EP0637898A1 - Plan de travail et de cuisson - Google Patents

Plan de travail et de cuisson Download PDF

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Publication number
EP0637898A1
EP0637898A1 EP94107945A EP94107945A EP0637898A1 EP 0637898 A1 EP0637898 A1 EP 0637898A1 EP 94107945 A EP94107945 A EP 94107945A EP 94107945 A EP94107945 A EP 94107945A EP 0637898 A1 EP0637898 A1 EP 0637898A1
Authority
EP
European Patent Office
Prior art keywords
hob
stone
worktop
induction
control
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
EP94107945A
Other languages
German (de)
English (en)
Other versions
EP0637898B1 (fr
Inventor
Kolja Kuse
Eduard Schramm
Paul Dr. Grohs
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.)
Individual
Original Assignee
Individual
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
Priority to ES94107945T priority Critical patent/ES2086977T3/es
Application filed by Individual filed Critical Individual
Priority to EP94107945A priority patent/EP0637898B1/fr
Priority to AT94107945T priority patent/ATE136722T1/de
Priority to DE59400190T priority patent/DE59400190D1/de
Priority to DK94107945.1T priority patent/DK0637898T3/da
Publication of EP0637898A1 publication Critical patent/EP0637898A1/fr
Priority to US08/596,335 priority patent/US6080975A/en
Priority to PCT/EP1995/001858 priority patent/WO1995033359A1/fr
Priority to AU25648/95A priority patent/AU2564895A/en
Application granted granted Critical
Publication of EP0637898B1 publication Critical patent/EP0637898B1/fr
Priority to GR960401839T priority patent/GR3020472T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like

