wireless watch charging coil

The wireless watch charging coil is an important hardware component in the wireless charging mobile phone technology. The wireless charging coil of the smart watch is required to have the characteristics of small size, convenient portability, intelligence, and high charging efficiency. This wireless charging technology is favored by the majority of watch manufacturers. Due to the novel charging technology, the product is more competitive in the market compared with traditional charging watches.

Wireless charging originates from wireless power transmission technology. The principle of wireless charging coil is that through near-field induction, the wireless charging device conducts energy to the charging terminal device, and the terminal device converts the received energy into electrical energy and stores it in the device's battery. There are four main types of wireless charging solutions currently in use: electromagnetic induction charging, magnetic field resonance charging, radio wave charging and electric field coupling. At present, not only the application of wireless watch charging coils has been popularized, but also in 5G, smart cities, Smart homes, the Internet of Things, smartphones, new energy vehicles, unmanned vehicles, and the development bottleneck of portable devices are all strongly promoting the development of wireless charging technology.

Wireless watch charging coil size parameters (mm)