EP2993961B1 - Appareil de cuisson et procede - Google Patents

Appareil de cuisson et procede Download PDF

Info

Publication number
EP2993961B1
EP2993961B1 EP15181651.9A EP15181651A EP2993961B1 EP 2993961 B1 EP2993961 B1 EP 2993961B1 EP 15181651 A EP15181651 A EP 15181651A EP 2993961 B1 EP2993961 B1 EP 2993961B1
Authority
EP
European Patent Office
Prior art keywords
frequency heating
sensor
temperature
component
high frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15181651.9A
Other languages
German (de)
English (en)
Other versions
EP2993961A1 (fr
Inventor
Thomas Metz
Rüdiger Höhn
Andre Peters
Stefan Homburg
Uwe Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2993961A1 publication Critical patent/EP2993961A1/fr
Application granted granted Critical
Publication of EP2993961B1 publication Critical patent/EP2993961B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/666—Safety circuits

Definitions

  • the present invention relates to a cooking device and a method for operating a cooking device and, in particular, for recognizing an empty operation of a cooking device equipped with at least one high-frequency heating device.
  • a food to be cooked is dielectrically heated in at least one cooking space and the high-frequency heating device is controlled with at least one control device.
  • Cooking devices with a microwave function offer a quick and particularly gentle cooking method for preparing food.
  • the microwaves are generated using a magnetron and guided into the cooking chamber via a wave channel.
  • a stirrer is often provided.
  • Many microwave cooking devices also have a turntable with which the food can be variably aligned in the radiation field.
  • microwave ovens generally cannot be operated with an empty cooking space.
  • the reason for this is usually that the power emitted by the magnetron must be absorbed sufficiently, since otherwise a large part of the radiation power is reflected by the walls in the cooking space and is returned to the magnetron via such reflections. If, for example, a microwave oven is operated for an extended period with an empty cooking space, the magnetron heats up to a critical level due to the reabsorbed radiation and could therefore be damaged. In addition, in such an idle mode, the reflected radiation power also heats other components and thus possibly damages them, for example the wave channel and other interior parts of the cooking space.
  • the method according to the invention is used to operate a cooking appliance equipped with at least one high-frequency heating device.
  • the method serves to identify an empty operation of such a cooking appliance.
  • the cooking device is provided for dielectric heating in at least one cooking space.
  • the high-frequency heating device is controlled by means of at least one control device.
  • a characteristic temperature of at least one component of the high-frequency heating device is detected by means of at least one sensor device.
  • the sensor device has at least one sensor which is assigned to the high-frequency heating device.
  • the heating power of the high-frequency heating device is reduced by means of the control device. The reduction occurs when the detected temperature of the component indicates an empty operation characterized by a shortage of food in the cooking space.
  • the stored threshold value describes a higher temperature than an expected maximum temperature of the component in a designated cooking mode with a food to be cooked in the cooking chamber with a maximum output of the high-frequency heating device intended for such mode. Additionally or alternatively, it is provided according to the invention that a maximum temperature is provided for certain performance preselections or program functions.
  • the method according to the invention has many advantages.
  • a considerable advantage is that the temperature of at least one component of the high-frequency heating device is recorded. On the basis of such monitoring, e.g. B. an operation without food in the cooking space can be reliably recognized, since the high-frequency heating device or one of its components is heated recognizably by the reflected radiation power.
  • Another advantage is that the heating power of the high-frequency heating device is automatically reduced if the detected temperature is on an insufficiently loaded cooking space or even on one Empty operation indicates. This makes operation in an idle mode considerably safer, since damage or even destruction of the device can be reliably avoided due to the reduced heating power.
  • reducing the heating power also means that the heating operation of the high-frequency heating device is at least temporarily completely shut down.
