EP3244694B1 - Kochsystem mit kochstelle und kochgeschirr - Google Patents

Kochsystem mit kochstelle und kochgeschirr Download PDF

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Publication number
EP3244694B1
EP3244694B1 EP17166840.3A EP17166840A EP3244694B1 EP 3244694 B1 EP3244694 B1 EP 3244694B1 EP 17166840 A EP17166840 A EP 17166840A EP 3244694 B1 EP3244694 B1 EP 3244694B1
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EP
European Patent Office
Prior art keywords
cookware
hotplate
borne noise
designed
cooking system
Prior art date
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Application number
EP17166840.3A
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German (de)
English (en)
French (fr)
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EP3244694A1 (de
Inventor
Daniel Dr. Ebke
Volker Dr. ENNEN
Thomas Metz
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP3244694A1 publication Critical patent/EP3244694A1/de
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    • 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
    • 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
    • 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
    • H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
    • 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
    • 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
    • H05B2213/06—Cook-top or cookware capable of communicating with each other

Definitions

  • the present invention relates to a cooking system according to the preamble of claim 1 and a cookware for such a cooking system according to claim 14.
  • a system and a method for providing a plurality of cooking modes and an ability to automatically heat cooking utensils and other objects by means of the system is known, a data transmission from a cookware to a control unit of the system being effected by means of RFID technology.
  • the dishes include an RFID tag and a temperature sensor.
  • the publication DE 10 2004 008 739 A1 shows a sensor device for a hob, in which the acoustic signal of a mechanical pulse is detected and a control command for the hob is generated depending on the sensor signal.
  • a transponder in particular an RFID tag, is known for a cookware and a cookware with such a transponder, the transponder being resistant to high temperatures and having at least one temperature sensor. Due to its high-temperature resistant design, the transponder can be attached to the cookware at a location that is close to the food to be heated.
  • a disadvantage of the systems and devices described above is that communication between cookware and hob or hob or the like via radio transmission, e.g. using transponder technology.
  • This can be a long-distance effect, i.e. a control and / or regulation of a device by a command that can be carried out outside the range of vision of a device.
  • Communication between the participants and thus a mutual or at least one-sided influence can thus take place, even if they are not in their intended use.
  • the cookware can also be operated by the cookware, even though the cookware is not at all on the hob or on the cooker. Since this can endanger the safety of the user, such remote effects in the household must be prevented in accordance with the standard DIN EN 60335-01 (VDE 0700-1).
  • the systems and devices described above could therefore not conform to standards, which can prevent their use.
  • the cookware is temperature-controlled by a temperature-dependent permanent magnet and is located in a heat-insulated planter.
  • the permanent magnet is moved by a bimetal, which is arranged in an air gap between the bottom of the cookware and the bottom of the pot.
  • the controller construction is pushed so far under the bottom of the cookware that it lies completely inside the planter jacket.
  • the bimetal is not ferromagnetic.
  • the reed contact which is arranged under the hotplate and is affected by the permanent magnet, is located in a tube made of ferromagnetic material that is open at the top to shield the induction field.
  • An object of the present invention is to provide a cooking system of the type described in the introduction, so that secure communication between the cookware and the hotplate can be made possible in a simple manner.
  • a versatile and flexible possibility for secure communication between the cookware and the hotplate is to be created in a simple manner.
  • Secure communication should in particular be standardized, i.e. exclude a long-distance effect safely.
  • At least an alternative way of communication between the cookware and the hotplate is to be provided.
  • the present invention thus relates to a cooking system with at least one first hotplate and at least one cookware.
  • Several hobs can be referred to as a hob.
  • the hotplate can preferably be a hotplate of an induction hob, but also a hotplate of a gas hob or an electric hob.
  • the present invention is characterized in that the first hotplate and the cookware are designed to be able to communicate between them using structure-borne noise signals.
  • Structure-borne noise signals or corresponding communication are understood to mean sound that propagates in a solid. Sound represents the propagation or the audible vibrations in the form of sound waves from the smallest pressure and density fluctuations in an elastic medium, as in this case in a solid body.
