EP3438553A1 - Cooking device and method - Google Patents

Abstract

The present invention relates to a cooking device (1) for installation in a receiving space (200) of a furniture body (201), comprising a heated and by a cooking chamber door (101) closable cooking chamber (11) and an outlet device (2) for discharging air from the Cooking chamber (11) in the vicinity of the cooking appliance (1) during a cooking process. In this case, the outlet device (2) opens into the receiving space (200) of the furniture body (201) and / or on a rear side (300) of the cooking appliance (1). The outlet device (2) is fluidly connected to a treatment device (3) with a dryer unit (4) for drying the air from the cooking chamber (11) to precipitate moisture in the receiving space (200) of the furniture body (201) or in the Environment of the cooking appliance (1) to avoid.

Description

The present invention relates to a cooking appliance and to a method for operating a cooking appliance with at least one heatable cooking space that can be closed by at least one cooking chamber door. The cooking appliance comprises at least one outlet device for removing air from the cooking chamber into the environment of the cooking appliance during a cooking process.

In the case of an oven, during the cooking process, usually a vaporizing or cooking steam is formed which has not inconsiderable amounts of moisture, fat and odorous substances. As a rule, the vapor is removed from the cooking chamber in order to avoid a too humid atmosphere in the cooking chamber. Some cooking appliances have catalysts to reduce fats and odors in the vapors.

In the prior art, the vapor is blown forward from the cooking appliance into the kitchen space. This achieves good mixing with the ambient air, effectively preventing local dirt and moisture deposits as well as condensation on cold components and walls. However, the blowing out of warm and moist and often fatty and odor-intensive air is often perceived as very unpleasant and disturbing. The blow-out process thus leads to acoustic, thermal and particle flow emissions.

It is therefore an object of the present invention to provide by reducing the emissions a particularly user-friendly and comfortable way to remove the Wrasens or the air from the oven.

This object is achieved by a cooking appliance with the features of claim 1 and by a method the features of claim 15. Preferred features are the subject of the dependent claims. Further advantages and features will become apparent from the general description of the invention and the description of the embodiments.

The cooking appliance according to the invention is suitable and designed for installation in a receiving space of a furniture body. The cooking appliance comprises at least one heatable cooking chamber that can be closed by at least one cooking chamber door. The cooking appliance comprises at least one outlet device for discharging air from the cooking chamber into the surroundings of the cooking appliance during a cooking process. The outlet device opens into the receiving space of the Furniture body and / or on a rear side of the cooking appliance. The furniture body can be closed to the rear or open. The outlet device is flow-connected to at least one treatment device with at least one dryer unit for drying the air from the cooking chamber to prevent precipitation of moisture in the receiving space of the furniture body or in the vicinity of the cooking appliance or in the environment behind the furniture body.

The cooking appliance according to the invention offers many advantages. A considerable advantage is that the air or the vapors are not blown out through the mouth of the outlet device according to the invention. This is very user-friendly, because no air flow, no heat and no flow noises are perceived. For example, the user does not come in contact with the blown cooking chamber when opening the oven door or a control look in the oven. A particular advantage of the invention is also that the discharged air is previously dried. As a result, condensation does not occur in the region of the outlet of the outlet device or in the vicinity of the cooking appliance. The moisture could otherwise precipitate in the receiving space or on the furniture body or on the walls. The cooking appliance according to the invention is thus particularly comfortable, since no disturbing increase in the room air humidity occurs even with prolonged cooking operations.

Particularly preferably, the outlet device opens into the receiving space of the furniture body, when the cooking appliance is operationally installed in the receiving space. In particular, the outlet device opens at a portion of the cooking appliance, which is arranged in an operationally installed state within the furniture body or in the receiving space of the furniture body. The receiving space may be designed to be open in sections. For example, the receiving space may be open on one side if the furniture body has no rear wall or only a partial rear wall.

The outlet device can open on an upper side and / or on a lower side and / or on at least one side surface of the cooking appliance connecting the rear side to a front side. The upper side, the lower side, the rear side and / or the side surface are arranged in an operationally installed state of the cooking appliance, in particular in the receiving space of the furniture body. This offers the advantage that the outlet device can open into the receiving space. In particular, the outlet device opens outside a front side of the cooking appliance.

But it is also possible that the outlet device opens on a front side of the cooking appliance. In such an embodiment, the front side is preferably at least partially in arranged in the receiving space of the furniture body. For example, the front side may at least partially be covered by a furniture front and / or a furniture door of the furniture body. The outlet then preferably opens behind the furniture front or the furniture door. Preferably, the outlet device opens outside of a portion of the front of the cooking appliance, which is accessible to the user in an operationally installed state.

