Angled Ultrasonic Atomization Sheet for Electronic Cigarette

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Solution Overview

Problem

Existing ultrasonic atomization type electronic cigarettes face issues such as slow smoke emission, hand scalding due to high temperatures, frequent liquid leakage, poor key switch operation, and damage from shattered liquid guide bodies, leading to a poor user experience.

Innovation Solution

The ultrasonic atomization sheet is angled within the electronic cigarette housing to prevent immersion in liquid, the atomizer is enclosed to avoid direct contact with the housing, a dual-layer liquid guide system is implemented to prevent shattering and improve liquid guidance, and a larger key switch area is provided for easier operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the ultrasonic atomization sheet is arranged perpendicular or parallel to the length direction of the electronic cigarette, then the structure is simple, but the atomization sheet easily immerses in cigarette liquid resulting in slow smoke emission and poor user experience

Engineering Contradiction:

Improvesmoke emission speedVSAvoidatomization sheet arrangement

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by arranging the ultrasonic atomization sheet at an oblique angle (not perpendicular or parallel) to the length direction of the electronic cigarette. This asymmetric arrangement prevents the atomization sheet from immersing in cigarette liquid while maintaining simple structural design, thereby improving smoke emission speed without significantly increasing device complexity.

Inventive Principle:

Principle #4Asymmetry

2Object-affected harmful factors

If the atomizer is entirely exposed for direct combination with battery assembly, then the structure is simple, but the atomizer is easily damaged and user's hand is scalded by high temperature

Engineering Contradiction:

Improvehand scalding and damage riskVSAvoidatomizer enclosure structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies nesting by placing the atomizer inside the electronic cigarette housing rather than exposing it externally. The atomizer is nested within the housing structure, which provides thermal isolation and protection. This nested arrangement reduces hand scalding and damage risks while maintaining relatively simple overall device structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If a single liquid guide layer is used in the liquid guide body, then the structure is simple, but the liquid guide body is easily shattered by long-time high-frequency oscillation causing safety issues and poor smoke mouthfeel

Engineering Contradiction:

Improveliquid guide body durabilityVSAvoidliquid guide body structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies composite materials by using a multi-layer liquid guide body structure consisting of different material layers. This composite structure enhances the durability and resistance to high-frequency oscillation shattering compared to a single-layer design. The layered composite construction improves reliability while maintaining reasonable structural complexity.

Inventive Principle:

Principle #40Composite materials

4Ease of operation

If a small key switch is used on the key switch board, then the device size is compact, but the user experience is poor due to finger pain and low operation reliability

Engineering Contradiction:

Improvekey switch operabilityVSAvoidkey switch area

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The patent applies parameter changes by increasing the area size parameter of the key switch from a small compact design to a larger surface area design. This parameter change makes the key switch easier to press with the finger, improving ease of operation and reducing finger pain, while the increase in area is controlled to maintain reasonable device compactness.

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 design enhances smoke emission speed and volume, reduces hand scalding and damage risks, improves liquid guidance, and provides a more reliable and comfortable user experience.

Implementation Method 1

High temperature is generated by the cavitation effect when the ultrasonic atomization sheet operates

Methodology Applied

Scientific EffectCavitation effect: Cavitation

Implementation Method 2

the ultrasonic atomization sheet operates

Methodology Applied

Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Data Source

PatentUS11528935B2Obliquely arranged ultrasonic atomization sheet of an atomizer in an electronic cigarette housing

Publication Date: 2022.12.20 CHINA TOBACCO HUNAN IND CORP

AI summary

An ultrasonic atomization type electronic cigarette includes an ultrasonic atomizer having an ultrasonic atomization sheet, an electronic cigarette housing, an upper cover assembly, and a locking structure. The angle α between the ultrasonic atomization sheet and the central axis of the electronic cigarette is 5° to 85°, preferably 15° to 55°. The housing is provided with an air inlet groove. A first support in the housing includes a receiving cavity for receiving the ultrasonic atomizer. The upper cover assembly may be used for opening the receiving cavity, and the locking structure may be used for locking the upper cover assembly. A liquid guide structure in the atomizer may include a liquid guide body in which a side of a first liquid guide layer is sandwiched between a side of a second liquid guide layer and an ultrasonic atomization surface.