  • the reduced heating power or reduced power level is then retained for the cooking time to be continued or can be further reduced if the conditions so require. It is also possible that, depending on the temperature detected, at least one emergency condition is triggered.
  • the usability of the device can be limited to certain functions. For example, heating is then no longer possible.
  • the temperature detected by means of the sensor device can also be a variable characteristic of a temperature.
  • a temperature for example, an electrical resistance and / or an electrical voltage can be detected, the value (s) of which is characteristic of a specific temperature.
  • the high-frequency heating device is particularly suitable and designed to generate radiant power for the dielectric heating of food to be cooked.
  • the high-frequency heating device generates radiation power in a wavelength range of microwaves, which are provided for the operation of microwave cooking devices. Radiation power from a different wavelength range or frequency band can also be used.
  • the high-frequency heating device particularly preferably comprises at least one magnetron or is designed as such.
  • the high-frequency heating device preferably comprises at least one further component.
  • the component can be designed as a component of the magnetron. However, the component can also be designed as a wave channel and / or a distribution device for the targeted distribution of the radiation power in the cooking space.
  • the empty operation in the sense of the invention can also mean an operation with an insufficient loading of the cooking space.
  • the loading of the cooking space is in particular too low if sufficient radiation power cannot be absorbed and this leads to a critical temperature rise in appliance parts and in particular the high-frequency heating device and at least one of its components.
  • the empty mode is particularly preferably characterized in that there is no or no suitable food in the cooking space. Such an empty operation occurs, for example, when a user closes a door of the cooking space and starts the heating operation without having brought anything into the cooking space.
  • idle operation is indicated by the characteristic temperature detected exceeding at least one threshold value.
  • the threshold value is stored in the control device. At least one variable that is characteristic of a temperature can also be stored as a threshold value. The stored size preferably corresponds to the size detected by means of the sensor device.
  • the threshold value can also be designed to be adaptable by means of the control device, e.g. B. depending on a heating or cooking mode set by the user. With such a threshold value, it can be detected particularly reliably whether the detected temperature is indicated by an idle operation or not.
  • the stored threshold value describes a higher temperature than an expected maximum temperature of the component in an intended cooking mode.
  • the intended cooking mode provides for at least one item to be cooked in the cooking space.
  • the stored threshold value describes a temperature higher than an expected maximum temperature of the component at a maximum power of the high-frequency heating device provided in a designated cooking mode.
  • the maximum temperature is determined at least approximately by tests and / or calculations.
  • the maximum temperature is stored in the control device. Two or more maximum temperatures can also be stored. For example, at least one maximum temperature can be provided for certain performance preselections or program functions.
  • the threshold value is preferably at least to such an extent higher than the maximum temperature that can be regarded as tolerable with regard to heating in idle mode.
  • the temperature of the threshold value is increased to such an extent that the temperature fluctuations of the component in the intended cooking mode do not cause an overshoot and thus do not cause a malfunction. This has the advantage that, due to temperature fluctuations in the intended cooking mode, no idle mode error detections occur.
  • the threshold value can be increased, for example, by 2% or 5% or 8% or also 10% or even 20% or more compared to the maximum temperature to be expected. The exact increase is adapted to the expected power output of the high-frequency heating device.
  • a change in the recorded characteristic temperature over time is registered by means of the control device.
  • the idle mode is preferably indicated by exceeding a predetermined amount of change.
  • at least one function of the temperature over time is taken into account and evaluated.