Particularly preferably, the outlet device is suitable and designed to blow the dried air in a direction which is directed away from a front side of the cooking appliance. In particular, the dried air is blown away from a front side of the cooking appliance with the outlet device. Such a configuration is particularly user-friendly and offers a flexible constructive positioning of the mouth of the outlet. In particular, the outlet device is suitable and designed to blow the dried air into the receiving space of the furniture body. The outlet means may also be adapted and adapted to blow the dried air to the back, top, bottom and / or at least one side surface.

The outlet means may comprise at least one directional blowing nozzle. For example, a nozzle has the advantage that the outlet device can also open in the vicinity of a front side without the user perceiving the flow of air. The outlet device may comprise at least one fan device.

Preferably, the dryer unit comprises at least one heat exchanger for the air from the cooking chamber. The heat exchanger can be cooled in particular by at least one cooling air flow generated by means of at least one blower device. The heat exchanger is designed in particular as an air-air heat exchanger. Such a dryer can be implemented particularly economically and provides reliable air drying. The heat exchanger can also be designed as a liquid-cooled air heat exchanger. It is also possible that the heat exchanger is coupled to a heat pump device.

The heat exchanger is connected in particular via at least one flow channel with the cooking chamber. In particular, the heat exchanger comprises at least one air inlet for the air from the cooking chamber and / or at least one air outlet for the dried air. The air outlet of the heat exchanger is in particular flow-connected to the outlet device. The heat exchanger can be arranged upstream of and / or behind a blower device in the flow direction of the cooling air.

The heat exchanger is preferably operated in countercurrent principle. In particular, the heat exchanger has at least one labyrinthine flow channel for the air to be dried on. The heat exchanger may also comprise at least one surface structure for selectively increasing a surface area to volume ratio. For example, the surface structure comprises at least one cooling fin or the like. The heat exchanger is designed in particular as a flat channel and, for example, as a rectangular channel.

The blower device for generating the cooling air flow may comprise at least one radial blower and preferably a double-flow or multi-flow radial blower. The fan means may comprise at least one cross-flow fan. The blower device may also comprise other types of blowers, for example an axial blower. The blower device is in particular suitable and designed to suck and / or blow the air out of the cooking chamber and / or to suck and / or blow the dried air. It is also possible that in each case at least one blower device is provided for sucking and blowing.

In an advantageous embodiment, the cooling air flow for the heat exchanger flows via at least one electronic component of the cooking appliance for cooling thereof. Thus, space and components, for example, blower devices, can be saved. In particular, the heat exchanger and the electronic component are connected to a flow path for the cooling air flow. In particular, the blower device is provided for generating the cooling air flow for the heat exchanger by at least one already existing blower device. The already existing blower device is used in particular for device cooling and preferably for cooling at least one electronic component of the cooking appliance. It can be provided for generating the cooling air flow for the heat exchanger and for conveying the cooling air for cooling the electronic component in each case at least one fan device. The electronic component comprises, for example, at least one control device and / or power electronics.

In a likewise advantageous embodiment, the heat exchanger is arranged in the flow direction of the cooling air in front of the electronic component. This has the advantage that cooler air or not already preheated by the electronic component air is available for the heat exchanger.

In another advantageous embodiment, the heat exchanger is arranged in a common intake space with the electronic component. In this case, a suction space is understood to mean, in particular, a space which is arranged inside the cooking appliance and in which air is sucked in from the environment of the cooking appliance by means of at least one blower device. Such a configuration has the advantage that by the suction of Cooling air into the suction an inexpensive and reliable cooling of both the heat exchanger and the electronic component is possible.

It is possible that the heat exchanger is arranged in the flow direction of the cooling air behind the electronic component. Particularly preferably, the heat exchanger is arranged in a cooling air duct, through which the cooling air is sucked and / or blown after flowing past the electronic component. As a result, the heat exchanger can be cooled particularly effectively and at the same time structurally uncomplicated. The cooling air duct is preferably flow-connected to the outlet device, so that the air can be discharged from the cooking appliance via the cooling air duct. The cooling air channel is designed in particular as a thermal separation between the cooking chamber and the electronic component. For example, the cooling air duct extends below the electronic component and above the cooking chamber. It is possible that at least one insulating device for thermal insulation of the cooking chamber is arranged between the cooling air duct and cooking chamber.

The cooling air flow for the heat exchanger preferably flows into the cooking appliance via at least one suction opening. It is possible that additional cooling air for cooling the electronic component flows into the cooking appliance via at least one additional suction opening. The further intake opening and the additional cooling air ensure particularly good cooling of the electronic component. The additional cooling air is in particular not passed by the heat exchanger, but led directly to the electronic component. The further suction opening is arranged in particular such that the sucked air flows directly to the electronic component without passing through the heat exchanger. It is possible that the suction opening for the cooling air flow for the heat exchanger also serves for sucking at least a part of the cooling air for cooling the electronic component.

