DE102009001094B4 - Domestic appliance for food preparation and method for operating a domestic appliance - Google Patents

Abstract

Domestic appliance for preparing foodstuffs, having a cooking chamber (3) which has on the inside receiving elements (5 to 8) which are designed to receive a preparation device and to form insertion levels (I to IV) for the preparation device, and to an optical display device ( 9) for indicating the insertion levels (I to IV), and a door (4) for closing the cooking chamber (3), characterized in that the display device (9) light sources (10 to 13), which in the laterally on a base body (2) of the domestic appliance (1) hinged door (4) are arranged.

Description

The invention relates to a domestic appliance for the preparation of food, with a cooking chamber, which on the inside has receiving elements which are designed to receive a preparation device and to form insertion levels for the preparation device. The household appliance further comprises a visual display device for displaying the shelf level and also comprises a door for closing the cooking chamber, wherein the door is struck laterally on a base body of the domestic appliance. Furthermore, the invention relates to a method for operating a domestic appliance for the preparation of food, wherein the shelf levels are visually displayed.

So is out of the DE 101 25 247 C1 a household appliance is known in which on the lateral walls of the muffle, which limits the cooking space, optical markings adjacent to the receiving media for a grill pan, a grid or a baking tray are formed. Through these receiving elements insertion levels are defined in the oven.

In addition, from the DE 10 2004 036 212 A1 a household appliance device is known, which comprises a projection unit, by means of which light can be projected onto a display means. The display means is disposed in a door of the domestic appliance with the light source positioned outside the door and the light directed into the door and reflected to the display means. You can display symbols, letters or numbers.

From the EP 0 981 027 A1 an article according to the preamble of claim 1 is shown.

In addition, from the DE 38 08 716 A1 and the EP 1 995 522 A1 It is known that light sources can be arranged in a door of a baking oven. Furthermore, the shows DE 201 03 517 U1 specific embodiments of the domestic appliance with regard to the aperture design and the door training.

Further, the FR 2 884 690 A1 Movement possibilities and opening angle of a door of a baking oven.

It is an object of the present invention to provide a domestic appliance and a method for operating a domestic appliance, in which or by means of which the display of a shelf level for a user can be improved with laterally hinged door.

This object is achieved by a domestic appliance having the features of claim 1, and a method having the features of claim 12.

A household appliance according to the invention for the preparation of food comprises a cooking chamber, which on the inside has receiving elements which are designed to receive a preparation device and to form insertion levels for the preparation device. In addition, the domestic appliance comprises a visual display device for displaying or signaling an assigned insertion level. Furthermore, the domestic appliance has a door for closing the cooking chamber, wherein the door is hinged laterally to a base body of the domestic appliance. The display unit comprises light sources which are arranged in the door. This configuration can be displayed in a reliable and secure manner a rack level, in particular by the arrangement of the light sources in the door even with relatively wide open and thus pivoted to the side door, the user can see the visual display. In addition, are selected by the attachment of the light sources in the door positions, which are subjected to much lower temperature than areas within the cooking chamber. Especially in combination of a laterally hinged door and an optical display device, which indicates to a user depending on a lighting specific light sources, which shelf level for the preparation of specific food for a preparation device is the most appropriate, this can be done very advantageous. Since it is usually the case that the door has to be opened in order to introduce a preparation device and the food into the cooking chamber, with light sources mounted on the front of the door, the optical display can no longer be seen by the user, since they almost open the door laterally shines to the rear and the user does not look at the front but at the inside of the door. This is precisely what is avoided by the invention.

The invention thus solves a large number of problems that have existed so far, and the unrestricted visibility of the light sources when the door is open by a user can also be guaranteed, as can the reliable display of the shelf level to be selected and with regard to thermal loading as well as mechanical Load improved position of the light sources is given. For just by positioning the light sources in the cooking chamber near the receiving elements, it may also lead in the prior art that when introducing the preparation device, the adjacent thereto light sources are triggered or scratched.

As receiving elements, for example support webs or insertion slots can be provided be. As a preparation device, for example, a baking sheet, a grid or a grill pan or the like may be provided.

Preferably, the light sources are arranged in the door such that their emitted light exits to or from the inside of the door. This means that their main direction of emission from the inside of the door to the outside. In this regard, it may be provided that the light sources are integrated into the door and, as it were, radiate through the inside, for example an inner pane. However, it can also be provided that in the inside of the door recesses are arranged, in which the light sources are positioned and thus quasi an emitting from the inside arrangement is formed.

Of course, it can also be provided that the light sources are arranged in the door and the emitted light is reflected by reflection means, such as mirrors and the like, towards the inside of the door and is then directed from the inside of the door to the outside.

It is therefore essential that the light emitted by the light source (s) practically exits the door at the rear or is radiated from the back, the rear side being the side of the door facing the cooking chamber in the closed state of the door.

