The invention provides a vehicle-mounted power supply device, a combined power supply module and a vehicle-mounted low-voltage power distribution unit, and the device comprises a power conversion circuit and a housing. A power battery in the vehicle can provide one path of power supply for the battery management system through the first direct current output port by using the power conversion circuit, and a low-voltage battery in the vehicle can also provide another path of power supply for the battery management system through the second direct current output port. Even if the power battery breaks down, the power conversion circuit is damaged or a load connected with the first direct current output port is short-circuited, the low-voltage battery can still continue to supply power to the battery management system through the second direct current output port, so that the power battery can work normally, and the usability and safety of the vehicle-mounted power supply device are guaranteed.
本申请提供一种车载供电装置、合路供电模块以及车载低压配电单元,该装置包括功率变换电路以及壳体,通过本申请提供的车载供电装置的结构,车辆中的动力电池既能利用功率变换电路通过第一直流电输出端口为电池管理系统提供一路供电,车辆中的低压电池还能利用第二直流电输出端口为电池管理系统提供另一路供电,即使动力电池故障、功率变换电路损坏或第一直流电输出端口连接的负载短路,低压电池还可以继续通过第二直流电输出端口为电池管理系统供电,从而使得动力电池能够正常工作,进而保证车载供电装置的可用性和安全性。
Vehicle-mounted power supply device, combined power supply module and vehicle-mounted low-voltage power distribution unit
一种车载供电装置、合路供电模块以及车载低压配电单元
06.08.2024
Patent
Elektronische Ressource
Chinesisch
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