  • the present invention is based on the knowledge that by means of structure-borne noise transmission between a hotplate and a cookware, a new, simple and convenient operating options for the user can be created, for example by operating the hotplate via the cookware.
  • This can enable versatile and flexible operation and use of such cooking systems.
  • the user can essentially maintain his usual operation because the user is used to placing the cookware on the hotplate before the cooking process can be operated. If the operation of the hotplate is made possible by operating the cookware which is located on the hotplate, the user can maintain this sequence of operating steps. This can lead to simple and intuitive operation of the cooking system according to the invention for the user.
  • a transmitter and a receiver can be provided only on one side of the communication path, which can make the communication system of the cooking system simpler, cheaper and more compact than with bidirectional communication.
  • the transmitters and receivers can also be made simpler, which can make them cheaper and more compact.
  • a measurement variable such as transfer a temperature from the cookware to the hotplate and e.g. can be used to regulate the temperature of the cooking process.
  • An operation on the cookware e.g. an automatic program for the hotplate is selected or the power level of the hotplate can be set.
  • the selected power level of the hotplate is transmitted from there to the cookware in order to be displayed to the user on a display of the cookware.
  • the switching state to be transmitted can be generated, for example, by a bimetal element. It is thus possible in an astonishingly simple manner to operate a semi-automatic operation, for example a kettle, consisting of a kettle and a hob, without actuating the hob.
  • the set-up sound of the kettle can be detected by the hob and put it in operational readiness and / or start with a pan detection.
  • the actuation of a switch on the kettle can be detected by the hob, whereupon this controls the heating device for heating the kettle.
  • the switching noise of the bimetallic element is detected by the hob and the heating device is switched on.
  • the bimetal element resets the switch and thus also visually indicates the switching state to the user.
  • the placement of the kettle on the hob and / or the actuation of the switch and / or the movement of the bimetallic element can generate structure-borne noise, which is transmitted to the hob and received and evaluated.
  • an electrical voltage it is also possible for an electrical voltage to be generated when the kettle is placed on the hob and / or the switch is actuated and / or the bimetal element is moved. Although this will be relatively low and only occur briefly, it will still send a radio signal to the hob with the energy obtained in this way.
  • the radio signal and / or the structure-borne sound signal can also contain further information than just the changes in state mentioned. For example, this Time of the fill level in the kettle or an identifier, such as for the pot bottom diameter, are transferred to the hob.
  • the generation of such small amounts of energy is also referred to as energy harvesting.
  • the above explanation of the invention is not limited to water boilers.
  • the kettle is used here as an example for cookware.
  • Another synonymous term for cookware is cookware.
  • a complex structure-borne sound signal is understood to mean a signal which comprises several pulses or exhibits a significant change in at least one characteristic property, for example the pulse width and / or the frequency and / or the amplitude, over a period of time.
  • the individual pulses can differ in their characteristic properties.
  • the communication between the hotplate and cookware using structure-borne noise can also be used to locate the cookware on a hotplate from several hotplates of a hob, so that the instructions that are sent by the cookware can be assigned to the correct hotplate for implementation.
  • a cookware can also be identified by the hotplate, for example in order to determine a specific type of cookware and to specify the selection of the automatic programs and their available power levels. By identifying an individual cookware, for example, an interrupted cooking process can be continued again if the identified cookware has been removed from the hotplate in the meantime.
  • regular communication such as a periodic structure-borne noise signal from the cookware to the hotplate can be used, for example, to monitor the presence of cookware on the hotplate during the cooking process.
  • Various mechanisms and elements can be used to operate the functions described above both on the part of the hotplate and on the part of the cookware or to trigger the structure-borne noise signals.
  • this can e.g. Via a push button, a rotary knob, a slider, a thumbwheel, a rotary handle, a toggle, a lever, a jog dial (control element with functions, press, push, slide horizontally and vertically) etc., each of which is simple or can exist more than once.
  • These elements can each be arranged on the handle of the cookware, on the lid of the cookware or on the cookware itself.
