Unmanned underwater submarines (abbreviated as UUV) are playing an increasingly important role in surveillance and other military operations, but their biggest drawback is that they still need to go up or land to charge the battery, and they are vulnerable to attacks when they are floating and charging. Need more advanced charging technology as support. Recently, the U.S. Navy is developing a charging station for underwater unmanned submarines, and drones can be charged without landing.
Wireless charging technology has also become an inductive charging technology that has been implemented on many smartphones and tablets. You just need to put the phone on a charging stand. The wireless charger can emit an alternating magnetic field, causing an alternating current in the receiving coil of the device. However, compared with wired charging, wireless charging has become relatively slow.
At the same time, the United States Navy has begun to vigorously develop underwater drones. For example, fish-shaped robots are increasingly used, including investigations, exploration, mapping of the seabed, and anti-submarine warfare. Because they are powered by electricity, they are very quiet as they move forward and can dive far away from the mothership. But the problem is that these submersibles that float on the sea cannot be recharged on their own and must be returned to the base for humans to help connect it to the charging pile.
So people think of using wireless methods to solve this problem and install the charging piles on the seabed far from the land, thus saving manpower.
A few years ago people were testing in the Pacific Ocean. Engineer Wayne Liu sealed his cellphone in a plastic bag and placed it on a wireless charging pad a few feet down. The phone was successfully charged. In July of this year, engineers transferred 2 kilowatts of electricity from underwater wireless charging stations to a naval mid-range self-driving car. Perhaps one day, the Navy’s unmanned submarines can also be refueled in this way.
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