Induction Heating Element for Heat-Not-Burn Device Combustion Control
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Solution Overview
Problem
Current heat-not-burn (HNB) devices struggle to find a balance between heating tobacco to effectively release nicotine and other constituents without burning or igniting it, leading to inadequate aerosol production or unpleasant flavor profiles.
Innovation Solution
A system and method utilizing induction heating to incrementally heat a consumable tobacco component, positioning and advancing heat along the component with an induction heating element that provides an alternating electromagnetic field, thereby minimizing the risk of combustion and enhancing aerosol efficiency and flavor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heating temperature is increased to effectively release tobacco constituents, then aerosol production is improved, but combustion occurs producing unwanted toxins and burnt flavor
Solution Approach 1:
The heating process is divided into multiple discrete heating zones along the tobacco rod, with each zone heated independently by separate induction coils. This segmentation allows precise temperature control in different regions, ensuring sufficient heat for aerosol generation without reaching combustion temperatures anywhere in the system.
Solution Approach 2:
The system dynamically adjusts heating parameters including power level, heating duration, and coil activation sequences based on real-time temperature feedback and user puff detection. This dynamic control enables the system to optimize aerosol production while preventing combustion by adapting heating intensity to actual conditions.
2Quantity of substance
If heating power is increased to improve aerosol release, then constituent release is improved, but device components become dirtied with burning byproducts
Solution Approach 1:
The patent replaces traditional direct-contact heating mechanisms with induction heating technology, where electromagnetic fields induce currents in a susceptor that heats the tobacco rod without physical contact. This substitution eliminates the transfer of burning byproducts to internal heating components, keeping them clean while effectively releasing tobacco constituents.
3Productivity
If heating is applied to ensure sufficient aerosol production, then nicotine release is improved, but the risk of ignition increases
Solution Approach 1:
The system incorporates temperature sensors and control circuits that continuously monitor heating conditions and provide feedback to the power control system. This feedback mechanism allows the device to maintain temperatures sufficient for nicotine release while automatically reducing power if temperatures approach combustion levels, thereby controlling ignition risk.
Solution Approach 2:
The patent employs precise control of heating parameters including temperature, heating rate, and duration to optimize nicotine release. By carefully adjusting these parameters and using incremental heating approaches, the system achieves effective constituent release while maintaining temperatures below the combustion threshold.
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 allows for efficient aerosol production with reduced risk of combustion, improving the flavor profile and maintaining internal device cleanliness by heating less mass and conserving power.
Implementation Method 1
an induction heating element that provides an alternating electro-magnetic field around the component
Implementation Method 2
provides an alternating electro-magnetic field around the component
Implementation Method 3
The encasements may be coated with a gel that seals the openings until an inductive heating process melts the gel, clearing the openings
Data Source
AI summary
A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside a housing. The consumable can be in the form of a compressed powder. A first end of the housing can be capped with an end cap and a second end of the housing can have a mouthpiece. The housing containing the consumable and the susceptor can be placed inside a case with an inductive heating element configured to heat the susceptor. Heating the susceptor results in the consumable being released as an aerosol for inhalation.