EP2258986A2 - Plaque de cuisson - Google Patents

Plaque de cuisson Download PDF

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Publication number
EP2258986A2
EP2258986A2 EP10004773A EP10004773A EP2258986A2 EP 2258986 A2 EP2258986 A2 EP 2258986A2 EP 10004773 A EP10004773 A EP 10004773A EP 10004773 A EP10004773 A EP 10004773A EP 2258986 A2 EP2258986 A2 EP 2258986A2
Authority
EP
European Patent Office
Prior art keywords
cooking
cookware
hob
detected
point
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Withdrawn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
EP10004773A
Other languages
German (de)
English (en)
Other versions
EP2258986A3 (fr
Inventor
Karlheinz Hammelsbacher
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
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 Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP2258986A2 publication Critical patent/EP2258986A2/fr
Publication of EP2258986A3 publication Critical patent/EP2258986A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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 hob with a plurality of cooking zones according to the preamble of claim 1.
  • control variables on / off, cooking level, cooking time, cooking zone size, etc.
  • the control device of the hob controls the individual cooking zones according to the respective, via the operating device for this cooking zone entered control variables.
  • pan detection mechanisms for detecting the presence and / or size of a cookware on a cooking zone are known in the art, based, for example, on an inductive, capacitive, optical, mechanical or transceiver measurement principle.
  • this object is achieved by a hob with the features of claim 1.
  • Advantageous embodiments and further developments of the invention are the subject of the dependent claims 2 to 9.
  • the hob has a plurality of cooking zones, each of which is associated with a detection device for detecting the presence of a cookware on the respective hob; an operating device for inputting control variables for the cooking zones; and a control device for driving the hotplates in accordance with the control quantities input via the operating device.
  • the detection devices and / or the control device of the hob are designed so that they can detect a displacement of a cookware from one cooking position to another cooking position.
  • the control device is designed so that it controls upon detection of a moving of a cookware from one cooking position to another hotplate, the other hotplate in accordance with the control variables with which the cooking hob has been controlled before moving the cookware.
  • the hob of the invention is characterized in particular by two features that are not yet known in conventional hobs.
  • Second, the control device is designed so that it controls on detecting a displacement of a cookware from one cooking position to another hotplate, the other hotplate in accordance with the control variables with which one cooker has been controlled before moving the cookware.
  • the cookware continues to be automatically operated with the same control variables on the hob.
  • a new input of the control variable via the operating device by the user is eliminated.
  • the operation of the hob is thus much more comfortable for the user in the case of moving a cookware from one cooking area to another cooking place than in conventional hobs.
  • control device can also be designed so that it upon detection of a displacement of a cookware from one hotplate to another hotplate that turns off one hotplate.
  • the reliability of the hob can be increased. The user does not have to manually switch off the one hotplate on which no cookware is left after moving the cookware. Instead, this is done automatically by the control device, which can be safely prevented that a free hotplate is heated further.
  • the detection devices can each be designed so that they can detect a proportional presence of a cookware on the respective hob.
  • the detection means and / or the control device of the cooktop may preferably be arranged to consist of a reduction of the detected proportion of the presence of a cookware on a cooking surface and a simultaneous increase in the detected proportion of the presence of a cookware on another Cooker can see a moving the cookware from one cooking area to the other cooking area.
  • the detection means may alternatively or additionally also be designed so that they detect a relative position of a cookware on the respective hob.
  • the detection devices of the hob and / or the control device may preferably be formed so that from a change in the detected relative position of a cookware on a hotplate and a simultaneous change in the detected relative position of a cookware on another hotplate, a displacement of the cookware can be detected from one cooking point to the other hotplate.
  • the detection devices may each be based on an inductive measuring principle, a capacitive measuring principle, an optical measuring principle, a mechanical measuring principle, a transmitter-receiver measuring principle or a combination of at least two of the aforementioned measuring principles.
  • a display device for displaying a detected by the detection means or the control device moving a cookware may be provided from one cooking position to another cooking position.
  • This display device can be integrated, for example, in the operating device.
  • the above object is achieved by a method for controlling the operation of a multi-hob cooker having the features of claim 10.
  • Advantageous embodiments and further developments of the method according to the invention are the subject of the dependent claims 11 to 15.
  • the method for controlling the operation of a multi-hob cooktop includes the steps of detecting a presence of a cookware on a hotplate and driving the hotplates in accordance with control values for the respective hotplate. According to the invention also becomes Moving a cookware from one hotplate to another hotplate on the hob. Then, upon detection of a moving of a cookware from one cooking position to another cooking point, the other cooking point is controlled in accordance with the control variables with which the cooking hob has been controlled before moving the cookware.
