Segmented Heating Element Layout for Uniform Atomization Surfaces

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Solution Overview

Problem

Conventional heating elements in electronic atomization devices exhibit non-uniform thermal field distribution, leading to local high-temperature regions causing burnt taste and harmful substances, and local low-temperature regions where liquid cannot be effectively atomized.

Innovation Solution

The heating element is designed with at least a first heating portion and a second heating portion that generate heat differently per unit length and time, with varying resistivities and configurations to ensure uniform thermal field distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a conventional heating element is used, then the atomization assembly can heat the atomizing surface to generate aerosol, but the thermal field distribution becomes non-uniform causing local high-temperature regions and burnt taste

Engineering Contradiction:

Improvethermal field distribution uniformityVSAvoidburnt taste and harmful substances

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The heating element is divided into multiple heating portions (first heating portion and second heating portion) with different resistivities. Each heating portion generates different heat per unit length, creating a segmented heating pattern that distributes thermal energy more uniformly across the atomizing surface, preventing localized overheating and burnt taste.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the heating element are designed with different resistivity characteristics. The first heating portion has higher resistivity (30-100 mΩ·mm) while the second heating portion has lower resistivity (0.1-10 mΩ·mm). This local variation in heating characteristics ensures that areas prone to overheating receive less heat density, achieving uniform thermal field distribution and eliminating burnt taste.

Inventive Principle:

Principle #3Local quality

2Productivity

If a conventional heating element is used, then heating can be provided to the atomizing surface, but local low-temperature regions occur where liquid cannot be effectively atomized

Engineering Contradiction:

Improveatomization efficiencyVSAvoidlocal low-temperature region

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The heating element is segmented into portions with different heating capacities. The lower-resistivity second heating portion provides concentrated heat to specific areas that would otherwise be underheated, ensuring all regions of the atomizing surface reach adequate temperatures for effective atomization and improving overall productivity.

Inventive Principle:

Principle #1Segmentation

3Temperature

If the heating element has varying resistivity sections, then uniform thermal field distribution can be achieved, but the device complexity increases

Engineering Contradiction:

Improvethermal field distribution uniformityVSAvoidheating element structure

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The heating element is constructed as a composite structure incorporating different materials or material compositions with distinct resistivity values. This composite approach achieves the desired non-uniform heating pattern in a single integrated component, avoiding the need for multiple separate heating elements or complex control systems, thus limiting the increase in device complexity.

Inventive Principle:

Principle #40Composite materials

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

Prevents the formation of local high-temperature regions, ensuring uniform heat distribution, preventing burnt taste and dry burning, and enhancing user experience by uniformly atomizing the aerosol-forming matrix.

Implementation Method 1

the heating element being configured to be connected to a power source to heat the atomizing surface

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

an aerosol-forming matrix on the atomizing surface can absorb the heat to form, by atomization, aerosol for user suction

Methodology Applied

Scientific EffectAtomization:

Data Source

PatentUS12484620B2Atomization assembly and electronic atomization device

Publication Date: 2025.12.02 SHENZHEN SMOORE TECH LTD

AI summary

The present disclosure relates to an atomization assembly and an electronic atomization device. The atomization assembly includes a substrate including an atomizing surface configured to atomize an aerosol-forming matrix to form aerosol; and a heating element configured to be connected to a power source to heat the atomizing surface. The heating element is directly or indirectly arranged on the atomizing surface. The heating element includes at least a first heating portion and at least a second heating portion that generate heat differently per unit length and per unit time. Since the heating element includes at least a first heating portion and at least a second heating portion that generate heat differently per unit length and per unit time, the formation of a heat stack region on the atomizing surface can be prevented, so as to ensure that thermal field distribution of the whole atomization assembly is uniform.