The additional cooling air can be sucked in particular by means of at least one blower device. Preferably, the additional cooling air can be sucked by means of the blower device with which the cooling air flow for the heat exchanger is also generated. The suction opening and / or the further suction opening are preferably flow-connected to the common suction space. The suction opening and / or the further suction opening may also be flow-connected to the cooling air duct.

Particularly preferably, the dried air before being discharged from the outlet device is miscible with the cooling air flow for the heat exchanger and / or with the additional cooling air. As a result, a particularly low moisture content of the discharged air can be achieved.

It is also possible that the dried air before being discharged from the outlet device with the cooling air for cooling the electronic component is miscible. It is possible that the dried air before being discharged from the cooking appliance is miscible with the cooling air flow for the heat exchanger and / or with the additional cooling air within the common suction space. In particular, the dried air flows before it is discharged from the outlet device into the common intake space. In particular, the treatment device is suitable and designed to mix the dried air with the cooling air flow by means of at least one mixing unit.

Such a configuration is particularly advantageous if the cooling air flow or the cooling air have a multiple of the volume of the dried air. For example, the cooling air flow and / or the cooling air have a volume flow of 1700 l / min. From the oven z. B. 20 I / min and dried. As a result, a good mixing ratio and thus particularly dry air can be achieved. Furthermore, such a ratio is particularly advantageous for effective cooling. In addition, only slightly heated air is removed from the cooking chamber. In particular, the dryer unit discharges the dried air into a flow channel through which the cooling air flow for the heat exchanger is also conducted. For example, the dryer unit discharges the dried air into the common intake space and / or into the cooling air duct. In particular, the mixing takes place substantially before the flow of cooling air past the heat exchanger. However, it is also possible and preferred for the mixing to take place essentially after the flow of cooling air past the heat exchanger. The mixing can take place before and / or after the cooling of the electronic component. The mixed air can preferably be discharged from the cooking appliance via the outlet device. It is possible that at least one blower device is provided for blowing and / or sucking the mixed air.

Preferably, the dryer unit, particularly preferably the heat exchanger, can be actively cooled by means of at least one thermoelectric cooling device and / or by means of at least one heat pump device. It is also possible that the dryer unit can be cooled by means of a cooling liquid and / or by means of at least one heat pump.

Particularly preferably, the dryer unit comprises at least one heat exchanger which is air-cooled. The dryer unit preferably comprises at least one further heat exchanger. The further heat exchanger can be actively cooled, in particular with the thermoelectric cooling device and / or the heat pump device and / or the cooling liquid and / or the cooling machine. The thermoelectric cooling device comprises z. B. a Peltier element. If a heat pump device is provided, this includes preferably at least one capacitor device for condensing the humidity of the air from the cooking chamber. Preferably, the capacitor device is then also designed as an evaporator device for at least one refrigerant of the heat pump device.

The processing device is particularly suitable and designed to detect by means of at least one sensor device at least one characteristic variable for the humidity of the air to be dried and / or the dried air. The processing device is particularly suitable and designed to control the dryer unit in dependence on the detected size and in particular to regulate. Preferably, the treatment device is suitable and designed to dry the air to at least one target moisture depending on the detected size. By such a control of the treatment device, a particularly energy-saving and at the same time reliable drying operation is possible.

The sensor device comprises in particular at least one humidity sensor and / or at least one temperature sensor and / or at least one other sensor suitable for detecting the characteristic variable. The characteristic variable for the humidity can be, for example, the air humidity and / or the air temperature. The moisture sensor may be arranged, for example, in the flow direction before and / or after the dryer unit and / or within the dryer unit. The temperature sensor can be arranged, for example, in the flow direction downstream of the dryer unit and / or inside the dryer unit. It is also possible that the humidity sensor and / or the temperature sensor are arranged in the flow direction after the mixing unit. By way of example, the air humidity at room temperature can be derived via the temperature of the dried air via a dew point curve or the dew point temperature.

The processing device is in particular suitable and designed to control or regulate a drying capacity and / or a cooling capacity of the dryer unit as a function of the detected variable. For example, a power of the thermoelectric cooling device and / or the heat pump device and / or the chiller can be adjustable for this purpose. The drying performance is adjustable in particular via a volume flow and / or mass flow and / or via a temperature of the cooling medium of the heat exchanger.

In all embodiments, it is particularly preferred that the treatment device, in particular the dryer unit, is suitable and designed to dry the air to a room humidity. The room air humidity corresponds in particular to a relative one Humidity of less than 70% and preferably less than 60% and more preferably less than 50%, especially at room temperature. The room temperature is especially at 20 ° C. It can also be assumed a room temperature of 25 ° C. By drying to a humidity in the room, unwanted moisture emissions in the environment of the cooking appliance are effectively avoided. As a result, the room humidity of the kitchen is not unfavorably increased even with longer cooking and for example in the preparation of larger roast pieces in an oven.