  • the operation or triggering of structure-borne noise signals at the hotplate can e.g. via a push button, a rotary knob, a slider, a thumb wheel, a jog dial etc.
  • Communication can preferably be implemented by means of structure-borne noise signals between the hotplate and cookware such that the first hotplate is designed to transmit at least one structure-borne noise signal to the cookware, and that the cookware is designed to receive the structure-borne noise signal from the first hotplate, and / or that the cookware is designed to emit at least one structure-borne noise signal to the first hotplate, and that the first hotplate is designed to receive the structure-borne noise signal from the cookware.
  • the structure-borne sound signal can be transmitted by means of a structure-borne sound source as the structure-borne sound transmitter, and the reception can be carried out by means of a structure-borne sound receiver.
  • the structure-borne sound source and / or the structure-borne sound receiver can preferably be arranged in the bottom of the cookware so that it can be used as close as possible to the cooking area. This can keep the route of the signal transmission short and thereby improve the quality of the signal transmission or reduce the energy required for this.
  • the structure-borne sound source and / or the structure-borne sound receiver can preferably be arranged on the side of the hotplate close to the surface of the hotplate facing the cookware.
  • the structure-borne sound source and / or the structure-borne sound receiver can preferably be arranged centrally in the area facing the communication partner both on the side of the hotplate and on the side of the cookware.
  • the structure-borne sound source and / or the structure-borne sound receiver can generally be used as close as possible to the communication partner, because the cookware is usually operated in the center of the hotplate. This can also lead to the shortest possible communication path.
  • the structure-borne sound source and / or the structure-borne sound receiver can be arranged on the side of the cookware as vertically as possible downwards towards the hotplate. This preferably also applies to the arrangement of the structure-borne sound source and / or the structure-borne sound receiver on the side of the hotplate, i.e. towards the cookware. This can favor directional communication using structure-borne noise in this direction and avoid communication in other directions as far as possible. This enables communication to take place with the lowest possible energy. Furthermore, identification of the cookware on the hotplate compared to other hotplates can be simplified because the signal transmission in the directional direction is significantly stronger than in the other directions and can thus be identified more easily and reliably.
  • several structure-borne sound receivers can also be arranged around the hotplate or around a cooktop with several hotplates, e.g. to recognize cookware by means of triangulation of the structure-borne sound signal communication or to assign the cookware to a hotplate.
  • the first hotplate is designed to make a hotplate setting as a function of a structure-borne noise signal received from the cookware, in particular to start a predetermined cooking program and / or to set a predetermined power level.
  • the hotplate can be operated using structure-borne noise signals from the cookware, so that controls on the hotplate can be partially or completely dispensed with. This can lead to simple, intuitive and comfortable operation of the cooking process for the user.
  • the first hotplate and / or the cookware has or have at least one first structure-borne sound source, which is or are designed to generate a structure-borne sound signal by means of electrical energy.
  • a structure-borne sound signal can be generated at the hotplate and / or on the cookware using a piezoelectric actuator that can be operated with electrical energy.
  • the piezoelectrically generated vibrations can be detected at the hotplate and / or on the cookware by means of a structure-borne noise sensor or a plurality of structure-borne noise sensors.
  • the structure-borne noise sensor is preferably an acceleration sensor.
  • the electrical required for this Energy can be provided at the hotplate via its electrical supply.
  • the electrical energy on the cookware can be provided by a fixed or exchangeable electrical energy store such as a battery, an accumulator or a capacitor, or can be generated directly if required.
  • the first hotplate and / or the cookware further have at least one electrical generator which is or are designed to generate the electrical energy for the first structure-borne sound source.
  • at least one electrical generator which is or are designed to generate the electrical energy for the first structure-borne sound source. This allows separate supply of electrical energy e.g. by electrical storage such as a built-in or replaceable battery or a corresponding accumulator. Rather, the generation of electrical energy to the extent and at the moment can take place directly at the hotplate and / or on the cookware when it is needed.
