EP3477205B1 - Appareil électroménager - Google Patents

Appareil électroménager Download PDF

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Publication number
EP3477205B1
EP3477205B1 EP17001761.0A EP17001761A EP3477205B1 EP 3477205 B1 EP3477205 B1 EP 3477205B1 EP 17001761 A EP17001761 A EP 17001761A EP 3477205 B1 EP3477205 B1 EP 3477205B1
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EP
European Patent Office
Prior art keywords
radiation
household appliance
electronic household
sensor system
optical sensor
Prior art date
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EP17001761.0A
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German (de)
English (en)
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EP3477205A1 (fr
Inventor
Leszek Zatorski
Marcin Andrys
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
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Priority to EP17001761.0A priority Critical patent/EP3477205B1/fr
Publication of EP3477205A1 publication Critical patent/EP3477205A1/fr
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Publication of EP3477205B1 publication Critical patent/EP3477205B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens

Definitions

  • the present invention relates to an electronic household appliance. in particular an electronic household appliance with a treatment room for treating goods.
  • Electronic household appliances with a treatment room for treating goods such as ovens and microwave ovens with a cooking space, extractor hoods with an extractor room, refrigerators and / or freezers with a fridge or freezer, dishwashers with a washing area, laundry treatment devices with a washing machine or Drying room, are usually exposed to pollution when they are used and therefore require regular cleaning of the treatment room in order to ensure the long-term efficiency of the treatment of the goods in the treatment room.
  • the user of the household appliance is recommended to clean the treatment room at regular intervals of, for example, three months.
  • the degree of soiling of the treatment room on the basis of the number and type of treatment processes actually carried out and to determine on this basis a point in time for the next cleaning of the treatment room (cf. for example DE 10 2014 217 636 A1 ).
  • the treatment room can then be cleaned manually by the user or by a self-cleaning device in the household appliance (cf. e.g. DE 10 2008 025 294 B4 ) respectively.
  • the DE 699 12 507 T2 a device for assessing the state of dirt in oven rooms which uses a cracking cell in which the fats or dirt from the baking process are cracked in the course of an exothermic reaction.
  • the cracking energy released in this reaction is measured in order to infer the amount of cracked contaminants from the baking process and the amount of contaminants deposited on the walls.
  • the WO 2014/102074 A1 an oven with a cooking space, a light source for illuminating the cooking space and an optical sensor behind a wall of the cooking space, wherein a transparent plate is provided in the wall and the sensor detects the light waves emitted by the light source in the cooking space and transmitted through the transparent plate and a control unit determines a degree of contamination of the cooking space by evaluating the detected light intensity.
  • the DE 101 28 024 A1 a method for controlling the self-cleaning of a cooking device, in which an optical sensor detects an optical radiation emitted by a light source into a cooking space and transmitted through a lens in a cooking space wall opposite the light source, and the start and / or duration of a self-cleaning of the cooking space depending on the detected optical radiation can be controlled.
  • the DE 10 2012 218 002 A1 discloses a cooking appliance with a cooking chamber and a lamp arranged in the cooking chamber, an optical sensor determining a degree of contamination of the cooking chamber on the basis of light received by the lamp and the light intensity and / or the light color of the lamp being set as a function of the degree of contamination of the cooking chamber.
  • the KR 10-2011-0011817 A discloses a cooking appliance with a cooking chamber and a light receiving sensor in the cooking chamber, which detects light emitted by a light emission unit or a lamp in the cooking chamber and radiates through the cooking chamber, the detected light depending on contamination of the covers of the light receiving sensor and the light emission unit or lamp.
  • the DE 10 2014 116 709 A1 discloses a cooking device and a method for determining the degree of contamination of a cooking device on which the preamble of claim 1 is based.
  • the cooking appliance has a cooking space which is surrounded by at least one cooking space wall and an optical contamination sensor which has a transparent sensor surface as part of the cooking space wall, a light source and a light sensor, the light source and the light sensor being on the same side of the transparent sensor surface are arranged outside the cooking space in such a way that light from the light source falls obliquely onto the sensor surface and light reflected from the sensor surface is received by the light sensor in order to infer the degree of contamination of the cooking space based on the received light, since the transparent sensor surface on the cooking space side is contaminated changes the refractive index of the sensor surface and cancels the total reflection on the sensor surface.
  • the invention has for its object to provide an electronic household appliance with a treatment room for treating goods, in which an improved detection of the degree of contamination of the treatment room is possible.
  • the electronic household appliance of the invention has a treatment room for treating goods, which is at least partially delimited by at least one wall, and an optical sensor system for detecting an actual degree of contamination of the treatment room, which is provided on at least one wall of the treatment room.