Preferably, the light sources are adjacent and relatively close to the stop of the door. In particular, it is provided that they are arranged in a stop of the main body facing third of the door. Thereby, the display of the shelf level for a user can be displayed more comprehensible, since a close proximity in this regard is given between the light source and the associated shelf level, which is characterized by the corresponding receiving elements.

The light sources are preferably arranged one below the other when viewed in the vertical direction, and each light source is arranged at the level of the insertion level for the display of which it is intended.

Preferably, it can be provided that the display device is designed to be multifunctional. On the one hand, it is provided in this regard that the light sources for individual illumination can light up with regard to the display of the insertion level to be selected. In a further functionality it can be provided that a plurality of light sources, in particular all light sources, illuminate at least at the same time at the same time in order to enable illumination of the cooking chamber, which is especially advantageous when the door is closed.

Preferably, this at least temporarily simultaneous lighting of at least some light sources can be activated by a user in a user-defined manner. Just when the user desires it and it is advantageous for him, he can set this mode, which can be provided that this is possible by operating the control element.

The light sources of the display device are preferably light-emitting semiconductor components. In this case, light-emitting diodes, in particular laser light-emitting diodes, are particularly preferred. However, it is also possible to provide organic light-emitting diodes (OLEDs) or laser pointers.

Such light sources can be operated very energy efficient and also allow a particularly good light output with very little space.

Preferably, the domestic appliance is designed without control panel. Thus, domestic appliances are known from the prior art in which above the door control panels are arranged on the front, which have a display unit and / or controls. By this configuration, the cooking space is minimized in size and beyond the doors are also smaller to measure. In the domestic appliance according to the invention, it is preferably provided that such a control panel is no longer available and thus, if appropriate, the cooking chamber can be enlarged and the door is also made larger.

In particular, it is provided in such an unobstructed domestic appliance that the door substantially extends over the entire height of the domestic appliance. With a front view of the household appliance with the door closed, almost only the area of the front side of the door is thus visible.

In particular, it is provided that the door has a display unit and / or at least one operating element for setting operating conditions of the domestic appliance. In particular, the display unit and / or at least one operating element are thus integrated into the door itself.

It is envisaged that advantageously the door, starting from the closed state at least by an angle greater than 90 °, in particular up to an angle of 180 °, is aufschlagbar. It is thus particularly advantageous, particularly through doors which open so far and pivot laterally outwards, for the light emission to be displayed the shelf level is emitted from the inside of the door.

In a method according to the invention for operating a domestic appliance for preparing food, which comprises a cooking chamber which has on the inside receiving elements which are designed to receive a preparation device and to form insertion levels for the preparation device, and has a display device with light sources for indicating a rack level, and a door for closing the cooking chamber, which is struck laterally on a base body of the domestic appliance, the light of the associated light source is emitted from the inside or the door of the door to indicate a rack level.

In particular, it is provided that for illuminating the cooking chamber several, in particular all, light sources can be activated at least temporarily simultaneously to the light emission.

Advantageous embodiments of the domestic appliance according to the invention are to be regarded as advantageous embodiments of the method according to the invention.

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 and the following features and feature combinations mentioned in the description of the figures and / or shown alone in the figures can be used not only in the respectively indicated combination but also in other combinations or in isolation, without the scope of To leave invention.

An embodiment of the invention will be explained in more detail with reference to a schematic drawing.

The single figure shows a schematic perspective view of an embodiment of a household appliance according to the invention for the preparation of food. The household appliance 1 can be designed as an oven or Dampfgargerät.

In principle, any domestic appliance for preparing foodstuffs can be provided in this respect, which has a cooking chamber with insertion levels, wherein the cooking space can be closed by the front door.

The household appliance 1 includes a main body 2 in which a muffle not marked in detail is arranged, which is a cooking chamber 3 limited. The muffle is open at the front and the cooking chamber 3 is in this front through a door 4 closable. The door 4 is on the body 2 struck laterally, which means that it can be pivoted laterally outwards about the vertical axis (y-direction), as shown by the arrows P. The stop 15 is shown.

The household appliance 1 is designed without control panel on the front and the door 4 extends with respect to their height (y-direction) substantially over the entire height of the body 2 , An unillustrated display and / or controls are in the door 4 arranged and can, for example, in particular on the front of the door 4 to be served. The front of the door 4 is in the closed state of the door 4 the one which faces an observer or the cooking chamber 3 turned away.

On the inside of the muffle are receiving webs 5 . 6 . 7 and 8th formed as receiving elements, which are arranged one below the other and which have analogous configurations on the opposite vertical wall side of the muffle. Thus, the support webs located at the same height each form pairs of support possibilities for a preparation device in the form of a grill pan, a grid or a baking tray. Through the pairwise opposite and associated receiving elements insertion levels are defined, which in the exemplary embodiment four insertion levels I . II . III and IV represent.

