As a tribute to the 10th anniversary of the iphone, more and more information has been revealed about the iPhone8. Kgi securities owned by a prominent analyst Guo Ming ð « creates, said apple launched the iPhone 8 this year will be broadly used all glass shell, and make that adjustment is to make the iPhone support wireless Apple this move, no doubt further promote the development of magnetic parts industry.
The iPhone 8 will have an all-glass case with no mechanical buttons. That gives apple even more reason to use wireless charging. The data shows that the frequency of magnetic material used to provide wireless charging for apple is about 300khz, which is higher than the WPC standard of 130khz, so the transmitter can support a longer distance, which also puts higher requirements on magnetic material.
In fact, wireless charging is not new. Long before apple's patent application for wireless charging, LG had developed wireless charging based on magnetic resonance. It is also reported that huawei, LG, samsung and others will unveil their new models using wireless charging technology for the first time at the 2017 mobile world congress in Barcelona, Spain on February 27. Wireless charging isn't limited to phones. Dell has said it will launch a wireless charging laptop in May.
There are five industry chains in the wireless charging industry chain, including scheme design, power supply chip, magnetic material, transmission coil and module manufacturing. The magnetic materials mainly involve NdFeB permanent magnet, NiZn ferrite thin magnetic disc, MnZn ferrite thin magnetic disc, flexible ferrite magnetic disc and other magnetic materials.
The main component of wireless charging is a variety of magnetic separator made of soft magnetic ferrite material, which mainly plays the role of shielding coil interference and increasing the induced magnetic field. Based on the precision of wireless charging technology, the receiver puts forward higher requirements on the performance, size, stability and reliability of magnetic materials. At present, the world's leading technology in TDK, murata and other international giant hands, but with the domestic ndfeb research and development progress, industrial structure innovation and upgrading, patent core technology continues to improve, the comprehensive strength of enterprises continue to rise, the proportion of Chinese enterprises in this area gradually increased.