Custom Design ev charging male connector plug outlet types manufacturer factory

The new energy vehicle charging station is similar to the automobile gas station, which is a kind of "power on" equipment. It is a high-efficiency charger, which can quickly charge mobile phones, electric vehicles, electric vehicles, etc.

According to the technology and service characteristics of electric vehicle power battery pack, there are certain differences in charging modes of electric vehicles. For the choice of charging scheme, there are three modes: conventional charging, fast charging and battery pack quick replacement system.

Conventional charging

The charging current of conventional charging (ordinary charging) is low, about 15A. Conventional battery charging methods adopt constant voltage or constant current charging with small current. Generally, the charging time is 5 ~ 8h, or even 10 ~ 20h.

1. Advantages and disadvantages analysis

The advantages of the conventional charging mode are: Although the charging time is long, the charger and installation cost are relatively low because the rating of the power and current used is not critical; It can make full use of the low power consumption period to charge and reduce the charging cost; It can improve the charging efficiency and prolong the service life of the battery.

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 operation needs.

1. Scope of application

The driving range of the electric vehicle is designed to be as large as possible to meet the needs of one-day operation of the vehicle, and only the night shutdown time is used for charging; Since the conventional charging uses a relatively low current to charge the battery, it can be carried out at home, in parking lots and in public charging stations; Conventional charging stations are generally large in scale, so that they can charge multiple electric vehicles at the same time.

Fast charging

The conventional battery charging method usually takes a long time, which brings a lot of inconvenience to the actual use. The emergence of fast charging batteries provides technical support for the commercialization of pure electric vehicles.

Fast charging, also known as emergency charging, is to provide short-term charging service for electric vehicles with large current within 20min ~ 2H of parking. The general charging current is 150 ~ 400A.

1. Advantages and disadvantages analysis

The advantages of fast charging mode are: short charging time; Long service life of rechargeable battery (can be recharged more than 2000 times); Without memory, it can be charged and discharged in large capacity, and 70% ~ 80% of the electricity can be charged in a few minutes; Since the battery storage can reach 80% ~ 90% in a short time (about 10 ~ 15min) after charging, which is similar to the refueling time, large-area parking lot can not be equipped when building corresponding charging stations.

The disadvantages are: the charging efficiency of the charger is low, and the corresponding work and installation costs are high; Due to the fast charging and large charging current, higher requirements are put forward for the charging technology and method and the charging safety. At the same time, the metering and charging design also needs special consideration.

1. Scope of application

The driving range of the electric vehicle is moderate, that is, the electric vehicle can be quickly recharged between vehicle operations to meet the operation needs; Since the corresponding high current demand may have a harmful impact on the public power grid, the fast charging mode is only applicable to special charging stations.

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