Cobalt-Coated Heating Element for Magnetic Aerosol Volatilization
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Solution Overview
Problem
Existing heating elements for aerosolisable materials, such as those used in heat-not-burn products, face challenges in efficiently heating materials without combustion, particularly due to limitations in material selection and energy absorption efficiency.
Innovation Solution
A heating element comprising a heat-resistant support coated with a thin layer of cobalt, which enhances energy absorption from a varying magnetic field, is proposed. This configuration includes a heat-resistant protective coating to prevent oxidation and mechanical wear, optimizing the heating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heating element is used to heat aerosolisable material, then the material can be volatilised to create aerosol, but the heating element may oxidize and wear due to exposure to heat and chemicals
Solution Approach 1:
The heating element uses a composite structure combining a heat-resistant support (stainless steel or other heat-resistant material) with a cobalt coating layer. This composite material approach allows the support to provide structural integrity and heat resistance while the cobalt coating provides oxidation resistance and enhances heating efficiency, thereby improving overall durability without compromising to harmful factors.
Solution Approach 2:
The cobalt coating acts as an intermediary protective layer between the heating element support and the harsh environment (heat, oxygen, chemicals). This intermediate cobalt layer prevents direct contact between the support and oxidizing agents, reducing oxidation and mechanical wear while still allowing efficient heat transfer to the aerosolisable material.
2Use of energy by moving object
If a thick coating is applied to enhance energy absorption, then energy absorption from magnetic field improves, but manufacturing complexity and cost increase
Solution Approach 1:
The patent optimizes the cobalt coating thickness parameter to achieve the desired energy absorption efficiency without excessive complexity. By carefully selecting and controlling the coating thickness during application, the system achieves effective energy absorption from the magnetic field while maintaining manufacturing feasibility and avoiding unnecessary complexity.
3Power
If cobalt coating is applied to enhance heating efficiency, then energy transfer improves, but the coating is susceptible to oxidation without protective layer
Solution Approach 1:
The heating element combines cobalt coating (for high heating efficiency and magnetic properties) with a heat-resistant protective coating (for oxidation resistance) in a composite structure. This allows the system to benefit from both the high power heating efficiency of cobalt and the oxidation protection provided by the protective coating layer.
Solution Approach 2:
The heat-resistant protective coating serves as an intermediary protective barrier between the cobalt coating and the oxidizing environment. This intermediate layer prevents direct oxidation of the cobalt while still allowing the cobalt to perform its heating function efficiently, thus resolving the contradiction between heating efficiency and oxidation resistance.
4Reliability
If heat-resistant protective coating is applied to prevent oxidation, then durability improves, but the coating thickness and manufacturing complexity increase
Solution Approach 1:
The patent optimizes the thickness parameter of the heat-resistant protective coating to achieve adequate oxidation resistance without excessive complexity. By carefully controlling the coating thickness within reasonable limits, the system achieves sufficient protection against oxidation while avoiding unnecessary manufacturing complexity and cost.
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 use of a cobalt-coated heating element with a heat-resistant protective coating achieves efficient energy transfer and uniform heating of aerosolisable materials, improving the performance and longevity of heat-not-burn products.
Implementation Method 1
a coating on the support, and wherein the coating comprises cobalt
Implementation Method 2
a heat resistant protective coating to prevent oxidation and mechanical wear
Implementation Method 3
heating element for heating the heating zone
Data Source
Figure 1~3
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Figure 7~8
AI summary
Disclosed is a heating element (3) for use in heating aerosolisable material (20) to volatilise at least one component of the aerosolisable material. The heating element comprises a heat resistant support (3a) and a coating (3b) on the support. The heating coating comprises cobalt. Further, the heating element comprises a protective coating (3c). Further, an article for use with apparatus (2000) for heating aerosolisable material in thermal contact with the heating element is disclose. A system for heating aerosolisable material using the heating element is further disclosed.The apparatus (2000) comprises a magnetic field generator for generating a varying magnetic field for penetrating the heating element of claim 1.