Ultrasonic Atomizer Core Position-Limit Mechanism

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Solution Overview

Problem

Existing ultrasonic electronic cigarette atomizers face issues with liquid storage cotton falling off, unreliable electrical conductivity, and short service life due to high temperatures during welding, leading to poor user experience and contamination.

Innovation Solution

The ultrasonic electronic cigarette atomization core incorporates a position-limit mechanism to secure the liquid storage cotton, a stable conductive structure using copper nuts and wires to ensure reliable electrical connection, and a liquid absorber to prevent tobacco tar leakage, along with a secure assembly of the housing and front cover to maintain consistent operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the liquid storage cotton is directly placed in the liquid storage ring without a fixing structure, then the assembly is simple, but the liquid storage cotton easily falls off when the atomization core is pulled out, causing contamination and inconvenience

Engineering Contradiction:
Improveassembly simplicityVSAvoidliquid storage cotton retention
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The liquid storage ring is divided into an upper ring and a lower ring that are detachably connected, allowing the liquid storage cotton to be securely positioned between them. This segmentation enables both easy assembly and reliable retention of the liquid storage cotton.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The liquid storage cotton is nested between the upper and lower liquid storage rings, with the rings fitting together to form a complete structure. This nested arrangement secures the liquid storage cotton while maintaining assembly simplicity.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If the ultrasonic atomization sheet is compressed by an elastic conductive sheet to conduct electricity, then the electrical connection is achieved, but the compression effect must be weakened to avoid affecting oscillation amplitude, resulting in poor contact and unreliable conductivity

Engineering Contradiction:
Improveelectrical conductivityVSAvoidoscillation amplitude
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

A conductive gel is introduced as an intermediary substance between the elastic conductive sheet and the ultrasonic atomization sheet. The conductive gel enhances electrical conductivity while requiring minimal compression, thus preserving the oscillation amplitude of the atomization sheet.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The use of conductive gel changes the electrical contact parameters, allowing for better conductivity with reduced mechanical compression. This parameter change enables reliable electrical connection without compromising the atomization sheet's oscillation characteristics.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the electrode layers on the ultrasonic atomization sheet are connected to the power supply electrode by welding, then the electrical connection is secure, but the high temperature during welding causes depolarization and loss of high-frequency oscillation performance, shortening service life

Engineering Contradiction:
Improveelectrical connection stabilityVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The welding process is replaced with a mechanical connection system consisting of conductive gels and elastic conductive sheets. This substitution eliminates high-temperature exposure, preventing depolarization of the ultrasonic atomization sheet while maintaining secure electrical connection.

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

Solution Approach 2:

Conductive gels serve as intermediaries between the electrode layers and power supply electrodes, providing reliable electrical connection without requiring high-temperature welding. This intermediary approach preserves the ultrasonic atomization sheet's polarized structure and extends service life.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If the atomization core is pulled out when the ultrasonic atomization sheet is parallel to the length of the electronic cigarette, then the atomization core can be removed, but a small amount of tobacco tar is taken out of the liquid bin, causing leakage and staining

Engineering Contradiction:
Improveatomization core removalVSAvoidtobacco tar leakage
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

A liquid absorber is pre-positioned at the liquid outlet end of the liquid bin to absorb tobacco tar before the atomization core is removed. This preliminary action prevents tobacco tar leakage and staining during the removal process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The liquid absorber acts as an intermediary between the liquid bin and the external environment during atomization core removal. It captures and retains tobacco tar, preventing it from leaking out and staining the user's hands or surrounding areas.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 prevents liquid storage cotton from falling off, ensures reliable electrical conductivity, extends the service life of the atomization sheet, and maintains a clean and sanitary atomizer by preventing tobacco tar leakage, enhancing user experience and operational stability.

Implementation Method 1

the ultrasonic atomization sheet is fixed on the atomization seat through a silica gel seat... the ultrasonic atomization sheet operates stably

Methodology Applied
Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 2

the liquid storage cotton is disposed in the liquid storage ring, the liquid storage cotton is connected to an atomization surface of the ultrasonic atomization sheet through the liquid guide cotton

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP3656230B1Atomizing core and atomizer of ultrasonic electronic cigarette
Publication Date: 2022.05.11 CHINA TOBACCO HUNAN IND CORP
  • EP3656230B1 patent drawingFigure 1
  • EP3656230B1 patent drawingFigure 2
  • EP3656230B1 patent drawingFigure 3

AI summary

Disclosed are an ultrasonic electronic cigarette atomization core and an ultrasonic electronic cigarette atomizer. The atomization core comprises a housing (1), a front cover (2), an ultrasonic atomization sheet (3), a liquid storage cotton (4), and a liquid guide cotton (5), the housing (1) and the front cover (2) are fastened together to form a receiving cavity (6), the atomization sheet (3) is fixed in the receiving cavity (6), a liquid storage ring (7) is disposed in the receiving cavity (6), the liquid storage cotton (4) is disposed in the liquid storage ring (7) and connected to the atomization sheet (3) through the liquid guide cotton (5), and the outer lateral surface of the liquid storage cotton (4) is communicated with a liquid bin (42); and the atomization core further comprises a position-limit mechanism for preventing the liquid storage cotton (4) from falling off the liquid storage ring (7). The liquid storage cotton (4) is unlikely to fall off and reliably conducts electricity; the housing (1) and the front cover (2) are fixed securely, so the operation is stable, the amount of smoke is stable, and the assembly is convenient; tobacco tar leakage can be prevented after the atomization core is pulled out; the opening and closing of a liquid passing hole (421), the opening and closing of an air outlet passage, and the unlocking and locking of the atomization core can be controlled by means of the opening and closing of the liquid injection holes (422, 391, 361) in a linked manner; when tobacco tar is injected into the liquid bin (42), the liquid passing hole (421) is closed and the air outlet passage is cut off, so that the leakage of tobacco tar or immersion in tobacco tar is avoided, the atomizer is clean and sanitary, waste is avoided, and the cost is saved; the operation is simple, the atomization core is convenient to replace, the injection of the tobacco tar is convenient, and the user experience is good.