Layered Inductor Design for Aerosol Heating Flexibility
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Solution Overview
Problem
Conventional aerosol provision devices with fixed inductor geometries limit design flexibility and inductance, making it difficult to efficiently heat aerosol generating materials for inhalation.
Innovation Solution
A layered inductor arrangement with multiple layers and bifilar coils, allowing for varied spacing and material usage on each layer, enhancing inductance and design flexibility, and incorporating trapezoid-shaped inductors for improved heating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed geometry inductor arrangements are used, then the device structure is simple, but the design flexibility and inductance are limited
Solution Approach 1:
The patent transitions from planar single-layer inductor designs to three-dimensional multi-layer configurations. By stacking conductive layers vertically with controlled spacing, the invention adds a vertical dimension to the inductor geometry, enabling greater design flexibility and inductance adjustment without significantly increasing horizontal footprint or overall device complexity.
Solution Approach 2:
The inductor structure is divided into multiple discrete conductive layers that can be independently designed and positioned. Each layer can have different trace patterns, materials, and geometries, allowing the designer to segment the inductance into controllable portions across layers, thereby achieving flexible inductance tuning while maintaining manageable structural complexity.
2Reliability
If multi-layered inductor arrangements are implemented, then inductance and design flexibility improve, but the device complexity increases
Solution Approach 1:
Multiple conductive layers are nested vertically within a compact structure, with each layer contained within the vertical envelope of the others. This nesting approach allows the inductor to achieve high inductance and reliable heating performance through multi-layer configuration while maintaining a compact overall form factor, thereby managing structural complexity effectively.
Solution Approach 2:
The patent employs different conductive materials across different layers, such as copper traces on PCB substrates or suspended conductive elements. This composite material approach enables optimization of each layer's electrical and thermal properties for reliable heating while managing the complexity through standardized material selections and fabrication processes.
3Use of energy by moving object
If varied spacing between layers is used, then inductance can be optimized, but manufacturing precision requirements increase
Solution Approach 1:
Dielectric substrates or insulating layers are introduced as intermediary elements between conductive layers. These intermediaries provide mechanically stable spacing and electrical insulation, enabling precise control of inter-layer distances for optimized inductance and energy efficiency. The use of standardized dielectric materials with known thicknesses and properties reduces manufacturing precision requirements compared to direct metal-to-metal spacing.
Solution Approach 2:
The patent varies the spacing parameter between layers to optimize inductance and energy efficiency for different operating conditions. By treating layer spacing as a可调 parameter that can be adjusted during design and manufacturing, the system achieves energy optimization while managing precision requirements through controlled variation rather than requiring absolute precision across all configurations.
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
The solution enables more flexible and efficient aerosol generation, providing uniform heating and increased track density within the aerosol provision device, leading to improved aerosol quality and longer heating sessions.
Implementation Method 1
An induction heating system generally consists of a magnetic field generating device for generating a varying magnetic field, and a susceptor or heating material which is heatable by penetration with the varying magnetic field
Implementation Method 2
It is known to use induction heating systems as heaters to create an aerosol from a suitable medium
Data Source
AI summary
An aerosol provision device is disclosed and can include an aerosol generator having a layered inductor arrangement, wherein the layered inductor arrangement includes a plurality of layers optionally three or more layers.