WO2015110382A1 - Appareil de cuisson - Google Patents

Appareil de cuisson Download PDF

Info

Publication number
WO2015110382A1
WO2015110382A1 PCT/EP2015/050877 EP2015050877W WO2015110382A1 WO 2015110382 A1 WO2015110382 A1 WO 2015110382A1 EP 2015050877 W EP2015050877 W EP 2015050877W WO 2015110382 A1 WO2015110382 A1 WO 2015110382A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing device
cooking appliance
door
muffle
appliance according
Prior art date
Application number
PCT/EP2015/050877
Other languages
German (de)
English (en)
Inventor
Markus Kuchler
Helin WEINGARTNER
Markus De Vries
Original Assignee
BSH Hausgeräte GmbH
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 BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2015110382A1 publication Critical patent/WO2015110382A1/fr

Links

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
    • H05B6/76—Prevention of microwave leakage, e.g. door sealings
    • H05B6/763—Microwave radiation seals for doors
    • 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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/021—Doors specially adapted for stoves or ranges sealings for doors or transparent panel

Definitions

  • the present invention relates to a cooking appliance.
  • the cooking appliance is in particular a household appliance.
  • Cooking appliances such as ovens can have a door for closing a cooking chamber.
  • the door can be sealed against a muffle of the oven by means of a seal. In this way, leakage of vapors from the oven can be prevented. In this way, on the one hand unwanted formation of steam and odor in the kitchen can be avoided and on the other hand can be prevented by preventing a significant volume flow from the oven to the outside that the cooking processes are disturbed in the oven.
  • the door of microwave combination ovens should additionally meet the demand for good microwave sealing. Furthermore, in such combination devices, an increased temperature resistance of the sealing material may be required, which may be up to 300 ° C in the case of devices with pyrolytic self-cleaning.
  • an object of the present invention is to provide an improved cooking appliance.
  • a cooking appliance in particular a microwave combination baking oven, proposed with a magnetron for generating microwaves, wherein the cooking appliance comprises a muffle for receiving food, a door for closing the muffle, arranged between the muffle and the door electrically conductive sealing means and a Includes microwave trap.
  • the sealing device is arranged in a propagation direction of the microwaves in front of the microwave trap.
  • the muffle can also be referred to as a receiving area of the cooking appliance.
  • the muffle has a cuboid shape.
  • the muffle has a bottom, a cover arranged opposite the bottom, a rear wall arranged opposite the door, and two side walls arranged opposite one another.
  • the muffle may in particular be made of a steel sheet.
  • the fact that the microwave trap is arranged in the propagation direction of the microwaves after the sealing device, the door can be very compact.
  • both the microwave trap and the sealing device are provided on the door.
  • the sealing device generates a pre-attenuation of the microwave radiation, while the particular geometrically defined microwave trap causes a subsequent attenuation.
  • the microwave trap Due to the sequence of the pre-damping element, that is, the sealing device, and the Nachdämpfungselements, that is, the microwave trap, the microwave trap can be located far out on a door bottom of the door. As a result, a shorter overlap area between the door and muffle flange is possible in comparison to known cooking appliances. In a reverse arrangement, in which the microwave trap is arranged in the direction of propagation of the microwaves in front of the sealing device, the microwave attenuation range is significantly more extensive and the space required by the door becomes larger.
  • the sealing device is designed to be electrically conductive, sparking is prevented to a carrier structure, that is to say to the structure on which the sealing device is arranged, such as the door or the muffle, or to adjacent conductive surfaces. In particular, it can be used to prevent sparking between the door bottom of the door, the sealing device and the muffle flange of the muffle. According to one embodiment, the sealing device is electrically conductively connected to the door or to a muffle flange of the muffle.
  • the sealing device is electrically conductively connected to the door and the muffle flange is electrically insulated from the sealing device, in particular enamelled or painted.
  • the isolation of the Muffelflanschs relative to the sealing device is achieved in that a surface of the Muffelflanschs example, enamelled or painted.
  • the sealing device is electrically conductively connected to the muffle flange and the door is electrically insulated from the sealing device, in particular enamelled or painted.
  • the door is preferably provided with an enamel or lacquer layer.
  • the sealing device is arranged in or on a groove provided on the door or on the muffle flange.
  • the groove preferably runs completely around the door or around the muffle flange.
  • a groove can be provided both on the door and on the muffle flange.
  • provided on the door groove and provided on the muffle groove are arranged opposite to each other.
  • the groove has at least one locking hook, with the aid of which the sealing device can be fixed in or on the groove.
  • the groove has a plurality of opposing pairs of locking hooks.
  • the locking hooks are in particular centrein Published by the Muffelflansch.
  • the locking hooks are elastically deformable.
  • the locking hooks are resilient.
  • the sealing device can be resiliently fastened to or in the groove.
