This article to talk about electric bicycle wireless charging, as well as electric vehicle wireless charging technology immature corresponding knowledge points, I hope to help you, do not forget to collect the site oh. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, Motorcycle which has mobile phone wireless charging
1, there are a number of motorcycles on the market can be wireless charging through mobile phones. First of all, the electric vehicles of shared bicycle brands such as Xiaoming Bike and ofo Yellow car also support wireless charging through mobile phones; Secondly, there are some specialized electric bicycle brands, such as riding track, Jiujiu, etc., which also have mobile phone wireless charging function. The mobile phone charging function of these motorcycles is mainly achieved through the USB interface or wireless charging seat on the car body.
2, shared electric bicycle is a new way of travel, there are many brands on the market to choose from. Among them, the more well-known shared motorcycle brands include street rabbit, riding electric, pine cone, honey fruit motorcycle, Mango motorcycle, small fish motorcycle, bee motorcycle and Baimi motorcycle. The emergence of these brands has brought more convenience to our travel.
3, there are eight shared motorcycle brands on the market, they are street rabbit, riding electric, pine cone, honey fruit motorcycle, Mango motorcycle, small fish motorcycle, bee motorcycle and Baimi motorcycle. The main use of shared motorcycles is to solve the problem of commuters leaving the publicThe needs of long-distance, business trips or tourism. Users only need to register through the mobile software and scan the code to easily use the shared car.
4, from the frame of the "riding music" words, this should be a "cool ride" bike, it is reported that this is a cool ride and Haier cooperation launched a shared bike, using Haier's wireless charging module. However, this "charging treasure" can only charge mobile electronic devices such as mobile phones when riding, and comes with a mobile phone stand and three common data cables, so it is also called "charging version" shared bicycles. The price is also "beautiful", 5 yuan for half an hour.
Principle of wireless charging: electromagnetic induction. The charging base and the mobile phone terminal have built-in coils respectively. When the two are close, the transmitting coil generates a certain current in the mobile phone receiving coil based on the alternating current of a certain frequency through electromagnetic induction, thus transferring the electrical energy from the transmitting end to the receiving end, and then starting to supply power to the mobile phone from the charging seat. Magnetic resonance.
Wireless charging, also known as inductive charging, non-contact inductive charging, derived from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply equipment (chargerThe energy is transmitted to an electrical device, which uses the received energy to charge the battery and at the same time for its own operation.
The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and then converted into a current to be transmitted to the intelligent terminal. 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 output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.
The principle of wireless charging technology is "magnetic electricity",In simple terms, the charging device and the two "magnetic devices" installed on the mobile phone device are induced to each other and form an electric current. At present, products supporting wireless charging have appeared in mobile phones, electric vehicles, smart furniture and other fields. Among them, in the mobile phone industry, the "Qi standard" is the most common, and Qi labels are often used in the packaging of many mobile phones and wireless chargers.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction type wireless charging, when the power supply of the current throughThe coil (the power supply coil of the wireless charger) will generate a magnetic field, and other unenergized coils (the electric coil on the phone side) will generate current near the magnetic field, charging the phone.
Finally realize wireless charging. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, and ZTE's electric vehicle wireless charging uses induction mode. High-power wireless charging usually uses resonance (most electric vehicles are charged this way) to transfer energy from the power supply device (charger) to the electrical device. The device uses the received energy to charge the battery and provide energy for the battery's own operationAmount.
1, as for the electromagnetic wireless charging scheme, aluminum can also be used to replace copper as raw materials to a certain extent, thereby reducing manufacturing costs. 2, it is worth mentioning that the Ministry of Industry and Information Technology recently issued the "Wireless charging (power transmission) equipment radio management interim provisions", clearly the mobile phone and other mobile equipment charging power ceiling increased to 80W, and the management provisions are also suitableWireless charging for electric vehicles. This has undoubtedly injected new impetus into the development of wireless charging technology for electric vehicles. In short, electric vehicle wireless charging technology still faces many challenges, but its development prospects are broad.
3, then, if the car can also be charged wirelessly, that is, stop charging, and even charge while running, so that does not solve the major pain point of electric vehicles now? Recently, the Ministry of Industry and Information Technology issued regulations to raise the charging power limit of mobile phones and other mobile devices to 80W, and apply wireless charging technology to electric vehicles. This means that the era of wireless charging for electric vehicles may be coming.
4,Among them, in the specific application of electromagnetic induction, the electric coil needs to be installed on the chassis of the car, the power supply coil is installed on the ground, and then the electric vehicle is placed inside the power supply coil, at this time the power supply coil will automatically use alternating current, with the principle of electromagnetic induction to make the electric coil form a certain voltage and current, in order to realize the intelligent charging of electric vehicles.
It's true. This way of charging is very fresh and convenient, but there are concerns about radiation. right