Qinzhou Electric Vehicle Maintenance Factory
The country attaches great importance to the development of new energy vehicle charging equipment, and all regions will naturally increase efforts to promote development. Taking Nanning as an example, it is estimated that by 2020, there will be about 21550 new energy vehicles in Nanning. In order to meet the charging needs of the majority of car users, by 2020, Nanning will need nearly 20000 charging poles and nearly 100 charging stations. At present, the development of electric vehicle public charging equipment in Nanning is still in the primary stage. At present, the number of electric vehicles and the number of charging piles are seriously unbalanced, and the phenomenon of vehicles without piles and piles without vehicles occurs from time to time. The main reason is that the all smart service platform has not been built yet and needs further improvement.
Qinzhou Electric Vehicle Maintenance Factory
The charging pile body is mainly composed of human-computer interaction unit, control unit, metering unit and safety protection unit. The human-computer interaction unit mainly includes: pile, LCD touch screen, card reading module and charging plug; The control unit mainly includes: main monitoring and auxiliary module; The metering unit is electric energy meter; The safety protection unit includes: leakage protection switch, anti fall switch, emergency stop switch, overvoltage and undervoltage protection unit.
Qinzhou Electric Vehicle Maintenance Factory
What should be paid attention to when charging electric vehicle batteries? When the electric vehicle starts and goes uphill, it is necessary to avoid emergency braking and acceleration as much as possible, because large current discharge will be formed during this process, which will damage the performance of the battery. There are also two points that need special attention when stopping for a long time. 1. Parking without power supply should be avoided: unlike traditional gasoline vehicles, electric vehicles have their own "unique taste" for the state of vehicle parking. If the "hungry stomach" is used too long, it will "rebel". When the electric vehicle is parked in the case of power loss, the battery is prone to sulfation, blocking the electric ion channel, resulting in insufficient charging and declining battery capacity. 2. Deep discharge shall be carried out regularly: when the electric vehicle is almost out of power, undervoltage protection will automatically occur, but during this process, its voltage is unstable, and it will also be up and down, causing repeated undervoltage protection status
Qinzhou Electric Vehicle Maintenance Factory
As the energy supply device of electric vehicle, the charging performance of electric vehicle charging post is related to the service life and charging time of the battery pack. This is also one of the aspects that consumers are most concerned about before buying electric vehicles. It is the basic principle for the design of electric vehicle charger to realize fast, efficient, safe and reasonable power supply for the power battery. In addition, the applicability of the charger to various power batteries should also be considered. The control system of the fast charger consists of: the control system of the fast charger adopts an intelligent variable pulse charging mode, that is, charging current pulse, including charging pulse T1, intermittent pulse T2 and discharge pulse T3.
Qinzhou Electric Vehicle Maintenance Factory
Although the proportion of new energy vehicles is increasing year by year, its absolute number is much less than that of fuel vehicles. According to the reporter, consumers are dissatisfied with new energy vehicles (mainly pure electric vehicles) mainly in the following two aspects: first, there are relatively few charging piles and charging time is long. Although it is convenient to install by yourself, it is an indisputable fact that in a big city like Beijing, there are only a few parking spaces of their own, and most of them are parked at the roadside. Second, the endurance mileage is not long enough. If you travel far, you will be in trouble once you cannot find the charging post. Chen Qingtai, president of the China Electric Vehicle Hundred People Association, believes that the basis for the rapid growth of electric vehicles is that the cost performance and convenience of electric vehicles should reach or exceed that of fuel vehicles. Therefore, in addition to technological progress, charging infrastructure construction must also keep pace.
Qinzhou Electric Vehicle Maintenance Factory
In order to popularize the application in any industry, it is essential to continuously reduce the cost. This is especially true for photovoltaic enterprises that are still in the cold winter. Photovoltaic power generation was once very expensive, but driven by economies of scale, the cost of photovoltaic power generation has been declining in recent years, and now it is very close to parity. All this depends on the continuous innovation of photovoltaic technology. Theoretically, a 1 square meter sunlight exposure surface can generate 1000 watts of energy at most. If you want to increase the total reception of existing solar panels, you must focus the light, which will cause the panel to burn out due to excessive temperature.
