EP3745031A1 - Appareil de cuisson, comprenant un espace de cuisson et un catalyseur pour traiter l'air d'évacué de l'espace de cuisson, ainsi que procédé de fonctionnement d'un tel appareil de cuisson - Google Patents

Appareil de cuisson, comprenant un espace de cuisson et un catalyseur pour traiter l'air d'évacué de l'espace de cuisson, ainsi que procédé de fonctionnement d'un tel appareil de cuisson Download PDF

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Publication number
EP3745031A1
EP3745031A1 EP20174290.5A EP20174290A EP3745031A1 EP 3745031 A1 EP3745031 A1 EP 3745031A1 EP 20174290 A EP20174290 A EP 20174290A EP 3745031 A1 EP3745031 A1 EP 3745031A1
Authority
EP
European Patent Office
Prior art keywords
cooking
movable element
exhaust air
catalyst
cooking appliance
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.)
Withdrawn
Application number
EP20174290.5A
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German (de)
English (en)
Inventor
Patrick Ribbe
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 EP3745031A1 publication Critical patent/EP3745031A1/fr
Withdrawn legal-status Critical Current

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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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes

Definitions

  • the invention relates to a cooking appliance, comprising a cooking space and a catalyst for treating exhaust air from the cooking space, according to the preamble of claim 1 and a method for operating such a cooking appliance.
  • the DE 197 06 186 A1 a cooking device designed as an oven and a method for its operation.
  • the baking oven known therefrom has a cooking space which has at least one heating element for heating, a temperature sensor, an exhaust air opening and a catalyst in or in connection with the exhaust air opening.
  • the known baking oven also has an electronic control and evaluation device and a device for pyrolysis cleaning. At least one catalytic converter heater and one temperature sensor are assigned to the catalytic converter.
  • the known baking oven also has a circuit arrangement for smoke limitation in connection with the electronic control and evaluation device.
  • the invention thus poses the problem of improving a cooking device comprising a cooking space and a catalyst for treating exhaust air from the cooking space, as well as a method for operating such a cooking device.
  • a cooking device with the features of claim 1, which is characterized in that the cooking device has a device with a movable element, the catalyst being arranged on the movable element and the movable element in a catalyst layer by means of the device of the movable element can be transferred, and wherein the catalyst is arranged in the catalyst layer of the movable element in the exhaust air path of the exhaust air.
  • the advantage that can be achieved with the invention is in particular that the cooking appliance, comprising a cooking chamber and a catalyst for treating exhaust air from the cooking chamber, and a method for operating such a cooking appliance are improved.
  • the device and the movable element of the device possible to transfer the catalyst into the exhaust air route if necessary. Accordingly, if a catalytic treatment of the exhaust air discharged from the cooking space is not necessary, the catalytic converter can be removed from the exhaust air path, so that the pressure loss generated by the catalytic converter can be avoided. It is thus possible, for example, in this case to discharge the exhaust air from the cooking chamber with less expenditure of energy and time.
  • the movable element of the device can be designed, for example, as a flap or as a slide.
  • the cooking device according to the invention can be designed as an oven or as a combination device with an oven or the like.
  • the movable element of the device can be moved manually, for example by a user of the cooking appliance.
  • the user can thus decide for himself whether the catalytic converter for the catalytic treatment of the exhaust air should be transferred from the cooking chamber into the exhaust air path or not.
  • An advantageous development of the cooking appliance according to the invention provides that the movable element can be moved semi-automatically and / or fully automatically by means of a drive of the device. This increases the user comfort. Furthermore, this effectively prevents possible incorrect operation by the user.
  • the movable element would, for example in response to user intervention by a user, be automatically transferred by means of the drive into the position selected by means of the user intervention.
  • the user intervention can involve pressing a button or the like on a user interface of the cooking appliance.
  • the moveable element would be automatically transferred into the position specified in the automatic program by means of the drive, for example by means of a previously selected and started automatic program, that is to say without further explicit user intervention.
  • the catalyst is designed and arranged in such a way that it essentially completely covers a free cross section of the exhaust air path of the exhaust air in the catalyst position of the movable element. In this way, the catalytic effectiveness of the catalytic converter is maximized, since the exhaust air from the cooking chamber has to flow essentially completely through the catalytic converter.
  • the movable element is additionally moved to a cooling position, in which the free cross section of the exhaust air path is essentially free, and / or in a closed position, in which the free cross section of the exhaust air path by means of the device movable element is essentially blocked, and / or can be transferred into a bypass position in which the free cross section of the exhaust air path is partially free by means of the movable element.
  • a cooling position in which the free cross section of the exhaust air path is essentially free
  • a closed position in which the free cross section of the exhaust air path by means of the device movable element is essentially blocked, and / or can be transferred into a bypass position in which the free cross section of the exhaust air path is partially free by means of the movable element.
  • the aforementioned cooling position is useful, for example, when it is desired to cool the cooking space as quickly as possible.
  • the closed position is useful, for example, for so-called browning cooking in the cooking space of the cooking appliance.
