EP2550841A1 - Kochmuldenvorrichtung - Google Patents
KochmuldenvorrichtungInfo
- Publication number
- EP2550841A1 EP2550841A1 EP11704632A EP11704632A EP2550841A1 EP 2550841 A1 EP2550841 A1 EP 2550841A1 EP 11704632 A EP11704632 A EP 11704632A EP 11704632 A EP11704632 A EP 11704632A EP 2550841 A1 EP2550841 A1 EP 2550841A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching element
- time
- period
- contact
- switching
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims description 70
- 230000006698 induction Effects 0.000 claims description 45
- 230000008859 change Effects 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 20
- 230000000903 blocking effect Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000006399 behavior Effects 0.000 description 5
- 238000010411 cooking Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- 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
- H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
Definitions
- the invention is based on a hob device according to the preamble of claim 1.
- a cooktop device which comprises a resonant circuit, a control unit and a switching element which has a first and a second switching means.
- a period of oscillation of the resonant circuit is divided into first time intervals, in which voltage is applied to the resonant circuit, and in second time intervals, in which no voltage is applied.
- the control unit causes the switching element in at least one operating operation to periodically establish a certain electrical contact and interrupt.
- a cooktop device in which a coil is operated alternately at different frequencies during an operating process.
- the object of the invention is in particular to provide a generic device with improved properties in terms of an effective design.
- the object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
- the invention is based on a cooktop device, in particular an induction cooktop device, with at least one switching element and at least one control unit which, in at least one operating operation, causes the switching element to periodically produce and interrupt a specific electrical contact substantially periodically.
- control unit causes the switching element in the operating process to be operated in a primitive period of the substantially temporally peri odischen making and breaking the particular electrical contact at least twice to establish the specific electrical contact.
- a "control unit” is to be understood as meaning, in particular, an electronic unit which controls an operation in at least one operating procedure, wherein the electronic unit preferably has at least one memory unit and / or one arithmetic unit and / or one operating program which is stored in the memory unit
- An "electrical contact” is to be understood as meaning, in particular, an electrically conductive connection, which may be formed in particular by metal components.
- a "time-periodic" establishment and interruption of an electrical contact in an operating process is to be understood in particular as establishing and interrupting an electrical contact, which causes a switching function to be periodic for a total time during which the operating process takes place distinguishes the function from a periodic pulse function with a primitive period consisting of a first time period in which the pulse function is periodic and a second time period in which the pulse function is zero.
- Function "should be understood in particular a function which is defined by having the function value 1 for all points in time in which the contact exists, and has the function value zero for all points in time at which the contact is interrupted.
- An "operating process” is to be understood as meaning, in particular, a part of a heating process of a cookware, the part preferably lasting at least 0.01 seconds, preferably at least one second and particularly preferably at least ten seconds
- Electrical contact is to be understood in particular a making and breaking an electrical contact, which takes place in a time interval consisting of at least two and in particular more than two periods, wherein for all pairs of periods of time periods for which a first period of the pair immediately A time period precedes a second time period of the pair, it holds that the two time periods of the pair with respect to their length by at most twenty percent, preferably by at most five percent, preferably by at most one percent and more preferably by at most 0.0 1 percent differ from each other and an integral difference characteristic of the two time segments of the pair is at most 0.3, preferably at most 0, 1 preferably at most 0.01 and particularly preferably zero, wherein the time interval is subdividable in periods corresponding to the above for the time segments meet the applicable conditions and which timescales zer than the
- a "primitive period" of the essentially time-periodic production and interruption of the electrical contact should be understood as meaning in particular one of the time segments, wherein in the case in which the switching function is periodic, the period is a primitive period of the switching function
- the integral difference parameter is for the case in which the temporal elapse of the two time periods of the
- the duration of a pair of times or the same duration lasts as the other of the two periods of time
- t 2 is an end of the other time segment
- T t 2 -t ⁇
- f is the switching function.
