The invention relates to a car body sealing expansion piece and a filling structure, the expansion piece comprises a foaming material body, a plastic framework body and a metal sheet, the foaming material body is fixedly connected with the plastic framework body through injection molding, and the metal sheet is pre-buried on the plastic framework body. The expansion piece is installed in a cavity defined by a gutter channel metal plate, a gutter channel lower inner plate and a side wall, and the expansion piece and the gutter channel metal plate are fixed in a welding mode by pre-burying a galvanized steel sheet metal plate. Then the tail end of an expansion piece on the gutter channel assembly is clamped into a notch of a gutter channel lower inner plate and welded to a rear stand column inner plate assembly; therefore, firm positioning between the expansion piece and the two metal plates is achieved. The gap of the cavity is filled through high-temperature baking and foaming in a paint workshop, so that wind noise and other noise generated by high-speed driving of vehicles can be effectively reduced and isolated.

    本发明涉及一种车身密封膨胀片及填充结构,该膨胀片,包括发泡料本体、塑料骨架本体和金属片,发泡料本体通过注塑与塑料骨架本体固定连接,金属片预埋在塑料骨架本体上。该膨胀片安装在流水槽钣金、流水槽下里板和侧围所围成的空腔内,通过预埋镀锌钢板金属片,通过焊接的方式实现该膨胀片与流水槽钣金的固定;再将流水槽总成上的膨胀片末端卡进流水槽下里板的缺口中,与后立柱里板总成焊接;从而实现了该膨胀片与两块钣金间的牢固定位。通过油漆车间高温烘烤发泡填充空腔间隙,可以有效减少和隔绝车辆因为高速行驶产生的风噪以及其它噪音。


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    Title :

    Vehicle body sealing expansion sheet and filling structure


    Additional title:

    车身密封膨胀片及填充结构


    Contributors:
    JIANG LING (author) / ZOU HONGSHENG (author) / JIANG BINGKE (author) / ZHANG TIAN (author) / XIAO YIWU (author)

    Publication date :

    2023-06-13


    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



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