Definitions

  • the invention relates to the field of kitchen technology. Specifically, the invention relates to the design of a kitchen worktop as a hob, which combines the functions of a stove and worktop in a new way.
  • a hob based on the principle of inductive heating is integrated into a kitchen worktop made of stone, for example granite, without the usual continuous cut-outs in the worktop, which, when the worktop is not used as a stove, is fully used as a worktop is available.
  • This type of seamless integration of the hob and stone worktop improves the durability of the hob and makes it much easier to care for and clean it.
  • the open flame has always been the most important source of the heat required for cooking.
  • gas stoves Despite their indispensability when cooking, gas stoves have the disadvantage that considerable mechanical effort is required to generate the flame on the hob in order to be able to provide an accident-proof gas flame.
  • the magnetic induction method makes it possible to pass through a suitable medium, e.g. Glass ceramic to transfer energy.
  • a suitable medium e.g. Glass ceramic
  • This method makes use of modern induction hobs by generating a magnetic flux through a glass ceramic plate in a suitable pot material, which heats the pot directly and thus no longer transfers the heat from the hob to the pot, but on the contrary, the heat inside Pot is generated itself and only then radiates residual heat back onto the hob.
  • this method on the one hand achieves a significant reduction in the total heat loss generated during the cooking process.
  • much more important for the cooking itself is the fact that a change in the induction flow, just like in gas cooking, has a spontaneous effect on the change in the energy supplied.
  • the magnetic flux in the induction cooker is generated by a simple coil through which a high-frequency alternating current flows.
  • the energy supply can be regulated very finely metered using a suitable commercially available electronic circuit.
  • the time behavior of the change in the energy supply to the food is similar to that of cooking with gas, usually even better.
  • the task arises of integrating the hob as completely as possible into the worktop, so that a homogeneous and easy-to-clean surface is created which, due to the additional usability of the hob as a worktop, is able to co-operate the worktop areas to the right and left of the hob to connect the actual hob to a continuous worktop.
  • An additional task is to improve the durability and service life of cooktop surfaces and to reduce the surface temperature of induction cooktops.
  • a reduction in the surface temperature in turn creates new possibilities for using temperature measuring devices on the hob, which in turn pose new tasks for temperature monitoring of cooking processes on the hob , which are already used today in modern baking tubes and microwave ovens.
  • This object is achieved by the combination of a stone plate (granite plate) which is intact with respect to the surface and one or more induction coils located under the stone, which are arranged at a sufficiently short distance from the surface to generate the magnetic flux density in the pot which is necessary for the transmission of the power .
  • the pot is simply placed on the granite plate for cooking. This location can be marked on the plate with a suitable marking, for example a limited number of small metallic spacers, which are embedded in the granite surface and provide thermal insulation with the aid of air. Alternatively, removable spacers can be used. If the thermal load-bearing capacity of the granite used in each case permits this, it is also possible to dispense with such spacers.
  • the flat surface of a continuous worktop remains, which is very easy to clean due to its insensitivity to dirt and the seamless surface.
  • the actual cooktop can then be used as a working area using all the advantages of the stone material.
  • Another advantage is the better heat distribution, since in contrast to thin glass ceramic fields, the heat is typically not only horizontally but also vertically dissipated in the stone, which is typically 4 centimeters thick, which results in a reduction in the temperature at the surface.
  • the reduction in surface temperature can be achieved by introducing the above Spacers are also supported. This keeps the zones around the pot lukewarm.
  • These comparatively low temperatures on the hob allow the use of temperature measuring devices on the hob without damaging the supply line required for the measurement by means of a temperature sensor due to thermal overload.
  • This temperature measurement signal can be fed into a control circuit which enables automatic temperature monitoring or control under computer control. When using a freely programmable computer control, it is possible to automatically carry out cooking processes and to save temperature changes to be carried out on suitable electronic media and, if necessary, to reproduce them identically.
  • the result is a stove that can be used universally with additional functions thanks to the new feature of full integration in the kitchen worktop.
  • the effort for maintenance and cleanliness is reduced and additional working space is gained while increasing the service life of the surface.
  • milling (o) is first introduced into the stone slab (1) at the intended locations, the diameter of which is adapted to the diameter of the induction coils (2) used.
  • the remaining wall thickness of the worktop towards the surface is selected so that, on the one hand, the highest possible energy transfer to the metal pot can take place and, on the other hand, sufficient mechanical strength of the stone in the area of the milling is ensured.
  • the wall thickness should not fall below a certain value (7 mm for most types of granite).
  • the milling In order to support a favorable pressure and tensile stress distribution when the stone is heated, the milling should have rounded edges to avoid notching.
  • the radius of curvature 'r' depends on the thickness of the granite slab used and the individual shape of the slab.
  • An alternative to counteract the high mechanical stress of the stone under the influence of heat and thus prevent cracking is a sandwich construction, in which e.g. a continuous, approx. 3 mm thick, carbon fiber plastic plate (17) is glued between two granite plates of the same thickness.
  • Carbon fiber composite materials have the advantage that they have similar expansion coefficients and the same expansion behavior as granite, but in contrast to granite have a high tensile strength. Since the cracking typically runs radially to the center of the hob, the direction of the carbon fiber course should therefore, if possible, be perpendicular to the radius of the hob and thus to the possible crack course in order to absorb the expansion forces of the stone.
  • the coil (2) itself is glued together with a thin mica disc (3) with a temperature-resistant casting compound (9), for example epoxy resin with carbon fiber insert.
  • the carbon fiber serves to mechanically stabilize the thin stone bridge in the area of the cutout and the mica disc protects the coil against overheating.
  • a tailor-made inlet (5) made of the same stone material as the actual worktop is then inserted into the remaining cavity. All joints are filled with the potting compound and carbon fiber (9), which after the Hardening mechanically stabilizes the arrangement and protects the stone against breakage due to thermal stress and impact.
  • Spacers (7) can optionally be embedded in the stone slab in order to provide additional thermal insulation through an air gap between the stone slab and the pot, if necessary.
  • connection (4) of the induction coil, as well as any other electrical lines required, such as for connecting a temperature sensor to avoid excess temperature in the stone, are either led out through the separation gap between the worktop and inlet or through a hole in the inlet and fed to control electronics.
  • the coil is provided with ferrite cores (8) on the underside.
  • the commercially available control unit for the induction coil is installed in a space-saving manner at any location, regardless of the location of the cooker, even as far away from it as possible due to the development of heat, and is regulated by a commercially available personal computer (PC) used as an on-board computer (15).
  • PC personal computer
  • the controlled variable is the signal supplied by a temperature sensor (13) placed in the food to be cooked, which signal is fed to the PC using a conventional A / D converter (16).
  • the control panel of the cooker with the temperature controls provided for manual operation is in turn installed at a suitable location in the kitchen, regardless of the location of the control electronics, preferably in the extractor hood located above the hob.
  • an optional, removable and, as shown in FIG. 3, appropriately shaped child safety bracket (14) is attached to the washers (12) under the kitchen worktop.
  • FIGS. 1 and 2 A preferred embodiment of the invention is shown schematically in FIGS. 1 and 2. It designates (1) the stone slab with milling, (2) the induction coil with mica slab (3) and electrical connections (4), (5) the stabilizing stone inlet and the metal fittings (6) embedded in the granite slab (1), (11) and (12).
  • Fig. 2 also shows the optional reinforcement with dashed carbon fiber insert (17).
  • Fig. 3 shows the granite slab with the spacers (7) and the child safety bar (14) from above.
  • Fig. 4 shows the inserted metal fittings for stabilizing the stone in section from the side with the attachment of the child safety bracket under the granite slab.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
  • Table Devices Or Equipment (AREA)
  • Inorganic Insulating Materials (AREA)
  • Combinations Of Kitchen Furniture (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Electric Stoves And Ranges (AREA)
  • General Induction Heating (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Massaging Devices (AREA)
  • Electric Ovens (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
EP94107945A 1994-05-24 1994-05-24 Plan de travail et de cuisson Expired - Lifetime EP0637898B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP94107945A EP0637898B1 (fr) 1994-05-24 1994-05-24 Plan de travail et de cuisson
AT94107945T ATE136722T1 (de) 1994-05-24 1994-05-24 Arbeitsplattenkochfeld
DE59400190T DE59400190D1 (de) 1994-05-24 1994-05-24 Arbeitsplattenkochfeld
DK94107945.1T DK0637898T3 (da) 1994-05-24 1994-05-24 Køkkenbordplade med integreret kogefelt
ES94107945T ES2086977T3 (es) 1994-05-24 1994-05-24 Plancha de trabajo y de coccion.
PCT/EP1995/001858 WO1995033359A1 (fr) 1994-05-24 1995-05-16 Plaque de cuisson et plan de travail combines
US08/596,335 US6080975A (en) 1994-05-24 1995-05-16 Kitchen workplate with integrated cooking field
AU25648/95A AU2564895A (en) 1994-05-24 1995-05-16 Combined worktop and hot plate
GR960401839T GR3020472T3 (en) 1994-05-24 1996-07-08 Working and cooking surface.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94107945A EP0637898B1 (fr) 1994-05-24 1994-05-24 Plan de travail et de cuisson

