Electronic Cigarette Integral Mouthpiece Airtightness

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Solution Overview

Problem

Existing electronic cigarettes with detachable mouthpieces suffer from loose connections and air leakage due to threaded or snap joints, leading to poor airtightness, e-liquid spillage, and safety hazards from accidental ingestion by children.

Innovation Solution

An electronic cigarette design with an integral mouthpiece and vaporization tube, featuring a telescoping structure and airflow sealer to ensure airtightness and secure attachment, eliminating the need for threaded connections or snap joints.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If threaded connection or snap joints are used to connect mouthpiece to vaporization tube, then the mouthpiece can be detached for cleaning or replacement, but the connection becomes prone to abrasion and loosening, causing air leakage and poor airtightness

Engineering Contradiction:

Improvedetachability of mouthpieceVSAvoidconnection stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The device is divided into separable modules (mouthpiece assembly, vaporization tube, battery module) that can be detached for cleaning or replacement while maintaining connection stability through integrated design features

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mouthpiece is nested within the vaporization tube assembly with telescoping sections that slide into each other, creating a stable nested structure that maintains airtightness while allowing detachment

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of manufacture

If threaded connection or snap joints are used to connect mouthpiece to vaporization tube, then assembly is simplified, but the connection deteriorates over time, leading to mouthpiece loosening or falling off

Engineering Contradiction:

Improveassembly simplicityVSAvoidmouthpiece attachment stability

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The mouthpiece and vaporization tube are merged into an integrated assembly where the mouthpiece is formed as part of the vaporization tube structure, eliminating separate connection components and their associated failure modes

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The airtight seal is pre-configured through the integrated design of the vaporization tube and mouthpiece, with sealing structures built-in during manufacturing rather than relying on connection components that may deteriorate

Inventive Principle:

Principle #10Preliminary action

3Ease of repair

If detachable connection is used, then maintenance and cleaning are easier, but air leakage occurs due to poor airtightness, affecting vapor flow and causing e-liquid spillage

Engineering Contradiction:

Improvecleaning accessibilityVSAvoidairflow airtightness

Core Design Contradiction:

Ease of repairVSReliability

Solution Approach 1:

The device is segmented into removable sections that can be detached for cleaning while maintaining airtightness during use through integrated sealing structures

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A dedicated sealing structure acts as an intermediary element between the mouthpiece and vaporization tube, ensuring airtightness while allowing for maintenance and cleaning operations

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If detachable mouthpiece is used, then device modularity is improved, but safety hazard increases due to risk of accidental ingestion by children

Engineering Contradiction:

Improvedevice modularityVSAvoidingestion safety risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The mouthpiece is merged with the vaporization tube to form an integrated assembly that is less likely to be accidentally detached or ingested, while still allowing controlled disassembly for maintenance

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Safety features are built into the integrated design from the outset, preventing accidental detachment before use, while maintaining the ability to deliberately disassemble for cleaning or replacement

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10455860B2Electronic cigarette with integral mouthpiece

Publication Date: 2019.10.29 LIN GUANGRONG

AI summary

An electronic cigarette with an integral mouthpiece, comprising a vaporization assembly (1) and a battery module (2) connected mutually. The vaporization assembly (1) comprises a mouthpiece (11) with an opening, a vaporization tube (12), an outer ornamental sleeve (13), a connector (14) and a vaporizer (15); wherein the mouthpiece (11) is integrated with the vaporization tube (12), and the vaporization tube (12) and the connector (14) are telescoped within the outer ornamental sleeve (13); the vaporizer (15) is telescoped into the vaporization tube (12) in a detachable manner. The connector (14) is located at one end of the outer ornamental sleeve (13) and connected to the battery module (2) in a detachable manner; an airflow sealer (16) is provided between the integral inner wall of the mouthpiece (11) and the vaporization tube (12) and the outer wall or the periphery of the end portion of the vaporizer (15).