Soundproof panel for automobile

Abstract

The invention provides a soundproof panel for an automobile. The soundproof panel comprises a first panel, a second panel, and soundproof cotton arranged between the first panel and the second panel, wherein keels are arranged on the first panel; the keels and the first panel are formed by one-time injection; the keels form a grid-shaped structure in a criss-cross manner; each grid shape forms a soundproof unit with a hollow structure; the soundproof cotton is filled in the soundproof units. The soundproof panel further comprises a connection device used for connecting the first panel with the second panel. The soundproof panel provided by the invention has the following beneficial effects that: the interior noise of the automobile can be effectively lowered while the weight and the cost of the automobile are not obviously increased, with no changes on the original panel structure of the automobile, and the purpose can be realized only by adding one working procedure; the soundproof panel is low in machining cost, simple in structure, easy to detach, convenient to repair, capable of updating a soundproof effect by replacing an interior soundproof layer material, free from generating hazardous substances by using the soundproof material, and environment-friendly and safe.

Description

technical field [0001] The invention belongs to the field of auto parts, in particular to an automobile sound insulation panel. Background technique [0002] The impact of noise on human health is multifaceted. Noise acts on the central nervous system of people, causing the imbalance between excitation and inhibition of the cerebral cortex, resulting in abnormal conditioned reflexes and damage to the tension of cerebral blood vessels. Noise also has a serious adverse effect on the digestive system and cardiovascular system, which can cause indigestion, loss of appetite, nausea and vomiting, which will lead to an increase in the incidence of stomach disease and gastric ulcer disease, and make the incidence of hypertension, arteriosclerosis and coronary heart disease higher than normal The situation improved markedly. Noise can also cause adverse effects on the visual organs. [0003] On the other hand, car noise not only increases the fatigue of drivers and passengers, but ...

AI Technical Summary

Problems solved by technology

In order to reduce weight and cost, automobiles generally use hollow panels and interior panels. Such panels or interior panels have poor sound insulation and cannot effectively block noise. Therefore, in existing automotive panels and interior panels While increasing the sound insulation layer, the weight and cost of the car are not significantly increased, which has become an important research direction for reducing car noise.

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