Electric vehicle charging pile It is mainly used to store electricity for electric vehicles. Nowadays, new energy vehicles are very consistent with the concept of environmental protection, and also solve the problem of fuel consumption. So I saw on the Internet that the charging speed of some car charging posts is fast and slow. What factors are causing this? Now let's take a look at the influencing factors?

1. In simple terms, the greater the output power of the car charging post, the less the battery charging time. But at this stage, the electric car charging post is divided into AC car charging post and DC charging post, which can be expressed separately. From the perspective of communication and AC poles, most of the charging poles or battery charging boxes of slow speed electric vehicles in China use 220v communication and AC batteries for charging. The input and output currents are respectively 16A or 32A, and the basic theoretical output power can be 3.3kW or 6.6kW respectively. Fully considering the 10% output power consumption, the charging rate of communication and AC batteries is relatively slow. For example, for general
For a pure electric vehicle with a battery capacity of 20kWhoc, the 3.3kW AC battery charging method, which is currently the mainstream product, must be 6-8 C before it can be fully charged. For the Telus 220v HPWC (output power wall mounted power adapter), the input and output current can reach 50A. The output power is 11kW. People need not think about it. 1. The harm of the car charging pile is simple. The higher the output power of the car charging pile, The less time it takes to charge the battery, but at this stage, the electric battery connection pile is divided into AC vehicle charging pile and DC charging pile. People can express it separately. From the perspective of communication and AC poles, most of the charging poles or battery charging boxes of slow speed electric vehicles in China use 220v communication and AC batteries for charging. The input and output currents are respectively 16A or 32A, and the basic theoretical output power can be 3.3kW or 6.6kW respectively. Fully considering the 10% output power consumption, the charging rate of communication and AC batteries is relatively slow.

2. Hazards of vehicle mounted charger In the whole process of vehicle communication AC battery charging, vehicle mounted charger will participate in the whole process of current conversion, generally
The AC current will be converted into current through the on-board charger and stored in the power lithium battery as electromagnetic energy. Therefore, according to the design concept of the vehicle mounted charger for the whole vehicle, the output power of the vehicle mounted charger must be matched with the communication AC output power, which is generally 3.3kW00, that is, the input and output current of the vehicle charging post using a higher output power is only at port 16A 0, and the battery charging rate is not fast, but it can be expected that, With the increase of the electric vehicle lithium battery power consumption, the output power of the on-board charger should be above 6.6kW in the future, so as to meet the customer's requirements for the battery charging rate. One time during the whole process of investigating the car charging pile, it was found that the charging of the Saab electric vehicle could reach 220V/32A. Through the solution, it was known that the output power of the car charger could reach 6.6kW, and the battery charging rate was much faster than E150EV.

3. The harm of power lithium battery lies in the same situation that the input and output at the end of the car charging pile are fixed and the output power is fixed. The larger the vehicle driving force battery capacity is, the more 0 the battery charging time will be, which is like the arithmetic problem of student a
It is very simple to fill a pool with water from a tap water pipe of the same specification. The larger the pool, the more time it takes to fill it. In addition, the specific energy of lithium battery, a primary raw material, is generally more than that of polymer lithium battery. For the same vehicle series, if the specified mileage is the same, 0 yuan rechargeable battery is undoubtedly less than polymer lithium battery, and the battery charging rate is certainly faster.

The above three main factors affect the charging speed of the instant electric vehicle charging post. The charging speed of the electric vehicle charging post directly affects the user experience, so we must understand it clearly.