Charging method and charging system for time-division multiplexing of electric vehicle charger

Abstract

The present invention relates to a charging station electric vehicle charging system, specifically, to a charging method and charging system for time-division multiplexing of electric vehicle chargers, including a charging unit, a charging busbar, a charging busbar switch, and a charging distribution distribution box , branch bus, terminal bus and charging control unit. The charging unit configures the terminal bus from the charging bus switch to the charging distribution box through the charging bus. The equipotential connection method is adopted between multiple charging distribution distribution boxes and the terminal bus, that is, the status of multiple charging distribution distribution boxes is equal, and the charging bus is multiplexed in turn in time-sharing, realizing the long-distance multiplexing of the charging bus, which not only saves A large number of cables, and improve the utilization efficiency of the charger, reducing the cost of charging electric vehicles.

Description

technical field [0001] The invention relates to a charging station electric vehicle charging system, in particular to a charging method and charging system for time-division multiplexing of electric vehicle chargers. Background technique [0002] Develop strategic emerging industries, promote industrial structure adjustment, accelerate the transformation of economic development mode, enhance international competitiveness, and promote economic and social development. trend. It is particularly important to provide convenient and safe energy supply for electric vehicles. [0003] At present, the traditional car charging station is composed of several integrated chargers or split chargers, and each charger is a charging terminal. During the charging process of electric vehicles, each charger can only be connected to one charging gun at a time, and only one electric vehicle can be charged. In this mode, there are disadvantages of low utilization efficiency of the charger and h...

AI Technical Summary

Problems solved by technology

In this mode, there are disadvantages of low utilization efficiency of the charger and high charging cost of electric vehicles

[0004] Furthermore, due to the high installation cost of the electric vehicle charging system, the charging station cannot configure a charger for each parking space, resulting in the need to wait in line when charging multiple electric vehicles at the same time, and the subsequent electric vehicles have to wait for the charging of the electric vehicles being charged to complete After that, wait for the card to be unlocked and draw the gun before you can swipe the card and insert the gun to charge. During the whole charging process, someone needs to be on duty, the charging time is very expensive, and it is very inconvenient to use.

[0005] Moreover, this traditional charging method, due to the high degree of human intervention and low degree of automation, cannot effectively use the valley electricity price at night to charge electric vehicles, which does not meet the requirements of energy conservation and environmental protection of electric vehicles.

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