EP2983449B1 - Procede d'acceleration d'un processus de cuisson, dispositif de commande et appareil de cuisson correspondant - Google Patents
Procede d'acceleration d'un processus de cuisson, dispositif de commande et appareil de cuisson correspondant Download PDFInfo
- Publication number
- EP2983449B1 EP2983449B1 EP15179657.0A EP15179657A EP2983449B1 EP 2983449 B1 EP2983449 B1 EP 2983449B1 EP 15179657 A EP15179657 A EP 15179657A EP 2983449 B1 EP2983449 B1 EP 2983449B1
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- heating
- temperature
- heating elements
- heating element
- control device
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Images
Classifications
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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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
- H05B1/0266—Cooktops
-
- 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
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
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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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/037—Heaters with zones of different power density
-
- 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
- H05B2213/04—Heating plates with overheat protection 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
- H05B2213/07—Heating plates with temperature control means
Definitions
- the present invention relates to a method for operating a heater having at least two mutually adjacent heating elements for a cooking appliance according to the preamble of claim 1.
- the invention further relates to a control device for operating a at least two juxtaposed heating elements having radiator for a cooking appliance, said Control device for adjusting an average thermal power of the radiator has a common for the heating elements, adjustable clock, to which the heating elements are connected.
- the invention also relates to a cooking appliance with a radiator having at least two heating elements arranged adjacent to one another, a temperature limiter unit associated with the radiator and a cover plate, wherein the radiator is arranged on the cover plate through the cover plate for carrying out a thermal power generated by the radiator during normal operation and the temperature limiting unit is arranged between the cover plate and the heating elements of the radiator.
- a generic method, a generic control unit and a generic cooking appliance are for example from the DE 3206024 A1 known.
- This document addresses the question of speeding up a warm-up procedure.
- the DE 3206024 A1 that in a radiator, a legislative effort, complementary heating coil is arranged, which is switched on during cooking, in order to increase the heating power of the radiator during the Ankochvorgangs.
- the increased heating power should therefore be achieved in that a radiant heater has two heating coils, wherein a heating coil largely, with the exception of the outer peripheral region, covers the cooking zone area and to each other in the form of semicircular heating areas is formed concentrically arranged heating coils.
- This heating coil is surrounded by the annular, additional single-strand heating coil, which is located directly on the periphery of the hob.
- the two separate heating coils are each designed as separate heat conductors, their respective two ends being formed with electrical connection points.
- the conceptual design to improve the cooking time or to improve the Ankochvorgangs consuming, in particular, specially trained heating conductors for the different heating windings are needed.
- a radiator body in the intended operation facing bottom of a cookware has a crowning, that is, a curvature that is concave in relation to the cookware formed according to innnen, that is, a curvature facing away from the radiator having.
- This crowning causes the cookware placed on a heating zone provided by the radiator to arrange a large part of the surface of the bottom of the cookware in an outer edge region of the heating zone. In this region of the support surface, in which the bottom of the cookware contacts the heating zone formed by the heating element, a good heat transfer takes place both by means of heat conduction and by means of radiation.
- an electric radiant heater comprising an inner circular heating coil and an outer annular heating coil.
- the two heating coils are separated by a partition of insulating material.
- the EP 1 392 081 A2 discloses an electric radiant heater having a first heating zone and a second heating zone.
- An electrical terminal block on the periphery of the radiant heater allows the connection of the two heating zones with an electrical energy source.
- the DE 32 34 349 A1 discloses a radiator for glass ceramic cooking surfaces, which has at least two heating resistors, and a temperature sensor acting on at least two temperature protection switch different response temperature.
- the hob has a hob plate and an electromechanical switching element for adjusting the power of the electric heater.
- the invention has set itself the task of increasing the average thermal heat output for a cookware for a given radiator.
- the object is achieved by a method, a control device and a cooking appliance according to the independent claims.
- the invention proposes that the heating elements are operated in such a way that the second heating element provides a lower mean thermal surface power density than the first heating element.
- the control device is designed to carry out the method of the invention.
- Garellaeside is particularly proposed that the cooking appliance has a control device according to the invention.
- a radiator is preferably a radiant heater, which can preferably be installed in a cooktop, in particular a cooktop covered with a cover plate made of glass ceramic.
- the radiator may also be formed by a cast hotplate or the like.
