EP3620034B1 - Appareil de cuisson à flexibilité et efficacité énergétique améliorées - Google Patents

Appareil de cuisson à flexibilité et efficacité énergétique améliorées Download PDF

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Publication number
EP3620034B1
EP3620034B1 EP17725871.2A EP17725871A EP3620034B1 EP 3620034 B1 EP3620034 B1 EP 3620034B1 EP 17725871 A EP17725871 A EP 17725871A EP 3620034 B1 EP3620034 B1 EP 3620034B1
Authority
EP
European Patent Office
Prior art keywords
food
glass cooktop
cooking appliance
cooking
resistance heaters
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
EP17725871.2A
Other languages
German (de)
English (en)
Other versions
EP3620034A1 (fr
Inventor
Erkan Ozturk
Okan Cicimen
Emrah AKTAS
Cagatay Buyuktopcu
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Publication date
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Publication of EP3620034A1 publication Critical patent/EP3620034A1/fr
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Publication of EP3620034B1 publication Critical patent/EP3620034B1/fr
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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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • 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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means

Definitions

  • the present invention relates to a cooking appliance with a glass cooktop.
  • the present invention more particularly relates to a built-in type cooking appliance.
  • Cooking appliances with glass cooktops are commonly known in the art. In order to allow the user to cook more flexibly, various household manufactures now provide the cooking appliances with glass cooktops on which the cooking utensils can be randomly placed by the user.
  • This type of a cooking appliance has a plurality of resistance heaters which are arranged into a matrix of rows and columns below the glass cooktop for heating the food. During its operation, first the location of the cooking utensil on the glass cooktop is detected, thereafter the resistance heaters under the cooking utensil are determined and energized so as to heat the cooking utensil and cook the food therein.
  • EP1206164A2 discloses a cooking appliance with a cooktop as specified above.
  • the location of the cooking utensil is determined through the electromagnetic coupling which is affected through the presence/absence of the metal cooking utensil
  • WO2014/106960 discloses another cooking appliance according to the prior art.
  • a problem with the prior art cooking appliance is that the use of a cooking utensil increases the energy consumption and the overall cooking time due to its mass which also stores and radiates the heat.
  • the energy consumption and the cooking time increases even more when the user selects for a comparatively small amount of food such as a small piece of meat, a cooking utensil which covers an unnecessarily large amount of area on the glass cooktop, and thus an increased number of resistance heaters below the glass cooktop are involved in the cooking process.
  • the use of a cooking utensil may under the circumstances reduce the flexibility of the cooking appliance.
  • An objective of the present invention is to provide a cooking appliance which solve the aforementioned problems of the prior art in a cost-effective way and which enables the user to cook more flexibly, more energy efficiently and more quickly.
  • the cooking appliance of the present invention comprises: a glass cooktop on which the food to be cooked can be randomly placed without a cooking utensil by the user; a plurality of resistance heaters which are arranged in rows and columns below the glass cooktop and adapted to cook the food which is randomly placed on the glass cooktop without a cooking utensil by the user; and a control unit which comprises: a first detecting means which is adapted to directly detect the location of the food placed on the glass cooktop without a cooking utensil; a determining means which is adapted to determine based on the detection result of the first detecting means the resistance heaters which are immediately below the food; and a driving means which is adapted to drive based on the determination result of the determining means the resistance heaters which are below the food so as to cook the same.
  • a major advantageous effect of the present invention is that the flexibility of the cooking appliance has been increased as the user can cook the food, for instance, a piece of meat without a cooking utensil such as a pan or a pot randomly on any location of the glass cooktop.
