Portable Convection Vaporizer With Rapid Air Temperature Control
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Solution Overview
Problem
Convection-based portable vaporizers require lengthy heat-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 temperature using a four-point resistance measurement and thermocouple feedback, minimizing thermal mass and energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If convection-based heating is used in portable vaporizers, then vaporization can be achieved, but the device requires lengthy heat-up and cool-down times
Solution Approach 1:
The heater is preheated to the target temperature before the user actually needs vaporization. The system maintains the heater at this elevated temperature ready state, so when the user activates the device, vaporization can begin immediately without waiting for heat-up time.
Solution Approach 2:
The heating element operates in periodic cycles, switching between active heating phases and standby maintenance phases. During active phases, the heater rapidly reaches target temperature; during standby phases, it maintains minimum operational temperature to reduce overall heat-up time for subsequent uses.
2Reliability
If the heater operates at elevated temperatures for extended periods, then vaporization function is maintained, but active ingredients are lost to the ambient environment
Solution Approach 1:
The heater is preheated to the exact target temperature before material is introduced or before the user activates the device. This eliminates the need for prolonged heating periods during actual use, as the heating phase is already complete, thereby preventing loss of active ingredients during extended elevated temperature operation.
Solution Approach 2:
The system uses sensors to detect when vaporization is needed and automatically activates the heater only at that moment. The heater serves itself by maintaining readiness through brief preheating cycles rather than continuous operation, reducing waste of active ingredients while ensuring vaporization function is available on-demand.
3Device complexity
If simple heating control is used, then device complexity is reduced, but air temperature control precision is insufficient
Solution Approach 1:
A temperature sensor continuously monitors the air temperature in the vaporization chamber and feeds this information back to the controller. The controller adjusts the heater power in real-time based on the feedback signal, maintaining precise temperature control. This closed-loop system achieves accurate temperature regulation without requiring overly complex control architecture.
Solution Approach 2:
The patent replaces complex mechanical temperature control mechanisms with an electronic sensing and control system. Instead of using mechanical thermostats or complex rheostats, the system uses electronic temperature sensors and electronic control circuitry to achieve precise temperature regulation, simplifying the overall device while improving precision.
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
Enables rapid vaporization within seconds, efficient heat transfer, and consistent vapor quality by maintaining precise air temperature control, enhancing user satisfaction and reducing material loss.
Implementation Method 1
a heater that generates turbulence in air flow, coupled with a controller that rapidly heats air to a predetermined temperature
Implementation Method 2
a heater that generates turbulence in air flow
Implementation Method 3
regulates temperature using a four-point resistance measurement and thermocouple feedback
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.