Cooker Heat Source Control for Faster Heating Without Burning
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Solution Overview
Problem
Conventional cookers are inefficient in quickly heating foods, as they often require prolonged heating times and lack optimal control over multiple heat sources.
Innovation Solution
A cooker system with a first heat source and multiple second heat sources, where the first heat source is driven at a maximum level until a preset reference temperature is reached, and the second heat sources are sequentially driven at different preset levels for specific times to maintain and adjust the cooking chamber temperature efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a single heat source is used to heat food, then the device complexity is low, but the heating speed is slow
Solution Approach 1:
The patent combines multiple heat sources (first heat source and plurality of second heat sources) within a single cooker system to achieve faster heating speeds. The heat sources work simultaneously or sequentially to rapidly heat the cooking chamber and food, resolving the contradiction between heating speed and device complexity by merging multiple heating elements into one integrated system.
Solution Approach 2:
The patent segments the heating function into multiple independent heat sources, each capable of being controlled at different driving levels. This segmentation allows the system to achieve rapid heating through coordinated operation of multiple sources while maintaining manageable complexity through modular control of each segment.
2Speed
If multiple heat sources are operated at maximum power simultaneously, then the heating speed is fast, but the risk of burning food increases
Solution Approach 1:
The patent implements dynamic control of heat sources through multiple driving levels (first through tenth levels) that can be adjusted based on cooking requirements. The controller can operate heat sources at different power levels simultaneously or sequentially, enabling fast heating when needed while reducing power to prevent burning, thus dynamically balancing heating speed and burning risk.
Solution Approach 2:
The patent changes the operating parameters of heat sources by providing multiple discrete driving levels corresponding to different temperature outputs. This parameter adjustment capability allows the system to optimize heating intensity according to the specific cooking stage and food type, achieving rapid heating without excessive temperature that would cause burning.
3Productivity
If the cooking chamber temperature is rapidly increased to reduce cooking time, then the productivity is high, but the temperature control precision becomes difficult
Solution Approach 1:
The patent incorporates a temperature sensor that continuously monitors the cooking chamber temperature and provides feedback to the controller. The controller uses this feedback information to adjust the driving levels of heat sources in real-time, maintaining precise temperature control even during rapid heating phases, thus achieving both high productivity and accurate temperature management.
Solution Approach 2:
The patent employs periodic adjustment of heat source operation through multiple driving levels and preset cooking programs. The system can cycle through different heating intensities and maintain temperatures within optimal ranges through periodic control actions, ensuring both efficient cooking and precise temperature management.
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 approach allows for faster and more efficient cooking of foods, preventing burning and enabling convenient operation by optimizing the use of various heat sources.
Implementation Method 1
heat sources including heaters for radiation and convective heating
Implementation Method 2
heat sources including heaters for radiation and convective heating
Implementation Method 3
magnetrons for generation of microwaves
Implementation Method 4
magnetrons for generation of microwaves
Data Source
AI summary
Provided are a cooker and a method for controlling the same. Levels driven by a plurality of heat sources are controlled by input driving levels of all the heat sources received by an input unit. Accordingly, there is an advantage in that foods are more swiftly cooked by the plurality of heat sources.