  • the optical sensor system has at least one radiation source for emitting electromagnetic radiation and at least one radiation detector for detecting electromagnetic radiation
  • the wall has at least one plate which is at least partially radiation-transparent for the electromagnetic radiation used by the optical sensor system and which at least when the electronic household appliance is used is partially exposed to pollution.
  • the radiation source and the radiation detector are arranged on the same side of the radiation-transmissive plate, a radiation reflector is provided in / on the treatment room opposite the radiation-transmissive plate, and the radiation detector detects a radiation emitted by the radiation source, transmitted through the radiation-transmissive plate and on the radiation reflector reflected and again transmitted through the radiation-transmissive plate electromagnetic radiation.
  • optical sensors on a wall of the treatment room to determine the actual degree of contamination of the treatment room capture.
  • the degree of transmission of the radiation-transmissive plate and the degree of reflection of the radiation reflector are influenced by their degree of soiling, so that the actual degree of soiling of the treatment room can be inferred from the radiation detected by the radiation detector.
  • recording the actual degree of soiling in contrast to, for example, estimates of the degree of soiling based on the previous operation of the household appliance or at predetermined intervals, cleaning operations which are not yet necessary and are carried out too late can be avoided.
  • the life of the household appliance can be extended in this way. The comfort for the user is improved since the user does not have to check the degree of soiling himself or to remember predetermined time periods.
  • optical sensor system on a wall of the treatment room enables a simple, compact and inexpensive construction of the detection device and, in the long term, a reliable and accurate detection of the degree of contamination.
  • the construction according to the invention can also be easily retrofitted into existing household appliances.
  • the electronic household appliance is in particular a (baking) oven, a microwave oven, an extractor hood, a refrigerator and / or freezer, a dishwasher, a laundry treatment device (washing machine, tumble dryer, etc.) or the like.
  • the treatment room of the electronic household appliance is, in particular, a cooking space, an open space below the extractor hood, a cooling or freezing room, a washing room, a washing or drying room or the like.
  • the treatment room is separated by at least one wall, i.e. delimited by one or more walls.
  • the treatment room is at least partially delimited by the at least one wall, i.e. it is, for example, a completely closed or closable room or a room open on one or more sides.
  • the optical sensor system should be provided on a wall of the treatment room.
  • this is to be understood to mean that at least one component of the optical sensor system is arranged in the region of a wall (ie in particular built into the wall or on the side of the wall facing away from the treatment room).
  • Several components of the optical sensor system can also be arranged on a wall of the treatment room.
  • the electronic household appliance also has an output device for (optically or acoustically) outputting information relating to a need for cleaning of the treatment room to a user of the electronic household appliance based on the degree of contamination detected by the optical sensor system.
  • the output device can in particular be integrated in a control panel of the household appliance.
  • the electronic household appliance is also equipped with a self-cleaning device for automatically cleaning the treatment room.
  • the self-cleaning device is preferably equipped with a pyrolysis function.
  • the electronic household appliance preferably also has a controller for actuating the self-cleaning device.
  • This control is preferably carried out automatically as a function of the degree of contamination detected by the optical sensor system and / or via a manual activation by a user of the electronic household appliance via a cleaning command entered by means of an operating device.
  • the self-cleaning device is automatically activated by the control at a suitable time after use of the treatment room after the optical sensor system has determined a degree of soiling of the treatment room that requires cleaning, or activated manually by a user after the user has used the dispensing device to determine whether the treatment room needs cleaning has been informed.
  • the basic shape of the radiation-transmissive plate is in principle arbitrary, it can in particular be flat or completely or partially curved, it can in particular be essentially rectangular or circular.
  • the basic design of the plate is basically arbitrary, it can in particular be designed as a rigid or flexible plate element or as a film element.
  • the at least one radiation-transmissive plate is a window in a wall of the treatment room.
  • the at least one radiation-transmissive plate is a lamp cover for lighting the treatment room. If the optical sensor system has several radiation-transmissive plates, these can be designed according to one of these embodiments or in different embodiments.
  • the embodiment with the lamp cover as a radiation-transmissive plate offers the advantage that a component which is already present in the household appliance and which is matched to the use of the respective household appliance can be used for the optical sensors.
  • the radiation detector is preferably designed to detect an intensity, a wavelength, a wavelength spectrum, a detection location and / or a detection location distribution of the electromagnetic radiation.
