To provide a power transmission device for an electric vehicle which minimizes elements of a breather mechanism to contribute to simplification of the structure and reduction of costs.SOLUTION: A power transmission device 2 for an electric vehicle includes: a motor 4; an inverter 6 which performs high-frequency control of the motor 4; a power transmission mechanism 12 which has axles 8L, 8R serving as rotary shafts and transmits power of the motor 4 to driving wheels 10L, 10R; a ground conductive member 14 which contacts with the axle 8R at the right side in the figure; and a sealing space part 16 which seals an installation portion of the conductive member 14. The sealing space part 16 communicates with an inverter chamber 20 serving as an existing space part including a pressure adjustment member 18 through a ventilation passage 22.SELECTED DRAWING: Figure 1

    【課題】ブリーザー機構の要素を極力少なくして構成の簡易化、低コスト化に寄与する電動車両用動力伝達装置を提供する。【解決手段】電動車両用動力伝達装置2は、モータ4と、モータ4を高周波制御するインバータ6と、回転軸としての車軸8L、8Rを有し、モータ4の動力を駆動輪10L、10Rに伝達する動力伝達機構12と、図中右側の車軸8Rに接触する接地用の導電性部材14と、導電性部材14の設置部位を密封する密封空間部16と、を備え、密封空間部16が、圧力調整部材18を備えた既存空間部としてのインバータ室20に通気路22を介して連通している。【選択図】図1


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    Title :

    POWER TRANSMISSION DEVICE FOR ELECTRIC VEHICLE


    Additional title:

    電動車両用動力伝達装置


    Contributors:

    Publication date :

    2024-11-21


    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



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