- the integral difference parameter is given for the case in which the temporally earlier passing of the two time periods of the pair is shorter in time than the time lapse of the two time periods of the pair, given by f (t) -f (t + T) t- ⁇ has a starting time of shorter duration.
- an effective construction can be achieved.
- a low noise level during operation of the hob unit can be achieved.
- a large interval of possible output powers can be achieved for a particular period duration.
- a flexible switching of the switching element can be achieved.
- At least two total turn-on times, during which the contact is made continuously during the period differ.
- a “total switch-on time” is to be understood as meaning, in particular, a total duration of a time span during which the contact is continuously selected. the period is established with the establishment of the contact and the time period ends with a break in the contact and wherein the period has at least two total turn-on.
- the control unit causes the switching element to make contact in at least two different time intervals.
- making the contact at least two different time intervals is meant in particular that the contact is made at a first time, then interrupted, thereafter made at a second time, the contact is interrupted after the second time, and the Contact is subsequently restored at a third time, wherein a time difference between the second time and the first time and a time difference between the third time and the second time differ, whereby a particularly flexible switching can be achieved ,
- control unit causes the switching element in at least one operating mode to produce the contact substantially periodically and exactly once during a period of time. In this way, a versatile switching behavior can be achieved.
- control unit is provided to cause the switching element to interrupt the contact while the switching element is de-energized.
- currentless is understood to mean that a current flowing between two main contacts of the switching element has the current value of zero amperes.
- a "main contact" of a switching element is understood to mean, in particular, a contact of the switching element which is used to conduct a Power is provided to a consumer unit, which is formed separately from the switching element.
- a consumer unit which is formed separately from the switching element.
- only the emitter and the collector are main contacts. As a result, a gentle switching and in particular a low energy loss can be achieved.
- the cooker device comprises at least one control device which is arranged to cause the switching element to make or break the contact at least once while a heating element is de-energized and to cause another switching element to make another contact at least once while the heating element carries current.
- a gentle and comfortable operation can be achieved.
- it can be achieved that, during operation of the switching element, a low energy loss occurs and a large interval of heating powers, with which the heating element can be operated, is available.
- low-noise operation of the cooker device can be achieved.
- the cooktop device has at least one control device which is provided for a period-related time interval which exists between one transmission period of the switching element and one transmission period of a further switching element and which exists within the primitive period and another period-related one Time interval that exists between the passage period of the switching element and another passage time period of the other switching element and within the same primitive period expires, to change the heating power of a heating element to change.
- a "period-related" time interval is to be understood as meaning, in particular, a duration of the time interval in seconds divided by a duration of the primitive period in seconds Main contact of the switching element are electrically connected. This allows a high degree of flexibility and in particular a flexible change in the heating power can be achieved.
- control unit be provided for a total number of times the contact is made during the primitive period change. In this way, a heating power can be flexibly changed, in particular with a temporally constant primitive period.
- the Kochmuldenvorraum has a control device, which switches the switching element and another switching element in such a way that the primitive period consists of at least three time intervals in which the switching element makes the contact exactly once and the other switching element exactly one more contact Times and each of the time intervals ends at a time at which the other switching element interrupts the further contact.
- the primitive period consists of at least three time intervals in which the switching element makes the contact exactly once and the other switching element exactly one more contact Times and each of the time intervals ends at a time at which the other switching element interrupts the further contact.
- a switching behavior of the two switching elements in the respective time interval differs from a switching behavior of the two switching elements in a majority of the time intervals.
- a "large part" of the time intervals is to be understood in particular as meaning a number of time intervals which corresponds to at least fifty percent and preferably at least seventy percent of a total number of time intervals It should be understood, in particular, that the two time intervals are of different lengths or, if the time intervals are the same length, that at least one of the switching elements switches at a first time in the one time interval and this switching element at a second time is inactive in the other time interval, wherein the second time in the other time interval is arranged the same as the first time in the one time interval.
- a heating power can be set flexibly, in particular with a time-constant primitive period duration.
- the control device is provided to change a period-related time duration of at least one of the time intervals.