  • the radiation source is preferably designed to emit visible light, laser light, infrared radiation or UV radiation of one or more wavelengths.
  • the electronic household appliance also has an operating device, via which a user of the electronic household appliance can selectively activate or deactivate the optical sensor system.
  • This control device is preferably integrated in a control panel of the household appliance.
  • the operating device preferably contains further input options for controlling the household appliance.
  • the optical sensor system is designed or can be controlled in order to detect the actual degree of contamination of the treatment room at regular time intervals, after each use of the treatment room and / or upon activation by a user of the electronic household appliance.
  • the optical sensor system is designed to detect the actual degree of contamination of the treatment room at several points in the treatment room. As a result, the accuracy and reliability of the detection of the actual degree of contamination by the optical sensor system can be further improved.
  • the optical sensor system preferably contains this Purpose of several radiation sources and / or several radiation detectors and / or several radiation-permeable plates at different points in the treatment room of the electronic household appliance. The degree of contamination is preferably monitored in three to five different areas of the treatment room.
  • FIG. 1 The basic structure of an electronic household appliance according to the present invention is first explained using the example of an oven with a cooking space.
  • the electronic household appliance 10 designed as an oven has a cooking space as a treatment space 12 for cooking food.
  • This cooking chamber 12 is delimited by a device wall 14, an intermediate wall 16 for separating electronic components from the cooking chamber, and a device door 18 for closing an access opening to the cooking chamber, and a floor (not shown) and a ceiling (not shown).
  • an assembly 20 for example designed as a heater or grill, is provided for cooking the food in the cooking chamber 12.
  • This unit 20 is controlled by a controller 22.
  • the controller 22 is connected to an operating panel which is arranged on a device wall 14 for the user to see and access.
  • the control panel has in particular an operating device 24 with input elements and display elements.
  • an output device 26 for optically and / or acoustically outputting information relating to the cleaning requirements of the cooking space 12 is provided in the control panel.
  • the controller 22 is also connected to an optical sensor system 30, which is arranged behind a radiation-permeable plate 28 in the intermediate wall 16.
  • This optical sensor system 30 is designed to detect the actual degree of contamination of the cooking space 12.
  • the controller 22 then outputs corresponding information regarding the cleaning requirement of the cooking space 12 to the user as a function of the detection result of the optical sensor system 30 via the output device 26.
  • the optical sensor system 30 can detect the degree of contamination of the cooking space 12 at one point or preferably at several points in / on the cooking space 12.
  • the degree of soiling is detected by the optical sensor system 30, for example, at regular time intervals, after a cooking process has been completed in the cooking space 12 and / or upon individual activation by the user.
  • the optical sensor system 30 can also be completely deactivated by the user using the operating device 24.
  • the user If the user is shown an existing cleaning requirement via the output device 26, he can clean the cooking chamber 12 manually. Since the need for cleaning is determined by means of the optical sensors 30 on the basis of the actual degree of soiling of the cooking space 12, unnecessary or too late cleaning of the cooking space 12 can be avoided.
  • a self-cleaning device 32 is additionally provided in the cooking space 12, with which the cooking space 12 can be cleaned automatically.
  • This self-cleaning device 32 can be activated automatically by the controller 22 if the optical sensor system 30 needs cleaning of the cooking space 12.
  • the self-cleaning device 32 can be activated manually by the user via the operating device 24, in particular if the user has been informed about a cleaning requirement of the cooking chamber 12 via the output device 26.
  • FIGS Fig. 4 The embodiment shown is an embodiment of the present invention, while the remaining figures show various comparative examples for a better understanding of the invention.
  • the optical sensor system 30 has a first radiation-transmissive plate 28a, which is provided as a window in a first intermediate wall 16a of the oven 10, and a second radiation-transmissive plate 28b, which is provided as a window in a second intermediate wall 16b of the oven 10.
  • the two intermediate walls 16a, 16b and, accordingly, the two radiation-permeable plates 28a, 28b are located on opposite sides of the cooking space 12.
  • the optical sensor system 30 has a radiation source 34.
  • the radiation source 34 is designed, for example, as a light-emitting diode (group) or white light LED and emits light in the visible wavelength range or infrared light.
  • the optical sensor system 30 has a radiation detector 36.
  • the radiation detector 36 is designed, for example, as a photodiode, photoresistor or CCD chip and can detect electromagnetic radiation in the wavelength range of the radiation emitted by the radiation source 34.
  • the radiation detector 36 detects the radiation emitted by the radiation source 34 and transmitted through the first radiation-transparent plate 28a in the first intermediate wall 16a and then passed through the cooking chamber 12 and finally transmitted through the second radiation-transparent plate 28b in the second intermediate wall 28b.
