A cooking vessel for an induction cooktop
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Solution Overview
Problem
Induction cooktops often result in food spilling over or over-cooking due to excessive heat, requiring manual intervention to manage temperature and prevent boiling over, as existing solutions focus solely on heat and temperature control without addressing the specific needs of different food ingredients.
Innovation Solution
A cooking vessel with a movable magnetic base plate that transfers heat from the induction cooktop, a non-magnetic base plate to block heat transfer, and an actuator that displaces the magnetic base plate to an insulation pocket based on control signals from level and temperature sensors, preventing excessive heat and incorporating a stirring mechanism to prevent sticking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous heat is supplied by the induction cooktop, then cooking efficiency is improved, but food contents spill over or boil over due to excessive heat
Solution Approach 1:
The patent applies a movable magnetic base plate that can dynamically change position between a heat conducting zone (for active heating) and an insulation pocket (for heat isolation). This dynamic reconfiguration allows the system to switch between high-efficiency cooking and spill-prevention modes, resolving the contradiction between continuous heat supply and preventing boil-over
Solution Approach 2:
The magnetic base plate acts as an intermediary element between the induction cooktop and the food contents. By moving this intermediate component, the system can control heat transfer without directly manipulating the food, enabling automatic spill prevention while maintaining cooking efficiency
2Loss of time
If high heat is supplied to cook food quickly, then cooking time is reduced, but food contents get over-cooked or burnt
Solution Approach 1:
The system implements periodic action by alternately positioning the magnetic base plate between the heat conducting zone and the insulation pocket. This periodic movement allows cycles of intense heating followed by heat isolation, enabling fast cooking while preventing overheating and burning of food contents
3Object-affected harmful factors
If manual intervention is used to monitor and control heat, then food spill over is prevented, but ease of operation deteriorates due to constant attention required
Solution Approach 1:
The cooking vessel is equipped with sensors (level sensor, temperature sensor) that automatically monitor the cooking state and trigger the actuator to move the magnetic base plate. This self-service mechanism eliminates the need for manual intervention while maintaining effective spill prevention and heat control
4Stability of the object's composition
If heat is continuously supplied to maintain cooking temperature, then cooking consistency is improved, but energy wastage increases due to no manual turn-off
Solution Approach 1:
The system uses temperature sensors and level sensors to provide continuous feedback about the cooking state. Based on this feedback, the actuator automatically adjusts the magnetic base plate position to maintain optimal cooking temperature while preventing energy wastage through automatic heat isolation when cooking is complete or spill risk is detected
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
Automatically prevents food from boiling over and sticking by controlling heat supply and incorporating a stirring function, reducing the need for manual intervention and ensuring safe cooking without spillover.
Implementation Method 1
the movable magnetic material base plate transfers heat from the induction cooktop to contents in the cooking vessel
Implementation Method 2
The induction cooktop heats a cooking vessel by magnetic induction instead of thermal conduction
Implementation Method 3
The cooking vessel detects when food contents present in the cooking vessel are being boiled and reach a predetermined level in the cooking vessel
Implementation Method 4
the non-magnetic material base plate blocks transfer of heat from the induction cooktop to the contents
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
The present disclosure relates to a cooking vessel for induction cooktops. The cooking vessel comprises at least one movable magnetic material base plate provided at heat conducting zone of the cooking vessel, wherein the movable magnetic material base plate transfers heat from the induction cooktop to contents in the cooking vessel. The cooking vessel further comprises at least one non-magnetic material base plate, placed adjacent to the at least one movable magnetic material base plate, wherein the non-magnetic material base plate blocks transfer of heat from induction cooktop to the contents. Further, an insulation pocket, placed adjacent to the at least one movable magnetic material base plate, is configured to house the at least one movable magnetic material base plate. Furthermore, an actuator is configured to displace the at least one movable magnetic material base plate from the heat conducting zone to the insulation pocket based on a control signal.