  • Electrical energy generation can take place by means of so-called energy harvesting, e.g. by generating electrical energy on the cookware by moving the cookware, e.g. by turning the cookware, lifting the cookware and placing the cookware on the hotplate.
  • energy harvesting e.g. by generating electrical energy on the cookware by moving the cookware, e.g. by turning the cookware, lifting the cookware and placing the cookware on the hotplate.
  • the generation of electrical energy can also be done by actuating elements such as e.g. via push button, rotary knob, slide, thumb wheel, rotary handle, toggle, lever, jog dial etc.
  • Such elements can each be arranged on the handle, on the lid or on the pot. In all cases there is no need for an energy store, in particular on the cookware, which, if necessary, would have to be used up and then charged or exchanged externally.
  • Another way of generating electrical energy is to use the kinetic energy of a bimetal.
  • the first hotplate and / or the cookware further comprises at least one electrical energy store, which is or are designed to provide the electrical energy for the first structure-borne sound source.
  • the electrical energy for generating the structure-borne sound signal can be made available by means of electrical energy storage at the hotplate and / or on the cookware, so that it is not necessary to generate electrical energy at the hotplate and / or on the cookware. This can be easier and cheaper.
  • the electrical energy storage can be rechargeable and / or interchangeable. For example, a battery or an accumulator can be used as the electrical energy store.
  • an electrical energy store in combination with an electrical generator in order to temporarily store energy between the generation by the electrical generator and the use by the structure-borne sound source.
  • this electrical energy store can be fed and charged at any time by an electrical generator in order to release the stored electrical energy again at any later time.
  • the electrical energy store does not have to be accessible either through electrical connections or for external exchange, which protects the electrical energy store and the rest of the electrical system from e.g. Moisture can simplify. Visible electrical connections or an exchange option such as a flap of a battery compartment can be avoided, because this could impair the visual impression of the hotplate or the cookware for the user.
  • such an electrical energy store can be exchangeable and / or additionally rechargeable from the outside. This can be easier and cheaper because an electrical generator can be dispensed with. Furthermore, this can be more reliable and more familiar to the user, because if necessary, a fully charged electrical energy store can be used or can be brought about by charging from the outside.
  • the electrical energy store can also be a short-term energy store such as be a capacitor which e.g. by moving the cookware such as by rotating the cookware, lifting the cookware and placing the cookware on the hob for a timely use with electrical energy.
  • a short-term energy store such as be a capacitor which e.g. by moving the cookware such as by rotating the cookware, lifting the cookware and placing the cookware on the hob for a timely use with electrical energy.
  • At least several and preferably all structure-borne noise sources can be supplied by a common electrical energy store and / or by a common electrical generator.
  • At least one structure-borne sound source can also be supplied by an electrical energy store and at a time offset or at the same time another structure-borne sound source by an electrical generator. This can make electrical power supply simpler and therefore cheaper. This applies mutatis mutandis to other electrical consumers of the hotplate and / or cookware such as display elements, sensors, control units, control units, etc.
  • the first hotplate and / or the cookware has at least one first structure-borne sound source, which is or are designed to generate the structure-borne sound signal without electrical energy.
  • This enables communication by means of structure-borne noise signals without any electrical energy in the cooking system.
  • This can simplify the generation of the structure-borne sound signal and make the structure-borne sound source simpler and cheaper as a transmitter, because electrical lines, electrical insulation, electrical generators and / or electrical energy stores can be dispensed with. This can be very advantageous, especially on cookware.
  • a structure-borne sound source can be a bimetal element, for example.
  • structure-borne noise generation can e.g. by means of mechanical deformation as with a click frog button or by means of magnetic attraction or repulsion.
  • a structure-borne sound signal can be received by means of a vibration sensor.
  • the generation of such a structure-borne sound signal can e.g. by pressing a button, by sliding a slide, by turning a handle, etc.
  • the structure-borne noise signal can be generated directly without going through electrical energy. It is particularly advantageous when using this type of structure-borne noise generation on the cookware that purely passive elements can be used there, which can be simple and robust, so that they can have a long service life.
  • the first hotplate and / or the cookware has at least one first control element which is designed to trigger the generation of a structure-borne sound signal when actuated.
