EP3557943A1 - Panel for a cooking hob - Google Patents

Panel for a cooking hob Download PDF

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Publication number
EP3557943A1
EP3557943A1 EP18168383.0A EP18168383A EP3557943A1 EP 3557943 A1 EP3557943 A1 EP 3557943A1 EP 18168383 A EP18168383 A EP 18168383A EP 3557943 A1 EP3557943 A1 EP 3557943A1
Authority
EP
European Patent Office
Prior art keywords
layer
panel
reactive
thermochromic
panel according
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.)
Withdrawn
Application number
EP18168383.0A
Other languages
German (de)
French (fr)
Inventor
Juergen Leikam
Lukasz WASINKIEWICZ
Simone PROBST
Ulrich Häutle
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP18168383.0A priority Critical patent/EP3557943A1/en
Priority to PCT/EP2019/058278 priority patent/WO2019201590A1/en
Publication of EP3557943A1 publication Critical patent/EP3557943A1/en
Withdrawn legal-status Critical Current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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication
    • 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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • 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

Definitions

  • the present invention relates to a panel for a cooking hob. Further, the present invention relates to a cooking hob.
  • a panel for a cooking hob usually includes a static pattern for indicating the positions and sizes of the cooking zones.
  • the static pattern must be adapted to the arrangement of the heating elements.
  • a flexible arrangement of the heating elements is not possible with the same static pattern.
  • the cooking hob may include a display for indicating numerically or graphically the temperatures on the single cooking zones.
  • the display provides only an indirect indication and requires a relative complex circuit.
  • the object is achieved by the panel for a cooking hob according to claim 1.
  • a panel for a cooking hob is provided, wherein:
  • the core of the present invention is the reactive layer depending on electric, electromagnetic and/or thermic parameters.
  • the reactive layer is able to indicate states characterised by said electric, electromagnetic and/or thermic parameters.
  • the panel includes at least one coated layer and/or at least one printed layer.
  • the reactive layer is made of at least one reactive material, which is responsive to an electric field generated by an electric heating element, so that the presence of the electric field is indicated by the reactive layer.
  • the reactive layer is made of at least one reactive material, which is responsive to an electromagnetic field generated by an induction coil, so that the presence of the electromagnetic field is indicated by the reactive layer.
  • the reactive layer is arranged beneath the glass layer.
  • the reactive layer is arranged between the glass layer and a further glass layer.
  • coated layer may be attached at the lower side of the panel.
  • the reactive layer is made of at least one thermochromic or thermoluminescent material, which is responsive to a current temperature, so that the colour of said thermochromic or thermoluminescent material depends on the temperature level.
  • thermochromic or thermoluminescent material becomes green at a low temperature level.
  • thermochromic or thermoluminescent material may become yellow at a medium temperature level.
  • thermochromic or thermoluminescent material may become red at a high temperature level.
  • the reactive layer made of thermochromic or thermoluminescent material is arranged beneath the glass layer.
  • the printed layer may be arranged beneath the reactive layer made of thermochromic or thermoluminescent material.
  • the reactive layer made of thermochromic or thermoluminescent material is arranged above the printed layer, wherein said printed layer in turn is attached above the glass layer.
  • the present invention relates to a cooking hob with at least one panel, wherein the cooking hob comprises at least one panel according to any one the preceding claims.
  • FIG 1 illustrates a schematic sectional side view of a panel 10 for a cooking hob according to a first embodiment of the present invention.
  • the panel 10 of the first embodiment includes a glass layer 12, an electric or electromagnetic reactive layer 14 and a coated layer 16.
  • the electric or electromagnetic reactive layer 14 is arranged beneath the glass layer 12.
  • the coated layer 16 is arranged beneath the electric or electromagnetic reactive layer 14.
  • the electric reactive layer 14 is responsive to an electric field generated by an electric heating element arranged beneath the panel 10. By this way, the cooking zone is indicated by the electric reactive layer 14, when the corresponding electric heating element is activated.
  • the electromagnetic reactive layer 14 is responsive to an electromagnetic field.
  • said electromagnetic field is generated by an induction coil arranged beneath the panel 10.
  • the magnetic field lines extend perpendicular to the plane of the electromagnetic reactive layer 14.
  • FIG 2 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a second embodiment of the present invention.
  • the panel 10 of the second embodiment includes the glass layer 12, the electric or electromagnetic reactive layer 14, a further glass layer 18 and the coated layer 16.
  • the electric or electromagnetic reactive layer 14 is arranged between the two glass layers 12 and 18.
  • the electric or electromagnetic reactive layer 14 indicates the cooking zone, when the corresponding heating element is activated.
  • FIG 3 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a third embodiment of the present invention.
  • the panel 10 of the third embodiment includes the glass layer 12, a thermochromic or thermoluminescent layer 20 and a printed layer 22.
  • the thermochromic or thermoluminescent layer 20 is arranged beneath the glass layer 12.
  • the printed layer 22 is arranged beneath the thermochromic or thermoluminescent layer 20.
  • thermochromic or thermoluminescent layer 20 changes its colour in dependence of the temperature level.
  • the thermochromic layer 20 changes between different colours or from a coloured to transparent in dependence of the temperature level.
  • thermochromic or thermoluminescent layer 20 indicates the current temperature of the corresponding cooking zone.
  • a green thermochromic or thermoluminescent layer 20 indicates a low temperature level
  • a yellow thermochromic or thermoluminescent layer 20 indicates a medium temperature level
  • a red thermochromic or thermoluminescent layer 20 indicates a high temperature level.
  • FIG 4 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a fourth embodiment of the present invention.
  • the panel 10 of the fourth embodiment includes the glass layer 12, the thermochromic layer 20 and the printed layer 22.
  • the printed layer 22 is arranged above the glass layer 12.
  • the thermochromic or thermoluminescent layer 20 is arranged above the printed layer 22.
  • the present invention allows a direct indication of the activated cooking zones and the current temperatures by low complexity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The present invention relates to a panel (10) for a cooking hob. The panel (10) includes at least one glass layer (12, 18). Further, the panel (10) includes at least one reactive layer (14; 20). The reactive layer (14; 20) is made of at least one reactive material, which is responsive to electric, electromagnetic and/or thermic parameters.

