With the support of the government, new energy vehicles have developed rapidly in recent years. More and more people are choosing to accept the environmentally friendly way of traveling. However, the current problem facing new energy vehicles is charging. The primary consideration for the prospective car owner. Compared with wired charging piles, wireless charging has many advantages and can adapt to the future development trend of new energy vehicles.
What are the advantages of wireless charging?
At present, the popularity of wireless charging piles will take time, but it has already shown many advantages, such as high security, easy to use, and easy to install. Since the wireless charging pile can be installed in a distributed layout, the pressure on the power grid can be reduced, and the electric vehicle can be charged without a fixed place, and the degree of freedom is higher.
Development status of wireless charging piles
On August 23, the Shanghai International Charging Pile Expo was officially opened. After visiting a number of exhibitors, the reporter found the only company that exhibited the wireless charging pile of the car--Zhonghui Chuangzhi Wireless Power Supply Technology Co., Ltd. It is understood that the wireless charging pile exhibited at this time is a new generation of wireless charging piles based on the latest standard released by SAE on the basis of the previous 6.6 kW. The power can reach 7.7kW, the average transmission efficiency is over 92%, and the efficiency of the wired charging pile is basically the same, the transmission distance can reach 200mm, and the charging efficiency and transmission distance are greatly improved on the original basis. At the same time, this electric car can be used to control the operation and control of new energy vehicles in real time through the mobile phone app. From the perspective of technical maturity, the demand for commercialization has been met.
Since wireless charging piles are not yet fully popular, there are still people who are skeptical about the radiation problem of wireless charging. The person in charge of Zhonghui Chuangzhi Exhibition said that Zhonghui Chuangzhi's wireless charging facilities have already passed the EMF electromagnetic radiation test. The test results in the car, front and front positions are better than the International Non-Ionizing Radiation Protection Committee ICNIRP1998 recommended by the World Health Organization. The safety limit of 27μT given by the ICNIRP2010 standard is 409 times, 138 times and 3.8 times lower, respectively, without any harm to the human body.
Industry standards have been released, wireless charging doors are gradually open
At the end of May this year, after SAE released the wireless charging standard for electric vehicles, it caused widespread heated discussion in the new energy automobile industry at home and abroad.
After doing adequate preparation and basic technology research, China's own electric vehicle wireless charging standard also officially set sail. On August 24th, the China Electricity Council held the "Startup Meeting for the National Standards for Electric Vehicles for Wireless Charging". The conference invited the leaders of wireless charging technology such as Zhongxing New Energy and Zhonghui Chuangzhi to participate in the standard compilation. The formulation of this national standard will provide a guiding role for electric vehicle wireless charging technology, and strengthen industry management and guidance, further promote the popularization and application of wireless charging piles, and help new energy vehicles enter the era of wireless charging.
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