- a "period-related time duration” should be understood to mean, in particular, a time duration of the relevant time interval divided by the primitive period duration, whereby a flexible power supply of the heating element can be achieved.
- the switching element is a bipolar transistor with insulated gate electrode. As a result, efficient usability can be achieved.
- the cooktop device has at least one circuit, which rather has the switching element and at least one further switching element.
- the switching element has the switching element and at least one further switching element.
- the circuit has at least a third switching element. This allows a high degree of flexibility can be achieved.
- the cooktop device has at least one first induction heating circuit, which has the switching element. This allows a user-friendly heating can be achieved.
- the cooktop device has at least one second induction heating circuit and at least one further control unit, which causes at least one switching element of the second induction heating circuit to produce and interrupt an electrical contact substantially periodically with the period duration during the operating process.
- This allows a low-noise and effective cooking can be achieved.
- noises can be avoided which occur when making and breaking the contacts of the first and second induction heating circuits with frequencies that differ and whose difference is smaller than 17 kHZ.
- FIG. 2 is a circuit diagram of an induction heating circuit of the induction cooker apparatus
- FIG. 3 is a schematic representation of periods of two voltages applied by two control units of the induction cooker apparatus, a voltage between two specific points of the induction heating circuit and a current through a coil of the induction heating circuit.
- Fig. 3a shows an alternative time course of the voltages, which of the
- Fig. 4 shows a further alternative time course of the voltages, which
- FIG. 6 shows performance curves for an operating procedure, a specific operating mode and a further operating mode
- Fig. 7 shows an alternative induction heating circuit.
- FIG. 1 shows a plan view of an induction hob with an induction hob according to the invention, which coils 38 and a cookware carrier surface 40 has.
- the coils 38 are heating elements 38 'and are intended to generate eddy currents in cooking utensils (not shown) during cooking operations, which heat the cookware, thereby heating food in the cookware.
- the induction hob assembly has a circuit 26 formed as an induction heating circuit 26 '(FIG. 2) having one of the coils 38.
- the induction cooker device has further induction heating circuits, which are identical to the induction heating circuit 26 'and also have one of the coils 38.
- the induction heating circuit 26 ' comprises two switching elements 10, 28 each formed as an insulated gate bipolar transistor. Further, the induction heating circuit 26' includes two control units 12, 13 provided for controlling the switching elements 10, 28.
- the control unit 12 causes the switching element 10 in an operation to time periodically an electrical contact, namely an electrical contact between see a collector 44 and an emitter 46 of the formed as a bipolar transistor with insulated gate switching element 10 to produce and interrupt.
- the control unit 12 applies a voltage 42 (FIG. 3) between a gate 48 of the switching element 10 and the emitter 46, which is a periodic function with respect to time.
- the control unit 12 causes the switching element 10 to make contact twice during a primitive period 14 of time-periodic making and breaking of the electrical contact.
- the period 14 is identical to a period of the voltage 42, which is a periodic function.
- the period 14 is composed of four directly successive time intervals.
- Two of the time intervals are total turn-on times 16, 18 during which the voltage 42 causes the contact to be made uninterrupted.
- Two of the time intervals are total off times 50, 52 during which the voltage 42 causes the contact to be broken.
- the two total switch-on times 16, 18 have different lengths.
- the control unit 12 causes the switching element 10 in the operating process to make the contact in two different time intervals 20, 22.
- the time interval 20 is the time interval between establishing the contact that occurs at the beginning of the total turn-on time 16 and establishing the contact that occurs at the beginning of the total turn-on time 18.
- the time interval 22 is the time interval between the establishment of the contact, which takes place at the beginning of the total turn-on time 18, and the making of the contact, which adjoins the total turn-off time 52 in terms of time.
- the total switch-off time 52 follows directly on the total turn-on time 18, the total turn-off time 50 follows directly on the total turn-on time 16.
- a diode 54 is connected.
- the switching element 28 is also an insulated gate bipolar transistor. Further, the emitter 46 is conductively connected to a collector 56 of the switching element 28.