  • the sealing device can be resiliently moved out of the groove and back into it by the resilient attachment with the locking hook.
  • a reliable sealing of a gap provided between the door and the muffle flange is ensured, in particular with a slightly elastic sealing material.
  • the sealing device has an anchor element with the aid of which the sealing device can be connected to the door.
  • the sealing device may alternatively be connectable to the muffle flange by means of the anchor element.
  • the anchor element is arranged in or on the sealing device.
  • the anchor element may be a metal strip which is connected to a support structure, such as the door or the muffle flange by means of welds, screw or rivet joints.
  • the sealing device is preferably electrically conductively connected to the door or to the muffle flange.
  • a spring device is provided by means of which the sealing device is resiliently connected to the door.
  • the sealing device can be resiliently connected to the muffle flange with the aid of the spring device.
  • the sealing device is electrically conductively connected to the door with the aid of the spring device.
  • the sealing device is electrically conductively connected to the muffle flange with the aid of the spring device.
  • the spring device is arranged in particular in the groove.
  • the groove may be provided in or on the door or in or on the muffle flange.
  • the spring device can be an integral part of the sealing device.
  • the sealing device completely revolves around the muffle flange.
  • the sealing device is elastically deformable.
  • the sealing device is elastically deformable.
  • the sealing device may, for example, have a tubular fiberglass jacket in which electrically conductive wires are embedded.
  • the sealing device may for example be made of a tubular metal mesh.
  • the tubular structure of the sealing device may for example be filled with a further material.
  • the further material may be, for example, a silicone material.
  • the microwave trap is a quarter-wave trap.
  • At least one surface of the sealing device is electrically conductive.
  • the sealing device is resistant to high temperatures.
  • high temperature herein is meant a temperature of 300 ° C up to 500 ° C.
  • Further possible implementations of the invention also include not explicitly mentioned combinations of features or embodiments described above or below with regard to the exemplary embodiments. The skilled person will also add individual aspects as improvements or additions to the respective basic form of the invention.
  • FIG. 1 shows a schematic perspective view of an embodiment of a cooking appliance
  • FIG. 2 shows a schematic partial sectional view of a further embodiment of the cooking appliance according to FIG. 1
  • FIG. 1 shows a schematic perspective view of an embodiment of a cooking appliance
  • FIG. 3 shows a further schematic partial sectional view of the embodiment of the cooking appliance according to FIG. 2;
  • FIG. 4 shows a schematic partial sectional view of a further embodiment of the cooking appliance according to FIG. 1;
  • FIG. 5 shows a further schematic partial sectional view of the embodiment of the cooking appliance according to FIG. 4;
  • FIG. 6 shows a schematic partial sectional view of a further embodiment of the cooking appliance according to FIG. 1
  • FIG. 7 shows a schematic partial sectional view of a further embodiment of the cooking appliance according to FIG. 1
  • FIG. FIG. 8 shows a schematic partial sectional view of a further embodiment of the cooking appliance according to FIG. 1;
  • FIG. 9 shows a further schematic partial sectional view of the embodiment of the cooking appliance according to FIG. 8.
  • FIG. 1 shows a schematic perspective view of a cooking device 1.
  • the cooking appliance 1 has a magnetron 2 for generating microwaves.
  • the cooking appliance 1 further has a cooking chamber 3, which is enclosed by a muffle 4 of the cooking appliance 1, and a door 5 for closing the cooking chamber 3.
  • the muffle 4 has in particular a cuboid geometry.
  • a muffle flange 6 of the muffle 4 is provided on the front side.
  • the door 5 may be pivotally mounted on the muffle flange 6.
  • the cooking appliance 1 is preferably a household appliance.
  • the cooking appliance 1 is a microwave combination baking oven.
  • FIGS. 2 and 3 each show schematic detail sectional views of the cooking appliance 1.
  • the door 5 preferably has a door bottom 7, which is made in particular of a metal sheet on.
  • an electrically conductive sealing device 8 is provided between the muffle 4, in particular between the muffle flange 6, and the door 5, between the muffle 4, in particular between the muffle flange 6, and the door 5, an electrically conductive sealing device 8 is provided.
  • at least one surface 9 of the sealing device 8 is electrically conductive.
  • the sealing device 8 is preferably resistant to high temperatures. By “high temperature resistant” are meant temperatures of 300 ° C up to 500 ° C in the present case.
  • the sealing device 8 may be, for example, a glass fiber fabric tube, are woven into the conductive fibers. Furthermore, the sealing device 8 may be a metal mesh tube.
  • the sealing device 8 may be formed as a tubular hollow body. Furthermore, the tubular hollow body may be filled, for example, with a silicone material.
  • the sealing device 8 is in particular elastically deformable. That is, when the sealing device 8 is compressed, it undergoes a reversible change in geometry. In particular, the sealing device 8 elastic properties on. That is, after deforming the sealing device 8, it automatically springs back to its original shape.
  • the cooking appliance 1 further has a microwave trap 10, which is in particular adapted to prevent the escape of microwaves from the cooking chamber 3.
