The invention discloses a direct current charging and discharging device of a new energy automobile, and belongs to the field of charging and discharging of new energy automobiles. According to the direct-current charging and discharging device, only one high-voltage wire harness is arranged in a junction box, one end of the high-voltage wire harness is connected with a battery pack of the new energy automobile, the other end of the high-voltage wire harness is connected with a vehicle-mounted charger, and an MCU controller conducts direct-current charging on the battery pack through the high-voltage wire harness in the junction box; and the battery pack is respectively discharged to the MCU controller and the vehicle-mounted charger through the high-voltage wire harness in the junction box. According to the invention, charging and discharging of the battery pack are realized by only using one high-voltage wire harness, so that compared with the conventional three high-voltage wire harnesses, the use of a direct-current bus high-voltage wire is saved, and the cost is reduced.
本发明公开一种新能源汽车的直流充放电装置,属于新能源汽车充放电领域。该直流充放电装置中分线盒内部仅设置一根高压线束,高压线束的一端连接新能源汽车的电池包,另一端连接车载充电机,MCU控制器通过分线盒内部的高压线束为电池包进行直流充电,电池包放电时,电池包通过分线盒内部的高压线束分别放电至MCU控制器和车载充电机。本发明仅使用一根高压线束实现了电池包充电和放电,相对于现有使用的3根高压线束,节省了直流母线高压线的使用,降低了成本。
Direct current charging and discharging device of new energy automobile
一种新能源汽车的直流充放电装置
2024-05-10
Patent
Electronic Resource
Chinese
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