The door 4 has an optical display device 9 on, which in the exemplary embodiment four light sources 10 . 11 . 12 and 13 includes. The light sources 10 to 13 In the exemplary embodiment, light-emitting semiconductor components which are arranged one below the other are viewed in the vertical direction. In terms of positioning in the door 4 are the light sources 10 to 13 positioned in height so that they are at the level of the shelf level I to IV are positioned. This is how the light source works 10 for signaling or display of the first rack level I , the light source 11 for signaling the second rack level II , the light source 12 for signaling the third rack level III and the light source 13 for signaling the fourth rack level IV , This means that by lighting one of these light sources 10 to 13 the user is signaled which rack level I to IV is the most suitable for the preparation of a food, and at which rack level I to IV the user should thus introduce his preparation device.

In the exemplary embodiment shown, for example, the second light source is illuminated 11 and thus indicates to the user that he is preparing his preparation at the level of the second shelf level II paste in order to enable the best possible preparation of the specific food.

The light sources 10 to 13 are so in the door 4 arranged that their main direction of emission from or from an inside 14 the door 4 he follows. The inside 14 is the one side, which when the door is closed 4 the cooking space 3 is facing.

Especially with those doors, which are aufschlagbar side, can thus also with the door open 4 the user clearly and easily viewable display which shelf level I to IV the most suitable one is. In the embodiment, it is provided that the door 4 starting from the closed state over an angle of at least 90 °, in particular up to an angle of 180 ° is aufschlagbar.

The display device 9 Moreover, it is also designed so that, in particular when the door is closed 4 several light sources 10 to 13 , in particular all light sources 10 to 13 , at least temporarily light up at the same time to the cooking space 3 to be able to illuminate. This functionality can be activated in particular by a manual actuation of a control element by a user.

It can also be provided that the light sources 10 to 13 each designed to produce a single same color of light. It can also be provided that at least one of the light sources 10 to 13 is designed to generate light of different light color. In particular, multi-color LEDs can be provided in this regard. Likewise, it can be provided that at least two light sources 10 to 13 are formed for generating light of different light color, wherein the one light source for generating light having a first light color and the second light source for generating light having a second light color is formed.

Claims (13)

Household appliance for food preparation, with a cooking chamber ( 3 ), which on the inside receiving elements ( 5 to 8th ), which for receiving a preparation device and for the formation of insertion levels ( I to IV ) are formed for the preparation device, and with an optical display device ( 9 ) for displaying the insertion levels ( I to IV ), and a door ( 4 ) for closing the cooking chamber ( 3 ), characterized in that the display device ( 9 ) Light sources ( 10 to 13 ), which in the laterally on a base body ( 2 ) of the household appliance ( 1 ) battered door ( 4 ) are arranged. Domestic appliance according to claim 1, characterized in that the light sources ( 10 to 13 ) so in the door ( 4 ) are arranged so that their emitted light from or from the inside ( 14 ) the door ( 4 ) steps outside. Domestic appliance according to claim 1 or 2, characterized in that the light sources ( 10 to 13 ) in a stop ( 15 ) to the main body ( 2 ) facing third of the door ( 4 ) are arranged. Domestic appliance according to one of the preceding claims, characterized in that the light sources ( 10 to 13 ) are arranged one below the other and each light source ( 10 to 13 ) at the level of the shelf level ( I to IV ) is arranged, to whose display it is provided. Domestic appliance according to one of the preceding claims, characterized in that a plurality of light sources ( 10 to 13 ), in particular all, at least at the same time for illuminating the cooking chamber ( 3 ) are operable. Domestic appliance according to claim 5, characterized in that the simultaneous illumination of at least some light sources ( 10 to 13 ) can be activated by a user. Domestic appliance according to one of the preceding claims, characterized in that the light source ( 10 to 13 ) is a light-emitting semiconductor device. Domestic appliance according to one of the preceding claims, characterized in that it without one on the base body ( 2 ) arranged control panel is formed. Domestic appliance according to one of the preceding claims, characterized in that the door ( 4 ) substantially over the entire height of the household appliance ( 1 ). Domestic appliance according to one of the preceding claims, characterized in that the door ( 4 ) a display and / or at least one operating element for setting operating conditions of the domestic appliance ( 1 ) having. Domestic appliance according to one of the preceding claims, characterized in that the door ( 4 ) is aufschlagbar starting from the closed state at least by an angle greater than 90 °, in particular up to an angle of 180 °. Method for operating a domestic appliance ( 1 ) for the preparation of food, which has a cooking chamber ( 3 ), the inside receiving elements ( 5 to 8th ), which for receiving a preparation device and the formation of insertion levels ( I to IV ) are designed for the preparation device, and a display device ( 9 ) with light sources ( 10 to 13 ) for displaying the insertion levels ( I to IV ), and a door ( 4 ) for closing the cooking chamber ( 3 ), characterized in that for displaying the rack level ( I to IV ) the light of the associated light source ( 10 to 13 ) from or inside ( 14 ) the door ( 4 ) from the side of a base body ( 2 ) of the household appliance ( 1 ) battered door ( 4 ) is radiated. A method according to claim 12, characterized in that for illuminating the cooking chamber ( 3 ) several, in particular all, light sources ( 10 to 13 ) at least temporarily emit light simultaneously.

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