  • the microwave trap 10 is in particular a so-called lambda quarter trap.
  • the door 5 may comprise the microwave trap 10.
  • the microwave trap 10 may be provided on the muffle flange 6.
  • the sealing device 8 is arranged in a propagation direction A of the microwaves in front of the microwave trap 10.
  • the sealing device 8 thus forms a pre-damping zone
  • the sealing device 8 is preferably electrically conductively connected to the door 5. Alternatively, the
  • Sealing device 8 be electrically connected to the muffle 6.
  • the sealing device 8 is arranged in or on a groove 5 provided on the door groove 13.
  • the groove 13 may be provided on the muffle flange 6.
  • Sealing device 8 preferably completely surrounds the muffle flange 6.
  • the groove 13 rotates completely around the muffle flange 6.
  • FIG. 2 shows the sealing device 8 in an unloaded state. That is, the door 5 is open or not completely closed.
  • FIG. 3 shows the sealing device 8 in a loaded state, in which the muffle flange 6 rests against the sealing device 8.
  • Fig. 3 shows the door 5 in a closed state.
  • the sealing device 8 is elastically deformed.
  • the sealing device 8, as described above resilient properties, whereby always a good system of the sealing device 8 is ensured on the muffle 6.
  • a gap S is provided between the door 5 and the muffle 6, a gap S is provided. The sealing device 8 can protrude into the gap S.
  • the sealing device 8 is preferably electrically conductively connected to the door 5.
  • the muffle flange 6 is electrically insulated from the sealing device 8. For electrical insulation of the muffle flange 6, this can be enamelled or painted, for example.
  • the sealing device 8 is electrically conductively connected to the muffle flange 6, the door 5 being electrically insulated from the sealing device 8.
  • the door 5 may in this embodiment in particular enamelled or painted.
  • the door bottom 7 may be made of stainless steel, wherein the sealing device 8 is electrically conductively connected to the metallic bare door bottom 7.
  • the muffle flange 6 opposite the door 5 is preferably enamelled in this embodiment of the cooking appliance 1 and is not electrically conductive on its surface.
  • FIGS. 4 and 5 show a development of the cooking appliance 1 according to FIGS. 1-3.
  • at least one locking hook 14, 15 is provided on the groove 13.
  • two locking hooks 14, 15 are arranged opposite each other.
  • On the groove 13, a plurality of such oppositely arranged pairs of locking hooks 14, 15 may be provided.
  • the locking hooks 14, 15 are preferably elastically deformable.
  • the locking hooks 14, 15 are integrally formed with the door bottom 7 of the door 5.
  • the locking hooks 14, 15 are preferably resiliently deformable.
  • the locking hooks 14, 15 may be provided on the muffle flange 6.
  • FIG. 4 shows the sealing device 8 in an unmounted state.
  • the sealing device 8 is pressed in a mounting direction M in the groove 13.
  • the locking hooks 14, 15 engage in the elastically deformable sealing device 8, as a result of which it is captively fixed in or on the groove 13.
  • the locking hooks 14, 15 a permanent electrical contact of the sealing device 8 with the door 5 is ensured.
  • the locking hooks 14, 15 preferably have elastic properties, these support the sealing device 8 in the gap sealing between the door 5 and the muffle flange 6. This is particularly advantageous in one embodiment of the sealing device 8 with less elastic properties. That is, the locking hooks 14, 15 are adapted to support a resilient movement of the sealing device 8 out of the groove 13 and back into the groove 13.
  • the sealing device 8 of the cooking appliance 1 preferably has an anchor element 16 with the aid of which the sealing device 8 can be connected to the door 5 or alternatively to the muffle flange 6.
  • the anchor member 16 may, for example, a on or in the Seal 8 be arranged sheet metal strip.
  • the anchor element 16 faces away from the gap 5 provided between the door 5 and the muffle flange 6.
  • the anchor element 16 may be connected by means of screws, rivets or a welded connection to the door 5, in particular to the door bottom 7, or to the muffle flange 6.
  • the sealing device 8 is in particular elastic enough to reliably seal the gap S between the door 5 and the muffle flange 6.
  • FIG. 7 shows a further embodiment of the cooking appliance 1.
  • the sealing device 8 may have a spring device 17 which is attached to or in the groove 13.
  • the spring device 17 is preferably fixedly connected to the sealing device 8.
  • an anchor element 16 can be provided on or in the sealing device 8, which is connected to the spring device 17.
  • the spring device 17 is configured so that the sealing device 8 is displaceable into the groove 13 or displaced out of it.
  • a possible mobility of the sealing device 8 is shown in FIG. 7 by means of a double arrow.
  • the sealing device 8 may be largely inflexible. Sufficient gap sealing of the gap S can take place via the spring device 17.
  • the sealing device 8 is resiliently connected to the muffle flange 6 by means of the spring device 17.
  • the sealing device 8 is electrically conductively connected by means of the spring device 17 to the door 5 or to the muffle flange 6.
  • FIGS. 8 and 9 show a development of the cooking appliance 1.
  • the embodiment of the cooking appliance 1 according to FIGS. 8 and 9 differs from the embodiment of the cooking appliance 1 according to FIGS. 2 and 3 only in that a groove 18 of the door 5 arranged opposite the groove 18 is provided on the muffle flange 6.
  • Fig. 8 shows the sealing device 8 in an unloaded
  • Fig. 9 shows the sealing device 8 in a loaded state.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

