Conclusion: The new wireless charging technology developed by the Korea Institute of Science shows revolutionary capabilities, which can charge up to 40 smartphones within a range of 5 meters, indicating the possibility of bidding farewell to the era of wired charging. This is called a bipolar coilThe prototype technology of the resonant system, which relies mainly on inductive charging, is not only suitable for mobile phones, but also for other devices such as televisions and fans.
Generally about 0.9-2 meters high-power wireless charging transmission distance up to 5 meters wireless charging technology can be divided into low-power wireless charging and high-power wireless charging two ways. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction.
WiFi wireless charging: ten meters away Advantages: go with the charge, in line with the concept of wireless charging Disadvantages: chargingElectric object positioning is not easy, waste of power Ultrasonic wireless charging: effective range close to 5 meters Advantages: the technology is very safe; The receiver is cheap and small; Can be used for data transmission. Cons: The final product may not live up to expectations in terms of price, power, speed, and safety.
Is iphone8 Wireless charging technology fast? The iPhone8 does not support wireless fast charging. So its wireless charging is not fast at all. According to the actual measurement, it takes 5 to 3 hours to fill the mobile phone, which is equivalent to the effect of ordinary slow charging. Isn't there wireless charging technology that, at the current level of technology, is not practicalNow remote wireless charging.
1, but the advantages of wireless charging are also very obvious. Since there is no need to plug and unplug the charging gun, the convenience of charging is significantly improved, and the risk of electric shock is reduced. More importantly, if dynamic wireless charging mode is deployed, it can greatly reduce the amount of battery power carried by electric vehicles, reduce the cost of the vehicle, and completely solve the user's driving range anxiety.
2, second, wireless chargingIf electric technology wants to be truly popular, it also has high requirements for the precise positioning and intelligence of vehicles. Only when the vehicle is precisely parked in the charging space can the ground system establish a channel with the vehicle's on-board system and achieve charging. In the case of precise positioning, the same footprint, the number of electric vehicles using wireless charging compared with the traditional charging pile charging will be greatly increased, greatly improving the space utilization and charging efficiency.
3, low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction. High powerWireless charging High-power wireless charging usually adopts a resonant mode (most electric vehicles are charged in this way) by the power supply device (charger) to transmit energy to the electric device, the device uses the received energy to charge the battery, and at the same time for its own operation.
4, the wireless charging of electric vehicles is very strange to consumers, it is like we look at the concept car is a future scene. However, if it can be achieved, it can greatly alleviate the impact of inconvenient charging.
5. The race to build a universal wireless charging technology is in full swing. New and excitingWireless charging technology advances and products continue to emerge - some companies focus on one technology, while others support multiple technologies. But the lack of interoperability between the various technologies is still a big problem, because there is no unified wireless charging standard. The idea of wireless power transmission has been around for years.
6, compared with the traditional wired charging method, wireless charging with no charger connection, voltage stability, surge prevention and other advantages, has become an important development direction of EV charging. In addition to the advantages of convenience, safety, reliability and small footprint, it also has the following six advantages: wireless charging of electric vehicles can be carried outHigh information intelligence, reduce labor costs.
The idea of charging electric cars while driving is attractive because it seems to solve the problem of limited range of electric cars. However, at the current level of technology, electric vehicles are not yet able to achieve self-charging while driving. Charging an electric vehicle usually requires a plug-in charging station or a wireless charging pad. However, researchers and some car manufacturers are developing mobile charging technology.
From a technical point of view from an economic point of view from a technical point of view, it is possible to charge while runningThere are two ways to achieve this, one is wireless charging highway, and the other is solar charging. The technology for wireless charging transmission is called "magnetic resonance coupling". The two copper coils are adjusted to the same frequency to form a resonance, and one is placed every few kilometers.
To answer this question, we need to start from the development of wireless charging and its principle. In the 1830s, Michael Faraday discovered that changes in the surrounding magnetic field would create an electric current in the wire. In the 1890s, Nikola Tesla, an assistant to Edison's spectral radiant energy research project, had proposedIdeas for wireless power transmission.
1, Jinsheng Precision (300083) : The company has a wireless charging structure related patents, and is developing wireless charging ceramic battery cover technology. Klik (002782) : On the interactive platform, it said that it has the technical reserve of wireless charging, and will actively carry out the strategic layout and seize the opportunity to enter the market.
2, wireless charging concept has a total of 1Of the 4 listed companies, 2 wireless charging concept listed companies are traded on the Shanghai Stock Exchange, and the other 12 wireless charging concept listed companies are traded on the Shenzhen Stock Exchange. Below is a list of wireless charging concept stocks.
3, What are the wireless charging concept stocks? Xinwangda (300207) : The company's wholly-owned subsidiary, Prexis, is a member of the World Wireless Charging Alliance (WPC), and is also one of the 14 test centers authorized by WPC worldwide, which can independently complete the QI certification of wireless charging products; Mobile power supplies containing wireless charging functions have been developed and sold in bulk. Cis electronics (002138) : Wireless charging is one of the most important and expected fastest growing product lines in the future.
4, Apple wireless charging concept stocks are: Hengdian East Magnetic (002056) : Hengdian East Magnetic said on the interactive platform on September 6, 2017 that the company currently provides wireless charging disks to Apple.
5, so, what are the wireless charging concept stocks? The following are several wireless charging concept stocks recognized by the market: SAN 'an Optoelectronics (60070SH) : SAN 'an Optoelectronics is one of the well-known semiconductor lighting and display solution providers in China, and its wireless charging technology< p >