  • the one cooking point upon detection of a displacement of a cookware from one cooking position to another cooking point in addition, the one cooking point can be turned off in order to increase the reliability of the hob.
  • moving a cookware from one cooking location to another cooking area of the hob can be detected by reducing a detected portion of the presence of a cookware on the one cooking area and simultaneously increasing a detected proportion of the presence of a cookware on the other cooking location ,
  • a movement of a cookware from one cooking position to another cooking point of the hob can also be detected on the basis of a change in a detected relative position of a cookware on one cooking point and a simultaneous change of a detected relative position of a cookware on the other hob.
  • a presence of a cookware on a cooking surface of the hob according to an inductive measuring principle, a capacitive measuring principle, an optical measuring principle, a mechanical measuring principle, a transmitter-receiver measuring principle or a combination of at least two of the aforementioned measuring principles.
  • a detected moving of a cookware from one cooking position to another hotplate of the hob can be displayed via a display device.
  • Cooking hob 10 shown by way of example has a total of four cooking zones 12a, 12b, 12c and 12d.
  • the present invention is also applicable to cooktops with only two or three hotplates or more than four hotplates.
  • the hotplates are 12a..d of the hob 10 of Fig. 1 each of the same shape and size, but the present invention is also applicable to hobs 10 with different sized and / or differently shaped cooking zones.
  • the hob 10 also have at least one cooking point that can be switched between two sizes and / or shapes.
  • the cooking areas 12a..d of the hob 10 can in principle be provided with any desired heating devices. Particularly conceivable here are induction heaters and resistance heaters. In principle, however, the present invention can also be used for gas stoves.
  • the hob 10 is preferably a glass ceramic hob.
  • the present invention should not be limited only to this embodiment.
  • Each hotplate 12a..d of the hob 10 is associated with a corresponding detection device 14a..d, as in Fig. 1 indicated.
  • the detection devices 14a..d can each be on an inductive measuring principle based, which is particularly preferred in the case of hotplates 12a..d with induction heating.
  • the detection devices 14a..d can be based on a capacitive measuring principle, an optical measuring principle, a mechanical measuring principle (eg weight sensors, pressure sensors, pushbuttons, etc.) or a transmitter-receiver measuring principle (eg transmitter on the cookware and receiver in the hob).
  • a capacitive measuring principle e.g weight sensors, pressure sensors, pushbuttons, etc.
  • a mechanical measuring principle eg weight sensors, pressure sensors, pushbuttons, etc.
  • a transmitter-receiver measuring principle eg transmitter on the cookware and receiver in the hob.
  • the detection devices 14a... D are each designed such that they can detect a proportional presence of a cookware on the respective cooking point 12a... D.
  • the detection devices 14a..d it is detected whether the respective hotplate 12a..d is completely or only partially covered with a cookware.
  • changes in the detected proportions of the presence of a cookware can be detected on the hob.
  • the detection devices 14a... D are each designed such that they can detect a relative positioning of a cookware on the respective cooking point 12a... D.
  • it is detected by means of the detection devices 14a..d, whether a cookware is positioned centrally on the cooking surface 12a..d or is displaced to one side. is covered.
  • changes in the detected relative positions of a cookware on the cooking surface 12a..d can then be detected on this basis.
  • the hob 10 further comprises an operating device 16.
  • This operating device 16 is provided for example on one side of the cooking zones 12a..d.
  • the operating device 16 may also be spaced from the region of the cooking zones 12a..d.
  • the operating device 16 is preferably designed with touch-sensitive operating elements, ie as a so-called touch control.
  • touch control ie as a so-called touch control.
  • operating devices 16 with push buttons or other mechanical switching elements can alternatively be used.
  • the operating device 16 contains a display element 18a..d for displaying the currently selected cooking level and / or possibly the current cooking time for the respective cooking area 12a..d.
  • a corresponding input device 20a..d for inputting cooking level and / or cooking time for the respective hotplate 12a..d is provided for each of the cooking zones 12a..d.
  • any desired operating devices 16 can be used for the hob 10 according to the invention.
  • control variables include, for example, on / off, the cooking level, the cooking time, possibly the cooking size and the like.
  • a display element 22 is preferably provided in the operating device 16, which indicates to the user a detected by the hob 10 moving a cookware from one cooking position to another cooking position, as explained below.
  • the hob 10 also has a control device 24.
  • This control device 24 controls the cooking zones 12a..d of the hob, more precisely their heating devices, in accordance with the control variables entered by the user via the operating device 16.
  • a plurality of cooking zones 12a..d of the hob 10 can be controlled simultaneously by the control device 24.
  • the hob 10 described above offers the user in particular compared to conventional hobs increased ease of use, if the user wants to move a cookware on the hob from one hob to another hotplate and this cookware then on the other hob with the same settings, ie would like to continue operating the same control variables.
