How to balance magnetic strength and magnetic persistence in mobile phone wireless charging magnet magnetic ring?
Publish Time: 2025-01-07
As mobile phone wireless charging technology becomes increasingly mature, magnet magnetic ring, as a key component in the wireless charging system, plays a pivotal role. It is not only responsible for adsorbing the mobile phone tightly on the charging stand to ensure the stability and efficiency of the charging process, but also carries the important mission of balancing magnetic strength and magnetic persistence.
Magnetic strength is an important indicator to measure the attraction ability of magnet magnetic ring. During wireless charging, a sufficiently strong magnetic force can ensure that the mobile phone fits tightly on the charging stand and reduce the decrease in charging efficiency caused by position offset. However, excessive magnetic force may also bring some problems, such as difficulty in removing the mobile phone and unnecessary pressure on the internal components of the mobile phone. Therefore, when designing a magnet magnetic ring, it is necessary to reasonably control the magnetic strength while ensuring sufficient adsorption force.
Magnetic persistence is a measure of the ability of the magnet magnetic ring to maintain magnetic performance for a long time. Over time, the magnet may gradually lose its magnetic force due to environmental factors (such as temperature, humidity) or changes in the internal microstructure. In order to extend the service life of the magnet magnetic ring and ensure its long-term stable adsorption performance, it is necessary to focus on improving the magnetic persistence.
To balance the magnetic strength and magnetic persistence, it is necessary to comprehensively consider the selection of magnet materials, magnetic circuit design, and manufacturing process. First of all, the selection of high-performance magnetic materials is the basis. Such materials usually have high magnetic energy product and coercive force, which can improve magnetic persistence while ensuring magnetic strength. Secondly, by optimizing the magnetic circuit design, such as adopting reasonable magnetic pole arrangement and magnetic shielding measures, magnetic leakage and magnetic interference can be effectively reduced, and the magnetic utilization efficiency can be further improved. Finally, fine manufacturing process is also a key factor in ensuring the stability of the performance of the magnet ring. Including the magnetization process and surface treatment of the magnet, it will affect the magnetic strength and magnetic persistence.
In practical applications, the magnet ring also needs to be customized according to the specific needs of the mobile phone wireless charging system. For example, for different brands and models of mobile phones, the shape, size and magnetic strength of the magnet may need to be adjusted to ensure the best charging effect and user experience.
The balanced design of the mobile phone wireless charging magnet magnetic ring is a comprehensive technical challenge. Through reasonable material selection, optimized magnetic circuit design and fine manufacturing technology, the magnetic strength can be guaranteed while improving the magnetic durability, providing strong support for the development of mobile phone wireless charging technology.
