Induction Cooking Power Control After Boil Detection
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Solution Overview
Problem
Existing cooking technologies fail to efficiently control power supply in induction heating systems, leading to excessive energy use and rapid vaporization of water, as they either reduce power too soon after boil detection or maintain high power levels unnecessarily, causing inefficiencies in cooking time and energy expenditure.
Innovation Solution
A control system that detects boiling, alerts the user, maintains high power for a short period to re-boil water after food insertion, and then reduces power to a predetermined level to conserve energy and prevent extreme vaporization, while allowing for flexible adjustments and compatibility with various cooking appliances and energy sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power is reduced immediately after boiling detection, then energy consumption is reduced, but boiling conditions deteriorate due to food insertion and time is lost for water to boil again
Solution Approach 1:
The system performs preliminary action by maintaining high power level for a predetermined time period after boiling detection before reducing power. This preliminary maintenance phase ensures that water continues to boil vigorously for a short duration, preventing the deterioration of boiling conditions that would occur if power were reduced immediately upon food insertion.
Solution Approach 2:
The system applies dynamics by implementing a time-based power control strategy that transitions from high power to reduced power after a predetermined duration. This dynamic adjustment allows the system to adapt to the changing cooking conditions after food insertion, balancing energy consumption with maintaining adequate boiling conditions for the required time period.
2Reliability
If power level is never reduced, then boiling conditions are maintained, but excessive steam is produced and too much energy is spent
Solution Approach 1:
The system implements periodic action by maintaining high power level for a predetermined time period and then reducing power to a lower level. This periodic power adjustment pattern allows the system to maintain boiling conditions sufficiently for cooking purposes while avoiding continuous high energy consumption that would result from never reducing power.
Solution Approach 2:
The system applies parameter changes by transitioning the power level parameter from high to reduced after a predetermined time. This parameter change enables the system to optimize between maintaining adequate boiling conditions for reliable cooking and reducing energy consumption, achieving a balance through controlled parameter adjustment.
3Productivity
If high power level is used to reduce boiling time, then cooking speed is improved, but excessive energy is consumed and water vaporizes too quickly
Solution Approach 1:
The system performs preliminary action by using high power level initially to quickly bring water to boiling and maintain boiling conditions for a predetermined time. This preliminary high-power phase achieves fast cooking speed improvement, after which power is reduced to prevent excessive energy consumption and water vaporization during the subsequent cooking period.
Solution Approach 2:
The system applies dynamics by implementing a time-based power adjustment strategy that transitions from high power to reduced power after a predetermined duration. This dynamic power control allows the system to achieve fast cooking speed during the initial phase while preventing excessive energy consumption and water loss in the extended cooking phase.
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
The system effectively reduces energy consumption, saves time by optimizing power usage, and prevents boil dry conditions by dynamically controlling power levels based on user needs and cooking parameters, providing efficient and informed cooking experiences.
Implementation Method 1
a control system capable of delivering an high power level in order to reduce time for reaching boiling and then reducing the power level when a higher power level is no longer necessary
Implementation Method 2
the specific system or method used for detecting the boiling condition that can be done, for instance, by means of temperature sensors or by detecting the behavior of one or more parameters of a resonant circuit
Implementation Method 3
the present invention relates to a method for controlling power supply to a cooking vessel and the liquid contents thereof, particularly for controlling the electrical power supply in an induction heating system
Implementation Method 4
induction heating system
Implementation Method 5
re-boils the water inside the pot and then reduces the power to a certain level for the rest of the cooking period
Implementation Method 6
to save energy and to avoid extreme and fast vaporization of water
Data Source
AI summary
A method for controlling power supply to the liquid contents of a cooking vessel or the like, particularly for controlling the electrical power supply in an induction heating system, wherein a predetermined thermodynamic state is detected and the user is alerted, comprises maintaining a predetermined high power condition after reaching the predetermined thermodynamic state for a predetermined time and then reducing the power supply to a predetermined level.