DE102019203637A1 - Cooking device with a water line of a steam generating device formed with non-stick material and / or a polishing surface - Google Patents

Abstract

One aspect relates to a cooking appliance (1) with a housing (2) and a cooking space (3) formed in the housing (2); can be introduced into the food for preparation, and with a steam generating device (8), with which steam can be generated, which can be introduced into the cooking space (3) for preparing the food by means of steam, the steam generating device (8) having a chamber (9) which is delimited by a base plate (10) and a hood (11), and has a water line (16) by means of which water can be introduced into the chamber (9) for evaporation and can be discharged from the chamber (9), the water line (16) is at least partially provided with a non-stick material and / or a surface of the water pipe (16) is designed as a polishing surface.

Description

One aspect of the invention relates to a cooking device with a housing and a cooking space formed in the housing into which food can be introduced for preparation. The cooking appliance has a steam generating device with which steam can be generated, which can be introduced into the cooking space for preparing the food by means of steam. The steam generating device has a chamber which is delimited by a base plate and a hood. The steam generating device also has a water line, by means of which water can be introduced into the chamber for evaporation and can be discharged from the chamber.

Steam cookers are known from the prior art. So shows DE 10 2014 217 017 A1 a steamer with an evaporator. This has a water heating chamber with a bottom. A water connection with a water passage opening is formed in the floor.

In addition, from the WO 2015/198855 A1 a steamer known. In the evaporator there, a connector for the supply of water is integrated in a cover.

In the case of such an evaporator, lime is deposited on the water line, which lime remains on the bottom as a result of the evaporation and / or which forms in a water line of the evaporator.

The object of the present invention is to create a cooking appliance in which the adherence of lime in the area of the water pipe is reduced.

This object is achieved by a cooking appliance which has the features according to claim 1.

One aspect of the invention relates to a cooking appliance with a housing and a cooking space formed in the housing. Food can be placed in this cooking space for preparation. The cooking appliance also has a steam generating device with which steam can be generated which can be introduced into the cooking space for preparing the food by means of steam. The steam generating device has a chamber which is delimited by a base plate and a hood of the steam generating device. The steam generating device also has a water line by means of which water can be introduced into the chamber for evaporation there and from which the water can be discharged from the chamber. The water pipe is provided with a non-stick material at least in some areas and / or has at least in some areas a surface which is designed as a polishing surface. Such designs with a lime-repellent material, which is the non-stick material, and / or a polished surface, which is thus a smooth or very low surface roughness, can at least significantly reduce the build-up of lime on the water pipe. Thereby, supply processes and discharge processes of water can be improved. As a result of the reduction in limescale formation that can then be achieved precisely at this specific point in the water pipe, the mode of operation of the steam generation with regard to the targeted water supply and the targeted water drainage can also be improved. It can also be used to reduce the undesired washing-in of deposited lime in the chamber.

It is advantageously provided that the water line is formed in one piece with the hood of the steam generating device. This enables a design with fewer components. In particular, this makes it possible that no such water pipe is arranged downwards and thus through the base plate. This also ensures that a hose that is still to be connected to the water pipe cannot be kinked under the floor plate, since this water pipe is no longer laid underneath the floor plate through the floor plate.

In particular, the water line is an inherently rigid pipe socket.

The hood, in particular with the integrated water pipe, is preferably made of plastic, in particular is made in one piece.

In an advantageous embodiment it is provided that the water line is designed to be angled in a defined manner. In particular, the water pipe is dimensionally stable. In particular, the water pipe is formed as a horizontal L. One of the L-legs is preferably oriented horizontally and leads away from the hood or protrudes from the hood. The second L-leg extends inside the chamber and is in particular oriented vertically downwards.

It can be provided that that limb of the L-shape which extends inside the chamber is arranged so as to be seated on an upper side of the base plate.

The water pipe thus preferably has a first pipe part which extends into the chamber, in particular is oriented vertically and is arranged above the base plate.

It is preferably provided that the water line has a first line part that extends extends into the chamber, this first line part at least partially on the outside and / or at least partially on the inside having a non-stick material and / or having a polishing surface. The advantages mentioned above are thus achieved precisely with at least this line part of the water line.

