EP2295869A2 - Dispositif pour une enceinte de cuisson doté d'un élément de chauffage à couche épaisse - Google Patents

Dispositif pour une enceinte de cuisson doté d'un élément de chauffage à couche épaisse Download PDF

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Publication number
EP2295869A2
EP2295869A2 EP10175053A EP10175053A EP2295869A2 EP 2295869 A2 EP2295869 A2 EP 2295869A2 EP 10175053 A EP10175053 A EP 10175053A EP 10175053 A EP10175053 A EP 10175053A EP 2295869 A2 EP2295869 A2 EP 2295869A2
Authority
EP
European Patent Office
Prior art keywords
cooking chamber
cooking
unit
heating element
chamber device
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.)
Granted
Application number
EP10175053A
Other languages
German (de)
English (en)
Other versions
EP2295869A3 (fr
EP2295869B1 (fr
Inventor
Ingo Bally
Alexander Dinkel
Wolfgang Fuchs
Claudia Leitmeyr
Angelika Namberger
Michael Reindl
Klemens Roch
Jens Sauerbrey
Wolfgang Schnell
Matthias Sorg
Günter ZSCHAU
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL10175053T priority Critical patent/PL2295869T3/pl
Publication of EP2295869A2 publication Critical patent/EP2295869A2/fr
Publication of EP2295869A3 publication Critical patent/EP2295869A3/fr
Application granted granted Critical
Publication of EP2295869B1 publication Critical patent/EP2295869B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/166—Shelves, racks or trays inside ovens; Supports therefor with integrated heating means
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to a cooking chamber device according to the preamble of claim 1.
  • the object of the invention is in particular to provide a generic device with improved properties in terms of handling, weight and temperature inertia and to increase ease of use.
  • the invention is based on a cooking chamber device having at least one cooking chamber unit which has at least one heating element.
  • a "cooking unit” should be understood as meaning, in particular, a unit which is intended to be arranged in the cooking chamber during operation of the cooking appliance to achieve a desired cooking result or a desired temperature distribution, in particular food supports, cooking compartment dividers, heating levels or elements which are designed as combinations thereof.
  • a "food support” in this context is to be understood in particular an element that carries a food during direct cooking by a direct contact with this.
  • a "food to be cooked” is to be understood in particular as both a food to be cooked and a food to be cooked in a cooking container specially provided or equipped for cooking food, for example a cooking pot, a roasting pan or a casserole dish.
  • a "cooking space divider” is to be understood as meaning, in particular, an element which is intended to separate the cooking space into at least two subspaces, in particular in a horizontal pitch and in particular for a thermal separation of the at least two subspaces, a thermal insulation and a substantial prevention of mass transfer between the two subspaces may have a sealing element.
  • a "heating level” should be understood to mean, in particular, an element which has at least one heating element which is aligned essentially in one plane, in particular in a horizontal plane.
  • the at least one heating element is at least partially formed as a thick-film element.
  • a "thick-film element" as a heating element is to be understood as meaning, in particular, an electrical resistance element in the form of a layer of a mixture of a carrier material and an electrically conductive material distributed therein, wherein an entire layer structure of a heating element has a height of less than 500 micrometers .
  • heating elements formed as thick-film elements can be produced by applying a thick-film paste by means of a screen-printing method and at least one subsequent firing operation or by applying a layer by plasma spraying.
  • the thick-film element is applied to a carrier of a material which is intended to be temperatures up to at least 800 ° C without irreversible changes in its chemical and / or physical properties.
  • the support may be formed of metal, glass ceramic, glass, ceramic, earthenware or a combination of these materials; but in principle it is also conceivable to use other materials which appear reasonable to the person skilled in the art.
  • the at least one cooking chamber unit is designed with at least one heating element as cooking chamber divider, advantageously the cooking chamber volume can be reduced, energy can be saved by a lower mass to be heated and a short heating time can be achieved.
  • the at least one cooking chamber unit has at least two independently controllable heating elements. In this way, by the least a cooking chamber flexible cooking options, even at different temperatures, are provided.
  • the at least one cooking chamber unit has at least one metallic partial casing, whereby a cooking possibility with a direct contact of food to be cooked on a surface of the cooking chamber unit can be achieved.
  • the cooking chamber device comprises at least one sensing unit, which is provided to determine a temperature of at least a part of the cooking chamber unit.
  • the at least one sensing unit may preferably have a temperature sensor, for example a metal resistance known per se or a thermoelement known per se, which provides a signal dependent on the temperature of its position.
  • a cooking appliance in which the cooking chamber device is used, has a sensing unit which is provided to determine the temperature of at least a part of the cooking chamber unit by determining a temperature-dependent resistance of the at least one heating element.
  • the at least one cooking chamber unit has at least one outwardly curved surface
  • a liquid emerging from a food to be cooked during a cooking process in particular in the case of direct contact of the cooking product with the cooking chamber unit, can advantageously be derived from a cooking zone.
