Aerosol Device Power Supply Boards for High-Current Heating
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Solution Overview
Problem
Aerosol-generating devices face challenges in ensuring proper power supply to heating units due to high current demands, necessitating a solution that can manage current concentration and ensure efficient power distribution.
Innovation Solution
The power supply unit includes a power supply, control device, and boards with specific electrode and contact connection parts, featuring a wider electroconductive region to manage current flow and prevent concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the device is made compact to fit in the user's hand, then the portability is improved, but the power supply capability deteriorates due to high current demands
Solution Approach 1:
The patent divides the circuit board into two separate boards: a first board for mounting the control device and a second board for power supply connections. This segmentation allows each board to be optimized for its specific function, with the second board designed to handle high current demands without compromising the compact overall device size.
Solution Approach 2:
The patent transitions from a single-board design to a multi-board three-dimensional arrangement. By stacking or positioning the first and second boards in different spatial dimensions, the device maintains compact volume while providing sufficient area on the second board for adequate power supply connections and heat dissipation.
2Reliability
If the electroconductive region width is increased to prevent current concentration, then the power supply reliability is improved, but the board area requirement increases
Solution Approach 1:
By separating power supply functions onto a dedicated second board, the patent concentrates the required electroconductive region area on that specific board rather than requiring the entire circuit board to be large. This allows the first board to remain compact while the second board provides sufficient area for reliable power connections.
Solution Approach 2:
The patent applies different design qualities to different parts of the system: the second board is designed with wider electroconductive regions and larger connection areas specifically where high current flows, while other parts of the device maintain compact dimensions. This localized optimization ensures power reliability without unnecessarily increasing overall board area.
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 allows for suitable power supply to heating units, preventing current concentration and ensuring reliable operation even with high current demands.
Implementation Method 1
an electroconductive region connecting the electrode connection part and the contact connection part
Data Source
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AI summary
This inhalation device (100) comprises a power supply part (111C) that supplies power to a heating unit (121C), a main board (50), and a power supply board (71). The power supply board (71) is provided with a positive electrode tab connection (711a) that is connected to a positive electrode tab (111a), a positive contact connection part (784) that is connected to a contact of the main board (50), and a first positive electroconductive region (781) and a second positive electroconductive region (782) that connect the positive electrode tab connection part (711a) and the positive contact connection part (784). The widths (W1, W2) of the first positive electroconductive region (781) and the second positive electroconductive region (782) are both greater than the width (Wa) of the positive electrode tab connection part (711a).