The invention relates to the technical field of electric drive axles, in particular to an electric drive axle which comprises a high-voltage connector, a low-voltage connector, a motor controller, a motor, a speed reducer and a shell, the motor controller, the motor and the speed reducer are installed in the shell, the high-voltage connector and the low-voltage connector are arranged in the envelope range of the shell, the motor controller is integrated in a motor end cover, and the motor controller is integrated in a motor end cover. And a power semiconductor module of the motor controller is thermally pressed on the motor end cover. Compared with the prior art, the high-voltage connector and the low-voltage connector are in the enveloping range of the shell, the safety of the plastic wire harness connector under the collision condition can be effectively protected, internal wiring can be achieved, and the space of the whole vehicle is saved. The power semiconductor module is fixed in a thermocompression bonding mode, heat conduction performance is improved, thermal resistance is reduced, and durability is improved. The use of mechanical parts such as a mechanical shell, a cover plate and a supporting piece is reduced, the use amount of copper bars and connecting pieces in current energy transmission is reduced, and the cost is remarkably reduced.
本发明涉及电驱动桥技术领域,具体地说是一种电驱动桥,包括高压接插件、低压连接器、电机控制器、电机、减速器、壳体,壳体内安装有电机控制器、电机和减速器,高压接插件、低压连接器在壳体的包络范围内,电机控制器集成在电机端盖中,电机控制器的功率半导体模块热压接在电机端盖上。本发明同现有技术相比,高压接插件、低压连接器在壳体的包络范围内,能够有效保护塑料线束接插件在碰撞情况下的安全性,并可实现内部走线,节省整车空间。功率半导体模块采用热压接方式固定,提升导热性能,降低热阻,并提高耐久性能。本发明降低了机械壳体、盖板和支承件等机械件的使用,减少了电流能量传递中铜排和连接件的用量,成本降低显著。
Electric drive axle
一种电驱动桥
2022-05-13
Patent
Electronic Resource
Chinese
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 / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
European Patent Office | 2023
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