Induction Hob Automatic Power Interpolation Control
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Solution Overview
Problem
Conventional induction hobs lack customization options, making them uncomfortable and slow to use for users accustomed to traditional cookers, as they require manual selection of cooking zones and power levels, which is not compatible with the ease and immediacy needed by most users.
Innovation Solution
An induction hob with a control unit that automatically selects power levels for intermediate cooking zones through interpolation between manually selected outer zones, allowing for easy and dynamic cooking zone handling, similar to traditional cookers, by using a predefined interpolating function such as a linear, monotonically increasing or decreasing function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual selection of cooking zones and power levels is implemented, then customization capability is improved, but ease of operation deteriorates due to multiple manual steps required
Solution Approach 1:
The system automatically detects pan presence and selects appropriate cooking zones and power levels without requiring manual user intervention. The control unit autonomously configures the cooking setup based on detected pan characteristics, making the system serve itself rather than requiring user configuration.
Solution Approach 2:
The system uses pan detection feedback to automatically adjust cooking zone selection and power level settings. By continuously monitoring pan presence and characteristics, the control unit dynamically configures optimal cooking parameters, creating a closed-loop system that adapts to user needs without manual input.
2Ease of operation
If automatic pan detection is used for layout setting, then ease of operation is improved, but customization capability deteriorates due to lack of manual control
Solution Approach 1:
The system dynamically switches between automatic and manual modes based on user needs. In automatic mode, pan detection drives zone selection for ease of use. In manual mode, users can override automatic selections for customization. This dynamic adaptability allows the same system to serve both automated and customized cooking preferences.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic cooking zone selection without user intervention, providing pre-set power levels for immediate induction heating, enhancing the ease of use and meeting the classic cooking needs of many users by allowing customizable and quick adjustments.
Implementation Method 1
an alternating electric current is allowed to flow through the respective coil(s), thus generating an oscillating magnetic field. According to well known physical principles, such magnetic field induces an eddy current in the pan, which in turns produces (by Joule effect) resistive heating thereof
Implementation Method 2
such magnetic field induces an eddy current in the pan, which in turns produces (by Joule effect) resistive heating thereof and hence of the food contained therein
Data Source
AI summary
An induction hob (100) includes a solid plate (105), and a plurality of electrically activatable coil members (1101-1108) arranged underneath the plate. The define corresponding cooking zones (1151-1158) of the induction hob, and a control unit (135) is configured to select power levels for the cooking zones. Upon selection of first (P1) and second (P6) power levels for non-adjacent first (1151) and second (1156) cooking zones, respectively, the control unit is configured to automatically select for each intermediate cooking zone (1152-1155) between the first and second cooking zones a corresponding power level (P2-P5) obtained by interpolation of the first and second power levels with a predefined interpolating function.