Aerosol Generating Device Indexed Substrate Rotation
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Solution Overview
Problem
Existing aerosol generating devices require high power consumption and lack control over the heating of aerosol generating substrates, as they typically heat the entire substrate to produce an aerosol.
Innovation Solution
An aerosol generating device with a housing and a stationary heater that uses indexed rotational movement of the aerosol generating substrate to heat specific portions, reducing the need for a larger heater and enhancing energy efficiency by allowing controlled heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the entire aerosol generating substrate is heated to produce an aerosol, then the aerosol generation function is achieved, but the power consumption is high
Solution Approach 1:
The substrate rotation mechanism divides the heating process into multiple segments, where only a portion of the substrate is heated at any given time. The substrate is rotated in indexed increments to bring different portions into the heating zone sequentially, effectively segmenting the thermal processing and reducing the total power required compared to heating the entire substrate simultaneously.
Solution Approach 2:
The substrate is made dynamically rotatable during the heating process. The rotation mechanism allows the substrate to move from a stationary position where the entire surface would need heating, to a dynamic state where only a moving portion is heated at any instant, thereby reducing energy consumption while maintaining aerosol generation effectiveness.
2Temperature
If a larger heater is used to heat the entire aerosol generating substrate, then complete heating is achieved, but the device size and power requirements increase
Solution Approach 1:
The heating function is segmented in time and space through substrate rotation. Instead of requiring a large heater to cover the entire substrate surface simultaneously, a smaller heater covers only the active heating zone, while rotation brings different portions of the substrate through this zone sequentially to achieve complete heating coverage.
Solution Approach 2:
The solution adds the temporal dimension of rotation to the heating process. Rather than expanding the heater area in two dimensions to cover the entire substrate, the system uses rotational movement to bring different substrate portions into the fixed heater zone at different times, effectively achieving complete heating with a smaller heater through dimensional transformation from static to dynamic processing.
3Stability of the object's composition
If the entire aerosol generating substrate is heated uniformly, then consistent temperature is achieved, but energy efficiency is reduced
Solution Approach 1:
The substrate rotation creates a periodic heating action where different portions of the substrate are sequentially brought into the heating zone. This periodic movement ensures that each portion receives consistent thermal treatment during its time in the heating zone, maintaining temperature uniformity across the substrate while avoiding the energy waste of heating the entire substrate simultaneously and continuously.
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 achieves reduced power requirements and improved control over heating, enabling efficient aerosol generation with suitable characteristics for inhalation, using a smaller heater and ensuring consistent heating of the substrate.
Implementation Method 1
a resistive heating element is provided to heat aerosol generating substrate positioned within a cavity of the device and thereby generate a vapour which typically cools and condenses to form an aerosol
Implementation Method 2
generate a vapour which typically cools and condenses to form an aerosol for inhalation by a user of the device
Data Source
Figure 1
Figure 2a~2c
Figure 3a~3b
AI summary
An aerosol generating device (10) comprises a housing (16) defining a compartment (18) for receiving an aerosol generating substrate (32) and a stationary heater (40) positioned adjacent to an outer surface (36) of the aerosol generating substrate (32) and arranged to heat a portion of the aerosol generating substrate (32) positioned adjacent to the heater (40). The aerosol generating device (10) further comprises a support element (44) for supporting the aerosol generating substrate (32), a capture element (50) and a release element (56). The cooperation between the support element (44), capture element (50) and release element (56) provides indexed rotational movement of the support element (44), and corresponding indexed rotational movement of the aerosol generating substrate (32), in the compartment (18) so that successive portions of the outer surface (36) of the aerosol generating substrate (32) are sequentially positioned adjacent to the stationary heater (40).