  • Another major advantageous effect of the present invention is that the energy efficiency of the cooking appliance has been improved since the resistance heaters which would have been otherwise positioned under the cooking utensil but not necessarily under the food can be turned off, and thus the energy consumption can be reduced. Thereby, the food can be cooked more energy efficiently and more quickly as the energy which would have been otherwise consumed by the cooking utensil can be saved.
  • the first detecting means is disposed above the glass cooktop and acoustically detects the location of the food which is randomly placed on the glass cooktop without a cooking utensil by the user.
  • the shape of the food such as a piece of meat can be detected, and the resistance heaters which are immediately below the piece of meat can be determined and energized for the cooking process.
  • the detection process can be conducted in parallel to the cooking process, and thus the cooking appliance can be more smoothly operated.
  • This embodiment is particularly advantageous as the acoustical detection is cost effective and reliable.
  • the cooking appliance further has an input/output device disposed above the glass cooktop for projecting a virtual keyboard onto an area of the glass cooktop and/or onto an area in the vicinity of the glass cooktop.
  • the control unit controls the cooking appliance based on the user inputs made through the virtual keyboard by the user.
  • the first detecting means as part of the input output device, also detects the user inputs made through the virtual keyboard.
  • the first detecting means has a plurality of load cells which are arranged in rows and columns below the glass cooktop in spatial one-to one correspondence with the resistance heaters.
  • the shape of the food such as a piece of meat can be detected, and the resistance heaters which are immediately below the piece of meat can be determined and energized for the cooking process.
  • the detection process can be similarly conducted in parallel to the cooking process, and thus the cooking appliance can be more smoothly operated.
  • the load cells have spring loaded micro switches. This embodiment is particularly advantageous as the load cells are environment-friendly and reliable.
  • the cooking appliance further has an input/output device disposed above the glass cooktop for projecting a virtual keyboard onto an area of the glass cooktop and/or onto an area in the vicinity of the glass cooktop.
  • the control unit controls the cooking appliance based on the user inputs made through the virtual keyboard by the user.
  • a second detecting means of the input/output device detects the user inputs made through the virtual keyboard.
  • the cooking appliance has an extractor hood, wherein the input/output device is disposed onto the extractor hood.
  • extractor hood is an ideal support that can center the input/output device above the glass cooktop.
  • the cooking appliance are provided as built-in type appliances. These embodiments are particularly advantageous as the cooking appliance and the extractor hood can be integrated into the kitchen furniture.
  • the resistance heaters overlap the entire lower surface of the glass cooktop. This embodiment is particularly advantageous as the use efficiency of the glass cooktop area can be maximally increased up to the edges thereof.
  • the resistance heaters have comparatively small sizes.
  • the resistance heater may cover an area which is smaller than 5 square centimeters.
  • the resistance heater may alternatively cover an area which ranges between 5 to 10 square centimeters.
  • the cooking appliance (1) of the present invention comprises: a glass cooktop (2) on which the food (3) to be cooked can be randomly placed without a cooking utensil by the user; a plurality of resistance heaters (4) which are arranged in rows (R) and columns (C) below the glass cooktop (2) and adapted to cook the food (3) which is randomly placed on the glass cooktop (2) without a cooking utensil by the user; and a control unit (5) which comprises: a first detecting means (6) which is adapted to directly detect the location of the food (3) placed on the glass cooktop (2) without a cooking utensil; a determining means which is adapted to determine, based on the detection result of the first detecting means (6) the resistance heaters (4) which are immediately below the food (3) ; and a driving means which is adapted to drive, based on the determination result of the determining means the resistance heaters (4) which are below the food (3) so as to cook the same ( Fig. 1 to Fig. 4 ).
  • the first detecting means (6) is disposed above the glass cooktop (2) and is further adapted to acoustically detect the location of the food (3) which is randomly placed on the glass cooktop (2) without a cooking utensil by the user ( Fig. 1 and Fig. 2 ).
