According to the noise reduction shutter for the air inlet of the power generation carriage unit and the power generation carriage, the shutter blades of the noise reduction shutter are of a folded plate type structure, the inner angle of each folded plate is 120 degrees, and the noise reduction shutter is made of sound insulation steel plates. Therefore, the air inlet channel forms a folded plate type silencer airflow channel, that is, the air inlet louvre blade forms a group of folded plate type resistive silencers, and the resistive silencers can convert sound energy into heat energy through frictional resistance and viscous force, so that airflow is allowed to pass through, and meanwhile, the good silencing performance on medium-high frequency noise can be achieved.

    本申请提供的一种用于发电车厢体机组进风口的降噪百叶窗及发电车厢体,该降噪百叶窗的窗叶为折板式结构,折板内角为120°,且采用隔声钢板制作而成。由此进风通道形成折板式消声器气流通道,即,进风口窗叶形成了一组折板式阻性消声器,阻性消声器可通过摩擦阻力和黏滞力将声能转化为热能,这样既允许气流通过,同时又可以对中高频噪声起到较好的消声性能。


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    Title :

    Noise reduction shutter for air inlet of generator compartment unit and generator compartment


    Additional title:

    一种用于发电车厢体机组进风口的降噪百叶窗及发电车厢体


    Contributors:
    MO ZHIHAO (author) / WANG ZENGYU (author) / DONG ZHENGJUN (author) / REN JINHUI (author) / ZHOU BAOZHU (author) / LI SHULONG (author)

    Publication date :

    2024-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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