Matrix muffler with circular interior and square exterior

Abstract

The invention discloses a matrix muffler with a circular interior and a square exterior, and relates to the field of matrix noise elimination devices. A matrix muffler with the circular interior and the square exterior and having an exquisite structure, good stability, airflow channels without folding angles and good noise elimination effect is proposed. The matrix muffler comprises a casing having a rectangular parallelepiped shape and a plurality of muffling units, wherein the plurality of muffling units are distributed in the casing in a matrix manner, the adjacent muffling units are closely adhered to each other, and the muffling units are closely adhered to an inner wall of the casing; muffling holes are formed in the muffling units in the length direction; and the muffling holes havecircular cross sections. The matrix muffler is exquisite in structure, is good in stability, is good in airflow passability, and is good in muffling effect of the airflow.

Description

technical field [0001] The invention relates to the field of matrix noise reduction equipment. Background technique [0002] At present, most of the matrix-type noise reduction equipment in the prior art is shown in a Chinese utility model patent named "Matrix Type Noise Reduction Equipment" with the application number "201520534263.0" announced by the National Bureau on December 2, 2105. , the case is composed of a rectangular parallelepiped outer casing and a number of sound-absorbing units arranged in a row. However, people have found after actual use that since there are gaps between the sound-absorbing units in this case, and the cross-section of the sound-absorbing units is square, the knuckles in the gaps (especially through non-sound-absorbing materials) When the knuckles in the outer casing), there will be a certain probability that additional noise will be generated, which will affect the noise reduction effect to a certain extent, and the maximum noise reduction ...

AI Technical Summary

Problems solved by technology

However, people have found after actual use that since there are gaps between the sound-absorbing units in this case, and the cross-section of the sound-absorbing units is square, the knuckles in the gaps (especially through non-sound-absorbing materials) There will be a certain probability of generating additional noise, which will have a certain degree of impact on the noise reduction effect, and the maximum noise reduction effect cannot be achieved.

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