Appareil de cuisson (1), en particulier four combiné micro-ondes, comportant un magnétron (2) pour générer des micro-ondes. Cet appareil de cuisson (1) comporte un moufle (4) pour recevoir un produit à cuire, une porte (5) pour fermer le moufle (4), un dispositif d'étanchéité (8) électroconducteur situé entre le moufle (4) et la porte (5), et un piège à micro-ondes (10). Le dispositif d'étanchéité (8) est agencé devant le piège à micro-ondes (10), dans une direction de propagation (A) des micro-ondes.
PCT/EP2015/050877 2014-01-27 2015-01-19 Appareil de cuisson WO2015110382A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014201426.3 2014-01-27
DE102014201426.3A DE102014201426A1 (de) 2014-01-27 2014-01-27 Gargerät

Publications (1)

Publication Number Publication Date
WO2015110382A1 true WO2015110382A1 (fr) 2015-07-30

Family

ID=52444260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/050877 WO2015110382A1 (fr) 2014-01-27 2015-01-19 Appareil de cuisson

Country Status (2)

Country Link
DE (1) DE102014201426A1 (fr)
WO (1) WO2015110382A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017122249A1 (de) 2017-09-26 2019-03-28 Homag Gmbh Applikator zum thermischen Aktivieren einer Funktionsschicht eines Beschichtungsmaterials
EP4351277A1 (fr) * 2022-10-07 2024-04-10 Electrolux Appliances Aktiebolag Four de cuisson

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846608A (en) * 1974-02-11 1974-11-05 Litton Systems Inc High temperature resistant door seal for a microwave oven
US4013861A (en) * 1975-08-13 1977-03-22 The Frymaster Corporation Microwave oven door seal
DE2848658A1 (de) * 1977-11-25 1979-05-31 Raytheon Co Mikrowellenherd oder -ofen
EP1923638A1 (fr) * 2005-09-08 2008-05-21 Sharp Kabushiki Kaisha Dispositif de cuisson

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812316A (en) 1973-03-28 1974-05-21 Gen Electric Door seal gasket for combined microwave and self-cleaning oven
GB2122059B (en) * 1982-05-28 1985-08-07 Tdk Electronics Co Ltd An absorber device for microwave leakage
DE10131009C2 (de) * 2001-06-27 2003-07-03 Bsh Bosch Siemens Hausgeraete Haushaltsgerät, insbesondere Backofen
DE102004052798B4 (de) * 2004-11-02 2006-08-31 Electrolux Home Products Corp. N.V. Garofen
DE102010043537A1 (de) * 2010-11-08 2012-05-10 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846608A (en) * 1974-02-11 1974-11-05 Litton Systems Inc High temperature resistant door seal for a microwave oven
US4013861A (en) * 1975-08-13 1977-03-22 The Frymaster Corporation Microwave oven door seal
DE2848658A1 (de) * 1977-11-25 1979-05-31 Raytheon Co Mikrowellenherd oder -ofen
EP1923638A1 (fr) * 2005-09-08 2008-05-21 Sharp Kabushiki Kaisha Dispositif de cuisson

Also Published As

Publication number Publication date
DE102014201426A1 (de) 2015-07-30

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