Ultrasonic Atomizer Vertical Piezo Orientation
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Solution Overview
Problem
Existing electronic cigarette atomizers face issues such as high energy inefficiency, burnt flavor due to heating wires, and tobacco tar leakage, with poor smoking taste and rapid heating leading to scorching of components.
Innovation Solution
An ultrasonic atomizer design featuring a piezoelectric ceramic piece vertically integrated within an outer sleeve, with a liquid storage body made of tobacco tar absorption material, utilizing ultrasonic waves to atomize liquid and improve atomization efficiency, preventing excessive liquid accumulation and leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating wires are used to heat tobacco tar, then the atomization function is achieved, but the heating wires are scorched easily and produce burnt flavor
Solution Approach 1:
The patent replaces the thermal heating system (heating wires) with an ultrasonic mechanical vibration system. The piezoelectric ceramic piece generates ultrasonic vibrations that directly atomize the liquid tobacco tar through mechanical energy, eliminating the need for high-temperature heating and thus preventing scorching and burnt flavor.
Solution Approach 2:
The patent changes the operating parameters from high temperature (thermal field) to high frequency vibration (mechanical field). The ultrasonic oscillation operates at frequencies typically above 20kHz, creating cavitation and mechanical shear forces that atomize liquid without thermal degradation.
2Productivity
If high temperatures are produced by heating wires, then atomization is achieved, but the electronic cigarette becomes hot and energy efficiency is low
Solution Approach 1:
The patent substitutes thermal energy conversion with mechanical energy conversion. The piezoelectric ceramic directly converts electrical energy to mechanical ultrasonic vibrations, which atomize the liquid through cavitation and shear forces, bypassing the inefficient thermal heating process and reducing energy loss.
Solution Approach 2:
The ultrasonic vibrations induce rapid phase transitions in the liquid through cavitation (formation and collapse of vapor bubbles), creating fine droplets directly. This phase transition mechanism is more energy-efficient than gradual heating and evaporation.
3Productivity
If heating wires are used, then atomization is achieved, but the atomizers are prone to tobacco tar leakage
Solution Approach 1:
The patent replaces thermal processing with mechanical ultrasonic processing. The ultrasonic vibrations create controlled atomization through cavitation and mechanical shear, preventing the uncontrolled heating and carbonization that leads to leakage in traditional heating systems.
Solution Approach 2:
The patent employs mechanical vibration at ultrasonic frequencies to atomize the liquid tobacco tar. The high-frequency vibrations create cavitation bubbles and shear forces that break up the liquid into fine droplets, achieving reliable atomization without the thermal degradation and leakage associated with heating wires.
4Device complexity
If the piezoelectric ceramic piece is horizontally placed, then the structure is simple, but liquid accumulates on the atomization surface causing slow start
Solution Approach 1:
The patent introduces asymmetric positioning of the piezoelectric ceramic piece, placing it vertically rather than horizontally. This asymmetric orientation, combined with the liquid storage body positioned below, creates effective gravity-driven liquid supply to the atomization surface, preventing accumulation and ensuring rapid start-up.
Solution Approach 2:
The patent changes the orientation of the piezoelectric ceramic piece from horizontal to vertical, utilizing the vertical dimension for gravity-assisted liquid flow. This dimensional change ensures liquid continuously feeds the atomization surface without accumulation, solving the slow start problem while maintaining structural simplicity.
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 ultrasonic atomizer enhances energy efficiency, prevents tobacco tar leakage, and improves smoking taste by using ultrasonic waves to atomize tobacco tar, ensuring a stable and efficient atomization process.
Implementation Method 1
the piezoelectric ceramic piece atomizes the liquid in the liquid storage body
Implementation Method 2
an electrode electrically connected with an external power supply for driving oscillation of the piezoelectric ceramic piece
Implementation Method 3
the liquid storage body communicates with the liquid storage cavity and is used for adsorbing liquid in the liquid storage cavity
Data Source
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AI summary
The present invention discloses an ultrasonic atomizer and electronic cigarette. The ultrasonic atomizer comprises a liquid storage cavity and a piezoelectric ceramic piece both are provided in an outer sleeve; the plane where the piezoelectric ceramic piece is located is parallel to the axial line of the outer sleeve; at least one surface of the piezoelectric ceramic piece is in contact with a liquid storage body; the liquid storage body communicates with the liquid storage cavity; and an atomization surface of the piezoelectric ceramic piece communicates with an air passage. In the present invention, the piezoelectric ceramic piece is vertically provided in the outer sleeve of the atomizer, thereby solving the effectively solving the problem of slow start of the atomizer resulting from the accumulation of excessive liquid on the atomization surface of the piezoelectric ceramic piece, and the problem that the existing atomizer of electronic cigarette is prone to tobacco tar leakage is also solved.