  • the change over time then be recognized on the basis of the slope of at least part of the function.
  • Another evaluation of such a function is possible, e.g. B. using at least one algorithm.
  • the advantage of recognizing the idle mode based on the change in temperature over time has the advantage that the warming in idle mode is detected particularly early. It is particularly advantageous that, based on the temperature rise, the idle mode can be recognized even before a maximum temperature is reached.
  • the temperature of at least one anode device is recorded.
  • the anode device is in particular a component of the high-frequency generator. It is also possible to record the temperature of at least one cathode device and / or an antenna device and / or a magnetic device of the high-frequency heating device.
  • the anode device is preferably designed as at least one anode block.
  • the sensor for temperature detection is preferably arranged in a heat-conducting manner on the anode device. Detecting the temperature at the anode device is particularly advantageous since this component of the high-frequency heating device heats up particularly characteristically when it is idle.
  • At least one acoustic and / or visual warning is issued to the user depending on the characteristic temperature detected. For example, a user can be signaled that the cooking device is being operated without food to be cooked. There may also be a prompt, e.g. B. that the food should be placed in the cooking space before the microwave mode is used.
  • the cooking device comprises at least one high-frequency heating device for the electrical heating of food to be cooked in at least one cooking space.
  • At least one control device for controlling the high-frequency heating device is provided.
  • At least one sensor device is suitable and designed to detect at least one characteristic temperature of at least one component of the high-frequency heating device.
  • the control device is suitable and designed to reduce the heating power of the high-frequency heating device as a function of the detected temperature.
  • the control device is also suitable and designed to reduce the heating output when the detected temperature of the component indicates an empty operation characterized by a lack of food in the cooking space.
  • the sensor device comprises at least one sensor assigned to the high-frequency heating device.
  • the component is in particular an anode device.
  • the sensor is contacted with the component and the holding device is suitable and designed to elastically press the sensor against the component.
  • the cooking device according to the invention has the particular advantage that a control device is suitable and designed for an empty operation based on a Recognize temperature detection and reduce the heating output accordingly. This makes the cooking appliance particularly reliable, even when it is empty. So no critical heating occurs even if the user z. B. has forgotten to put food in the cooking space and still switches on the cooking mode. In such a case, there is no damage to the device, since the heating output is reduced to an uncritical level.
  • temperature detection it is possible for temperature detection to take place on two or three or more components.
  • two or more sensors are preferably also provided.
  • the sensor is in particular in contact with the component in a heat-conducting manner.
  • the sensor is designed as a thermistor, NTC and / or PTC resistor.
  • Other types of temperature sensors are also possible.
  • the characteristic temperature can also represent a temperature of another component, which as such is characteristic of the anode temperature, e.g. B. a cooling fin.
  • the cooking appliance is particularly preferably suitable and designed to be operated using the method according to the invention and / or one of the embodiments of the method described above.
  • the senor has at least one contour adapted to at least one outer region of the anode device.
  • the contour is preferably at least partially complementary to the outer region.
  • the anode device is complexly rounded on the outside at least in some areas, the sensor having at least one correspondingly concavely rounded outer surface.
  • Such an embodiment enables particularly good temperature detection of the sensor on the anode device.
  • the sensor can also be accommodated in at least one, in particular heat-conducting, support device which itself has an adapted contour. The detection area of the sensor itself cannot have an adapted contour.
  • the sensor can also be accommodated on at least one holding device.
