EP2592354B1 - Cooking device with a door that can be stowed into the housing of the cooking device - Google Patents

Description

The invention relates to a cooking appliance with a cooking chamber and a cooking chamber closing the door, which is retractable into a housing of the cooking appliance and an outer door panel, a door inner pane and an intermediate door disc arranged therebetween, wherein the discs are connected to arranged on the door outer panel door profiles.

Baking ovens are known from the prior art, which have a door for closing a cooking chamber. Such doors usually have a handle on the front side, which can be gripped by a user in order to pivot the door can. In order to make the accessibility of the door in fully open position user-friendly, such handles can be pivoted relative to the plate-like base, in particular a door outer pane, so that they can be easily grasped even in this open position of the door. Since such retractable or retractable doors are very specific and individual and thus have differences to normal flap doors, it is not possible for ovens, which also have a pyrolysis function, to use such retractable doors.

Since such retractable doors are typically smaller in width and height than the flap doors and are located almost entirely with the door profiles in the hot zone of the oven opening, they would be subjected to elevated temperatures during pyrolysis operation, which would result in damage to components of that landing door.

The DE 20 2008 013 147 U1 discloses an oven door for a cooking chamber of a baking oven, preferably with a device for pyrolytic self-cleaning.

The DE 10 2008 010 500 A1 discloses a home appliance device.

The JP 58 179733 A discloses a heat cooker.

The EP 2 336 644 A1 discloses a lighting system for a household stove.

The FR 1 299 303 A discloses improvements to doors for home baking ovens.

It is an object of the present invention to provide a cooking appliance with a retractable door, in which an undesirable temperature loading of the door, in particular of specific components thereof, can be avoided.

This object is achieved by a cooking appliance having the features of claim 1.

An inventive cooking appliance comprises a cooking chamber and a door closing the cooking chamber, which can be lowered into a housing of the cooking appliance. The door comprises an outer door panel, a door inner panel and at least one intermediate door panel interposed therebetween. The discs are connected to door profiles which are arranged on the door outer pane. In a space between the door inner pane and a door intermediate disc arranged adjacent thereto, at least a first heat protection and heat reflection element is arranged. This heat protection and heat reflection element is arranged to protect a heat transfer from the intermediate space to a door profile on the one hand and for heat reflection in the cooking chamber on the other hand. In addition or instead, the door comprises at least one further heat protection element for protecting a heat transfer to a handle of the door. By virtue of such a specific component design of the door, temperature-sensitive components of such a countersunk door can be protected against undesired temperature exposure. By virtue of the fact that a heat-protection and heat-reflecting element also has a further function, namely the heat reflection in the cooking chamber, multifunctional components are also provided by the elements. Not only the protection of specific components of such retractable door from undesirable temperature exposure is achieved, but also given a very energy-efficient operation by the heat reflection in the cooking chamber.

It is envisaged that the heat-protection and heat-reflecting element on the side facing the door profile and / or a door profile on the side facing the first heat-protection and heat-reflecting element has an uneven, in particular dimpled, surface. This heat shield and heat reflective element and the door profile are adjacent to each other at least over the one nubbed surface. By such a configuration, a very surface-minimized direct contact between the heat protection and heat reflection element and the door profile is achieved. Thereby, heat transfer from the heat shield and heat reflective element to the door profile can be minimized. In particular, air chambers are formed by this structuring between the heat protection and heat reflection element and the door profile, so that heat transfer is prevented to some extent here as well.

It is envisaged that the cooking appliance is an oven, which is designed with a pyrolysis function. Especially in such a device occur during the pyrolysis very high temperatures, which lead to retractable doors, as already described at the beginning, to unwanted Temperaturbeaufschlagungen of components, in particular door profiles and a handle. As a result of the embodiment of the invention, an oven with a pyrolysis operation and a retractable door can now also be provided in which the occurrence of undesirably high temperatures on a handle and / or door profiles is prevented.

It is preferably provided that the thermal insulation and heat reflection element is formed angled in a horizontal cross-section. Due to the shape specification, the multifunctions of this element can be improved achieved and also a mechanically stable attachment can be made possible.

It is preferably provided that the heat protection and heat reflection element is bent or formed in a Z-shaped manner.

It is particularly advantageous that the heat protection and heat reflection element has a parallel to the door inner panel oriented leg and / or oriented parallel to the door inner pane second leg, wherein the first leg of the door washer is adjacent and facing arranged and the second leg of the door inner pane adjacent and is arranged facing. This results in specific investment options, so that a position-safe arrangement can be formed, which is also achieved mechanically stable and durable holding.