  • the at least one cooking chamber unit preferably has discharge channels and a collecting volume.
  • the collection volume may be arranged in a region whose temperature during operation is below a mean temperature.
  • the at least one outwardly curved surface can be provided with a coating which is as chemically inert as possible and ensures a good mechanical protection of the surface by a hardness of at least 6.0 according to the Mohs scale.
  • a "central part of the surface” is to be understood as meaning, in particular, the surface of the cooking chamber unit without an edge region which is delimited on one outer side by an edge of the cooking chamber unit and has a width of 25 percent of a total width of the cooking chamber unit.
  • the at least one cooking chamber unit is designed as a brick.
  • a "brick” is to be understood in this context in particular a cooking chamber unit which is equipped in a known manner with a comparatively high compared to conventional Gargutlinin heat capacity, so that when a load with a food a lowering of a temperature of the brick can be kept low , By directly heating a brick, a quick and energy-saving heating can be achieved and a risk of overheating of a heating element in an indirect heating of the brick can be avoided.
  • a cooking appliance in particular an oven, with a cooking chamber, which is closable with a door, and proposed with at least one of the cooking chamber devices described, wherein the cooking appliance has a height adjustment, with which the at least one cooking chamber is adjustable in height in the cooking chamber.
  • the height adjustment device may, for example, comprise mounting and / or guide elements fixed at different heights for changing a height of a cooking chamber element.
  • the height adjustment device for height adjustment of the at least one cooking chamber unit can have at least one element that can be moved substantially in the vertical direction, which is particularly preferably adjustable with a motor-driven drive unit.
  • the cooking appliance has at least two flexible electrical lines for supplying power to the at least one cooking chamber unit.
  • the power supply can advantageously also be achieved with a height adjustment of the at least one cooking chamber unit in a simple manner and a structure of the cooking chamber unit be kept simple.
  • an embodiment of the power supply can be combined by exactly two flexible lines with a coupled with a movement of the door switching element for switching off the power supply, whereby material and installation costs can be saved and at the same time safety requirements can be met easily.
  • the cooking appliance has at least one independently controllable heating element for heating a partial cooking space below a cooking space unit designed as a cooking space divider with two independently controllable heating elements, particularly flexible cooking possibilities can be provided in partial cooking spaces.
  • a heating element integrated in a cooking chamber cover for providing a top heat
  • a heating element integrated in a cooking space for providing a bottom heat in an upper part cooking space above the cooking space unit with the top heat formed by the heating element integrated in the cooking space cover and one through a heating element of the cooking chamber unit formed lower heat to be cooked.
  • a cooking with the bottom heat formed by the heating element integrated in the oven floor and a top heat formed by a heating element of the cooking chamber unit can be made possible.
  • the cooking appliance comprises a control unit which has at least two different operating modes for operating at least two different types of cooking chamber devices, whereby cooking chamber devices of different configuration can advantageously be used in the cooking appliance without having to change the programming of the control unit.
  • a "control unit” is to be understood as meaning in particular a device having a computing unit, a memory unit, an operating program stored therein and / or an application program stored therein.
  • control unit is provided to provide a signal to display the operating modes available for operating the at least one cooking chamber device with a display unit, preferably in preparation for selection by an operator, whereby a simple operation can be provided.
  • the cooking device comprises at least one sensing unit for sensing at least one electrical characteristic of the cooking chamber device, advantageously an automatic detection of one type of cooking chamber device can be achieved.
  • the at least one electrical parameter may consist of an electrical resistance.
  • the at least one sensing unit may be integrally formed with the control unit.
  • control unit evaluates at least one piece of information of the at least one sensing unit in order to define an operating mode for operating a cooking chamber device, whereby a particularly convenient operation of the cooking appliance can be achieved.
  • the at least one information from an electrical parameter, in particular an electrical resistance, exist.
  • the cooking space divider has a substantially plate-like shape of a cuboid and has two arranged in two horizontal cross-sectional planes, independently controllable by independent contacting heating elements 18, 20 on.
  • the heating elements 18, 20 are applied in meandering form on a top 12 and a bottom 14 of a plate 16 made of temperature-resistant glass ceramic as a carrier. This material is known to those skilled in the art from use in electric cooking appliances.
  • the heating elements 18, 20 are formed with the exception of the lead contacts 22 as thick-film elements comprising as electrically conductive constituents in a matrix material unspecified silver and palladium.
