Replaceable Cartridge Sealing for Oil Leakage Prevention in E-Cigarettes

Solution Overview

Problem

Existing electronic cigarettes are resource-intensive and costly due to their disposable nature and propensity for oil leakage, particularly in reusable models which are bulky and difficult to carry.

Innovation Solution

An oil leakage proof electronic cigarette with a replaceable atomizing core, featuring a detachable cartridge and power supply unit, where the cartridge is sealed by silicone end covers to prevent leakage, and a protective member on the cigarette holder to prevent oil from entering, along with an airflow switch to control power to the atomizing component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If reusable electronic cigarette is designed, then resource waste is reduced, but device size increases and portability deteriorates

Engineering Contradiction:

Improveresource wasteVSAvoiddevice size

Core Design Contradiction:

Loss of substanceVSVolume of moving object

Solution Approach 1:

The electronic cigarette is divided into separate modules: a reusable power supply unit and a replaceable cartridge containing the atomizing assembly and oil reservoir. This segmentation allows the power supply unit to be reused multiple times while only the smaller cartridge needs replacement, reducing overall resource waste while maintaining a compact form factor for the portable cartridge component.

Inventive Principle:

Principle #1Segmentation

2Loss of substance

If reusable electronic cigarette is designed, then resource waste is reduced, but oil leakage risk increases

Engineering Contradiction:

Improveresource wasteVSAvoidoil leakage prevention

Core Design Contradiction:

Loss of substanceVSReliability

Solution Approach 1:

The cartridge is sealed with a flexible seal ring that creates an oil-tight barrier between the cartridge and the cigarette holder. This flexible sealing mechanism effectively prevents oil leakage while allowing the cartridge to be easily replaced, thus reducing resource waste without compromising reliability.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

A seal ring acts as an intermediary element between the cartridge and the cigarette holder, creating an isolated sealed space that prevents oil from leaking into the cigarette holder while enabling the reusable design.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Volume of moving object

If integrated structure is used, then device size is reduced and portability is improved, but resource waste increases

Engineering Contradiction:

Improvedevice sizeVSAvoidresource waste

Core Design Contradiction:

Volume of moving objectVSLoss of substance

Solution Approach 1:

The electronic cigarette is divided into separate modules: a reusable power supply unit and a replaceable cartridge containing the atomizing assembly and oil reservoir. This segmentation allows the power supply unit to be reused multiple times while only the smaller cartridge needs replacement, reducing overall resource waste while maintaining a compact form factor for the portable cartridge component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The design allows selective discarding of only the consumable cartridge portion while recovering and reusing the expensive power supply unit multiple times. This partial discarding strategy significantly reduces resource waste compared to complete disposal, while the cartridge remains compact and portable.

Inventive Principle:

Principle #34Discarding and recovering

4Loss of substance

If disposable electronic cigarette is used, then resource waste is reduced per unit, but usage cost increases

Engineering Contradiction:

Improveresource waste per unitVSAvoidusage cost

Core Design Contradiction:

Loss of substanceVSProductivity

Solution Approach 1:

The design allows selective discarding of only the consumable cartridge portion while recovering and reusing the expensive power supply unit multiple times. This partial discarding strategy significantly reduces resource waste compared to complete disposal, and the reusable power supply unit amortizes its cost over multiple cartridges, reducing overall usage cost.

Inventive Principle:

Principle #34Discarding and recovering

Solution Approach 2:

The electronic cigarette is divided into separate modules: a reusable power supply unit and a replaceable cartridge containing the atomizing assembly and oil reservoir. This segmentation allows the power supply unit to be reused multiple times while only the smaller cartridge needs replacement, reducing overall resource waste while maintaining a compact form factor for the portable cartridge component.

Inventive Principle:

Principle #1Segmentation

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 design allows for cost-effective reuse by preventing oil and smoke leakage, enhancing user safety and reducing waste through replaceable components and efficient airflow management.

Implementation Method 1

the heating coil is used to atomize the smoke oil

Methodology Applied

Scientific EffectAtomization:

Implementation Method 2

the heating coil is used to atomize the smoke oil

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 3

both the first end cover and the second end cover are in an interference-fit with the casing of the cartridge

Methodology Applied

Scientific EffectInterference fit:

Implementation Method 4

the oil-guiding cotton is used for guiding the smoke oil in the cartridge into the atomizing tube

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS11758943B2Oil leakage proof electronic cigarette with replaceable atomizing core

Publication Date: 2023.09.19 GD SIGELEI ELECTRONICS TECH CO LTD

AI summary

The present invention is applicable to the technical field of electronic cigarettes, which provides an oil leakage proof electronic cigarette with replaceable atomizing core, including a cigarette holder, a housing, and a cartridge and a power supply unit arranged in the housing; the cigarette holder is detachably arranged at one end of the housing; the end of the housing away from the cigarette holder is provided with an air inlet; the cartridge includes a casing of the cartridge, an atomizing assembly provided in the housing, and a first end cover and a second end cover provided at both ends of the casing of the cartridge. The second end cover is provided with a first electrode circuit board, and both the first end cover and the second end cover are provided with air-guiding hole structures.