  • the bypass position is advantageous for normal cooking in the cooking space of the cooking device according to the invention.
  • the catalytic position of the movable element of the device is only required for a catalytic treatment of the exhaust air from the cooking space, for example in a pyrolysis operation of a cooking device according to the invention equipped as a pyrolysis device.
  • a flow through the catalyst with the exhaust air from the cooking space is rather not useful, because, for example, due to the catalyst, adulterated odors during a cooking process in the cooking space of the invention Cooking device can come.
  • the movable element has a bypass opening, the bypass position being able to be implemented by means of the bypass opening.
  • the bypass layer is made possible in a structurally particularly simple manner.
  • the space requirement for the device is further reduced as a result.
  • the arrangement of the catalytic converter on the movable element can be freely selected within wide suitable limits.
  • Another advantageous development of the cooking appliance according to the invention provides that the catalyst is designed as an integral part of the movable element. As a result, the movable element with the catalyst arranged thereon is implemented in a particularly robust and space-saving manner.
  • the cooking device comprises a catalyst heater, the catalyst heater being designed and arranged in such a way that the catalyst in the catalyst position of the movable element can be heated by means of the catalyst heater. In this way the effectiveness of the catalyst is improved.
  • the cooking device has at least one cooking device functional unit for performing a cooking device function, the cooking device functional unit depending on the position of the movable element can be controlled by means of a controller of the cooking appliance.
  • a cooking device functional unit designed as a catalyst heater for heating the catalyst can be switched on and off automatically by means of the control of the cooking device depending on the position of the movable element and thus depending on the position of the catalyst.
  • An advantageous development of the method according to the invention provides that the drive of the device is controlled as a function of an automatic program of the cooking device by means of the control of the cooking device. This further increases the ease of use for a user of the cooking appliance according to the invention. Furthermore, any operating errors by a user are effectively prevented. In this way, it is possible in this way to automatically transfer the movable element of the device, for example when executing a pyrolysis operation of a cooking device according to the invention designed as a pyrolysis device, into the catalytic position, so that the catalyst is automatically discharged into the exhaust air path by means of the control of the cooking device is arranged in the cooking space.
  • the cooking appliance 2 is designed as a baking oven, which comprises a cooking chamber 4, an exhaust air path 6 that connects the cooking chamber 4 with the free environment in a flow-conducting manner, and a catalyst 8 for treating exhaust air flowing through the exhaust air path 6 from the cooking chamber 4.
  • the exhaust air and its direction of flow are in the Fig. 2 symbolized by arrows 10.
  • the exhaust air path 6 is connected to the cooking chamber 4 in a flow-conducting manner by means of an exhaust air opening 11.
  • the exhaust air opening 11 is arranged in the present exemplary embodiment in a rear wall of a housing of the cooking appliance 2 that delimits the cooking space 4.
  • other arrangements of the exhaust air opening 11 and thus of the exhaust air path 6 are also conceivable, as can be seen, for example, from the prior art mentioned in the introduction to the description.
  • the cooking appliance 2 has a device 12 with a movable element 14 designed as a slide, the catalyzer 8 being arranged on the movable element 14 and the movable element 14 by means of the device 12 in a Fig. 2
  • the catalytic converter layer shown of the movable element 14 can be transferred, and the catalytic converter 8 is arranged in the catalytic converter layer of the movable element 14 in the exhaust air path 6 of the exhaust air 10.
  • the movable element 14 can be moved semi-automatically and fully automatically by means of a drive 16 of the device 12.
  • the catalytic converter 8 is designed as an integral part of the movable element 14; see in particular the Fig. 2 .
  • the device 12 with the movable element 14 and the catalytic converter 8 is designed and arranged in the present exemplary embodiment in such a way that the catalytic converter 8 essentially completely covers a free cross section of the exhaust air path 6 of the exhaust air 10 in the catalytic converter position of the movable element 14. Accordingly, essentially all of the exhaust air 10 conveyed from the cooking space 4 in the catalytic converter position of the movable element 14 must flow through the catalytic converter 8.
  • the cooking appliance 2 has a fan 17 arranged in the flow direction of the exhaust air 10 behind the catalytic converter 8 in the catalytic converter position of the movable element 14.
  • a cooking device functional unit 18 designed as a catalyst heater is arranged in the exhaust air path 6 of the cooking appliance 2, the catalyst heater 18 being designed and arranged such that the catalyst 8 in the Fig. 2
  • the illustrated catalytic converter position of the movable element 14 can be heated by means of the catalytic converter heater 18.
  • the catalyst heater 18 is connected upstream of the catalyst 8 in the direction of flow of the exhaust air 10 in the catalyst position of the movable element 14; see also Fig. 2 .
  • a filter 20 is arranged in front of the catalyst heater 18 in the flow direction of the exhaust air 10. See also the Fig. 2 .
  • the movable element 14, designed as a slide, of the device 12 is in the Fig. 3 shown in a front view. As can be seen therefrom, a bypass opening 22 and two catalyst openings 24 are formed in the movable element 14 of the device 12. See also the Fig. 2 . In a bypass position, not shown, of the movable element 14, in which the free cross section of the exhaust air path 6 is partially free by means of the movable element 14, the free cross section of the exhaust air path 6, namely the exhaust air opening 11, except for the bypass opening 22, is through the movable element 14 of the device 12 essentially tightly closed.
