An electric motor of the present invention comprises: an electric part; a rotating shaft coupled to the electric part to rotate by a driving force of the electric part; and a case in which a shaft hole is formed so that both ends of the rotating shaft are penetrated and supported, wherein an inner space of the case in which the electric part is installed is sealed to accommodate a cooling fluid. Bearings for supporting the rotating shaft are individually installed in the shaft hole. Shaft sealing members for sealing between the rotating shaft and the shaft hole are individually installed at inner sides than the bearings. Accordingly, the present invention can stably maintain the cooling fluid accommodated in the inner space of the case.

    본 발명은, 전동부; 상기 전동부에 결합되어 그 전동부의 구동력에 의해 회전하는 회전축; 및 상기 회전축의 양단이 관통되어 지지되도록 축수구멍이 형성되며, 상기 전동부가 구비되는 내부공간이 밀봉되어 그 내부공간에 냉각유체가 수용되는 케이스;를 포함하고, 상기 축수구멍에는 상기 회전축을 지지하는 베어링이 각각 구비되며, 상기 베어링보다 안쪽에는 상기 회전축과 상기 축수구멍 사이를 실링하는 축수실링부재가 각각 구비될 수 있다. 이에 따라, 케이스의 내부공간에 수용되는 냉각유체를 안정적으로 유지할 수 있다.


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    Title :

    ELECTRIC MOTOR AND ELECTRIC VEHICLE HAVING THE SAME


    Additional title:

    전기모터 및 이를 구비한 전기차량


    Publication date :

    2021-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    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 / F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten



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