Publications (2)

Publication Number Publication Date
EP0637898A1 true EP0637898A1 (fr) 1995-02-08
EP0637898B1 EP0637898B1 (fr) 1996-04-10

Family

ID=8215957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107945A Expired - Lifetime EP0637898B1 (fr) 1994-05-24 1994-05-24 Plan de travail et de cuisson

Country Status (9)

Country Link
US (1) US6080975A (fr)
EP (1) EP0637898B1 (fr)
AT (1) ATE136722T1 (fr)
AU (1) AU2564895A (fr)
DE (1) DE59400190D1 (fr)
DK (1) DK0637898T3 (fr)
ES (1) ES2086977T3 (fr)
GR (1) GR3020472T3 (fr)
WO (1) WO1995033359A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030567A1 (fr) * 1996-02-16 1997-08-21 Kolja Kuse Ensemble de table de cuisson a induction presentant une surface en pierre servant de plan de travail pour la cuisine
WO1998041064A2 (fr) * 1997-03-13 1998-09-17 Aktiebolaget Electrolux Table de cuisson a elements de chauffage par induction
EP0921708A1 (fr) * 1997-11-19 1999-06-09 Therma Grossküchen Produktion AG Cuisinière inductive pour un récipient de cuisson ferromagnétique
WO1999041949A2 (fr) * 1998-02-10 1999-08-19 Aktiebolaget Electrolux Dessus de cuisiniere
WO2005072013A1 (fr) * 2004-01-21 2005-08-04 BSH Bosch und Siemens Hausgeräte GmbH Dispositif pour rechauffer des plats par couplage inductif et dispositif de transfert d'energie
DE102013200372A1 (de) 2013-01-14 2014-07-17 BSH Bosch und Siemens Hausgeräte GmbH Kochfeld, Küchenarbeitsplatte mit einem integrierten Kochfeld und Küchenzeile
EP3032917A1 (fr) * 2014-12-12 2016-06-15 Groku Kampen B.V. Assemblage de cuisson d'une plaque de cuisson et un ou plusieurs éléments chauffants et une plaque de cuisson
WO2017065633A1 (fr) * 2015-10-14 2017-04-20 Сергей Викторович ВИНОГРАДОВ Plan de travail
BE1023679B1 (nl) * 2014-12-12 2017-06-13 Groku Kampen Bv Kooksamenstel van een kookwerkblad en één of meedere inductiekookinrichtingen en een kookwerkblad
EA027611B1 (ru) * 2015-10-14 2017-08-31 Сергей Викторович ВИНОГРАДОВ Столешница
WO2019120601A1 (fr) * 2017-05-02 2019-06-27 Kolja Kuse Dispositif à deux ou plusieurs plaques stratifiées en pierre naturelle
WO2020034011A1 (fr) * 2018-08-17 2020-02-20 Marc Danze Système et procédé de surface de cuisson
CN111706883A (zh) * 2020-05-13 2020-09-25 宁波方太厨具有限公司 一种集成灶

