Switchable Magnetic Charging Alignment for Easy Detachment
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Solution Overview
Problem
Existing wireless charging technologies for electronic devices are inconvenient as they often attract the charger and device strongly, making it difficult for users to manually separate them, leading to potential falling or bumping issues when rapid separation is needed.
Innovation Solution
Incorporating a magnetic member with different magnetic portions and a control mechanism that allows the magnetic member to switch between attraction and separation states, enabling easy detachment of the electronic device from the charger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If magnetic components with opposite magnetic poles are disposed on the charger and electronic device to align the coils, then alignment accuracy is improved, but the electronic device and charger are always attracted to each other making separation difficult
Solution Approach 1:
The magnetic component's magnetic pole configuration is made dynamically switchable between a first configuration (providing alignment attraction) and a second configuration (providing separation repulsion). The controller changes the magnetic pole configuration based on charging state, enabling the system to transition from a static always-attracting design to a dynamic design that adapts to operational requirements.
Solution Approach 2:
The magnetic component's magnetic properties are changed by switching between different magnetic pole configurations. When the first magnetic pole faces the charger's second magnetic pole during alignment, they attract; when switched to the third magnetic pole, they repel. This parameter change in magnetic configuration allows the same component to serve dual purposes of alignment and separation.
2Productivity
If strong magnetic attraction is used to ensure coil alignment, then charging efficiency is improved, but sudden separation causes falling or bumping accidents
Solution Approach 1:
Before separation is needed, the controller proactively switches the magnetic component's configuration from the first magnetic pole (attraction) to the third magnetic pole (repulsion). This preliminary anti-action weakens or reverses the magnetic attraction before the user attempts separation, preventing sudden pulling forces that could cause falling or bumping accidents.
Solution Approach 2:
The system provides a cushioning effect during separation by using the repulsive magnetic force of the third magnetic pole configuration. This repulsive force acts as a buffer that gradually reduces the strong attraction force, preventing abrupt separation and potential damage from falling or bumping.
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 solution enhances user convenience by allowing easy and safe separation of the electronic device from the charger, preventing accidents due to sudden pulling or emergencies.
Implementation Method 1
The wireless charging apparatus generally implements charging through magnetic induction. For example, a charger is provided with a transmitting charging coil, and a charged electronic device is provided with a receiving charging coil. The transmitting charging coil and the receiving charging coil are coupled to each other for mutual inductance to implement wireless charging.
Implementation Method 2
a magnetic component with opposite magnetic poles usually needs to be disposed on the charger and the electronic device, to align the transmitting charging coil and the receiving charging coil with each other by using a characteristic of mutual attraction of the opposite magnetic poles.
Data Source
AI summary
An electronic device, and a control method are provided. The electronic device includes: a first magnetic member and a first control member. The first magnetic member includes a first magnetic portion and a second magnetic portion. The first magnetic portion is different from the second magnetic portion. The first control member is configured to control the first magnetic member to switch between a first state and a second state. When the first magnetic member is in the first state, the first magnetic member and a second magnetic member of a charger are attracted to each other. When the first magnetic member is in the second state, the first magnetic member and the second magnetic member are separated from each other.