Since the base plate is heated in an advantageous manner and is heated in such a way that the water located in the chamber, which is also located on the base plate, evaporates, limescale formation is particularly likely at this point. Since it is precisely when this specific arrangement of the water pipe is in close proximity to this upper side of the base plate, the above-mentioned statements with the non-stick material and / or the polishing surface can prevent undesirable limescale deposits on this water pipe, in particular in the area of the first pipe part, be avoided.

It is preferably provided that this first line part has an end which has slots on its boundary wall. This is particularly advantageous when this first line part rests with its named end on an upper side of the base plate. The slots allow water to be introduced into the chamber through the water line radially laterally to the longitudinal axis of the line part. Suction in the radial direction into this line part is also made possible.

In particular, the slots are designed to be open towards the end, so that they are axially open.

It is preferably provided that the base plate is arranged inclined with respect to a horizontal plane. As a result, the suction of the remaining water, which is no longer required after the evaporation process and is still in the chamber, can be essentially completely diverted in a very targeted manner.

It is preferably provided that a region of the base plate on which the water line is arranged adjacent or seated on it is not heated. This also makes an advantageous contribution to the fact that limescale formation can then be reduced precisely there.

It is preferably provided that the water line is arranged in such a way that it feeds water into the chamber or discharges it from the chamber at the lowest point of the inclined base plate in the vertical direction of the cooking appliance. A very needs-based water pumping is possible.

It is advantageously provided that a boundary wall of the water line is designed to be rounded at an end extending into the chamber. Since here, in particular, corner-free transitions are formed between surfaces of the boundary wall and thus between an inner side, a front side and an outer side, the calcium build-up can be further reduced. In particular, this rounding of the transitions is also formed in the area of the slots.

The non-stick material is preferably a lime-repellent material. In this regard, a lime-repellent plastic can be provided. Nanoparticles that are lime-repellent can also be provided. The non-stick material can comprise polyoxymethylene. The non-stick material can comprise an acetal polymer.

Information such as "top", "bottom", "front", "back", "horizontal", "vertical", "depth direction", "width direction", "height direction" and the like are given when the cooking device is used and arranged as intended Positions and orientations indicated.

The features and combinations of features mentioned above in the description as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination, but also in other combinations or on their own, without the scope of the Invention to leave. There are thus also embodiments to be regarded as encompassed and disclosed by the invention, which are not explicitly shown or explained in the figures, but emerge from the explained embodiments and can be generated by separate combinations of features. Thus, designs and combinations of features that do not have all the features of an originally formulated independent claim are also to be regarded as disclosed. In addition, designs and combinations of features, in particular through the statements set out above, are to be regarded as disclosed which go beyond the combinations of features set forth in the back references of the claims or differ from them.

• 1 eine schematische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Gargeräts;
• 2 eine perspektivische Schnittdarstellung durch ein Ausführungsbeispiel einer Dampferzeugungsvorrichtung des Gargeräts gemäß 1;
• 3 eine perspektivische Schnittdarstellung eines Teilbereichs der Dampferzeugungsvorrichtung gemäß 2; und
• 4 eine perspektivische Darstellung der Darstellung der Komponenten von 3.

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

• 1 a schematic representation of an embodiment of a cooking device according to the invention;
• 2 a perspective sectional view through an embodiment of a Steam generating device of the cooking appliance according to 1 ;
• 3 a perspective sectional illustration of a portion of the steam generating device according to FIG 2 ; and
• 4th a perspective view of the representation of the components of FIG 3 .

Identical or functionally identical elements are provided with the same reference symbols in the figures.

In 1 is a schematic representation of a cooking appliance 1 shown. The cooking appliance 1 here is a steamer. The cooking appliance 1 has a housing 2 on. In the case 2 is a cooking space 3 designed, can be introduced into the food or cooked food for preparation. The cooking space 3 is through walls of a grouch 4th limited. The grouch 4th is in the case 2 arranged.

