Capsule E-Vapor Heating Control to Prevent Overheating Taste
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Solution Overview
Problem
Existing e-vapor devices face challenges in efficiently vaporizing pre-vapor formulations without overheating, leading to unpleasant tastes and inefficient use of the formulation.
Innovation Solution
The e-vapor device incorporates a hermetically-sealed capsule containing a pre-vapor formulation, a puncture device to access the formulation, a wick with a heater structure, and a mechanism to cease heating when a reference current level is reached, ensuring controlled vaporization and reducing overheating risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the heating element continuously heats the pre-vapor formulation, then the vapor generation is maintained, but overheating occurs causing unpleasant tastes and inefficient formulation use
Solution Approach 1:
The heating element operates periodically rather than continuously, with heating cycles interrupted by cessation periods. The controller activates the heating element to heat the pre-vapor formulation, then ceases heating when a reference current level is reached, creating a periodic heating pattern that prevents overheating while maintaining vapor generation over extended duration
Solution Approach 2:
The system incorporates feedback control through current monitoring. The controller detects the current level during heating and automatically ceases heating when the reference current level is reached, using this feedback signal to regulate heating duration and prevent overheating conditions that would cause unpleasant tastes
2Productivity
If the heating element operates at high power, then vaporization efficiency is improved, but the risk of overheating and unpleasant taste increases
Solution Approach 1:
The heating element operates in periodic cycles with high power during active heating phases, achieving efficient vaporization when needed, then ceases operation when the reference current level is reached, preventing the continuous high-power operation that would cause overheating and unpleasant taste
3Reliability
If the capsule is hermetically sealed, then formulation stability and contamination prevention are improved, but access to the formulation requires puncture mechanism adding device complexity
Solution Approach 1:
The capsule is hermetically sealed in advance before use, maintaining formulation stability and preventing contamination during storage and handling. The puncture mechanism is then activated only when needed to access the pre-vapor formulation, separating the formulation protection function from the access function
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
This design effectively vaporizes the pre-vapor formulation while minimizing overheating, ensuring consistent flavor and efficient use of the formulation, thereby enhancing user experience.
Implementation Method 1
the wire undergoes resistive heating to vaporize the pre-vapor formulation in the wick to produce a vapor
Implementation Method 2
a wick that is arranged in communication with the pre-vapor formulation
Data Source
AI summary
An e-vapor device may include a capsule, a mouthpiece configured to receive the capsule, and a vaporizer configured to engage with the mouthpiece to enclose the capsule therebetween. The capsule is configured to hold a pre-vapor formulation therein. The vaporizer is configured to pierce the capsule to access the pre-vapor formulation therein and to heat the pre-vapor formulation to generate a vapor. Additionally, the vaporizer may be configured to cease a heating of the pre-vapor formulation when a current in the heater structure is less than a reference level. Accordingly, the occurrence of an unpleasant taste resulting from overheating may be reduced or prevented.