In the field of mobile phones and mobile devices, wireless charging is not a new technology. With BMW, Rongwei and other car companies successively launching wireless charging systems for cars, it saves a lot of trouble of pulling and inserting guns compared to charging piles, and is also more convenient and safe.
In fact, the principle of wireless car charging and wireless mobile phone charging is basically the same, both use the principle of electromagnetic induction, the secondary conversion of electrical energy to the battery pack head.
In terms of the wireless charging method for electric vehicles, it is divided into static wireless charging and dynamic wireless charging.
Static wireless charging is used to charge an electric vehicle while it is parked, while dynamic charging is used to charge an electric vehicle while it is in motion.
Dynamic wireless charging technology for electric vehicles is mainly through the power supply rail buried under the ground in the form of high-frequency alternating magnetic field transmission of electrical energy to the vehicle running on the ground within a certain range of the receiving end of the electrical energy pick-up mechanism, and then to the vehicle energy storage equipment power supply, can make the electric vehicle with a small amount of battery pack, extend its range, while the electrical energy supply becomes more safe and convenient.
However, compared to the low-voltage, low-current, mild and low-cost wireless charging devices for mobile phones, wireless charging for electric vehicles is currently facing a number of problems. Firstly, the cost of coils and electricity used in wireless charging equipment is high; secondly, the transmission power of wireless charging for electric vehicles is very high, generally more than 10kW, and the safety of electromagnetic radiation cannot be ignored; at the same time, when wireless charging for electric vehicles, the two-way flow of electricity will have a series of effects on the power grid.
Luoyang Grasen Power Technology Co., Ltd is a professional AC home charger and DC fast charger EV supercharger manufacturer for 11 years in China, the charging connectors can be any two of CCS1/CCS2/CHAdeMO/GBT. Please enter our website for more information: https://www.grasen.com. Please send email to sales@grasen.com for inquiry.
-- Marcus Groll，A Charging Station Owner in UKRAINE
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