  • Each of the heating elements 18, 20 each has an electrical insulating layer 104 below (not shown) and above the thick-film element for producing a safety-related insulation resistance.
  • a temperature sensor 36 is mounted on the top 12 of the plate 16 made of glass ceramic.
  • the cooking space divider comprises a metallic casing formed as a stainless steel casing which forms the outer surface 24 of the cooking space divider.
  • the cooking space divider is equipped with a sealing element 30 ( Fig. 2 ), which is intended, in an operating state in the oven designed as a cooking chamber 40 cooking device 38 a substantial prevention of mass transfer between two formed by the cooking compartment Operagarillon 42, 44 of the cooking chamber 40 to effect.
  • the sealing element 30 is designed to be completely circumferential.
  • electrical contacts of the two heating elements 18, 20 and of the temperature sensor 36 of the sensing unit 34 are contacted in a plug element 32, which is surrounded by the sealing element 30.
  • FIG Fig. 3 A further cooking chamber device with a cooking space unit 46 designed as a contact grill is shown in FIG Fig. 3 shown.
  • the contact grill has a meander-shaped heating element 48 in the form of a thick-layer element, which is provided on a lower side 50 of a stainless steel plate 52 coated with a non-stick material and having a convex surface 54 is applied.
  • the heating element 48 each has an electrical insulating layer, not shown, below and above the thick-film element for producing a safety-related insulation resistance.
  • a temperature sensor 56 likewise designed as a thick-film element with noble metal constituents, is attached. The curvature of the surface 54 is exaggerated for clarity.
  • a central part of the surface 54 of the contact grill has a structure of connected channels 58 in the illustrated view (FIG. Fig. 3 ) which varies between two height planes 60 parallel to the outwardly curved surface 54.
  • On two opposite sides of the contact grill is each equipped with a juice groove 62 so that a liquid emerging during cooking from a food product is removed from a contact area between the food and surface 54 and in the juice grooves 62, located in a zone with respect to a central Area of the surface 54 of the contact grill reduced temperature collects.
  • An electrical supply of the heating element 48 is according to the embodiment of Fig. 1 designed as a plug element 64 on a rear side of the contact grill.
  • Fig. 4 shows a cooking chamber device with a cooking chamber unit 66, which is designed as a brick from a stoneware with glazed surface 68.
  • a recess 72 designed as a thick-film element heating element 70 is arranged in a meandering shape, which is contacted with electrical leads, which are guided by a rear-mounted to a plug member 74.
  • the heating element 70 is covered with an electrical insulating layer, not shown, for producing a safety-related insulation resistance.
  • a designed as an oven cooking device 38 is shown with a cooking chamber 40, wherein the cooking chamber 40 is closed with a door 76.
  • the oven has a control unit 78, an operating unit 80 and a display unit 82 and is provided with the cooking chamber unit 10 designed as cooking chamber 10 of the cooking chamber according to the Fig. 1 fitted.
  • the sensing unit 34 of the cooking chamber device is formed integrally with the control unit 78.
  • the oven further comprises a known per se, in a cooking chamber 84 integrated heating element for providing a top heat and a per se known, in a cooking chamber 86 integrated, independently controllable heating element to provide a bottom heat.
  • the oven is also equipped with a height adjustment device 88, with which the cooking space divider in the cooking chamber 40 is height adjustable.
  • the height adjustment device 88 comprises at two different heights on both sides of the cooking chamber 40 fixed, known per se guide elements 90, in which the cooking space divider can be inserted to change a height position.
  • On a rear wall 92 of the cooking chamber 40 of the oven in the two height positions of the guide elements 90 with sockets 94 to a power supply of the cooking chamber designed as a cooking chamber unit 10 and for contacting the temperature sensor 36 is equipped.
  • the latter In an operative position of the cooking compartment divider, the latter is plugged into a plug socket 94 of the oven with the plug element 32, and the sealing element 30 encircling the side surfaces 26 of the cooking compartment divider seals against side surfaces 96 of the cooking compartment 40, against the rear wall 92 of the cooking chamber 40 and against the closed door 76 from.
  • the door 76 of the oven is equipped with a safety switch 98, which switches the sockets 94 of the oven in an unspecified manner with the door open 76 dead.
  • the control unit 78 has in its programming on different operating modes for operating the three described different types of cooking chamber devices.
  • the control unit 78 is provided to provide a signal 100 in order to display the operating modes available for operating the at least one cooking chamber device with a display unit 82.
  • An operator can choose from the displayed operating modes with controls 102 of the operating unit 80 make a selection from the displayed operating modes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
EP10175053.7A 2009-09-15 2010-09-02 Dispositif pour une enceinte de cuisson doté d'un élément de chauffage à couche épaisse Active EP2295869B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10175053T PL2295869T3 (pl) 2009-09-15 2010-09-02 Zespół komory obróbki termicznej z grubowarstwowym elementem grzejnym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910029460 DE102009029460A1 (de) 2009-09-15 2009-09-15 Garraumvorrichtung mit Dickschichtheizelement

