Magnetic Sealing Plug for Electronic Cigarette Atomizer

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Solution Overview

Problem

The existing assembly mode of atomizing devices in electronic cigarettes, which relies on a latching fit for connecting the atomizer to the power supply, often results in poor contact due to wear over time, shortening the device's service life.

Innovation Solution

The atomizing device incorporates a magnetic attraction mechanism using a sealing plug with a magnetic attraction surface, which securely connects the atomizing device to the power supply device, eliminating the need for a conventional latching structure and reducing wear-related failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a latching fit assembly mode is used to connect the atomizing device to the power supply device, then the structure is simple and easy to manufacture, but the contact between components deteriorates over time due to wear, shortening service life

Engineering Contradiction:
Improveassembly simplicityVSAvoidcontact stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces the mechanical latching fit connection with a magnetic field-based connection. The magnetic connection member in the power supply device interacts with the magnetic attraction surface on the sealing plug through magnetic force, eliminating mechanical contact and wear between the atomizing device and power supply device, thereby maintaining stable connection over time while preserving assembly simplicity

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

2Device complexity

If a latching fit structure is used for connecting components, then the device complexity is low, but the service life is shortened due to wear of engaged snaps

Engineering Contradiction:
Improveconnection structure complexityVSAvoidservice life
Core Design Contradiction:
Device complexityVSDuration of action of moving object

Solution Approach 1:

The patent substitutes the mechanical latching structure with a magnetic field-based connection system. The magnetic connection member and magnetic attraction surface create a non-contact magnetic field interaction that maintains connection stability without wear, extending service life while keeping the connection structure simple and easy to implement

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

3Ease of operation

If the sealing plug is made detachable for liquid injection, then the ease of operation is improved, but the connection reliability between atomizing device and power supply may be compromised

Engineering Contradiction:
Improveliquid injection convenienceVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The sealing plug is designed to perform multiple functions: it seals the liquid injection channel to prevent leakage, provides a magnetic attraction surface for magnetic connection to the power supply device, and allows detachable removal for liquid injection. This multi-functionality ensures both operational convenience for liquid refilling and reliable magnetic connection stability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The detachable sealing plug incorporates a magnetic connection mechanism that replaces traditional mechanical locking structures. The magnetic field-based connection maintains reliable attachment between the detachable sealing plug and power supply device, ensuring connection stability is not compromised by the detachable design needed for liquid injection

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

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 magnetic connection ensures a stable and long-lasting connection between the atomizing device and the power supply, extending the electronic cigarette's service life and simplifying its structure, while also preventing atomizing liquid leakage and improving user experience by reducing airflow noise.

Implementation Method 1

The magnetic element and the magnetic attraction surface are connected to each other under a magnetic attraction, such that the atomizing device is coupled to the power supply device

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP3718420B1Atomizing device and electronic cigarette having the same
Publication Date: 2021.06.23 MVH I INC
  • EP3718420B1 patent drawingFigure 1
  • EP3718420B1 patent drawingFigure 2
  • EP3718420B1 patent drawingFigure 3

AI summary

The present disclosure relates to an atomizing device and an electronic cigarette provided with the atomizing device. The atomizing device includes a liquid storage housing and a sealing plug, and the liquid storage housing is provided with a liquid storage chamber and a liquid injection channel connecting the liquid storage chamber and the external environment. The sealing plug is detachably inserted into the liquid injection channel to open or seal the liquid storage chamber. An end of the sealing plug away from the liquid storage chamber forms a magnetic attraction surface with magnetism.