Vaporizer Pod and Heating Unit Separation for Leak-Free Replacement

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Solution Overview

Problem

Existing vaporizing devices require simultaneous replacement of pods and heating units, leading to inefficient disposal and recycling due to the longer lifespan of heating units made from difficult-to-recycle materials.

Innovation Solution

A heating unit and pod configuration that allows for easy, removable connection, featuring a twisted wick for liquid transfer and a duckbill valve for pressure equalization, ensuring separate replacement and recycling of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the heating unit and pod are connected together permanently, then the device structure is simplified, but the heating unit cannot be replaced separately and recycled efficiently

Engineering Contradiction:
Improvedevice structureVSAvoidcomponent replaceability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The device is divided into two separable components: a reusable heating unit and a disposable pod. The heating unit contains the heating element, support body, and conduit, while the pod contains only the liquid reservoir. This segmentation allows the heating unit to be replaced separately for recycling while the pod is discarded, resolving the contradiction between structural simplicity and component replaceability.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the heating unit is made of durable materials for long lifespan, then the heating unit reliability is improved, but the materials become difficult to recycle

Engineering Contradiction:
Improveheating unit lifespanVSAvoidrecyclability
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By separating the durable heating unit from the disposable pod, the heating unit can be constructed from reliable, long-lasting materials (heating element, support body, conduit) that are designed for recycling. The pod, containing only the liquid reservoir, is made from easily recyclable or disposable materials. This segmentation resolves the contradiction between durability and recyclability.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the pod and heating unit are replaced together, then the device simplicity is maintained, but waste is increased due to replacing functional heating units

Engineering Contradiction:
Improvereplacement simplicityVSAvoidmaterial waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The device is segmented into a reusable heating unit and a disposable pod, allowing users to replace only the depleted pod while retaining the functional heating unit. This resolves the contradiction between operational simplicity and material waste by enabling selective replacement of only the consumable component.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If a removable connection is designed between pod and heating unit, then component separation is enabled, but the connection reliability may be compromised

Engineering Contradiction:
Improvecomponent separabilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

A conduit with a removable connection interface acts as an intermediary between the pod and heating unit. The conduit includes a connection portion that can be coupled to the pod and disconnected when needed. This intermediary structure enables both removable connection for component separation and maintains connection reliability during use through proper mechanical coupling design.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables efficient, leak-proof connection and separation of heating units and pods, facilitating easy disposal and recycling while maintaining uniform liquid conveyance and preventing leakage.

Implementation Method 1

a twisted wick arranged in the conduit to transfer the liquid from the pod to the heating member

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the twisted wick allows air bubbles to enter the replaceable pod, thereby allowing pressure equalization

Methodology Applied
Scientific EffectPressure equalization:

Implementation Method 3

a heating member for heating a liquid arranged in the support body

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP4649843A1Heating unit for a vaporizing device, pod for the containment of liquid for a vaporizing device and system comprising the heating unit and the pod
Publication Date: 2025.11.19 JT INTERNATIONAL SA
  • EP4649843A1 patent drawingFigure 1
  • EP4649843A1 patent drawingFigure 2
  • EP4649843A1 patent drawingFigure 3

AI summary

A heating unit (30) for a vaporizing device (1) comprising a support body (31) removably connected to a main body (2) of a vaporizing device (1), a heating member (32), a conduit (33) connected to a pod (10) for the containment of the liquid to deliver liquid to the heating member (32), a twisted wick (35) arranged in the conduit (33) to transfer the liquid from the pod (10) to the heating member (32); the pod (10) for the containment of liquid comprising a housing (11) removably connected to the heating unit (30), the housing (11) comprising a reservoir (12) for the liquid, a duckbill valve (14) connected to the housing (11) and arranged at the aperture (13) thereof being switchable between a closed configuration to impede the exit of the liquid, when the housing (11) is decoupled from the heating unit (30), and an open configuration to allow the exit of the liquid, when the housing (11) is coupled to the heating unit (30), one blocking element (25) arranged to maintain the duckbill valve (14) in position.