Method for detecting the presence of a cooking vessel on an induction cooking hob and hob using such method
First Claim
1. A method for detecting the presence of a cooking utensil on an induction heating element placed below an insulating surface, comprising the steps of:
- detecting whether the cooking utensil is placed on the induction heating element by measuring capacitance via a sensor placed below the insulating surface, the sensor is connected to a control board, wherein the sensor is a single conductive electrode configured to measure an electrical parameter and relay the electrical parameter to the control board, and wherein a galvanic insulated temperature sensor is supported by the conductive electrode;
assessing the electrical parameter;
indicating whether the cooking utensil is present on the induction heating element; and
activating the indicated induction heating element by feeding power to the indicated induction heating element.
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Accused Products
Abstract
A method for detecting the presence of a cooking vessel on an induction heating element is disclosed. The induction element is placed below a glass surface and a conductive electrode placed below the glass surface to detect if a cooking utensil is placed on the induction heating element. The electrode measures capacitance, which indicates to the user whether the cooking utensil is present on one or more induction heating elements. After activation by a user, a second detection of the cooking utensil is accomplished by feeding power to the induction heating element and by assessing at least an electrical parameter of a power circuit thereof.
7 Citations
17 Claims
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1. A method for detecting the presence of a cooking utensil on an induction heating element placed below an insulating surface, comprising the steps of:
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detecting whether the cooking utensil is placed on the induction heating element by measuring capacitance via a sensor placed below the insulating surface, the sensor is connected to a control board, wherein the sensor is a single conductive electrode configured to measure an electrical parameter and relay the electrical parameter to the control board, and wherein a galvanic insulated temperature sensor is supported by the conductive electrode; assessing the electrical parameter; indicating whether the cooking utensil is present on the induction heating element; and activating the indicated induction heating element by feeding power to the indicated induction heating element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An induction cooking hob comprising:
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an insulating surface; and an induction heating element configured below the insulating surface, having a sensor, wherein the sensor is a single conductive electrode, the single conductive electrode is configured substantially centrally within the induction heating element and connected to an electronic unit for detecting the presence of a cooking utensil without activating the induction heating element, wherein a galvanic insulated temperature sensor is supported by the conductive electrode. - View Dependent Claims (12)
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13. An induction cooking hob comprising:
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an insulating surface; at least one induction heating element placed below the insulating surface, having a conductive electrode; and an electronic unit connected to a control board, wherein the conductive electrode is substantially centrally placed within the at least one induction heating element and configured to measure an electrical parameter and relay the electrical parameter to the control board without activating the at least one induction heating element, and wherein a galvanic insulated temperature sensor is supported by the conductive electrode. - View Dependent Claims (14, 15, 16, 17)
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Specification