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE271749T1 (de) * 2001-03-09 2004-08-15 Inducs A G Vorrichtung und verfahren zum warmhalten von speisen
ES2555116T3 (es) * 2002-08-07 2015-12-29 Panasonic Corporation Aparato de calentamiento por inducción
US20050006379A1 (en) * 2003-07-07 2005-01-13 Sullivan Steven Leo Invisable stove top
US20060005548A1 (en) * 2004-07-08 2006-01-12 Keith Ruckstuhl Countertop thermoelectric assembly
US20060059823A1 (en) * 2004-08-27 2006-03-23 Wright Victor M Wood cooking plank with easy to use split closure
US11245287B2 (en) 2006-03-23 2022-02-08 Philips Ip Ventures B.V. Inductive power supply with device identification
US7989986B2 (en) * 2006-03-23 2011-08-02 Access Business Group International Llc Inductive power supply with device identification
US7355150B2 (en) 2006-03-23 2008-04-08 Access Business Group International Llc Food preparation system with inductive power
DE102006047972A1 (de) * 2006-10-10 2008-04-17 Grani-Pur Gmbh Funktions- und Arbeitsplatte
GB2492010A (en) 2010-04-08 2012-12-19 Access Business Group Int Llc Point of sale inductive systems and methods
ES2618810B1 (es) 2015-12-17 2018-04-06 Bsh Electrodomésticos España, S.A. Dispositivo subyacente previsto para disponerse entre una batería de cocción y un campo de cocción
EP3214897B1 (fr) * 2016-03-01 2019-04-10 Adventys Chauffage par induction magnetique avec entretoise
WO2018143835A1 (fr) * 2017-02-02 2018-08-09 Сергей Викторович ВИНОГРАДОВ Table avec plaque à induction intégrée
RU171893U1 (ru) * 2017-02-02 2017-06-20 Сергей Викторович Виноградов Столешница с интегрированной индукционной плитой
IT201800006548A1 (it) * 2018-06-21 2019-12-21 Piano di lavoro particolarmente adatto a venire impiegato su cucine
DE102019220288A1 (de) 2019-12-19 2021-06-24 BSH Hausgeräte GmbH Küchenanordnung und Dunstabzugsvorrichtung
BE1028804B1 (nl) 2020-11-16 2022-06-13 Novy Int Nv Een inductiekookinrichting en een kooksamenstel dat deze omvat
EP4429407A1 (fr) 2023-03-08 2024-09-11 Novy Procédé de fixation d'un appareil de cuisson à induction sous un plan de travail

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE2306037A1 (de) * 1973-02-08 1974-08-15 Environment One Corp Elektrischer kuechenherd
GB2145245A (en) * 1983-07-08 1985-03-20 Sanyo Electric Co Induction heating cooking apparatus
DE3817438A1 (de) * 1988-05-21 1989-11-30 Schock & Co Gmbh Induktionskochfeld
DE4312975C1 (de) * 1993-04-21 1994-05-05 Herchenbach Wolfgang Induktions-Koch-System mit Kochgeschirr

Family Cites Families (8)

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US3740513A (en) * 1971-09-23 1973-06-19 Environment One Corp Improved consumer oriented combined counter and cooking unit using induction heating
US4206336A (en) * 1974-12-05 1980-06-03 Cunningham Ronald J Control apparatus primarily intended for use with stoves employing induction heating
US4453068A (en) * 1979-05-01 1984-06-05 Rangaire Corporation Induction cook-top system and control
JPS579093A (en) * 1980-06-17 1982-01-18 Matsushita Electric Ind Co Ltd Induction heating cooking device
FR2609533B1 (fr) * 1987-01-13 1990-05-25 Cableco Sa Plan de cuisson electrique a chauffage a induction
US4910372A (en) * 1989-04-04 1990-03-20 Vukich Beth B Induction based food warming and serving table
US5313049A (en) * 1990-10-01 1994-05-17 Butagaz Cooking top cover with motorized retractable closure means assembly
DE4224405A1 (de) * 1992-03-14 1993-09-16 Ego Elektro Blanc & Fischer Induktive kochstellenbeheizung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2306037A1 (de) * 1973-02-08 1974-08-15 Environment One Corp Elektrischer kuechenherd
GB2145245A (en) * 1983-07-08 1985-03-20 Sanyo Electric Co Induction heating cooking apparatus
DE3817438A1 (de) * 1988-05-21 1989-11-30 Schock & Co Gmbh Induktionskochfeld
DE4312975C1 (de) * 1993-04-21 1994-05-05 Herchenbach Wolfgang Induktions-Koch-System mit Kochgeschirr

