A prototype of a remote magnetic gear charging device. New energy vehicles represented by electric vehicles are one of the directions for the automotive industry. However, the current electric car is not mature enough, first of all reflected in its lack of endurance; secondly, charging electric cars is not very convenient. However, the rise of wireless charging technology in recent years is likely to help people solve these two problems. Although wireless charging can't increase the limit of the EV's cruising ability, the large number of wireless charging stations installed can, to a certain extent, solve the problem of insufficient cruising for the vehicle; even if wireless charging cannot be compared with fueling at the gas station, compared with wired charging. The convenience is self-evident. But how to achieve wireless charging for electric vehicles? When talking about wireless charging, it's easy to think of electromagnetic induction. However, if electromagnetic induction is used to wirelessly charge a car battery, it must use a high-frequency electromagnetic field. However, if a high-frequency electromagnetic field is used, the car can be charged, but the person in the car may become a magical four-man or a card. Qiu. Recently, Professor Lorne Whitehead from the University of British Columbia (UBC) has developed a healthy and effective wireless charging method. Instead of using an electromagnetic field, he used his own "remote magnetic gear" instead of the electromagnetic coil. The so-called "remote magnetic gear" is actually a pair of constantly rotating magnets, one being installed in the charger and one being installed in the car. A motor in the charger will drive the magnet to rotate, and the corresponding magnet in the car will start to rotate under the driving of the magnetic field, and the mechanical energy generated by the rotation will be converted into electric energy to realize the charging of the battery. Whitehead led the team to develop a wireless charging technology with a charging power of up to 3.3 kilowatts and a frequency of only one percent of that of a normal wireless charger. The lower frequency eliminates the possibility of interference from other devices and also provides security for the safety of the vehicle's personnel. Thanks to its simple design, the car does not need to be completely fixed in a certain position during wireless charging. (However, we estimate that the more accurate the location, the better the charging effect) Currently, the University of British Columbia has installed a wireless charging system for four electric school buses. Practice has proved that the charging efficiency of the wireless charging system can reach more than 90% of the wired seat charge, and the school's electric school bus is fully charged in only 4 hours. "A big problem with electric-powered cars is that users need to use charging lines to charge their cars. This is difficult to operate in tight spaces, and it can be annoying for chargeers in bad weather conditions. “David Woodson, general manager of UBC Building Operations, said, “Since we started testing the system, the response from drivers has been very positive. They just parked their cars. Within a fixed range, charging starts automatically." The remote charging system developed by Professor Whitehead’s team is currently only used in the charging of electric vehicles, but it is clear that this technology has a broader application space: mobile phones, computers, and even medical pacemakers may benefit from This new technology. Garden Deer Lights,Garden Flamingo Lights,Garden Crane Lights,Garden Giraffe Lights Sichuan Kangruntengpu Photoelectric Technology Co., Ltd. , https://www.krtoplighting.com
UBC has developed wireless charging stations that are already in use.