Description

  • The present invention relates to a panel for a cooking hob. Further, the present invention relates to a cooking hob.
  • A panel for a cooking hob usually includes a static pattern for indicating the positions and sizes of the cooking zones. However, the static pattern must be adapted to the arrangement of the heating elements. A flexible arrangement of the heating elements is not possible with the same static pattern.
  • Further, the cooking hob may include a display for indicating numerically or graphically the temperatures on the single cooking zones. However, the display provides only an indirect indication and requires a relative complex circuit.
  • It is an object of the present invention to provide a panel for a cooking hob, which allows a direct indication of the cooking zones and/or temperatures by low complexity.
  • The object is achieved by the panel for a cooking hob according to claim 1.
  • According to the present invention a panel for a cooking hob is provided, wherein:
    • the panel includes at least one glass layer, and
    • the panel includes at least one reactive layer, wherein
    • the reactive layer is made of at least one reactive material, which is responsive to electric, electromagnetic and/or thermic parameters.
  • The core of the present invention is the reactive layer depending on electric, electromagnetic and/or thermic parameters. The reactive layer is able to indicate states characterised by said electric, electromagnetic and/or thermic parameters.
  • Preferably, the panel includes at least one coated layer and/or at least one printed layer.
  • For example, the reactive layer is made of at least one reactive material, which is responsive to an electric field generated by an electric heating element, so that the presence of the electric field is indicated by the reactive layer.
  • According to another example, the reactive layer is made of at least one reactive material, which is responsive to an electromagnetic field generated by an induction coil, so that the presence of the electromagnetic field is indicated by the reactive layer.
  • Preferably, the reactive layer is arranged beneath the glass layer.
  • Optionally, the reactive layer is arranged between the glass layer and a further glass layer.
  • Furthermore, the coated layer may be attached at the lower side of the panel.
  • According to a further example, the reactive layer is made of at least one thermochromic or thermoluminescent material, which is responsive to a current temperature, so that the colour of said thermochromic or thermoluminescent material depends on the temperature level.
  • For example, the colour of the thermochromic or thermoluminescent material becomes green at a low temperature level.
  • Further, the colour of the thermochromic or thermoluminescent material may become yellow at a medium temperature level.
  • Moreover, the colour of the thermochromic or thermoluminescent material may become red at a high temperature level.
  • For example, the reactive layer made of thermochromic or thermoluminescent material is arranged beneath the glass layer.
  • Further, the printed layer may be arranged beneath the reactive layer made of thermochromic or thermoluminescent material.
  • Alternatively, the reactive layer made of thermochromic or thermoluminescent material is arranged above the printed layer, wherein said printed layer in turn is attached above the glass layer.
  • Moreover, the present invention relates to a cooking hob with at least one panel, wherein the cooking hob comprises at least one panel according to any one the preceding claims.
  • Novel and inventive features of the present invention are set forth in the appended claims.
  • The present invention will be described in further detail with reference to the drawings, in which
    • FIG 1
    illustrates a schematic sectional side view of a panel for a cooking hob according to a first embodiment of the present invention,
    FIG 2
    illustrates a schematic sectional side view of the panel for the cooking hob according to a second embodiment of the present invention,
    FIG 3
