Wireless Charging Casing Airflow Layout for Thermal Efficiency
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Solution Overview
Problem
Wireless charging efficiency is reduced due to heat generated by both the charging device and the mobile device, which affects charging performance.
Innovation Solution
A wireless charging device with a casing, a wireless charging module, and a fan that includes air inlets and outlets to facilitate airflow, allowing the fan to cool both the electronic device and the charging module by directing airflow through the device before it enters the casing, maintaining optimal temperatures for efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless charging is performed, then charging function is provided, but heat is generated reducing charging efficiency
Solution Approach 1:
The interior space is segmented into distinct regions: a first space for the mobile device and a second space for the wireless charging module. This spatial segmentation allows independent temperature control and heat management for each component, enabling the airflow to selectively cool the mobile device first before entering the charging module area, thereby maintaining charging efficiency while managing heat generation.
Solution Approach 2:
Airflow is introduced as an intermediary cooling medium between the heat sources (mobile device and wireless charging module) and the surrounding environment. The fan-driven airflow acts as a thermal mediator, absorbing heat from the mobile device first, then continuing to cool the wireless charging module, effectively managing the thermal impact on charging efficiency without requiring direct thermal contact or complex cooling systems.
2Temperature
If cooling airflow is directed through the device, then temperature is reduced, but charging efficiency is improved
Solution Approach 1:
The airflow path is designed to preliminary cool the mobile device before the air enters the region containing the wireless charging module. The air inlet is positioned to direct airflow across the mobile device placement area first, removing heat from the device being charged before the cooled air reaches the charging module itself. This preliminary cooling action prevents the mobile device from overheating during charging, thereby maintaining optimal charging efficiency throughout the process.
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
The solution effectively maintains desired temperatures for both the electronic device and the wireless charging module, thereby enhancing charging efficiency by utilizing airflow to manage heat generated during the charging process.
Implementation Method 1
The fan is disposed in the interior space and configured to suck air into the interior space through the at least one air inlet and blow air out of the interior space through the air outlet
Implementation Method 2
the airflow can firstly pass by the electronic device to cool the electronic device, then the airflow enters into the interior space to cool the wireless charging module
Data Source
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AI summary
A wireless charging device (1, 1a) includes a casing (10), a wireless charging module (20) and a fan (30). The casing has an interior space (13), at least one air inlet (125), an air outlet (114) and a support surface (121). The air inlet and the air outlet are in fluid communication with the interior space, the support surface faces away from the interior space. The support surface has at least one placement region (1211), the placement region is located at one side of the air inlet, and the placement region is configured for the electronic device to be placed thereon. The wireless charging module is disposed in the interior space and corresponds to the at least one placement region. The fan is disposed in the interior space and configured to suck air into the interior space through the at least one air inlet and blow air out of the interior space through the air outlet.