Induction hob and a method for controlling an induction hob
First Claim
Patent Images
1. An induction hob comprising:
- a cooking surface (10);
a number of induction coils (12;
16;
18), wherein the induction coils (12;
16;
18) are arranged on the cooking surface (10) according to a predetermined scheme, wherein at least two of the induction coils (12;
16;
18) can be covered by a cooking vessel (14),each induction coil (12;
16;
18) is connected to at least one induction generator configured to be switched between a high power and a low power, wherein the low power is between 10% and 20% of the high power,each induction generator is separately controllable, wherein each of the induction coils (12;
16;
18) is configured to be separately switched between the high power and the low power, andat least one control unit is provided for controlling each of the induction generators by switching each of the induction coils (12;
16;
18) between a high power and a low power according to a predetermined time pattern, wherein the power received by the cooking vessel (14) is controlled by switching each of the induction coils (12;
16;
18) below the cooking vessel (14) between the high power and the low power depending on the required power under the cooking vessel (14) such that at least one of the induction coils (12;
16;
18) below the cooking vessel (14) operates at the high power during a cooking period at the same time as at least one of the induction coils (12;
16;
18) operates at the low power.
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Accused Products
Abstract
The present invention relates to an induction hob with a cooking surface (10) and a number of induction coils (12; 16, 18) within said cooking surface (10). The induction coils (12; 16, 18) are arranged on the cooking surface (10) according to predetermined scheme, so that at least two induction coils (12; 16, 18) can be covered by a standard cooking vessel (14). Each induction coil (12; 16, 18) is connected to at least one induction generator being switched or switchable between a high power and a low power. Each induction generator is separately controllable, so that the induction coils (12; 16, 18) are switched or switchable between the high power and the low power. At least one control unit is provided for controlling the individual induction coils (12; 16, 18) according to a predetermined time pattern. Further, the present invention relates to a corresponding method for controlling the induction hob.
27 Citations
12 Claims
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1. An induction hob comprising:
-
a cooking surface (10); a number of induction coils (12;
16;
18), wherein the induction coils (12;
16;
18) are arranged on the cooking surface (10) according to a predetermined scheme, wherein at least two of the induction coils (12;
16;
18) can be covered by a cooking vessel (14),each induction coil (12;
16;
18) is connected to at least one induction generator configured to be switched between a high power and a low power, wherein the low power is between 10% and 20% of the high power,each induction generator is separately controllable, wherein each of the induction coils (12;
16;
18) is configured to be separately switched between the high power and the low power, andat least one control unit is provided for controlling each of the induction generators by switching each of the induction coils (12;
16;
18) between a high power and a low power according to a predetermined time pattern, wherein the power received by the cooking vessel (14) is controlled by switching each of the induction coils (12;
16;
18) below the cooking vessel (14) between the high power and the low power depending on the required power under the cooking vessel (14) such that at least one of the induction coils (12;
16;
18) below the cooking vessel (14) operates at the high power during a cooking period at the same time as at least one of the induction coils (12;
16;
18) operates at the low power. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling an induction hob including a cooking surface (10) and a number of induction coils (12;
-
16;
18), comprising the steps of;arranging induction coils (12;
16;
18) on the cooking surface (10) according to a predetermined scheme, wherein at least two of the induction coils (12;
16;
18) can be completely or partially covered by a cooking vessel (14),connecting each of the induction coils (12;
16;
18) to at least one induction generator configured to be switched between a high power and a low power, wherein the low power is between 10% and 20% of the high power,controlling separately each induction generator, wherein each of the induction coils (12;
16;
18) is configured to be separately switched between the high power and the low power,switching separately each of the induction coils (12;
16;
18) between the high power and the low power according to a predetermined time pattern,wherein the power received by the cooking vessel (14) is controlled by switching each of the induction coils (12;
16;
18) below the cooking vessel (14) between the high power and the low power depending on the required power under the cooking vessel (14) such that at least one of the induction coils (12;
16;
18) below the cooking vessel (14) operates at the high power during a cooking period at the same time as at least one of the induction coils operates at the low power. - View Dependent Claims (8, 9, 10, 11)
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16;
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12. A method for controlling an induction hob including a cooking surface (10) and a number of induction coils (12;
-
16;
18), comprising the steps of;arranging induction coils (12;
16;
18) on the cooking surface (10) according to a predetermined scheme, wherein at least two of the induction coils (12;
16;
18) can be covered completely or partially by a cooking vessel (14),connecting each of the induction coils (12;
16;
18) to at least one induction generator configured to be switched between a high power and a low power, wherein the low power is between 10% and 20% of the high power,controlling separately each induction generator, wherein each of the induction coils (12;
16;
18) is switched separately between the high power and the low power,dividing a cooking period into a plurality of identical time cycles, each of said identical cooking cycles comprising a number of time intervals equal to the number of the induction coils (12;
16;
18) below the cooking vessel (14),controlling the power received by the cooking vessel (14) by rotating the number of the induction coils (12;
16;
18) that are activated and deactivated under the cooking vessel (14) during each of the time intervals depending on the required power under the cooking vessel (14), such that each of the induction coils (12;
16;
18) is activated and deactivated for an equal number of time intervals during the cooking period,wherein each of the induction coils (12;
16;
18) below the cooking vessel (14) is activated when switched at the high power and each of the induction coils (12;
16;
18) below the cooking vessel (14) is deactivated when switched at the low power.
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16;
Specification
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Current AssigneeElectrolux Home Products Incorporated (AB Electrolux)
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Original AssigneeElectrolux Home Products Incorporated (AB Electrolux)
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InventorsJeanneteau, Laurent, Rigolle, Thibaut, Zangoli, Massimo, Christiansen, Svend Erik
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Primary Examiner(s)Angwin, David
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Assistant Examiner(s)Bae, Gyounghyun
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Application NumberUS13/496,273Publication NumberTime in Patent Office2,406 DaysField of Search219622US Class CurrentCPC Class CodesH05B 2213/03 Heating plates made out of ...H05B 6/065 using coordinated control o...
