Induction Cooker Power Control via Input Current Feedback
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Solution Overview
Problem
High power cookers often require additional construction work to manage power distribution and can cause household circuit breakers to trip, limiting their use and convenience.
Innovation Solution
A power control system that includes a cooker with induction heating coils and a resonant capacitor, a power supply unit, and a control unit that adjusts driving power based on input current information to prevent overcurrents, using a power circuit breaker to manage power distribution efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high power cookers are used to increase cooking power, then cooking efficiency is improved, but circuit breaker trips occur and additional construction work is required
Solution Approach 1:
The cooker dynamically adjusts its power consumption based on real-time detection of input current. The control unit monitors the current from the power source and automatically modulates the heating power to keep total consumption below the circuit breaker's tripping threshold, enabling reliable operation of high-power cookers without modifying electrical infrastructure.
Solution Approach 2:
The system implements a feedback mechanism where the input current detection unit continuously monitors power source conditions and feeds this information to the control unit. The control unit then adjusts the power supply to the heating element accordingly, creating a closed-loop control system that prevents circuit breaker trips while maximizing usable cooking power.
2Productivity
If high power cookers are used to improve cooking performance, then cooking speed is improved, but additional construction work and power line extension are required
Solution Approach 1:
The cooker performs self-adjustment of power consumption without requiring external infrastructure modifications. The built-in current detection and control systems automatically manage power intake to operate within existing electrical capacity, eliminating the need for power line extensions or circuit breaker upgrades that would otherwise be required for high-power operation.
3Use of energy by moving object
If power consumption is increased to improve cooking efficiency, then heat generation is improved, but circuit breaker trips occur
Solution Approach 1:
The system changes the operating parameters of the cooker by dynamically adjusting power consumption levels based on detected input current conditions. This allows the cooker to operate at high power when electrical capacity permits, while automatically reducing power intake when approaching circuit breaker limits, thereby preventing trips while maximizing cooking efficiency.
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
Enhances power operation efficiency and system stability, allowing high power cookers to be used without additional construction or circuit breaker tripping, thereby improving user convenience.
Implementation Method 1
applying an AC magnetic field to the container
Implementation Method 2
heat generated by an eddy current loss and a hysteresis loss made in a cooking container
Implementation Method 3
heat generated by an eddy current loss and a hysteresis loss made in a cooking container
Implementation Method 4
induction heating cooker, one of cookers, is a device for cooking food by using heat generated by an eddy current loss and a hysteresis loss
Implementation Method 5
one or more burners having an induction heating coil and a resonant capacitor
Data Source
AI summary
A cooker, a method for controlling power of a cooker, and a power control system including the same are provided. A high power cooking device can be used without making an additional power construction work or causing a power circuit breaker installed in an input terminal of a household power source to be opened. Driving power of a burner is controlled or distributed by using a current flowing in a power circuit breaker or an overcurrent breaker installed in a load end, whereby power operation efficiency of an input power source can be enhanced and the input power source cannot be broken.