Foldable Watch Charging Adapter with Rotatable Joint
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Solution Overview
Problem
The existing wireless charging solutions for smart watches are cumbersome due to the need to carry tangled USB cables and adapters, which complicates recharging and storage, especially when dealing with USB ports of varying orientations.
Innovation Solution
A foldable wireless charging adapter that includes a rotatable joint allowing the electrical connector to adjust to different orientations, enabling compatibility with various USB ports and a compact storage form, along with an optional interface adapter for converting between USB types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible USB cable and separate USB adapter are used to connect to USB ports with varying orientations, then compatibility with different USB port orientations is achieved, but the device becomes cumbersome and creates clutter due to tangled cables and multiple components
Solution Approach 1:
The patent combines the USB cable, USB adapter, and inductive power transfer cradle into a single integrated foldable charging adapter unit. The electrical connector housing integrates both the USB connector and the inductive charging coil assembly, eliminating the need for separate components and tangled cables while maintaining compatibility with various USB port orientations through the foldable arm mechanism
Solution Approach 2:
The patent employs foldable arms with rotatable joints that allow the electrical connector and inductive charging surface to dynamically adjust their orientations. The first foldable arm can rotate relative to the housing, and the second foldable arm can rotate relative to the first arm, enabling the device to adapt to different USB port orientations while maintaining a compact form when folded
2Adaptability or versatility
If an inductive power transfer cradle, USB cable, and USB adapter are provided separately, then functional completeness is achieved, but ease of operation is reduced due to the burden of carrying and managing multiple components
Solution Approach 1:
The patent integrates all charging components (inductive power transfer cradle, USB cable connection, and USB adapter functionality) into a single portable unit. The electrical connector housing contains both the USB connector interface and the inductive charging coil, with foldable arms that allow the entire assembly to be compacted into a small form factor for easy carrying in pockets or bags
Solution Approach 2:
The integrated charging adapter provides multiple charging functions through a single device: it can connect to USB ports through the electrical connector and simultaneously provide inductive charging through the integrated coil assembly. The foldable arms enable the same device to adapt to different USB port orientations (vertical, horizontal, left-facing, right-facing), making it universally compatible with various power sources
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 adapter simplifies recharging by allowing easy alignment with any USB port orientation, reducing clutter and enhancing portability, while maintaining compatibility with a wide range of power sources.
Implementation Method 1
a coil assembly including a planar electromagnetic induction coil wound about a central axis
Data Source
AI summary
A foldable watch charging adapter has a watch charging housing provided with an induction charge surface. The watch charging housing is coupled to a charge end of a charge arm. A joint rotatably couples a pivot end of the charge arm to a joint end of a connector arm; and an electrical connector is provided at a connector end of the connector arm. An angular interconnection orientation of the electrical connector may be adjusted by rotating the connector arm with respect to the charge arm about the joint. Further, a connection interface adapter may be included to increase the range of connection interfaces that may be utilized.