Electronic Vaporizer Power Control Circuit Temperature Feedback

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Solution Overview

Problem

Existing electronic cigarettes and vaporizers face safety and performance issues due to excessive temperature breakdown of flavorants and fluid components, leading to harmful or unpleasant vapor production, especially when the fluid supply is low or the power setting is high, which can also damage the wicking material.

Innovation Solution

An electronic vaporizer with a power control circuit that regulates the electrical power to the heating element based on its operating temperature and a temperature setting, using a machine-readable indicia to convey reference information such as resistance and boiling point data to maintain safe operating temperatures and prevent overheating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the power setting is increased to provide hotter vapor, then vapor temperature is improved, but fluid components break down into harmful compounds

Engineering Contradiction:
Improvevapor temperatureVSAvoidbreakdown of fluid components
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent implements temperature feedback control by continuously monitoring the heating element temperature and adjusting power delivery accordingly. The system uses temperature sensors to detect actual heating element temperature and modulates power output to maintain temperature within a safe range, preventing fluid breakdown while delivering adequate vapor heat.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent dynamically changes power delivery parameters based on operating conditions. It adjusts voltage and current to the heating element in real-time, modifying power parameters to prevent excessive temperature that would cause fluid decomposition, while still providing sufficient heat for vaporization.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the power setting is high to simulate smoking, then vapor production is improved, but the coil temperature climbs excessively causing flavorant breakdown

Engineering Contradiction:
Improvevapor productionVSAvoidcoil temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The system continuously monitors coil temperature and provides feedback to the power control circuit. When temperature approaches unsafe levels, the system automatically reduces power delivery to prevent flavorant breakdown, maintaining optimal temperature for consistent vapor production without excessive heat.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent employs dynamic power adjustment rather than fixed power settings. The system adapts power delivery in real-time based on coil temperature, fluid flow conditions, and user inhalation patterns, optimizing vapor production while preventing temperature-related degradation.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If the fluid supply is insufficient, then vapor production is reduced, but the coil temperature rises significantly causing potential damage

Engineering Contradiction:
Improvefluid supplyVSAvoidcoil temperature
Core Design Contradiction:
Quantity of substanceVSTemperature

Solution Approach 1:

The temperature monitoring system detects when coil temperature rises due to insufficient fluid supply and provides feedback to reduce or shut off power delivery. This prevents the coil from reaching temperatures that would damage the atomizer or wicking material, even when fluid levels are low.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system takes preliminary action by monitoring fluid levels and anticipating temperature problems before they occur. When fluid supply drops below adequate levels, the system preemptively adjusts power delivery to prevent excessive coil heating and potential damage to heating components.

Inventive Principle:
Principle #9Preliminary anti-action

4Stability of the object's composition

If existing control methods are used to maintain constant vapor production, then vapor consistency is improved, but temperature control is insufficient allowing harmful breakdown

Engineering Contradiction:
Improvevapor production consistencyVSAvoidheating element temperature
Core Design Contradiction:
Stability of the object's compositionVSTemperature

Solution Approach 1:

The patent implements dual feedback loops: one for vapor production consistency and another for temperature control. The temperature feedback takes priority, adjusting power delivery to maintain safe operating temperatures while still providing consistent vapor output through coordinated control of heating power and fluid flow.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes multiple parameters simultaneously - power delivery, temperature setpoints, and fluid flow rates - to achieve both consistent vapor production and safe temperature control. This multi-parameter adjustment allows the system to maintain vapor consistency without sacrificing temperature safety.

Inventive Principle:
Principle #35Parameter changes

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 solution ensures consistent and safe vapor production by preventing excessive temperature, maintaining flavor quality, and protecting the device from damage, thereby enhancing user experience and safety.

Implementation Method 1

a heating element for heating a fluid to produce a vapor; a power source to provide electrical power to the heating element for heating the fluid

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a power control circuit configured to regulate a supply of electrical power from the power source to the heating element based at least in part on an operating temperature of the heating element

Methodology Applied
Scientific EffectTemperature sensing through resistance measurement: Electrical Resistance

Data Source

PatentUS12133296B2Electronic vaporizer having temperature sensing and limit
Publication Date: 2024.10.29 EVOLV LLC
  • US12133296B2 patent drawing
  • US12133296B2 patent drawing
  • US12133296B2 patent drawing

AI summary

An electronic vaporizer including a heating element for heating a fluid to produce a vapor; a power source to provide electrical power to the heating element for heating the fluid; and a power control circuit configured to regulate a supply of electrical power from the power source to the heating element based at least in part on an operating temperature of the heating element and a temperature setting to prevent the operating temperature of the heating element from exceeding the temperature setting.