EP3997961B1 - Four à micro-ondes domestique avec dispositif de variation de mode - Google Patents

Four à micro-ondes domestique avec dispositif de variation de mode Download PDF

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Publication number
EP3997961B1
EP3997961B1 EP20737166.7A EP20737166A EP3997961B1 EP 3997961 B1 EP3997961 B1 EP 3997961B1 EP 20737166 A EP20737166 A EP 20737166A EP 3997961 B1 EP3997961 B1 EP 3997961B1
Authority
EP
European Patent Office
Prior art keywords
microwave
appliance
cooking chamber
points
household
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20737166.7A
Other languages
German (de)
English (en)
Other versions
EP3997961A1 (fr
Inventor
Sebastian Sterz
Markus Kuchler
Kerstin RIGORTH
Matthias Vogt
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
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3997961A1 publication Critical patent/EP3997961A1/fr
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Publication of EP3997961B1 publication Critical patent/EP3997961B1/fr
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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/66Circuits
    • H05B6/68Circuits for monitoring or control
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6432Aspects relating to testing or detecting leakage in a microwave heating apparatus
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/72Radiators or antennas
    • H05B6/725Rotatable antennas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices
    • F24C7/081Arrangement or mounting of control or safety devices on stoves
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/70Feed lines
    • H05B6/705Feed lines using microwave tuning
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/74Mode transformers or mode stirrers
    • H05B6/745Rotatable stirrers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6408Supports or covers specially adapted for use in microwave heating apparatus
    • H05B6/6411Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/74Mode transformers or mode stirrers

Definitions

  • characteristic properties of the curve can be determined with the help of standard curve evaluations or curve discussions.
  • characteristic points can be determined as zeros, zeros of a slope, maxima/minima, maxima/minima of a slope, turning points, terrace points, etc. of the measurement curve or any derivatives.
  • a sniffer line can be used, which leads past all selected leakage points. This achieves the advantage that the switching points can be determined using only a single sniffer line.
  • the evaluation circuit is integrated into a control device of the household microwave appliance.
  • the evaluation circuit is accommodated in a spatial area which is particularly well suited or provided for accommodating electrical and/or electronic components.
  • the control device is accommodated in a specially protected compartment, division or compartment that is, for example, thermally insulated and/or ventilated to cool the evaluation unit.
  • the signal paths between the evaluation circuit and the control device are particularly short and therefore not susceptible to interference.
  • the output signals or output information can be routed directly to a processor (e.g. a microcontroller, FPGA, ASIC, etc.) of the control device.
  • a processor e.g. a microcontroller, FPGA, ASIC, etc.
  • Another advantage is that typically several electrical lines (power supply lines and/or data lines) lead from the control device to loads, so that the positioning of the evaluation circuit on the control device enables particularly short distances from the at least one sniffer line to the evaluation circuit.
  • the electrical lines 15 are connected to the printed circuit board 14 at connection points 16 such as terminals or the like and merge there into corresponding conductor tracks 17 on the printed circuit board 14 .
  • connection points 16 such as terminals or the like and merge there into corresponding conductor tracks 17 on the printed circuit board 14 .
  • only one sniffer line 11 is connected to an evaluation circuit 10 arranged on the circuit board 14, which in turn is connected to a processor 18, e.g. a microcontroller, ASIC or FPGA, of the control device 9.
  • the evaluation circuit 10 is therefore integrated into the control device 9 .
  • Fig.5 shows a first derivation of the in Fig.4 shown and smoothed curve as a plot of an amount of measured value change

Landscapes

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

Claims (12)