It is preferably provided that a surface of the door inner panel facing the door intermediate disk and / or the area of the door intermediate disk provided for contacting with the first leg are uneven, in particular studded, or are formed. Additionally or instead, it may be provided that a surface of the inner door surface facing the inner door pane of the door and / or the surface area of the inner door pane provided for contacting with the second leg is uneven, in particular studded, or is formed. Even by such embodiments point and thus surface minimized direct contact between the discs and the legs can be achieved, so that an undesirable high temperature loading between the individual components is avoided here.

It is preferably provided that the heat-protection and heat-reflecting element has a third leg extending obliquely from the door inner pane to the door intermediate pane. By this configuration, on the one hand, the door profile over the entire distance between the door inner pane and the door washer by this third leg quasi hidden and unwanted direct temperature of the door profile can be prevented. In addition, it is given by this inclination in a particularly advantageous manner, a suitable heat reflection in the cooking chamber.

It is preferably provided that the first heat protection and heat reflection element is attached to a door profile nondestructive releasably, in particular clipped or clamped. By such a configuration, on the one hand, a mechanically reliable and positionally stable attachment between the door profile and the first element is achieved. On the other hand, it can be removed and replaced at any time for assembly or cleaning purposes.

The heat-shielding and heat-reflecting element is preferably elongated and formed over the entire height of the door intermediate pane and / or the inner door pane. This prevents the heat transfer to the door profile particularly well.

It is preferably provided that the second heat protection and heat reflection element is formed integrally on the handle. As a result, a very compact and positionally secure attachment can be achieved.

It is preferably provided that the further heat protection element in the contacting region with the handle and / or the handle in the contacting region with the further heat protection element is uneven, in particular studded, or is formed. Again, the advantages already mentioned above with regard to a minimum temperature transfer between the two components can be realized.

It is preferably provided that the heat protection and heat reflection element and the heat protection element are integrally formed. As a result, on the one hand, the number of components can be reduced and, on the other hand, undesirable positional tolerances between the two elements can be avoided. Not least can be created by such a one-piece design, an interruption-free structure, so that no hole or passage is formed through which undesirable heat in the direction of the handle and / or a door profile can pass.

It is preferably provided that a peripheral frame is formed by first and second heat protection and heat reflection elements. The above advantages are particularly in the foreground.

In particular, it is provided that the two door profiles are made of plastic. As a result, they can be designed very weight-saving and cost-minimized. Especially with such material-specified door profiles, it is of particular advantage that they are protected from undesirable temperature exposure.

By the door profiles are formed of plastic, a certain avoidance of a temperature transfer from the inner door panel to the door outer panel on the door profiles is prevented. The first heat-shielding and heat-reflecting elements are in particular arranged vertically and positioned parallel to the door profiles. The second heat protection elements, which may also be heat protection and heat reflection elements, are oriented in particular horizontally.

As already mentioned, the first heat protection and heat reflection elements gain their hold by clamping or clipping on the door profiles or by a small fold with which they rest against the door washer.

Especially with such retractable doors with a pivoting handle this is because of the construction of such a door in the so-called hot area of the oven flange. For this purpose, it is particularly advantageous to protect such a handle.

The second thermal protection elements associated with the handle adapts to the contour of the pivoting handle. In particular, here is a cavity between the handle and the element incorporated constructively to prevent direct heat transfer. Again, it is preferably provided that this second element is secured by clips and / or clamps accordingly.

Preferably, a first and / or a second heat protection and heat reflection element are designed as sheet metal parts.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations shown only in the figures and / or only in the description of the figures can be used not only in the respectively indicated combination but also in other combinations or alone, without the frame to leave the invention.

Fig. 1

eine perspektivische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Gargeräts;

Fig. 2

eine perspektivische Darstellung der Tür des Gargeräts gemäß Fig. 1;

Fig. 3

einen Teilbereich eines Horizontal-Querschnitts der Tür gemäß Fig. 2;

Fig. 4

eine perspektivische Darstellung des oberen Bereichs der Tür gemäß Fig. 2;

Fig. 5

eine Längsschnittdarstellung von Fig. 4.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Fig. 1

a perspective view of an embodiment of a cooking appliance according to the invention;

Fig. 2

a perspective view of the door of the cooking appliance according to Fig. 1 ;

Fig. 3

a portion of a horizontal cross section of the door according to Fig. 2 ;

Fig. 4

a perspective view of the upper portion of the door according to Fig. 2 ;

Fig. 5

a longitudinal sectional view of Fig. 4 ,

In the figures, their functionally identical elements are provided with the same reference numerals.

