Wireless Charging Assembly With Side-Mounted Airflow Cooling
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Solution Overview
Problem
Existing wireless charging systems fail to effectively cool both the charging host and the smartphone, leading to heat accumulation and potential device breakdown, especially during complex software operations.
Innovation Solution
A wireless charging assembly with a fan device positioned outside the housing, blowing airflow onto the supporting surface to cool both the charging host and the electronic devices, while maintaining ingress protection by avoiding openings in the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is disposed in the wireless charging host to cool electronic components, then the wireless charging host can be cooled, but the smartphone cannot be effectively cooled and heat accumulates causing device breakdown
Solution Approach 1:
The cooling system is segmented into two independent parts: (1) passive cooling for the wireless charging host electronic components through heat dissipation structures, and (2) active cooling for the smartphone through a separate fan device with airflow channels that blow directly onto the smartphone surface, allowing each to be cooled independently without interfering with the other
Solution Approach 2:
An intermediary airflow path is introduced between the fan device and the smartphone, with airflow channels guiding the cooling air to blow directly onto the smartphone surface. This intermediary mechanism enables effective heat removal from the smartphone without requiring direct contact or integration with the smartphone's internal cooling system
2Temperature
If the fan is disposed inside the accommodation space of the wireless charging host, then cooling can be provided, but openings or holes are created allowing foreign materials to enter
Solution Approach 1:
The fan device is extracted from the internal accommodation space of the wireless charging host and repositioned on the external housing surface. This extraction eliminates the need for openings or holes in the housing structure, thereby preventing foreign material entry while maintaining the fan's cooling function through external airflow generation
Solution Approach 2:
The fan device is moved from a two-dimensional internal plane (accommodation space) to a three-dimensional external position on the housing surface. This dimensional transition allows the fan to access the smartphone from the outside, providing cooling through the airflow path without compromising the sealed integrity of the housing
3Ease of operation
If openings or holes are created on the wireless charging host for fan installation, then foreign materials can enter, but the ingress protection rating is compromised
Solution Approach 1:
The fan device is extracted from the sealed internal environment and installed on the external housing surface. This extraction allows the housing to maintain its complete sealing structure without openings or holes, preserving the ingress protection rating while still enabling fan installation and operation for cooling purposes
Solution Approach 2:
The housing structure is designed with flexible sealing capabilities that allow external fan mounting without compromising the sealed enclosure. The housing can accommodate the external fan device while maintaining its protective sealing, enabling both ease of fan installation and preservation of ingress protection rating
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
Efficient cooling of the wireless charging host and electronic devices, preventing foreign material entry and maintaining desired ingress protection ratings, such as IP54, thereby enhancing device performance and reliability.
Implementation Method 1
The fan is configured to blow an airflow to the supporting surface
Data Source
AI summary
A wireless charging assembly configured to support and charge an electronic device. The wireless charging assembly includes a wireless charging host and a fan device. The wireless charging host includes a housing and a wireless charging assembly. The housing includes a supporting surface and an accommodation space. The supporting surface faces away from the accommodation space. The supporting surface is configured to support the electronic device. The wireless charging assembly is disposed in the accommodation space and configured to charge the electronic device. The fan device includes a casing and a fan. The fan is disposed in the casing. The casing is disposed on a side of the housing. The fan is configured to blow an airflow to the supporting surface.