  • the user does not have to perform any manual switching operations in this case, the acquisition of the control variables from one to the other hob is carried out more automatically by the hob 10 itself.
  • Fig. 2A First, four temporally successive situations when moving a cookware are illustrated. At time a, the cookware 26 is initially on the first hob 12a (bottom left in Fig. 2A or front left of the user seen). Then, this cookware 26 gradually from this first cooking point 12a to the rear (upward in Fig. 2A ) moved over the hob 10 (times b and c). Finally, the cookware 26 is on the second stove 12b rear left (top left in Fig. 2A ) and should continue to be operated there.
  • Fig. 2B shows the waveforms of the detection means 14a and 14b of the first and second cooking zone 12a, 12b.
  • the first detection device 14a detects the first cooking point 14a that a cookware 26 is present. More specifically, this detection device 14a detects that a cookware 26 is located centrally on the first cooking point 12a or that a cookware 26 is 100% at the first cooking point 12a.
  • the measuring signal u a of the first detection device 12a becomes correspondingly smaller (times b and c) until finally no cookware 26 is detected and sinks to zero ( Time d).
  • the measuring signal u b of the second detection means of the second cooking zone 14b 12b larger (timings b and c), which means that by and detected by the presence of a cooking utensil 26, there until the measuring signal u b finally reaches its maximum value (time d).
  • these detection devices or the control device 24 of the hob 10 can recognize that the cookware 26 has been moved from the first to the second hob of the hob 10.
  • the control device 24 then switches off the first hotplate 12a, from which the cookware 26 has been removed, for safety reasons.
  • the control device 24 now controls the second cooking point 12b, on which the cookware 26 now stands, with the control variables, with which previously the first cooking point 12a has been activated.
  • the second hotplate 12b is turned on and operated with the same cooking stage and the same cooking time, as before the first hotplate 12a.
  • the measurement signal u b of the second detection means 14b is not exactly parallel to the reduction of the measurement signal u a of the first detection means 14a larger. This is due to the distance between the first and second cooking zones 12a, 12b and the size of the cookware.
  • the precise course of the measurement signals u a , u b of the two detection devices 14a, 14b involved, and their mutual correlation, of course depend on the speed, uniformity, directionality, and the like of the user moving the cookware 26, as well as the size and shape of the cookware 26.
  • the detection devices 14a, 14b and / or the control device 24 will be able to detect during the displacement of the cookware 26 a time or a time span in which the measurement signal u a of the first detection device 14a becomes smaller and at the same time the measurement signal u b of the second detection device 14b is larger in order to conclude from the shift operation can.
  • the measurement signals ua..d of the detection devices can, for example, be a proportional presence of the cookware 26 on the respective cooking point 12a..d and / or a relative position of the cookware 26 on the respective hob 12a..d correspond.
  • the first detection device 14a of the first cooking point 14a can also recognize that the cookware 26 is being pushed backwards by it; if then the second detection device 14b of the second cooking point 12b detects that a Cookware 26 is pushed onto it from the front, so it is determined that it is a shifting operation of the cookware 26 from the first to the second cooking position 12 a, 12 b.
  • a movement of a cookware 26 detected by the hob 10 is preferably provided to the user by means of a display device 22 (cf. Fig. 1 ) is displayed.
  • This display device 22 is preferably integrated in the operating device 16, but may also be provided separately from this or in another way.
  • a detected shifting operation is optically displayed, for example, by means of corresponding arrows.
  • flashing or permanently illuminated points can light up at corresponding relative positions within the display device 22.
  • Another possibility is to use for the display device 22 the existing anyway in the operating device 16 display elements 18a..d and display the shift by corresponding color or flashing displays or the like.
  • the inventive method increases the ease of use for the user, if this with a cookware on another hotplate of the hob wants to cook with the same control variables. Will the user, however, continue to work with the cookware on another hotplate with other control variables, so there are two options for him.
  • the user has the option of moving the cookware 26 as described above to another hotplate 12a..d, with the result that this other hotplate 12a..d is then controlled with the same control variables as the starting cooker. Now the user can modify these control variables in the usual way via the operating device 16.
  • the user may also temporarily lift the cookware 26 off of the hob 10 so that the sensing signals from any two detection devices 14a..d have no correlation with each other from which the hob 10 could close to move the cookware 26. Then the cookware 26 can be parked on the other hob 12a..d and entered the new control variables in the usual way via the control unit 16.
  • the hob 10 additionally with a switching device with which the user can optionally switch on or off the above-described mode for detecting a shifting operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)
EP10004773A 2009-05-27 2010-05-06 Plaque de cuisson Withdrawn EP2258986A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910022898 DE102009022898A1 (de) 2009-05-27 2009-05-27 Kochfeld

