EP2100478A1 - Method for controlling induction heating devices in an electric cooking appliance - Google Patents
Method for controlling induction heating devices in an electric cooking applianceInfo
- Publication number
- EP2100478A1 EP2100478A1 EP07846987A EP07846987A EP2100478A1 EP 2100478 A1 EP2100478 A1 EP 2100478A1 EP 07846987 A EP07846987 A EP 07846987A EP 07846987 A EP07846987 A EP 07846987A EP 2100478 A1 EP2100478 A1 EP 2100478A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- induction heating
- induction
- outer conductor
- maximum
- 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
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
- 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 relates to a method according to the preamble of claim 1 for controlling induction heating of an electric kochös, such as in particular an induction hob.
- the invention is based on the object to provide an aforementioned method, can be avoided with the problems of the prior art and in particular an advantageous and useful way and resulting control of induction heating of the type mentioned can be created.
- the induction heating devices are connected to a supply connection with at least one outer conductor or the at least two induction heating devices are connected to the same outer conductor.
- This outer conductor has a maximum load that must not be exceeded at any time, since in particular a corresponding protection of the outer conductor or the supply connection via a fuse box exists.
- the induction heaters should be connected to a common outer conductor.
- a first induction heater is to be operated with a large desired power, in particular its maximum target power or a so-called boost power.
- boost line is used, especially when cooking or at the beginning of a cooking process, the induction heater for a short time, for example, up to 10 or 15 minutes to operate with power and then with a decrease to the normal maximum target power.
- a further or second induction heater is to be operated with a low nominal power, this lower target power is advantageously below the possible maximum normal or boost power of this second induction heater.
- the second induction heating device that is to say the one with the lower desired power, is operated with higher priority and with power as close as possible to the selected desired power.
- the other first induction heater is reduced so far in terms of their actual performance that the maximum power of the outer conductor is maintained at all times.
- the aforementioned large target power can be at least 90% of its maximum target power.
- the aforementioned low target power can also be at least 90% of their maximum target power, but is in total just lower than that of the large target power.
- the method is used when the second induction heater is connected to the outer conductor with a selected actual power up to a maximum of 50% of their maximum power. Then, the actual power of the first induction heater can be reduced, if doing the maximum load of the outer conductor would be exceeded, which is to be avoided in any case.
- the method in this embodiment of the invention can be carried out when the target power of the second induction heater is in the lower range or a small range. Especially here it is of great advantage, if immediately after connecting this second induction heater of the selected operation with the target power as the actual power.
- the first induction heater only relatively slightly in their actual power must be reduced in order to provide the power required for the second induction heater power reserve.
- the second induction heater can not be operated or only with very low actual power. This would certainly be distracting to an operator.
- the method is applied only in the case that a change in the actual power of the induction heating devices takes place when one of the two induction heating devices, preferably the aforementioned first induction heater, is operated with a boosting power.
- a boost power operation takes place for a momentarily excessive actual power, ie it is above the normal intended maximum actual power which this induction heater can perform permanently or in continuous operation.
- the induction heaters are operated with the power level, which is preset or selected by an operator, ie each with their target performance. In this case, it is generally assumed that the added up normal maximum continuous actual power of the two induction heaters is below the maximum load of the outer conductor.
- Such a boost power can be, for example, such that a short-term power increase can take place by more than 50%; in particular, for large induction heaters, a normal intended maximum continuous actual power can be approximately 2.3 KW and a boost power at 3.7 KW, so much higher.
- the duration of this boost power is advantageous in the above-mentioned 10 or 15 minutes.
- the maximum load is just this 3.7 KW. This would mean that when operating a large induction heater with boost power a second, connected to the same outer conductor induction heater could not be operated.
- the invention can also be applied to a single-conductor connection, ie if two or even more induction heating devices are connected to a single outer conductor of a single-phase supply connection.
- the second induction heater in particular if it has a smaller normal intended maximum sustained actual power, priority or priority has before the first induction heater with higher actual power.
- a power reduction by, for example, 10% at the higher actual power operated heater brings more for the smaller than the other way round.
- an operator various feedback or signals are given.
- a corresponding information is output to an operator.
- the first induction heater with the larger actual power or the above-described boost power is reduced in performance and this is displayed to an operator.
- Such a display or information display to an operator can be done by a special representation of the desired power or the actual power.
- An embodiment of the invention is shown schematically in the drawing and shows a hob with four burners and two power units, which are each connected to an outer conductor of a supply terminal. Detailed description of the embodiment
- a hob 11 is shown with four burners 12a to d.
- the hotplates 12a to d are each formed by induction heaters 13a to d and covered by a cooktop panel, not shown.
- the left two induction heaters 13a and 13b are powered by a left power part 15a which is connected to the outer conductor L1 and the return conductor N of a supply terminal.
- the two right induction heaters 13c and 13d are powered by a right power section 15b which is connected to the outer conductor L2 and the return conductor N at the same supply terminal.
- the power values of the induction heaters 13a to d are shown in FIG.
