To enable adjustment of an atmospheric pressure in a motor housing.SOLUTION: An in-wheel motor unit 20 includes: an in-wheel motor 72 including a hollow axle 26 formed with an axle internal space 28 communicating from a first axle opening 30 to a second axle opening 32, a stator 74 fixed to the axle 26, and a hollow motor housing 38 formed with a motor internal space 64 in which the first axle opening 30 of the axle 26 is open; a first seal 70 which secures liquid-tightness of a motor internal space 64 between the motor housing 38 and the axle 26; a hollow arm 96 formed with an arm internal space 114 in which the second axle opening 32 is open and to which the axle 26 is detachably attached; a second seal 112 which secures liquid-tightness of the arm internal space 114 between the arm 96 and the axle 26; and a breather mechanism (a first arm opening 116) which is open in the arm internal space 114 and communicates with outer air.SELECTED DRAWING: Figure 3

    【課題】モータハウジングの内部の気圧調整を可能にすることを目的とする。【解決手段】インホイールモータユニット20は、第1車軸開口30から第2車軸開口32へ連通する車軸内部スペース28が形成された中空の車軸26と、車軸26に固定されたステータ74と、車軸26の第1車軸開口30が開口するモータ内部スペース64が内部に形成された中空のモータハウジング38と、を含むインホイールモータ72と、モータハウジング38と車軸26との間でモータ内部スペース64の液密性を確保する第1シール70と、第2車軸開口32が開口するアーム内部スペース114が内部に形成され、車軸26が脱着可能に固定された中空のアーム96と、アーム96と車軸26との間でアーム内部スペース114の液密性を確保する第2シール112と、アーム内部スペース114に開口し、外気と連通するブリーザ機構(第1アーム開口116)と、を含む。【選択図】図3


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    Title :

    IN-WHEEL MOTOR UNIT AND ELECTRIC VEHICLE


    Additional title:

    インホイールモータユニット及び電動車両


    Contributors:

    Publication date :

    2020-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B62K Fahrräder , CYCLES



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