  • the radiation intensity of the detected radiation is evaluated.
  • the intermediate walls 16a, 16b and the plates 28a, 28b provided therein are also contaminated to different degrees, which affects the transmittance of the two plates 28a, 28b and the scatter on the two plates 28a, 28b. The more the cooking chamber 12 and the two plates 28a, 28b are soiled, the less radiation reaches the radiation detector 36 from the radiation source 34.
  • the optical sensor system 30 has a radiation-transmissive plate 28, which is provided as a window in the intermediate wall 16 of the oven 10. Behind this radiation-permeable plate 28, ie on its side facing away from the cooking chamber 12, the optical sensor system 30 has a radiation source 34 and a radiation detector 36.
  • the radiation source 34 is designed, for example, as light-emitting diodes (group) and emits light in the visible wavelength range or infrared light.
  • the radiation detector 36 is designed, for example, as a photodiode or CCD chip and can detect electromagnetic radiation in the wavelength range of the radiation emitted by the radiation source 34.
  • the radiation detector 36 detects the radiation emitted by the radiation source 34 and reflected on the radiation-permeable plate 28 in the intermediate wall 16, in particular on its side facing the cooking chamber 12.
  • the radiation intensity and / or the detection location of the detected radiation can be evaluated.
  • the intermediate wall 16 and the plate 28 provided therein are also contaminated to different degrees, which influences the degree of reflection on the plate 28. The more the cooking chamber 12 and the plate 28 are soiled, the more radiation is reflected back from the soiled side of the plate 28 in the direction of the radiation detector 36.
  • the optical sensor system 30 has a radiation-transmissive plate 28, which is provided as a window in the intermediate wall 16 of the oven 10, and a radiation reflector 38, which is provided on a device wall 14 opposite the intermediate wall 16 or the plate 28.
  • the optical sensor system 30 has a radiation source 34 and a radiation detector 36.
  • the radiation source 34 is designed, for example, as light-emitting diodes (group) and emits light in the visible wavelength range or infrared light.
  • the radiation detector 36 is, for example, as Designed photodiode or CCD chip and can detect electromagnetic radiation in the wavelength range of the radiation emitted by the radiation source 34.
  • the radiation detector 36 detects the radiation emitted by the radiation source 34, transmitted through the radiation-permeable plate 28 in the intermediate wall 16 and passed through the cooking chamber 12, then reflected at the radiation reflector 38 on the appliance wall 14 and returned through the cooking chamber 12, and finally, radiation transmitted again through the radiation-transmissive plate 28 in the intermediate wall 28.
  • the radiation intensity of the detected radiation is evaluated.
  • the walls 14, 16 and the plate 28 and the radiation reflector 38 are also contaminated to different degrees, which influences the degree of transmission of the plate 28 and the degree of reflection of the radiation reflector 38. The more the cooking chamber 12, the plate 28 and the radiation reflector are contaminated, the less radiation is reflected back from the contaminated radiation reflector 38 through the plate 28 to the radiation detector 36.
  • Fig. 5 differs from that in Fig. 2 illustrated example in particular in that, instead of the radiation-permeable plate 28 in the first intermediate wall 16a, a lamp cover 29 is provided for lighting of the cooking space 12 which is already present in the household appliance, and the light source 40 of this lighting serves as a radiation source.
  • the lamp cover 29 is basically sufficiently temperature-resistant and leakproof, so that no adjustments need to be made in this regard for the optical sensor system 30. Otherwise, the optical sensor system 30 and its mode of operation correspond to the example in FIG Fig. 2 .
  • Fig. 6 differs from that in Fig. 3 illustrated example in particular in that instead of the radiation-transmissive plate 28 in the intermediate wall 16 a lamp cover 29 is provided for lighting of the cooking space 12 which is already present in the household appliance.
  • the lamp cover 29 is basically sufficiently temperature-resistant and leakproof, so that no adjustments need to be made in this regard for the optical sensor system 30.
  • the radiation source 34 and the radiation detector 36 are arranged next to the light source 42 of the lighting behind this lamp cover 29. Otherwise, the optical sensor system 30 and its mode of operation correspond to the example in FIG Fig. 3 .
  • Fig. 7 differs from that in Fig. 5 illustrated example in particular in that the light source 42 of the lighting does not serve as the radiation source of the optical sensor system, but rather that the radiation source 34 (for example a laser diode) of the optical sensor system 30 is arranged next to this lighting behind the lamp cover 29. Otherwise, the optical sensor system 30 and its mode of operation correspond to the example in FIG Fig. 5 .
  • the radiation detector 36 e.g. linear CCD sensor or precisely positioned color sensor
  • the radiation detector 36 can also detect a wavelength spectrum, for example, since contamination absorbs different wavelengths differently or reflected, so that the absence of a certain wavelength in the detected radiation can be an indication of contamination.
  • a UV lamp can also be used as the radiation source in order, for example, to detect luminescent bacteria, for example in a refrigerator, by means of a corresponding radiation detector.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electric Ovens (AREA)