- the control unit 13 applies a voltage 58 between a gate 64 of the switching element 28 and an emitter 60 of the switching element 28 during the operation (FIGS. 2 and 3).
- a diode 62 is connected.
- the voltage 58 is designed such that it causes a conductive contact between the collector 56 and the emitter 60 whenever the contact between the emitter 46 and the collector 44 is interrupted.
- the voltage 58 is formed so that the contact between the collector 56 and the emitter 60 is interrupted whenever the conductive contact between the emitter 46 and the collector 44 is present.
- the collector 44 is conductively connected to a positive pole of a voltage source 66. Furthermore, the emitter 46 is conductively connected to a minus pole of the voltage source 66.
- the voltage source 66 supplies DC during operation. In principle, it is conceivable that the voltage source 66 outputs a rectified alternating current.
- a resistor 68 incorporating a resistor of a cookware to be heated, one of the coils 38 having an inductance of twenty-five microhenries, and a cooktop condenser 70 are connected in series and connected in parallel with the diode 62 in total.
- the capacitor 70 has a capacitance of 1440 nanofarads.
- FIG. 3 shows a time profile of a current 80 which flows through the coil 38 of the circuit 26 during the operation. Furthermore, a time profile of a voltage 86, which is applied between two points 82, 84 in the course of operation, is shown. A straight line 88 forms a zero line for the current 80 and the voltage 86.
- the period duration 14 is composed of individual time intervals Ti, T 2 ,..., T n , where n can be any natural number, which greater than one ( Figure 3a).
- n 3.
- the voltage 42 at certain contact times Du, D 12 , D 1n which are time intervals and which parts of the time intervals Ti, T 2 , ..., T n , the contact between the collector 44 and the emitter 46 ago.
- the voltage 58 at specific contact times D 2 i, D 2 2, D 2n which are time intervals and which parts of the time intervals T 1; T 2 , ..., T n are, the contact between the collector 56 and the emitter 60 ago.
- the contact between the collector 44 and the emitter 46 is in each of the time intervals T 1; T 2 , ..., T n produced exactly once. Further, the contact between the collector 56 and the emitter 60 in each of the time intervals T 1; T 2 , ..., T n produced exactly once. Between the individual contact times Du, D 12 , D 1n and D 21 , D 22 , D 2n there can be non-disappearing blocking times du, d 12 , ..., d 1n and d 21 , d 22 , ..., d 2n in which neither the contact between the collector 56 and the emitter 60 nor the contact between the collector 44 and the emitter 46 is.
- the condition that at least one of the time intervals T 1; T 2 , ..., T n is constructed differently and / or has a different length than at least one other of the time intervals T 1; T 2 , ..., T n .
- the blocking times du, d 12 , ..., d 1n and the blocking times d 21 , d 22 , ..., d 2n are equal to zero and / or the contact times Du, D 12 , D 1n and Contact times D 21 , D 22 , D 2n each one half of the time interval of which they are part, or the contact times Du, D 12 , D 1n and the contact times D 21 , D 22 , D 2n each of a half of that time interval whose Part they are different.
- the control device 1 1 turns on a first one of the switching elements 10, 28, thus providing a conductive connection between the emitter 46, 60 and the collector 44, 56 of the relevant switching element 10, 28, while the heating element 38 'Electricity leads. Further, the control device 1 1 switches a second one of the switching elements 10, 28 to Mandarin, while the heating element 38 'de-energized is. Furthermore, the control device 1 1 switches both switching elements 10, 28 into a blocking state, ie interrupts conductive connections which exist within both switching elements 10, 28 between the respective emitters 46, 60 and collectors 44, 56, while the heating element 38 'carries current.
- One of the blocking periods d 12 , d 2 2 may be a dead time of one of the switching elements 10, 28.
- a second time interval switching mode differs from the first time interval switching type only in that one of the switching elements 10, 28 is switched to the blocking state, while a conductive connection between the emitter 46, 60 and the collector 44, 56 of the relevant switching element 10, 28 is de-energized.