Preferably, the treatment device, in particular the dryer unit, is suitable and designed to dry the air to a humidity not substantially above a room humidity. In particular, the treatment device is suitable and designed to dry the air to a moisture content which is not more than 30 percentage points and preferably not more than 20 percentage points and particularly preferably not more than ten percentage points above the room air humidity. It is also possible that the treatment device is suitable and designed to dry the air to a humidity below a room humidity and, for example, to a relative humidity of less than 50% at room temperature.

The treatment device may be suitable and designed to cool the air and in particular to cool it to a temperature below a room temperature. In particular, the treatment device is suitable and designed to cool the air below 20 ° C and preferably below 15 ° C and more preferably below 10 ° C. It is also possible that the treatment device is adapted to cool the air below 5 ° C. For cooling the air, the dryer unit is preferably cooled as described above. In particular, the processing device comprises at least one refrigerating machine and / or at least one heat pump device and / or at least one thermoelectric cooling device. By such cooling, the air can be dried to a particularly low level of moisture.

It is preferred that the processing device is operatively connected to at least one sensor device for monitoring a room air humidity. In particular, the treatment device is suitable and designed to define at least one measure of a residual moisture, which the dried air should have after drying, as a function of a sensed ambient air humidity. In particular, the treatment device is suitable and designed to dry the air at least approximately to this level for the residual moisture. Thereby, the drying performance can be adapted to the respective room humidity and a condensation of the discharged air in the environment of the cooking appliance is reliably avoided.

The sensor device may also comprise at least one sensor for monitoring the cooking chamber moisture. The processing device may be suitable and configured to adjust the drying performance so that the cooking chamber moisture can be set to a target value. The processing device may be suitable and designed to reduce the drying performance of the processing device at least temporarily so that the cooking chamber moisture is increased to the target value by a moisture released from a food to be cooked. The target value is preferably stored in a cooking program.

Preferably, the treatment device comprises at least one cleaning unit for cleaning the air from the cooking chamber to precipitate hydrophobic components and z. As to avoid fats in the receiving space of the furniture body or in the environment of the cooking appliance. As a result, a particularly comfortable operation is possible because contamination in the receiving space or in the kitchen is reliably counteracted. In addition, unpleasant odors can be effectively avoided. In particular, the purification unit comprises at least one catalyst device which catalyzes or supports reactions for the degradation of fats and / or oils as well as odor-causing substances of the vapor.

The cleaning unit may also comprise at least one washing device with at least one washing liquid. The washing device is particularly suitable and designed to absorb and condense, for example, hydrophobic constituents and / or odor-intensive substances and / or moisture of the vapor by means of the washing liquid. The cleaning unit may also be at least partially integrated in the drying unit. For example, a washing liquid may be provided in the drying unit, which is designed both for condensing the moisture and for condensing or washing the hydrophobic constituents of the wrass. It is also possible that the cleaning unit comprises at least one plasma device which cleans the air by at least one targeted plasma discharge. The cleaning unit can also purify the air by means of UV radiation and / or by targeted ionization.

The cleaning unit is the dryer unit in particular upstream. This has the advantage that dirt or condensate is effectively avoided in the heat exchanger. But it is also possible that the cleaning unit of the dryer unit is connected downstream.

The processing device and in particular the dryer unit and / or the cleaning unit comprise at least one collecting container and / or a discharge device for the condensate. The discharge device may be connected, for example, to a sewer system.

The outlet device comprises in particular at least one outlet opening. In particular, the outlet device opens at the outlet opening. In particular, the outlet opening is arranged where the outlet device opens. The outlet opening is in particular suitable and designed to remove the air in a targeted manner into the receiving space.

In particular, the cooking appliance is designed as a glare-free cooking appliance. In such an embodiment, an operating device is preferably integrated in the cooking chamber door. In particular, the cooking chamber door extends substantially over the entire visible area of the front side. But it is also possible that the cooking appliance is equipped with a diaphragm and, for example, a control panel.

The cooking appliance is particularly preferably designed as a built-in appliance. However, the cooking appliance can also be designed as a stand unit, which is suitable for receiving in the receiving space of the furniture body.

The inventive method is used to operate a cooking appliance, which is intended for installation in a receiving space of a furniture body. The cooking appliance comprises at least one heatable cooking chamber that can be closed by at least one cooking chamber door. The cooking appliance comprises at least one outlet device, via which air can be removed from the cooking chamber during a cooking process into the environment of the cooking appliance. In this case, the air is discharged from the cooking chamber by means of the outlet device in the receiving space of the furniture body and / or on a rear side of the cooking appliance. The outlet device is flow-connected to at least one conditioning device with at least one drying unit. The air from the cooking chamber is dried with the dryer unit to prevent precipitation of moisture in the receiving space of the furniture body or in the vicinity of the cooking appliance.

