicht auf ein erfindungsgemäßes Gargerät mit geöffneter Garraumtür;

Figur 2

eine rein schematische Schnittansicht durch eine Garraumtür eines erfindungsgemäßen Gargerätes;

Figur 3

eine vergrößerte Darstellung des markierten Bereichs aus Figur 2; und

Figur 4

der in Figur 3 gezeigte Bereich eines erfindungsgemäßen Gargerätes in einer anderen Ausführungsform.

In the figures show:

FIG. 1

a purely schematic view of an inventive cooking appliance with open cooking chamber door;

FIG. 2

a purely schematic sectional view through a cooking chamber door of a cooking appliance according to the invention;

FIG. 3

an enlarged view of the marked area FIG. 2 ; and

FIG. 4

the in FIG. 3 shown area of a cooking appliance according to the invention in another embodiment.

In FIG. 1 is a purely schematic view of an inventive cooking appliance 1 is shown in a front view. The illustrated cooking appliance 1 is formed in the embodiment shown here as Kombigargerät 100, which includes a microwave device 5 and a steam generator device 22.

The cooking appliance 1 comprises a housing device 2, in which a cooking chamber 3 is formed. The cooking chamber 3 has a feed opening 4 through which food to be cooked can be introduced into the cooking chamber 3. The charging opening 4 of the cooking chamber 3 can thereby be closed with a cooking chamber door 6, wherein this cooking chamber door 6 in FIG. 1 is shown in an open position.

In the cooking chamber 3 introduced food can then be cooked by means of the microwave device 5 and / or the steam generator device 22 in a microwave operation and / or steam operation. The individual functions and settings of the cooking appliance 1 can be adjusted via a control panel 24, which is arranged in the embodiment shown here above the cooking chamber 3 and controls 25 includes.

During operation of the cooking appliance 1, the cooking chamber 3 can be closed by means of the cooking chamber door 6. So that steam can not escape from the cooking chamber 3 in steam operation, a sealing means 26 surrounding the charging opening 4 is provided, which in the embodiment shown here is designed as a rubber seal or silicone seal 27. In order to prevent leakage into the cooking chamber introduced microwave radiation, a microwave trap device 18 is also provided in the cooking chamber door 6, which in FIG. 2 is shown in more detail.

In the embodiment shown here, an abutment section 11 is provided to the right of the cooking chamber, on which technical components 21 can be provided. The contact section 11 and the technical components 21 can be reached when the cooking chamber door 6 is open and are concealed by the cooking chamber door 6 in the closed state. This results in a closed cooking chamber door 6 a visually appealing appearance, with the cooking door open the technical components 21 can reach well.

The technical component 21 may be permanently installed on the contact surface 11 or may be provided removably on this. In the embodiment shown here, a receiving shaft 28 for the water tank 23 of the steam generating device is provided on the contact surface 11.

In this case, the water tank 23 is formed and arranged in the receiving shaft 28 that the front 29 of the water tank 23 in the inserted state of the water tank 23 forms a substantially flush surface with the contact portion 11.

In the exemplary embodiment shown here, the cooking chamber door 6 comprises a frame device 7 and a disk device 8. In this case, the disk device 8 provides a viewing window 30. The frame device 7 comprises all components of the door, which are not provided by the viewing window 30. In this case, the frame device 7 in particular comprises the spars 36 and the cover elements 37.

At the closed cooking chamber door 6 the cooking chamber 3 facing side 9 of the cooking chamber 6, an extended contact surface 10 is provided, which rests with a closed cooking chamber door 6 substantially flush with the abutment portion 11 of the housing device. In order for the leakage of microwave radiation from the cooking chamber 3 is effectively prevented, it must be ensured that the contact surface 10 does not bend or twist. Thus, a constant distance between the closed cooking chamber door 6 and the contact section 11 can be ensured reliably and permanently.

Since the door 6 is designed to be substantially hollow in the area of the contact surface 10 in the exemplary embodiment shown here, the contact surface 10 is not supported by any component of the cooking chamber door. Therefore, a stabilizing device 12 is provided on the contact surface 10, which stiffens the contact surface 10 to us such a durable and reliable concern of the contact surface 10 is ensured at the contact portion 11.

