The invention relates to an automotive interior ceiling with high sound absorption and insulation performance. The automotive interior ceiling comprises a plurality of ceiling base plates, wherein a silencing braid layer, a sound absorption isolation layer and a flame-retardant layer are sequentially arranged in each ceiling base plate, a fireproof layer is arranged on the outer side surface, close to the flame-retardant layer, of each ceiling base plate, and an air bag layer is arranged on the outer side surface, close to the silencing braid layer, of each ceiling base plate; the silencing braid layer comprises a first inner layer and a first outer layer, the first inner layer and the first outer layer are both formed by weaving rubber threads in a warp and weft mode, sound absorption cotton is arranged between the first inner layer and the first outer layer, the sound absorption isolation layer comprises a containing cavity defined by sound insulation felt, a getter is arranged in the containing cavity, and the flame-retardant layer comprises an asbestos fiber layer; a metal wire mesh is arranged in the asbestos fiber layer, the fireproof layer comprises a second inner layer and a second outer layer, the second inner layer and the second outer layer are formed by weaving aramid yarn warps and wefts, and composite ceramic particles are filled between the second inner layer and the second outer layer. The automotive interior ceiling is advantaged in that the flame retardant property is improved, and the sound absorption and insulation performance is high.
本发明涉及一种具有高吸隔声性能的汽车内饰顶棚,包括若干个顶棚基板,顶棚基板内按顺序依次设有消音编织层、吸音隔离层、阻燃层,顶棚基板靠近阻燃层的外侧面设有防火层,顶棚基板靠近消音编织层的外侧面设有气囊层,消音编织层包括第一内层和第一外层,第一内层和第一外层均为橡胶丝经纬线编织而成,第一内层和第一外层之间设有吸音棉,吸音隔离层包括由隔音毡围成的一个容纳腔,容纳腔内设有吸气剂,阻燃层包括石棉纤维层,石棉纤维层内设有金属丝网,防火层包括第二内层和第二外层,第二内层和第二外层由芳纶丝经纬线编织而成,第二内层和第二外层之间填充有复合陶瓷微粒。本发明的优点:提高阻燃性能、具有高吸隔声性能。
Automobile interior ceiling with high sound absorption and insulation performance
一种具有高吸隔声性能的汽车内饰顶棚
2021-10-26
Patent
Electronic Resource
Chinese
Automobile interior ceiling with high sound absorption and insulation performance
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