  • the holding device is particularly suitable and designed to press the sensor elastically against the anode device.
  • Such an embodiment has the advantage that a heat-conducting contact of the sensor is ensured even in the case of fluctuating temperatures, since the thermal expansion is compensated for by the elastic holding device.
  • the holding device has one or two or more holder brackets made of an elastic and / or flexible plastic.
  • the holding device is preferably attached to at least one cooling device.
  • the cooling device is particularly suitable and designed to at least partially temper and in particular to cool the high-frequency heating device.
  • the holding device is particularly preferably suitable and designed for the sensor to be arranged elastically between the anode device and the cooling device.
  • the cooling device preferably has a plurality of cooling fins.
  • the holding device is attached to at least one cooling fin.
  • the holding device has at least one latching device for latching on the cooling fin.
  • Such attachment of the sensor to a cooling fin by means of a holding device enables inexpensive and reliable assembly.
  • such a holding device is economical to manufacture, for. B. as an injection molded part.
  • the holding device can also be attached to a housing and / or a component of the high-frequency heating device.
  • the cooling device is preferably suitable and designed to guide cooling air along the anode device.
  • the sensor is arranged in particular at a position of the anode device at which the cooling air has already passed to the anode device to a large extent.
  • the cooling air at this position has passed the anode device to at least 50%, preferably more than 75% and particularly preferably more than 90%.
  • a position at which the cooling air has already completely passed the anode device is also possible.
  • the sensor is arranged on a shadow side with respect to the cooling air on the anode device.
  • At least one active cooling can be provided, e.g. using a fan. Passive cooling is also possible.
  • Such an embodiment has the advantage that the temperature of the anode device is adjusted in an already cooled state in order to detect idle operation.
  • the senor is at least partially accommodated in at least one insulating medium.
  • the insulating medium is in particular a plastic material. It is thereby advantageously achieved that the sensor is shielded from other temperature influences not originating from the anode device.
  • the insulating medium is formed at least partially in one piece with the holding device.
  • the holding device can also be used at least partially as an insulating medium.
  • the sensor can also be attached to the holding device together with the insulating medium, for. B. locked.
  • the Figure 1 shows a highly schematic representation of a cooking appliance 1 according to the invention in a perspective view.
  • the cooking device 1 is designed here as a microwave oven 100.
  • the cooking device 1 is preferably designed here as a combination device which comprises a microwave oven 100 with a steam cooking function.
  • the cooking device 1 has, in particular, a steam generator and a correspondingly sealed cooking chamber 4, which is appropriately sealed with regard to microwave radiation and also steam.
  • the cooking space 4 is provided for the preparation of dishes and can be closed with a door 101.
  • the cooking appliance 1 can be operated via an operating device 102, e.g. B. various program functions can be set.
  • a high-frequency heating device 13 is provided here for the dielectric heating of the food to be cooked in the cooking chamber 4 in a microwave mode and also in a steam-microwave combination mode.
  • the high frequency heater 13 comprises several components, e.g. a magnetron, a wave channel and a wave distribution device. As well as other components intended for generating and feeding microwaves into the cooking space.
  • a control device 5 is provided here for controlling device functions and for monitoring the operation.
  • the control device 5 is operatively connected to a sensor device 6, so that the control device 5 can register and process the operating parameters detected by the sensor device 6.
  • the sensor device comprises a sensor for detecting the temperature in the cooking space 4, so that e.g. the output of a steam generator or a thermal heat source can be regulated accordingly.
  • the sensor device 6 can also comprise a sensor which is designed as a door contact.
  • the control device 5 only enables the operation of the high-frequency heating device 13 as a function of a door detected as closed.
  • the Figure 2 shows a magnetron 63 of the high-frequency heating device 13 in a highly schematic side view.