  • the structure-borne sound source works with electrical energy, electrical energy can be conducted from an electrical energy store to the structure-borne sound source by the first operating element or generated by means of a generator and used directly by the structure-borne sound source. If the structure-borne sound source works without electrical energy, the structure-borne sound signal can be generated or triggered directly by the first operating element.
  • the structure-borne sound source can be designed for a specific structure-borne sound signal, so that the specific first structure-borne sound signal can be triggered by actuating the first operating element of the electrical or non-electrical structure-borne sound source.
  • This can simplify the design of the first control element, the first structure-borne sound source and their connection and thus make them cheaper and possibly more compact.
  • the control element can be, for example, a push button, a rotary knob, a slide, a thumb wheel, a rotary handle, a toggle, a lever, a jog dial, etc.
  • the first operating element is designed to trigger the generation of a group of identical structure-borne noise signals, which form a resulting structure-borne noise signal, by multiple actuation within a predetermined time period.
  • a signal group of identical structure-borne noise signals can be generated, e.g. by multiple actuation of the same control element in quick succession within a predefined period, so that different resulting structure-borne noise signals can be generated.
  • a structure-borne noise signal is also understood to mean a sequence of individual structure-borne noise signals, which together form a resulting structure-borne noise signal. In this way e.g. by operating the cookware between different automatic programs of the hotplate and / or the power level of the hotplate can be set.
  • the first operating element is designed to trigger the generation of different structure-borne noise signals.
  • the distinction can e.g. according to the frequency and / or according to the amplitude into different individual structure-borne sound signals.
  • Different structure-borne noise signals can also be made possible by signal sequences, i.e. several individual signals that are the same or different in frequency and / or amplitude can contain a signal word such as form when Morse.
  • These can e.g. are generated by different positions of a control element, each with a different structure-borne sound signal, e.g. by moving the control element to the next position, e.g. with a rotary knob, a slider, a thumbwheel, a rotary handle etc. This enables extensive communication between the hotplate and cookware using different structure-borne noise signals.
  • Different structure-borne noise signals can also be used to differentiate between the cookware and the hotplate.
  • different types of cookware such as kettles, frying pans etc. can indicate their type by means of a different structure-borne sound signal according to frequency and / or amplitude.
  • a preferred signal for detecting the cooking state is the noise that a bimetallic element generates when it is reset.
  • the bimetal element When the water reaches the boiling state, the bimetal element is heated accordingly and changes its shape. This change in shape is used in a conventional kettle to prevent the supply of electrical energy to the radiator installed in the kettle.
  • the bimetal element When the shape changes, the bimetal element also generates a clearly perceptible noise. Due to its amplitude and noise behavior, this noise is much easier to detect than a boiling noise. In particular, however, the change in shape is accompanied by a brief vibration in the kettle. Vibration and noise can be detected very well via structure-borne noise, possibly even by means of an external sensor, that is to say a sensor installed in another device, for example a microphone.
  • bimetal is not to be understood as limited to the use of metal as a construction material. Basically, the bimetal effect can also be achieved with other, non-metallic materials. The bimetal effect only requires a laminated body composed of two elastic layer materials with different thermal expansion.
  • a bimetal element can therefore consist, for example, of a ceramic and / or a plastic and / or a metal alloy.
  • different hotplates of a hob can be identified by a different structure-borne sound signal according to frequency and / or amplitude.
  • a program selection and a selection of the power level of a program can be made possible by different structure-borne noise signals.
  • the different structure-borne noise signals can be generated with the same control element, which can save space at the hotplate or on the cookware.
  • the first hotplate and / or the cookware has at least one second control element, the first control element and the second control element being designed to trigger the generation of a different structure-borne sound signal when actuated in each case.
  • the functions, as described above can be triggered by means of at least two different operating elements, each of which has a different structure-borne sound signal can generate.
  • the distinction can be made by frequency and / or amplitude and / or signal sequence.