- the radiant heater may have a heating conductor, which is designed, during normal operation of the radiator, a heat radiation, in particular an infrared radiation generated, which is preferably radiated in a preferred direction to the heating zone.
- the radiator may further comprise a halogen bulb, which may also be combined with a heat conductor.
- the radiation direction of the radiator or preferred direction of the radiation is directed in the installed in the hob in the direction of the cover plate, so that the generated radiation power can interact to interact with a set up on the opposite side of the cover plate cookware.
- a heating zone is formed and heating of the cookware by means of the heating element can be achieved.
- the radiator is for the purpose of providing thermal power supplied with electrical energy, which is provided for example by an electric power supply network such as the public power grid, an accumulator, a generator, combinations thereof or the like.
- the radiator has at least two adjacently arranged heating elements, which may be electrically separated from each other. This allows the heating elements to operate independently of each other. In a simplified arrangement can also be provided that the two heating elements have a common connection such that they can still be operated independently.
- the heating elements are arranged in a, in particular common, plane next to each other, wherein the first heating element is at least partially disposed radially circumferentially to the second heating element.
- the common plane is preferably unbent.
- the first heating element surrounds the second heating element in an annular manner.
- the two heating elements provide in this way the heating zone ready.
- the radiator has more than two heating elements. Preferably, these are also at least partially enclosed by at least one of the heating elements radially circumferentially. If the first heating element surrounds the second heating element, for example in the form of a circular ring, it can be achieved in particular in this embodiment that a good thermal coupling due to the crowning is made possible in the region of the first heating element, a cooking utensil placed on the heating zone.
- the first heating element is formed by a halogen illuminant and the second heating element is formed by a heating conductor.
- a reversed arrangement of the heating elements can be provided.
- the radiator is assigned a temperature limiter unit, by means of which the heating elements can be switched off when a predefined maximum first temperature is reached and switched on when the temperature falls below a predetermined minimum second temperature. This is preferably done automatically.
- the temperature limiter unit can thus be achieved a total temperature protection function both for the radiator and for the cooking appliance.
- the temperature limiter unit serves, for example, to protect the cover plate made of glass ceramic from overheating.
- the temperature limiter unit is also referred to as a temperature monitor, protector or the like.
- the first and second temperatures are slightly spaced apart, for example, the first temperature may be in the range of about 550 ° C, whereas the second temperature may be in the range of 500 to 520 ° C, for example.
- the temperature limiting unit is therefore arranged such that it is thermally coupled to the radiator such that it is acted upon by the radiation generated by the radiator.
- it is arranged between the heating elements and the cover plate.
- it may be formed as a separate component or integrally with the radiator.
- the heating elements are operated such that the second heating element provides a lower mean thermal surface power density than the first heating element.
- the at least two heating elements of the radiator can preferably be acted upon independently of each other with electrical energy. This makes it possible to adjust the thermal surface power density of the heating elements in a desired manner by varying the application of electrical energy.
- the second heating element is driven in such a way that its mean thermal surface power density is reduced compared to that of the first heating element. It is thereby achieved that the temperature limiting unit in the area in which there is an unfavorable thermal coupling to the cookware, is less thermally applied, so that overall a reduction of the response of the temperature limiter can be achieved. Nevertheless, as a result, overall a higher average thermal power can be transferred from the radiator to the cookware, so that in particular the cooking time can be reduced. Overall, up This way, a boost effect can be achieved, with the given radiator construction increased power transmission can be achieved. In addition, the invention makes it possible to achieve the inventive advantage also with existing radiator constructions.
- a corresponding control can be used by the control device. It is therefore not necessary to provide additional measuring devices in order to achieve the desired effect according to the invention can. In particular, it is not necessary to detect switching operations of the temperature limiting unit in detail by means of the control devices, for example by determining a current through the heating elements. In the invention it is only important that the mean thermal surface power density is adjusted in accordance with the invention. It does not matter for which electrical power the respective heating element is designed.
- the invention thus avoids to provide additional means by which the desired effect of the invention can be achieved. Only the already existing electrical devices need to continue to be used, so that the invention is also suitable to be retrofitted into existing facilities or cooking appliances or to be integrated into existing production lines in a simple manner.
- the heating elements are clocked to operate a predetermined mean thermal heating power by means of a common, adjustable clock with electrical energy acted upon.
