Electronic Cigarette Conductive Contact Sealing Structure

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Solution Overview

Problem

The existing electronic cigarette conductive contact structures are not adequately sealed, allowing tobacco tar to leak into the battery assembly, causing corrosion and short circuits due to the lack of effective sealing between the atomizer and the battery assembly.

Innovation Solution

An installation structure for the conductive contact of an electronic cigarette comprising a receiving groove with a conductive contact that includes a first contact, a second contact, an insulating part, and a sealing part, where the sealing part is designed to elastically abut against both the insulating and first contacts to seal gaps, utilizing sealing rings and a conical spring for enhanced sealing performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple conductive contact structure is used, then the device complexity is reduced, but the sealing performance deteriorates allowing tobacco tar to penetrate into the battery assembly

Engineering Contradiction:
Improveconductive contact structureVSAvoidsealing performance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The conductive contact structure is divided into multiple functional components: a conductive contact assembly with first and second contacts, an insulating part with upright post and chassis, and a sealing part with first and second sealing rings. This segmentation allows each component to perform its specific function while collectively achieving both electrical connectivity and sealing performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The insulating part acts as an intermediary component between the first and second contacts, providing both electrical insulation and structural support. The sealing part serves as an intermediary element that fills and seals the gap between the conductive contact assembly and the atomizing assembly, preventing tobacco tar penetration while maintaining structural integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the conductive contact structure is made more complex with additional sealing components, then the sealing performance is improved, but the device complexity increases

Engineering Contradiction:
Improvesealing performanceVSAvoidconductive contact structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The insulating part and sealing part are integrated into a unified conductive contact assembly that is installed as a single unit in the receiving groove. The insulating part's upright post and chassis are combined with the sealing rings to form a cohesive structure that simultaneously provides insulation, sealing, and mechanical support functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The insulating part serves multiple functions: it provides electrical insulation between contacts, structural support for the sealing rings, and positioning within the receiving groove. The sealing part not only seals gaps but also fills voids and prevents corrosion. This multi-functionality reduces the need for separate dedicated components.

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

3Reliability

If sealing components are added to prevent tobacco tar leakage, then the reliability is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveprotection against corrosion and short circuitsVSAvoidassembly process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The first and second sealing rings are pre-installed onto the insulating part and conductive contacts during the assembly process before final installation into the receiving groove. This preliminary action ensures proper positioning and sealing configuration, simplifying the overall manufacturing process while maintaining reliable sealing performance.

Inventive Principle:
Principle #10Preliminary action

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 proposed structure significantly improves the oil-proof performance of the conductive contact, preventing tobacco tar from entering the battery assembly and reducing the risk of corrosion and short circuits, thereby enhancing the reliability and longevity of electronic cigarette components.

Implementation Method 1

the sealing part is partially sleeved on the insulating part and elastically abuts against the first contact, and the sealing part is partially sleeved on the second contact and elastically abuts against the insulating part

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3628179B1Installation structure of conductive contact and electronic cigarette having same
Publication Date: 2024.03.20 SHENZHEN IVPS TECH CO LTD
  • EP3628179B1 patent drawingFigure 1
  • EP3628179B1 patent drawingFigure 2~3
  • EP3628179B1 patent drawingFigure 4

AI summary

The invention discloses an installation structure of a conductive contact of an electronic cigarette and an electronic cigarette, wherein the installation structure of the conductive contact of the electronic cigarette comprises an electronic cigarette body provided with a receiving groove and a conductive contact which is installed in the receiving groove and is exposed to an opening of the receiving groove at one end thereof. The conductive contact comprises a first contact, a second contact, an insulating part and a sealing part provided with an installation hole, and the second contact is partially received in the installation hole; the insulating part is sleeved on the second contact and is partially received in the installation hole to separate the first contact from the second contact; the sealing part is partially sleeved on the insulating part and elastically abuts against the first contact, and the sealing part is partially sleeved on the second contact and elastically abuts against the insulating part. In this embodiment, the sealing part seals the gap between the insulating part and the first contact and the gap between the insulating part and the second contact to improve the oil-proof performance of the conductive contact.