Acoustic insulation and deodorization sandwich layer for automobile interior decoration

Abstract

The invention discloses an acoustic insulation and deodorization sandwich layer for automobile interior decoration, which comprises an acoustic insulation rubber plate and bumps arranged on the acoustic insulation rubber plate and fixed with the acoustic insulation rubber plate and used for buffering pressure; The sound insulation rubber plate comprises a rubber plate body, a first transverse holepenetrating the rubber plate body and used for reducing the weight of the rubber plate body and improving the sound insulation effect of the rubber plate body, and a second transverse hole penetrating the rubber plate body for reducing the weight of the rubber plate body and improving the sound insulation effect of the rubber plate body and penetrating the first transverse hole; The bump includesa conical protrusion fixed with the rubber plate body, and a dome arranged on the top of the conical protrusion and fixed with the conical protrusion for reducing friction force; The sound insulationand deodorization sandwich layer for automobile interior decoration has the advantages of light weight, squeeze resistance, long service life, sound insulation, noise reduction and air purification,and is suitable for automobile interior decoration.

Description

Technical field [0001] The invention relates to a sound insulation and deodorant interlayer for automobile interior decoration. Background technique [0002] With the development of science and the rise of people's material levels, noise pollution has become a problem that cannot be ignored. The absorption and reduction of noise pollution has become an important issue for the coordinated development of human society. With the deepening of research, various materials that absorb sound waves are produced. The principle of sound insulation is to use when sound waves pass through a certain object, the object can absorb, weaken the reflection and even block the continued propagation of sound waves, so as to achieve the effect of sound insulation. With the development of the automobile industry, the requirements for sound insulation, heat resistance and mechanical properties of sound insulation materials are getting higher and higher. Therefore, the requirements for sound insulation m...

AI Technical Summary

Problems solved by technology

At present, the materials used in automobiles are mainly sound insulation materials with multi-layer composite structure. The installation process of multi-layer sound insulation materials is complicated and the cost is high. Moreover, due to the different thermal expansion coefficients between the layers, they will be mutually restricted during use, and There is a phenomenon of peeling between layers, so that the gap cannot be filled, which affects the overall sound insulation effect

In addition, in addition to the complex structure and poor sound insulation effect of traditional car sound insulation materials, the most prominent problem is that it cannot purify the air. The car is in a closed state when driving, and the internal air needs to be adjusted by the car air conditioner. However, after a long time, the air becomes turbid, which produces peculiar smell, which is also the reason why passengers are prone to motion sickness and vomiting. Therefore, in view of the above problems, the existing sound insulation materials for automobile interior decoration are not only complicated and heavy in material, Not resistant to extrusion and fixing, short service life, poor sound insulation effect, but also has the disadvantage of being unable to purify the air

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