PROBLEM TO BE SOLVED: To provide a cooling structure of a motor, capable of efficiently cooling a coil of a stator by cooling oil diffused from a rotary shaft of a rotor and capable of improving output of the motor.SOLUTION: The coil of a stator 9 is composed of a plurality of individual coils 33 formed on respective tooth portions of a stator core. Each individual coil 33 is composed of a coil bobbin 34 surrounding an outer periphery of the tooth portion and a winding 35 wound around the coil bobbin 34. A shaft center oil feeding passage 56 for feeding cooling oil through a shaft center of a rotary shaft 6 and a discharge oil passage 60 connected to the shaft center oil feeding passage 56 to discharge the cooling oil to an inner space S of a housing 8 are formed. The coil bobbin 34 has a protrusion 34ba protruded to an outer diameter end of a motor diameter direction at least in a motor shaft direction as compared with a winding diameter of the winding 35, and a repelling face 37 for repelling the cooling oil discharged from the discharge oil passage 60 and diffused to the outer diameter side of the motor diameter direction through the inner space S to the winding 35 is formed on the protrusion 34ba.SELECTED DRAWING: Figure 1

    【課題】ロータの回転軸から拡散される冷却油でステータのコイルを効率良く冷却することができ、モータの出力向上を図ることができるモータの冷却構造を提供する。【解決手段】ステータ9のコイルは、ステータコアの各歯部に設けられた複数の個別コイル33からなる。個別コイル34は、歯部の外周を囲むコイルボビン34と、コイルボビン34に巻かれた巻線35とでなる。回転軸6の軸心を通って冷却油を給油する軸心給油路56と、軸心給油路56に連通してハウジング8の内部空間Sに冷却油を吐出する吐出油路60とを有する。コイルボビン34は、モータ径方向の外径端に、巻線35の巻径よりも少なくともモータ軸方向に張り出す張出部34baを有し、この張出部34baに、吐出油路60から吐出されて内部空間Sをモータ径方向の外径側へ拡散される冷却油を巻線35に向けて撥ね返す撥返し面37が形成されている。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    COOLING STRUCTURE OF MOTOR


    Additional title:

    モータの冷却構造


    Contributors:

    Publication date :

    2017-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



    MOTOR COOLING STRUCTURE

    LEE YO WON | European Patent Office | 2024

    Free access

    MOTOR COOLING STRUCTURE

    KIM TAE KIL / HAN DAE WOONG | European Patent Office | 2020

    Free access

    MOTOR COOLING STRUCTURE

    European Patent Office | 2023

    Free access

    Motor cooling structure

    SUGIURA HIROYUKI / KITAWAKI SHUNSUKE / OMORI KOHEI | European Patent Office | 2021

    Free access

    MOTOR COOLING STRUCTURE

    NOHIRA KOSUKE | European Patent Office | 2020

    Free access