In addition, the cooking appliance 1 a door 5 to close the front of the cooking space 3 on the housing 2 is arranged movably. A shown operating and / or display device is only to be understood as an example 6th of the cooking appliance 1 . The cooking appliance 1 also has an electronic control unit 7th on what operating sequences of the cooking appliance 1 and functional components can be operated.

The cooking appliance 1 also has a steam generator 8th on. In 2 is the steam generating device 8th shown in a perspective sectional view. The steam generating device 8th or the evaporator have a chamber 9 on. In the chamber 9 the steam is generated. The steam generating device 8th has a base plate 10 on. In addition, the steam generating device 8th a separate hood 11 on. Through the base plate 10 and the hood 11 is the chamber 9 limited. In addition, the steam generating device 8th a lower part 12th on. The hood 11 and the lower part 12th together form the housing of the steam generating device 8th . The bottom plate 10 is between the hood 11 and the lower part 12th arranged. In particular, it is provided that the hood 11 a niche 13 has into which the base plate 10 protrudes laterally. Sealing elements are in particular 14th and 15th below and above the base plate 10 arranged so that the bottom plate 10 Also sealing at the edge in this niche 13 is arranged. It can also be provided that the sealing elements 14th and 15th are formed in one piece with one another and in particular have a connection area that forms the base plate 10 surrounds the edge. The edge of the base plate 10 is then received in a groove of the entire sealing element.

The bottom plate 10 is in particular heatable. It can be provided that a heating device is located directly on the base plate 10 is arranged. The heating device can be in the base plate 10 be integrated, in particular be formed internally therein.

As in 2 can be seen, the steam generating device 8th a water pipe 16 on. The water pipe 16 is particular with the hood 11 formed in one piece and thus in the hood 11 integrated. In the height direction (y-direction) of the cooking appliance 1 and in this context also the steam generating device 8th is this aqueduct 16 completely above the base plate 10 formed and arranged. In particular, this aqueduct is 16 thus also completely above the lower part 12th arranged.

The water pipe 16 is for supplying water from the outside of the steam generating device 8th into the chamber 9 educated. It is also used to drain water from the chamber 9 educated. In particular, water can thus enter the chamber 9 and on the base plate 10 are introduced and from the bottom plate 10 be discharged. In particular, this applies to the remaining water, which is no longer required during an evaporation process.

The hood 11 is preferably formed in one piece from plastic.

As can also be seen, the hood shows 11 a side wall 17th and a ceiling wall 18th on. The ceiling wall 18th is in particular designed to be uninterrupted. It therefore does not have any feed connections or the like. In particular, it is provided that the water pipe 16 in the side wall 17th is formed in one piece. The water pipe 16 has a first line part 19th on. This first part of the line 19th extends from the side wall 17th inside the chamber 9 . The first part of the line 19th is oriented vertically in the embodiment shown. It also has the aqueduct 16 a second line part 20th on. The second part of the line 20th extends in the embodiment shown here from the side wall 17th laterally outwards. In particular, this second line part extends horizontally. At a free end 21st this second line part 20th a hose can be connected via which the water to the water pipe 16 is fed.

The water pipe 16 is in particular designed to be rigid and dimensionally stable. In particular, it is made of plastic. As shown in 2 can be seen is the aqueduct 16 angled in the exemplary illustration, in particular angled by 90 °. In particular, the water pipe 16 an L-shape, the L being formed horizontally.

The water pipe 16 is at least partially provided with a non-stick material, in particular coated, and / or a surface of the water pipe 16 is at least partially designed as a polishing surface.

In particular, it is provided that the first line part 19th has a non-stick material in some areas on the outside and / or in some areas on the inside and / or has a polishing surface. A lime-repellent material is thus applied by the non-stick material, in particular as a coating.

The actual surface of the material is smoothed by the polishing surface and thus has a significantly reduced roughness. These possibilities, which can be provided alone or in combination, or at least in some areas as a non-stick material and in other areas as a polishing surface, can prevent limescale from adhering to the water pipe 16 can be significantly reduced.

