To provide a cooling device for a vehicular motor capable of controlling a liquid level of working fluid in a motor housing to an intended liquid level while responding to requests for simplifying and reducing the size of the cooling device.SOLUTION: A cooling device for a vehicular motor includes: a storage section (123) storing working fluid (101) for cooling a motor (53) applying driving force to a vehicle (1) under first pressure; a motor housing (54) configured to enable accommodation of the motor under second pressure lower than the first pressure; a supply circuit (129a) supplying the working fluid stored in the storage section into the motor housing; a discharge circuit (129b) discharging the working fluid supplied into the motor housing to outside of the motor housing and storing the discharged working fluid (101) in the storage section; a discharge pump (121) provided in the discharge circuit and controlling a flow rate of the working fluid to be discharged from the discharge circuit; and a flow rate restriction section (127) provided in the supply circuit and restricting a flow rate of the working fluid to be supplied from the storage section to the motor housing.SELECTED DRAWING: Figure 2

    【課題】冷却装置の簡素化・小型化の要求に応えつつ、モータハウジング内の作動流体液位を所望の液位に調整することができる車両用モータの冷却装置を提供する。【解決手段】車両(1)に対し駆動力を付与するモータ(53)を冷却するための作動流体(101)を第1圧力下で貯留する貯留部(123)と、前記第1圧力よりも低い第2圧力下でモータを収容可能に構成されたモータハウジング(54)と、貯留部に貯留された作動流体をモータハウジング内に供給する供給回路(129a)と、モータハウジング内に供給された作動流体をモータハウジング外に排出し、排出された作動流体(101)を貯留部に貯留する排出回路(129b)と、排出回路に設けられ、排出回路により排出される作動流体の流量を制御する排出ポンプ(121)と、供給回路に設けられ、貯留部からモータハウジングに供給される作動流体の流量を制限する流量制限部(127)と、を含む。【選択図】図2


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    Title :

    COOLING DEVICE FOR VEHICULAR MOTOR


    Additional title:

    車両用モータの冷却装置


    Contributors:
    OGAWA TORU (author) / OKUDE KEIICHI (author)

    Publication date :

    2020-05-07


    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 / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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