To reconcile improvement of cooling performance and miniaturization of an electric device with built-in wheels.SOLUTION: An electric device with built-in wheels according to the present invention is connected with wheels, in which a stator comprises: a core material around which a coil is wound; an inverter circuit part; a fixation member which fixes a bearing for rotatably supporting a rotational axis of a rotor; and a stator cover for integrating the core material, the inverter circuit part, and the fixation member with one another. The inverter circuit part is arranged on a first coil end side of the core material. The fixation member and the stator cover form an inverter flow channel for flowing coolant to the inverter circuit part, a relay flow channel which is connected with the inverter flow channel and connected with a second coil end side on the opposite side of the first coil end side of the core material, and a second coil end side flow channel which is connected with the relay flow channel and guides the coolant along the second coil end.SELECTED DRAWING: Figure 1

    【課題】ホイール内蔵電動装置の冷却性能の向上と小型化とを両立させる。【解決手段】本発明によるホイール内蔵電動装置は、ホイールと接続され、前記ステータは、コイルが巻回されるコア材と、インバータ回路部と、前記ロータの回転軸を回転支持するベアリングを固定する固定部材と、前記コア材と前記インバータ回路部と前記固定部材とを一体化させるためのステータカバーと、を備え、前記インバータ回路部は、前記コア材の第1コイルエンド側に配置され、前記固定部材および前記ステータカバーは、前記インバータ回路部に冷媒を流すインバータ流路と、前記インバータ流路と繋がりかつ前記コア材の第1コイルエンド側とは反対側の第2コイルエンド側に繋がる中継流路と、前記中継流路と繋がりかつ前記冷媒を前記第2コイルエンドに沿って導く第2コイルエンド側流路と、を形成する。【選択図】図1


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    Title :

    ELECTRIC DEVICE WITH BUILT-IN WHEEL


    Additional title:

    ホイール内蔵電動装置


    Contributors:

    Publication date :

    2021-07-26


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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