Claims (11)

  1. Appareil domestique électronique (10), comprenant :
    un espace de traitement (12) destiné à traiter des articles, l'espace de traitement (12) étant au moins partiellement délimité par au moins une paroi (14, 16) ; et
    un système de capteur optique (30) destiné à détecter un degré réel d'encrassement de l'espace de traitement (12) est prévu sur au moins une paroi (16) de l'espace de traitement (12), le système de capteur optique (30) comportant au moins une source de rayonnement (34, 40) destinée à émettre un rayonnement électromagnétique et au moins un détecteur de rayonnement (36) destiné à détecter un rayonnement électromagnétique, la paroi (16) comportant au moins une plaque (28, 29) qui est au moins partiellement transparente au rayonnement électromagnétique utilisé par le système de capteur optique (30) et qui est au moins partiellement exposée à un encrassement lorsque l'appareil domestique électronique (10) est utilisé, et la source de rayonnement (34, 40) et le détecteur de rayonnement (36) étant disposés du même côté de la plaque (28, 29) transparente au rayonnement, caractérisé en ce que
    un réflecteur de rayonnement (38) est prévu dans/sur l'espace de traitement (12) en face de la plaque (28, 29) transparente au rayonnement ; et
    le détecteur de rayonnement (36) détecte un rayonnement électromagnétique émis par la source de rayonnement (34, 40), transmis par la plaque (28, 29) transparente au rayonnement et réfléchi par le réflecteur de rayonnement (38) et retransmis par la plaque (28, 29) transparente au rayonnement.
  2. Appareil domestique électrique selon la revendication 1, comprenant en outre un dispositif de sortie (26) destiné à délivrer à un utilisateur de l'appareil domestique électronique (10) une information concernant un besoin de nettoyage de l'espace de traitement (12) sur la base du degré d'encrassement détecté par le système de capteur optique (30).
  3. Appareil domestique électronique selon la revendication 1 ou 2, comprenant en outre un dispositif autonettoyant (32) destiné à nettoyer automatiquement l'espace de traitement (12).
  4. Appareil domestique électronique selon la revendication 3, comprenant en outre une commande (22) destinée à commander le dispositif autonettoyant (32) en fonction du degré d'encrassement détecté par le système de capteur optique (30) et/ou d'une instruction de nettoyage entrée par l'utilisateur de l'appareil domestique électronique (10) par le biais d'un dispositif de commande (24).
  5. Appareil domestique électronique selon l'une des revendications précédentes, l'au moins une plaque (28) transparente au rayonnement étant une fenêtre ménagée dans la paroi (16) de l'espace de traitement (12).
  6. Appareil domestique électronique selon l'une des revendications précédentes, l'au moins une plaque (29) transparente au rayonnement étant un capot de lampe d'un moyen d'éclairage de l'espace de traitement (12).
  7. Appareil domestique électronique selon l'une des revendications précédentes, le détecteur de rayonnement (36) étant conçu pour détecter une intensité, une longueur d'onde, un spectre de longueurs d'onde, un emplacement de détection et/ou une distribution d'emplacements de détection du rayonnement électromagnétique.
  8. Appareil domestique électronique selon l'une des revendications précédentes, la source de rayonnement (34, 40) étant conçue pour émettre de la lumière visible, de la lumière laser, un rayonnement infrarouge ou un rayonnement UV d'au moins une longueur d'onde.
  9. Appareil domestique électronique selon l'une des revendications précédentes, comprenant en outre un dispositif de commande (24) qui permet à un utilisateur de l'appareil domestique électronique (10) d'activer ou de désactiver au choix le système de capteur optique (30) .
  10. Appareil domestique électronique selon l'une des revendications précédentes,
    le système de capteur optique (30) étant conçu ou pouvant être commandé pour déterminer le degré réel d'encrassement de l'espace de traitement (12) à intervalles réguliers, après chaque utilisation de l'espace de traitement (12) et/ou lors de l'activation par un utilisateur de l'appareil domestique électronique (10).
  11. Appareil domestique électronique selon l'une des revendications précédentes, le système de capteur optique (30) étant conçu pour déterminer le degré réel d'encrassement de l'espace de traitement (12) en plusieurs points de l'espace de traitement (12).
EP17001761.0A 2017-10-25 2017-10-25 Appareil électroménager Active EP3477205B1 (fr)

