To provide an underwater propulsion device capable of improving cooling efficiency in a motor and a motor driving circuit with a simple configuration.SOLUTION: An underwater propulsion device 20 of waterborne vehicles 1 with an on-water floating part 2 that a user boards is connected to the on-water floating part 2 via a prop 3 and extends in a propulsion direction, and comprises a hollow main body part 21 the inside of which is partitioned into a first chamber 27 of a bow side and a second chamber 28 of a stern side, a motor 22 housed in the first chamber 27, a propeller 23 housed in the second chamber 28, and a power transmission shaft 24 extending in the propulsion direction and connecting the propeller 23 with the motor 22. The underwater propulsion device further comprises a cooling channel for cooling the first chamber 27.SELECTED DRAWING: Figure 7

    【課題】簡易な構成でモータ及びモータ駆動回路の冷却効率を向上することができる水中推進装置を提供する。【解決手段】使用者が搭乗する水上浮遊部2を有する水上乗り物1の水中推進装置20は、支柱3を介して水上浮遊部2に連結され、推進方向に延び、内部が船首側の第1室27と船尾側の第2室28とに区画された中空の本体部21と、第1室27に収容されるモータ22と、第2室28に収容されるプロペラ23と、推進方向に延びてモータ22とプロペラ23を接続する動力伝達軸24と、を備え、第1室27を冷却する冷却水路を備える。【選択図】図7


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    Title :

    UNDERWATER PROPULSION DEVICE


    Additional title:

    水中推進装置


    Contributors:

    Publication date :

    2020-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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