The embodiment of the invention provides an electric engine, an electric propulsion device and an aircraft, and relates to the technical field of aircrafts. A driving motor of the electric engine is connected with a power motor, the radiator is provided with an air duct and connected with the power motor, the fan is in transmission connection with the driving motor, the driving motor drives the fan to rotate, the flow guide structure is provided with an air inlet side and an air outlet side in the axial direction of the fan, and the driving motor and the power motor are located on the air inlet side of the flow guide structure. The fan and the radiator are located on the air outlet side of the flow guide structure, the fan is located between the flow guide structure and the radiator, and the flow guide structure at least guides part of airflow on the air inlet side to the middle area of the fan. According to the electric engine provided by the invention, hot reflux formed between the fan and the radiator due to the flow velocity difference of air flow can be reduced, and reverse heating of the driving motor and the power motor by the hot reflux is reduced or eliminated, so that the air flow blown to the radiator is more uniform in distribution and speed, and normal operation of the power motor is ensured.
本申请实施例提供一种电动发动机、电推进装置及飞行器,涉及飞行器技术领域。电动发动机的驱动电机与动力电机相连,散热器具有空气孔道,且散热器与动力电机相连,风扇与驱动电机传动连接,驱动电机驱动风扇转动,沿风扇的轴向,导流结构具有进风侧和出风侧,驱动电机和动力电机位于导流结构的进风侧,风扇和散热器位于导流结构的出风侧,风扇位于导流结构和散热器之间,导流结构至少将进风侧的部分气流引导至风扇的中部区域。本申请提供的电动发动机能够减少风扇和散热器之间因气流的流速差而形成的热回流,降低或者消除驱动电机和动力电机被热回流反向加热,使吹到散热器上的气流分布和速度更为均匀,确保动力电机的正常运行。
Electric engine, electric propulsion device and aircraft
电动发动机、电推进装置及飞行器
2024-12-31
Patent
Electronic Resource
Chinese
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