The method according to the invention also offers many advantages and, for example, a particularly user-friendly and comfortable cooking operation. Preferably, the cooking appliance described above is operable by the method according to the invention.

The cooking appliance according to the invention is preferably suitable and designed to be operated according to the method presented here.

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 Darstellung eines erfindungsgemäßen Gargeräts in einer Seitenansicht;

Figur 2

eine rein schematische Darstellung einer anderen Ausgestaltung des Gargeräts;

Figur 3

eine rein schematische Darstellung einer weiteren Ausgestaltung des Gargeräts; und

Figur 4

eine rein schematische Darstellung einer weiteren Ausgestaltung des Gargeräts.

In the figures show:

FIG. 1

a purely schematic representation of a cooking appliance according to the invention in a side view;

FIG. 2

a purely schematic representation of another embodiment of the cooking appliance;

FIG. 3

a purely schematic representation of a further embodiment of the cooking appliance; and

FIG. 4

a purely schematic representation of another embodiment of the cooking appliance.

The FIG. 1 shows an inventive cooking appliance 1, which is designed here as a baking oven 100. The cooking appliance is operated by the method according to the invention. The cooking appliance 1 has a heatable cooking chamber 11, which can be closed by a cooking chamber door 101.

For the heating of the cooking chamber 11 different heating devices are available. Among other things, it is possible to heat with a top and / or bottom heat, with a circulating air function, with a hot air heating source and / or with a grill function. It is also possible that the cooking appliance 1 is designed as a combined appliance with a microwave function and / or a steam cooking function.

The cooking appliance 1 here comprises a control device for controlling or regulating device functions and operating states. Various operating modes and preferably different cooking programs or program operating modes and other automatic functions can be executed via the control device.

To operate the cooking appliance 1, an operating device 103 is provided. For example, the operating mode, the cooking chamber temperature and / or a cooking program or a program operating mode or another automatic function can be selected and set. The operating device 103 also includes a display via which user instructions and z. B. prompts can be displayed.

The cooking appliance 1 is provided here as a built-in appliance. In the operating state of installation shown here, the cooking appliance 1 is installed in a receiving space 200 of a furniture body 201. The furniture body 201 is in particular a cabinet and z. B. a kitchen cabinet, kitchen cupboard or a kitchen cupboard.

The cooking appliance 1 comprises a processing device 3 for the treatment of air or vapor from the cooking chamber 11. The processing device 3 is equipped with a dryer unit 4 for drying the air from the cooking chamber 11. The dryer unit 4 is fluidly connected to an outlet device 2, so that the dried air is discharged from the cooking appliance 1 can be. In order to be able to supply the air from the cooking chamber 11 to the dryer unit 4, the conditioning device 3 is connected in a flow-connected manner to the cooking chamber 11 via a cooking chamber outlet 21.

In the embodiment shown here, the outlet device 2 opens into the receiving space 200 of the furniture body 201. Through the mouth in the receiving space 200 is in the use of the cooking appliance 1 of the blown air feel nothing.

The blowing of the originating from the cooking chamber 11 air into the receiving space 200 results in the cooking appliance 1 according to the invention to no moistening or even damage to the furniture body 201. By the outlet device 2 upstream conditioning device 3, the air is dried to such a low level of moisture, that under normal conditions no condensation in the receiving space 200 or outside of the furniture body 201 comes. For this purpose, the air is preferably dried to a room humidity.

The furniture body 201 is here provided with an opening 202, via which the receiving space 200 is in fluid communication with the environment of the cooking appliance 1 and, for example, with the kitchen air. Thus, the injected into the receiving space 200 air can be mixed with the room air. The opening 202 may also be arranged at other positions of the furniture body 201. It is also possible that the furniture body 201 is formed no back wall or back open.

At the mouth of the outlet 2 here an outlet 12 is arranged in the cooking device 1. In the embodiment shown here, the outlet opening 12 is located on a rear side 300 of the cooking device 1. In an alternative embodiment, the outlet opening 12 may also be arranged at another position. For example, the outlet opening 12, as shown here in dashed lines, be arranged on an upper side 301 of the cooking appliance 1. The outlet opening 12 can also be arranged on a side surface or on the back or on the underside of the cooking appliance 1. Depending on the installation situation of the cooking appliance 1, the various positions of the outlet opening 12 offer particular advantages and can therefore be combined as desired with the embodiments of the cooking appliance presented here.

