Aerosol Power Unit Antenna-Edge PCB Layout for Noise Isolation

Solution Overview

Problem

Existing aerosol generation devices lack an optimal configuration for mounting communication modules on circuit boards, which affects the performance and efficiency of the power source unit.

Innovation Solution

A power source unit for aerosol generation devices is designed with a communication module mounted on a circuit board where the first side edge closest to the antenna portion is positioned closer to the antenna than the integrated circuit portion, optimizing the layout to reduce noise interference and enhance communication stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the communication module is mounted on the circuit board without optimized positioning, then the device can be manufactured with standard layout, but the communication stability is degraded due to noise interference from the heater and power source

Engineering Contradiction:

Improvecommunication stabilityVSAvoidcircuit board layout complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by creating a dedicated communication module mounting region with specific electromagnetic shielding properties. The circuit board is divided into functional zones where the communication module region has enhanced noise isolation characteristics, with ground patterns and shielding structures optimized specifically for that location to protect against heater-induced interference.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent introduces ground patterns and shielding structures as intermediary elements between the communication module and the heater/power source. These intermediary components act as electromagnetic barriers that block noise transmission while allowing the communication module to maintain its standard mounting position on the circuit board.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Area of stationary object

If the antenna portion is positioned close to the integrated circuit portion, then the circuit board area is minimized, but the communication performance is degraded due to noise from the power source and heater

Engineering Contradiction:

Improvecircuit board areaVSAvoidcommunication performance

Core Design Contradiction:

Area of stationary objectVSReliability

Solution Approach 1:

The patent introduces ground patterns and shielding structures as intermediary elements between the communication module and the heater/power source. These intermediary components act as electromagnetic barriers that block noise transmission while allowing the communication module to maintain its standard mounting position on the circuit board.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies local quality by creating a dedicated communication module mounting region with specific electromagnetic shielding properties. The circuit board is divided into functional zones where the communication module region has enhanced noise isolation characteristics, with ground patterns and shielding structures optimized specifically for that location to protect against heater-induced interference.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If the communication module is mounted without considering antenna positioning relative to circuit board edges, then the manufacturing process is simplified, but noise interference from the power source increases

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidnoise interference

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by specifying that the first side edge portion of the circuit board closest to the communication module should be positioned closer to the antenna portion than to the integrated circuit portion. This asymmetric edge positioning creates an optimal electromagnetic environment for the antenna while maintaining straightforward manufacturing processes.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS20240057688A1Power source unit for aerosol generation device

Publication Date: 2024.02.22 JAPAN TOBACCO INC

AI summary

A power source unit for an aerosol generation device comprises: a communication module including an integrated circuit portion and an antenna portion; and a power source configured to supply power for driving a heater configured to heat an aerosol source. The power source unit comprises a controller configured to control the supply of the power from the power source to the heater; and a circuit board on which the communication module and an electronic component are mounted. A first side edge portion closest to the communication module is located at a position closer to the antenna portion than the integrated circuit portion.