Induction Heating Device with Visual Temperature Feedback Lighting
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Solution Overview
Problem
Existing tabletop induction heating devices lack intuitive temperature control and visual feedback, making it difficult for users to accurately determine the heating status of cooking utensils, and they often require direct electrical connections which can be inconvenient and less efficient.
Innovation Solution
An induction heating device with a working coil for eddy current induction, a power supply unit using magnetic resonance for wireless charging, temperature sensors, and a control unit that adjusts lighting based on detected temperatures to provide visual feedback, allowing users to intuitively recognize the heating status through color and illuminance changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If direct electrical connections are used for induction heating, then heating efficiency is improved, but ease of operation deteriorates and burn risks increase
Solution Approach 1:
The patent introduces a wireless power transmission system as an intermediary between the power source and the heating element. The power supply unit transmits electrical energy wirelessly through electromagnetic fields to the working coil, eliminating the need for direct electrical connections while maintaining heating efficiency. This mediator approach resolves the contradiction by preserving productivity through efficient energy transfer while improving ease of operation through contactless power delivery.
2Device complexity
If temperature control information is not provided visually, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent implements a visual feedback system where the control unit receives temperature information from the temperature sensor and controls the lighting unit to display the heating status. The lighting unit changes its illumination state based on the detected temperature, providing intuitive visual feedback to users about the heating process. This feedback mechanism resolves the contradiction by maintaining simple device architecture while significantly improving temperature measurement precision and user awareness through visual indicators.
3Ease of operation
If visual feedback system is added to show heating status, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent integrates the lighting unit into the induction heating device to serve multiple functions: it acts as both a structural component and a visual feedback display. The lighting unit is controlled by the control unit to indicate heating status, cooking completion, or operational states. This multi-functionality approach resolves the contradiction by improving ease of operation through intuitive visual cues while minimizing device complexity by repurposing existing components rather than adding separate display systems.
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 users to visually and intuitively recognize the heating status of cooking utensils, providing efficient and safe heating without direct electrical connections, reducing burn risks and environmental impact by using wireless charging and electromagnetic induction.
Implementation Method 1
a working coil for creating a magnetic field for induction of eddy current in a cooking utensil so as to heat the cooking utensil
Implementation Method 2
a power supply unit for providing induction voltage to operate the working coil, wherein the power supply unit includes a wireless charging receiver for receiving wireless charging signal
Data Source
AI summary
An induction heating device and a method of controlling the induction heating device are provided. The induction heating device may include a working coil, a power supply to provide an induction voltage to operate the working coil, a temperature sensor to sense a temperature of a cooking utensil, a first lighting unit to emit visually perceivable light, a second lighting unit to emit visually perceivable light, and a controller for controlling the first lighting unit based on the sensed temperature of the cooking utensil transmitted from the temperature sensor.