The outlet opening 12 may be aligned so that the air blown out is directed away from a front side 302 of the cooking appliance 1. As a result, the outlet opening can also be arranged close to the front side 302 or in the region of the front side 302, without any draft being perceived during use, because the total air to be discharged is distributed over all leaks in the receiving space to the ambient air. The outlet opening may for example be associated with a nozzle or the like.

The dryer unit 4 may be equipped, for example, with a heat exchanger 14, which is preferably cooled with air. When the air taken out of the cooking chamber 11 flows through such an air-to-air heat exchanger 14, at least a part of the contained moisture condenses. For the condensate can be provided a collecting container and / or a discharge device. The discharge device may be connected, for example, to a sewer system.

The dryer unit 4 may additionally or alternatively be equipped with a thermoelectric cooling device 24. The cooling device 24 may, for. B. cool the heat exchanger or the air flowing through it. Additionally or alternatively, the dryer unit 4 may also include a heat pump device 34. The dryer unit 4 may also include a refrigerator, for example with a compressor. By cooling the air, a particularly high level of moisture can be condensed, so that a correspondingly high drying performance is achieved. Even in such embodiments, the condensate can be supplied to a collecting container and / or a discharge device.

Optionally, the treatment device 3 can also be equipped with a cleaning unit 7. The cleaning unit 7 comprises, for example, a catalyst device 17, which catalyses or assists reactions for the degradation of fats and / or oils as well as odor-causing substances of the vapor. The cleaning unit 7 can also be equipped with a washing device with a washing liquid, in which the unwanted constituents of Wrasens are absorbed or bound. The cleaning unit 7 may also be equipped with other suitable and not shown here components 27 for the purification of air or Wrasens.

The cleaning unit 7 is arranged here in the flow direction in front of the dryer unit 4. Thus, hard-to-remove contaminants downstream of the cleaning unit 7 are effectively avoided. However, the cleaning unit 7 can also be provided at other positions along the corresponding flow paths.

In the FIG. 2 the cooking appliance 1 is shown with a heat exchanger 14, which is cooled by a cooling air flow, which is generated by means of one or more blower 5. The cooling air flow is indicated here by a dashed line very schematically.

The cooling air flow is sucked in here via a suction opening 35. In the example shown here, the suction opening 35 is arranged in the cooking chamber door 101. However, other positions for the suction opening 35 are also possible. The cooling air flow is guided through the cooking chamber door 101 in order to cool it and thereby facilitate a trouble-free contact with the door.

The cooling air flow is here also guided along an electronic component 102 in order to cool it. The electronic component 102 is, for example, an electronics box which comprises, for example, a control device and power electronics or the like. In addition, the cooling air flow is guided along the heat exchanger 14 of the dryer unit 4 in order to cool it.

Subsequently, the cooling air flow is fed to a mixing unit 23. The mixing unit 23 is also supplied with the dried air. For this purpose, the mixing unit 23 is fluidly connected to the heat exchanger 14. In the mixing unit 23, the dried air and the cooling air flow are combined and mixed together. The mixing unit 23 is in this case flow-connected to the outlet device 2, so that the mixed air is discharged via the outlet opening 12 into the receiving space 200.

To generate the air flow here at least one fan 5 is provided. For example, a fan 5 may be arranged between the heat exchanger 14 and the mixing unit 23. Additionally or alternatively, a blower device 5 may also be arranged between the mixing unit 23 and the outlet opening 12. Additionally or alternatively, one or more blower devices 5 may also be provided at other positions along the corresponding flow paths. For example, at least one fan device 5 can also be arranged between the cooking chamber outlet 21 and the dryer unit 4 and / or between the dryer unit 4 and the mixing unit 23.

The cooking appliance 1 shown here is equipped with a sensor device 6. Preferably, the sensor device 6 is also provided in the other embodiments of the cooking device 1 presented here. The sensor device 6 is operatively connected to the processing device 3. In this case, at least temporarily, a sensor signal for controlling or regulating the processing device 3 can be used.

The sensor device 6 may include, for example, a sensor 16 for monitoring the room air humidity. The sensor 16 is arranged here on an outer side of the cooking appliance 1. But it can also be accommodated at a suitable location within the cooking device 1. The processing device here draws on the sensed ambient air humidity to determine a measure of the residual moisture, which should have the dried air after drying. In this case, the treatment device 3 sets the drying capacity of the dryer unit 4 such that the dried air does not have a residual moisture substantially above the measured room air humidity and preferably below the measured room air humidity.

The sensor device 6 may also include other sensors. For example, the dryer unit 4 can be assigned at least one sensor 26. The mixing unit 23 can also at least one sensor 36 to be assigned. For example, the drying power can be adjusted via at least one of these sensors 16, 26, 36. For example, the mixing unit 23 can be controllable or regulated as a function of the signal of the sensor 36. For example, based on a desired residual moisture, the mixing ratio of cooling air and dried air can be adjusted to bring the air to a desired target moisture.

