Aerosol Inhaler Power Supply Unit Wireless Charging Heat Management
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Solution Overview
Problem
Heat generation due to the skin effect in AC conductive wires of aerosol inhalers during wireless charging affects circuit elements and reduces power transmission efficiency.
Innovation Solution
A power supply unit for aerosol inhalers includes a power reception coil, a converter to convert AC power to DC power, and a DC conductive wire connecting the converter and charger, with the DC conductive wire being longer than or equal in length to the AC conductive wire, minimizing heat generation from the skin effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless charging is implemented using a power reception coil and AC conductive wire, then power transmission capability is improved, but heat generation due to skin effect increases
Solution Approach 1:
The patent extracts the harmful AC conductive wire from the system and replaces it with a DC conductive wire. By removing the AC current path that causes skin effect and heat generation, the solution eliminates the harmful effect while preserving the wireless charging functionality through the power reception coil and converter assembly.
Solution Approach 2:
The patent changes the electrical parameter of the conductive wire from AC (alternating current) to DC (direct current). This parameter change eliminates the skin effect phenomenon that occurs with AC current, thereby preventing heat generation in the conductive wire while maintaining power transmission capability.
2Adaptability or versatility
If AC conductive wire is used to connect power reception coil and converter, then wireless power reception is enabled, but heat generation affects circuit elements
Solution Approach 1:
The patent removes the AC conductive wire that causes heat generation and potential damage to circuit elements. By extracting this harmful component and replacing it with a DC conductive wire, the system maintains wireless power reception capability while improving the reliability and stability of circuit elements.
Solution Approach 2:
The patent converts the harmful AC current that causes skin effect and heat generation into beneficial DC current. By using a converter to transform the received AC power into DC power, the system eliminates the harmful effects while maintaining the ability to receive power wirelessly.
3Object-generated harmful factors
If DC conductive wire length is increased to match or exceed AC conductive wire length, then heat generation is minimized, but device complexity increases
Solution Approach 1:
The patent extracts the problematic AC conductive wire configuration and replaces it with a DC conductive wire of appropriate length. By removing the AC wire that causes heat generation through skin effect, the solution simplifies the overall wiring configuration while minimizing heat generation in the remaining DC conductive connections.
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
Prevents heat generation in AC conductive wires, reducing the impact on circuit elements and maintaining power transmission efficiency by using a longer DC conductive wire to connect the converter and charger.
Implementation Method 1
a power reception coil capable of receiving the power in a wireless manner
Implementation Method 2
a converter configured to convert AC power into DC power
Implementation Method 3
heat may be generated due to a skin effect in an AC conductive wire through which an alternating current received in a wireless manner flows
Data Source
AI summary
A power supply unit for an aerosol inhaler includes: a power supply capable of supplying power to a load capable of generating aerosol from an aerosol source; and a charger capable of controlling charging of the power supply, in which the power supply unit further includes: a power reception coil capable of receiving the power in a wireless manner, a converter configured to convert AC power into DC power, an AC conductive wire connecting the power reception coil and the converter, and a DC conductive wire connecting the converter and the charger and having a length equal to or greater than a length of the AC conductive wire.