Induction Cooktop Controller with Dynamic Heating Modes
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Solution Overview
Problem
Existing cooktops, particularly induction cooktops, lack advanced control mechanisms to precisely manage cooking temperatures and prevent overheating, leading to inefficiencies and safety concerns.
Innovation Solution
The development of a cooktop appliance with a controller that uses heating control modes to achieve set temperatures, incorporating temperature sensors and a user interface for inputting operating parameters, and featuring safety circuits to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a simple heating control mechanism is used, then the device complexity is reduced, but the temperature control precision deteriorates
Solution Approach 1:
The patent implements dynamic heating control modes (rapid heating, gentle heating, staged heating) that adapt to different cooking requirements and temperature ranges. The controller dynamically selects and switches between multiple heating modes based on real-time temperature feedback and user preferences, enabling precise temperature control without requiring an overly complex fixed mechanism.
Solution Approach 2:
The heating control system is segmented into distinct functional modes (rapid heating mode, gentle heating mode, staged heating mode) and temperature ranges. Each mode employs specific control strategies tailored to its purpose, allowing the system to achieve high precision in each segment while keeping individual mode complexity manageable.
2Productivity
If advanced heating control modes are implemented, then cooking efficiency is improved, but the device complexity increases
Solution Approach 1:
The staged heating mode employs periodic action by cycling through different heating power levels in predetermined sequences. The controller applies heating at specific intervals and durations, allowing efficient cooking through rhythmic heating cycles that optimize energy transfer and cooking speed without requiring continuously complex control logic.
Solution Approach 2:
The system achieves cooking efficiency through parameter changes by adjusting heating power levels, temperature thresholds, and timing parameters across different heating modes. The controller modifies operational parameters (power, time, temperature targets) to optimize cooking performance for each mode while maintaining a relatively simple base control architecture.
3Reliability
If overheating protection mechanisms are added, then safety is improved, but the device complexity increases
Solution Approach 1:
The patent incorporates feedback-based overheating protection where temperature sensors continuously monitor heating elements and cooking surfaces. The controller receives real-time temperature feedback and automatically adjusts or terminates heating when predetermined safety thresholds are approached, providing robust safety protection through intelligent feedback loops rather than simple mechanical cutoffs.
Solution Approach 2:
The system implements beforehand cushioning by setting predetermined safety temperature thresholds and protection mechanisms before overheating can occur. The controller proactively monitors temperature trends and prepares to intervene before dangerous conditions develop, cushioning against potential safety failures through advance protective measures.
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 precise control over cooking temperatures, reduces the risk of overheating, and improves cooking efficiency by allowing for customizable heating profiles and safety features.
Implementation Method 1
a heating system for heating a cooking vessel containing a food substance
Implementation Method 2
a temperature sensor adapted to measure a temperature associated with the cooking vessel
Implementation Method 3
the controller controls operation of the heating system based on one or more heating control modes and the set temperature
Data Source
AI summary
A cooktop appliance apparatus for use in cooking includes a controller for controlling operation of the fan system based on an average power level supplied to a heating system, and based on a temperature measure associated with one or more subsystems. The appliance includes a hardware-implemented safety module having two or more temperature actuated safety circuits. The appliance includes a user interface adapted to receive a user input with respect to operating parameters of the heating system, the user input including a heating control mode and a set temperature. The appliance includes a controller adapted to identify a cooking vessel on an induction cooktop.