As in 2 can be seen, the first line part 19th an end 22nd on which is in the chamber 9 is located. This end 22nd is a free end, which is preferably the bottom plate 10 is facing. In particular, this is the second ending 22nd on a top 23 the base plate 10 arranged sitting on. This end 22nd points in its boundary wall 24 multiple slots 25th on. This allows the water to be radial to a longitudinal axis A. this first part of the line 19th from the water pipe 16 outflow or in the radial direction the water into the water pipe 16 come in. The slots 25th are in the axial direction to one end face 26th this end 22nd openly trained.

The non-stick material and / or the formation of a polishing surface can be on an inside 27 the water pipe 16 , in particular the first line part 19th , and / or on an outside 28 the water pipe 16 , in particular the first line part 19th , be provided, and / or on the end face 26th be provided.

In an advantageous embodiment it can be provided that the boundary wall 24 at the end 22nd is rounded. This means in particular that a transition between the outside 28 and the front 26th is rounded and / or a transition between the end face 26th and the inside 27 is rounded. In addition or instead of this, the corresponding transitions in the slots 25th be rounded.

In an advantageous embodiment it is provided that the base plate 10 is arranged inclined to a horizontal. In particular, this inclination is such that in the area of the first line part 19th the deepest point of the floor slab in the vertical direction 10 is formed. In particular, it is provided that the base plate 10 is not heated at this lowest point. In particular, the bottom plate 10 in the area in which the first line part 19th is arranged, in particular on the top 23 sits on, not heated.

In 3 is a perspective sectional view of a partial representation of the steam generating device 8th in the area of the water pipe 16 shown.

In 4th is the perspective view of that part of the water pipe 16 shown as it is in 3 is shown. The multiple slots 25th that are open in the axial direction downwards can be seen.

List of reference symbols

1

Cooking appliance

2

casing

3

Cooking space

4th

Grouch

5

door

6th

Control and / or display device

7th

Control unit

8th

Steam generating device

9

chamber

10

Base plate

11

Hood

12

Lower part

13

niche

14th

Sealing element

15th

Sealing element

16

Water pipe

17th

Side wall

18th

Ceiling wall

19th

first line part

20th

second line part

21st

free end

22nd

The End

23

Top

24

Boundary wall

25th

slot

26th

Face

27

inside

28

Outside

A.

Longitudinal axis

y

Height direction

QUOTES INCLUDED IN THE DESCRIPTION

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

Patent literature cited

• DE 102014217017 A1 [0002]
• WO 2015/198855 A1 [0003]

Claims (8)

Cooking device (1) with a housing (2) and a cooking space (3) formed in the housing (2), into which food can be introduced for preparation, and with a steam generating device (8), with which steam can be generated, which in the Cooking chamber (3) for preparing the food can be introduced, the steam generating device (8) having a chamber (9) which is delimited by a base plate (10) and a hood (11) and a water pipe (16) by means of which water can be introduced into the chamber (9) for evaporation and diverted out of the chamber (9), characterized in that the water pipe (16) is at least partially provided with a non-stick material and / or a surface of the water pipe (16) is designed as a polishing surface. Cooking appliance (1) Claim 1 , characterized in that the water line (16) is formed in one piece with the hood (11). Cooking appliance (1) Claim 1 or 2 , characterized in that the water pipe (16) is angled, in particular is formed as a horizontal L. Cooking appliance (1) according to one of the preceding claims, characterized in that the water line (16) has a first line part (19) which extends into the chamber (9), this first line part (19) at least partially on the outside and / or has a non-stick material on the inside and / or has a polishing surface. Cooking appliance (1) Claim 4 , characterized in that the first line part (19) has an end (22) which has slots (25) on its boundary wall (22). Cooking appliance (1) according to one of the preceding claims, characterized in that the base plate (10) is arranged inclined. Cooking appliance (1) Claim 6 , characterized in that the water line (16) is arranged in such a way that it feeds water into the chamber (9) or from the chamber (9) at the lowest point of the inclined base plate (10) in the vertical direction (y) of the cooking appliance (1) ) discharges. Cooking appliance (1) according to one of the preceding claims, characterized in that a boundary wall (22) of the water pipe (16) is rounded at an end (22) extending into the chamber (9).

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