- the control device 1 1 a first and / or a second period-related time interval p 12 , P22 change during an operation for changing a heating power of Schuelemetns 38 '.
- the first period-related time interval p 12 is the blocking time d 12 divided by the primitive period length 14.
- the second period-related time interval p 22 is the blocking time d 22 divided by the primitive period length 14.
- a fourth time interval switch type differs from the first time interval switch type only in that d 12 + D 12 is not equal to 0.5.
- a fifth time interval switching type differs from the second time interval switching type only in that one of the switching elements 10, 28 is switched to the blocking state, while a conductive connection between the emitter 46, 60 and the collector 44, 56 of the relevant switching element 10, 28 is de-energized.
- the control device 1 1 can control the switching elements 10, 28 such that the switching elements 10, 28 in each of the time intervals ⁇ 1; T 2 , ..., T n is switched in one of the five described time interval switching modes, wherein the time interval switching modes of the individual time intervals Ti, T 2 ,..., T n may differ.
- the control device 1 1 can change the total number n of the time intervals Ti, T 2 ,..., T n of which the period duration 14 exists to change a heating capacity of the heating element 38 '. Furthermore, during operation of the cooktop device, the control device 1 1 can change a quotient between one of the time intervals Ti, T 2 ,..., T n and the period 14 for changing a heating power of the heating element 38 '.
- the control unit 12 causes the switching element 10 to periodically establish contact between the collector 44 and the emitter 46, the switching element 10 making the contact once in a period 24 once and interrupting once (FIGS. 2 and 4).
- the control unit 13 causes the switching element 28 to periodically establish the contact between the collector 56 and the emitter 60, wherein the switching element 28 makes the contact in the period 24 exactly once and interrupts once.
- the contact between the collector 44 and the emitter 46 is established during the period 24 continuously during a time interval 71 which starts at the beginning of the period 24 and is less than one half of the period 24. During the time interval 71 is the contact between the collector 56 and the emitter 60 is interrupted.
- the period 24 consists of the time interval 71 and a time interval 72.
- the contact between the collector 44 and the emitter 46 is interrupted and the contact between the collector 56 and the emitter 60 is established.
- the time intervals 71, 72 each form one half of the period 24.
- Figure 6 shows a power curve 90 of the induction heating circuit 26 'in operation, a power curve 91 of the induction heating circuit 26' in the particular mode of operation, and a power curve 92 of the induction heating circuit 26 'in the further mode of operation.
- the power curves 90 to 92 are each closed. Further, the power curves 90, 91 each define an area.
- abscissa 94 is a frequency, which for the power curve 90, the inverse of the period 14, that is one divided by the period 14 and which for the power curves 91, 92 is the inverse of the period 24 plotted.
- a heating power dissipated by the coil 38 of the induction heating circuit 26 ' is removed.
- the time intervals 20, 22, the total turn-on times 16, 18 and the total turn-off times 50, 52 and of blocking times, which can be inserted between the total turn-on times 16, 18 and the total turn-off times 50, 52 and which in FIG 2 i, d 2 2 and du, d 12 are mentioned and in which both switching elements 10, 28 make no contact it is achievable that the coil 38 of the induction heating circuit 26 'in a by a point of the surface, which is bordered by the power curve 90 is operating, described manner, namely at a defined by the point of the surface value of the period 14 yields a certain power through the point of the surface.
- An analogous meaning has that surface, which is bordered by the power curve 91, wherein the surface is formed by a variation of the time interval 71 and the frequency.
- the power which the coil 38 provides in the operation is different from those provided by the coil 38 in the particular mode of operation and in the further mode of operation.
- a so-called power factor is 0.5, with the power factor passing through
- R is a value of the resistor 68
- L is the inductance
- the other induction heating circuits are identical to the induction heating circuit 26 '.
