To obtain an electric vehicle driving device that does not require piping around an oil cooler, decreases weight and size, prevents the invasion of cooling water into a waterproof zone, and facilitates assembling to an electric vehicle.SOLUTION: An electric vehicle driving device is equipped with a motor, a gear box that stores a deceleration mechanism coupled with the motor and a differential mechanism coupled with the deceleration mechanism, an inverter that is electrically connected to the motor to convert power, and an oil cooler that oil-cools the motor. The inverter has a first cooling water path and a second cooling water path in which cooling water flows. The oil cooler has an oil cooler water path in which the cooling water flows. The oil cooler is provided so as to abut on the inverter. At the abutting part, a water path is formed, in which the first cooling water path and the oil cooler water path are coupled, the second cooling water path and the oil cooler water path are coupled, and the cooling water flows in the order of the first cooling water path, the oil cooler water path, and the second cooling water path.SELECTED DRAWING: Figure 1

    【課題】オイルクーラの周囲に配管を必要とせず、軽量化及び小型化されると共に、防水区画に冷却水が侵入せず、電動車両への組込みが容易な電動車両駆動装置を得ること。【解決手段】モータと、モータに連結された減速機構、及び減速機構に連結された差動機構を収容したギヤボックスと、モータと電気的に接続され、電力を変換するインバータと、モータを油冷するオイルクーラと、を備え、インバータは、冷却水が流れる、第一冷却水路及び第二冷却水路を有し、オイルクーラは、冷却水が流れるオイルクーラ水路を有し、オイルクーラは、インバータに当接して設けられ、当該当接部において、第一冷却水路とオイルクーラ水路とが連結され、第二冷却水路とオイルクーラ水路とが連結され、第一冷却水路、オイルクーラ水路、第二冷却水路の順に冷却水が流れる水路が形成されている。【選択図】図1


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    Title :

    ELECTRIC VEHICLE DRIVING DEVICE


    Additional title:

    電動車両駆動装置


    Contributors:

    Publication date :

    2025-03-25


    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



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