Slide Valve Sealing Mechanism for Liquid Injecting Containers

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Solution Overview

Problem

Refillable electronic cigarette users face unsatisfactory experiences due to tobacco liquid leakage during filling, as the injector is not fixedly coupled with the device, leading to leaks when the device is turned over.

Innovation Solution

A liquid injecting container with a housing, movable element, and elastic element, where the movable element moves axially to open or seal a liquid outlet when coupled or decoupled from the atomizer, preventing leakage by using a spring to drive the movable element back to a sealed position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the injector is not fixedly coupled with the electronic cigarette, then the filling operation is simple and flexible, but the tobacco liquid leaks when the device is turned over

Engineering Contradiction:
Improvefilling operation flexibilityVSAvoidliquid sealing reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs a movable element that can dynamically change position between open and closed states. The movable element is driven by an elastic element (spring) to automatically close the liquid outlet when the injector is detached, while allowing it to open during filling operations. This dynamic mechanism resolves the contradiction by adapting the sealing state based on operational needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic element (spring) provides self-service by automatically returning the movable element to the closed position when the injector is detached, without requiring additional user actions or complex control systems. The spring's elastic force naturally ensures the liquid outlet is sealed when not in use, maintaining reliability while preserving operational simplicity.

Inventive Principle:
Principle #25Self-service

2Reliability

If a movable element with elastic element is added to seal the liquid outlet, then liquid leakage is prevented, but the device complexity increases

Engineering Contradiction:
Improveliquid sealing reliabilityVSAvoidcontainer structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a movable element that acts as a flexible closure mechanism for the liquid outlet. This movable element can be a simple plug or valve structure that flexes or moves to open/close the outlet, providing effective sealing without requiring complex rigid mechanical systems. The flexibility of the closure mechanism reduces overall device complexity while maintaining sealing reliability.

Inventive Principle:
Principle #30Flexible shells and thin films

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 solution effectively prevents tobacco liquid leakage by ensuring the liquid outlet is sealed when not in use, enhancing user experience by maintaining a secure filling process.

Implementation Method 1

an elastic element in the open end, a first end of the elastic element abutting against a first end of the movable element

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

the elastic element is capable of driving the movable element to move axially to a second position where the at least one liquid outlet is sealed

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3124430B1Slide valve for liquid injecting container
Publication Date: 2020.02.19 SHENZHEN FIRST UNION TECH CO LTD
  • EP3124430B1 patent drawingFigure 1
  • EP3124430B1 patent drawingFigure 2
  • EP3124430B1 patent drawingFigure 3

AI summary

The present disclosure relates to a liquid injecting container for an atomizer. The atomizer includes a liquid injecting opening. The liquid injecting container includes a housing, a movable element, and an elastic element. The housing defines a reservoir for storing tobacco liquid. The housing has an open end. The open end defines at least one liquid outlet. The movable element is capable of moving along an axial direction of the open end. The elastic element abuts against the movable element. When the open end is coupled to the liquid injecting opening, the movable element is capable of moving axially to a first position where the at least one liquid outlet is opened. When the open end is detached from the atomizer, the elastic element is capable of driving the movable element to move axially to a second position where the at least one liquid outlet is sealed.