  • the magnetron 63 has an anode device as a component 23 and two magnetic disks 53.
  • a cooling device 33 is provided for cooling the component 23 during operation includes a plurality of cooling fins 330.
  • the cooling device 33 is actively designed, for example a fan (not shown here) is provided for generating an air flow.
  • the radiation power generated in the magnetron 63 is coupled via an antenna 43 into a wave channel (not shown here) and is passed on from there into the cooking chamber 4.
  • the magnetron 63 is accommodated in a housing 300.
  • the radiation power is partially reflected back from the cooking space walls into the high-frequency heating device 13 and in particular into the magnetron 63 or the wave channel.
  • the heating power of the high-frequency heating device 13 is reduced as soon as an empty operation is detected.
  • the control device 5 monitors the degree of heating of the component 23 by means of a temperature sensor 16 of the sensor device 6.
  • the sensor 16 is here as a thermoelectric resistance sensor and z. B. designed as a PT1000.
  • the sensor 16 is received in a holding device 26, which is attached between a cooling fin 330 and the upper magnetic disk 53.
  • the attachment of the sensor 16 is particularly advantageous since it is positioned at this point on the shadow side of the air duct of the cooling device 33. As a result, the temperature of the anode block can be tapped at a point which would overheat correspondingly early in the case of an empty operation. On the shadow side, the cooling has passed component 23 almost completely here.
  • the sensor 16 is embedded in an insulating medium 36 here.
  • the insulating medium 36 is, for. B. a plastic material which is particularly suitable as a thermal insulator.
  • the sensor 16 and the insulating medium 36 are received in an outer region of the holding device 26.
  • the outer area of the holding device 26 points directly to the outside of the component 23. This results in a direct contact of the sensor 16 with the component 23. Such a contacting of the sensor 16 with the component 23 results in a particularly precise detection of the temperature.
  • the holder device 26 is fastened here to the cooling lamella 330 via latching devices 64.
  • Such a snap-in connection can be installed particularly quickly and easily, which considerably reduces the costs for the production of cooking devices 1 with a detection of the empty operation presented here.
  • other types of fastening can also be provided.
  • the sensor 16 can also detect or fasten the temperature to another component of the high-frequency heating device 13.
  • the holding device 26 is formed here from a partially elastic plastic material.
  • the holding device 26 has two opposite recesses, so that there are two holding brackets encompassing the recesses, which further improves the flexibility of the holding device 26.
  • the component 23 designed as an anode device here has a rounded outer contour.
  • the temperature sensor 16 is also provided with a correspondingly complementary contour.
  • the Figure 3 shows the above-described high-frequency heating device 13 in a plan view.
  • the high-frequency heating device 13 is the Figure 2 shown in a section cut along the line AA.
  • the shape of the holder device 26 and its positioning together with the sensor 16 on the component 23 can be recognized particularly well.
  • FIG. 4 Another magnetron 63 of a high-frequency device 13 is shown.
  • the sensor 16 is fastened with a holding device 26 to an uppermost cooling fin 330 and detects the temperature of the component 23.
  • FIG. 5 shows the magnetron 63 of Figure 4 in a side view rotated by 90 degrees. For better clarity, the holding device 26 with the sensor 16 has not been shown.
  • a sensor 16 received in a holding device 26 is shown in a top view and a side view.
  • the holding device 26 here comprises two holding brackets lying opposite one another and extending from a central region. Such holding brackets provide an elastic fastening of the sensor 16 accommodated in the holding device 26.
  • the holding brackets are preferably locked in place on at least one cooling fin.
  • the sensor 16 is embedded in an insulating medium 36 between the holding brackets. That side of the sensor 16 protrudes from the insulating medium 36 which, in the installed state, is used for heat detection on the component 23.
  • the insulating medium 36 is here made of a plastic material and has a concavely rounded contour 56. With this contour 56, the sensor 16 together with the insulating medium 36 can be applied particularly closely to a correspondingly rounded component 23.
