Piezoelectric Ceramic Atomization in Electronic Cigarettes

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Solution Overview

Problem

Traditional electronic cigarettes face issues such as high temperatures leading to burnt tastes, hand or mouth scalding, tobacco tar leakage, and damage to internal components.

Innovation Solution

An electronic cigarette design featuring a piezoelectric ceramic piece that oscillates and heats tobacco materials, maintaining a temperature below 200 degrees Celsius to prevent burnt tastes and scalding, while eliminating tobacco tar leakage risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If electric heating wires are used to heat tobacco tar, then atomization is achieved, but temperature becomes too high causing burnt taste and peculiar smell

Engineering Contradiction:
Improveheating temperatureVSAvoidburnt taste
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the traditional electric heating wire (thermal conduction system) with an ultrasonic vibration system. The ultrasonic ceramic piece generates high-frequency mechanical vibrations that directly agitate and atomize the tobacco tar through cavitation and mechanical energy, eliminating the need for high-temperature heating and thus preventing burnt taste.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental heating parameter from high temperature (traditional electric heating) to low temperature with high mechanical energy (ultrasonic vibration). By using ultrasonic frequency vibrations instead of thermal energy, the system achieves atomization at temperatures below 200°C, avoiding the burnt taste problem while maintaining effective vaporization.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If electric heating material is used, then atomization is achieved, but hand scalding or mouth scalding occurs due to high temperature

Engineering Contradiction:
Improveheating temperatureVSAvoidscalding
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes the thermal conduction mechanism with ultrasonic mechanical vibration. The ultrasonic ceramic piece generates cavitation bubbles and mechanical shear forces that atomize the tobacco tar without requiring high temperatures, thus eliminating the scalding hazard to user's hand and mouth while maintaining effective atomization.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Temperature

If high temperature is used for atomization, then vaporization is achieved, but oral cavity is injured

Engineering Contradiction:
Improveatomization temperatureVSAvoidoral cavity injury
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent fundamentally changes the atomization mechanism from thermal vaporization to ultrasonic mechanical atomization. By using high-frequency vibrations and cavitation effects, the system achieves complete vaporization at low temperatures (below 200°C), preventing thermal injury to the oral cavity while ensuring sufficient aerosol generation for effective delivery.

Inventive Principle:
Principle #35Parameter changes

4Temperature

If high temperature is used, then atomization is achieved, but internal electronic components and battery are damaged

Engineering Contradiction:
Improveheating temperatureVSAvoidservice life
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The patent changes the energy input method from high-temperature thermal energy to low-temperature mechanical energy (ultrasonic vibration). This temperature reduction protects the battery and electronic components from thermal degradation, extending the device's service life while maintaining effective atomization performance.

Inventive Principle:
Principle #35Parameter changes

5Temperature

If traditional electric heating wires are used, then atomization is achieved, but tobacco tar leakage occurs

Engineering Contradiction:
Improveheating temperatureVSAvoidtobacco tar leakage
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the thermal heating system with an ultrasonic mechanical vibration system. The ultrasonic ceramic piece generates intense local vibrations and cavitation that effectively atomize and vaporize tobacco tar without the need for high temperatures that cause leakage. The mechanical energy directly disrupts the tar structure, preventing leakage while achieving complete vaporization.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 solution effectively atomizes tobacco materials without producing burnt tastes or scalding, reduces the risk of tobacco tar leakage, and extends the lifespan of the electronic cigarette by preventing overheating damage.

Implementation Method 1

a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell, the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

the piezoelectric ceramic piece is electrically connected with the power supply... After the power supply is turned on, the tobacco material starts to be oscillated and heated under the action of the piezoelectric ceramic piece

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS12213536B2Electronic cigarette
Publication Date: 2025.02.04 CHINA TOBACCO HUNAN IND CORP
  • US12213536B2 patent drawing
  • US12213536B2 patent drawing
  • US12213536B2 patent drawing

AI summary

An electronic cigarette, comprising a shell and a power supply installed in the shell, and the electronic cigarette further comprises a tobacco bin which is provided in the shell and communicates with the outside air, and a suction nozzle which communicates with the tobacco bin; and a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell, the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin, and the piezoelectric ceramic piece is electrically connected with the power supply. The electronic cigarette has a simple atomization mode and directly atomizes the tobacco material by means of the high frequency vibration and heat of the piezoelectric ceramic.