Induction Heater Assembly Layout for Sensor Integration and Airflow
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Solution Overview
Problem
Aerosol generating devices using induction heating methods face challenges in optimizing space utilization for sensors and ensuring smooth airflow, which affects the arrangement and functionality of components like moisture, article type, and pressure sensors, and air flow passage.
Innovation Solution
A heater assembly with a body, coil, air flow passage cover, pressure sensor, and moisture detecting sensor is designed to improve space utilization and facilitate airflow, incorporating a compact structure that accommodates various components and ensures easy inhalation of aerosols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors are arranged inside the aerosol generating device to detect moisture, article type, and pressure changes, then the sensing functionality is improved, but the space utilization and device compactness deteriorate
Solution Approach 1:
The patent combines multiple sensors (moisture sensor, article type sensor, pressure sensor) into a single integrated sensor assembly that is mounted on the air flow passage cover. This merging approach allows all sensing functions to be performed from a centralized location, improving space utilization while maintaining comprehensive monitoring capabilities throughout the aerosol generation system.
Solution Approach 2:
The sensor assembly is designed to perform multiple functions simultaneously - detecting moisture levels, identifying article types, and monitoring pressure changes - all through a single integrated component mounted on the air flow passage cover. This multi-functionality reduces the overall number of separate components needed, thereby compacting the device structure.
2Volume of stationary object
If sensors are mounted on the air flow passage cover to improve space utilization, then the compactness is improved, but the airflow smoothness may deteriorate
Solution Approach 1:
The air flow passage cover is designed with differentiated local qualities - the sensor mounting areas have specific surface characteristics and opening configurations that allow sensor placement without disrupting the overall airflow pattern. The cover integrates sensor openings and mounting structures in locations that minimize interference with the main aerosol flow path, ensuring both compact sensor arrangement and smooth airflow.
3Volume of stationary object
If the device is miniaturized to improve portability, then the volume is reduced, but the arrangement space for components deteriorates
Solution Approach 1:
The patent employs a nested arrangement where the sensor assembly is integrated into the air flow passage cover structure, which itself is part of the main device housing. The sensors are positioned to utilize the existing structural spaces and voids in the miniaturized device, nesting multiple functional elements within the limited volume without compromising their operational effectiveness.
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 heater assembly allows for a miniaturized, compact structure that efficiently accommodates sensors and enhances airflow, enabling easy inhalation of aerosols by improving space utilization and airflow passage design.
Implementation Method 1
a coil configured to apply a magnetic field so that a susceptor located in the receiving space generates heat to heat the aerosol generating article
Implementation Method 2
a coil configured to apply a magnetic field so that a susceptor located in the receiving space generates heat to heat the aerosol generating article
Data Source
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AI summary
A heater assembly for an aerosol generating device includes a body including a receiving space in which an aerosol generating article is accommodated, a coil configured to apply a magnetic field so that a susceptor located in the receiving space generates heat to heat the aerosol generating article, an air flow passage cover located outside the body and including an air flow passage through which air passes, a pressure sensor located on the air flow passage cover and configured to detect a change in pressure inside the air flow passage, and a moisture detecting sensor located on a support unit for supporting the coil and configured to detect moisture in the aerosol generating article accommodated in the receiving space.