E-Cigarette Leakproof Atomizer Assembly for Battery Short-Circuit Prevention

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Solution Overview

Problem

Conventional electronic cigarettes lack a leakproof device, resulting in condensed e-liquid permeating into the battery assembly and causing short circuits.

Innovation Solution

An electronic cigarette design incorporating an atomization assembly with a leakproof device comprising a piece of cotton wrapped around a heating wire, a limit cover, and seal rings to absorb and prevent e-liquid from flowing into the battery assembly, utilizing a groove on the primary support to collect condensed e-liquid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no leakproof device is installed in conventional electronic cigarettes, then the device structure is simple, but condensed e-liquid permeates into the battery assembly causing short circuits

Engineering Contradiction:

Improveprevention of short circuitVSAvoidstructure of atomization assembly

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The atomization assembly is segmented into multiple functional components: a limit cover with first and second seal rings, a base with a groove, and a piece of cotton. This segmentation allows each component to perform a specific function in the leakproof system, resolving the contradiction by creating a reliable multi-component seal structure rather than a single complex device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A piece of cotton is introduced as an intermediary absorbent material between the atomization chamber and the battery assembly. The cotton absorbs condensed e-liquid before it can reach the battery, acting as a mediator that prevents direct contact between e-liquid and the battery, thereby preventing short circuits while maintaining structural simplicity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If seal rings are added to prevent e-liquid leakage, then reliability improves, but manufacturing complexity increases

Engineering Contradiction:

Improvesealing performanceVSAvoidassembly process

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Multiple sealing functions are merged into a limited number of components. The first seal ring is integrated into the limit cover, and the second seal ring is integrated into the base. This merging approach provides reliable sealing while simplifying the assembly process compared to using multiple separate sealing components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Rubber seal rings are used to provide flexible sealing between rigid components. The elastic deformation of these thin film seals allows for easy assembly and disassembly while maintaining reliable sealing performance, thus improving ease of manufacture without compromising reliability.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If a groove is added to the primary support to collect condensed e-liquid, then reliability improves, but device complexity increases

Engineering Contradiction:

Improvee-liquid collectionVSAvoidstructure of primary support

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The primary support structure is given multiple functions: it provides structural support for the battery assembly and simultaneously includes an integrated groove for collecting and directing condensed e-liquid away from the battery. This multi-functionality approach improves reliability by adding e-liquid collection capability without significantly increasing device complexity, as the groove is formed as part of the existing support structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Effectively prevents e-liquid from entering the battery assembly, thereby preventing short circuits and ensuring reliable operation of the electronic cigarette.

Implementation Method 1

The piece of cotton is disposed on the base to absorb deposited e-liquid on the base

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the limit cover is disposed on the piece of cotton to absorb condensed e-liquid on the limit cover

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 3

The groove collects the condensed e-liquid of the atomization assembly, thus preventing the e-liquid from flowing into the battery assembly

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS11602171B2Electronic cigarette having leakproof device for preventing leakage of e-liquid

Publication Date: 2023.03.14 LIU TUANFANG

AI summary

An electronic cigarette including an atomization assembly and a base assembly. The atomization assembly is disposed on the battery assembly. The atomization assembly includes an e-liquid tank; a first seal ring; a limit cover; a second seal ring; a piece of cotton; a heating wire; a third seal ring; a seal plug; a base; a joint; an insulation sleeve; and a connection sleeve. The battery assembly includes a pair of electrodes; a magnet; a fourth seal ring; an indicator light; a secondary support; a pneumatic switch; a silicone sleeve; a primary support; a battery; a USB plate; a housing. The piece of cotton wraps the heating wire. The piece of cotton and the heating wire are disposed on the base. The limit cover is disposed on the piece of cotton. The first seal ring and the second seal ring are disposed on two ends of the limit cover.