Rotatable Mouthpiece Airflow Layout for Sensor-Protected Atomizers

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Solution Overview

Problem

Existing atomizing devices for electronic cigarettes face issues with e-liquid reflux contaminating sensors and interference between air passages, affecting user experience and sensitivity.

Innovation Solution

The atomizing device features independent main and branch air passages and sensors, with a rotatable mouthpiece allowing selective communication between them, and includes multiple cartridge chambers and air inlet channels to prevent contamination and interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the sensor is placed on the main air passage through the cartridge chamber, then the device structure is simplified, but the e-liquid reflux contaminates the sensor

Engineering Contradiction:
Improveair passage structureVSAvoidsensor contamination risk
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The air passage is divided into two independent segments: the main air passage for vapor transport and the branch air passage for sensor communication. This segmentation isolates the sensor from the e-liquid reflux path while maintaining structural efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The branch air passage acts as an intermediary channel, allowing the sensor to communicate with the inhalation port without being directly exposed to the e-liquid in the cartridge chamber, thus preventing contamination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the sensor is placed away from the inhalation port, then the sensor is protected from e-liquid reflux, but the path length from mouthpiece to sensor increases

Engineering Contradiction:
Improvesensor protection from contaminationVSAvoidair passage path length
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The branch air passage extends in a direction perpendicular to the main air passage, allowing the sensor to be positioned closer to the inhalation port in a different spatial dimension while maintaining protection from e-liquid reflux.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If only one air passage is provided, then the device structure is simplified, but air passage blockage affects all cartridges

Engineering Contradiction:
Improveair passage configurationVSAvoidcartridge compatibility and independence
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The air passage system is segmented into multiple independent main air passages, each serving a specific cartridge chamber. This allows one cartridge to be blocked or replaced without affecting other cartridges, enhancing system versatility and reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system allows dynamic configuration of which air passage is active by controlling the mouthpiece rotation, enabling adaptation between different cartridge configurations without structural changes.

Inventive Principle:
Principle #35Parameter changes

4Device complexity

If the mouthpiece is fixed, then the structure is simplified, but the user cannot selectively communicate with different air passages

Engineering Contradiction:
Improvemouthpiece structureVSAvoidselective air passage communication
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The mouthpiece is designed with rotational capability, transforming it from a fixed structure to a dynamic one that can selectively align with different air passages, providing user control over which cartridge is active.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mouthpiece can be rotated in advance to position the inhalation port aligned with the desired air passage before use, allowing users to pre-select which cartridge will be activated.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4652870A1Atomizing device
Publication Date: 2025.11.26 SHENZHEN RELX TECH CO LTD
  • EP4652870A1 patent drawingFigure 1
  • EP4652870A1 patent drawingFigure 2
  • EP4652870A1 patent drawingFigure 3

AI summary

An atomizing device (100) has a length direction (X) and includes an atomizing body (10) and a mouthpiece (30). The atomizing body (10) includes a first end (10a) and a second end (10b) spaced apart in the length direction (X), and further includes cartridge chambers (21), main air passages (23), branch air passages (25), and sensors (27). Each main air passage (23) and each branch air passage (25) are independent of each other. Each main air passage (23) and each branch air passage (25) extend through the first end (10a) respectively. Each cartridge chamber (21) communicates with one main air passage (23), and each sensor (27) communicates with one branch air passage (25). The mouthpiece (30) is rotatably connected to the first end (10a) and includes an inhalation port (31) selectively and simultaneously communicating with one main air passage (23) and one branch air passage (25).