  • the catalyst openings 24 of the movable element 14 are formed opposite one another on the movable element 14, the catalyst 8 being arranged between the two catalyst openings 24. See in particular the Fig. 2 .
  • the free cross section of the exhaust air path 6, namely the exhaust air opening 11 is essentially completely covered by the catalytic converter 8 in the catalytic converter position of the movable element 14. See the Fig. 2 .
  • a portion of the movable member 14, which is shown in the Fig. 3 is arranged between the bypass opening 22 and the two catalyst openings 24 of the movable element 14 of the device 12, has no opening and is designed and arranged in such a way that the free cross section of the exhaust air path 6, namely the exhaust air opening 11, by means of this section of the movable element 14 can be closed substantially completely and tightly in a closed position of the movable element 14 of the device 12. See the Fig. 3 , in which the closed position of the movable element 14 is shown. In the illustrated closed position, this section of the movable element 14 is located directly above the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking chamber 4, which is in the Fig. 3 is represented by a dashed line.
  • the device 12 with the movable element 14 is also designed and arranged such that the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking chamber 4, is essentially free in a cooling position (not shown) of the movable element 14, i.e. not by means of the movable element Element 14 of the device 12 is blocked.
  • the movable element 14 is thus by means of the device 12, namely by means of the drive 16, in the Fig. 2 Catalyst layer shown, into the cooling layer, not shown, in which the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking chamber 4, is essentially free, in which in the Fig. 3
  • the cooking device 2 is in an operating state for a normal cooking process in the cooking space 4 of the cooking device 2.
  • the movable element 14 of the device 12 is automatically switched to not by means of the drive 16 depending on a preselected automatic program, namely for a normal cooking process Bypass position shown has been transferred.
  • the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking chamber 4 is thus blocked, except for the bypass opening 22, by the movable element 14 designed as a slide.
  • the movable element 14 of the device 12 would be automatic by means of the drive 16 depending on the previously selected automatic program, namely for browning cooking in the in the Fig. 3 shown closed position has been transferred.
  • the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking space 4, would be completely and essentially tightly blocked by the movable element 14 designed as a slide.
  • the cooking space 4 should be cooled down as quickly as possible.
  • a "rapid cooling" program step is provided in each case.
  • the drive 16 of the device 12 is controlled depending on the respective automatic program of the cooking device 2 by means of a control of the cooking device 2, not shown, in such a way that the movable element 14 of the device 12 is automatically moved to the cooling position, also not shown, by means of the drive 16 is transferred, in which the free cross section of the exhaust air path 6, namely the exhaust air opening 11 of the cooking space 4, is essentially free.
  • the free cross section of the exhaust air path 6 is therefore no longer blocked by the movable element 14 of the device 12.
  • the cooking device 2 which is designed as an oven, is to be thoroughly cleaned, for example by means of pyrolysis.
  • a user who is not shown selects, for example in the manner already explained above, an automatic program “pyrolysis cleaning” by means of the user interface of the cooking appliance 2, which is not shown.
  • the cooking device function unit 18 designed as a catalyst heater is automatically controlled by means of the control of the cooking device 2, not shown, for performing the cooking device function designed as exhaust air heating depending on the position of the movable element 14 of the device 12. Accordingly, the catalyst heater 18 is in the transfer of the movable element 14 of the device 12 in its Fig.
  • the cooking device 2 has at least one cooking device function unit 18 for performing a cooking device function,
  • the cooking device functional unit 18 can be controlled automatically by means of the control of the cooking device 2 as a function of the position of the movable element 14.
  • the cooking appliance according to the invention and the method according to the invention are not limited to the present exemplary embodiment.
  • the invention can also be used advantageously in other types of cooking appliances with a cooking space.
  • the invention can be used both for the household appliance sector and for the commercial sector, that is to say for professional use.
  • the cooking device is not absolutely necessary for the cooking device to be designed as a pyrolysis device.
  • the structural design of the device and in particular of the movable element of the device can be freely selected within wide suitable limits. Accordingly, the invention can advantageously be used for a large number of different applications.
  • the catalytic converter does not have to be an integral part of the movable element.
  • the catalytic converter it is possible for the catalytic converter to be arranged releasably or non-releasably only on the movable element.
  • the catalytic converter can be replaced on site, for example by a customer service technician, using simple means.
  • the catalytic converter can also be in contact with the exhaust air conveyed from the cooking chamber in some other way in the exhaust air path. Accordingly, an arrangement directly on the exhaust air opening of the cooking chamber is not absolutely necessary.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Electric Stoves And Ranges (AREA)
EP20174290.5A 2019-05-27 2020-05-13 Appareil de cuisson, comprenant un espace de cuisson et un catalyseur pour traiter l'air d'évacué de l'espace de cuisson, ainsi que procédé de fonctionnement d'un tel appareil de cuisson Withdrawn EP3745031A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019114093.5A DE102019114093A1 (de) 2019-05-27 2019-05-27 Gargerät, umfassend einen Garraum und einen Katalysator zur Behandlung einer Abluft aus dem Garraum, sowie Verfahren für den Betrieb eines derartigen Gargeräts

