Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission. Wireless magnetic charging distance , wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging Wireless magnetic charging distance , when the power supply current through the coil (wireless charger's power supply coil) will generate a magnetic field, its Wireless magnetic charge distance When his unenergized coil (the charged coil on the mobile phone) is close to the magnetic field, current will be generated to charge the mobile phone.
If the vivo mobile phone is used, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, the device that needs to be charged can be charged by contacting the wireless charger after being energized.
makes the charging distance greatly increased, the furthest charging distance can reach 35mm, easily realize the convenience brought by wireless. Application of this solution can realize wireless charging transmitter products on the desktop (non-metal or magnetic conductive material)Below, mobile phones, laptops and other devices conforming to the Qi standard can be placed on the desktop for wireless charging/power supply.
Wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base.
Radio waves. The principle is to convert environmental electromagnetic waves into current and transmit current through a circuit. This way the transmission distance is greater than 10 meters, suitable for long-distance low-power charging, and can also achieve automatic anytime, anywhereCharge up. WiFi wireless charging. It mainly consists of two components, one is a Wi-Fi access point (router), and the other is a customized charging sensor.
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. At present, the commercial technology on the market is mainly magnetic field as the medium, which is divided into magnetic induction and magnetic resonance 2 technologies.
3, the core magnetic resonance long distance wireless charging developed by Spurotin can successfully achieve wireless charging within one meter.
4, WiFi wireless charging: ten meters away Advantages: go with charge, in line with the concept of wireless charging Disadvantages: charging object positioning is not easy, waste of power Ultrasonic wireless charging: effective range close to 5 meters Advantages: 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.
5, it is expected that in the next 5 to 10 years, long-distance wireless charging will be popularized in daily life. In the future, wireless power supply will be widely used in various electrical appliances, such as household appliances and medicineMedical equipment, power tools, etc., realize the use of electricity while transmitting, without battery storage, and no longer need to charge in advance. With the advancement of technology, wires, plugboards and batteries will gradually be eliminated, wireless charging will be as invisible as air, and the use experience will be more natural and convenient.
6, new breakthrough in wireless charging technology: Wi-Fi charging in the near future The development of wireless charging technology has made significant progress, mobile phone wireless charging has become the norm in daily life. And now, the Japanese media has brought more exciting news: a remote charging technology based on radio waves is gradually moving to JapanUse, which works in a similar way to Wi-Fi, can power devices such as robots, electronic price tags and smartphones from up to 10 meters away.
Simply put, the wireless charger is actually a charging mode that relies on the energy of electromagnetic waves to convert electromagnetic waves into electrical energy.
Mobile phone space charging technology is to install the transmitter coil on the wireless charging base, install the receiver coil on the back of the mobile phone, when the mobile phone is near the charging seat to chargeBecause the ray coil is connected to the alternating current, the alternating magnetic field will be generated. The change in the magnetic field generates an induced current in the receiving coil, which transfers energy from the transmitting end to the receiving end, and finally completes the charging process.
The principle of electromagnetic resonance wireless charging technology is the same as the resonance principle of sound: an energy sending device and an energy receiving device are adjusted to the same frequency, and the energy of each other can be exchanged when resonating, so that the coil in one device can transfer electric energy to the coil in the other device at a distance to complete the charge.
1, wireless charger usage: the mobile phone standard charger and data cable connected to the wireless charger, and then the mobile phone is/horizontally placed in the wireless charger base left and right center position, you can achieve wireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguish, plug and play, convenient and quick.
2, wireless charger usage: the mobile phone standard charger and data cable connected to the wireless charger, and then the mobile phone is placed (vertical) or horizontally in the wireless charger base left and right center position, you can achieve wireless charging, the indicator light will breatheEffect, extinguished after 5 seconds, plug and play, convenient and quick. 3, you can buy a wireless charging receiver, paste it on the back of the mobile phone or insert the mobile phone charging port, the advantage of this method is that the cost is low, there is no need to replace the mobile phone or dismantle the internal phone, the disadvantage is that it may affect the beauty and feel of the mobile phone, as well as increase the wear and tear of the charging port.
4, first of all, you need to have a mobile phone that supports unlimited charging, such as iPhone X, iPhone8 plus, etc. Then you need to buy wireless chargers from formal channels, recommend to go to the official dealerBuy. Then power on the wireless charger, make sure there are no magnetic objects around before connecting the power. Then place it in a flat place to prevent the phone from slipping off it.
1, the wireless charging of Apple mobile phones uses the principle of electromagnetic induction. What is the principle of wireless charging for Apple mobile phones? The principle of wireless charging technology is actually the principle of electromagnetic induction. Children who have learned high school physics, I believe that everyone is very clear that electromagnetic waves are capableThe amount can be obtained through the electromagnetic coil, and then the coil will form a current, and finally through the integration of the circuit can be charged.
2, first of all, you need to have an APPLE mobile phone that supports unlimited charging, such as iPhone X, iPhone8 plus, etc. Then you need to buy wireless chargers from formal channels, recommend to go to Apple official dealers to buy. Then power on the wireless charger, make sure there are no magnetic objects around before connecting the power. Then place it in a flat place to prevent the phone from slipping off it.
3,Transfer from the transmitting end to the receiving end, complete charging.
The principle of millet air charging technology: the core is spatial positioning and air energy transmission. The self-developed air separation charging pile has 5 built-in phase interference antennas, which can conduct millisecond spatial positioning of the mobile phone and accurately detect the location of the mobile phone. A phase control array of 144 antennas transmits millimeter waves to the phone through beamforming. On the mobile side, Xiaomi has self-developed the miniaturized design of the antenna array, with built-in beacon antenna and receiving antenna array.
Xiaomi's air separation charging technology is actually realized by relying on Xiaomi's self-developed air separation charging pileThe built-in 5 phase interference antennas can conduct millisecond spatial positioning of the mobile phone and accurately detect the position of the mobile phone. The phase control array composed of 144 antennas can transmit the millimeter wave to the mobile phone through beamforming, and the mobile phone can receive it through the miniature beacon antenna, and then realize 5W long-distance charging within a few meters.
The technology relies on microwaves, which can travel through free space and are currently used in the field of communication. When it is applied in wireless charging scenarios, charging can be achieved by carrying energy. This feeling is really full of technology. Remote charging in technologyThe technical implementation has never been a big problem, the distance and charging time that this kind of interspace charging technology can achieve.
Principle of wireless charger Wireless charger is a device that uses the principle of electromagnetic induction to charge mobile phones. At the sending end and the receiving end, the wireless charger has a coil. There is an electromagnetic signal sent out in the sending single coil, and the receiving single coil can receive the electromagnetic signal sent out, and then the electromagnetic signal is converted into current, and the current enters the mobile phone, so as to achieve the effect of wireless charging.
, mobile phone space charging is the electromagnetic induction form of the transmitter device has a transmitter coil, connectedThere is a receiving coil on the receiving device, and the principle of electromagnetic induction transmission of energy between the two coils is to achieve the purpose of long-distance transmission of electric energy through electromagnetic conversion. The mobile phone long-distance charging device is a wireless charging and emission scheme that meets the requirements of ROHS.