In Fig. 1 is shown in a perspective view of a trained as a baking oven 1 household appliance for preparing food as a cooking appliance. The oven 1 comprises a cooking chamber 2 which is bounded by walls of a muffle 3. On the front side, the muffle 3 has a charging opening, which can be closed by a door 4. The door 4 is not designed as a hinged door but as a retractable door. This means that they are in the in Fig. 1 shown fully open position is inserted into a housing 5 in a lower region or shaft 6. The door 4 comprises a handle 7, which is designed as a pivoting handle. This means that he is relative to the door 4, especially one in Fig. 1 Not shown outside door panel 4 of the door is pivotable. By such a configuration can also in the in Fig. 1 shown completely open position of the door handle 7 are easily gripped on the front by a user and the door 4 are pulled out of the shaft 6 again and then closed.

Only by way of example is shown in position and number that the oven 1 also cooking zones 8, 9, 10 and 11 has. Also in position and number by way of example only, an operating device 12 of the oven 1 is provided, which has a display 13 and controls 14 and 15.

The oven 1 is also designed to carry out a pyrolysis operation.

In Fig. 2 is a perspective view of the door 4 is shown, in which case a door outer panel 16 is shown. On an inner side 17, which faces the cooking chamber 2 with the door 4 closed, elongate door profiles 18 and 19 extending parallel to one another are arranged. The door profiles 18 and 19 are in the embodiment of plastic.

In addition, in the exemplary embodiment, two door intermediate disks 20 and 21 are arranged on the door profiles 18 and 19, which are spaced from each other and spaced from the door outer panel 16 and extend parallel to one another.

The door 4 also includes an in Fig. 2 door inner pane 22 (not shown) Fig. 3 ). Also, this is connected to the door profiles 18 and 19 and represents the cooking chamber 2 nearest disc with the door 4 closed.

The door 4 further includes two vertical first heat shield and heat reflective elements 23 and 24 which are respectively disposed adjacent to the door profiles 18 and 19 and constitute elongate members. The first heat-shielding and heat-reflecting elements 23 and 24 are one-piece sheet metal parts.

In addition, the door 4 further comprises at least designed as heat protection elements components which are in the embodiment second heat protection and heat reflection elements 25 and 26 which are oriented horizontally and are arranged in the upper region of the door 4.

With the first heat protection and heat reflection elements 23 and 24, the door profiles 18 and 19 are protected from undesirable temperature exposure. They serve to heat the heat that occurs between the second door intermediate disc 21 and the inner door panel 22, not to the door profiles 18 and 19 reach circumferentially and unhindered. In addition, by these first heat protection and heat reflection elements 23 and 24 in this gap 27 ( Fig. 3 ) formed heat at least partially reflected back into the cooking chamber 2. In pyrolysis operation, the door profiles 18 and 19 and the handle 7 are thus protected from undesired temperature exposure. The handle 7 is thereby protected by the second heat protection and heat reflection elements 25 and 26. The second heat protection and heat reflection elements can also be designed only for heat protection, so that the functionality of a heat reflection back into the cooking chamber 2 need not be given.

In Fig. 3 is a horizontal cross-sectional view along the section line III-III in Fig. 2 shown. The first heat-shielding and heat-reflecting element 24 connected to the door profile 19 and disposed adjacent thereto is shown. This comprises a in this horizontal cross-section Z-shaped angled structure. This first element 24 includes a first leg 28 which extends parallel to the door intermediate disc 21 and rests against this. One facing the door washer and on this lying surface 29 of this first leg 28 is uneven, in particular evenly knobbed formed, so that here only a surface-minimized punctual support of this leg 28 is given on the door washer 21.

In addition, this first element 24 includes a second leg 30 which extends adjacent and parallel to the inner door panel 22 and is contacted with this. Again, it is provided that a surface 31 which is contacted with the inner door panel 22, uneven, is in particular genoppt, so that here is only a surface minimized point support is given.

Between the first leg 28 and the second leg 30, a third leg 32 is formed, which is arranged obliquely.

As from the illustration in Fig. 3 can be seen, the entire space 27 is covered by the first element 24, so that no unwanted heat transfer from the gap 27 can reach the door profile 19. Due to the specific inclination of the third leg 32 can also be at least partially back reflection of the heat in the cooking chamber 2.

In addition, it is provided that the second leg 30 is also surface minimized and only selectively connected to the door profile 19. Here, too, it can be provided that a surface 33 of the second leg 30 facing the door profile 19 and / or the side of the door profile 19 connected to the second leg 30 are at least partially uneven, in particular correspondingly structured, preferably studded. As a result, shown by way of example cavities 34 and 35 are designed. This also creates certain air spaces through which an undesirably high heat transfer from the first element 24 to the door profile 19 is prevented.

In Fig. 4 is shown in a perspective view of the door 4 in the upper area. The pivoting handle 7 is shown here. The second elements 25 and 26 are enlarged dargstellt. They are also like the first elements 23 and 24 one-piece sheet metal parts.

