Heater Assembly Wick Alignment and Retention for Nicotine Pods

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing nicotine e-vaping devices face challenges in efficiently assembling and securing the heater assembly for nicotine pod assemblies, which affects the consistent vaporization of nicotine pre-vapor formulations.

Innovation Solution

A specialized apparatus and method are introduced that include a wick retainer, cutter, and rotatable wick feed mechanism to align and secure the wick within the heater assembly, ensuring proper alignment and compression for effective vaporization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual assembly methods are used for heater assembly, then device complexity is reduced, but manufacturing precision and productivity deteriorate

Engineering Contradiction:
Improvewick alignment precisionVSAvoidassembly apparatus complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The assembly apparatus is divided into distinct functional modules: a holder for securing the heater assembly, a rotatable wick feed mechanism for precise wick delivery, a cutter for wick trimming, and a compression mechanism. Each module independently performs a specific function, enabling precise wick alignment and assembly while maintaining manageable system complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wick feed mechanism automatically rotates to advance the wick to the required position, and the cutter automatically trims the wick to the correct length. These self-service features eliminate the need for manual positioning and trimming operations, significantly improving manufacturing precision without requiring complex external control systems.

Inventive Principle:
Principle #25Self-service

2Productivity

If automated assembly apparatus is introduced, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improveassembly speedVSAvoidassembly apparatus complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The wick feed mechanism incorporates a rotatable component that can dynamically adjust the wick position as needed during assembly. This dynamic adjustment capability enables automated, high-speed assembly operations while keeping the apparatus structure relatively simple through the use of a single rotating degree of freedom rather than complex multi-axis positioning systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Multiple functions are combined into integrated components: the holder simultaneously secures the heater assembly and positions it relative to the wick feed; the cutter is integrated with the wick feed mechanism to trim wicks in-place; the compression mechanism is incorporated into the holder structure. This merging of functions improves productivity by eliminating separate操作步骤 while avoiding the complexity of multiple independent mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If wick retention mechanisms are added, then reliability of vaporization is improved, but device complexity increases

Engineering Contradiction:
Improvevaporization consistencyVSAvoidheater assembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The holder is designed to pre-position and secure the wick in the correct location on the heater assembly before the actual assembly is completed. This preliminary action ensures that the wick is properly retained and aligned, guaranteeing consistent vaporization performance while using a simple mechanical retention structure rather than complex retention mechanisms.

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

This solution facilitates efficient assembly and secure retention of the wick in the heater assembly, enhancing the consistency and quality of nicotine vapor production in nicotine e-vaping devices.

Implementation Method 1

The channel may be configured to guide the wick into alignment with a heater on the support

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP4138592B1Apparatus and method for assembling a heater assembly for a nicotine POD assembly
Publication Date: 2024.03.13 PHILIP MORRIS PRODUCTS SA
  • EP4138592B1 patent drawingFigure 1A
  • EP4138592B1 patent drawingFigure 1B
  • EP4138592B1 patent drawingFigure 2A

AI summary

An apparatus (10) for assembling a heater assembly for a nicotine pod assembly includes a base (14), a wick feed (234), a slide (22), and a holder (30). The wick feed (234) extends toward the base (14) and defines a channel (242) configured to receive a wick structured to draw a nicotine pre-vapor formulation via capillary action. The slide (22) is configured to move along a plane on a top face of the base (14). The holder (30) is disposed on the top face of the base (14).