Flexible PCB Battery Module Layout for Compact Aerosol Devices
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Solution Overview
Problem
Existing aerosol generating systems, such as e-cigarettes, face challenges in spatial optimization of the battery module, particularly in terms of longitudinal space and optimal component positioning, which affects the device's compactness and portability.
Innovation Solution
A battery module design featuring a flexible printed circuit that extends over both sides and ends of the battery, incorporating a microprocessor and pressure sensor, with stiffening plates for mechanical reinforcement and heat insulation, and a ferromagnetic sheet for magnetic charging, allowing for a compact and efficient integration of electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a rigid or flexible printed circuit board is used to optimize the shape of the aerosol generating system, then the device can be made more compact and portable, but the longitudinal space optimization and component positioning are not fully resolved
Solution Approach 1:
The flexible printed circuit board is bent to extend over the end face of the battery, transitioning from a planar two-dimensional layout to a three-dimensional configuration that wraps around the battery. This dimensional change allows components to be positioned on multiple surfaces (side wall and end face) of the battery, optimizing space utilization and reducing longitudinal space requirements while maintaining simple component positioning.
2Duration of action of moving object
If electronic components are positioned on the battery module to achieve sufficient battery capacity, then the battery capacity is sufficient for convenient use, but the longitudinal space and component arrangement are not optimized
Solution Approach 1:
The flexible printed circuit board is configured to extend over the end face of the battery, enabling components to be positioned on both the side wall and end face surfaces. This three-dimensional arrangement distributes components across multiple surfaces, maximizing the use of available space without increasing the longitudinal dimension of the battery module, thus maintaining sufficient battery capacity while optimizing longitudinal space.
3Ease of manufacture
If components are connected on opposite faces of the battery, then component integration is optimized, but space utilization and connectivity are not fully achieved
Solution Approach 1:
The flexible printed circuit board serves multiple functions: it provides electrical connectivity between components on opposite faces of the battery, provides mechanical support for mounting components, and enables compact integration by wrapping around the battery. This multi-functional design achieves both excellent component integration and optimal space utilization within the battery module.
Data Source
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AI summary
The invention relates to a battery module for an aerosol generating system. The battery module comprises a battery (1) and a flexible printed circuit (6) connected to the battery (1). The flexible printed circuit (6) forms a main circuit board of the battery module. The flexible printed circuit (6) comprises a first portion (P1) which extends over a side wall (4) of the battery (1), and is bent such that a second portion (P2) of the flexible printed circuit (6) extends over at least one of end faces (2,3) of the battery (1). The first portion (P1) carries a microprocessor or a microntoller (7) and the second portion carries a pressure sensor. This allows spatial optimization of the battery module, and in particular spatial optimization of the electronic components of the battery module.