- the clock may be formed, for example, as a control device which is manually operated by a user by means of a knob to adjust the desired average thermal heat output in the desired manner.
- the clock preferably clocks both heating elements together. In this embodiment, the clock may provide a higher level control combined with the operation according to the invention.
- the average thermal heat output is a thermal heat output, which is determined over one or more clock periods, according to which the heating elements are clocked.
- the clock periods for the at least two heating elements may also differ from each other.
- the clock generator may be designed in such a way that it applies the electrical energy to the heating elements separately from each other in a timely manner. In this way, not only the desired average thermal surface power density, but at the same time the average thermal heat output can be adjusted.
- the clock can, for example, by a electronic control can be formed, which can be adjusted for example by means of touch-sensitive keys, by means of a remote control, for example by means of a smartphone or the like.
- the second heating element is operated such that it provides a thermal surface power density of at most 7 W / cm 2 , preferably at most 6 W / cm 2 , particularly preferably in a range from 6 to 7 W / cm 2 . It has been shown that the intervention of the temperature limiter unit can be reduced especially if the predetermined values for the average surface thermal density are maintained. In particular, this applies to cover plates made of glass ceramic, which have a thickness of about 4 mm to 6 mm. Such cover plates are widely used, for example, in cooking appliances in the household.
- the operation of the second heating element takes place by evaluating a separate switching contact of the temperature limiting unit.
- the temperature limiter unit already has two switching contacts which can be operated independently of one another and which can be set for different temperatures, for example a main contact and an auxiliary contact.
- a hot indication of the cooking appliance or of the cooktop of the cooking appliance is operated by means of the second separate switching contact.
- the invention preferably uses this second separate switching contact to operate the second heating element in the desired manner.
- a response range of the separate second switching contact is set according to the temperature, so that the second switching element can be switched off prematurely.
- a maximum temperature may be 480 ° C, with a minimum temperature of 430 ° C.
- the switching contact can by a
- Control device are evaluated, which also controls the heating elements in the desired manner.
- the control device can control the second heating element as a function of the evaluation of the separate switching contact.
- the second heating element is operated independently of the first heating element, preferably exclusively by means of the separate switching contact. It is thereby achieved that different values or temperature limit values can be provided by the temperature limiter unit for the first and the second heating element. This makes it possible in a simple manner to be able to provide the lower mean thermal surface power density in relation to the first heating element in the case of the second heating element.
- the operation of the second heating element according to a predetermined clock table.
- the clock table is determined empirically, so that it is suitable for the usually occurring applications.
- This embodiment can be retrofitted in a particularly simple manner as well as integrate into existing production lines.
- the temperature sensor may be formed by, for example, a resistance temperature element such as a PT1000 or the like.
- an electronic circuit is provided to which the temperature sensor is connected and evaluates the signals supplied by the temperature sensor and uses to operate the second and possibly also the first heating element in a predeterminable manner or to control.
- the temperature sensor may, for example, be arranged in the region of the heating zone, as may be provided, for example, for realizing a frying sensor.
- the operation of the second heating element takes place according to a temperature of a cookware to be heated by means of the heating system, which temperature is detected by means of a measuring system.
- a temperature of a cookware to be heated by means of the heating system, which temperature is detected by means of a measuring system.
- This can be for example as be designed contactless measuring system, as it comes, for example, for a cooking sensor used.
- an electronic circuit can evaluate corresponding signals in order to operate the first and / or the second heating element in the desired manner.
- This embodiment makes it possible to include the cookware as a whole.
- the operation of the second heating element takes place on an energy source which supplies the radiator with electrical energy and / or an electromagnetic compatibility.
- at least the second heating element is operated in such a way that system perturbations in accordance with the standard DIN EN 60555-3-3 can be maintained.
- a corresponding combination of the operation of both heating elements can be provided, so that overall a reduction of the network perturbations can be achieved.
- the operation may provide for compliance with a standard regarding electromagnetic compatibility.
- the invention makes it possible, in particular due to an independent control of the heating elements, to reduce network perturbations and / or electromagnetic effects. Overall, compared with the prior art, given predetermined limit values, a higher power than is possible in the prior art can be used.
- the heating phase is preferably the time in which the cookware, preferably with the food to be cooked, is heated to the desired temperature for the intended cooking process.
