The invention discloses a loudspeaker protection cover and a vehicle-mounted warning system. The loudspeaker protection cover is used for covering the outer side of the loudspeaker and comprises a main body part and a dangling edge surrounding the main body part; the protective cover comprises a main body part and a dangling edge surrounding the main body part, and the main body part is provided with a sound transmission hole penetrating through the main body part from inside to outside; the main body part is provided with an inner side surface opposite to the vibrating diaphragm, and the main body part comprises a phase cone extending outwards from the inner side surface; in the section of the protective cover along the vibration axis, the outline of the outer side surface of the phase cone comprises a curve of which the middle part is arched outwards, and the width of the phase cone is gradually reduced from inside to outside along the vibration axis; the protective cover has a sound diffusion space defined by the outside surface of the phase cone and the dangling edge. According to the loudspeaker protection cover, the intermediate frequency sensitivity of the vehicle-mounted sound production device can be improved, so that the vehicle-mounted sound production device can be used as a pedestrian warning indicator and a whistling horn of a vehicle.

    本发明公开了一种扬声器保护罩及车载警示系统。扬声器保护罩用于罩在所述扬声器外侧,所述保护罩包括主体部及环绕所述主体部的悬边;保护罩包括主体部及环绕主体部的悬边,主体部上设有将其自内至外贯通的透音孔;主体部具有和振膜相对的内侧表面,主体部包括自内侧表面向外延伸的相位锥;在保护罩的沿振动轴线的截面中,相位锥的外侧表面的轮廓包括中部向外拱起的曲线,相位锥的宽度沿振动轴线自内至外逐渐减小;保护罩具有由相位锥的外侧表面和悬边限定的声音扩散空间。本发明的扬声器保护罩可提高车载发声装置的中频灵敏度,使其能够兼做车辆的行人警示器和鸣笛喇叭。


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    Title :

    Loudspeaker protection cover and vehicle-mounted warning system


    Additional title:

    扬声器保护罩及车载警示系统


    Contributors:
    DONG ZHANQING (author) / GU BO (author) / ZHANG YUANYUAN (author) / XU YIJIA (author) / TAO SHENGGANG (author) / SHEN YUEWU (author) / DING XIAOFENG (author)

    Publication date :

    2025-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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