Dual-Coil Induction Heating for Faster Low-Power Warm-Up
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional heating systems in electronic devices, such as electronic cigarettes, take an undesirable amount of time to heat up and require increased power consumption for faster heating, necessitating a more efficient method.
Innovation Solution
An induction heating system using two induction coils wrapped around a metal cylinder, with alternating currents in opposite directions to generate stable magnetic flux for rapid and efficient heating, controlled by a control circuit that adjusts current flow based on battery state of charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional heating methods are used, then the heating element can be simple, but the heating time becomes excessively long
Solution Approach 1:
The patent replaces conventional resistive heating with induction heating, which uses electromagnetic fields to directly heat the metal cylinder. This substitution of heating mechanism dramatically reduces heating time while maintaining simplicity in the overall system design
Solution Approach 2:
The patent utilizes electromagnetic field generation and magnetic flux penetration to induce eddy currents in the metal cylinder, creating heat through electromagnetic induction rather than direct contact heating, thereby achieving rapid heating phase transition
2Speed
If power consumption is increased to heat faster, then heating speed improves, but energy efficiency deteriorates
Solution Approach 1:
By replacing resistive heating with induction heating, the system achieves faster heating speeds with better energy efficiency. The electromagnetic induction method directly generates heat in the target material without the energy losses associated with conventional heating methods
Solution Approach 2:
The patent employs alternating current at specific frequencies to generate oscillating magnetic fields that induce eddy currents in the metal cylinder. This periodic electromagnetic action creates efficient heat generation while maintaining controlled power consumption
3Loss of energy
If direct induction heating is used, then heating efficiency improves, but circuit complexity increases
Solution Approach 1:
The patent extracts and eliminates unnecessary circuit components by using a simplified induction heating configuration. The system employs basic alternating current generation and magnetic field coupling, removing complex control circuits while maintaining high heating efficiency
Solution Approach 2:
The induction coil serves multiple functions: generating electromagnetic fields, inducing eddy currents, and transferring heat to the metal cylinder. This multi-functionality reduces the need for separate control mechanisms, thereby simplifying the overall circuit design while maintaining 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
Achieves rapid and efficient heating with minimal power consumption by stabilizing magnetic flux and adjusting current flow, maintaining consistent temperature through alternating coil currents.
Implementation Method 1
induction heating system using two induction coils wrapped around a metal cylinder, with alternating currents in opposite directions to generate stable magnetic flux for rapid and efficient heating
Implementation Method 2
alternating currents in opposite directions to generate stable magnetic flux for rapid and efficient heating
Implementation Method 3
alternating currents in opposite directions to generate stable magnetic flux for rapid and efficient heating
Data Source
AI summary
Various embodiments of the present technology comprise a method and system for induction heating. The system may provide a first induction coil wrapped around a metal cylinder and a second induction coil wrapped around the metal cylinder. The first induction coil may carry a current in a first direction and the second induction coil may carry a current in an opposite, second direction. The currents may be generated in an alternating sequence.