- the heating phase is a period of time during which a maximum amount of thermal energy is supplied to the food in order to bring it to a desired cooking temperature in a timely manner.
- the heating up phase can start with the beginning of a cooking process. But it can also occur during a cooking process, namely For example, if during an ongoing cooking process, an elevated temperature is desired, additional cold food is added, and / or the like.
- Advantageous embodiments of the method according to the invention are to be regarded as advantageous embodiments of the control device according to the invention and the cooking appliance according to the invention.
- representational components of the process are formed alone or in combination to allow the process steps.
- Fig. 1 shows a cooking appliance in the form of a cooker 1 according to the invention.
- the stove 1 has a baking oven 21 and in the upper area a hob as a cooking hob 2 with four heating zones 8, 9, 10, 11.
- the cooktop 2 is in a schematic-perspective view in Fig. 2 shown.
- the cooktop 2 comprises for each of the heating zones 8, 9, 10, 11 each of these heating zone 8, 9, 10, 11 associated radiant heaters 4, 5, 6, 7.
- the radiant heaters 4, 5, 6, 7 are below a cover plate forming glass ceramic plate 3 disposed immediately adjacent.
- the cover plate 3 forms a working surface of the hob 2, on the cookware such as a pot 17 can be placed to heat this intended use.
- the cooktop 2 further comprises a control device 20, which has its own clock generator 15 for each of the radiant heaters 4, 5, 6, 7.
- the timer 15 can be adjusted by manual input to a manual input device of the controller 20 by a user in a desired manner.
- the radiant heaters 8, 9, 10, 11 basically the same, that is, in the present case are all designed as a two-circuit radiant heater, each having two adjacent mutually arranged heating elements 12, 13, the present each formed by a heating conductor ( Fig. 3 ).
- the heating conductors 12, 13 are arranged adjacent to one another in such a way that a first heating conductor 12 radially revolves to a second Heating conductor 13 is arranged.
- the heating conductors 12, 13 are arranged in a substantially non-curved plane.
- the heating conductor 12 thus forms a radially outer heating ring around the heating circuit 13 forming a heating circuit around.
- the radiant heaters 8, 9, 10, 11 comprise in a known manner a thermal insulation material 22, which is arranged both below the heating conductors 12, 13 and in the outer edge region of the radiant heater 8, 9, 10, 11 as well as in a space formed between the heating conductors , This arrangement is also arranged with the interposition of the insulating material 22 in a holding plate 23.
- the radiant heater 8 whose further structure, which corresponds to the reason of the further radiant heater 9, 10, 11.
- the radiant heaters 8, 9, 10, 11 may be identical and have identical constructions and performances. However, it can also be provided that the radiant heaters 9, 10, 11 have different diameters and powers. Likewise, the invention remains applicable.
- a temperature limiting unit is attached to the radiant heater 8 as a protector 14.
- the protector 14 has a sensor tube 24, which is arranged in the plan view above the heating conductors 12, 13. In this way, the sensor tube 24 of the protector 14 is acted upon by the same heat radiation as the radiant heater 8 associated heating zone 4 of the glass ceramic plate 3.
- the sensor tube 24 is attached to a retaining plate 23 externally mounted switch housing 26. In the switch housing 26, a first switching contact 25 is arranged, which can be actuated by means of the sensor tube 24.
- a switching threshold of the first switching contact 25 is set such that the glass ceramic plate 3 is protected against overheating, which is why the switching contact 25 is set such that it switches off automatically at a first maximum temperature of 550 ° C here. If the temperature then drops to 500 ° C., the first switching contact 25 is automatically switched on again by means of the sensor tube 25. As a result, an overheating protection for the glass ceramic plate 3 is ensured.
- the first switching contact 25 is used to turn off both the first and the second heating conductors 12, 13 together, in front of the glass ceramic plate 3 To protect overheating.
- the radiator 8 is thus connected in total here.
- a terminal lug 31 is provided, to each of which one end of the heating conductors 12, 13 is connected.
