Heating Cavity Conductive Layout for Automatic Substrate Detection

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Solution Overview

Problem

Existing electronic atomizers face complex and unreliable detection methods for aerosol-generation substrates, leading to cumbersome operations and potential damage during insertion.

Innovation Solution

A heating assembly with a conductive and insulating region configuration in the heating cavity that forms an electrical connection through the aerosol-generation substrate, enabling capacitive and resistance sensing to accurately detect substrate presence without manual operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional detection method is used to detect substrate insertion, then the electronic atomizer can identify substrate presence, but the detection structure becomes complex and reliability deteriorates

Engineering Contradiction:

Improvedetection structure reliabilityVSAvoiddetection structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical detection structures with an electrical detection mechanism. The heating assembly includes a conductive region that forms an electrical connection through the aerosol-generation substrate when inserted, allowing the detection unit to sense substrate presence via electrical conductivity changes rather than mechanical switches or sensors.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The heating assembly serves dual functions: it both heats the substrate and detects its presence. The conductive region integrated into the heating assembly acts as both a heating element and a detection electrode, eliminating the need for separate detection structures and simplifying the overall device architecture.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If manual operation is required for substrate insertion detection, then detection can be performed, but user operation becomes cumbersome

Engineering Contradiction:

Improvesubstrate insertion operationVSAvoidoperation time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system performs automatic detection of substrate insertion without requiring manual confirmation from the user. When the substrate is inserted into the heating cavity, the electrical connection is automatically formed between the conductive region and substrate, triggering the detection unit to identify substrate presence and activate heating without user intervention.

Inventive Principle:

Principle #25Self-service

3Ease of operation

If excessive force is applied during substrate insertion, then substrate can be inserted, but substrate damage occurs

Engineering Contradiction:

Improvesubstrate insertion easeVSAvoidsubstrate damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The detection unit provides immediate feedback when substrate insertion is detected through electrical connection. This feedback mechanism allows the system to recognize successful insertion without requiring forceful action, and can potentially provide user feedback (such as visual or haptic signals) to confirm proper insertion, preventing users from applying excessive force.

Inventive Principle:

Principle #23Feedback

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

Simplifies detection, enhances reliability, prevents substrate damage, reduces production costs, and ensures precise heating without excessive force, thus improving user experience and assembly efficiency.

Implementation Method 1

an insulating region, provided between the first conductive region and the second conductive region and configured to electrically isolate the first conductive region from the second conductive region

Methodology Applied

Scientific EffectElectrical insulation: Dielectric

Implementation Method 2

in a state where the aerosol-generation substrate is accommodated in the heating cavity, an electrical connection is formed between the first conductive region and the second conductive region through the aerosol-generation substrate

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 3

a heating assembly and an electronic atomizer... configured to heat the aerosol-generation substrate

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP4201237B1Heating assembly and electronic atomizer

Publication Date: 2026.03.25 SHENZHEN SMOORE TECH LTD

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AI summary

The present invention relates to a heating assembly and an electronic atomizer. The heating assembly includes a heating cavity. The heating cavity includes: a first conductive region; a second conductive region provided on a side of the first conductive region; and an insulating region provided between the first conductive region and the second conductive region. The insulating region is configured to electrically isolate the first conductive region from the second conductive region. In a state where the aerosol-generation substrate is accommodated in the heating cavity, an electrical connection is formed between the first conductive region and the second conductive region through the aerosol-generation substrate.