The invention provides a power motor, an electric engine, an electric propulsion device and an aircraft, and relates to the technical field of aircrafts. A stator core assembly and a stator winding assembly of the power motor are arranged in the liquid cooling cavity of the support assembly. The support assembly is provided with a liquid supply flow channel, a bypass flow channel and a liquid inlet flow channel. The liquid supply flow channel comprises at least two liquid supply sections distributed in the circumferential direction of the stator iron core assembly, and the liquid supply sections are communicated with the liquid cooling cavity. The inlet of one of the at least two liquid supply sections is communicated with the outlet of the liquid inlet flow channel, the inlets of the rest of the at least two liquid supply sections are communicated with the bypass flow channel, and the inlet of the bypass flow channel is communicated with the liquid inlet flow channel. Therefore, the cooling medium is input into the liquid cooling cavity from different positions in the circumferential direction of the stator iron core assembly, and through the arrangement of the bypass flow channel, the flow uniformity of the cooling medium output from each liquid supply port of the liquid supply flow channel can be improved, and the heat dissipation uniformity of the cooling medium to the stator winding assembly is improved, so that the working performance of the power motor is improved.
本申请提供一种动力电机、电动发动机、电推进装置及飞行器,涉及飞行器技术领域。动力电机的定子铁芯组件和定子绕组组件设置在支架组件的液冷腔内。支架组件具有供液流道、旁通流道和进液流道。供液流道包括沿定子铁芯组件的周向分布的至少两段供液段,供液段与液冷腔连通。至少两段供液段中的其中一段供液段的进口与进液流道的出口连通,至少两段供液段中的其余的供液段的进口与旁通流道连通,旁通流道的进口与进液流道连通。这样冷却介质从定子铁芯组件的周向的不同位置输入液冷腔内,通过旁通流道的设置,能够提升供液流道的各个供液口输出的冷却介质的流量的均匀性,提升冷却介质对定子绕组组件散热的均匀性,以提升动力电机的工作性能。
Power motor, electric engine, electric propulsion device and aircraft
动力电机、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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