- Fig. 4 shows a typical concrete application in the normal operation of the heating of a filled with food 18 pot 17, which is placed on the heating zone 4 of the hob 2. From the schematic sectional view according to Fig. 4 It can be seen that the pot has a crown 19, which leads in the center of the bottom of the pot 17 to an air gap to the glass ceramic plate 3. The pot 17 is therefore only in an outer edge region in contact with the glass ceramic plate 3, so that in this area heat due to radiation and heat conduction in the pot bottom of the pot 17 can be performed. In the inner area, however, heat transfer is possible only due to radiation. As a result, the heat transfer from the heating zone 4 is reduced to the bottom of the pot 17 in the center, so that in the prior art in this area comes to overheating. As a result, the protector 14 turns off both the first and second heating conductors 12, 13 regularly so that the glass-ceramic plate 3 is not overheated. The protector 14 thus causes a clocking of the radiator 8 by means of a first switching contact 25th
- the invention now makes use of the knowledge that the total transferable thermal power can be increased if the protector 14 less often, preferably not, must intervene in the intended heating operation. This can be achieved by reducing the mean thermal surface power density of the second heat conductor 13 so that the conventional overheating in the central region of the heating zone 4 can be avoided.
- the invention achieves this by a small change to the radiant heater 8 and its protector 14.
- the protector 14 usually has a second switching contact 16, which is commonly used in the prior art to operate a heating indicator. In cooktops of the generic type, however, it is often no longer necessary to use this second switching contact of the protector 14.
- the hot indication is usually via the control device 20, which has its own measuring and / or control devices for this purpose.
- the second switching contact 16 is connected via a connection contact 32 to the control device 20 (not shown), which evaluates this. According to the evaluation, only the second heating conductor 13 is operated and its temperature threshold is set such that it lies below the temperature threshold at which the first switching contact 25 is actuated. It is thereby achieved that the mean thermal surface power density in the central region is reduced on average due to the early engagement of the switching contact 16, so that the first switching contact 25 need not or only very rarely be actuated by the sensor tube 24.
- the second switching contact 16 is actuated by the same sensor tube 24, so that no additional components are required.
- FIG. 5 schematically shows a diagram in which the time t is shown on the abscissa and the temperature T in the region of the heating zone 4 on the ordinate.
- a first graph 27 shows a temperature profile which is achieved with the method according to the invention, as explained above.
- Another graph 28 illustrates in parallel a temperature profile according to the prior art.
- the invention sets up a temperature profile in the region of the heating zone 4 according to the graph 27. It can be seen that, after the time t 1 has been exceeded, a clocking due to the second switching contact 16 takes place with a significantly smaller amplitude and period. As a result, overall the average temperature according to the graph 30 can be significantly above the mean temperature according to the graph 29, which is why the maximum transferable thermal power is increased accordingly. As a result, a cooking time can be significantly reduced, so that overall a boost function can be provided.
- the invention therefore requires particularly little or no additional elements in a particularly advantageous manner. It can be realized with the existing resources, so that not only a simple retrofitting, but also a simple addition to an existing production line can be achieved. In particular, it is not necessary to detect when the protector intervenes switching, or to detect the course of an electric current or an electric power of the radiator 8.
- the mean thermal surface power density does not exceed 7 W / cm 2 , in particular 6 W / cm 2 , particularly preferably 6 to 7 W / cm 2 . If the thermal surface power density is limited to the predetermined value, an intervention of the protector 14 can be substantially avoided.
- the transmitted power due to the different thermal surface power density in the cookware leads to substantially no impairment of a temperature distribution in the bottom of the cookware. This is due, inter alia, to the fact that high thermal outputs are essentially required to heat up liquid cooking product 18, which by itself already ensures temperature compensation due to its properties. Moreover, in frying operations, the high thermal performance is usually only required for heating the cookware for frying, requiring significantly less power during the actual frying process. As a result, however, the boundary conditions that lead to the intervention of the protector 14, as a rule, no longer exist, so that in this case, a largely uniform thermal surface power density can be provided as in the prior art, that is, a very homogeneous temperature distribution can be reached in the bottom of the pot.
- first and the second heating conductors 12, 13 in accordance with different timing tables for the heating conductors 12, 13. These may for example be determined empirically, so that an intervention of the protector 14 can essentially be avoided.
- a different clocking for the first and the second heating conductors 12, 13 may be provided in order to vary the power density distribution within the heating zone 4 can.
- the maximum thermal heating power can be realized in each heating zone by the optimization by means of the timing of the first and second heating conductors 12, 13 takes place.
- the heating conductors 12, 13 of the radiator 8 In order to heat the heating zone as quickly as possible to the desired operating temperature, it may be useful at the beginning of a cooking or frying process the heating conductors 12, 13 of the radiator 8 to operate simultaneously and finally in response to the one or more thresholds, the heating power according to Requirement to vary.