- One of the further induction heating circuits 32 (FIGS. 1 and 5) has control units 34, 35 and switching elements 36, 37, which are caused by the control units 34, 35 during the operating process to periodically establish and interrupt electrical contacts 14 periodically with the period 14.
- the induction heating circuit 32 and the induction heating circuit 26 ' are part of an electronic assembly consisting of the induction heating circuits 32, 26'.
- the Indu Vietnamesesweschalt Vietnamese 32 works in the particular or in the other operating mode, which is achieved by the coils 38 of the IndutechnischsSystemschaltge 26 ', 32 can be operated with different output powers and the cooktop device works very quietly. It can be advantageously avoided that the Induction heating circuits 26 'and 32 are operated with different periods. Different output powers are z. B. advantageous if the Indutechnischsdorfschalt Vietnameseen 32, 26 'different cookware to be heated differently.
- FIG. 7 shows an alternative embodiment. Substantially identical components, features and functions are basically numbered by the same reference numerals. In order to distinguish the exemplary embodiments, however, the letter "a" is added to the reference symbol of the exemplary embodiment in Figure 7. The following description is essentially limited to the differences from the exemplary embodiment in Figures 1 to 6, with respect to components that remain the same and functions can be referred to the description of the embodiment in Figures 1 to 6.
- Figure 7 shows an alternative embodiment of a circuit 26a, namely an induction heating circuit 26'a.
- the induction heating circuit 26'a comprises control units 12a, 13a and further comprises two further control units 74a, 76a.
- the induction heating circuit 26'a comprises two additional switching elements 30a , 31 a, which as Bipolartra Insulated gate electrodes are formed, and two further diodes 78a.
- the control units 12a and 76a output the voltage 42 (FIG. 3), respectively.
- the control units 13a and 74a output the voltage 58.
- the switching elements 10a, 28a, 30a, 31a are identical.
- control unit 52 total switch-off time
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201030420A ES2390688B1 (es) | 2010-03-23 | 2010-03-23 | Dispositivo de encimera de cocción, encimera de cocción y procedimiento de mando de dicha encimera de cocción |
PCT/EP2011/052752 WO2011117041A2 (de) | 2010-03-23 | 2011-02-24 | Kochmuldenvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2550841A1 true EP2550841A1 (de) | 2013-01-30 |
EP2550841B1 EP2550841B1 (de) | 2017-05-10 |
Family
ID=43919895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11704632.6A Active EP2550841B1 (de) | 2010-03-23 | 2011-02-24 | Kochmuldenvorrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2550841B1 (de) |
ES (2) | ES2390688B1 (de) |
WO (1) | WO2011117041A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2741572B1 (de) * | 2012-12-04 | 2019-09-04 | BSH Hausgeräte GmbH | Kochfeldvorrichtung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885447A (en) * | 1985-01-23 | 1989-12-05 | Balay, S.A. | System for the induction heating of the electric plates of a cooker |
CH690891A5 (de) * | 1996-03-07 | 2001-02-15 | Thomann Electronics Ag | Heizleistungsregulierung für Induktionskochherd. |
DE102005021888A1 (de) * | 2005-05-04 | 2007-02-15 | E.G.O. Elektro-Gerätebau GmbH | Verfahren und Anordnung zur Leistungsversorgung mehrerer Induktionsspulen bei einem Induktionsgerät |
-
2010
- 2010-03-23 ES ES201030420A patent/ES2390688B1/es not_active Revoked
-
2011
- 2011-02-24 EP EP11704632.6A patent/EP2550841B1/de active Active
- 2011-02-24 WO PCT/EP2011/052752 patent/WO2011117041A2/de active Application Filing
- 2011-02-24 ES ES11704632.6T patent/ES2631428T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011117041A2 * |
Also Published As
Publication number | Publication date |
---|---|
ES2631428T3 (es) | 2017-08-31 |
EP2550841B1 (de) | 2017-05-10 |
WO2011117041A2 (de) | 2011-09-29 |
ES2390688B1 (es) | 2013-10-22 |
ES2390688A1 (es) | 2012-11-15 |
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