Segmented Heater Control for Low-Combustion Smokeable Material Heating
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Solution Overview
Problem
Existing smoking alternatives, such as heat-not-burn products, face challenges in efficiently heating smokeable materials without combustion, requiring innovative heating solutions to volatilize compounds like nicotine and aromatic compounds effectively.
Innovation Solution
A heater with independently controllable, elongate heating regions arranged along a longitudinal axis, capable of heating smokeable materials to a temperature range of 100° C to 250° C, using ceramic or infra-red technology to volatilize components without combustion, and a controller to activate these regions sequentially in response to user puffs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single heating element is used to heat smokeable material, then the heating process is simple, but the energy consumption is high and the heating efficiency is low
Solution Approach 1:
The heater is divided into multiple independently controllable heating regions (first, second, third heating regions) arranged along the longitudinal axis. Each region can be activated separately based on the position and requirements of the smokeable material, allowing selective heating that reduces overall energy consumption while maintaining heating effectiveness.
2Duration of action of moving object
If the heater heats the entire smokeable material at once, then the heating is uniform, but the energy consumption increases and the heater life decreases
Solution Approach 1:
The heating regions are activated sequentially or selectively based on the position of the smokeable material relative to the heater. This prevents unnecessary heating of areas without material, reducing energy waste and extending heater life by avoiding continuous full-power operation.
Solution Approach 2:
The controller activates different heating regions in a periodic or sequential manner as the smokeable material moves through or is positioned relative to the heater. This periodic activation pattern reduces cumulative energy consumption and thermal stress on the heater elements.
3Reliability
If the heater temperature is increased to ensure consistent delivery of volatilized compounds, then the delivery consistency improves, but the risk of combustion increases
Solution Approach 1:
Multiple heating regions allow for distributed thermal energy application along the heater length. This segmentation enables maintaining lower peak temperatures in individual regions while achieving consistent overall heating of the smokeable material, reducing combustion risk while preserving delivery consistency.
Solution Approach 2:
Different heating regions can be operated at different temperature levels based on local requirements. Regions in contact with smokeable material are heated to volatilization temperatures, while other regions operate at lower temperatures, ensuring consistent compound delivery without creating conditions for combustion.
4Productivity
If multiple heating regions are used to reduce energy consumption, then the energy efficiency improves, but the control complexity increases
Solution Approach 1:
The heater is segmented into distinct heating regions that can be independently controlled. This segmentation enables targeted heating of only the portions of the smokeable material that require it, improving heating efficiency by eliminating energy waste in areas without material.
Solution Approach 2:
The controller monitors the position and heating requirements of the smokeable material and adjusts the activation of individual heating regions accordingly. This feedback mechanism automates the control of multiple regions, managing complexity while optimizing heating efficiency based on real-time conditions.
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 solution allows for efficient, controlled heating of smokeable materials, reducing energy consumption and extending the life of the heating source, while ensuring consistent delivery of volatilized compounds like nicotine and aromatic compounds with each puff.
Implementation Method 1
a heater configured to heat smokeable material to volatilize at least one component of the smokeable material
Implementation Method 2
the heater is configured to heat smokeable material located around an outside of the longitudinal surface of the heater
Implementation Method 3
The heater may be a substantially ceramics heater responsive to electrical energy to emit thermal energy
Implementation Method 4
The apparatus may comprise an infra-red heater. The infra-red heater may comprise a halogen infra-red heater
Data Source
AI summary
An apparatus comprising a heater configured to heat smokeable material to volatilize at least one component of the smokeable material, wherein the heater is elongate and comprises a plurality of independently controllable heating regions arranged sequentially along a longitudinal axis of the heater.