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Application Number Priority Date Filing Date Title
EP17001761.0A EP3477205B1 (fr) 2017-10-25 2017-10-25 Appareil électroménager

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Application Number Priority Date Filing Date Title
EP17001761.0A EP3477205B1 (fr) 2017-10-25 2017-10-25 Appareil électroménager

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EP3477205A1 EP3477205A1 (fr) 2019-05-01
EP3477205B1 true EP3477205B1 (fr) 2020-04-22

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019213485A1 (de) * 2019-09-05 2021-03-11 BSH Hausgeräte GmbH Haushalts-Mikrowellengerät mit Mikrowellendom
DE102020126930B4 (de) * 2020-10-14 2024-10-17 Miele & Cie. Kg Verfahren zur Bestimmung des Zeitpunktes für die Reinigung eines Garraums eines Gargeräts

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
FR2777345B1 (fr) 1998-04-10 2000-06-30 Europ Equip Menager Systeme d'evaluation de l'etat de salissures de la cavite d'un four
DE10128024B4 (de) * 2001-06-08 2006-07-06 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
DE102008025294B4 (de) 2008-05-27 2012-06-21 Rational Ag Verfahren zum Reinigen eines Garraums
KR20110011817A (ko) * 2009-07-29 2011-02-09 엘지전자 주식회사 오염 감지부를 포함한 오븐 레인지
DE102012218002A1 (de) * 2012-10-02 2014-04-03 BSH Bosch und Siemens Hausgeräte GmbH Gargerät und Verfahren zum Betreiben eines Gargeräts
WO2014102074A1 (fr) * 2012-12-26 2014-07-03 Arcelik Anonim Sirketi Four à pyrolyse
DE102014217636A1 (de) 2014-09-03 2016-03-03 BSH Hausgeräte GmbH Betreiben eines Speisenbehandlungsgeräts
DE102014116709A1 (de) * 2014-11-14 2016-05-19 Rational Aktiengesellschaft Gargerät sowie Verfahren zur Bestimmung des Verschmutzungsgrades eines Gargeräts

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Title
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