Cotton-free E-cigarette Liquid Storage Cup with Snap-fit Percolation

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Solution Overview

Problem

Existing cotton-free electronic cigarettes face challenges in preventing liquid leakage and ensuring smooth liquid supply due to insecure fixation methods between the liquid storage cup and percolation piece, which complicates assembly and reliability.

Innovation Solution

A liquid storage device with a cylindrical cup and a snap-fitted liquid percolation piece featuring locking members and supporting ribs, ensuring a secure engagement to prevent leakage and facilitate assembly, utilizing heat-resistant materials like plastic, fiber, or metal for the percolation piece.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional fixation method is used between the liquid storage cup and percolation piece, then the assembly process becomes complex, but the liquid leakage prevention and smooth liquid supply are compromised

Engineering Contradiction:
Improveliquid leakage preventionVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking members are integrated directly into the inner wall of the liquid outlet end of the storage cup, merging the fixation function into the existing structure. This eliminates separate fixation components and simplifies assembly while ensuring reliable liquid leakage prevention through the unified structural design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The inner wall of the liquid outlet end is segmented into multiple locking members distributed along the circumference, with each locking member independently engaging with the percolation piece. This segmentation provides multiple fixation points that prevent liquid leakage while maintaining a simple assembly process through modular engagement.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the liquid percolation piece is loosely fitted, then the assembly is easy, but liquid leakage occurs and liquid supply becomes unstable

Engineering Contradiction:
Improveliquid supply stabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking members are designed with elastic deformation capability, allowing them to dynamically adjust during assembly. The elastic material enables the locking members to deform during insertion and then recover to lock the percolation piece securely, providing both easy assembly and reliable liquid supply stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The physical state of the locking members changes from deformable (during assembly) to fixed (after locking). The elastic material properties allow the locking members to transition between these states, enabling easy insertion followed by secure locking that prevents liquid leakage and ensures stable liquid supply.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If multiple locking members are added to secure the percolation piece, then liquid leakage is prevented, but the device structure becomes more complex

Engineering Contradiction:
Improveconnection strengthVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking members serve multiple functions simultaneously: they provide structural support to the liquid outlet end, enable secure fixation of the percolation piece, and distribute mechanical stresses. This multi-functionality achieves strong connection reliability without adding separate dedicated fixation components, thus avoiding increased structural complexity.

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

Solution Approach 2:

The locking members are combined with the inner wall structure of the liquid outlet end, merging the fixation function into the existing structural framework. This integration provides strong connection strength through the locking mechanism while avoiding the need for separate fixation components that would increase structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9955732B2Liquid storage device for cotton-free electronic cigarette
Publication Date: 2018.05.01 LIN GUANGRONG
  • US9955732B2 patent drawing
  • US9955732B2 patent drawing
  • US9955732B2 patent drawing

AI summary

The present invention relates to a liquid storage device for a cotton-free electronic cigarette, comprising a liquid storage cup for storing cigarette liquid, and a liquid percolation piece having a plurality of liquid percolation holes; wherein the liquid storage cup has a cylindrical shape, an inner wall of a liquid outlet end of the liquid storage cup is provided with at least two locking members, the liquid percolation piece has a circular edge which engages with an internal circumferential surface of the liquid outlet end of the liquid storage cup, the liquid percolation piece is inserted into the liquid outlet end of the liquid storage cup and is passed through the at least two locking members to be locked. The liquid storage device ensures the smooth supply of cigarette liquid and prevents cigarette liquid leakage. The liquid storage device of the present invention can be easily and efficiently assembled.