Electric vehicle wireless charging technology through buriedThe power supply guide rail under the ground wireless tamper transmits electrical energy in the form of high-frequency alternating magnetic field wireless tamper to the vehicle receiving end of the electric energy picking mechanism
CarThe breakthrough of wireless transmission technology is to find a way to "catch" electromagnetic waves, that is, to use the "resonance" principle of physics - two objects with the same vibration frequency can efficiently transmit energy. The system consists of the main circuit located outside the car and the secondary circuit, rectifier and drive system located inside the car.
The principle of wireless car charger is to use ampere's law and Faraday's law, through the time-varying magnetic field generated by the power transmitter, the electromotive force is generated in the appropriately positioned power receiver, so as to charge the mobile phone. The mainstream wireless car charging has two ways of front loading and rear loading. Let's look at oneLet's talk about how wireless car charging works.
The basic principle of wireless charging: electromagnetic induction: a certain frequency of alternating current in the primary coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end.
Wireless charging system mainly adopts the principle of electromagnetic induction. Wireless charging usually adopts electromagnetic induction, energy coupling through the coil to achieve energy transfer. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. After passing through the power management module, the DC output passes 2MThe active crystal oscillator is converted into high frequency alternating current to supply the primary winding.
The wireless charging principle of the car is by converting electrical energy into electromagnetic waves, which are then sent to the receiver, and then the electromagnetic waves are converted into electrical energy. Charging technology is not complex, mainly the use of electromagnetic induction and magnetic resonance, but the biggest difficulty of wireless charging is that the lack of a unified standard, charging time is too long, efficiency is too low, high cost.
Qi wireless charging refers to shouldUsing Qi wireless charging standard to electromagnetic induction for mobile phones, cameras and other handheld low-power equipment wireless charging technology. Qi Wireless charging standard by the Wireless charging Alliance (Wireless Power Consortium, referred to as WPC) initiated and developed, is currently the world's widely recognized wireless charging standard. Including Apple, Samsung, Nokia and other world-class enterprises to Qi standard as their terminal equipment wireless charging technical standards.
The iPhone 15's wireless charging function is based on the Qi wireless charging standard. Qi is the world's first to promote wireless chargingThe Wireless Power Alliance (WPC), a standards organization for electrical technology, has introduced the "wireless charging" standard, which has two characteristics: convenience and versatility. Different brands of products, as long as there is a Qi logo, can be charged with Qi wireless charger. To use the iPhone 15's wireless charging feature, two conditions need to be met.
Apple XR uses the Qi standard wireless charging technology, which is a wireless charging method based on the principle of electromagnetic induction. Users simply place a charger that supports the Qi standard on the back of an Apple XR phone to achieve wireless charging. At the same time, Apple also launchedHealth is a touchy subject; The process of wireless charging will produce huge energy loss and a lot of heat (the same as the charging pile), with the increase of power will release more heat, which has become a major technical difficulty to improve the wireless charging power (the greater the power, the hotter).
3, second, wireless charging in the home application will reduce the laying of lines, reduce the occurrence of power failures. All cell phones, tablets, and TVS will no longer need power cords, and all you'll have to worry about is whether the electrical signals in your home will be strong enough, just as you worry about cell phone signals today. When the technology matures, you don't have to worryI forgot to charge my phone. To sum up, I think this event can symbolize that people's living standards are steadily improving, and the use of fresh technology will make everyone's life rapidly change and improve. In addition to changing people's way of life, science and technology can also change ordinary people's cognition of science and technology.
Main features From the theory of wireless charging hand , wireless charging technology Convenience: non-contact, one-to-many charging compared with the general charger, reduces the trouble of plugging, but also avoids the interface is not applicable, poor contact and other phenomenon, the elderly can also be very convenient to use. (2) Versatility: a charger can charge multiple loads, and a family can buy itOne charger is enough for the whole family. Abstract: Wireless charging is a new technology, compared with the traditional data cable charging method, wireless charging can not be transmitted through the cable to charge the mobile phone, with safe and harmless, low power loss rate, convenient and other characteristics.