A power storage device of an embodiment of the present invention is mounted in a vehicle supplies power to in-vehicle devices, wherein the power storage device comprises: a first battery unit that has a plurality of battery cells connected in series between a pair of first input/output voltage charging/discharging terminals, and that supplies low-voltage system voltage via the pair of first input/output voltage charging/discharging terminals; a second battery unit that is connected in series to the high potential side of the first battery unit, that has a plurality of battery cells connected in series between the first battery unit and second input/output voltage charging/discharging terminals, and works together with the first battery unit to supply high-voltage system power via the low potential side of the first input/output voltage charging/discharging terminals and the second input/output voltage charging/discharging terminals; and a DC voltage converter that converts the DC voltage of the power supplied by the second battery unit, and that is capable of supplying power via the pair of first input/output voltage charging/discharging terminals. The power storage device can thus simultaneously supply low-voltage system power and high-voltage system power while maintaining reliability.
实施方式的蓄电池装置为,搭载于车辆而向车载用设备供给电力,具备:第1电池单元,在一对第1输入输出电压充放电端子之间具有多个串联连接的单电池,经由一对第1输入输出电压充放电端子供给低电压系统电力;第2电池单元,与第1电池单元的高电位侧串联连接,在第1电池单元与第2输入输出电压充放电端子之间具有多个串联连接的单电池,与第1电池单元协作而经由低电位侧的第1输入输出电压充放电端子以及第2输入输出电压充放电端子供给高电压系统电力;以及直流电压转换器,进行第2电池单元的供给电力的直流电压转换,能够经由一对第1输入输出电压充放电端子进行电力供给,因此能够维持可靠性且同时供给低电压系统电力与高电压系统电力。
STORAGE BATTERY DEVICE
蓄电池装置
2021-08-06
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |