Adjustable Heating Element Array for Aerosol Article Contact
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Solution Overview
Problem
Existing smoking alternatives that heat instead of burn tobacco do not efficiently deliver aerosol due to inadequate contact and compression of aerosol-generating materials, leading to inefficient heating and inconsistent vapor production.
Innovation Solution
An aerosol provision device with a heating assembly featuring a heating element array that adjusts between clamped and unclamped conditions, allowing for even contact and compression of aerosol-generating articles, enhancing heat transfer and vapor production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating elements are fixed in position, then device structure is simple, but contact area with article is insufficient leading to inefficient heating
Solution Approach 1:
The heating element array is made adjustable between clamped and unclamped conditions, allowing the heating elements to move relative to each other. This dynamic configuration enables the heating elements to adapt to different article sizes and shapes, maximizing contact area for efficient heating while maintaining structural simplicity when not in use.
2Temperature
If heating elements are compressed against article, then heat transfer is improved, but article may be damaged
Solution Approach 1:
The adjustable heating element array allows dynamic control of compression force. In the clamped condition, heating elements apply sufficient pressure for efficient heat transfer, while in the unclamped condition, no compression is applied, preventing article damage. This dynamic adjustment resolves the contradiction between heat transfer efficiency and article protection.
3Area of stationary object
If heating elements are movable, then contact area with article increases, but device complexity increases
Solution Approach 1:
The heating element array employs a simple yet effective dynamic mechanism that allows heating elements to move between clamped and unclamped positions. This design increases contact area with the article when needed while maintaining relatively simple device structure through the use of a straightforward adjustable mechanism.
4Stability of the object's composition
If heating elements are evenly distributed, then heating uniformity is improved, but adaptability to different article sizes is reduced
Solution Approach 1:
The heating element array can be adjusted between evenly distributed positions for uniform heating and reconfigured positions for different article sizes. The ability to move heating elements relative to each other allows the system to maintain heating uniformity while adapting to various article dimensions, resolving the contradiction between uniformity and versatility.
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 device ensures consistent and efficient heating of aerosol-generating materials by maintaining a large contact area with the article, improving vapor quality and quantity through adjustable heating element positioning.
Implementation Method 1
a heating element array comprising at least three heating elements, wherein the at least three heating elements are distributed around the longitudinal axis to surround the heating zone
Implementation Method 2
The heating elements may be resistive heating elements
Data Source
AI summary
An aerosol provision device for generating aerosol from an aerosol-generating material includes a heating assembly having a heating zone configured to receive at least a portion of an article including aerosol-generating material. The heating zone defines a longitudinal axis along which at least a portion of an article including aerosol-generating material is extendable. The device includes a heating element array having at least three heating elements, wherein the at least three heating elements are distributed around the longitudinal axis to surround the heating zone. The heating element array is adjustable between a clamped condition and an unclamped condition in which at least one of the at least three heating elements is moved relative to at least one other of the at least three heating elements.