  1. Appareil ménager à micro-ondes (1), comprenant :
    - un espace de cuisson (2) pouvant être exposé à des micro-ondes,
    - au moins un dispositif de variation de mode (7), qui est configuré pour modifier la distribution de champ des micro-ondes dans l'espace de cuisson (2), et
    - au moins un capteur de fuite de micro-ondes (10, 11) servant à détecter un rayonnement de fuite de micro-ondes sortant de l'espace de cuisson (2),
    dans lequel l'appareil ménager à micro-ondes (1) est configuré pour :
    - varier des valeurs de réglage (cp) de l'au moins un dispositif de variation de mode (7),
    caractérisé en ce que l'appareil ménager à micro-ondes est configuré en outre pour déterminer, à l'aide de la quantité de données de mesure du rayonnement de fuite de micro-ondes détecté résultant de la variation, au moins un point de fonctionnement de l'au moins un dispositif de variation de mode (7).
  2. Appareil ménager à micro-ondes (1) selon la revendication 1, dans lequel l'appareil ménager à micro-ondes (1) est configuré pour :
    - parcourir une plage de réglage d'au moins un dispositif de variation de mode (7),
    - mesurer une puissance du rayonnement de fuite de micro-ondes pour les valeurs réglées respectives (cp) de la plage de réglage parcourue, et
    - à partir de la courbe résultante, déterminer au moins une propriété caractéristique, à partir de laquelle l'au moins un point de fonctionnement peut être déterminé.
  3. Appareil ménager à micro-ondes (1) selon l'une des revendications précédentes, dans lequel les propriétés caractéristiques comprennent des points de basculement (U1-U7), au niveau desquels une modification significative de la distribution du champ se produit, et l'appareil ménager à micro-ondes (1) est configuré pour déterminer des points de fonctionnement de l'au moins un dispositif de variation de mode (7) de façon à ce qu'ils se situent en dehors des points de basculement (U1-U7).
  4. Appareil ménager à micro-ondes (1) selon la revendication 3, dans lequel l'appareil ménager à micro-ondes (1) est configuré pour définir des points situés au milieu de deux points de basculement (U1 - U7) voisins en tant que points de fonctionnement.
  5. Appareil ménager à micro-ondes (1) selon la revendication 2 associée à l'une des revendications 3 à 4, dans lequel les points de basculement (U1 - U7) sont déterminés à partir des points d'inflexion de la courbe.
  6. Appareil ménager à micro-ondes (1) selon la revendication 2, dans lequel les propriétés caractéristiques comprennent des points aux extrémités et/ou de palier de la courbe et l'appareil ménager à micro-ondes (1) est configuré pour définir les points aux extrémités et/ou de palier en tant que points de fonctionnement de l'au moins un dispositif de variation de mode (7).
  7. Appareil ménager à micro-ondes (1) selon l'une des revendications précédentes, dans lequel l'au moins un dispositif de variation de mode (7) comprend au moins un dispositif parmi les suivants :
    - une antenne tournante (7),
    - une plaque tournante,
    - un brasseur de modes,
    - un générateur de micro-ondes.
  8. Appareil ménager à micro-ondes (1) selon l'une des revendications précédentes, dans lequel l'au moins un capteur de fuite de micro-ondes (10, 11) est configuré pour mesurer un rayonnement de fuite de micro-ondes passant à travers une paroi de l'espace de cuisson (3).
  9. Appareil ménager à micro-ondes (1) selon l'une des revendications précédentes, dans lequel l'au moins un capteur de fuite de micro-ondes (10, 11) est configuré pour mesurer un rayonnement de fuite de micro-ondes passant à travers un interstice de porte entre une bride de boîtier et une porte (4) fermant l'espace de cuisson (2).
  10. Appareil ménager à micro-ondes (1) selon l'une des revendications précédentes, dans lequel l'au moins un capteur de fuite de micro-ondes (10, 11) comprend au moins une conduite de reniflage (11).
  11. Procédé de fonctionnement d'un appareil ménager à micro-ondes (1), dans lequel :
    - un espace de cuisson (2) peut être exposé à des micro-ondes,
    - des valeurs de réglage (cp) d'au moins un dispositif de variation de mode (7), qui est configuré pour modifier la distribution de champ des micro-ondes dans l'espace de cuisson (2), sont variées,
    - pour les différentes valeurs de réglage (cp) de l'au moins un dispositif de variation de mode (7), le rayonnement de fuite de micro-ondes sortant de l'espace de cuisson (2) est mesuré,
    caractérisé en ce que des points de fonctionnement d'au moins un dispositif de variation de mode (7) sont déterminés sur la base du rayonnement de fuite de micro-ondes détecté.
  12. Procédé selon la revendication 11, dans lequel, sur la base du rayonnement de fuite de micro-ondes détecté, des points de basculement (U1-U7) sont déterminés, au niveau desquels une modification notable de la distribution du champ des micro-ondes dans l'espace de cuisson (2) se produit, et des points de fonctionnement de l'au moins un dispositif de variation de mode (7) sont déterminés de façon à ce qu'ils se situent en dehors des points de basculement (U1-U7).
EP20737166.7A 2019-07-09 2020-07-07 Four à micro-ondes domestique avec dispositif de variation de mode Active EP3997961B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019210119.4A DE102019210119A1 (de) 2019-07-09 2019-07-09 Haushalts-Mikrowellengerät mit Modenvariationsvorrichtung
PCT/EP2020/069062 WO2021005030A1 (fr) 2019-07-09 2020-07-07 Appareil ménager à micro-ondes comportant un dispositif de variation de modes