- the induction heaters 13a-d may generate a momentarily excessive power, namely, the power Psoost, particularly for cooking food. It will be appreciated that this boost power is significantly above normal power, sometimes greater by more than half, such as induction heater 13a.
- Such boosting powers are known to the person skilled in the art, in particular for induction heating devices.
- the two power units 15a and 15b contain power electronics, usually inverters or the like, for the respective induction heaters 13a to d. They are controlled by a controller 17.
- the controller 17 in turn is connected to an operating device 18, the controls 19 and lights 21, for example, seven-segment displays or simply lamps or LED has. Via the operating elements 19, an operator can make a power adjustment or change. On the lights 21 this is displayed optically.
- Tab. 1 and Tab. 2 it can be seen how the output heater 13a with the very high boost power Psoost and the induction heater 13b with the considerably lower normal power Pnormai looks like a power distribution. These two induction heaters are connected to the same power part 15a. In the table Tab. 2 this is shown for the induction heater 13c in Boost mode with P ⁇ oost and for the induction heater 13d in normal operation.
- a symbol for the selected boost power stage for example a specific number, can be displayed on the light indicators 21 and, on the other hand, another symbol or another number.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006058874A DE102006058874A1 (en) | 2006-12-06 | 2006-12-06 | Method for controlling induction heating devices in an electric cooking appliance |
PCT/EP2007/010540 WO2008067999A1 (en) | 2006-12-06 | 2007-12-05 | Method for controlling induction heating devices in an electric cooking appliance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2100478A1 true EP2100478A1 (en) | 2009-09-16 |
EP2100478B1 EP2100478B1 (en) | 2010-03-31 |
Family
ID=39313071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07846987A Revoked EP2100478B1 (en) | 2006-12-06 | 2007-12-05 | Method for controlling induction heating devices in an electric cooking appliance |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090250454A1 (en) |
EP (1) | EP2100478B1 (en) |
JP (1) | JP5263977B2 (en) |
AT (1) | ATE463143T1 (en) |
DE (2) | DE102006058874A1 (en) |
ES (1) | ES2343599T3 (en) |
WO (1) | WO2008067999A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3705782A1 (en) | 2019-03-06 | 2020-09-09 | E.G.O. Elektro-Gerätebau GmbH | Cooking hob and method for operating a cooking hob with multiple points |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2448370B1 (en) * | 2009-06-22 | 2014-04-02 | Panasonic Corporation | Cooking device, control method and programme for same |
EP2328384B1 (en) * | 2009-11-27 | 2017-03-15 | Electrolux Home Products Corporation N.V. | An induction hob and a method for controlling an induction hob |
FR2954661A1 (en) * | 2009-12-23 | 2011-06-24 | Jaeger | INDUCERS ON BALANCED PHASES |
FR2954886B1 (en) * | 2009-12-31 | 2012-01-20 | Fagorbrandt Sas | METHOD AND DEVICE FOR DETERMINING AN INDUCED CONTINUOUS MINIMUM POWER, IN PARTICULAR IN AN INDUCTION COOKING APPARATUS |
TR201102531A2 (en) * | 2011-03-16 | 2012-08-22 | En-Ko Elektroni̇k Kontrol Si̇stemleri̇ Sanayi̇ Ve Ti̇caret Li̇mited Şi̇rketi̇ | Intelligent power management in cooker control systems |
EP2506669B2 (en) * | 2011-03-29 | 2023-10-11 | BSH Hausgeräte GmbH | Switching device |
EP2506667B2 (en) * | 2011-03-29 | 2023-12-13 | BSH Hausgeräte GmbH | Induction heating device |
EP2692203B1 (en) * | 2011-03-30 | 2016-05-25 | BSH Hausgeräte GmbH | Induction heating device |
WO2012131571A1 (en) * | 2011-03-31 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Induction heating device |
ES2392612B1 (en) * | 2011-03-31 | 2013-10-22 | BSH Electrodomésticos España S.A. | Home appliance. |
ES2432235B1 (en) * | 2012-05-30 | 2014-11-04 | Bsh Electrodomésticos España, S.A. | Induction heating device |
EP2703728B2 (en) * | 2012-09-03 | 2023-11-08 | BSH Hausgeräte GmbH | Hotplate device |
DE102012215744A1 (en) * | 2012-09-05 | 2014-03-06 | E.G.O. Elektro-Gerätebau GmbH | Operating procedure for a hob and hob |
DE102013214927B4 (en) * | 2013-07-30 | 2016-12-29 | E.G.O. Elektro-Gerätebau GmbH | Method for operating a gas hob and gas hob |
ES2564849B1 (en) * | 2014-09-24 | 2017-01-12 | BSH Electrodomésticos España S.A. | Cooking Field Device |