  • the cooking appliance (1) further comprises: an input/output device (10) which is disposed above the glass cooktop (2) and which comprises: a projecting means (11) which is adapted to project a virtual keyboard (12) onto an area of the glass cooktop (2) and/or onto an area in the vicinity of the glass cooktop (2) ; and the first detecting means (6) which is further adapted to detect the user inputs made through the virtual keyboard (12) , wherein the control unit (5) is further adapted to control the cooking appliance (1) , in particular the driving means based on the user inputs made through the virtual keyboard (12) by the user ( Fig. 1 and Fig. 2 ).
  • the first detecting means (6) comprises: a plurality of load cells (7) which are arranged in rows (R) and columns (C) below the glass cooktop (2) and adapted to detect the weight of the food (3) , wherein the load cells (7) are arranged in spatial one-to one correspondence with the resistance heaters (4) ( Fig. 3 and Fig. 4 ).
  • the load cells (7) each comprises: a spring (8) which is adapted to be locally compressed by the weight of the food (3) ; and a micro switch (9) which is arranged below the spring (8) and adapted to be activated through the compression of the springs (8) and to output to the control unit (5) an ON/OFF signal which is indicative of the activation/deactivation thereof ( Fig. 3 and Fig. 4 )
  • the cooking appliance (1) further comprises: an input/output device (10) which is disposed above the glass cooktop (2) and which comprises: a projecting means (11) which is adapted to project a virtual keyboard (12) onto an area of the glass cooktop (2) and/or an area in the vicinity of the glass cooktop (2) ; and a second detecting means (13) which is adapted to detect the user inputs made through the virtual keyboard (12) , wherein the control unit (5) is further adapted to control the cooking appliance (1) , in particular the driving means based on the user inputs made through the virtual keyboard (12) ( Fig. 3 and Fig. 4 ).
  • the cooking appliance (1) further comprises: an extractor hood (14) for extracting the fume rising from the food (3) that is cooked on the glass cooktop (2) , wherein the input/output device (10) is disposed onto the extractor hood (14) at a position above the glass cooktop (2) ( Fig. 1 and Fig. 3 )
  • the extractor hood (14) is provided as built-in type extractor hood (14) .
  • the plurality of resistance heaters (4) overlaps the entire lower surface of the glass cooktop (2) .
  • each resistance heater (4) covers an area which is smaller than 5 square centimeters.
  • each resistance heaters (4) covers an area which ranges between 5 to 10 square centimeters.
  • the cooking appliance (1) is provided as a built-in type cooking appliance (1) .
  • the present invention also provides a method of operating the cooking appliance (1) for cooking the food (3) without a cooking utensil such as a pot or a pan or the like.
  • the method comprises a step of randomly placing the food (3) to be cooked without a cooking utensil onto a glass cooktop (2) under which a plurality of resistance heaters (4) are arranged in rows (R) and columns (C) for heating the food (3) ; a step of directly detecting the location of the food (3) placed on the glass cooktop (2) without a cooking utensil; a step of determining, based on the detection result in the detecting step, the resistance heaters (4) which are immediately below the food (3) ; and a step of driving, based on the determination result in the determining step, the resistance heaters (4) which are immediately below the food (3) .
  • the location of the food (3) which is randomly placed on the glass cooktop (2) without a cooking utensil is acoustically detected by using the first detecting means (6) .
  • the weight of the food (3) is detected by the plurality of load cells (7) which are arranged in rows (R) and columns (C) below the glass cooktop (2) and in spatial one-to-one correspondence with the plurality of resistance heaters (4) .
  • a major advantageous effect of the present invention is that the flexibility of the cooking appliance (1) has been increased as the user can cook the food (3) , for instance, a piece of meat without a cooking utensil such as a pan or a pot randomly on any location of the glass cooktop (2) .
  • Another major advantageous effect of the present invention is that the energy efficiency of the cooking appliance (1) has been improved since the resistance heaters (4) which would have been otherwise positioned under the cooking utensil but not necessarily under the food (3) can be turned off, and thus the energy consumption can be reduced. Thereby, the food (3) can be cooked more energy efficiently and more quickly as the energy which would have been otherwise consumed by the cooking utensil can be saved.
  • Other advantageous effects of the present invention can be taken from the above described embodiments.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Combinations Of Kitchen Furniture (AREA)
  • Cookers (AREA)

