Wireless Charging Pad Airflow Channels for Heat Control
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Solution Overview
Problem
Wireless charging efficiency is reduced due to heat generated by both the charging device and mobile devices, which affects charging performance.
Innovation Solution
A wireless charging device with a casing, support pad, and fan configuration that directs airflow to cool both the mobile device and the charging module, maintaining optimal temperatures through air inlets and outlets, ensuring efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless charging is performed, then charging function is provided, but heat is generated reducing charging efficiency
Solution Approach 1:
The support pad is segmented into multiple protrusions that create separate airflow channels. Each protrusion acts as an independent flow guide, dividing the airflow path to optimize cooling effectiveness across different regions of the mobile device, thereby addressing heat generation while maintaining charging function.
Solution Approach 2:
Airflow is introduced as an intermediary cooling medium between the heat-generating components (wireless charging module and mobile device). The fan-driven airflow passes through channels formed by the protrusions to dissipate heat from both the mobile device bottom surface and the wireless charging module, resolving the temperature issue without eliminating the charging function.
2Temperature
If cooling airflow is introduced, then temperature is controlled, but device structure becomes more complex
Solution Approach 1:
The support pad serves multiple functions: it provides mechanical support for the mobile device through its protrusions, guides airflow through the created channels for cooling, and maintains structural simplicity. This multi-functionality allows temperature control to be achieved without significantly increasing device complexity.
Solution Approach 2:
The support pad with protrusions creates a porous-like structure with multiple channels that guide airflow. This approach enables effective cooling through a relatively simple structural modification rather than adding complex cooling systems, balancing temperature control with structural simplicity.
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 mobile device and the charging device, preventing heat from reducing charging efficiency and ensuring reliable charging performance.
Implementation Method 1
The fan is disposed in the interior space and configured to suck air into the interior space through the air inlet and blow air out of the interior space through the air outlet
Implementation Method 2
the airflow can firstly pass by the bottom of 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 support pad (40, 40a), a wireless charging module (20) and a fan (30). The casing has an interior space (13), an 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, and the support surface has a placement region (1211). The support pad (40, 40a) is disposed at the placement region. The support pad has a plurality of protrusions (41, 41a) to support the electronic device, and the protrusions form a plurality of channels (42, 42a) towards the air inlet. The wireless charging module is disposed in the interior space and corresponds to the placement region. The fan is disposed in the interior space and configured to suck air into the interior space through the air inlet and blow air out of the interior space through the air outlet.