With people’s pursuit of a new type of environmental protection, coupled with a large amount of government support, new energy vehicles are becoming more and more popular. People often hear people talk about new energy electric vehicles. What follows is the speed of charging. Because the charging speed of electric vehicle charging piles directly affects the user's experience, let's take a look at what are the influencing factors?
1. The hazards of car charging piles. To put it simply, the greater the output power of the car charging pile, the shorter the battery charging time. However, at this stage, the electric steam-connected piles are divided into communication AC car charging piles and DC charging piles. People can separate and express it. . In terms of communication and exchange piles, most of the slow-speed electric vehicle charging piles or battery charging boxes in China are charged with 220v communication AC batteries. The input and output currents are 16A or 32A respectively, and the basic theoretical output power can be 3.3kW or 6.6 respectively. kW, 10% output power consumption is fully considered, and the charging rate of the communication AC battery is relatively slow. For example, for a pure electric vehicle with a general battery capacity of 20kWhoc, the current mainstream product 3.3kW communication AC battery charging method must be 6-8C before it can be fully charged. For Terras 220v HPWC (output power wall-mounted power adapter), the input and output current can reach 50A. The output power is 11kW, and people don’t need to think about it. 1. The hazards of car charging piles. Simply speaking, the higher the output power of car charging piles. , The shorter the battery charging time, but at the present stage, the electric steam-connected piles are divided into communication AC vehicle charging piles and DC charging piles. People can express them separately. In terms of communication and AC piles, most of the slow-speed electric vehicle charging piles or battery charging boxes in China are charged with 220v communication AC batteries. The input and output currents are 16A or 32A respectively, and the basic theoretical output power can be 3.3kW or 6.6 respectively. kW, 10% output power consumption is fully considered, and the charging rate of the communication AC battery is relatively slow.
2. The hazards of the vehicle's on-board charger. During the whole vehicle communication process of AC battery charging, the on-board charger will participate in the whole process of current conversion, and the general AC current will be converted into alternating current by the on-board charger for electromagnetic energy storage. Into the power lithium battery. Therefore, the electric vehicle charging pile manufacturer feels that the output power of the vehicle charging station design concept for the entire vehicle must be matched with the communication output power, usually at 3.3kW00, that is, the input and output of the vehicle charging pile with a higher output power The current is only at 16A port 0, and the battery charging rate is not fast enough, but it can be expected that with the increase in the power consumption of the lithium battery of electric vehicles, the output power of the on-board charger should be above 6.6kW in the future. Regulations on the charging rate of the battery. Once in the whole process of investigating the car charging pile, it was found that the Saab electric car can be charged at 220V/32A. Through the solution, it was found that the output power of the on-board charger can achieve 6.6kW, and the battery charging rate is much faster than that of the E150EV.
3. The hazard of the power lithium battery is the same as the input and output output power at the end of the car charging pile. The greater the driving force of the vehicle, the more the battery charging time will be 0, which is like a student's arithmetic problem. Fill the pool with water pipes of the same specification. The larger the pool, the more time it takes to fill the water. This principle is very simple. In addition, the specific energy of the raw material lithium battery is generally higher than the polymer lithium battery port, so for the same car series, if the specified mileage is the same, the 0 yuan rechargeable battery is undoubtedly less than the polymer lithium battery, and the battery charging rate is Of course, I'll talk about it quickly.
