Portable Convection Vaporizer With Inhalation-Triggered Rapid Heating
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Solution Overview
Problem
Convection-based portable vaporizers require lengthy warm-up and cool-down times, leading to inefficient vaporization and loss of active ingredients, and lack precise temperature control, resulting in variable vapor quality.
Innovation Solution
A portable convection vaporizer with a heater that generates turbulence in air flow, coupled with a controller that rapidly heats air to a predetermined temperature upon detecting user inhalation, and regulates heater temperature using resistance measurements and thermocouples to ensure efficient and rapid vapor delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If convection-based portable vaporizers are used, then vaporization can be achieved, but lengthy warm-up and cool-down times are required
Solution Approach 1:
The vaporizer employs periodic heating cycles where the heater is activated only during user inhalation events rather than continuous operation. The system detects inhalation through airflow sensors and triggers rapid heating cycles that last only as long as needed, eliminating prolonged warm-up and cool-down periods while maintaining effective vaporization when required.
Solution Approach 2:
The system performs preliminary detection of user inhalation intent through airflow sensors before initiating the heating process. This allows the heater to be activated at the precise moment needed, eliminating unnecessary warm-up time. The controller is pre-configured to immediately initiate heating upon detecting inhalation, ensuring rapid response without extended preparation periods.
2Reliability
If convection-based portable vaporizers operate at elevated temperatures for extended periods, then vaporization function is maintained, but active ingredients are lost to the ambient environment
Solution Approach 1:
The vaporizer system activates the heater only during brief periods when user inhalation is detected, rather than maintaining continuous elevated temperatures. This periodic operation ensures vaporization function is available when needed while minimizing the total time active ingredients are exposed to elevated temperatures and potential loss to the ambient environment.
Solution Approach 2:
The system incorporates airflow sensors that provide real-time feedback on user inhalation events. This feedback mechanism allows the controller to precisely control heater activation and deactivation timing, ensuring the heater operates only when vapor is being drawn through the system, thereby preventing active ingredient loss during non-use periods.
3Temperature
If convection-based portable vaporizers are used, then vaporization can be achieved, but air temperature cannot be tightly controlled
Solution Approach 1:
The vaporizer incorporates temperature sensors that continuously monitor air temperature in the vaporization chamber and provide feedback to the controller. The controller adjusts heater power in real-time based on this feedback, maintaining air temperature within a tight control range (±5°C) despite variations in heater output, airflow rate, or environmental conditions.
Solution Approach 2:
The system dynamically adjusts heater power parameters based on detected airflow rate and user inhalation patterns. By modulating the heating parameter in response to changing conditions, the system maintains consistent air temperature and vapor quality across varying operating conditions, achieving precise temperature control without requiring oversized heating capacity.
4Speed
If heating elements heat up quickly, then on-demand vaporization is achieved, but air flow may not be adequately heated due to large thermal mass
Solution Approach 1:
The system employs rapid, periodic heating cycles triggered by inhalation detection rather than sustained heating. The heater delivers intense thermal energy in brief pulses that are sufficient to heat the air and vaporize material during the short duration of user inhalation, overcoming the thermal mass issue by concentrating heating power in time-critical moments rather than distributing it over extended periods.
Solution Approach 2:
The system performs preliminary detection of inhalation events and prepositions the heater for immediate activation. When inhalation is detected, the heater is already in a state ready for rapid energy delivery, eliminating the lag between user action and effective heating. This preliminary detection and ready-state positioning ensures that even with thermal mass present, the air receives adequate heating during the brief operational window.
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 vaporizer achieves near-instant vaporization within seconds, minimizing energy loss and maintaining consistent vapor quality by quickly heating air to target temperatures, thus enhancing user satisfaction.
Implementation Method 1
Vaporization by the application of heat may be performed by convection, conduction, radiation and/or other means
Implementation Method 2
A portable convection vaporizer with a heater that generates turbulence in air flow
Implementation Method 3
regulates heater temperature using resistance measurements and thermocouples
Data Source
AI summary
On-demand, hand-held vaporizer that operates primarily by convection. The vaporizer is configured to permit very rapid (e.g., within a few seconds) heating of air drawn through an oven chamber to a predetermined or selectable vaporizing temperature to vaporize a material (e.g., loose leaf plant material, etc.) that is held in the oven chamber. The vaporizer provides efficient transfer of air being heated as well as rapid delivery of vaporizable material to a user.