  • a type of structure-borne sound signal can be used to select an automatic program of the hotplate via a first control element and another type of structure-borne sound signal can be used to select the power level of the selected automatic program via a second control element.
  • the cooking system further has a second hotplate, which is designed to carry out communication with the cookware by means of structure-borne noise, the first hotplate and / or the second hotplate being designed or being the same structure-borne noise signal of the cookware to receive and to assign the cookware to one of the two hotplates from a time difference and / or from an amplitude difference of the respectively received structure-borne sound signal.
  • This function can also be performed by a hob to which both hotplates can be assigned.
  • the cookware can be used flexibly on several hotplates, for example within a hob, since the hotplate used in each case is automatically recognized or communication can be established with it. This can also make it possible for the cookware to move from the first hotplate to the second hotplate during a cooking process and after the change in the hotplates has been detected or the cooktop, the hotplate settings of the first hotplate can be set at the second hotplate, so that the cooking process can be continued at the second hotplate without having to make any new settings.
  • the cookware has at least one second structure-borne sound source, which is designed to generate a structure-borne sound signal
  • the first hotplate being designed to receive the structure-borne sound signals of both structure-borne sound signal sources of the cookware and from a transit time difference and / or from a To detect the difference in amplitude of the structure-borne sound signal received in each case, a position and / or orientation of the cookware on the first hotplate.
  • a position of the cookware on the hotplate e.g. can be recognized from the center of the hob in the horizontal plane.
  • an orientation of the cookware on the hotplate can e.g. can be recognized by rotating around the vertical axis of the cookware. This can be used to make adjustments to the hotplate by moving and / or rotating the cookware on the hotplate.
  • Automatic programs are selected and / or their power level is set.
  • the cooking system has a hotplate with a coil device for transmitting an alternating magnetic field.
  • the cookware is designed to emit an individual, characteristic structure-borne sound through such a changing magnetic field.
  • Such a humming and buzzing is known in induction dishes. Since these noises depend on individual manufacturing tolerances, the noise of each piece of tableware is individual and characteristic.
  • the hotplate is set up to receive this individual, characteristic structure-borne noise and to detect a change in this individual structure-borne noise.
  • the temperature of the cookware for example, to be determined without further devices. Because the temperature has an influence on the speed of sound and / or the frequency and / or the amplitude of the sound. If the individual, characteristic structure-borne noise of the cookware changes with the temperature and this change in structure-borne noise is recorded and evaluated, a conclusion can be drawn about the temperature of the cookware.
  • the determination of the temperature is also possible without an alternating magnetic field or also in the case of dishes which, excited by an alternating magnetic field, emit no or only extremely weak noises.
  • the present invention also relates to a cooktop with at least one cooktop for use in a cooking system as described above, the cooktop and / or the cooktop being designed to carry out communication with a cookware using a structure-borne sound signal.
  • the present invention also relates to cookware for use in a cooking system as described above, the cookware being designed to carry out communication with a hotplate and / or a hob by means of a structure-borne noise signal.
  • cookware is also understood to mean mobile devices which have their own energy converter and are intended for treating foods. This can be, for example, a kettle, a toaster, an egg cooker, a waffle iron or a blender. These devices receive electrical energy by inductive transmission from the hotplate and convert it into thermal energy and / or kinetic energy. Due to the possibility of transmitting a desired power level, such a device can use structure-borne noise to call up the energy required for operation from the hotplate.
  • Devices of this type offer the user a great advantage as an accessory with the aforementioned communication with the hob.
  • the devices are supplied wirelessly and energy is only transferred when required.
  • the usual operation on the device - for example pressing a button on the toaster - and the provision of the right energy by the cooktop would be much easier than before.
  • Fig. 1 shows a perspective schematic representation of a cooking system 1 according to the invention in a first embodiment.
  • Fig. 2 shows a side schematic sectional view of the Fig. 1 .
  • the cooking system 1 has a hob 2.
  • the hob 2 has a first hotplate 20 and a second hotplate 22. There are other hotplates, but they will not be considered or described in detail.