    illustrates a schematic sectional side view of the panel for the cooking hob according to a third embodiment of the present invention, and
    FIG 4
    illustrates a schematic sectional side view of the panel for the cooking hob according to a fourth embodiment of the present invention.
  • FIG 1 illustrates a schematic sectional side view of a panel 10 for a cooking hob according to a first embodiment of the present invention.
  • The panel 10 of the first embodiment includes a glass layer 12, an electric or electromagnetic reactive layer 14 and a coated layer 16. The electric or electromagnetic reactive layer 14 is arranged beneath the glass layer 12. In turn, the coated layer 16 is arranged beneath the electric or electromagnetic reactive layer 14.
  • The electric reactive layer 14 is responsive to an electric field generated by an electric heating element arranged beneath the panel 10. By this way, the cooking zone is indicated by the electric reactive layer 14, when the corresponding electric heating element is activated.
  • The electromagnetic reactive layer 14 is responsive to an electromagnetic field. For example, said electromagnetic field is generated by an induction coil arranged beneath the panel 10. The magnetic field lines extend perpendicular to the plane of the electromagnetic reactive layer 14.
  • FIG 2 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a second embodiment of the present invention.
  • The panel 10 of the second embodiment includes the glass layer 12, the electric or electromagnetic reactive layer 14, a further glass layer 18 and the coated layer 16. In this embodiment, the electric or electromagnetic reactive layer 14 is arranged between the two glass layers 12 and 18.
  • The electric or electromagnetic reactive layer 14 indicates the cooking zone, when the corresponding heating element is activated.
  • FIG 3 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a third embodiment of the present invention.
  • The panel 10 of the third embodiment includes the glass layer 12, a thermochromic or thermoluminescent layer 20 and a printed layer 22. The thermochromic or thermoluminescent layer 20 is arranged beneath the glass layer 12. In turn, the printed layer 22 is arranged beneath the thermochromic or thermoluminescent layer 20.
  • The thermochromic or thermoluminescent layer 20 changes its colour in dependence of the temperature level. The thermochromic layer 20 changes between different colours or from a coloured to transparent in dependence of the temperature level.
  • The colour of the thermochromic or thermoluminescent layer 20 indicates the current temperature of the corresponding cooking zone. For example, a green thermochromic or thermoluminescent layer 20 indicates a low temperature level, while a yellow thermochromic or thermoluminescent layer 20 indicates a medium temperature level. Preferably, a red thermochromic or thermoluminescent layer 20 indicates a high temperature level.
  • FIG 4 illustrates a schematic sectional side view of the panel 10 for the cooking hob according to a fourth embodiment of the present invention.
  • The panel 10 of the fourth embodiment includes the glass layer 12, the thermochromic layer 20 and the printed layer 22. The printed layer 22 is arranged above the glass layer 12. In turn, the thermochromic or thermoluminescent layer 20 is arranged above the printed layer 22.
  • The present invention allows a direct indication of the activated cooking zones and the current temperatures by low complexity.
  • Although illustrative embodiments of the present invention have been described herein with reference to the accompanying drawings, it is to be understood that the present invention is not limited to those precise embodiments, and that various other changes and modifications may be affected therein by one skilled in the art without departing from the scope or spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as defined by the appended claims.
    • List of reference numerals
    • 10
    panel
    12
    glass layer
    14
    electric or electromagnetic reactive layer
    16
    coated layer
    18
    further glass layer
    20
    thermochromic or thermoluminescent layer
    22
    printed layer

Claims (15)

