Aerosol Power Supply Terminal Layout for Compact PCB Mounting
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Solution Overview
Problem
The power supply units of aerosol generating devices are hindered in miniaturization due to the indirect connection of discharge terminals to circuit substrates via wiring, leading to size constraints.
Innovation Solution
The power supply unit incorporates a circuit substrate with the positive and negative electrode-side discharge terminals directly mounted on separate surfaces, allowing for a compact design by eliminating the need for wiring connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If discharge terminals are connected to circuit substrate via wiring, then electrical connection is achieved, but device size increases
Solution Approach 1:
The patent merges the discharge terminals with the circuit substrate by mounting both the positive electrode-side discharge terminal and negative electrode-side discharge terminal directly on the circuit substrate. This integration eliminates the need for separate wiring connections, thereby reducing the overall volume of the power supply unit while maintaining electrical connectivity functionality.
Solution Approach 2:
The patent utilizes the third dimension by mounting discharge terminals on both the front surface and back surface of the circuit substrate. This spatial arrangement allows for compact positioning of terminals without requiring extended wiring paths, effectively reducing device volume while maintaining proper electrical connections.
2Volume of moving object
If discharge terminals are mounted on circuit substrate, then device size decreases, but risk of short-circuiting increases
Solution Approach 1:
The patent segments the discharge terminals into distinct positive electrode-side and negative electrode-side terminals mounted on separate surfaces of the circuit substrate. This spatial segmentation physically separates terminals of opposite polarity, reducing the risk of short-circuiting while maintaining compact device dimensions.
Solution Approach 2:
The circuit substrate itself acts as an intermediary structure that provides both mechanical support and electrical isolation between the positive and negative discharge terminals. By mounting terminals on opposite surfaces of the substrate, the substrate material serves as a natural insulator preventing direct contact and potential short-circuits.
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 enables a downsized power supply unit with increased space for electronic components, preventing unintended short-circuiting and allowing for a more functional and cost-effective aerosol generating device.
Implementation Method 1
a positive electrode-side discharge terminal (41a) and a negative electrode-side discharge terminal (41b) to which a load (21) configured to generate aerosol from an aerosol source (22) by consuming electric power supplied from the power supply or a coil configured to transmit electric power to the load by electromagnetic induction is connected
Data Source
AI summary
A power supply unit of an aerosol generating device, includes: a power supply; a positive electrode-side discharge terminal and a negative electrode-side discharge terminal to which a load configured to generate aerosol from an aerosol source by consuming electric power supplied from the power supply or a coil configured to transmit electric power to the load by electromagnetic induction is connected; and a circuit substrate including a first surface on which the positive electrode-side discharge terminal is mounted and a second surface which is a back surface of the first surface and on which the negative electrode-side discharge terminal is mounted.