Modular Wireless Charging Assembly with Ferrimagnetic Shielding
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Solution Overview
Problem
Third-party manufacturers face challenges in configuring wireless charging devices that are compatible with mobile devices from different manufacturers, and there is a need for a modular wireless charging assembly that can be easily integrated into various charging devices and peripheral systems.
Innovation Solution
A wireless charging assembly comprising a housing, cap structure, ferrimagnetic sleeve, inductive coil, magnet, printed circuit board assembly (PCBA), and four-pin connector, which can be used in third-party charging devices and peripheral systems, providing wireless power transmission and additional features like liquid impermeability and electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a third-party manufacturer configures a wireless charging device to charge mobile devices from different manufacturers, then compatibility across different devices is improved, but device complexity increases due to the need for universal charging assemblies
Solution Approach 1:
The wireless charging device is divided into modular components: a charging assembly that can be removed and replaced, and a housing that provides structural support. This segmentation allows third-party manufacturers to configure different charging assemblies for different device types while using a common housing platform, thereby improving compatibility without proportionally increasing overall device complexity.
Solution Approach 2:
The charging assembly is designed as a universal component that can charge multiple types of mobile devices through standardized interfaces and configurations. The assembly includes a rechargeable battery, inductive charging coil, and control circuitry that can adapt to different device requirements, enabling one charging device to serve multiple functions across different device ecosystems.
2Ease of manufacture
If a modular wireless charging assembly is designed for easy integration into various charging devices and peripheral systems, then ease of manufacture is improved, but reliability may worsen due to increased assembly and disassembly operations
Solution Approach 1:
The charging assembly is designed as a self-contained modular unit with standardized mechanical and electrical interfaces. This segmentation enables easy integration into different charging devices and peripheral systems through simple attachment operations, while each module maintains its own internal reliability through integrated battery, coil, and control circuitry.
Solution Approach 2:
The charging assembly is pre-configured and pre-tested as a complete functional unit before integration into the charging device. The battery, inductive coil, and control circuitry are assembled and validated together, ensuring reliability is established before the modular assembly is installed in the final product, thereby reducing risks associated with repeated assembly and disassembly.
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
Enables seamless wireless charging across different devices and systems, enhancing compatibility and functionality while ensuring reliability and resistance to environmental factors.
Implementation Method 1
The inductive coil can be disposed within the recess between the bottom cap surface and the second face of the ferrimagnetic sleeve. The inductive coil can be configured to wirelessly transmit power across the charging surface.
Implementation Method 2
The ferrimagnetic sleeve can include first and second opposing faces, a central opening extending from the first face to the second face through the ferrimagnetic sleeve, and a recess surrounding the central opening and open at the first face.
Implementation Method 3
The magnet can be disposed within the central opening of the ferrimagnetic sleeve.
Data Source
AI summary
A charging assembly for wireless power transfer. In embodiments, the charging assembly comprises a housing, a cap structure, a ferrimagnetic sleeve, an inductive coil, a magnet, a printed circuit board assembly (PCBA), and a four-pin connector extending from a bottom surface of the PCBA. A ridge of the cap structure can be coupled to a lip of the housing. The housing can include a bottom housing surface having an aperture, and a sidewall extending between the bottom housing surface and the lip that extends outward from the sidewall along a perimeter of the housing parallel to the bottom housing surface. The four-pin connector can extend through the aperture of the housing. Some embodiments are directed to a charging device that incorporates the charging assembly.