Pressure Capture Assembly for Compact Aerosol Airflow Detection
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Solution Overview
Problem
Existing aerosol generation devices face issues with flow sensors that are bulky and inefficient, affecting device design and airflow detection accuracy.
Innovation Solution
A compact pressure capture assembly is introduced, comprising a pressure sensor housed in a flexible housing and fixed by a holder, which isolates atomizer and power block compartments to efficiently detect airflow by measuring pressure differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a flow sensor is used to detect airflow, then automatic device operation can be triggered, but the sensor dimensions are relatively large which affects device design
Solution Approach 1:
The pressure sensor is integrated with the bracket structure, merging the sensing function with the mechanical support structure. This combination eliminates the need for a separate bulky sensor housing, achieving compact dimensions while maintaining automation capability.
Solution Approach 2:
The bracket serves dual functions: providing mechanical support for internal components and housing the pressure sensor. This multi-functionality reduces the overall device volume by eliminating dedicated sensor housing space.
2Measurement precision
If a pressure sensor is used to detect airflow, then efficient airflow detection is achieved, but air leakage between compartments may occur affecting detection accuracy
Solution Approach 1:
A flexible membrane seals the pressure sensor within the bracket, creating an air-tight barrier between the atomizer and power block compartments. This flexible seal prevents air leakage while allowing the sensor to accurately detect pressure differences caused by user puffing.
3Measurement precision
If the pressure sensor is isolated between compartments, then airflow detection efficiency is improved, but device complexity increases
Solution Approach 1:
The pressure sensor housing is merged with the bracket structure, eliminating the need for separate mounting components. This integration simplifies the overall assembly while maintaining the functional isolation needed for efficient airflow detection.
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 assembly ensures efficient airflow detection without affecting device design, minimizing air leakage and enhancing sensor performance.
Implementation Method 1
by comparing the pressure difference between these compartments, the pressure sensor can efficiently detect an airflow
Implementation Method 2
the flexible housing can have an increased contact surface with the pressure sensor so as to minimize the risk of air leakage between the pressure sensor and its supporting structure
Data Source
AI summary
The present invention concerns an aerosol generation device (10), comprisinga bracket extending along a device axis (X),an outside casing delimiting an interior part of the device configured to receive the bracket and defining an atomizer compartment and a power block compartment, anda pressure capture assembly comprising a pressure sensor, a flexible housing configured to receive the pressure sensor and a holder configured to fix the flexible housing with the pressure sensor on the bracket. Thepressure capture assembly is designed to be arranged on the bracket between the power block compartment and the atomizer compartment to prevent air passage between these compartments.