The noise reduction radiator grille comprises a radiator grille body and a noise reduction unit, and the radiator grille body is used for being arranged on a cab; the noise reduction unit is connected with the radiator grille body, the noise reduction unit is used for being arranged between a noise source of the cab and the radiator grille body, and the area of the noise reduction unit is larger than that of a noise area of the noise source of the cab. According to the front mask, the noise reduction unit is arranged between the noise source of the cab and the front mask body by utilizing the characteristics that sound is transmitted in the form of longitudinal waves in the air and can be reflected when encountering obstacles, the area of the noise reduction unit is larger than that of a noise area, and sound energy is rapidly absorbed and weakened through the noise reduction unit; therefore, sound waves cannot be reflected back and forth in the cavity formed by the front wall of the vehicle body and the front mask body (even resonance is formed), and the problem that noise in the front wall direction of a commercial vehicle permeates into a cab is solved.

    本申请涉及一种降噪前面罩及其汽车,其包括:前面罩本体和降噪单元,前面罩本体用于设置于驾驶室上;降噪单元与前面罩本体连接,降噪单元配置为:降噪单元用于设置于驾驶室的噪声源与前面罩本体之间,降噪单元面积大于驾驶室的噪声源的噪声区域面积。本发明中,利用声音在空气中是以纵波的形式传播、遇到障碍物会产生反射的特点,在驾驶室噪声源与前面罩本体之间设置降噪单元,并设置降噪单元面积大于噪声区域面积,通过降噪单元将声音能量快速吸收减弱,从而使声波不能在车身本体前围与前面罩本体形成的空腔内来回反射(甚至形成共振),解决了商用车前围方向的噪声透入驾驶室内的问题。


    Access

    Download


    Export, share and cite



    Title :

    Noise reduction radiator grille and automobile with noise reduction radiator grille


    Additional title:

    一种降噪前面罩及其汽车


    Contributors:
    DONG BIN (author) / LI TINGCAI (author) / ZENG XUEWEI (author) / HUANG TAIQIANG (author) / XU AO (author) / ZHOU CHAOYI (author)

    Publication date :

    2025-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    AUTOMOBILE RADIATOR GRILLE

    WU JACOB | European Patent Office | 2024

    Free access

    RADIATOR GRILLE FOR AUTOMOBILE

    European Patent Office | 2017

    Free access

    RADIATOR GRILLE

    ZHANG WEIJIN | European Patent Office | 2016

    Free access

    Radiator Grille

    PRABHUDESAI AVINASH ATMARAM | European Patent Office | 2017

    Free access

    RADIATOR GRILLE

    ABE YASUYUKI | European Patent Office | 2016

    Free access