The invention provides a flat wire motor, a power assembly and an electric vehicle, a motor stator of the flat wire motor comprises a plurality of winding grooves, at least four flat wires are sequentially arranged in each winding groove in a layered manner along the radial direction of the flat wire motor, the flat wires accommodated in the plurality of winding grooves are arranged into three circles of flat wires in a layered manner, and each circle of flat wires is divided into a plurality of groups of flat wires arranged along the circumferential direction of the flat wire motor. And each group of flat wires comprises one flat wire in the same winding groove or a plurality of flat wires which are sequentially and adjacently arranged. The number of the flat wires in each group of the first circle of the flat wires is different from the number of the flat wires in each group of the second circle of the flat wires. The first-layer flat wire of each group of flat wires in the first circle of flat wires is used for being connected with one first-layer flat wire of the other group of flat wires in the first circle of flat wires through two cross-wire sections with different lengths, so that the wiring modes of the first circle of flat wires and the second circle of flat wires in the winding groove are different, and a short-distance winding is formed; therefore, the harmonic magnetic field of the flat wire motor is weakened, and the NVH performance of the flat wire motor is improved.
本申请提供一种扁线电机、动力总成及电动车,扁线电机的电机定子包括多个绕组槽,沿扁线电机径向每个绕组槽中依次分层排列至少4根扁线,多个绕组槽所容纳的扁线分层排列为三圈扁线,每圈扁线分为沿扁线电机周向排列的多组扁线,每组扁线包括同一个绕组槽中的一根扁线或者依次相邻排列的多根扁线。第一圈扁线的每组扁线中扁线的数量和第二圈扁线的每组扁线中扁线的数量不相同。第一圈扁线中各组扁线的第一层扁线用于通过两种长度不同的跨线段连接第一圈扁线中的另一组扁线的一个第一层扁线,从而有利于使绕组槽内的第一圈扁线与第二圈扁线的走线方式出现差异,有利于构成短距绕组,从而削弱扁线电机的谐波磁场,改善扁线电机的NVH性能。
Flat wire motor, power assembly and electric vehicle
扁线电机、动力总成及电动车
2025-01-03
Patent
Electronic Resource
Chinese
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / 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 |