EP3116288B1 (en) * | 2015-07-09 | 2020-05-13 | Electrolux Appliances Aktiebolag | Method for controlling an induction cooking hob including a number of induction coils |
ES2673693B1 (en) | 2016-12-23 | 2019-04-09 | Bsh Electrodomesticos Espana Sa | COOKING OVEN AND PROCEDURE FOR THE OPERATION OF A COOKING OVEN |
KR102133285B1 (en) * | 2017-12-04 | 2020-07-13 | 엘지전자 주식회사 | Cooking device |
ES2719650A1 (en) * | 2018-01-08 | 2019-07-11 | Bsh Electrodomesticos Espana Sa | COOKING FIELD DEVICE (Machine-translation by Google Translate, not legally binding) |
US11041622B2 (en) * | 2019-01-04 | 2021-06-22 | Haier Us Appliance Solutions, Inc. | Gas cooktop with power management |
EP4170241A1 (en) * | 2021-10-25 | 2023-04-26 | Electrolux Appliances Aktiebolag | Control device for a hob and hob with a control device |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500870A (en) * | 1981-09-29 | 1985-02-19 | Eotec Corporation | Method and components for remote reading of utility meters |
US4564733A (en) * | 1983-08-11 | 1986-01-14 | Whirlpool Corporation | Current limiting control circuit for induction range |
JP2586458B2 (en) * | 1986-08-29 | 1997-02-26 | ソニー株式会社 | Electromagnetic cooker |
JPH02270291A (en) * | 1989-04-10 | 1990-11-05 | Matsushita Electric Ind Co Ltd | Heat cooking appliance |
DE4038560A1 (en) * | 1990-12-04 | 1992-06-11 | Licentia Gmbh | Power control of microwave and induction heating cooker - involves microprocessor limiting load on inverter by switching of microwave oscillator and regulation of induction energy |
JPH05326124A (en) * | 1992-01-10 | 1993-12-10 | Hitachi Home Tec Ltd | Induction heatiang cooker |
JP3054840B2 (en) * | 1993-03-22 | 2000-06-19 | 松下電器産業株式会社 | Multi-port induction heating cooker |
ES2128958B1 (en) * | 1996-11-21 | 2000-01-16 | Balay Sa | POWER CONTROL PROCEDURE IN POWERED INDUCTION COOKERS THROUGH RECONFIGURABLE INVERTERS. |
DE29701430U1 (en) * | 1997-01-29 | 1998-03-05 | Atag Kitchen Group Bv | Device for limiting the power of two hotplates in an induction hob |
DE19859105A1 (en) * | 1998-12-21 | 2000-06-29 | Ego Elektro Geraetebau Gmbh | Arrangement for controlling electrically controllable devices, in particular electric cooking devices |
DE19900185A1 (en) * | 1999-01-07 | 2000-07-13 | Ego Elektro Geraetebau Gmbh | Method and device for switching consumers of an electrical device |
US20020190057A1 (en) * | 2001-06-19 | 2002-12-19 | Bsh Home Appliances Corporation | Cooktop control |
DE10212929A1 (en) * | 2002-03-19 | 2003-10-02 | Ego Elektro Geraetebau Gmbh | Control device for an electrical device |
ES2211303B1 (en) * | 2002-08-01 | 2005-10-01 | Bsh Electrodomesticos España, S.A. | INDUCTION KITCHEN PLATE WITH RECONFIGURABLE STRUCTURE WARMING AREAS AND PROCEDURE TO INCREASE THE MAXIMUM POWER OF SUCH WARMING ZONES. |
US6967314B2 (en) * | 2003-06-26 | 2005-11-22 | Maytag Corporation | Programmable power level control for a cooking appliance |
CH696649A5 (en) * | 2003-06-30 | 2007-08-31 | Elatronic Ag | Method and apparatus for power control of induction cookers. |
US7355150B2 (en) * | 2006-03-23 | 2008-04-08 | Access Business Group International Llc | Food preparation system with inductive power |
-
2006
- 2006-12-06 DE DE102006058874A patent/DE102006058874A1/en active Pending
-
2007
- 2007-12-05 DE DE502007003364T patent/DE502007003364D1/en active Active
- 2007-12-05 ES ES07846987T patent/ES2343599T3/en active Active
- 2007-12-05 JP JP2009539658A patent/JP5263977B2/en not_active Expired - Fee Related
- 2007-12-05 WO PCT/EP2007/010540 patent/WO2008067999A1/en active Application Filing
- 2007-12-05 EP EP07846987A patent/EP2100478B1/en not_active Revoked
- 2007-12-05 AT AT07846987T patent/ATE463143T1/en active
-
2009
- 2009-06-04 US US12/478,206 patent/US20090250454A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008067999A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3705782A1 (en) | 2019-03-06 | 2020-09-09 | E.G.O. Elektro-Gerätebau GmbH | Cooking hob and method for operating a cooking hob with multiple points |
Also Published As
Publication number | Publication date |
---|---|
ES2343599T3 (en) | 2010-08-04 |
JP2010511981A (en) | 2010-04-15 |
JP5263977B2 (en) | 2013-08-14 |
US20090250454A1 (en) | 2009-10-08 |
WO2008067999A1 (en) | 2008-06-12 |
EP2100478B1 (en) | 2010-03-31 |
DE102006058874A1 (en) | 2008-06-19 |
DE502007003364D1 (en) | 2010-05-12 |
ATE463143T1 (en) | 2010-04-15 |
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