Electromagnetic heating device
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Solution Overview
Problem
Existing electromagnetic heating devices are limited in their ability to heat both ferromagnetic and un-ferromagnetic cooking appliances, with maximum heating power restricted by the coil disks, and lack efficiency in continuous low-power heating.
Innovation Solution
An electromagnetic heating device incorporating both an electromagnetic heating unit and an infrared heating unit, controlled by a microcontroller (MCU) that distributes power based on user input and detects material type, allowing simultaneous or individual heating of the units to optimize power usage and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only electromagnetic heating unit is used, then the device can heat ferromagnetic cooking appliances, but it cannot heat un-ferromagnetic cooking appliances and the heating power is limited by the coil disks
Solution Approach 1:
The patent combines electromagnetic heating unit and infrared heating unit into a single device. The electromagnetic heating unit uses coil disks to generate electromagnetic fields for heating ferromagnetic materials, while the infrared heating unit uses infrared heating films to heat un-ferromagnetic materials. This merging allows the device to handle both ferromagnetic and un-ferromagnetic cooking appliances, resolving the limitation of material adaptability while also overcoming the power restriction imposed by coil disks alone.
Solution Approach 2:
The heating device is designed with dual heating functions: electromagnetic heating for ferromagnetic materials and infrared heating for un-ferromagnetic materials. The control unit automatically selects the appropriate heating mode based on material detection, making the device universally applicable to various cooking appliance materials. This multi-functionality directly addresses the contradiction by enabling the device to adapt to different materials without being constrained by the limitations of a single heating mechanism.
2Use of energy by moving object
If electromagnetic heating unit operates at low power, then energy consumption is reduced, but the heating efficiency drops and noise increases due to continuous operation of electronic components
Solution Approach 1:
The patent implements dynamic power distribution through the control unit, which can switch between different heating modes based on power level requirements. At low power levels (below first preset power value), only the infrared heating unit operates, avoiding the noise and inefficiency of electromagnetic heating at low power. At medium power levels (between first and second preset power values), only the electromagnetic heating unit operates for optimal efficiency. At high power levels (above second preset power value), both units operate simultaneously to distribute thermal load and improve overall efficiency. This dynamic switching strategy resolves the contradiction between energy consumption and heating efficiency.
Solution Approach 2:
The control unit changes operational parameters by switching between different heating configurations based on the selected power level. It uses preset power values as thresholds to determine which heating unit(s) to activate, thereby optimizing the balance between energy consumption and heating efficiency across different operating conditions. This parameter-based control strategy allows the system to avoid continuous operation of electronic components at low power while maintaining high heating efficiency when needed.
3Speed
If electromagnetic heating unit operates at high power, then heating speed increases, but electronic component stress and noise increase
Solution Approach 1:
The patent employs partial action by selectively activating only the necessary heating unit(s) based on the selected power level. When high power heating is required (above second preset power value), both electromagnetic and infrared heating units operate simultaneously, distributing the thermal load and reducing stress on individual electronic components. This partial activation strategy allows the system to achieve high heating speed while mitigating the reliability issues associated with continuous high-power operation of a single heating mechanism.
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 wide-ranging heating of different materials without power limitations, improves heating efficiency and reduces noise and electronic component stress by allowing combined heating at high powers, and facilitates continuous low-power heating.
Implementation Method 1
an electromagnetic heating unit, an infrared heating unit
Implementation Method 2
an induction heating coil
Implementation Method 3
an infrared heating unit
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present disclosure provides an electromagnetic heating device, comprising: an electromagnetic heating unit, an infrared heating unit and a MCU. The MCU is coupled with the electromagnetic heating unit and the infrared heating unit, so as to control the electromagnetic heating unit and the infrared heating unit to heat individually or simultaneously. The electromagnetic heating device of the present disclosure, since it comprises an electro electromagnetic heating unit and an infrared heating unit, the heating of the heating appliances of different materials can be performed, the application thereof is wide and unrestricted. In addition, since the infrared heating unit is comprised, the maximum heating power thereof is not limited by that of the coil disk.