  • An exemplary power curve 630 is shown, in which the power 602 of the high-frequency heating device 13 was plotted over time 601.
  • the power curve 630 shows a clocked circuit of the high-frequency heating device 13.
  • the temperature 600 of the component 23 was recorded and plotted over time 601 as the temperature curve 660.
  • Cooking chamber 4 was loaded with one liter of water.
  • the temperature 600 moves quickly after the start of the power supply above a lower threshold value 662 and remains below during further operation an upper threshold value 661.
  • the upper threshold value 661 is, for example, approximately 160 degrees Celsius.
  • the lower threshold value 662 is, for example, approximately 100 degrees Celsius.
  • the Figure 9 shows a power curve 630 and a temperature curve 660, both of which are as before in FIG Figure 8 described recorded and presented. Unlike that Figure 8 however, an idle operation was carried out here. There was no food to be cooked in the cooking space 4.
  • the temperature 600 of the component 23 also rises very quickly above the lower threshold value 662 and subsequently also rises above the upper threshold value 661.
  • the method for recognizing an idle operation is used here.
  • the correspondingly designed control device 5 detects that the upper threshold value 661 has been exceeded.
  • the upper threshold value 661 denotes a maximum temperature which is normally not to be expected in normal and intended cooking mode.
  • the control device therefore evaluates the increased temperature of the component 23 as the cause of an idle operation.
  • the power 602 of the radio-frequency device 13 is then reduced by the control device 5.
  • the temperature 600 of component 23 also drops accordingly.
  • a temperature between 10 seconds and 90 seconds is measured at the beginning of a microwave operation. If the temperature exceeds the threshold 662, the power is reduced.
  • a user sets a microwave power of 1000 watts. If the threshold values 662 or 661 are exceeded, the microwave power is reduced to 600 watts. With a microwave power of 600 watts, the microwave is on for 36 seconds in one minute and off for 24 seconds (formula: (microwave power / 1000) * 60). The microwave power release is then not dependent on the threshold value 662. If the threshold value 661 is then exceeded for the microwave power 600 watts, the microwave line is reduced from 600 watts to 450 watts. With a microwave power of 450 watts, the microwave is on in one minute 27 seconds and off in 33 seconds.
  • the control device 5 takes into account that an idle operation has already been determined beforehand. Accordingly, the power of the high frequency heater 13 is limited to only one certain value set. This is done here, for example, by clocking with correspondingly shorter on phases and / or by correspondingly longer off phases or clock pauses. For example, the power of the high-frequency heating device is reduced to a nominal power input of approximately 600 watts. This has the advantage that the temperature 600 in the switched-on clock phases of the high-frequency heating device 13 no longer reaches or exceeds the upper threshold value 661.
  • reducing the power has the advantage that, on the one hand, there is no danger in empty operation and, on the other hand, cooking is still possible.
  • Such food can be popcorn, for example, which can also be optimally prepared with the reduced output.
  • the gradient of the temperature profile 660 can also be used to determine how much food is in the cooking space 4. Since the slope also depends on a dielectric moment in the cooking space 4, it can also be used to determine, for example, how high the water content in the food is. In addition to a targeted reduction in the power of the high-frequency heating device 13 in an idle mode, this information can also be used for a targeted power control. For example, it can be determined in what capacity a food with a certain water content must or can be exposed in order to achieve optimal cooking.
  • the method presented here and the cooking device 1 presented enable very safe and reliable microwave operation, since the cooking chamber 4, the device 1 and the interior parts of the cooking chamber remain intact even without any food to be cooked in the cooking chamber 4 or with only a very small amount of food.
  • the detection of idle operation presented here by means of a sensor 16 on a component of the high-frequency heating device 13 is a very cost-effective solution since, in addition to the additional equipment with the sensor 16, no complex hardware changes need to be made on the device 1.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Claims (12)