  • Both the first hotplate 20 and the second hotplate 22 each have a structure-borne sound sensor 21, 23, which is arranged in the middle below the hotplate 20, 22 and is oriented upwards.
  • the structure-borne noise sensors 21, 23 are acceleration sensors 21, 23.
  • a cookware 3 in the form of a saucepan 3 is arranged on the first hotplate 20.
  • the saucepan 3 has a saucepan body 30 in which a food to be cooked etc. can be accommodated.
  • the saucepan body 30 has a handle 31 on the side with which the saucepan 3 can be gripped and lifted by a user.
  • the saucepan 3 has a first structure-borne sound source 32 in the center of its base, which is oriented downward towards the first cooking zone 20. This orientation can favor a directional communication by means of structure-borne noise between the cooking pot 3 and the first hotplate 20.
  • the first structure-borne sound source 32 is a piezoelectric actuator 32, which supplies electrical energy from an electrical energy store 35 in the form of a battery 35 can be.
  • On the handle 31 there is also a first control element 36 in the form of a push button 36 which can be pressed by the user.
  • the first structure-borne sound source 32 is supplied with electrical energy by the battery 35, so that this causes a predetermined structure-borne sound signal to be emitted.
  • This structure-borne noise signal can be received by the structure-borne noise sensor 21 of the first hotplate 20 and processed by the structure-borne noise sensor 21 itself, by the first hotplate 20 or by the hob 2 or its control and / or regulation. This can e.g. identification of the saucepan 3 e.g. as a "kettle" on the first hotplate 20, which means that a corresponding automatic program such as "Water boiling” can be started. Then e.g. the user selects the power level of the selected automatic program by repeatedly pressing the push button 36.
  • Fig. 3 shows a side schematic sectional view of a cooking system 1 according to the invention in a second embodiment.
  • the saucepan 3 has the Fig. 2 Instead of an electrical energy store 35, an electrical generator 34, which can be actuated by the first operating element 36.
  • an electrical generator 34 which can be actuated by the first operating element 36.
  • the electrical energy which the first structure-borne sound source 32 needs to generate a structure-borne sound signal can be generated directly and without storage as soon as the first operating element 36 is actuated.
  • Fig. 4 shows a side schematic sectional view of a cooking system 1 according to the invention in a third embodiment.
  • electrical generation of structure-borne noise signals is dispensed with, so that there is also no first structure-borne noise source 32 in the form of a piezoelectric actuator 32. Rather is A click frog button 32 is arranged on the first control element 36, which can emit a structure-borne noise signal by mechanical deformation as soon as the click frog button 32 is actuated by the first control element 36.
  • Fig. 5 shows a perspective schematic representation of a cookware 3 of a cooking system 1 according to the invention in a fourth embodiment.
  • a first control element 36 and a second control element 37 are arranged on the handle 31 of the saucepan 3.
  • Both operating elements 36, 37 are push buttons 36, 37, which can actuate the same structure-borne sound source 32 or different structure-borne sound sources (not shown).
  • the structure-borne noise sources 32 can be electrical and / or non-electrical.
  • a first type of structure-borne noise signal is triggered by the first control element 36 and a second type of structure-borne noise signal is triggered by the second control element 37.
  • the structure-borne noise signals of the two operating elements 36, 37 can differ in terms of their frequency, their amplitude and / or their signal sequence. This distinction can be recognized by the first hotplate 20.
  • a type of structure-borne noise signal can be brought about by the first operating element 36, which signal e.g. the selection of an automatic program of the first hotplate 20 is used.
  • the first operating element 36 which signal e.g. the selection of an automatic program of the first hotplate 20 is used.
  • the first control element 36 can be switched through by the user through the available automatic programs until the desired automatic program is selected or the selection starts again from the beginning.
  • a different type of structure-borne sound signal can be brought about by the second control element 37, e.g. can select the power level of the selected automatic program of the first hotplate 20.
  • the power level e.g. be increased until the desired power level is reached or the selection of the power levels starts again.
  • Fig. 6 shows a perspective schematic representation of a cookware 3 of a cooking system 1 according to the invention in a fifth embodiment.
