Tapered Heating Element Rod for Aerosol Device
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Solution Overview
Problem
Existing non-combustible aerosol provision devices face challenges in efficiently heating aerosolizable materials without combustion, and in the removal of the heating element from the device, where aerosolizable material often adheres to the heating element, causing hygiene and sensory issues.
Innovation Solution
A heating element with a rod design featuring tapered portions and a varying magnetic field-heatable material, where the rod's geometry and surface roughness facilitate easy insertion and removal, reducing material adhesion through controlled angles and surface treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the heating element rod has a standard cylindrical shape, then it is simple to manufacture, but the aerosolizable material adheres strongly to the rod during removal
Solution Approach 1:
The rod is designed with tapered portions that create curved surfaces instead of a standard cylindrical shape. The first tapered portion has a first angle and the second tapered portion has a second angle, both smaller than conventional designs. These curved tapered surfaces reduce the adhesion of aerosolizable material to the rod during removal, while still allowing the rod to be manufactured using standard machining processes.
2Object-generated harmful factors
If the rod has a smaller angle between the longitudinal axis and outer tapered surface, then material adhesion is reduced during removal, but the rod becomes more difficult to insert into the device
Solution Approach 1:
The rod is divided into multiple portions along its length: a first tapered portion with a first angle, a second tapered portion with a second angle, and a third portion. This segmentation allows different sections to serve different functions - the first tapered portion facilitates easy removal by reducing adhesion, while the second tapered portion maintains sufficient angle for easy insertion. The third portion provides the functional heating element. This segmented design resolves the contradiction between ease of removal and ease of insertion.
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 efficient heating of aerosolizable materials without combustion and minimizes material adhesion during removal, enhancing device hygiene and user experience by ensuring smooth extraction of the heating element.
Implementation Method 1
the rod comprises heating material that is heatable by penetration with a varying magnetic field
Data Source
AI summary
Disclosed is a heating element (1) for a non-combustible aerosol provision device (100), the heating element (1) having a rod (10), wherein the rod (10) has a longitudinal axis, a distal end portion (13), and first and second tapered portions (11, 12) at respective longitudinal positions along the longitudinal axis. The second tapered portion (12) extends from the distal end portion (13) towards the first tapered portion (11), and a cross-sectional area of the rod (10) increases with distance from the distal end portion (130) in each of the first and second tapered portions (11, 12). A first angle between the longitudinal axis and an outer tapered surface (11s) of the first tapered portion (11) is smaller than a second angle between the longitudinal axis and an outer tapered surface (12s) of the second tapered portion (12).