Electric car battery charger time division multiplexing charging method and system

Abstract

The invention relates to a charging station electric car charging system and particularly relates to an electric car battery charger time division multiplexing charging system and charging method. The system comprises a charging unit, a charging bus, a charging bus switch, a plurality of charging branch distribution boxes, branch buses, a terminal bus and a charging control unit. The charging unit configures the terminal bus to the charging branch distribution boxes by the charging bus switch through the charging bus. The plurality of the charging branch distribution boxes and the terminal bus are in equipotential connection, that is, the positions of the plurality of the charging branch distribution boxes are equal to perform multiplexing on the charging bus in a time-division and alternate mode to achieve remote multiplexing on the charging bus. By means of the method and the system, a large number of cables are saved, the battery charger utilization efficiency is improved, and the electric car charging cost is reduced.

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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