Induction Cooktop Coded Energy Transfer for Vessel Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing induction cooktops fail to reliably detect and identify cooking vessels placed on heating zones, limiting their ability to efficiently transfer energy and monitor cooking processes.
Innovation Solution
The method involves using induction heating coils with unique energy transfer codes, a transmit device on the cooking vessel, and a receive means on the cooktop or external unit to identify the vessel by decoding energy patterns, allowing precise association of vessels with heating zones and enabling efficient energy transfer and cooking process monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional pan detection sensors are used, then the system can detect the presence of a cooking vessel, but it cannot reliably identify the specific vessel or determine its optimal cooking parameters
Solution Approach 1:
The patent replaces conventional capacitive sensors with a communication-based detection system. The cooking vessel contains a communication circuit that transmits identification data to the control unit via electromagnetic communication, eliminating the need for complex sensor arrays and enabling reliable vessel identification without increasing mechanical complexity
Solution Approach 2:
The patent introduces a communication circuit as an intermediary between the cooking vessel and the control unit. This communication circuit transmits vessel identification data and receives control signals, serving as a mediator that enables precise vessel identification and optimal cooking parameter determination without requiring direct complex interaction between the control unit and vessel
2Productivity
If multiple induction heating coils operate simultaneously, then the heating capacity increases, but the noise generation and energy loss increase
Solution Approach 1:
The patent implements periodic activation of induction heating coils based on real-time detection of cooking vessel presence and communication data. Instead of continuous operation, coils are activated only when needed and for optimized durations, reducing energy loss while maintaining high heating capacity when vessels are present
Solution Approach 2:
The patent establishes a feedback loop where the control unit continuously receives communication data from cooking vessels, monitors cooking progress, and adjusts induction heating coil activation accordingly. This feedback mechanism enables optimized energy distribution across multiple coils, maintaining high productivity while minimizing energy loss through intelligent control
3Reliability
If coded energy transfer patterns are used for vessel identification, then the identification reliability improves, but the detection time and processing complexity increase
Solution Approach 1:
The patent implements preliminary action by having cooking vessels pre-configured with communication circuits containing identification data before placement on the cooktop. When a vessel is placed, the control unit immediately receives identification data through electromagnetic communication, enabling instant vessel recognition and eliminating detection delays
Solution Approach 2:
The patent replaces time-consuming coded energy transfer patterns with direct electromagnetic communication. The communication circuit in the cooking vessel transmits identification data directly to the control unit through electromagnetic fields, achieving reliable vessel identification instantaneously without requiring complex coded energy transfer and analysis
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
This solution enables reliable detection and identification of cooking vessels, optimizing energy transfer and cooking process monitoring, reducing noise and improving operational efficiency by using coded energy patterns to associate vessels with specific heating coils.
Implementation Method 1
Each induction heating coil is designed to transfer energy for heating a cooking vessel in the heating zone
Implementation Method 2
induction heating coil which is designed to transfer energy for heating a cooking vessel
Implementation Method 3
transfer energy for heating a cooking vessel
Data Source
AI summary
In order to detect on an induction cooktop whether a cooking vessel with an integrated controller or smart functionality is arranged over an induction heating coil, the induction heating coils emit a short individual code. The latter can be detected and evaluated by the cooking vessel such that the cooking vessel emits a signal corresponding to this code which is received by an external operating means or the induction cooktop to locally associate this cooking vessel with this induction heating coil. Transmission or transfer of energy as a code proceeds at a frequency of at least 50 kHz, wherein a code has a plurality of pulse sequences, each of which has at least two pulses.