Preheating Heater for Aerosol Generation System
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Solution Overview
Problem
Conventional electronic tobacco devices face delays in heating up and are prone to cigarette tar buildup, which interferes with the insertion of new cigarettes and affects aerosol generation efficiency.
Innovation Solution
An aerosol generating system with a holder and cradle configuration, where the holder is electrically connected to the cradle and movable within it, includes a controller that predicts cigarette insertion and preheats the heater in advance to ensure optimal temperature for aerosol generation, reducing tar issues and improving insertion ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional atomizer is used without preheating, then the device structure is simple, but the atomizer cannot be easily cleaned and maintains bad odors
Solution Approach 1:
The patent applies preliminary action by introducing a preheating heater that heats the atomizer before atomization occurs. This preheating action prevents resin and odor buildup during operation, making the atomizer easier to clean and maintain. The heater is positioned to directly heat the atomizer body, ensuring the atomizer surface remains clean and odor-free without requiring complex cleaning mechanisms.
2Object-generated harmful factors
If the atomizer is not preheated, then the device is simpler, but resin accumulates and produces bad odors
Solution Approach 1:
The preheating heater performs preliminary heating of the atomizer before vaporization occurs. This prevents resin accumulation and odor generation by maintaining the atomizer surface at a temperature that inhibits resin adhesion. The heater element is strategically positioned to heat the atomizer body directly, eliminating the need for complex odor removal systems.
3Power
If the coil is wound tightly to increase resistance, then heating efficiency improves, but the coil breaks easily
Solution Approach 1:
The patent applies parameter changes by optimizing the coil winding parameters - specifically using 30-50 turns of wire with controlled tightness. This parameter optimization achieves sufficient heating power (20-40W) while maintaining coil integrity. The coil is wound with appropriate tension to maximize resistance and heating efficiency without exceeding the mechanical strength limits of the coil structure.
4Ease of operation
If the atomizer is heated too much, then cleaning becomes easier, but the atomizer material may be damaged
Solution Approach 1:
The patent applies parameter changes by controlling the preheating temperature within a specific range (50-100°C). This temperature range is sufficient to prevent resin accumulation and facilitate cleaning while remaining below the damage threshold for common atomizer materials like plastic and resin. The heater power and duration are optimized to achieve this temperature control.
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 system achieves timely aerosol generation with a sufficient amount of aerosol produced and facilitates easy cigarette insertion by preheating the heater, maintaining a predetermined temperature and minimizing tar-related interference.
Implementation Method 1
a preheating heater (P10) that heats the atomizer (P1) before atomization occurs
Implementation Method 2
the coil is wound tightly to increase resistance, then the coil breaks easily
Data Source
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AI summary
An aerosol generating system includes a holder generating aerosol by heating a cigarette, and a cradle having an inner space into which the holder is inserted, wherein the holder is electrically connected to the cradle to be moveable in the inner space of the cradle. The aerosol generating system includes a controller and a heater for heating an aerosol generating material, wherein the controller predicts insertion of the cigarette into the holder and preheats the heater in advance based on a prediction result.