The invention discloses an automobile outside rear-view mirror and a noise reduction method thereof. The automobile outside rear-view mirror comprises a plurality of fins arranged perpendicular to the moving direction of an automobile, when noise reduction is needed, the fins rotate by an angle and extend out of a rear-view mirror shell, and an oblique comb tooth structure similar to the outer edge of primary flying feathers of birds is formed above a mirror body, so that large air vortex flowing through the surface of the outside rear-view mirror is filtered into fine small vortex, and generation of turbulent noise is restrained. Through a rotating unit and a moving unit, rotation and movement of the fins are achieved, the fins extend out of the rear-view mirror shell in a scene where noise reduction is needed, the fins retract to the rear-view mirror shell in a scene where noise reduction is not needed, and the appearance of the rear-view mirror is kept smooth; when noise reduction work is carried out on the outside rear-view mirror of the automobile, the running speed is set to be a switch for starting and ending the noise reduction work scene; and the whole process is automatically completed without manual operation, and the driving habit of a driver is not affected.

    本发明公开了一种汽车外后视镜及其降噪方法,一种汽车外后视镜,包括垂直于汽车运动方向排列的多个翅片,在需要降噪时,翅片旋转角度并伸出后视镜壳体,并在镜片上方形成类似鸟类初级飞羽外缘的斜梳齿结构,从而将流经外后视镜表面的大空气涡流“过滤”成细碎的小涡流,从而抑制湍流噪声的产生;通过旋转单元和移动单元,实现翅片的旋转和移动,实现当需要降噪的场景时,翅片伸出后视镜壳体,当不需要降噪的场景时,翅片回缩至后视镜壳体,保持外后视镜外观光顺;在汽车外后视镜实施降噪工作时,将行驶速度设定为启动和结束降噪工作场景的“开关”;整个过程,自动完成无需手动操作,不影响驾驶员的驾驶习惯。


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    Title :

    Automobile outside rear-view mirror and noise reduction method thereof


    Additional title:

    一种汽车外后视镜及其降噪方法


    Contributors:

    Publication date :

    2021-08-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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