Wireless Charging Pack Magnetic Alignment Mechanism
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Solution Overview
Problem
Wireless charging technologies, particularly inductive and resonant charging, face challenges with precise alignment requirements between emitter and receiver coils, leading to inefficiencies and complex systems, and often fail to function when alignment is not achieved.
Innovation Solution
A battery pack with a magnetic connection system using a magnet or magnetic metal to align and secure the battery pack to a device, allowing for efficient wireless charging by positioning the emitter coil in communication with the device's receiver coil without blocking the electric flow path, and optionally using a stencil for precise alignment and indicator lights for proper placement confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a magnet or magnetic metal is added to enable magnetic connection and alignment, then alignment precision and ease of operation are improved, but the device complexity increases due to additional components
Solution Approach 1:
The magnet or magnetic metal is integrated into the battery pack body, combining the alignment function with the existing charging components. This merging approach improves alignment precision without significantly increasing overall device complexity, as the magnetic element serves both alignment and structural purposes.
Solution Approach 2:
The magnet or magnetic metal acts as an intermediary element between the battery pack and the device, enabling magnetic attraction and precise alignment. This intermediary component facilitates the connection without requiring complex mechanical alignment mechanisms, thus improving precision while maintaining relatively simple device architecture.
2Ease of operation
If the magnet or magnetic metal is positioned for magnetic connection, then ease of operation is improved, but it may block the electric flow path of the coils
Solution Approach 1:
The magnet or magnetic metal is positioned in a specific location within the battery pack body where it provides magnetic connection functionality without interfering with the electric flow path of the coils. This localized positioning ensures that different regions of the battery pack have different functions: the magnet area for alignment and the coil areas for electromagnetic induction, thus maintaining both ease of operation and charging reliability.
Solution Approach 2:
The magnetic connection is achieved through magnetic attraction forces acting in a dimension perpendicular to the plane of the coils, while the electric flow path remains in the plane of the coils. By utilizing different spatial dimensions for magnetic alignment and electromagnetic induction, the system avoids interference between these two functions, ensuring both ease of operation and reliable charging.
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 convenient and efficient wireless charging of devices by ensuring proper alignment and maintaining electric flow, improving charging efficiency and user convenience, while being adaptable for various device configurations and charging methods.
Implementation Method 1
One of a magnet or magnetic metal is stored within the body to allow magnetic connection of the body to a device to be wirelessly charged
Implementation Method 2
a battery pack which can wirelessly charge a battery-powered device... a battery located within the body and in communication with a receiver coil to receive an electric charge
Implementation Method 3
The battery is also in communication with an emitter coil to provide a wireless charge
Data Source
AI summary
A wireless battery pack is provided which may be magnetically connected to a device to be charged having the capability for wireless charging. The battery pack includes an emitter coil and battery to provide wireless charging to a battery powered electronic device which is capable of wireless charging, including but not limited to cellular telephones.