Sound Insulator For The Passenger Compartment Of A Motor Vehicle
    1.
    发明申请
    Sound Insulator For The Passenger Compartment Of A Motor Vehicle 审中-公开
    汽车乘客舱隔声器

    公开(公告)号:US20080020199A1

    公开(公告)日:2008-01-24

    申请号:US11659382

    申请日:2005-07-22

    Abstract: A sound insulator for a motor vehicle passenger compartment is disclosed. The aim of the invention is to develop a sound insulator which makes it possible to obtain an improved damping effect within a frequency range less than 300 Hz. In that respect, the invention relates to a sound insulator for a motor vehicle passenger compartment, which comprises an air cushion consisting of a dampingly active envelope which is made of an elastic material and disposed between a sound-generating component and the compartment internal space. The invention provides for a sound damping layer (25) which matches the shape of said component (13), acts as a spring material system and is covered on the compartment side by a heavyweight film (26), thereby forming the first shell of the air cushion (29). The invention also provides for the second shell of the air cushion (29) which is tightly connected to the heavyweight film (26), consists of an elastic, preferably pre-shaped, film (27) which forms the cushion air between the first and second shell.

    Abstract translation: 公开了用于机动车辆乘客舱的隔音器。 本发明的目的是开发一种隔音器,使得可以在小于300Hz的频率范围内获得改进的阻尼效果。 在这方面,本发明涉及一种用于机动车辆乘客舱的隔音器,其包括由弹性材料制成并设置在发声部件和隔室内部空间之间的由阻尼活动外壳组成的气垫。 本发明提供了一种与所述部件(13)的形状相匹配的隔音层(25),用作弹簧材料系统,并通过重量薄膜(26)在隔间侧覆盖,由此形成第二壳体 气垫(29)。 本发明还提供了紧密连接到重型薄膜(26)的气垫(29)的第二壳体,其由弹性的,优选为预成型的薄膜(27)组成,其在第一和第二薄膜之间形成缓冲空气 第二个壳。

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