- a cycle time or a cycle time of the second heat conductor 13 is designed as short as possible in a boost operation. This allows a higher temperature level can be achieved (see Fig. 5 ), which can further reduce the cooking time.
- the determination of the cycle time or clock rate takes into account standards such as DIN EN 55014-1 and / or DIN EN 61000-3-3.
- the boost function is limited in time in order to reduce as much as possible the high load of the glass-ceramic plate 3 due to the high power, so that a deterioration of the service life of the glass-ceramic plate 3 can be largely avoided.
- control device 20 has a power management in order to optimize a maximum phase load of a phase of an electrical power supply can.
- the invention achieves this while avoiding the measurement of electrical quantities.
- the invention can be easily retrofitted or integrated into running production lines, for example, by adjusting clock tables.
- existing systems such as a frying and / or cooking sensors can be used even more effectively.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Electric Stoves And Ranges (AREA)
- Control Of Resistance Heating (AREA)
Claims (10)
- Procédé pour le fonctionnement d'un corps de chauffage (8, 9, 10, 11) présentant au moins deux éléments de chauffage (12, 13) disposés en position réciproquement adjacente pour un cuiseur à vapeur (1), dans lequel les éléments de chauffage (12, 13) sont disposés en position réciproquement adjacente d'une manière telle qu'un premier des éléments de chauffage (12) est disposé de façon à entourer au moins en partie en direction radiale un deuxième des éléments de chauffage (13), dans lequel une unité de limitation de température (14) attribuée au corps de chauffage (8, 9,10 ,11) met hors tension les éléments de chauffage (12, 13) lorsqu'une première température maximale prédéfinie (Tmax) est atteinte et dans lequel les éléments de chauffage (12, 13) sont activés d'une manière telle que le second élément de chauffage (13) procure une densité de puissance thermique moyenne en surface inférieure à celle du premier élément de chauffage (12), caractérisé en ce que l'unité de limitation de température (14) met sous tension les éléments de chauffage (12, 13) lors d'un dépassement vers le bas d'une seconde température minimale prédéfinie (Tmin), en ce que les éléments de chauffage (12, 13) sont sollicités de manière synchronisée avec de l'énergie électrique au moyen d'un générateur de synchronisation commun réglable (15) pour l'activation d'une puissance de chauffage thermique moyenne prédéfinie, l'activation du second élément de chauffage (13) ayant lieu via l'évaluation d'un contact de commutation séparé de l'unité de limitation de température (16).
- Procédé selon la revendication 1, caractérisé en ce que le second élément de chauffage (13) est activé d'une manière telle qu'il procure une densité de puissance thermique en surface maximale de 7 W/cm2, de préférence au maximum de 6 W/cm2, de manière particulièrement préférée dans une plage de 6 à 7 W/cm2.
- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'activation du second élément de chauffage (13) a lieu conformément à un tableau de synchronisation prédéfini.
- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'activation du second élément de chauffage (13) a lieu conformément à une troisième température enregistrée au moyen d'un capteur de température dans les parages d'une zone de chauffage (4, 5, 6, 7) formée par le corps de chauffage (8, 9, 10, 11).
- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'activation du second élément de chauffage (13) a lieu conformément à une température enregistrée au moyen d'un système de mesure, d'un ustensile de cuisson (17) qui doit être chauffé au moyen du corps de chauffage (8, 9, 10, 11).
- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'activation du second élément de chauffage (13) a lieu en prenant en compte des répercussions du réseau sur une source d'énergie alimentant en énergie électrique le corps de chauffage (8, 9, 10, 11) et/ou une compatibilité électromagnétique.
- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le procédé est mis en oeuvre d'une manière limitée dans le temps.
- Procédé selon la revendication 7, caractérisé en ce que le procédé est mis en oeuvre uniquement pendant une phase de chauffage.
- Dispositif de commande (20) pour le fonctionnement d'un corps de chauffage (8, 9, 10, 11) présentant au moins deux éléments de chauffage (12, 13) disposés en position réciproquement adjacente pour un cuiseur à vapeur (1), dans lequel le dispositif de commande (20) présente un générateur de synchronisation réglable (15), commun pour les éléments de chauffage (12, 13), pour le réglage d'une puissance thermique moyenne du corps de chauffage (8, 9, 10, 11), auquel sont raccordés les éléments de chauffage (12, 13), caractérisé en ce que le dispositif de commande (20) est réalisé pour la mise en oeuvre du procédé selon l'une quelconque des revendications précédentes.
