Heated Smoking Unit Split Power Architecture for Cigarette-Like Size
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Solution Overview
Problem
Existing electrically operated smoking systems are bulky and inconvenient for smokers, as they are larger than a lit-end cigarette and cannot be easily held between the fingers like a traditional cigarette.
Innovation Solution
The system is divided into a primary and secondary unit, where the secondary unit includes a heating element, a secondary power supply, and secondary circuitry, allowing it to be compact enough to be held like a cigarette, with the primary unit providing additional power and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the smoking system includes a power supply and electronic circuitry, then the system can operate heating elements to generate aerosol, but the device size becomes larger and less convenient for the smoker
Solution Approach 1:
The smoking system is divided into two separate units: a compact handheld unit that the smoker holds and operates, and a larger base unit containing the power supply and electronic circuitry. This segmentation allows the handheld unit to be small and convenient (similar size to a lit-end cigarette) while the base unit houses all the power and control components.
Solution Approach 2:
A docking interface acts as an intermediary between the handheld unit and the base unit. This interface enables the handheld unit to connect to the base unit for power transfer and control signal transmission, allowing the compact handheld unit to access the power and intelligence of the larger base unit without carrying them permanently.
2Volume of moving object
If the device is made smaller to be held like a cigarette, then portability improves, but the power supply capacity is reduced
Solution Approach 1:
The power supply function is segmented from the handheld unit and placed in the base unit. The handheld unit contains only the minimum components needed for aerosol generation (heating element and control circuitry), while the base unit contains the main power supply. This allows the handheld unit to be small without sacrificing power capacity.
Solution Approach 2:
The base unit pre-charges the handheld unit's small power supply through the docking interface before the smoker uses it. This preliminary charging action ensures that the handheld unit has sufficient power for the smoking session without needing to carry a large power supply permanently.
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 design allows for a compact smoking system that can maintain the temperature of the aerosol-forming substrate during smoking, reducing size without increasing pre-heating time, and enabling easy portability and convenience.
Implementation Method 1
at least one heating element... to increase the temperature of the aerosol-forming substrate to an operating temperature
Implementation Method 2
a secondary power supply arranged to supply electrical power to the at least one heating element during a smoking mode, to maintain the temperature of the aerosol-forming substrate at substantially the operating temperature
Data Source
AI summary
An electrically heated smoking system includes a secondary unit capable of receiving a smoking article having an aerosol-forming substrate. The secondary unit includes at least one heating element and an interface for connection to a primary power supply for supplying electrical power to the at least one heating element during a pre-heating mode, to increase the temperature of the aerosol-forming substrate to an operating temperature. The secondary unit further includes a secondary power supply arranged to supply electrical power to the at least one heating element during a smoking mode, to maintain the temperature of the aerosol-forming substrate at substantially the operating temperature. The secondary unit also includes secondary circuitry. The electrically heated smoking system optionally includes a primary unit.