Electric vehicle charging stations and mobile phone charging stations are similar to car gas stations. They are a device that “powers up” batteries and mobile phones. It is a high-efficiency charger that can quickly charge electric vehicles, mobile phones, electric tricycles, and old-time scooters. “Electric vehicle fast charging stations” and hand charging stations can be set up at street shops, street communities, beside newsstands, storage sheds, betting points, etc., just like gas stations for cars. The electric vehicle charging station uses pulses, which has a good desulfurization effect. It can activate the battery first and then perform maintenance-type fast charging. It has timing, full alarm, computer fast charge, password control, self-identifying voltage, multiple protection, four-way Output and other functions, supporting universal output interface, can quickly charge all electric vehicles.
According to the technology and use characteristics of electric vehicle power battery packs, there are certain differences in the charging modes of electric vehicles. For the selection of charging schemes, there are three modes of conventional charging, fast charging and quick battery pack replacement.
Regular charging The normal charging (normal charging) charging current is low, about 15A. Conventional battery charging methods use constant current or constant current charging with a small current, and the typical charging time is 5-8 hours, or even 10-20 hours. (1) Analysis of advantages and disadvantages The advantages of the conventional charging mode are: although the charging time is longer, because the power and current ratings are not critical, the charger and installation cost are relatively low; it can take full advantage of the low power consumption to charge, and reduce the charging cost Improve charging efficiency and extend battery life. The main disadvantage of the conventional charging mode is that the charging time is too long, which is difficult to meet when the vehicle has emergency running needs. (2) Scope of application Design the electric vehicle’s driving range as much as possible. It needs to meet the day-to-day operation of the vehicle and only use the night outage time for charging. Because conventional charging uses a relatively low current to charge the battery, it can be used at home, parking lots and public charging stations Yes; conventional charging stations are generally large in size so that they can charge multiple electric vehicles at the same time.
fast charging The charging method of the conventional battery generally takes a long time, which brings a lot of inconvenience to practical use. The advent of fast-charging batteries has provided technical support for the commercialization of pure electric vehicles. Fast charging, also known as emergency charging, provides short-time charging services for electric vehicles within a short period of 20 minutes to 2 hours with a large current. Typical charging current is 150 ~ 400A. (1) Analysis of advantages and disadvantages The advantages of the fast charging mode are: short charging time; long life of the rechargeable battery (more than 2,000 times can be charged); no memory, can be charged and discharged with large capacity, and can charge 70% to 80% of electricity within minutes; because Charging in a short period of time (about 10 to 15 minutes) can make the battery storage capacity reach 80% to 90%, which is similar to the refueling time. Therefore, a large area parking lot may not be provided when the corresponding charging station is built. The disadvantage is that the charger has low charging efficiency and high corresponding work and installation costs. Due to the fast charging and large charging current, this places higher requirements on charging technology and charging safety, and metering charges Design also requires special consideration. (2) Scope of application The electric vehicle has a moderate driving range, that is, the rapid recharging of electricity in the interval between vehicle operations to meet operational needs; due to the corresponding high current demand may have a harmful effect on the public grid, the fast charging mode is only suitable for dedicated charging stations .
Mechanical charging Mechanical charging, or the battery pack quick replacement system, is achieved by directly replacing the battery pack of an electric vehicle. Due to the heavy weight of the battery pack and the specialization requirements for battery replacement, it is necessary to equip professionals with the help of professional machinery to quickly complete battery replacement, charging and maintenance. (1) Analysis of advantages and disadvantages The advantages of mechanical charging are: users of electric vehicles can rent fully-charged batteries, and replace the exhausted batteries, which is conducive to improving the efficiency of vehicle use, and also improves the convenience and quickness of the users. Charging during periods reduces charging costs and improves vehicle economics. From another perspective, it also solves problems such as charging time and stored charge, battery quality, long driving range, and price; the battery can be found in time. The problem of single battery in the group, repair work will have positive significance for battery maintenance work, and the reduction of battery pack discharge depth will also help to improve battery life. Several major problems faced by this model application are: standardization of batteries and electric vehicles; improvement of the design of electric vehicles, construction and management of charging stations, and battery circulation management. (2) Scope of application Vehicle battery pack design is standardized and easy to replace; in the operation of the vehicle, the battery needs to be replaced in time to meet the operation, the battery charging and the vehicle in the charging station can be professionally and quickly separated; because the rapid replacement of the battery pack requires specialization, the battery pack rapid replacement mode Only applicable to dedicated charging stations. In summary, each of the above three charging modes has its own characteristics and scope of application. Therefore, in the application, the above three methods can be organically combined to meet actual driving requirements.
1. Countdown display, automatic power off when time is up. 2. Equipped with protection circuit, with overload and short circuit protection. 3, easy to install and use, with 220V AC power can be installed and used. 4. Electronic currency counting, which is timely and well-understood, is more convenient for cooperative operation and management. 5, intelligent CPU coin recognition system, anti-fishing coins, anti-counterfeit coins, anti-shock functions. 6, full voice navigation, easy to instruct operation 7. Output voltage and current display. 8. Automatic identification of polarity, battery, voltage, and easy charging. 9. High economic benefits.