Dynamic vibration-absorbing felt and shell

Abstract

The invention discloses a dynamic vibration absorbing felt and a shell. The dynamic vibration absorbing felt comprises a mucilage glue layer, an elastic layer and a felt layer. The mucilage glue layer, the elastic layer and the felt layer are sequentially arranged in a stacked manner. The mucilage glue layer is provided with a mucilage glue face. The dynamic vibration absorbing felt can be fixed to an object with vibration to be reduced through the mucilage glue face, the rigidity of the elastic layer and the quality of the felt layer define the inherent frequency of the dynamic vibration absorbing felt, and the inherent frequency of the dynamic vibration absorbing felt corresponds to the excitation frequency received by the object with the vibration to be reduced. The dynamic vibration absorbing felt is convenient to use and remarkable in vibration absorbing effect. Specifically, the dynamic vibration absorbing felt can increase the damp of the object with vibration to be reduced, and therefore vibration caused by excitation can be reduced, and then radiation to noise by the object with vibration to be reduced is reduced. Meanwhile, due to the fact that the inherent frequency of the dynamic vibration absorbing felt is equal to or close to the excitation frequency received by the object with vibration to be reduced, the vibration energy of the object with vibration to be reduced can be remarkably absorbed, and the purpose of reducing vibration of the object with vibration to be reduced can be achieved.

Description

technical field [0001] The invention relates to a felt and a casing, in particular to a dynamic vibration-absorbing felt and a casing with the dynamic vibration-absorbing felt. Background technique [0002] At present, air-conditioning / washing machine products generally use felt to reduce vibration and noise on the box shell. In this way, on the one hand, it can absorb noise, that is, reduce noise on the sound propagation path; The casing vibrates, thereby reducing the radiation of the casing to noise. [0003] However, the existing vibration-absorbing felt can only reduce the vibration of the box shell by increasing the damping, and sometimes cannot achieve a good vibration-damping effect. At the same time, as users have higher and higher requirements for product vibration and noise, the vibration and noise reduction effects of existing vibration-absorbing felts cannot meet the needs of users. [0004] Therefore, in view of the above problems, it is necessary to propose a...

AI Technical Summary

Problems solved by technology

[0003] However, the existing vibration-absorbing felt can only increase the damping to reduce the vibration of the box shell, and sometimes it cannot achieve a good vibration-damping effect

At the same time, as users have higher and higher requirements for product vibration and noise, the vibration and noise reduction effects of existing vibration-absorbing felts cannot meet the needs of users.

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