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030567A1 (fr) * 1996-02-16 1997-08-21 Kolja Kuse Ensemble de table de cuisson a induction presentant une surface en pierre servant de plan de travail pour la cuisine
US5973303A (en) * 1996-02-16 1999-10-26 Kuse; Kolja Induction cooking device with stone surface for use as a work surface top
WO1998041064A2 (fr) * 1997-03-13 1998-09-17 Aktiebolaget Electrolux Table de cuisson a elements de chauffage par induction
WO1998041064A3 (fr) * 1997-03-13 1998-12-17 Electrolux Ab Table de cuisson a elements de chauffage par induction
US6369370B1 (en) 1997-03-13 2002-04-09 Aktiebolaget Electrolux Table top with induction heating elements having pole pieces cast in situ
AU746176B2 (en) * 1997-03-13 2002-04-18 Aktiebolaget Electrolux A table top with induction heating elements
EP1029426B1 (fr) * 1997-03-13 2005-02-16 Aktiebolaget Electrolux Table de cuisson a elements de chauffage par induction
EP0921708A1 (fr) * 1997-11-19 1999-06-09 Therma Grossküchen Produktion AG Cuisinière inductive pour un récipient de cuisson ferromagnétique
WO1999041949A2 (fr) * 1998-02-10 1999-08-19 Aktiebolaget Electrolux Dessus de cuisiniere
WO1999041949A3 (fr) * 1998-02-10 1999-10-14 Electrolux Ab Dessus de cuisiniere
WO2005072013A1 (fr) * 2004-01-21 2005-08-04 BSH Bosch und Siemens Hausgeräte GmbH Dispositif pour rechauffer des plats par couplage inductif et dispositif de transfert d'energie
DE102013200372A1 (de) 2013-01-14 2014-07-17 BSH Bosch und Siemens Hausgeräte GmbH Kochfeld, Küchenarbeitsplatte mit einem integrierten Kochfeld und Küchenzeile
WO2014108521A1 (fr) 2013-01-14 2014-07-17 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson, plan de travail de cuisine avec plaque de cuisson intégrée et bloc-cuisine
EP3032917A1 (fr) * 2014-12-12 2016-06-15 Groku Kampen B.V. Assemblage de cuisson d'une plaque de cuisson et un ou plusieurs éléments chauffants et une plaque de cuisson
BE1023679B1 (nl) * 2014-12-12 2017-06-13 Groku Kampen Bv Kooksamenstel van een kookwerkblad en één of meedere inductiekookinrichtingen en een kookwerkblad
WO2017065633A1 (fr) * 2015-10-14 2017-04-20 Сергей Викторович ВИНОГРАДОВ Plan de travail
EA027611B1 (ru) * 2015-10-14 2017-08-31 Сергей Викторович ВИНОГРАДОВ Столешница
WO2019120601A1 (fr) * 2017-05-02 2019-06-27 Kolja Kuse Dispositif à deux ou plusieurs plaques stratifiées en pierre naturelle
WO2020034011A1 (fr) * 2018-08-17 2020-02-20 Marc Danze Système et procédé de surface de cuisson
CN111706883A (zh) * 2020-05-13 2020-09-25 宁波方太厨具有限公司 一种集成灶

Also Published As

Publication number Publication date
US6080975A (en) 2000-06-27
EP0637898B1 (fr) 1996-04-10
GR3020472T3 (en) 1996-10-31
ATE136722T1 (de) 1996-04-15
ES2086977T3 (es) 1996-07-01
WO1995033359A1 (fr) 1995-12-07
DE59400190D1 (de) 1996-05-15
AU2564895A (en) 1995-12-21
DK0637898T3 (da) 1996-07-29

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