Induction Heating for Consistent Cooking Across Materials
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Summary
Problems
Induction cooking equipment faces issues with uneven heating and poor temperature control due to the use of heating plates, which do not account for the varying resistivity of different material types of cooking vessels, leading to inconsistent heating results.
Innovation solutions
A method and device that determine the material type of a cooking vessel and select a voltage change curve matching its resistivity to ensure consistent heating power, using barcode identification, electronic labels, or physical structure detection to adjust the voltage accordingly.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a heating plate is used for heating, then the structure is simple and control is easy, but the heating uniformity and temperature control accuracy deteriorate
Why choose this principle:
The patent changes the heating method from conventional resistive heating to induction heating, fundamentally altering the physical parameter of heat generation. Induction heating uses electromagnetic fields to directly induce eddy currents in the cookware, generating heat within the cookware itself rather than through a heating plate, thereby achieving superior temperature control accuracy and heating uniformity while maintaining structural simplicity
Principle concept:
If a heating plate is used for heating, then the structure is simple and control is easy, but the heating uniformity and temperature control accuracy deteriorate
Why choose this principle:
The patent replaces the mechanical thermal conduction system (heating plate transferring heat to cookware) with an electromagnetic field system. The induction coil generates a time-varying magnetic field that directly induces currents in the cookware, eliminating the need for direct thermal contact and improving both temperature control precision and heating uniformity
Application Domain
Data Source
AI summary:
A method and device that determine the material type of a cooking vessel and select a voltage change curve matching its resistivity to ensure consistent heating power, using barcode identification, electronic labels, or physical structure detection to adjust the voltage accordingly.
Abstract
The present invention relates to a method, device and electronic device for heating a tank of an induction cooking equipment. The method may comprise: determining (502) a material type of a tank; and selecting (504) a voltage change curve matching with the material type for use in a cooking process of the induction cooking equipment which the tank belongs to.