EP2026631A1 - Gargerät, insbesondere Haushaltsgargerät - Google Patents

Gargerät, insbesondere Haushaltsgargerät Download PDF

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Publication number
EP2026631A1
EP2026631A1 EP07016159A EP07016159A EP2026631A1 EP 2026631 A1 EP2026631 A1 EP 2026631A1 EP 07016159 A EP07016159 A EP 07016159A EP 07016159 A EP07016159 A EP 07016159A EP 2026631 A1 EP2026631 A1 EP 2026631A1
Authority
EP
European Patent Office
Prior art keywords
cooking appliance
cooking
control unit
appliance according
adjustment
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Withdrawn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
EP07016159A
Other languages
English (en)
French (fr)
Inventor
Harald Hoffmann
Bernd Buck
Werner Echtler
Jürgen Leikam
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 Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP07016159A priority Critical patent/EP2026631A1/de
Publication of EP2026631A1 publication Critical patent/EP2026631A1/de
Withdrawn legal-status Critical Current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
    • H05B6/06—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 a cooking appliance, especially to a domestic cooking appliance, having at least one induction heating element and a control unit, wherein the control unit has at least one adjustment knob by which a shaft can be rotated which is connected to an adjustment device for a cooking parameter, which is part of the control unit.
  • Cooking appliances of this kind are known. Reference is made to DE 297 01 430 U1 . There, an induction hob is disclosed. The heating intensity is adjusted by an adjustment knob which rotates a shaft. The shaft is connected to an adjustment device and regulates the heating intensity of the hob.
  • induction hobs are using a touch electronic or an electronic knob system. Instead of a rotary system there is no mechanical corresponding of the position of the power level of the induction hob.
  • a cooking appliance especially a domestic cooking appliance, of the kind mentioned above having at least one induction heating element and at least one adjustment knob by which a shaft can be rotated, so that it allows an easy use and a good mechanical feedback in adjusting cooking parameters. Also, is should become possibly to easy connect the device with the cooperating electronic components to allow an easy assembly and cheap production.
  • a solution of this object according to the invention is characterized in that the adjustment device comprises a resistance element which is connected to an analogue/digital converter, wherein the digital signal of the analogue/digital converter is communicating with a control element by means of a bus system.
  • the resistance element can be connected to means for supplying a stable voltage.
  • the resistance element is preferably a resistance potentiometer. This can have a defined minimum and maximum position.
  • the resistance element can be a resistance switch.
  • the adjustment device can comprise a rotating pulse encoder emitting at least two signals and means for evaluating the signals in order to determine the direction of rotation and the amount or angle of rotation.
  • the adjustment knob and/or the shaft and/or the adjustment device and/or the resistance potentiometer and/or the resistance switch and/or the rotary pulse encoder have or has a defined minimum position and/or a defined maximum position, which can especially be defined by mechanical limiting or stopping means.
  • a plurality of induction heating elements is arranged in the appliance.
  • the appliance can have a panel-shaped stove or cooking top; this is beneficially a ceramic or glass ceramic stove top.
  • the shaft usually penetrates the stove top. Then, the shaft is preferably sealed against the stove top by a seal device.
  • a plurality of adjustment knobs, shafts and adjustment devices can be arranged in a common frame.
  • the induction hob according to the invention using rotaries combines the advantages of an easy to use appliance with high performance and high safety for the user.
  • the electronic features can be implemented like an automatic boost function.
  • Safety functions can easily be established like low glass temperatures, pot detection or automatic power off.
  • the full advantages of the induction heating can be used like fast heat-up, high power and high efficiency.
  • children lock functions can be employed.
  • An advantage of the system is the position depending control of power levels of the induction hob. In comparison to endless rotaries this input system gives mechanical feedback via the limitation on minimum and maximum positions.
  • the power level can be adjusted via a display or the printing on knobs or the glass ceramic top.
  • a domestic cooking appliance 1 is depicted. It has four induction heating elements 2, 3, 4, and 5.
  • a control unit 6 is supplied for adjusting the operational parameters of the heating elements, especially the power of the elements 2, 3, 4, 5, a control unit 6 is supplied.
  • the control unit 6 has a plurality of adjustments knobs 7; the number corresponds to the number of heating elements 2, 3, 4, 5.
  • Each adjustment knob 7 has a shaft 8 which penetrated a stove top 14, which is made from glass ceramic.
  • the shaft 8 is connected to an adjustment device 9 (see especially FIG 2 ).
  • the adjustment device 9 is connected to means 13 which supply a stable voltage.
  • the adjustment device 9 is a potentiometer in the depicted embodiment a respective voltage is outputted from the adjustment device 9 to an analogue/digital converter 10 which transfers the outputted analogue voltage into a digital signal.
  • the potentiometer 9 has a minimum and a maximum turning position, i. e. the knob 7 can be turned between two extreme positions.
  • the use of the system is convenient for user which have problems in using cooking appliances having touch control elements or endless turn able knobs only.
  • the transferred digital signal which is outputted from the analogue/digital converter 10 it fed to a control element 11 by means of a bus system 12. Bus systems as such are well known in the prior art.
  • the control element 11 in turn is in electrical connection with the heating elements 2, 3, 4, 5.
  • the four adjustment knobs 7 with their adjustment devices 9 are mounted in a frame 16 which is mounted in turn in the hob below the ceramic stove top 14.
  • the bores in the stove top 14 for the shafts 8 are sealed in a suitable manner by a seal device 15.
  • the invention suggests an induction hob with rotaries. These rotaries are changing the mechanical position of the rotaries into an electrical signal.
  • the position of the rotary is calculated via an analogue/digital converter into a digital signal. This signal is used to communicate via a bus system to the induction electronics.
  • the hob can be supported with at least one rotary to control the at least one induction zone.
  • the body of the rotary is preferably mounted in the inner side of the hob and is contacted via wires or via direct contact to the electronic that evaluates the position of the rotaries.
  • the axes of the rotaries are guided through the glass ceramic to the knobs on the top of the hob.
  • the gaskets (seals) are protecting the hob against liquids. Sealing elements for hobs are also known as such; the man skilled in the art will find suitable solutions in the prior art.
  • the adjustment device 9 can comprise also a rotating pulse encoder instead of a resistance element or potentiometer.
  • a rotating pulse encoder usually generates at least two pulsed signals and these signals are evaluated and serve to determine the direction of rotation and the amount or angle of rotation by incrementing or decrementing

