The invention provides a vehicle-mounted charging circuit. The vehicle-mounted charging circuit comprises a first battery pack, a first H-bridge circuit, a first resonance network circuit, a second battery pack, a converter, an isolation transformer, a second resonance network circuit, a second H-bridge circuit, a three-phase bridge inverter circuit and a motor. The first battery pack is connectedwith the first H-bridge circuit, the first resonant network circuit is connected with the first H-bridge circuit, and the second battery pack is connected with the converter and the primary side of the isolation transformer; the converter is connected with the primary side of the isolation transformer and forms a half-wave rectification circuit with the primary side, the primary side of the isolation transformer is separately connected with the first resonance network circuit and the first H-bridge circuit, and the secondary side of the isolation transformer is connected with the second resonance network circuit and the second H-bridge circuit; the second resonant network circuit is connected with the second H-bridge circuit, the three-phase bridge inverter circuit is connected with the second H-bridge circuit, and the motor is connected with the three-phase bridge inverter circuit, so that the size of the vehicle-mounted charging circuit can be reduced, and the charging power and thepower density of the vehicle-mounted charging circuit are improved.
本发明提供一种车载充电电路,包括第一电池组、第一H桥电路、第一谐振网络电路、第二电池组、换流器、隔离变压器、第二谐振网络电路、第二H桥电路、三相桥逆变电路和电机;第一电池组与第一H桥电路连接;第一谐振网络电路与第一H桥电路连接;第二电池组与换流器和隔离变压器的一次侧连接;换流器与隔离变压器的一次侧连接,并与一次侧组成半波整流电路;隔离变压器的一次侧分别与第一谐振网络电路和第一H桥电路连接,隔离变压器的二次侧与第二谐振网络电路和第二H桥电路连接;第二谐振网络电路与第二H桥电路连接;三相桥逆变电路与第二H桥电路连接;电机与三相桥逆变电路连接,可以减小车载充电电路的体积,提高其充电功率和功率密度。
Vehicle-mounted charging circuit
车载充电电路
2020-09-01
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 / 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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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