PROBLEM TO BE SOLVED: To reduce a mounting space of a check valve in a cooling apparatus of an electric motor.SOLUTION: A cooling apparatus 100 of motors 2 and 3 mounted on a hybrid vehicle comprises a check valve 110 having two valve mechanisms 111 and 112 inside one housing. The check valve 110 includes: the first valve mechanism 111 for restricting backflow of a coolant to a mechanical oil pump 101 side; the second valve mechanism 112 for restricting backflow of a coolant to an electric oil pump 102 side, which is provided at a connection point between a second discharge passage 220a and a connection passage 220b; and a communication passage 201 for communicating a water cooling pre-passage 210b on an oil cooler side and the connection passage 220b inside the housing of the check valve 110.SELECTED DRAWING: Figure 2

    【課題】電動機の冷却装置において逆止弁の搭載スペースを削減すること。【解決手段】ハイブリッド車両に搭載されたモータ2,3の冷却装置100において、一つの筐体内部に二つのバルブ機構111,112を有する逆止弁110を備え、逆止弁110は、冷媒が機械式オイルポンプ101側へ逆流することを規制する第一バルブ機構111と、第二吐出流路220aと接続流路220bとの接続箇所に設けられ、かつ冷媒が電動オイルポンプ102側へ逆流することを規制する第二バルブ機構112と、逆止弁110の筐体内部でオイルクーラ側の水冷前流路210bと接続流路220bとを連通させる連通流路201とを有することを特徴とする。【選択図】図2


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    Title :

    COOLING APPARATUS OF ELECTRIC MOTOR


    Additional title:

    電動機の冷却装置


    Contributors:

    Publication date :

    2017-03-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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