Segmented Heater Control for Puff-Responsive 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
An elongate heater with independently controllable heating regions along its longitudinal axis, capable of heating smokeable materials to a temperature range of 100° C to 250° C, is used to volatilize components without combustion, utilizing either ceramic or infra-red heating elements 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 along its longitudinal axis, allowing selective activation of only the regions needed for current operation. This segmentation reduces overall energy consumption while maintaining heating effectiveness, as fewer regions need to be activated simultaneously compared to a single large heating element.
Solution Approach 2:
Different heating regions can be activated based on local requirements - for example, activating only the regions where smokeable material is currently positioned. This local quality approach ensures energy is applied only where needed, improving energy efficiency without requiring a completely complex distributed heating system.
2Productivity
If the heater heats all smokeable material at once, then the delivery is consistent, but the energy consumption increases
Solution Approach 1:
The heater is divided into multiple independently controllable heating regions along its longitudinal axis, allowing selective activation of only the regions needed for current operation. This segmentation reduces overall energy consumption while maintaining heating effectiveness, as fewer regions need to be activated simultaneously compared to a single large heating element.
Solution Approach 2:
The controller activates heating regions sequentially or periodically based on detected puffs rather than continuously heating all regions. This periodic action maintains consistent compound delivery during use while significantly reducing energy consumption during non-use periods.
3Reliability
If the heater operates continuously, then the compound delivery is consistent, but the life of the heating source decreases
Solution Approach 1:
The controller activates heating regions in response to detected puffs rather than operating continuously. This periodic activation maintains reliable compound delivery during actual use while allowing the heating element to rest and cool between puffs, thereby extending its operational life and reducing degradation from continuous high-temperature exposure.
Solution Approach 2:
The system uses puff detection to automatically control heating activation, enabling the heater to remain dormant until needed. This self-service approach ensures the heater only operates when compounds need to be volatilized, maintaining delivery consistency while minimizing unnecessary wear and extending heater life.
4Use of energy by moving object
If multiple heating regions are used, then the energy consumption is reduced, but the device complexity increases
Solution Approach 1:
The heater is divided into multiple independently controllable heating regions along its longitudinal axis, allowing selective activation of only the regions needed for current operation. This segmentation reduces overall energy consumption while maintaining heating effectiveness, as fewer regions need to be activated simultaneously compared to a single large heating element.
Solution Approach 2:
Different heating regions can be activated based on local requirements - for example, activating only the regions where smokeable material is currently positioned. This local quality approach ensures energy is applied only where needed, improving energy efficiency without requiring a completely complex distributed heating system.
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 and 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
heating smokeable material to a temperature in a range of approximately 100° C. to 250° C.
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.