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US 8,569,666 B2Granted
Method for detecting the pan size in induction cooking hobs and induction cooking hob for carrying out such method
AssigneeWhirlpool Corporation
InventorsDiego Neftali Gutierrez, Fabrizio Dughiero
Life of this patent
Estimating the term…
Abstract
A method for detecting the pan size and/or position in induction cooking hobs comprises providing at least a sensing circuit associated to a magnetic field concentrator, particularly a ferrite bar, and assessing an electrical parameter thereof correlated to the variation of the magnetic flux.
Claims17
A method for allocating power in induction cooking hobs having two or more laterally spaced, non-overlapping induction coils associated with a heating area for heating separate areas on a bottom surface of a cooking vessel, the method comprising:
- sensing and assessing electrical parameters of sensing circuits associated with respective ones of the induction coils correlated to variation of magnetic flux;
- and
- allocating power to the two or more induction coils based on the electrical parameters of the sensing circuits to balance heat provided to the bottom surface of the cooking vessel in order to minimize a temperature difference between the separate areas.
An induction cooking hob comprising:
- two or more laterally spaced, non-overlapping induction coils associated with a heating area for heating separate areas on a bottom surface of a cooking vessel;
- and
- a control circuit having sensing circuits for respective ones of the induction coils connected to the control circuit to provide electrical parameters correlated to variation of magnetic flux, the control circuit being configured to allocate power to the two or more induction coils based on the electrical parameters of the sensing circuits to balance heat provided to the bottom surface of the cooking vessel in order to minimize a temperature difference between the separate areas.
Dependencies are inferred from the claim text.