1. The core magnetic resonance medium and long distance wireless charging developed by Spurotin can successfully achieve wireless charging within one meter.
2, currently known reports, the farthest distance is 10 meters, using electromagnetic wave technology. The existing wireless charging technology uses magnetic field, electromagnetic wave, laser, ultrasonic and other energy transfer media. The 10-meter technology mentioned above, which uses electromagnetic waves as a medium, remains in the laboratory stage. Currently commercially availableIt is mainly the technology of magnetic field as the medium, which is divided into magnetic induction and magnetic resonance 2 technologies. In fact, the current technology can achieve effective power transmission within a range of 3 feet to 4 feet, but this also needs to be verified by relevant organizations. I believe that in the next 5 to 10 years, or even sooner, long-distance wireless charging will enter everyone's life.
4, and now, the Japanese media has brought more exciting news: a remote charging technology based on radio waves is gradually becoming practical in Japan, its principle is similar to Wi-Fi, can be 10 meters away for robots, electronic pricesSignatures and devices such as smartphones provide electricity. U.S. wireless power provider Ossia, along with companies such as Energous and Powercast, reportedly plans to launch the service in Japan in 2021.
Advantages: The equipment using wireless magnetic induction charging can be invisible, the equipment wear rate is low, the application range is wide, and the public charging area is relatively reduced; High technical content, easy to operate, can implement relatively long distance wirelessThe conversion of electrical energy. Disadvantages: Although the equipment has high technical content, the economic cost of the equipment is higher and the maintenance cost is large; Because of the realization of long-distance high-power wireless magnetoelectric conversion, the energy consumption of the equipment is high.
Advantages: non-contact, no wire, movable. Disadvantages: short distance, small power, poor efficiency. Low efficiency: energy storage and transmission efficiency is less than real contact. Slow charging speed: Due to low efficiency, the charging speed is slow at the same input power.
Mobile phone wireless charging Because there is no need to plug and unplug the charging cable frequently, the data interface wear of the mobile phone will be reduced a lot. Meanwhile, the phone charges wirelesslyThe magnetic field is mainly the technology of the medium, which is divided into magnetic induction and magnetic resonance 2 technologies.
The core magnetic resonance medium and long distance wireless charging developed by Spurotin can successfully achieve wireless charging within one meter.
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.
1, the use of electromagnetic induction principle for charging equipment, the principle is similar to the transformer, through the transmitter and receiver end set coil, transmitter coil under the action of power to send electromagnetic signals, the receiving end coil to receive electromagnetic signals and electromagnetic signals into current, so as to achieve the purpose of wireless charging.
2, the basic principle of wireless charging is to convert the current into a magnetic field, and the magnetic field is transmitted through the air and converted into a current to be transmitted to the intelligent terminal. When the system is working, the input terminal will be AC mainsThe full bridge rectifier circuit is converted into direct current, or the 24V direct current terminal is used to supply power to the system. After passing through the power management module, the output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.
3, wireless charging system mainly uses the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of the magnetic field generated between the coils, the magic transmission of electrical energy, inductive coupling technology will become a bridge connecting the charging base station and equipment.