To inhibit reverse connection between a low voltage power source and a DC/DC converter.SOLUTION: A power control unit (PCU) 2 according to an embodiment is disposed below an engine hood of a vehicle and converts electric power from a high voltage battery to supply the electric power to a driving motor. The PCU 2 includes: a driving circuit 20 which performs electric power conversion; a DC/DC converter 21 which steps down a voltage from the high voltage battery; a low voltage battery 22 which is connected to the DC/DC converter 21 and outputs a voltage lower than the voltage of the high voltage battery; and a housing 23 which houses the driving circuit 20, the DC/DC converter 21, and the low voltage battery 22.SELECTED DRAWING: Figure 3
【課題】低圧電源とDC/DCコンバータとの逆接続を抑制する。【解決手段】実施形態のPCU2は、車両のボンネット下に配置され、高電圧バッテリからの電力を変換して走行モータに供給するPCU2であって、電力変換を行う駆動回路20と、高電圧バッテリからの電圧を降圧するDC/DCコンバータ21と、DC/DCコンバータ21に接続されるとともに、高電圧バッテリの電圧よりも低い電圧を出力する低電圧バッテリ22と、駆動回路20、DC/DCコンバータ21及び低電圧バッテリ22を収容する筐体23と、を備える。【選択図】図3
DRIVING CIRCUIT UNIT AND VEHICLE
駆動回路ユニット及び車両
2021-09-27
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |