WO2013010555A1 - Batterie de cuisine pour une plaque de cuisson à induction - Google Patents

Batterie de cuisine pour une plaque de cuisson à induction Download PDF

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Publication number
WO2013010555A1
WO2013010555A1 PCT/EP2011/003573 EP2011003573W WO2013010555A1 WO 2013010555 A1 WO2013010555 A1 WO 2013010555A1 EP 2011003573 W EP2011003573 W EP 2011003573W WO 2013010555 A1 WO2013010555 A1 WO 2013010555A1
Authority
WO
WIPO (PCT)
Prior art keywords
jacket
cooking pot
cookware
pot
wall
Prior art date
Application number
PCT/EP2011/003573
Other languages
German (de)
English (en)
Inventor
Katarina Verhaegen
Hans SPRUYTTE
Kurt Coppens
Original Assignee
Zwilling J.A. Henckels Ag
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 Zwilling J.A. Henckels Ag filed Critical Zwilling J.A. Henckels Ag
Priority to PCT/EP2011/003573 priority Critical patent/WO2013010555A1/fr
Publication of WO2013010555A1 publication Critical patent/WO2013010555A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/36—Shields or jackets for cooking utensils minimising the radiation of heat, fastened or movably mounted
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/022—Cooking- or baking-vessels or supports thereof for using only once
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/34—Supports for cooking-vessels

Definitions

  • the invention relates to a cookware for an induction hob, wherein the
  • Cookware contains a saucepan with a bottom over a
  • alternating electromagnetic field is heated and has a raised pot wall, which connects to the ground.
  • a cookware which consists of a casing which is mounted around a pot so that the heat is captured in this way and the side walls of the pot can become very warm in order to better transfer energy to the food create.
  • the object of the invention is to provide a cookware, which is suitable for inductive heating and in which both the wall temperature and the energy consumption during and after the cooking process in comparison to
  • the cookware has a thermally insulating outer jacket, which surrounds the pot wall and the bottom at least partially, and projects with at least one lower shell region and / or a support member relative to the bottom of the saucepan down so that a downwardly open air gap between the bottom and the bottom of the shell is to provide a space between the bottom of the bottom and the top of the hob.
  • the distance between the suspended saucepan and The induction hot plate is chosen so that there is no measurable loss and the magnetic field lines are maximally absorbed in the bottom of the cooking pot.
  • the mantle can either be made to measure for a specific cooking pot or designed to be customizable, making it suitable for use on a variety of existing cooking pots.
  • Bodens is made of a material that can be warmed up by magnetic induction.
  • the aforementioned coat is made of a material which is not directly accessible via magnetic induction (or, in other words, for magnetic induction transparent) is warmed up.
  • an air gap is provided between the jacket and the cooking pot which forms a thermal barrier in this way.
  • This set-up is designed to limit losses due to convection around the saucepan as much as possible, so that the food to be prepared is thermally better insulated to the outside. As a result, the heat remains longer in the saucepan, or in other words, it must be transported less energy to bring the food to be prepared in the saucepan to a certain temperature or to hold. After cooking, or in other words, after switching off or removing the induction source, the food in the cooking pot stays warm longer than in already known cookware.
  • the thermal insulation provided by the aforementioned jacket ensures that the inner wall of the cooking pot is thermally isolated from the outer wall of the jacket when the pan is in the jacket. There is no risk of burns if the jacket is touched during cooking and thereafter. Furthermore, when using the
  • Cookware according to the invention the positive effect that the bottom of the hot pot, the work and / or table top (when serving food) does not touch directly when it is parked with the coat on it.
  • the cooking instrument in its entirety can be freely moved and set down without having to use a backing or other protective material.
  • the coat can be made of different materials or material mixes. - One requirement is that the material is not warmed up by the magnetic flux of the alternating magnetic field generated under the cooking plate. Because the shell only comes in contact with the cooking pot at some limited locations (handle or rim, recesses or grooves), and if an air gap is provided between the cooking pot and the jacket, a material or a combination of different materials can be selected without that too strict conditions in connection with the
  • the walls of the cookware and the jacket are made of the same non-magnetic material as e.g. 18/8 or 18/10 stainless steel, other austenitic steels and other alternative materials such as aluminum or copper.
  • the said pot with coat can easily in one
  • Deep drawing process are produced.
  • pot and shell are fabricated separately and then the jacket is welded to the upper edge of the pot.
  • the jacket and the cookware can have different thicknesses). Since the inner side wall of the shell thereby has a larger diameter than the outer diameter of the cookware arises in this embodiment, the desired air gap.
  • the execution of the walls can be parallel and cylindrical, a configuration with a non-parallel, conical design is also possible.
  • an air gap is created under the bottom of the cooking pot as the shell and cookware are carried by the bottom edge of the shell.
  • the lower edge of the shell (which rests on the plate of the hob can be sanded or folded (or the like) be to effectively prevent damage to the hob by moving the cooking appliance.
  • the aforementioned embodiment can be done by deep drawing.
  • this invention provides i.a. these advantages:
  • the proposed new cookware can be placed directly - when hot - on a shelf or on the dining table (for serving), as there is no direct contact between the bottom of the saucepan and a surface underneath ('hanging' table);
  • Figure 1 shows an axial vertical section through a first
  • Figure 2 is an axial vertical section through a second
  • FIG. 3 shows an isometric view of the embodiment according to FIG. 2
  • Figure 4 is a perspective view of a third
  • FIG. 5 is a perspective view of a fourth
  • induction hotplates In induction hotplates, induction eddy currents or Foucault currents are generated by means of a changing electromagnetic field below the cooking plate. These eddy currents are generated in a part of a cooking pot which is magnetizable, mainly in the bottom of the cooking pot. In this way, the cooking pot is heated and not the hotplate.
  • the heat source does not need to be as large in diameter as the bottom of the saucepan, which contributes to the safety of the system and the minimum consumption of energy.
  • the proportion of energy used to heat the food is about 15 to 25 percent of the total
  • the cookware according to the invention is generally a jacket 12 for a saucepan and a saucepan provided with such a jacket.
  • This sheath 12 according to the invention is made of a thermally insulating material which is highly transparent to a magnetic field, i. h. that it can not be heated by the magnetic field 15, which is generated below the cooking plate 16 and extends at least into the bottom of the cooking pot when it is placed on the surface of the cooking plate.
  • the mantle usually extends over the wall area of the
  • Saucepan while the bottom portion of the saucepan remains uncovered / free. When draining the cooking pot in the mantle, this extends over at least one support element B away to the bottom of the saucepan over. If the saucepan is placed together with the shell in this way on a flat surface, a free space, in detail an air gap L, between the bottom of the saucepan and this surface is present.
  • the above-mentioned support member B can take various forms. This support element may be formed, for example, by two, three or more inconspicuous supports or feet or consist of a circumferential ring. The support member preferably forms a whole with the jacket and is
  • the cooking pot rests on or in the mantle, in such a way that no direct contact between the bottom of the saucepan and a flat surface is possible, on which the cooking pot is placed with the mantle.
  • the inner wall of the shell can also be made conical in such a way that the saucepan can be placed almost snugly in the shell.
  • the smallest outer diameter of the cooking pot is preferably smaller than the largest inner diameter of the shell, so that this jacket extends at least with the above-mentioned support element to the bottom of the cooking pot over.
  • the cooking pot with the handles 17 resting on it rests in the space provided for this purpose
  • the cooking pot may have one or more ribs or protuberances with which the cooking pot rests on the mantle, with the inner wall of the mantle at least partially surrounding the outer wall of the cooking pot.
  • At least one spacer is provided which extends between the inner wall of the above-mentioned shell 12 and the upstanding wall 13 of the cooking pot so as to form an air gap between them, with which the thermal insulation is to be improved.
  • Spacer is formed for example by one or more ribs, which is provided on the inner wall of the shell or on the upstanding wall of the cooking pot or are.
  • Figure 1 shows an embodiment with a jacket 12 which is integrally formed at its upper end to the upper end of the pot wall 13.
  • FIG. 2 shows the principle of the invention.
  • the actual cooking pot 1 rests on the shell 12 and is' suspended 'in this way in the jacket on the induction hob 16'.
  • the lines 5 are the induction lines of the
  • the slightly hatched wall 13 is that part of the
  • the dark hatched part 14 is that part of the cookware (mantle), the (as already in a
  • the handle 17 is part of the cooking pot.
  • the handle is part of the jacket. It shows how the cooking pot and the coat fit together.
  • the handles are integrated into the coat. These handles can be realized both as supportive of the handles of the actual cooking pot or as a handle per se.
  • the jacket 12 may be provided with cuts for the handles of a cooking pot.
  • the saucepan is suspended in the mantle with the two handles resting on the mantle recesses. It is obvious that this model can in principle be made to measure for existing cooking pots. By creating openings or grooves, or a combination of the two, at the correct height in the shell, or by incorporating a consumer controllable mechanism, the cooking pot can be hung in the shell at a well-defined distance from the cooking fire.
  • the aforementioned shell shells can be created in numerous forms. It is possible to design stackable jackets as shown in FIG. However, it is also possible to develop a foldable or collapsible system using, for example, narrow slats of plastic and / or natural materials such as wood or other magnetic materials which are transparent to induction.
  • An example is Figure 10, which shows a prototype of narrow wooden slats made of a stretchy or non-stretchable band held together. This version has the additional advantage that this jacket takes up little space when stowed.
  • various concepts are possible: a stackable concept or a design concept that strives for a particularly aesthetic shape that gives the cooking pot a pleasing look.
  • FIG. 6 shows the temperature of the wall of the cooking pot as a function of time.
  • Curve 51 shows the evolution of the temperature of the wall of a reference saucepan. The peak value is 92 ° C.
  • Curve 52 shows the evolution of the temperature of the jacket wall of the cooking instrument described in this invention. It barely reaches 42 ° C, ie a temperature below the pain threshold of 45 ° C.
  • the graph of Figure 7 shows the same curves, but now measured by handles. Both curves are below the temperature at which skin damage occurs.
  • Figure 9 describes the rate of warming up the contents of the cooking pot as a function of height above the induction hotplate.
  • a thermoprobe is placed in the water in the saucepan. The speed of
  • Figure 10 describes the rate of warming and cooling of the contents of the cooking pot, both naked and surrounded by the mantle.
  • the heating takes place at least as fast as the naked saucepan (the slight improvement is due to the better thermal insulation: 21, 81 ° C for the cooking pot in the mantle against 20.81 ° C for the naked saucepan), but the speed of cooling is much lower. In this specific case, even by 30 percent (-1, 37 ° C / minute versus -1, 95 ° C / minute).
  • Figure 11 shows the effect of the color of the inner wall of the jacket.
  • the graph shows that the contents of the cooking pot cool much less quickly if the inner wall of the shell is colored black than if the wall were white.
  • the handles remain about the same warm.
  • the mantle of the black pot becomes a few degrees warmer, which is understandable, since it better holds the heat.
  • the jacket can also be made of a mix of materials without imposing too high requirements for resistance to high temperatures.
  • the cookware does not necessarily have to be cylindrical, it may also have a rectangular or square cross-section and also be conical or have prismatic shape. Also, the inner wall of the shell does not necessarily have to be cylindrical, but it may also have a conical or prismatic shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne une batterie de cuisine pour une plaque de cuisson par induction, la batterie de cuisine comprenant une casserole (11) qui est pourvue d'un fond chauffé par le biais d'un champ électromagnétique alternatif et qui a une paroi de casserole (13) verticale qui est dans le prolongement du fond, la batterie de cuisine présentant une enveloppe (12) extérieure thermiquement isolante qui entoure au moins partiellement la paroi de casserole (13) et le fond, et qui dépasse, par au moins une zone d'enveloppe (B) inférieure et/ou un élément de support, du fond de la casserole vers le bas de telle sorte qu'il existe un interstice (L) ouvert vers le bas entre le fond et le bord inférieur de l'enveloppe pour créer un intervalle entre la face inférieure du fond et la face supérieure de la plaque de cuisson.
PCT/EP2011/003573 2011-07-18 2011-07-18 Batterie de cuisine pour une plaque de cuisson à induction WO2013010555A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/003573 WO2013010555A1 (fr) 2011-07-18 2011-07-18 Batterie de cuisine pour une plaque de cuisson à induction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/003573 WO2013010555A1 (fr) 2011-07-18 2011-07-18 Batterie de cuisine pour une plaque de cuisson à induction

Publications (1)

Publication Number Publication Date
WO2013010555A1 true WO2013010555A1 (fr) 2013-01-24

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Family Applications (1)

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PCT/EP2011/003573 WO2013010555A1 (fr) 2011-07-18 2011-07-18 Batterie de cuisine pour une plaque de cuisson à induction

Country Status (1)

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WO (1) WO2013010555A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD835453S1 (en) 2015-12-22 2018-12-11 Tuesday Morning Partners, Ltd. Cookware basting projections
US10264921B2 (en) 2015-12-22 2019-04-23 Tuesday Morning Partners, Ltd. Cookware lid with basting projections
IT202100003806A1 (it) * 2021-02-18 2022-08-18 Futuredata Srl Dispositivo per l’incremento di efficienza energetica del processo di riscaldamento di una pentola
AT525168B1 (de) * 2021-08-12 2023-01-15 Franz Leibetseder Dipl Ing Walter Kochgeschirr für ein Induktionskochfeld
WO2024086071A1 (fr) * 2022-10-21 2024-04-25 Joon Bu Park Matériaux à coefficient de poisson négatif pour ustensiles de cuisine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR790118A (fr) * 1935-04-08 1935-11-14 Dispositif calorifuge amovible pour récipients de cuisine
US3209746A (en) 1963-01-05 1965-10-05 Giuseppe Fronza Kitchen pot having heat concentrating and insulating thermal bell
US3745290A (en) 1972-03-01 1973-07-10 Gen Electric Inductively heatable utensils or vessels for heating,serving and storing food
US3777094A (en) 1971-09-09 1973-12-04 Environment One Corp Thermally insulated cookware for dynamic induction field heating and cooking apparatus
EP0297412A2 (fr) * 1987-06-29 1989-01-04 Techno-Frontier Ltd. Ustensile de cuisson
JPH0975210A (ja) * 1995-09-13 1997-03-25 Matsushita Electric Ind Co Ltd 調理鍋およびこの調理鍋を使用する加熱調理器
US5643485A (en) 1988-04-15 1997-07-01 Midwest Research Institute Cooking utensil with improved heat retention
CN2702687Y (zh) * 2004-03-25 2005-06-01 薛小军 一种壶
US20090065500A1 (en) * 2007-09-07 2009-03-12 England Raymond O Induction Cookware

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR790118A (fr) * 1935-04-08 1935-11-14 Dispositif calorifuge amovible pour récipients de cuisine
US3209746A (en) 1963-01-05 1965-10-05 Giuseppe Fronza Kitchen pot having heat concentrating and insulating thermal bell
US3777094A (en) 1971-09-09 1973-12-04 Environment One Corp Thermally insulated cookware for dynamic induction field heating and cooking apparatus
US3745290A (en) 1972-03-01 1973-07-10 Gen Electric Inductively heatable utensils or vessels for heating,serving and storing food
EP0297412A2 (fr) * 1987-06-29 1989-01-04 Techno-Frontier Ltd. Ustensile de cuisson
US5643485A (en) 1988-04-15 1997-07-01 Midwest Research Institute Cooking utensil with improved heat retention
JPH0975210A (ja) * 1995-09-13 1997-03-25 Matsushita Electric Ind Co Ltd 調理鍋およびこの調理鍋を使用する加熱調理器
CN2702687Y (zh) * 2004-03-25 2005-06-01 薛小军 一种壶
US20090065500A1 (en) * 2007-09-07 2009-03-12 England Raymond O Induction Cookware

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD835453S1 (en) 2015-12-22 2018-12-11 Tuesday Morning Partners, Ltd. Cookware basting projections
US10264921B2 (en) 2015-12-22 2019-04-23 Tuesday Morning Partners, Ltd. Cookware lid with basting projections
USD882332S1 (en) 2015-12-22 2020-04-28 Tuesday Morning Partners, Ltd. Cookware basting projection
US11382459B2 (en) 2015-12-22 2022-07-12 Tuesday Morning Partners, Ltd. Cookware lid with basting projections
IT202100003806A1 (it) * 2021-02-18 2022-08-18 Futuredata Srl Dispositivo per l’incremento di efficienza energetica del processo di riscaldamento di una pentola
AT525168B1 (de) * 2021-08-12 2023-01-15 Franz Leibetseder Dipl Ing Walter Kochgeschirr für ein Induktionskochfeld
AT525168A4 (de) * 2021-08-12 2023-01-15 Franz Leibetseder Dipl Ing Walter Kochgeschirr für ein Induktionskochfeld
WO2024086071A1 (fr) * 2022-10-21 2024-04-25 Joon Bu Park Matériaux à coefficient de poisson négatif pour ustensiles de cuisine
US11998138B2 (en) 2022-10-21 2024-06-04 Joon Bu Park Negative Poisson's ratio materials for cookware

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