PROBLEM TO BE SOLVED: To improve cooling performance for two electric motors mounted as power sources of a vehicle and reduce the size and weight of a cooling device.SOLUTION: A cooling device 100 for two motors 2, 3 includes: a first path 210 for supplying a refrigerant discharged from a mechanical oil pump 101 to the first motor 2; a second path 220 for air-cooling the refrigerant discharged by the mechanical oil pump 101 by using an air-cooling cooler 103 and then supplying the refrigerant to the first motor 2; a third path 230 branched from the second path 220 and supplying the air-cooled refrigerant to the second motor 3; a fourth path 240 for water-cooling a refrigerant discharged by an electric oil pump 102 by using an air-cooling cooler 104 and then supplying the refrigerant to the second motor 3; a check valve 105 provided on the mechanical oil pump 101 side of a branch point P between the first path 210 and the second path 220; and a control device 112 for normally driving the electric oil pump 102 while an engine is being operated.SELECTED DRAWING: Figure 3

    【課題】車両の動力源として搭載された二つの電動機に対する冷却性能を向上させるとともに、冷却装置の小型化と軽量化を図ること。【解決手段】二つのモータ2,3の冷却装置100において、機械式オイルポンプ101が吐出した冷媒を第一モータ2に供給する第一経路210と、機械式オイルポンプ101が吐出した冷媒を空冷クーラ103で空冷してから第一モータ2に供給する第二経路220と、第二経路220から分岐して空冷後の冷媒を第二モータ3に供給する第三経路230と、電動オイルポンプ102が吐出した冷媒を水冷クーラ104で水冷してから第二モータ3に供給する第四経路240と、第一経路210と第二経路220との分岐点Pよりも機械式オイルポンプ101側に設けられた逆止弁105と、エンジンが駆動中は電動オイルポンプ102を常時駆動させる制御装置112とを備える。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    COOLING DEVICE FOR ELECTRIC MOTOR


    Additional title:

    電動機の冷却装置


    Contributors:

    Publication date :

    2017-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / 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



    ELECTRIC MOTOR COOLING DEVICE

    TERAO KIMINOBU | European Patent Office | 2020

    Free access

    COOLING DEVICE OF ELECTRIC MOTOR

    KURODA YASUAKI | European Patent Office | 2018

    Free access

    ELECTRIC MOTOR COOLING CONTROL DEVICE

    MOGI TARO / YU YOICHIRO | European Patent Office | 2023

    Free access

    COOLING DEVICE FOR ELECTRIC MOTOR

    NOBUYASU SEITARO / KOMADA HIDEAKI | European Patent Office | 2017

    Free access

    Cooling method and cooling device of electric motor

    TSUKAMOTO YUKINORI | European Patent Office | 2024

    Free access