Device for suppressing radiation noise of plate, plate and vehicle

Abstract

The invention provides a device for suppressing radiation noise of a plate, the plate and a vehicle. The device for suppressing the radiation noise of the plate comprises a soundproof part. The soundproof part comprises a soundproof material part used for being installed on the plate, and a cavity is formed between the soundproof material part and the plate. The device for suppressing the radiation noise of the plate is simple in structure, and the requirement for the manufacturing technology is low, so that the cost of the device for suppressing the radiation noise of the plate is low; in addition, as the cavity is formed between the soundproof material part and the plate, parts of sound waves are reflected by the soundproof material part to be further weakened in the cavity, parts of the sound waves are absorbed by the soundproof material part, and then radiation of the noise of the plate is effectively suppressed.

Description

technical field [0001] The invention relates to the technical field of noise suppression, in particular to a device for suppressing radiation noise of a panel, a panel and a vehicle. Background technique [0002] During the use of the vehicle, after being excited by the engine, road surface or chassis system, the body panel vibrates and drives the air vibration on the surface of the panel to spread outward, forming the noise inside the vehicle. [0003] Traditionally, sandwich boards and double-layer boards are usually used to suppress plate radiation noise. Sandwich boards add a damping adhesive layer between two thin boards to suppress noise radiation. The manufacturing process requirements are high and the use cost is high. Double-layer panels are two-layer panels arranged at intervals, and their compression resistance is poor. They are usually used for small-scale components, such as: exhaust main consumer, front wall, etc., and are not suitable for large panels such as ...

AI Technical Summary

Problems solved by technology

[0003] Traditionally, sandwich boards and double-layer boards are usually used to suppress plate radiation noise. Sandwich boards add a damping adhesive layer between two thin boards to suppress noise radiation. The manufacturing process requirements are high and the use cost is high. Double-layer panels are two-layer panels arranged at intervals, and their compression resistance is poor. They are usually used for small-scale components, such as: exhaust main consumer, front wall, etc., and are not suitable for large panels such as body floors.

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