Claims (7)

  1. Un appareil de cuisson (1) comprenant :
    - une table de cuisson en verre (2) sur laquelle les aliments (3) à cuire peuvent être placés au hasard, sans ustensile de cuisson, par l'utilisateur ;
    - une pluralité de résistances chauffantes (4) qui sont disposées en rangées (R) et en colonnes (C) sous la table de cuisson en verre (2) et adaptées pour cuire les aliments (3) qui sont placés au hasard sur la table de cuisson en verre (2) sans ustensile de cuisson par l'utilisateur ; et
    une unité de contrôle (5) qui comprend :
    - un premier moyen de détection (6) qui est adapté pour détecter directement l'emplacement des aliments (3) placés sur la table de cuisson en verre (2) sans ustensile de cuisson ;
    - un moyen de détermination qui est adapté pour déterminer, sur la base du résultat de la détection du premier moyen de détection (6), les résistances chauffantes (4) qui se trouvent immédiatement sous la denrée alimentaire (3) ; et
    - un moyen de commande qui est adapté pour commander, en fonction du résultat de la détermination du moyen de détermination, les résistances chauffantes (4) qui se trouvent sous les aliments (3) afin de les cuire ; est caractérisé en ce que :
    - le premier moyen de détection (6) est disposé au-dessus de la table de cuisson en verre (2) et adapté en outre pour détecter acoustiquement l'emplacement de l'aliment (3) qui est placé au hasard sur la table de cuisson en verre (2) sans ustensile de cuisson par l'utilisateur ; ou
    - le premier moyen de détection (6) comprend : une pluralité de cellules de charge (7) qui sont disposées en lignes (R) et en colonnes (C) sous la table de cuisson en verre (2) et adaptées pour détecter le poids des aliments (3), dans lequel les cellules de charge (7) sont disposées en correspondance spatiale avec les résistances chauffantes (4).
  2. L'appareil de cuisson (1) selon la déclaration 1, est caractérisé en ce que chacune des cellules de charge (7) comprend : un ressort (8) qui est adapté pour être comprimé localement par le poids de l'aliment (3) ; et un micro-interrupteur (9) qui est disposé sous le ressort (8) et adapté pour être activé par la compression des ressorts (8) et pour émettre vers l'unité de commande (5) un signal MARCHE/ARRET qui est indicatif de l'activation et de la désactivation de celui-ci.
  3. L'appareil de cuisson (1) selon la déclaration 1 ou 2, est caractérisé en ce que la pluralité de résistances chauffantes (4) chevauche toute la surface inférieure de la table de cuisson en verre (2).
  4. L'appareil de cuisson (1) selon l'une quelconque des déclarations 1 à 3, est caractérisé en ce que chaque résistance chauffante (4) couvre une surface inférieure à 5 centimètres carrés.
  5. L'appareil de cuisson (1) selon l'une quelconque des déclarations 1 à 3, est caractérisé en ce que chaque résistance chauffante (4) couvre une surface qui varie entre 5 et 10 centimètres carrés.
  6. L'appareil de cuisson (1) selon l'une quelconque des déclarations 1 à 5, est caractérisé en ce qu'il est fourni comme un appareil de cuisson de type encastrable (1).
  7. Une méthode de cuisson des aliments (3), comprenant :
    - une étape consistant à placer au hasard les aliments (3) à cuire sans ustensile de cuisson sur une table de cuisson en verre (2) sous laquelle une pluralité de résistances chauffantes (4) sont disposées en lignes (R) et en colonnes (C) pour chauffer les aliments (3) ;
    - une étape consistant à détecter directement l'emplacement des aliments (3) placés sur la table de cuisson en verre (2) sans ustensile de cuisson,
    - une étape consistant à déterminer, sur la base du résultat de l'étape de détection, les résistances chauffantes (4) qui se trouvent immédiatement sous la denrée alimentaire (3) ; et
    - une étape de commande, basée sur le résultat de la détermination dans l'étape de détermination, des résistances chauffantes (4) qui se trouvent immédiatement en dessous de l'aliment (3) ; est caractérisé en ce que l'étape de détection comprend :
    - détecter acoustiquement, par un premier moyen de détection (6) disposé au-dessus de la table de cuisson en verre (2), l'emplacement de l'aliment (3) qui est placé au hasard sur la table de cuisson en verre (2) sans ustensile de cuisson ; ou
    - détecter, par une pluralité de cellules de charge (7) qui sont disposées en lignes (R) et en colonnes (C) sous la plaque de cuisson en verre (2) et en correspondance spatiale avec la pluralité de résistances chauffantes (4), le poids des aliments (3).
EP17725871.2A 2017-05-03 2017-05-03 Appareil de cuisson à flexibilité et efficacité énergétique améliorées Active EP3620034B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/060546 WO2018202293A1 (fr) 2017-05-03 2017-05-03 Appareil de cuisson à flexibilité et efficacité énergétique améliorées

Publications (2)

Publication Number Publication Date
EP3620034A1 EP3620034A1 (fr) 2020-03-11
EP3620034B1 true EP3620034B1 (fr) 2020-12-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17725871.2A Active EP3620034B1 (fr) 2017-05-03 2017-05-03 Appareil de cuisson à flexibilité et efficacité énergétique améliorées

Country Status (4)

Country Link
EP (1) EP3620034B1 (fr)
ES (1) ES2859475T3 (fr)
TR (1) TR201801617A2 (fr)
WO (1) WO2018202293A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215817A (en) * 1963-05-22 1965-11-02 Duncan C Peek Heating devices for utensils
DE3619762A1 (de) * 1986-06-12 1987-12-23 Licentia Gmbh Topferkennung
IT1319292B1 (it) 2000-11-08 2003-10-10 Whirlpool Co Dispositivo per rilevare la collocazione di utensili di cottura su unpiano di cottura ad elementi riscaldanti discreti e distribuiti.
US20110254939A1 (en) * 2010-04-16 2011-10-20 Tatiana Pavlovna Kadantseva Detecting User Input Provided To A Projected User Interface
KR101373610B1 (ko) * 2013-01-03 2014-03-14 박대규 스마트 그릴 및 그 온도제어방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
WO2018202293A1 (fr) 2018-11-08
EP3620034A1 (fr) 2020-03-11
TR201801617A2 (tr) 2018-11-21
ES2859475T3 (es) 2021-10-04

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