  1. Procédé pour faire fonctionner, notamment pour détecter un fonctionnement à vide d'un appareil de cuisson (1) équipé d'un dispositif de chauffage à haute fréquence (13) pour chauffer diélectriquement l'aliment à cuire dans une chambre de cuisson (4), le chauffage à haute fréquence (13) étant commandé par un dispositif de commande (5), et une température caractéristique d'un composant (23) du dispositif de chauffage à haute fréquence (13) étant détectée au moyen d'un dispositif de détection (6) comportant un capteur (16) associé au dispositif de chauffage à haute fréquence (13), et en ce que la puissance calorifique du dispositif de chauffage à haute fréquence (13) est réduite au moyen du dispositif de commande (5) en fonction de la température détectée du composant (23) lorsque la température détectée du composant (23) indique un fonctionnement à vide caractérisé par une quantité réduite d'aliments à cuire dans la chambre de cuisson (4), le fonctionnement à vide étant indiqué lorsque la température caractéristique détectée dépasse une valeur seuil mémorisée dans le dispositif de commande (5), caractérisé en ce que la valeur seuil mémorisée décrit une température supérieure à une température maximale du composant (23) attendue lors d'une opération de cuisson correcte avec un aliment dans la chambre de cuisson (4) à une puissance maximale prévue du dispositif de chauffage à haute fréquence (13) pour cette opération, et une température maximale étant prévue respectivement pour des présélections de puissance ou des fonctions de programme spécifiques.
  2. Procédé selon la revendication 1, dans lequel la valeur seuil est adaptée aux puissances de sortie du dispositif de chauffage à haute fréquence attendues, la valeur seuil augmentant, par exemple de 2 %, de 5 %, de 8 % ou de 10 %, ou même de 20 % ou plus par rapport à la température maximale attendue.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que la température d'un moyen formant anode est détectée comme composant (23) du dispositif de chauffage à haute fréquence (13).
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'en fonction de la température caractéristique détectée, au moins un avertissement acoustique et/ou optique est émis en sortie.
  5. Appareil de cuisson (1) comportant un dispositif de chauffage à haute fréquence (13) pour le chauffage diélectrique des aliments à cuire dans une chambre de cuisson (4), et un dispositif de commande (5) permettant de commander le dispositif de chauffage à haute fréquence (13), un dispositif de détection (6) comportant un capteur (16) associé au dispositif de chauffage à haute fréquence (13) étant adapté et conçu pour détecter une température caractéristique d'au moins un composant (23) du dispositif de chauffage à haute fréquence (13), et le dispositif de commande (5) étant adapté et conçu pour réduire, en fonction de la température détectée, la puissance calorifique du dispositif de chauffage à haute fréquence (13) lorsque la température détectée du composant (23) indique un fonctionnement à vide caractérisée par un manque d'aliment à cuire dans la chambre de cuisson (4), caractérisé en ce que le dispositif de commande (5) est adapté et conçu pour exécuter le procédé selon l'une des revendications 1 à 4.
  6. Appareil de cuisson (1) selon la revendication précédente 5, caractérisé en ce que le capteur (16) est en contact avec le composant (23).
  7. Appareil de cuisson (1) selon l'une des revendications précédentes 5 ou 6, caractérisé en ce que le capteur (16) présente un contour (63) adapté à une zone extérieure du composant (23).
  8. Appareil de cuisson (1) selon l'une des revendications précédentes 5 à 7, caractérisé en ce que le composant (23) est un moyen formant anode.
  9. Appareil de cuisson (1) selon l'une des revendications précédentes 5 à 8, caractérisé en ce que le capteur (16) est logé sur au moins un dispositif de retenue (26), et en ce que le dispositif de retenue (26) est adapté et conçu pour presser élastiquement le capteur (16) contre le moyen formant anode (23).
  10. Appareil de cuisson (1) selon la revendication précédente 9, caractérisé en ce que le dispositif de retenue (26) est fixé à un dispositif de refroidissement (33) pour le refroidissement du dispositif de chauffage à haute fréquence (13).
  11. Appareil de cuisson (1) selon la revendication précédente 10, caractérisé en ce que le dispositif de refroidissement (33) est adapté et conçu pour conduire de l'air de refroidissement le long du composant (23), notamment le long du moyen formant anode, le capteur (16) étant disposé à une position sur le moyen formant anode (23), position à laquelle l'air de refroidissement a traversé le composant (23), notamment le moyen formant anode, vers une partie prédominante.
  12. Appareil de cuisson (1) selon l'une des revendications précédentes 5 à 11, caractérisé en ce que le capteur (16) est au moins partiellement logé dans un milieu isolant (36).
EP15181651.9A 2014-09-02 2015-08-20 Appareil de cuisson et procede Active EP2993961B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014112590.8A DE102014112590A1 (de) 2014-09-02 2014-09-02 Gargerät und Verfahren