Publications (1)

Publication Number Publication Date
EP3745031A1 true EP3745031A1 (fr) 2020-12-02

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Application Number Title Priority Date Filing Date
EP20174290.5A Withdrawn EP3745031A1 (fr) 2019-05-27 2020-05-13 Appareil de cuisson, comprenant un espace de cuisson et un catalyseur pour traiter l'air d'évacué de l'espace de cuisson, ainsi que procédé de fonctionnement d'un tel appareil de cuisson

Country Status (2)

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EP (1) EP3745031A1 (fr)
DE (1) DE102019114093A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754811U (fr) * 1980-09-11 1982-03-31
DE19706186A1 (de) 1997-02-17 1998-08-20 Miele & Cie Backofen und Verfahren zur Steuerung eines Pyrolysereinigungsvorganges
DE19907554A1 (de) * 1999-02-22 2000-08-31 Bsh Bosch Siemens Hausgeraete Katalysator für einen Backofen
DE102017103392A1 (de) * 2017-02-20 2018-08-23 Miele & Cie. Kg Gargerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3112760A1 (fr) * 2015-07-02 2017-01-04 Electrolux Appliances Aktiebolag Système de fermeture d'échappement pour un four de cuisson

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754811U (fr) * 1980-09-11 1982-03-31
DE19706186A1 (de) 1997-02-17 1998-08-20 Miele & Cie Backofen und Verfahren zur Steuerung eines Pyrolysereinigungsvorganges
DE19907554A1 (de) * 1999-02-22 2000-08-31 Bsh Bosch Siemens Hausgeraete Katalysator für einen Backofen
DE102017103392A1 (de) * 2017-02-20 2018-08-23 Miele & Cie. Kg Gargerät

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DE102019114093A1 (de) 2020-12-03

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