The stabilizing device 12 is provided in the embodiment shown here by three transformations 14, which are formed as stampings 15. The three stampings 15 are arranged substantially parallel to one another and were introduced here into the contact surface 10 by a deep-drawing process. The stabilization device 12 is thus formed integrally with the contact surface 10. In other embodiments, however, the stabilization device can also be provided by at least one separate component.

The contact surface 10 has a longitudinal extent 16 and a transverse extent 17, wherein the longitudinal extent 16 is longer than the transverse extent 17. In this case, the deformations 14 or the stampings 15 extend along the longitudinal extension 16 of the contact surface 10 along the longitudinal extension 16. This ensures that the contact surface 10 is more torsionally rigid, in particular in the direction of the longitudinal extension 16, than without the stabilizing device 12.

The stabilizing device ensures that the contact surface 10 is not distorted even after prolonged and intensive use by opening and closing the cooking chamber door 6 such that a defined contact of the contact surface 10 on the contact section 11 is no longer guaranteed. Then a microwave-tight sealing of the cooking chamber 3 would not be guaranteed by the cooking chamber 6 under certain circumstances. This is avoided by the cooking appliance 1 according to the invention.

In FIG. 2 is the cooking chamber door according to FIG. 1 along the sectional plane AA purely schematically shown in a sectional view. One recognizes the cooking chamber door 6, which the frame device 7 and the disc device 8 comprises. The disk device 8 forms a viewing window 30, which comprises a plurality of disks 31 and a perforated plate 32 as a microwave trap.

In the frame device 7, a wave trap device 18 is provided, which is designed as a microwave trap 33 in the embodiment shown here. In this case, the microwave trap 30 corresponds in construction to a λ / 4 trap 34. The microwave trap 33 is provided in the cooking chamber door 6 in such a way that, when the cooking chamber door 6 is closed, the feed opening 4 rests circumferentially on the housing device 2 of the cooking appliance 1.

It can be seen on the right side of the cooking chamber door 6 that no microwave trap device 18 is provided in the area of the contact surface 10. It is necessary for a secure microwave-tight seal of the cooking chamber 3 that the microwave trap 33 of the cooking chamber 6 is always applied at a defined distance to the housing device 2 of the cooking device 1. To ensure this, a reinforcement of the contact surface 10 is necessary.

Since the cooking chamber door 6 is hollow in the embodiment shown here, following the contact surface 10, the contact surface 10 can not be supported against components of the door 6. Therefore, a stabilization device 12 is provided on the contact surface 10, which is formed here by three transformations 14. By means of these deformations 14 embodied as stampings 15, the contact surface 10 is sufficiently stabilized so that the cooking chamber door 6 is stabilized in this region in such a way that a defined contact of the microwave trap device 18 with the housing device 2 of the cooking device 1 is ensured.

In FIG. 3 is the marked with a circle right area of the cooking chamber door 6 according to FIG. 2 shown purely schematically in an enlarged view. Here, too, one recognizes the disk device 8 and the frame device 7 of the cooking chamber door 6. To the left of the contact surface 10, one recognizes the microwave trap device 18, which is designed as a microwave trap 33 in the manner of a λ / 4 trap 34.

Below the contact surface 10, a cavity 35 is provided, so that the sheet 19 of the contact surface 10 can not be supported against components of the cooking chamber door 6. The sheet 19 is provided as Cr-Ni-Strahlblech 20. Preferably, at least all of the cooking chamber facing sheet metal parts of the Garrumtür 6 made of Cr-Ni-Strahlblech 20 are made.

Cr-Ni radiant panel 20 has the advantage that it is visually appealing, relatively easy to process, and also resistant to moisture. This is particularly advantageous when used on a Kombigargerät 100 with a steam generator device 22, since Cr-Ni-Strahlblech does not rust. Furthermore, Cr-Ni-Strahlblech is microwave-tight.

In FIG. 3 can be seen in the enlarged view consisting of three transformations 14 stabilizing device 12. Formed as Verprägungen 15 transformations 14 have been introduced by a deep-drawing process in the contact surface 10. By the stampings 15, the contact surface along the longitudinal extent 16 of the contact surface 10 is stabilized.

In FIG. 4 is the area of a cooking chamber door according to FIG. 3 of another embodiment cooking appliance according to the invention purely schematically shown in a sectional view. Here, the stabilization device 12 is designed here as a separate component.