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
EP07016159A 2007-08-17 2007-08-17 Gargerät, insbesondere Haushaltsgargerät Withdrawn EP2026631A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07016159A EP2026631A1 (de) 2007-08-17 2007-08-17 Gargerät, insbesondere Haushaltsgargerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07016159A EP2026631A1 (de) 2007-08-17 2007-08-17 Gargerät, insbesondere Haushaltsgargerät

Publications (1)

Publication Number Publication Date
EP2026631A1 true EP2026631A1 (de) 2009-02-18

Family

ID=38988070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07016159A Withdrawn EP2026631A1 (de) 2007-08-17 2007-08-17 Gargerät, insbesondere Haushaltsgargerät

Country Status (1)

Country Link
EP (1) EP2026631A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113633155A (zh) * 2020-04-27 2021-11-12 佛山市顺德区美的电热电器制造有限公司 烹饪组件和控制方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318645A1 (de) * 1987-11-28 1989-06-07 Kabushiki Kaisha Toshiba Kochsystem, zusammengesetzt aus einer Mikrowellen- und einer Wirbelstromerhitzungsvorrichtung
DE4338082A1 (de) * 1993-11-08 1995-05-11 Bosch Siemens Hausgeraete Herd mit Kochfeld
DE19834641A1 (de) * 1998-07-31 2000-02-17 Cherry Gmbh Schaltungsträger mit voneinander trennbaren Steuereinheiten
US20030094448A1 (en) * 2001-10-09 2003-05-22 Sanjay Shukla Electronic power control for cooktop heaters
US20050247693A1 (en) * 2001-10-09 2005-11-10 Electrolux Home Products, Inc. Electronic power control for cooktop heaters
US20050269311A1 (en) * 2004-06-04 2005-12-08 Maytag Corporation Ventilation system for a cooking appliance
US20060025874A1 (en) * 2004-08-02 2006-02-02 E.G.O. North America, Inc. Systems and methods for providing variable output feedback to a user of a household appliance
EP1675435A1 (de) * 2004-12-21 2006-06-28 Brandt Industries Steuerungsverfahren eines Kochfeldes und sein Kochfeld

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318645A1 (de) * 1987-11-28 1989-06-07 Kabushiki Kaisha Toshiba Kochsystem, zusammengesetzt aus einer Mikrowellen- und einer Wirbelstromerhitzungsvorrichtung
DE4338082A1 (de) * 1993-11-08 1995-05-11 Bosch Siemens Hausgeraete Herd mit Kochfeld
DE19834641A1 (de) * 1998-07-31 2000-02-17 Cherry Gmbh Schaltungsträger mit voneinander trennbaren Steuereinheiten
US20030094448A1 (en) * 2001-10-09 2003-05-22 Sanjay Shukla Electronic power control for cooktop heaters
US20050247693A1 (en) * 2001-10-09 2005-11-10 Electrolux Home Products, Inc. Electronic power control for cooktop heaters
US20050269311A1 (en) * 2004-06-04 2005-12-08 Maytag Corporation Ventilation system for a cooking appliance
US20060025874A1 (en) * 2004-08-02 2006-02-02 E.G.O. North America, Inc. Systems and methods for providing variable output feedback to a user of a household appliance
EP1675435A1 (de) * 2004-12-21 2006-06-28 Brandt Industries Steuerungsverfahren eines Kochfeldes und sein Kochfeld

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113633155A (zh) * 2020-04-27 2021-11-12 佛山市顺德区美的电热电器制造有限公司 烹饪组件和控制方法
CN113633155B (zh) * 2020-04-27 2022-09-27 佛山市顺德区美的电热电器制造有限公司 烹饪组件和控制方法

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