Motor vehicle acoustic insulator, methods of manufacture and use thereof
    4.
    发明授权
    Motor vehicle acoustic insulator, methods of manufacture and use thereof 有权
    汽车用隔声器,其制造方法和使用方法

    公开(公告)号:US08881864B2

    公开(公告)日:2014-11-11

    申请号:US13645288

    申请日:2012-10-04

    摘要: An acoustic insulator for a motor vehicle is provided comprising a mass providing an acoustic barrier and a spring providing an acoustic absorber overlying the mass. The mass comprises a first acoustic mass layer underlying a second acoustic mass layer. The first acoustic mass layer is provided by a thermoplastic sheet having a thickness in a range of 0.5 mm to 1 mm. The second acoustic mass layer is provided at one or more localized areas formed in place on a backside surface of the first acoustic mass layer to increase an overall thickness of the mass at the one or more localized areas. The spring layer is formed in place on a backside of the second acoustic mass layer and the backside of the first acoustic mass layer.

    摘要翻译: 提供了一种用于机动车辆的声学绝缘体,其包括提供声屏障的质量和提供覆盖该质量体的声学吸收体的弹簧。 质量包括在第二声质层下面的第一声质层。 第一声​​质层由厚度在0.5mm至1mm范围内的热塑性片提供。 第二声质量层设置在形成在第一声质层的背侧表面上的适当位置的一个或多个局部区域,以增加一个或多个局部区域处的质量的总体厚度。 弹簧层形成在第二声质量层的背侧和第一声质层的背面的适当位置。