Aerosol Power Supply PCB Layout for Compact Cable Connection
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Solution Overview
Problem
The existing power supply units for aerosol generating devices with multiple circuit substrates connected via cables face an issue of increased size due to improper mounting of connectors, which affects the overall design and functionality.
Innovation Solution
A power supply unit design where the second connector on the second circuit substrate is mounted such that the shortest distance between the edge of the substrate and the connector is longer than the distance between the substrate's center and the connector, allowing for efficient cable connection without increasing the substrate size, and incorporating a specific layout for electronic components to minimize space and optimize wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connector is mounted on the circuit substrate, then the cable connection is enabled, but the circuit substrate size increases
Solution Approach 1:
The connector is positioned asymmetrically on the circuit substrate such that the shortest distance from the connector to one edge is longer than the shortest distance to the center. This asymmetric placement optimizes cable routing while minimizing the required substrate area, resolving the contradiction between enabling cable connections and maintaining compact substrate size.
Solution Approach 2:
The problem is solved by considering the spatial relationship in multiple dimensions - specifically by comparing distances from the connector to different reference points (edge vs. center) on the substrate. This dimensional approach allows optimization of cable connection geometry without increasing overall substrate area.
2Ease of operation
If the connector is positioned away from the edge to allow cable connection, then the cable can be connected, but the substrate area increases
Solution Approach 1:
The connector is positioned asymmetrically such that it is closer to the center than to the edge, creating an optimal balance between cable access and space utilization. This asymmetric positioning enables cable connection while minimizing the bounding box area required for the substrate.
Solution Approach 2:
The optimal connector position is determined by changing the geometric parameters of the substrate layout - specifically by optimizing the distance ratios between the connector and various substrate features (edge vs. center). This parameter optimization enables cable connection with minimal area increase.
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 design prevents the enlargement of the circuit substrate where the connector is mounted, enhancing the compactness and efficiency of the power supply unit, thereby improving the portability and usability of aerosol inhalation devices.
Implementation Method 1
a coil configured to transmit electric power to the load by electromagnetic induction
Data Source
AI summary
A power supply unit of an aerosol generating device includes: a power supply; a first connector 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; a first circuit substrate; a second circuit substrate; a first cable connecting the first circuit substrate and the second circuit substrate; and a second connector which is mounted on the second circuit substrate and to which the first cable is connected. A shortest distance between an edge of the second circuit substrate closest to the second connector and the second connector is longer than a shortest distance between a center of the second circuit substrate and the second connector.