Publications (2)

Publication Number Publication Date
EP3997961A1 EP3997961A1 (fr) 2022-05-18
EP3997961B1 true EP3997961B1 (fr) 2023-07-05

Family

ID=71523165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20737166.7A Active EP3997961B1 (fr) 2019-07-09 2020-07-07 Four à micro-ondes domestique avec dispositif de variation de mode

Country Status (5)

Country Link
US (1) US20220264711A1 (fr)
EP (1) EP3997961B1 (fr)
CN (1) CN114051766A (fr)
DE (1) DE102019210119A1 (fr)
WO (1) WO2021005030A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021110521A1 (de) * 2021-04-23 2022-10-27 Topinox Sarl Verfahren zum Garen von Gargut in einem Kombinationsgargerät sowie Kombinationsgargerät

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2029559C3 (de) 1970-01-17 1974-08-08 Industrie A. Zanussi S.P.A., Pordenone (Italien) Sicherheitsvorrichtung gegen den Austritt von Strahlungen aus Mikrowellengeräten
DE19537755A1 (de) 1995-10-10 1997-04-30 Mikrowellen Systeme Mws Gmbh Mikrowellenofen, insbesondere für ein Labor
US6462320B1 (en) * 1996-05-17 2002-10-08 Technology Finance Corporation (Proprietary) Limited Dielectric heating device employing microwave heating for heating or cooking substances
US7145118B1 (en) * 2005-08-22 2006-12-05 Ming-Jing Wu Microwave oven protective circuit arrangement
GB0526043D0 (en) 2005-12-22 2006-02-01 Micromass Ltd Mass spectrometer
DE502008002740D1 (de) 2008-07-21 2011-04-14 Topinox Sarl Verfahren und Vorrichtung zur Mikrowellen-Leckageüberwachung bei einem Gargerät
EP2152047A1 (fr) 2008-08-04 2010-02-10 Topinox Sarl Dispositif de sécurité destiné à la détection de rayonnement de fuite
EP2230883B1 (fr) * 2009-03-19 2011-09-07 Topinox Sarl Appareil de cuisson au micro-ondes et son procédé de fonctionnement
CN102933905B (zh) * 2010-05-26 2015-04-01 Lg电子株式会社 烹调装置
DE102015103246A1 (de) * 2015-03-05 2016-09-08 Topinox Sarl Gargerät sowie Verfahren zum Betreiben eines Gargeräts
CN109882890A (zh) * 2019-03-20 2019-06-14 广东美的厨房电器制造有限公司 微波烹饪设备及厨房控制系统

Also Published As

Publication number Publication date
WO2021005030A1 (fr) 2021-01-14
US20220264711A1 (en) 2022-08-18
EP3997961A1 (fr) 2022-05-18
DE102019210119A1 (de) 2021-01-14
CN114051766A (zh) 2022-02-15

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