The invention discloses a noise reduction system for a pantograph cavity of a high-speed train, which comprises a flow guide cover arranged at the front end of the pantograph cavity, a high-speed airflow collector and a jet air source storer, and a plurality of jet nozzles are arranged on the rear wall surface of the flow guide cover. The high-speed airflow collector is composed of a plurality of high-speed airflow collecting units arranged on the vehicle roof in front of the flow guide cover, each high-speed airflow collecting unit is composed of a mounting base, a flow guide pipe and a plurality of airflow collecting covers, each airflow collecting cover is provided with an airflow inlet and an airflow outlet, and the airflow collecting covers are symmetrically and fixedly arranged on the flow guide pipe in a V shape; the airflow inlet faces the front of the high-speed train, the airflow outlet is communicated with the drainage pipe, the tail end of the drainage pipe is communicated with an air inlet of the jet flow air source storage device, and an air outlet of the jet flow air source storage device is communicated with the corresponding jet flow nozzle. Jet flow noise reduction can be carried out on the pantograph cavity without an additional air source, and the remarkable cooperative noise reduction effect is achieved.

    本发明公开了一种用于高速列车受电弓空腔的降噪系统,包括设在受电弓空腔前端的导流罩,在导流罩的后壁面上设有若干射流喷嘴,还包括高速气流收集器和射流气源存储器,所述高速气流收集器是由设在导流罩前方车顶上的若干高速气流收集单元组成,所述高速气流收集单元是由安装座、引流管和多个气流收集罩组成,所述气流收集罩设有气流入口和气流出口,多个气流收集罩呈V字形对称固设在引流管上,且气流入口朝向高速列车前方,气流出口与引流管相连通,引流管的末端与射流气源存储器的进气口相连通,射流气源存储器的出气口与其相对应的射流喷嘴相连通。本发明不仅实现了无需额外气源对受电弓空腔进行射流降噪,而且产生了显著协同降噪效果。


    Access

    Download


    Export, share and cite



    Title :

    Noise reduction system for pantograph cavity of high-speed train


    Additional title:

    一种用于高速列车受电弓空腔的降噪系统


    Contributors:
    CHEN HUI (author) / MIAO XIAODAN (author) / ZHANG HAO (author) / GAO PENG (author) / CAI HAONAN (author)

    Publication date :

    2025-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Active noise reduction device and method for high-speed train pantograph and bottom cavity system of high-speed train pantograph

    TANG ZENAN / YANG JIAN / MIAO XIAODAN et al. | European Patent Office | 2021

    Free access


    Cavity noise reduction of a high-speed train pantograph through jet parameter optimization

    Zhang, Ziheng / Miao, Xiaodan / Liu, Daowei et al. | SAGE Publications | 2024


    Unsteady Aerodynamics of High Speed Train Pantograph Cavity Flow Control for Noise Reduction (AIAA 2016-2848)

    Kim, Hogun / Hu, Zhiwei / Thompson, David | British Library Conference Proceedings | 2016


    Pantograph system of high-speed train

    ZHONG YU / CAI JIANLI / LEI WUJUN et al. | European Patent Office | 2024

    Free access