The sensors 16, 26, 36 may be designed, for example, as humidity sensors or also as temperature sensors, for example in the context of a dew point determination. The sensors 16, 26, 36 may also be arranged at positions other than those shown here in the cooking appliance 1. The sensor device 6 also comprises only one or only a part of the sensors 16, 26, 36 shown here.

The FIG. 3 shows the cooking appliance 1 with a processing device 3, in which the dryer unit 4 is arranged in a cooling air duct 25. The cooling air duct 25 extends here between the cooking chamber 11 and the electronic component 102. The cooling air flow is used for cooling the electronic component 102 and is then guided into the cooling air duct 25. From there, the cooling air flow is blown through the outlet device 2 and its outlet opening 12 into the receiving space 200. The cooling air flow is indicated here very schematically as a dashed line.

The conditioning device 3 is connected in flow communication with the cooking chamber 11 via a cooking chamber outlet 21. The flow of the extracted from the cooking chamber 11 and then dried air is indicated here by a finely dashed line very schematically.

To promote the cooling air flow, here a blower device 5 is provided, which sucks the cooling air flow and past the electronic component 102 and then blows into the cooling air duct 23. The fan device 5 is embodied here, for example, as a double-flow radial fan and / or as a cross-flow fan.

The dryer unit 4 here comprises an air-cooled heat exchanger 14 and a thermoelectric cooling device 24, which are both disposed within the cooling air channel 25. This position of the dryer unit 4 has the advantage that the heat exchanger 14 can be blown with a corresponding amount of cooling air under pressure. As a result, a particularly good dehumidification can be achieved with the heat exchanger 14. By the thermoelectric cooling device 24, the air to be dried can then be further cooled, so that even better humidification is achieved. For example, it can be dehumidified to room air level. For example, the air can be cooled below 15 C ° or even below 5 ° C.

After the dried air has passed the treatment device 3, it flows into the mixing unit 23 and is brought together with the cooling air. The mixing unit 23 is embodied here as an open flow end of the processing device 3. The mixed air is then discharged via the outlet 2 at the outlet opening 12 into the receiving space 200.

The treatment device 3 may be associated with a blower device 5 not shown here. Thus, the air can be sucked out of the cooking chamber 11 by the processing device 3 and / or blown.

The dryer unit 4 is here preceded by a cleaning unit 7 with a catalyst device 17. The catalyst device 17 is arranged here between the cooking chamber 11 and the cooling air channel 24.

The cleaning unit 7 also includes here an air cleaner 27 through which the dried air can be additionally cleaned. For example, the air cleaner 27 allows odor neutralization by means of UV light and / or by ionization and / or plasma cleaning.

In the FIG. 4 the cooking appliance 1 is shown with a processing device 3, in which the dryer unit 4 is arranged in a common suction chamber 15 with the electronic component 102. The cooling air flow is here indicated as a dashed line and the air from the cooking chamber or the dried air as a finely dashed line in a highly schematized manner. At the mixing unit 23, the dried air is mixed here with the air of the common suction space.

In this embodiment, the dryer unit 4 discharges the dried air into the common suction space 15. As a result, the dried air is also used as cooling air for the electronic component 102 and even as cooling air flow for cooling the heat exchanger 14. This allows a particularly good cooling of both the heat exchanger 14 and the electronic component 102, since the emerging from the dryer unit 4 air was cooled correspondingly strong in the course of drying.

The cooling air flow provided for cooling the heat exchanger 14 is here sucked via one or more intake openings 35 into the common intake space 15. In this case, the cooling air flow first flows along the heat exchanger 14 and then along the electronic component 102.

The blower device 5 also sucks in additional cooling air via one or more additional intake openings 45 for cooling the electronic component 102 into the common intake space 15. The air sucked in via the further intake opening 45 does not flow along the heat exchanger 14 here. Thus, reliable cooling of both the heat exchanger 14 and the component 102 can be achieved.

Subsequently, the blower device 5 blows the cooling air flow or the additional cooling air into the cooling air duct 25. From there, the air is discharged via the outlet device 2 at the outlet opening 12 into the receiving space 200. The blower device 5 also sucks in the air for drying from the cooking chamber 11 or the dried air from the processing device 3. It can be provided to promote the air from the cooking chamber 11 and the dried air and at least one further blower device 5. Also for the cooling air flow, at least one additional fan 5 may be provided.