Publications (3)

Publication Number Publication Date
EP2295869A2 true EP2295869A2 (fr) 2011-03-16
EP2295869A3 EP2295869A3 (fr) 2012-01-04
EP2295869B1 EP2295869B1 (fr) 2016-11-30

Family

ID=43431228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10175053.7A Active EP2295869B1 (fr) 2009-09-15 2010-09-02 Dispositif pour une enceinte de cuisson doté d'un élément de chauffage à couche épaisse

Country Status (4)

Country Link
EP (1) EP2295869B1 (fr)
DE (1) DE102009029460A1 (fr)
ES (1) ES2609052T3 (fr)
PL (1) PL2295869T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155750A (zh) * 2011-04-21 2011-08-17 浙江苏泊尔家电制造有限公司 一种电磁炉及该电磁炉制造方法
CN103152846A (zh) * 2013-03-13 2013-06-12 沈闽江 厚膜加热器
EP2789920A1 (fr) * 2013-04-09 2014-10-15 BSH Bosch und Siemens Hausgeräte GmbH Séparateur d'espace de cuisson pour un appareil de cuisson et appareil de cuisson doté d'un tel séparateur d'espace de cuisson
EP3287700A1 (fr) * 2016-08-23 2018-02-28 Electrolux Appliances Aktiebolag Plateau de four et four pour fumer ou applications de traitement de vapeur aromatique
WO2019154755A1 (fr) * 2018-02-07 2019-08-15 John Bean Technologies Ab Ensemble élément chauffant servant à un appareil de cuisson
WO2020094949A1 (fr) * 2018-11-09 2020-05-14 Rosinox Système de chauffe et appareil de cuisson le comportant
EP3099980B1 (fr) 2014-01-30 2020-08-26 BSH Hausgeräte GmbH Tube de cuisson
WO2022106473A1 (fr) * 2020-11-20 2022-05-27 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP4282273A3 (fr) * 2022-05-25 2024-05-15 BSH Hausgeräte GmbH Dispositif de four