In Fig. 5 is a longitudinal sectional view of Fig. 4 respectively Fig. 2 (shown along section line VV). It can be seen that the second element 26 in the handle 7 is integrated. Again, it is provided that no full-surface contact is formed, but at least one cavity, in particular a plurality of cavities 36 between the handle system and the second element 26 is formed. The shape of the second element 26 is adapted to the shape of the component of the handle 7.

LIST OF REFERENCE NUMBERS

1

oven

2

oven

3

muffle

4

door

5

casing

6

shaft

7

Handle

8, 9, 10, 11

cooking zones

12

operating device

13

display

14, 15

controls

16

Door outer pane

17

inside

18, 19

door profiles

20.21

Door washers

22

Door inner pane

23, 24

Heat protection and heat reflection elements

25, 26

Thermal protection elements

27

gap

28

leg

29

surface

30

leg

31

surface

32

leg

33

surface

34, 35, 36

cavities

Claims (14)

1. Cooking device (1) with a cooking chamber (2) and a door (4) closing the cooking chamber (2), which door (4) can be stowed into a housing (5) of the cooking device (1) and has a door outer panel (16), a door inner panel (22) and at least one door intermediate panel (20, 21) arranged therebetween, wherein the panels (16, 20 to 22) are connected to door profiles (18, 19) arranged on the door outer panel (16), characterised in that the cooking device (1) is a baking oven (1) with a pyrolysis function, and that arranged in an intermediate space (27) between the door inner panel (22) and a door intermediate panel (21) arranged adjacent thereto there is at least one first heat protection and heat reflection element (23, 24) for protecting a transmission of heat from the intermediate space (27) to a door profile (18, 19) and for reflection of heat into the cooking chamber (2), wherein the first heat protection and heat reflection element (23, 24), on the side facing towards the door profile (18, 19), and/or a door profile (18, 19), on the side facing towards the first heat protection and heat reflection element (23, 24), has an uneven, in particular notched, surface and the first heat protection and heat reflection element (23, 24) and the door profile (18, 19) abut one another via the at least one surface.
2. Cooking device (1) according to claim 1, characterised in that the first heat protection and heat reflection element (23, 24) is embodied at an angle in the horizontal cross-section.
3. Cooking device (1) according to claim 2, characterised in that the first heat protection and heat reflection element (23, 24) is angled in a Z-shape.
4. Cooking device (1) according to claim 2 or 3, characterised in that the first heat protection and heat reflection element (23, 24) has a first leg (28) oriented in parallel to the door intermediate panel (20, 21) and/or a second leg (30) oriented in parallel to the door inner panel (22).
5. Cooking device (1) according to claim 4, characterised in that a surface (29) of the first leg (28) facing towards the door intermediate panel (20, 21) and/or the surface area of the door intermediate panel (20, 21) provided for making contact with the first leg (28) is or are embodied in an uneven, in particular notched, manner, and/or a surface (31) of the second leg (30) facing towards the door inner panel (22) and/or the surface area of the door inner panel (22) provided for making contact with the second leg (30) is or are embodied in an uneven, in particular notched, manner.
6. Cooking device (1) according to one of claims 2 to 5, characterised in that the first heat protection and heat reflection element (23, 24) has a third leg (32) running diagonally from the door inner panel (22) to the door intermediate panel (20, 21).
7. Cooking device (1) according to one of the preceding claims, characterised in that the first heat protection and heat reflection element (23, 24) is fastened to a door profile (18, 19) in such a manner that it can be released non-destructively, in particular is clipped or clamped thereto.
8. Cooking device (1) according to one of the preceding claims, characterised in that the first heat protection and heat reflection element (23, 24) is embodied in an elongated manner and at least above the height of the door intermediate panel (20, 21) and/or the door inner panel (22).
9. Cooking device according to one of the preceding claims, characterised in that at least one further heat protection element (25, 26), which is embodied at least for protecting a transmission of heat to a handle (7) of the door (4), is arranged.
10. Cooking device (1) according to claim 9, characterised in that the at least one second heat protection element (25, 26) is integrated on the handle (7).
11. Cooking device (1) according to claim 9 or 10, characterised in that the second heat protection element (25, 26), in the contact region with the handle (7), and/or the handle (7), in the contact region with the second heat protection element (25, 26), is embodied in an uneven, in particular notched, manner.
12. Cooking device (1) according to one of claims 9 to 11, characterised in that one of the first heat protection and heat reflection elements (23, 24) and one of the second heat protection elements (25, 26) are embodied in one piece.
13. Cooking device (1) according to one of claims 9 to 12, characterised in that first heat protection and heat reflection elements (23, 24) and second heat protection elements (25, 26) embody a frame.
14. Cooking device (1) according to one of the preceding claims, characterised in that the door profiles (18, 19) are embodied as made of plastic.

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