To suppress degradation of cooling performance caused by air bubbles in a coolant in a cooling device of an electric drive vehicle.SOLUTION: A cooling device 2 includes: a coolant circuit (a first coolant circuit 40) in which a coolant for cooling an electric motor and an electric device circulates; a pump (a first pump 27) which feeds the coolant; a degas tank (a first degas tank 23) which separates air bubbles from the coolant. The coolant circuit connects the respective devices serially. The degas tank is arranged on an upper stage. A first device, which is at least one of the electric motor, the electric device, and the pump, is arranged on a lower stage. Remaining second devices are arranged on an upper position than the lower stage, and in a position equal to the degas tank, or are arranged in a position lower than the degas tank. The coolant circuit connects the degas tank, the second device, and the first device in this order, and the coolant flows in this order.SELECTED DRAWING: Figure 4

    【課題】電気駆動車両の冷却装置において、冷却液中の気泡に起因する冷却性能の低下を抑制する。【解決手段】冷却装置2は、電気モータ及び電気機器を冷却する冷却液が循環する冷却液回路(第1冷却液回路40)と、冷却液を送り出すポンプ(第1ポンプ27)と、気泡を冷却液から分離するデガスタンク(第1デガスタンク23)と、を備える。冷却液回路は、各デバイスを直列に接続する。デガスタンクは、上段に配設され、電気モータ、電気機器、及び、ポンプの内の少なくとも一の、第1デバイスは下段に配設され、残りの第2デバイスは、下段よりも上でかつ、デガスタンクと同じか、又は、デガスタンクよりも低い位置に配設される。冷却液回路は、デガスタンク、第2デバイス、及び、第1デバイスを、この順番に接続し、冷却液は、この順に流れる。【選択図】図4


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    Title :

    COOLING DEVICE OF ELECTRIC DRIVE VEHICLE


    Additional title:

    電気駆動車両の冷却装置


    Contributors:

    Publication date :

    2021-03-01


    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



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