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055931A1 (de) 2011-12-01 2013-06-06 Schott Ag Heizelement
DE102012223461A1 (de) * 2012-12-17 2014-06-18 BSH Bosch und Siemens Hausgeräte GmbH Bauteil und Verfahren zur Herstellung desselben
US20230314005A1 (en) * 2022-04-01 2023-10-05 Conair Llc Dual door oven

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217545A1 (de) 1992-05-27 1993-12-02 Licentia Gmbh Elektrischer Back- und Bratofen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274915B (en) * 1993-01-11 1996-08-28 Ist Lab Ltd An oven
EP0838638A3 (fr) * 1998-02-16 1998-09-09 Electrolux AG Dispositif pour le chauffage des fours de cuisson
DE10258727A1 (de) * 2002-12-05 2004-06-24 Schott Glas Ofen
DE10314507A1 (de) * 2003-03-31 2004-10-14 BSH Bosch und Siemens Hausgeräte GmbH Blechteil, insbesondere Gargerätemuffel
DE102007043807A1 (de) * 2007-09-13 2009-03-19 Schürmann, Heinrich Backofen mit Steinplatten und Infrarotheizung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217545A1 (de) 1992-05-27 1993-12-02 Licentia Gmbh Elektrischer Back- und Bratofen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155750B (zh) * 2011-04-21 2015-09-09 浙江苏泊尔家电制造有限公司 一种电磁炉及该电磁炉制造方法
CN102155750A (zh) * 2011-04-21 2011-08-17 浙江苏泊尔家电制造有限公司 一种电磁炉及该电磁炉制造方法
CN103152846A (zh) * 2013-03-13 2013-06-12 沈闽江 厚膜加热器
CN103152846B (zh) * 2013-03-13 2014-06-11 沈闽江 厚膜加热器
EP2789920A1 (fr) * 2013-04-09 2014-10-15 BSH Bosch und Siemens Hausgeräte GmbH Séparateur d'espace de cuisson pour un appareil de cuisson et appareil de cuisson doté d'un tel séparateur d'espace de cuisson
EP3099980B2 (fr) † 2014-01-30 2023-06-28 BSH Hausgeräte GmbH Tube de cuisson
EP3099980B1 (fr) 2014-01-30 2020-08-26 BSH Hausgeräte GmbH Tube de cuisson
EP3287700A1 (fr) * 2016-08-23 2018-02-28 Electrolux Appliances Aktiebolag Plateau de four et four pour fumer ou applications de traitement de vapeur aromatique
WO2019154755A1 (fr) * 2018-02-07 2019-08-15 John Bean Technologies Ab Ensemble élément chauffant servant à un appareil de cuisson
CN111656859B (zh) * 2018-02-07 2023-07-04 卓缤科技有限公司 用于烹饪装置的加热元件组件
CN111656859A (zh) * 2018-02-07 2020-09-11 卓缤科技有限公司 用于烹饪装置的加热元件组件
US11337551B2 (en) 2018-02-07 2022-05-24 John Bean Technologies Ab Heating element assembly for cooking apparatus
FR3088413A1 (fr) * 2018-11-09 2020-05-15 Rosinox Systeme de chauffe et appareil de cuisson le comportant
WO2020094949A1 (fr) * 2018-11-09 2020-05-14 Rosinox Système de chauffe et appareil de cuisson le comportant
WO2022106473A1 (fr) * 2020-11-20 2022-05-27 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP4282273A3 (fr) * 2022-05-25 2024-05-15 BSH Hausgeräte GmbH Dispositif de four

Also Published As

Publication number Publication date
ES2609052T3 (es) 2017-04-18
PL2295869T3 (pl) 2017-05-31
EP2295869A3 (fr) 2012-01-04
EP2295869B1 (fr) 2016-11-30
DE102009029460A1 (de) 2011-03-24

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