Dual-PCB RF Heating Layout for Aerosol Generator Interference Control
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Solution Overview
Problem
Existing aerosol generating devices face challenges in implementing dielectric heating methods due to the need for new circuit elements and appropriate distribution/arrangement within circuit boards, considering the varying operating conditions and characteristics of circuit elements.
Innovation Solution
The aerosol generating device incorporates a plurality of circuit boards with specific layouts and configurations, including a first circuit board with a processor and a second circuit board featuring an RF signal generation circuit and amplifiers, separated regions for noise reduction, heat dissipation, and directional couplers, optimized to efficiently distribute and arrange circuit elements for dielectric heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If circuit elements are mounted on the same circuit board, then device integration is improved, but circuit element interference and heat accumulation worsen
Solution Approach 1:
The patent divides the circuit elements into two separate circuit boards: a first circuit board for mounting the processor and control circuits, and a second circuit board for mounting the RF signal generation circuit and amplifiers. This segmentation physically isolates high-power RF components from sensitive control circuits, reducing electromagnetic interference and heat accumulation while maintaining functional integration through controlled connectors.
2Adaptability or versatility
If dielectric heating circuit elements are added, then heating functionality is improved, but circuit board layout complexity worsens
Solution Approach 1:
The patent implements dielectric heating functionality by adding a dedicated second circuit board containing RF signal generation circuits and amplifiers, rather than integrating all components onto a single board. This segmentation allows each board to be optimized for its specific function, simplifying individual board layouts while achieving complex overall system functionality.
3Productivity
If RF signal generation circuit and amplifiers are placed close together, then signal transmission efficiency is improved, but noise interference worsens
Solution Approach 1:
The patent introduces a connector as an intermediary element between the first circuit board (processor) and the second circuit board (RF signal generation circuit and amplifiers). This connector enables efficient signal transmission while providing physical separation that reduces noise interference, acting as a controlled interface that maintains signal integrity despite spatial separation.
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
This configuration enhances the efficiency and effectiveness of dielectric heating by minimizing heat transfer, noise interference, and optimizing signal amplification, ensuring reliable operation and improved heating performance.
Implementation Method 1
research is also being conducted on an aerosol generating device that may heat an aerosol-generating material by using the principle of dielectric heating
Implementation Method 2
a radiating unit configured to heat an aerosol-generating article by radiating the amplified RF signal in the form of electromagnetic waves into an insertion space
Data Source
AI summary
An aerosol generating device includes a power supply, a first circuit board on which a processor is mounted, a second circuit board, which is arranged spaced apart from the first circuit board and has mounted thereon a radio frequency (RF) signal generation circuit configured to generate an RF signal by using power supplied from the power supply and at least one amplifier configured to amplify the generated RF signal, and a radiating unit configured to heat an aerosol-generating article by radiating the amplified RF signal in the form of electromagnetic waves into an insertion space into which the aerosol-generating article is inserted, wherein the processor is configured to control the RF signal generation circuit and the at least one amplifier.