LIST OF REFERENCE NUMBERS

1

Cooking appliance

2

outlet

3

conditioning device

4

dryer unit

5

blower

6

sensor device

7

cleaning unit

11

oven

12

outlet

14

heat exchangers

15

suction

16

sensor

17

catalyst device

21

Garraumauslass

23

mixing unit

24

cooling device

25

Cooling air duct

26

sensor

27

air cleaner

34

A heat pump apparatus

35

suction

26

sensor

45

suction

100

oven

101

oven door

102

component

103

operating device

200

accommodation space

201

furniture body

202

opening

300

back

301

top

302

front

Claims (15)

Cooking appliance (1) for installation in a receiving space (200) of a furniture body (201) comprising at least one heated cooking space (11) which can be closed by at least one cooking chamber door (101) and at least one outlet device (2) for removing air from the cooking space ( 11) in the vicinity of the cooking appliance (1) during a cooking process,
characterized,
that the outlet (2) at least during cooking operations in the receiving space (200) of the furniture body (201) opens and / or at a rear side (300) of the cooking appliance (1), and in that the outlet (2) with at least one processing device (3 ) with at least one dryer unit (4) for drying the air from the cooking chamber (11) is flow connected to prevent precipitation of moisture in the receiving space (200) of the furniture body (201) or in the vicinity of the cooking appliance (1). Cooking appliance (1) according to the preceding claim, characterized in that the outlet device (2) opens at an upper side (301) and / or lower side and / or at least one side surface connecting the rear side (300) to a front side (302). Cooking appliance (1) according to one of the preceding claims, characterized in that the outlet device (2) is adapted and adapted to blow the dried air in a direction which is directed away from a front side (302) of the cooking appliance (1). Cooking appliance (1) according to one of the preceding claims, characterized in that the dryer unit (4) comprises at least one heat exchanger (14) for the air from the cooking chamber (11) and that the heat exchanger (14) by at least one by means of at least one blower device ( 5) generated cooling air flow is coolable. Cooking appliance (1) according to the preceding claim, characterized in that the cooling air flow for the heat exchanger (14) via at least one electronic component (102) of the cooking appliance (1) flows to the cooling thereof. Cooking appliance (1) according to the preceding claim, characterized in that the heat exchanger (14) in the flow direction of the cooling air in front of the electronic component (102) is arranged and / or in a common suction space (15) with the electronic component (102) is arranged , Cooking appliance (1) according to one of the two preceding claims, characterized in that the heat exchanger (14) in the flow direction of the cooling air behind the electronic component (102) is arranged and preferably in a cooling air channel (25) is arranged, through which the cooling air after a Pre-flow is sucked on the electronic component (102) and / or blown. Cooking appliance (1) according to one of the three preceding claims, characterized in that the cooling air flow for the heat exchanger (14) via at least one suction port (35) flows into the cooking appliance (1) and that at least one additional suction port (45) additional cooling air to Cooling of the electronic component (102) flows into the cooking appliance. Cooking appliance (1) according to one of the preceding claims, characterized in that the dried air before being discharged from the outlet device (2) is miscible with the cooling air flow for the heat exchanger (14) and / or with the additional cooling air. Cooking appliance (1) according to one of the preceding claims, characterized in that the dryer unit (4) can be actively cooled by means of at least one thermoelectric cooling device (24) and / or by means of at least one heat pump device (34) and / or by means of a cooling liquid. Cooking appliance (1) according to one of the preceding claims, characterized in that the conditioning device (3) is suitable and designed to at least one characteristic size for the humidity of the air to be dried and / or the dried air by means of at least one sensor device (6) capture and the dryer unit (4) to control depending on the detected size. Cooking appliance (1) according to one of the preceding claims, characterized in that the processing device (3) is suitable and designed to dry the air to a room humidity. Cooking appliance (1) according to one of the preceding claims, characterized in that the conditioning device (3) comprises at least one cleaning unit (7) for cleaning the air from the cooking chamber (11) to precipitate hydrophobic components in the receiving space (200) of the Furniture body (201) or in the vicinity of the cooking appliance (1) to avoid. Cooking appliance (1) according to the preceding claim, characterized in that the cleaning unit (7) of the dryer unit (4) is connected upstream. Method for operating a cooking appliance (1) for installation in a receiving space (200) of a furniture body (201) comprising at least one heated cooking space (11) which can be closed by at least one cooking chamber door (101) and at least one outlet device (2) via which air from the cooking chamber (11) during a cooking process in the environment of the cooking appliance (1) can be removed,
characterized,
that the air from the cooking chamber (11) by means of the outlet device (2) in the receiving space (200) of the furniture body (201) and / or on a rear side (300) of the cooking appliance (1) is discharged
and that the outlet device (2) is flow-connected to at least one conditioning device (3) with at least one dryer unit (4) and that the air is dried from the cooking chamber (11) with the dryer unit (4) to precipitate moisture in the receiving space (200) of the furniture body (201) or in the vicinity of the cooking appliance (1) to avoid.

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