Cooktop
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Solution Overview
Problem
Current cooktops, including induction cooktops, lack precise control over cooking temperatures and often result in over-cooking due to limited temperature control options, and safety features like fuses can lead to unnecessary shutdowns below desired cooking temperatures.
Innovation Solution
A cooktop system with a controller that uses temperature sensors and user inputs to manage heating modes, power ranges, and fan control for precise temperature control and safety, including dual safety circuits for overheating prevention and pot detection methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional heating control mechanisms are used, then the cooktop can reach cooking temperatures, but precise temperature control is lacking and over-cooking occurs
Solution Approach 1:
The system dynamically adjusts the heating power based on real-time temperature feedback from the sensor. The controller continuously monitors the cooking vessel temperature and modulates the heating element power output to maintain the desired temperature, enabling precise temperature control and preventing over-cooking.
Solution Approach 2:
A temperature sensor provides continuous feedback about the cooking vessel temperature to the controller. This feedback loop allows the system to detect temperature changes and adjust heating power accordingly, achieving accurate temperature control and preventing both under-heating and over-cooking.
2Reliability
If safety fuses are used to prevent overheating, then overheating protection is provided, but unnecessary shutdowns occur below desired cooking temperatures
Solution Approach 1:
The temperature sensor provides continuous feedback to the controller, enabling real-time monitoring of cooking vessel temperature. This allows the system to distinguish between normal operating temperatures and actual overheating conditions, preventing unnecessary shutdowns while maintaining proper overheating protection.
Solution Approach 2:
The system uses multiple temperature thresholds to differentiate between normal cooking temperatures and dangerous overheating conditions. By adjusting the control parameters based on feedback, the system allows continuous operation at cooking temperatures while shutting down only when actual overheating is detected.
3Ease of operation
If limited temperature control options are provided, then the heating system is simple to control, but precise temperature control for various cooking styles is not achieved
Solution Approach 1:
The system provides dynamic temperature control where the heating power automatically adjusts based on real-time temperature feedback. This enables the cooktop to adapt to various cooking styles and temperature requirements without requiring complex manual control, maintaining simplicity while achieving versatility.
Solution Approach 2:
The temperature sensor and controller work together to automatically regulate the heating temperature based on the cooking vessel temperature. This self-regulating capability allows the system to adapt to different cooking requirements without user intervention, providing both simplicity and versatility.
4Speed
If rapid heating is applied to reach cooking temperatures quickly, then heating speed is improved, but temperature overshoot occurs
Solution Approach 1:
The system dynamically adjusts heating power based on real-time temperature feedback. During the heating phase, high power is applied for rapid heating, but as the target temperature approaches, the controller automatically reduces power to prevent overshoot, achieving both fast heating and accurate temperature control.
Solution Approach 2:
The controller uses periodic temperature measurements and adjusts heating power in cycles. This periodic control allows rapid heating when temperature is low, then smoothly transitions to maintenance mode near the target temperature, preventing overshoot while maintaining heating speed.
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 precise temperature control for various cooking styles and prevents overheating, ensuring safe operation and accurate detection of cooking vessels, thereby improving cooking outcomes and safety.
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
Data Source
AI summary
A cooktop appliance apparatus for use in cooking. The appliance including 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 the one or more subsystems. The appliance including a hardware-implemented safety module comprising two or more temperature actuated safety circuits. The appliance including 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 including a controller adapted to identify a cooking vessel on an induction cooktop.