Twisted Multi-Core Induction Coil for Low-Impedance Aerosol Heating
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Solution Overview
Problem
Existing aerosol generation apparatuses face issues with wire breakage during the twisting process and inefficiencies due to high alternating current impedance in their induction coils, leading to reduced heating efficiency.
Innovation Solution
The use of an induction coil with multiple wire cores, each formed by twisting conductive wires multiple times, and a cladding layer to prevent unraveling, along with a specific wire material and coil configuration to reduce impedance and internal losses, such as a solenoid or planar spiral coil design with a circular or rectangular cross-section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thin conductive wires are used to prepare the induction coil, then the coil structure is achieved, but wire breakage occurs during the twisting process
Solution Approach 1:
The wire material is divided into multiple wire cores (at least two), and each wire core is formed by twisting multiple conductive wires together. This segmentation approach distributes mechanical stress across multiple individual wires, preventing any single wire from bearing excessive load and breaking during the twisting and usage process.
Solution Approach 2:
The induction coil uses a composite wire structure where multiple conductive wires are twisted together to form wire cores, and multiple wire cores are then twisted together to form the complete wire material. This composite construction combines the strengths of individual thin wires while eliminating their individual weakness of easy breakage.
2Loss of energy
If traditional single-wire induction coils are used, then the structure is simple, but alternating current impedance is large leading to low heating efficiency
Solution Approach 1:
The wire material is segmented into multiple wire cores with multiple conductive wires each. This segmentation reduces the alternating current impedance by distributing the current across multiple parallel conductive paths, thereby reducing energy losses and improving heating efficiency despite the increased structural complexity.
Solution Approach 2:
The invention changes the structural parameters of the wire material from a single wire to multiple twisted wire cores. This parameter change optimizes the electrical properties (reducing alternating current impedance) and thermal properties (improving heating efficiency) of the induction coil.
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
This design enhances the stability of the induction coil, reduces wire breakage, and improves heating efficiency by minimizing alternating current impedance and internal losses, resulting in effective aerosol generation.
Implementation Method 1
an induction coil, configured to generate a changing magnetic field
Implementation Method 2
a susceptor, configured to be induced to produce heat in the changing magnetic field
Implementation Method 3
The magnetic field induces a susceptor to produce heat, to heat and atomize a liquid substrate
Data Source
AI summary
An aerosol generation apparatus includes: an induction coil, configured to generate a changing magnetic field; and a susceptor, configured to be induced to produce heat in the changing magnetic field, to heat an aerosol generation substrate, to generate an aerosol. A wire material of the induction coil includes at least two wire cores, and the wire core includes at least two conductive wires, to suppress self-formed current deviation and reduce an internal loss of the induction coil. Alternatively, the wire material of the induction coil includes a plurality of wire cores, each wire core is formed by twisting a plurality of conductive wires one or more times, and 3 to 20 conductive wires are used in first twisting of the plurality of conductive wires, to avoid wire breakage, reduce alternating current impedance of the induction coil, and reduce a loss caused by an internal proximity effect.