The stabilization device is provided in the embodiment shown here by a separate sheet 18 available, which is provided herefrom on the inside or from the rear of the contact surface 10. By the sheet 18, the contact surface 10 is sufficiently stabilized.

Also by such a configuration, a visually appealing result is achieved in which the extended contact surface 10 is stabilized against twisting and / or bending.

LIST OF REFERENCE NUMBERS

1

Cooking appliance

2

housing means

3

oven

4

loading port

5

microwave device

6

oven door

7

frame means

8th

disk means

9

page

10

contact surface

11

contact section

12

stabilizing device

13

sheet

14

transformation

15

Verprägung

16

longitudinal extension

17

transverse extension

18

Wave trap device

19

sheet

20

Cr-Ni-steel sheet

21

technical component

22

Steam generator device

23

water tank

24

control panel

25

operating element

26

seal means

27

Rubber seal / silicone gasket

28

receiving shaft

29

front

30

window

31

disc

32

perforated sheet

33

microwave trap

34

λ / 4 trap

35

cavity

36

Holm

37

cover

100

Kombigargerät

Claims (14)

1. Cooking appliance (1) comprising at least one housing assembly (2) and at least one cooking chamber (3) which is formed in the housing assembly (2) and into which chamber food can be introduced via at least one loading opening (4), at least one microwave device (5) for heating the food being assigned to the cooking chamber (3) and it being possible to close the loading opening (5) by means of at least one cooking chamber door (6), the cooking chamber door (6) comprising at least one frame assembly (7) and at least one window assembly (8), the frame assembly (7) comprising at least one extended contact face (10) on the side (9) which faces the cooking chamber (4) when the cooking chamber door (6) is closed,
   characterised in that
   the at least one contact face (10) rests against a corresponding contact portion (11) on the housing assembly (2) when the cooking chamber door (6) is closed and in that at least one stabilising device (12) is provided on the contact face (10) such that the contact face is warp-resistant despite the extension thereof.
2. Cooking appliance (1) according to claim 1, characterised in that the stabilising device (12) comprises at least one metal sheet (13).
3. Cooking appliance (1) according to either of the preceding claims, characterised in that the stabilising device (12) is formed integrally with the contact face (10).
4. Cooking appliance (1) according to any of the preceding claims, characterised in that the stabilising device (12) is provided by at least one deformation (14) of the contact face (10).
5. Cooking appliance (1) according to the preceding claim, characterised in that at least two deformations (14) are provided, which are in particular arranged substantially in parallel with one another.
6. Cooking appliance (1) according to either of the two preceding claims, characterised in that the deformation (14) is formed by at least one embossed portion (15) in the contact face (10).
7. Cooking appliance (1) according to any of the three preceding claims, characterised in that the contact face (10) has a longitudinal extension (16) and a transverse extension (17), at least one deformation (14) extending along the longitudinal extension (16).
8. Cooking appliance (1) according to any of the preceding claims, characterised in that the frame assembly (7) is assigned, at least in portions, at least one wave trap device (18), the frame assembly (7) not comprising any wave trap device (10) on the extended contact face (10).
9. Cooking appliance (1) according to any of the preceding claims, characterised in that at least one cavity (35) adjoins the contact face (10), at least in portions, in the inside of the cooking chamber door (6).
10. Cooking appliance (1) according to any of the preceding claims, characterised in that at least the contact face (10) of the cooking chamber door (6) consists, at least in portions, of a metal sheet (19), and in particular of a Cr-Ni steel sheet (20).
11. Cooking appliance (1) according to any of the preceding claims, characterised in that at least one technical component (21) is assigned to the contact portion (11), which component in particular forms the contact portion (11) at least in portions.
12. Cooking appliance (1) according to any of the preceding claims, characterised in that at least one steam generation device (22) is assigned to the cooking chamber (3), which device is suitable and designed for supplying steam to the cooking chamber (3).
13. Cooking appliance (1) according to the preceding claim, characterised in that at least one water reservoir (23) of the steam generation device (22) is provided in the contact portion (11) of the housing assembly (3).
14. Cooking appliance (1) according to the preceding claim, characterised in that the water reservoir (23) of the steam generation device (22) forms the contact portion (10), at least in portions.

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