Adjustable Induction Coil for Uniform Aerosol Heating
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Solution Overview
Problem
Existing aerosol generating devices in electronic cigarettes have a heating element with a fixed length, leading to uneven heating of aerosol materials due to mismatched lengths, resulting in insufficient heating of some areas and a suboptimal user experience.
Innovation Solution
An aerosol generating device with a heating element and an induction coil that can adjust its length through a slider or gear switch, allowing for uniform heating of aerosol materials by generating eddy currents and covering the entire length of the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a heating element with fixed length is used, then the device structure is simple, but the heating area cannot cover the entire length of the tobacco material, resulting in uneven heating
Solution Approach 1:
The induction coil length is made adjustable through a slider mechanism that allows the coil to be extended or retracted along the heating element. This dynamic adjustment enables the heating area to match different tobacco material lengths, ensuring uniform heating while maintaining a relatively simple overall device structure.
2Adaptability or versatility
If the heating element length is fixed, then the manufacturing process is simple, but it cannot adapt to different lengths of aerosol generating material
Solution Approach 1:
The induction coil is designed with adjustable length capability, allowing it to adapt to different aerosol generating material lengths. The slider mechanism enables easy adjustment of the coil extension length, providing versatility without significantly complicating the manufacturing process.
Solution Approach 2:
The length parameter of the induction coil is made variable rather than fixed. By allowing the coil length to be adjusted, the system can adapt to different material lengths while maintaining a straightforward manufacturing approach for the heating element assembly.
3Ease of operation
If a fixed-length heating element is used, then the device structure is simple, but the heating area is insufficient to heat the entire tobacco material uniformly
Solution Approach 1:
A slider mechanism is introduced to enable dynamic adjustment of the induction coil length. This adjusting mechanism allows the heating area to be extended to cover the entire tobacco material length, improving heating coverage while adding only a simple sliding component to the device structure.
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
Ensures uniform heating of aerosol materials, improving the overall utilization and user experience by allowing adjustment of the heating area to match different material lengths, ensuring thorough heating and enhanced aerosol generation.
Implementation Method 1
an induction coil for generating an alternating magnetic field... the induction coil is positioned around the periphery of the heating element... at least overlapping portion of the heating element corresponding to the induction coil of this length internally generates eddy currents
Implementation Method 2
at least overlapping portion of the heating element corresponding to the induction coil of this length internally generates eddy currents and heats the aerosol generating material
Implementation Method 3
an induction coil for generating an alternating magnetic field... internally generates eddy currents and heats the aerosol generating material
Data Source
AI summary
An aerosol generating device includes a device main body defining a heating chamber for accommodating an aerosol generating material, a heating element made of a metal material and mounted in the heating chamber, an induction coil configured to generate an alternating magnetic field and positioned around the periphery of the heating element, a power supply connected with the induction coil to form an electrical circuit, and an adjusting element for changing a length of the induction coil which is connected into the electrical circuit, so that at least overlapping portion of the heating element corresponding to the induction coil of this length internally generates eddy currents and heats the aerosol generating material.