Modular Coil Assembly for Wireless Charging Heat Dissipation
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Solution Overview
Problem
Existing wireless charging coil modules face challenges in achieving optimal charging performance due to variations in device dimensions and inductances, leading to inefficiencies in inductive coupling and heat dissipation.
Innovation Solution
The proposed coil module system includes a second coil mechanism with multiple coil assemblies and a heat dissipation assembly, featuring a unique housing structure with tapered sections and magnetic permeability members, along with a control assembly and heat dissipation paths to enhance inductive coupling and heat management, allowing for efficient charging across different device dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single coil assembly is used, then the device structure is simple, but the charging performance varies for different device dimensions and inductances
Solution Approach 1:
The patent divides the coil mechanism into multiple independent coil assemblies (first, second, third, and fourth coil assemblies) with different dimensions and inductances. Each coil assembly can be independently selected and positioned to match the charging needs of different device sizes, thereby improving adaptability while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The housing structure is designed to accommodate multiple coil assemblies that can serve different functions - some coils are optimized for large devices, others for small devices, and some for specific positioning scenarios. This multi-functional design allows a single charging device to universally support various device dimensions and types.
2Adaptability or versatility
If multiple coil assemblies are added to accommodate different device dimensions, then charging performance improves, but heat dissipation becomes more challenging
Solution Approach 1:
The heat dissipation system is segmented into multiple independent heat dissipation assemblies, each corresponding to specific coil assemblies. This allows heat from different coil groups to be managed separately, preventing heat accumulation and improving overall thermal management efficiency while supporting multiple coil configurations.
Solution Approach 2:
Magnetic permeability members are introduced as intermediary elements between the coil assemblies and the housing. These members serve dual functions: optimizing magnetic field distribution for charging performance and facilitating heat transfer from the coils to the housing structure, thereby addressing both charging efficiency and heat dissipation.
3Reliability
If magnetic permeability members are positioned close to the main axis, then inductive coupling efficiency improves, but the space for other components is reduced
Solution Approach 1:
The housing structure incorporates localized tapered sections at specific positions where magnetic permeability members are placed. These tapered portions create concentrated magnetic field regions that enhance inductive coupling efficiency at critical locations without requiring the entire housing to be optimized, thereby maintaining sufficient space for other components while improving coupling where needed.
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 configuration enables efficient wireless charging by optimizing inductive coupling and heat dissipation, ensuring reliable power transfer and minimizing thermal issues across various device configurations.
Implementation Method 1
Wireless charging is an alternating current induction technology that works on the electromagnetic induction principle. The coil in a wireless charging device generates an electromagnetic field that generates current within the receiving coil.
Implementation Method 2
The second base has a positioning assembly corresponding to a first coil mechanism. The second base also comprises a second coil assembly magnetic permeability member, having a second magnetic permeability member surface facing the second coil assembly.
Data Source
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AI summary
A coil module is provided, including a second coil mechanism. The second coil mechanism includes a third coil assembly and a second base corresponding to the third coil assembly. The second base has a positioning assembly corresponding to a first coil mechanism.