Publications (2)

Publication Number Publication Date
EP2993961A1 EP2993961A1 (fr) 2016-03-09
EP2993961B1 true EP2993961B1 (fr) 2020-01-15

Family

ID=54007529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15181651.9A Active EP2993961B1 (fr) 2014-09-02 2015-08-20 Appareil de cuisson et procede

Country Status (2)

Country Link
EP (1) EP2993961B1 (fr)
DE (1) DE102014112590A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117922A1 (de) 2016-09-22 2018-03-22 Rational Aktiengesellschaft Verfahren zum Betreiben einer Mikrowellenquelle und ein Gargerät
DE102018105006A1 (de) * 2018-03-05 2019-09-05 Muegge Gmbh Verfahren zur Überwachung eines Magnetrons und Magnetron mit einer Temperaturerfassungseinrichtung
DE102019211065A1 (de) 2019-07-25 2021-01-28 BSH Hausgeräte GmbH Betreiben eines Mikrowellen-Haushaltsgeräts abhängig von einer Mikrowellengenerator-Temperatur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121991A (ja) * 1990-09-11 1992-04-22 Matsushita Electric Ind Co Ltd 高周波加熱装置
FR2759238B1 (fr) * 1997-01-31 1999-03-05 Moulinex Sa Dispositif de mesure de la temperature d'un magnetron pour four a micro-ondes
DE102004015993B4 (de) * 2004-04-01 2010-04-15 Electrolux Schwanden Ag Mikrowellengerät sowie Verfahren zum Betrieb eines Mikrowellengeräts
JP2010196940A (ja) * 2009-02-24 2010-09-09 Panasonic Corp 高周波加熱装置
EP2469974B1 (fr) * 2010-12-21 2017-01-25 Whirlpool Corporation Procédés pour la commande du refroidissement d'un appareil de chauffage par micro-ondes et appareil correspondant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2993961A1 (fr) 2016-03-09
DE102014112590A1 (de) 2016-03-17

Similar Documents

Publication Publication Date Title
EP2993961B1 (fr) Appareil de cuisson et procede
EP3223582B1 (fr) Dispositif de cuisson comprenant une fonction d'étalonnage
DE3875839T2 (de) Hochfrequenzheizgeraet.
KR20110083726A (ko) Ｒｆ 에너지를 사용하여 가열하는 장치 및 방법
CN106500143A (zh) 微波炉及其加热控制方法
US20200008273A1 (en) Thawing apparatus and thawing method
DE102016116598B3 (de) Verfahren und Computerprogramm zur Heizungssteuerung eines Haushaltgeräts über virtuelle Temperatur sowie entsprechendes Haushaltsgerät
EP3560281B1 (fr) Dispositif pour appareil de cuisson
EP3808235B1 (fr) Procédé de fonctionnement d'un système de chauffage et appareil de cuisine
DE102006005293A1 (de) Backofen
EP1768461B1 (fr) Méthode pour générer, traiter et évaluer un signal en correlation avec la température, et dispositif correspondant
DE102018202519B4 (de) Verfahren zum Betreiben eines Haushaltsgeräts mit Auftaufunktion und Haushaltsgerät zum Durchführen des Verfahrens
KR20190083817A (ko) 스팀을 이용하는 조리장치
CN112869568A (zh) 烹饪器具及其加热控制方法和加热控制装置
EP2639514B1 (fr) Dispositif d'appareil de cuisson
EP2712526A1 (fr) Système de cuisson
DE102007012379A1 (de) Kochfeldvorrichtung
DE102019112517B4 (de) Verfahren zum Betreiben eines Geräts, insbesondere Gargerät, und Gerät
DE102014112589B4 (de) Gargerät und Verfahren zum Betreiben
EP4005344B1 (fr) Contrôle d'un four microonde basé sur la température d'un générateur de micro-ondes
WO2019219362A1 (fr) Procédé de fonctionnement d'un appareil électroménager à micro-ondes
CN110134158B (zh) 一种控制方法、设备及计算机存储介质
DE102017114987B3 (de) Messsonde und Gargerät mit einer solchen Messsonde
CN114224201A (zh) 一种加热保护方法及控制装置、烤箱
EP3258738B1 (fr) Dispositif d'appareil de cuisson

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160909

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180425

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190930

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502015011511

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: COSMOVICI INTELLECTUAL PROPERTY SARL, CH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015011511

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1226309

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200215

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200115

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200416

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200515

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015011511

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20201016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200820

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200115

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230902

Year of fee payment: 9

Ref country code: AT

Payment date: 20230818

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230831

Year of fee payment: 9

Ref country code: BE

Payment date: 20230825

Year of fee payment: 9