Electromagnetic Heating Element With Through-Holes for Rapid Smoke Emission

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Solution Overview

Problem

Aerosol-generating systems using pot-shaped heating elements face delays in smoke emission due to the need for specific heating times, resulting in low initial smoke production and potential liquid explosion phenomena.

Innovation Solution

An electromagnetic heating element with a tubular side wall and bottom wall forming a vaporization cavity, featuring a through hole for increased contact area with the vaporization medium, which enhances rapid smoke emission and reduces liquid explosion risks, along with a surface roughness and heat distribution layer for efficient heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a pot-shaped heating element is used to hold and heat vaporization medium, then the heating function is achieved, but the smoke emitting speed is low and there is a delay at the beginning of inhalation

Engineering Contradiction:

Improvesmoke emitting speedVSAvoidheating time delay

Core Design Contradiction:

SpeedVSLoss of time

Solution Approach 1:

The heating element is divided into multiple heating sections with through-holes that segment the vaporization medium into multiple contact zones, allowing simultaneous heating at multiple locations and rapid smoke emission without significant delay

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Through-holes are introduced in the heating element walls, adding a dimensional pathway for vaporization medium to contact the heating surface from multiple directions simultaneously, dramatically increasing effective heat transfer area and smoke emission speed

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If a pot-shaped heating element is used, then heating function is provided, but liquid explosion phenomena may occur

Engineering Contradiction:

Improvesafety against liquid explosionVSAvoidliquid explosion risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The heating element structure with through-holes segments the vaporization medium into multiple smaller heating zones, preventing large volumes of liquid from heating simultaneously and reducing the risk of explosive vaporization

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The through-holes allow vaporization medium to be gradually introduced and pre-heated in controlled portions before full vaporization occurs, preventing sudden explosive heating by establishing gradual thermal equilibrium

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 solution enables rapid smoke emission and increased smoke production while minimizing the risk of liquid explosion, with the electromagnetic heating element being movable and disposable, offering a cost-effective and efficient vaporization process.

Implementation Method 1

An electromagnetic heating element with a tubular side wall and bottom wall forming a vaporization cavity

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20240389660A1Electromagnetic heating element, aerosol-generating article, and aerosol-generating system

Publication Date: 2024.11.28 VERDEWELL INT HLDG LTD

AI summary

An electromagnetic heating element includes: a tubular side wall; and a bottom wall disposed at an end of the tubular side wall in an axial direction. The tubular side wall and the bottom wall define a vaporization cavity. The tubular side wall and/or the bottom wall is provided with a through hole connecting the vaporization cavity to an outside.