  • the first control element 36 is arranged in the form of a rotary knob 36 on the saucepan body 30, so that by rotating the rotary knob 36 different structure-borne noise signals can be triggered, each of which can communicate the selected automatic program or its power level to the first hotplate 20.
  • the selected setting can be read by the user by means of a marking 38 on the saucepan body 30.
  • Fig. 7 shows a perspective schematic representation of a cookware 3 of a cooking system 1 according to the invention in a sixth embodiment.
  • the rotatable end of the handle 31 represents the first operating element 36 in the form of a rotary handle 36.
  • the rotary handle 36 can be rotated about its longitudinal axis in relation to a handle holder 39.
  • the rotary handle 36 has a marking 38 which shows the user the selected setting.
  • Fig. 8 shows a perspective schematic representation of a cookware 3 of a cooking system 1 according to the invention in a seventh embodiment.
  • a first structure-borne sound source 32 and a second structure-borne sound source 33 on the cooking pot 3 which can be recognized in their position by the first hotplate 20 in such a way that the first hotplate 20 recognizes an orientation of the cooking pot 3 in the form of a rotation about its vertical axis can.
  • the first hotplate 20 can be operated by rotating the saucepan 3.
  • the selected setting can be recognized by the user through markings 38 on the saucepan body 30 and a marking 24 on the first hotplate 20.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
  • Induction Heating Cooking Devices (AREA)
EP17166840.3A 2016-05-11 2017-04-18 Kochsystem mit kochstelle und kochgeschirr Active EP3244694B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016108680.0A DE102016108680A1 (de) 2016-05-11 2016-05-11 Kochsystem mit Kochstelle und Kochgeschirr

Publications (2)

Publication Number Publication Date
EP3244694A1 EP3244694A1 (de) 2017-11-15
EP3244694B1 true EP3244694B1 (de) 2020-07-29

Family

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Application Number Title Priority Date Filing Date
EP17166840.3A Active EP3244694B1 (de) 2016-05-11 2017-04-18 Kochsystem mit kochstelle und kochgeschirr

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EP (1) EP3244694B1 (es)
DE (1) DE102016108680A1 (es)
ES (1) ES2813976T3 (es)

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EP4390231A1 (de) 2022-12-21 2024-06-26 Miele & Cie. KG Verfahren zum betrieb eines bediensystems sowie betriebsvorrichtung und bewegliche bedienvorrichtung

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DE102017112945B3 (de) * 2017-06-13 2018-10-25 Miele & Cie. Kg Verfahren zum Betrieb eines induktiven Kochsystems, zugehöriges induktives Kochsystem sowie Kochfeld und Kochgeschirr für ein derartiges induktives Kochsystem
EP3528595B1 (en) * 2018-02-14 2020-08-19 Vestel Elektronik Sanayi ve Ticaret A.S. A cooker
DE102018119969A1 (de) * 2018-08-16 2020-02-20 Miele & Cie. Kg Verfahren zur automatischen Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle eines induktiven Kochfelds und System zur Durchführung des Verfahrens
DE102019123703A1 (de) * 2019-09-04 2021-03-04 Miele & Cie. Kg Kochfeld mit mindestens einem Temperatursensor
KR20210063897A (ko) * 2019-11-25 2021-06-02 엘지전자 주식회사 사용자의 개입 없이 특정 기능을 제공하는 전기 레인지
DE102020201005A1 (de) * 2020-01-28 2021-07-29 E.G.O. Elektro-Gerätebau GmbH System mit einem Kochfeld und einem Kochgeschirr und Verfahren zum Betrieb des Systems
DE102020114129A1 (de) 2020-05-27 2021-12-02 Miele & Cie. Kg Kochsystem und Verfahren zum Betreiben
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EP4390231A1 (de) 2022-12-21 2024-06-26 Miele & Cie. KG Verfahren zum betrieb eines bediensystems sowie betriebsvorrichtung und bewegliche bedienvorrichtung

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DE102016108680A1 (de) 2017-11-16
ES2813976T3 (es) 2021-03-25

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