  1. A panel (10) for a cooking hob, wherein:
    - the panel (10) includes at least one glass layer (12, 18), and
    - the panel (10) includes at least one reactive layer (14; 20), wherein
    - the reactive layer (14; 20) is made of at least one reactive material, which is responsive to electric, electromagnetic and/or thermic parameters.
  2. The panel according to claim 1,
    characterised in that
    the panel (10) includes at least one coated layer (16) and/or at least one printed layer (22).
  3. The panel according to claim 1 or 2,
    characterised in that
    the reactive layer (14) is made of at least one reactive material, which is responsive to an electric field generated by an electric heating element, so that the presence of the electric field is indicated by the reactive layer (14).
  4. The panel according to claim 1 or 2,
    characterised in that
    the reactive layer (14) is made of at least one reactive material, which is responsive to an electromagnetic field generated by an induction coil, so that the presence of the electromagnetic field is indicated by the reactive layer (14) .
  5. The panel according to claim 3 or 4,
    characterised in that
    the reactive layer (14) is arranged beneath the glass layer (12) .
  6. The panel according to any one of the claims 3 to 5,
    characterised in that
    the reactive layer (14) is arranged between the glass layer (12) and a further glass layer (18).
  7. The panel according to any one of the claims 3 to 6,
    characterised in that
    the coated layer (16) is attached at the lower side of the panel (10).
  8. The panel according to claim 1 or 2,
    characterised in that
    the reactive layer (20) is made of at least one thermochromic or thermoluminescent material, which is responsive to a current temperature, so that the colour of said thermochromic or thermoluminescent material depends on the temperature level.
  9. The panel according to claim 8,
    characterised in that
    the colour of the thermochromic or thermoluminescent material becomes green at a low temperature level.
  10. The panel according to claim 8 or 9,
    characterised in that
    the colour of the thermochromic or thermoluminescent material becomes yellow at a medium temperature level.
  11. The panel according to any one of the claims 8 to 10,
    characterised in that
    the colour of the thermochromic or thermoluminescent material becomes red at a high temperature level.
  12. The panel according to any one of the claims 8 to 11,
    characterised in that
    the reactive layer (20) made of thermochromic or thermoluminescent material is arranged beneath the glass layer (12).
  13. The panel according to claim 12,
    characterised in that
    the printed layer (22) is arranged beneath the reactive layer (20) made of thermochromic or thermoluminescent material.
  14. The panel according to any one of the claims 8 to 11,
    characterised in that
    the reactive layer (20) made of thermochromic or thermoluminescent material is arranged above the printed layer (22), wherein said printed layer (22) in turn is attached above the glass layer (12).
  15. A cooking hob with at least one panel (10),
    characterised in that
    the cooking hob comprises at least one panel (10) according to any one the preceding claims.
EP18168383.0A 2018-04-20 2018-04-20 Panel for a cooking hob Withdrawn EP3557943A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18168383.0A EP3557943A1 (en) 2018-04-20 2018-04-20 Panel for a cooking hob
PCT/EP2019/058278 WO2019201590A1 (en) 2018-04-20 2019-04-02 Panel for a cooking hob

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18168383.0A EP3557943A1 (en) 2018-04-20 2018-04-20 Panel for a cooking hob

Publications (1)

Publication Number Publication Date
EP3557943A1 true EP3557943A1 (en) 2019-10-23

Family

ID=62046676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18168383.0A Withdrawn EP3557943A1 (en) 2018-04-20 2018-04-20 Panel for a cooking hob

Country Status (2)

Country Link
EP (1) EP3557943A1 (en)
WO (1) WO2019201590A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4175410A1 (en) 2021-10-28 2023-05-03 Electrolux Appliances Aktiebolag Modular coil with light device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6150636A (en) * 1997-01-10 2000-11-21 E.G.O. Elektro-Geraetebau Gmbh Contact heat-transferring cooking system with an electric hotplate
US20030006227A1 (en) * 2001-02-21 2003-01-09 Lerner William S. Enhanced visibility heat alert safety device for hot surfaces
WO2008012013A1 (en) * 2006-07-28 2008-01-31 Electrolux Home Products Corporation N.V. Household broiling and/or baking oven
WO2010069791A1 (en) * 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Illuminated hot plate
WO2011086504A2 (en) * 2010-01-13 2011-07-21 BSH Bosch und Siemens Hausgeräte GmbH Household appliance
EP2587166A2 (en) * 2011-10-24 2013-05-01 E.G.O. ELEKTRO-GERÄTEBAU GmbH Cooking apparatus and method for visual display of a temperature on a cooking appliance
EP2642821A1 (en) * 2012-03-21 2013-09-25 BSH Bosch und Siemens Hausgeräte GmbH Method for operating an induction cooker and induction cooker
EP2653785A1 (en) * 2012-04-16 2013-10-23 Whirlpool Corporation Lighted signals to provide direction to user

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6150636A (en) * 1997-01-10 2000-11-21 E.G.O. Elektro-Geraetebau Gmbh Contact heat-transferring cooking system with an electric hotplate
US20030006227A1 (en) * 2001-02-21 2003-01-09 Lerner William S. Enhanced visibility heat alert safety device for hot surfaces
WO2008012013A1 (en) * 2006-07-28 2008-01-31 Electrolux Home Products Corporation N.V. Household broiling and/or baking oven
WO2010069791A1 (en) * 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Illuminated hot plate
WO2011086504A2 (en) * 2010-01-13 2011-07-21 BSH Bosch und Siemens Hausgeräte GmbH Household appliance
EP2587166A2 (en) * 2011-10-24 2013-05-01 E.G.O. ELEKTRO-GERÄTEBAU GmbH Cooking apparatus and method for visual display of a temperature on a cooking appliance
EP2642821A1 (en) * 2012-03-21 2013-09-25 BSH Bosch und Siemens Hausgeräte GmbH Method for operating an induction cooker and induction cooker
EP2653785A1 (en) * 2012-04-16 2013-10-23 Whirlpool Corporation Lighted signals to provide direction to user

Also Published As

Publication number Publication date
WO2019201590A1 (en) 2019-10-24

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