Publications (2)

Publication Number Publication Date
EP2258986A2 true EP2258986A2 (fr) 2010-12-08
EP2258986A3 EP2258986A3 (fr) 2013-01-02

Family

ID=42988541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004773A Withdrawn EP2258986A3 (fr) 2009-05-27 2010-05-06 Plaque de cuisson

Country Status (2)

Country Link
EP (1) EP2258986A3 (fr)
DE (1) DE102009022898A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2822355A1 (fr) * 2013-07-03 2015-01-07 ELECTROLUX PROFESSIONAL S.p.A. Table de cuisson et son procédé de fonctionnement
CN114263942A (zh) * 2021-12-17 2022-04-01 杭州老板电器股份有限公司 电磁灶控制方法、装置及电子设备
EP4297531A1 (fr) * 2022-06-20 2023-12-27 Electrolux Appliances Aktiebolag Appareil de cuisson et procédé de fonctionnement d'un appareil de cuisson

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3448118B2 (fr) 2013-04-30 2023-04-05 Electrolux Appliances Aktiebolag Table de cuisson et procédés pour faire fonctionner une telle plaque de cuisson

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863039B1 (fr) * 2003-11-27 2006-02-17 Brandt Ind Procede de chauffage d'un recipient pose sur une table de cuisson a moyens de chauffage associe a des inducteurs
FR2872258B1 (fr) * 2004-06-25 2006-11-10 Brandt Ind Sas Table de cuisson a plusieurs zones de cuisson
ES2329326B1 (es) * 2007-10-17 2010-08-30 Bsh Electrodomesticos España, S.A. Dispositivo de coccion y procedimiento con un dispositivo de coccion.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2822355A1 (fr) * 2013-07-03 2015-01-07 ELECTROLUX PROFESSIONAL S.p.A. Table de cuisson et son procédé de fonctionnement
CN114263942A (zh) * 2021-12-17 2022-04-01 杭州老板电器股份有限公司 电磁灶控制方法、装置及电子设备
EP4297531A1 (fr) * 2022-06-20 2023-12-27 Electrolux Appliances Aktiebolag Appareil de cuisson et procédé de fonctionnement d'un appareil de cuisson

Also Published As

Publication number Publication date
EP2258986A3 (fr) 2013-01-02
DE102009022898A1 (de) 2010-12-16

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