The invention provides a motor rotor, a motor, a power assembly, an electric vehicle and a compression injection molding device, the motor rotor comprises at least one rotor iron core and a plurality of magnetic steels, each rotor iron core comprises a plurality of magnetic steel grooves, and each magnetic steel groove penetrates through the rotor iron core along the axial direction of the motor rotor. Wherein each magnetic steel groove is used for accommodating one magnetic steel and one injection molding body, and one injection molding body is filled between the groove wall of one magnetic steel groove and one magnetic steel and is used for fixing one magnetic steel in one magnetic steel groove. Along the axial direction of the motor rotor, the length of the injection molding body is smaller than the length of the magnetic steel groove, and the length of the injection molding body is smaller than the length of the magnetic steel, so that at least part of the magnetic steel is exposed out of the injection molding body, the utilization rate of injection molding materials is improved, the production cost is reduced, and the appearance of the rotor core is attractive.

    本申请提供一种电机转子、电机、动力总成、电动车及压缩注塑装置,电机转子包括至少一个转子铁芯和多个磁钢,每个转子铁芯包括多个磁钢槽,沿电机转子轴向每个磁钢槽贯穿转子铁芯。其中,每个磁钢槽用于容纳一个磁钢和一个注塑体,一个注塑体用于填充于一个磁钢槽的槽壁和一个磁钢之间和以及用于将一个磁钢固定于一个磁钢槽中。沿电机转子轴向,注塑体的长度小于磁钢槽的长度,注塑体的长度小于磁钢的长度,使得磁钢至少部分外露于注塑体,注塑料的利用率提高,有利于降低生产成本,还有利于使得转子铁芯外观美观。


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    Title :

    Motor rotor, motor, power assembly, electric vehicle and compression injection molding device


    Additional title:

    电机转子、电机、动力总成、电动车及压缩注塑装置


    Contributors:
    CONG QI (author) / SHI CHAOJIE (author)

    Publication date :

    2025-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



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