Aerosol Inhaler Power Supply Circuit With Unequal Capacitors
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Solution Overview
Problem
Existing power supply units for aerosol inhalers face challenges in minimizing the space occupied by capacitors on the circuit board while effectively protecting multiple control devices.
Innovation Solution
A power supply unit design featuring a first capacitor connected in parallel with a charger and a second capacitor connected in parallel with a control unit, where the capacities of the capacitors differ, allowing for appropriate protection and reduced board space by optimizing capacitor placement and capacity selection based on the specific control devices' requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control devices are provided on the same circuit board, then the control functionality is improved, but the area occupied by capacitors increases
Solution Approach 1:
The patent applies local quality by providing different capacity capacitors at different locations on the circuit board, specifically matching capacitor capacity to the protection needs of each control device. This localized optimization allows effective protection while minimizing total board area usage.
Solution Approach 2:
The patent changes the parameter of capacitor capacity from uniform to variable, selecting different capacities based on the specific requirements of each control device. This parameter optimization enables reduced total capacitor area while maintaining adequate protection for all devices.
2Reliability
If capacitors are provided to protect control devices, then the reliability is improved, but the area on the circuit board increases
Solution Approach 1:
The patent optimizes capacitor capacity parameters based on the specific protection requirements of each control device, avoiding over-provisioning. This parameter tuning maintains necessary reliability while reducing total board area occupied by capacitors.
Solution Approach 2:
The patent applies partial action by providing capacitor protection selectively matched to each control device's needs rather than using uniform oversized capacitors, achieving adequate protection with minimized total 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 design effectively reduces the board area occupied by capacitors while ensuring the appropriate protection of control devices, enhancing the overall compactness and functionality of the power supply unit.
Implementation Method 1
a first capacitor which is provided on an input side of the first control device so as to be connected in parallel with the first control device; and a second capacitor which is provided on an input side of the second control device so as to be connected in parallel with the second control device
Data Source
AI summary
A power supply unit for an aerosol inhaler includes: a power supply able to discharge power to a load for generating an aerosol from an aerosol source; a first control device and a second control device which are configured to control at least one of charging and discharging of the power supply; a circuit board on which the first control device and the second control device are provided; a first capacitor which is provided on an input side of the first control device so as to be connected in parallel with the first control device; and a second capacitor which is provided on an input side of the second control device so as to be connected in parallel with the second control device, wherein a capacity of the first capacitor is different from a capacity of the second capacitor.