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实用新型
CN203967811U 电动汽车直流充电系统 失效 - 权利终止

电动汽车直流充电系统
摘要：
本实用新型公开了一种电动汽车直流充电系统，包括三相变压器、集中式电能转换单元、N个直流转换充电单元、N个充电箱；所述的三相变压器的输入端连接电网电线，三相变压器的输出端连接集中式电能转换单元的输入端，集中式电能转换单元的输出端连接直流总线；每个直流转换充电单元的输入端都连接直流总线；还包括N*N个开关单元、N个温度传感器、N个电流传感器、N个电压传感器、控制器单元；每个直流转换充电单元的输出端同时连接N个开关单元的输入端，每个直流转换充电单元同时连接的N个开关单元的输出端分别连接N个电池箱的输入端；本实用新型整个系统的控制较简单；整个系统的电能消耗较低，更加节能。
摘要（英）：

The utility model discloses an electric-automobile direct current charging system. The system comprises a three-phase transformer, a centralized electric energy conversion unit, N direct current conversion charging units and N charging boxes. An input terminal of the three-phase transformer is connected to a power-grid electric wire. An output terminal of the three-phase transformer is connected to an input terminal of the centralized electric energy conversion unit. An output terminal of the centralized electric energy conversion unit is connected to a direct current bus. An input terminal of each direct current conversion charging unit is connected to the direct current bus. N*N switch units, N temperature sensors, N current sensors, N voltage sensors and a controller unit are included. An output terminal of each direct current conversion charging unit is simultaneously connected to input terminals of the N switch units. Output terminals of the N switch units which are simultaneously connected to each direct current conversion charging unit are connected to input terminals of N cell boxes respectively. Control of a whole system is simple. Electric energy consumption of the whole system is low and energy saving is achieved.

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