- Cuiseur à vapeur (1) comprenant un corps de chauffage (8, 9, 10, 11) présentant au moins deux éléments de chauffage (12, 13) disposés en position réciproquement adjacente, une unité de limitation de température (14) attribuée au corps de chauffage (8, 9, 10, 11), ainsi qu'une plaque de recouvrement (3), dans lequel le corps de chauffage (8, 9, 10, 11) est disposé contre la plaque de recouvrement (3) pour la mise en oeuvre d'une puissance thermique générée lors de l'utilisation prévue du corps de chauffage (8, 9, 10, 11), à travers la plaque de recouvrement (3), et l'unité de limitation de température (14) est disposée entre la plaque de recouvrement (3) et les éléments de chauffage (12, 13) du corps de chauffage (8, 9, 10, 11), caractérisé par un dispositif de commande (20) selon la revendication 9.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014215776.5A DE102014215776A1 (de) | 2014-08-08 | 2014-08-08 | Verfahren zum Beschleunigen eines Kochvorgangs, Steuereinrichtung sowie Gargerät hierfür |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2983449A1 EP2983449A1 (fr) | 2016-02-10 |
EP2983449B1 true EP2983449B1 (fr) | 2018-07-18 |
Family
ID=54007501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15179657.0A Active EP2983449B1 (fr) | 2014-08-08 | 2015-08-04 | Procede d'acceleration d'un processus de cuisson, dispositif de commande et appareil de cuisson correspondant |
Country Status (2)
Country | Link |
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EP (1) | EP2983449B1 (fr) |
DE (1) | DE102014215776A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234349A1 (de) * | 1982-09-16 | 1984-03-22 | Ego Elektro Blanc & Fischer | Heizkoerper fuer glaskeramikkochflaechen |
US20130146585A1 (en) * | 2011-12-09 | 2013-06-13 | E.G.O. Elektro-Geratebau Gmbh | Control Device for an Electrical Heating Device for a Cooking Field, Cooking Field and Method for Operating Such an Electrical Heating Device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2087698B (en) * | 1980-11-17 | 1984-03-28 | Micropore International Ltd | Electric radiant heater unit |
DE3206024A1 (de) | 1982-02-19 | 1983-09-08 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Elektrokochplatte, vorzugsweise glaskeramik-kochmulde |
DE3378516D1 (en) * | 1982-09-16 | 1988-12-22 | Ego Elektro Blanc & Fischer | Heating element, especially radiant heating element for the heating of ceramic plates |
DE4022846C2 (de) * | 1990-07-18 | 1994-08-11 | Schott Glaswerke | Vorrichtung zur Leistungssteuerung und -begrenzung bei einer Heizfläche aus Glaskeramik oder einem vergleichbaren Material |
GB2327541A (en) * | 1997-07-17 | 1999-01-27 | Ceramaspeed Ltd | Electric heater control for a glass-ceramic top cooking appliance |
GB0217351D0 (en) * | 2002-07-25 | 2002-09-04 | Ceramaspeed Ltd | Radiant electric heater |
US8274020B2 (en) * | 2010-05-04 | 2012-09-25 | Whirlpool Corporation | Apparatus and method of controlling a triple heating element of a cooking appliance |
-
2014
- 2014-08-08 DE DE102014215776.5A patent/DE102014215776A1/de not_active Withdrawn
-
2015
- 2015-08-04 EP EP15179657.0A patent/EP2983449B1/fr active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234349A1 (de) * | 1982-09-16 | 1984-03-22 | Ego Elektro Blanc & Fischer | Heizkoerper fuer glaskeramikkochflaechen |
US20130146585A1 (en) * | 2011-12-09 | 2013-06-13 | E.G.O. Elektro-Geratebau Gmbh | Control Device for an Electrical Heating Device for a Cooking Field, Cooking Field and Method for Operating Such an Electrical Heating Device |
Also Published As
Publication number | Publication date |
---|---|
EP2983449A1 (fr) | 2016-02-10 |
DE102014215776A1 (de) | 2016-02-11 |
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