Silencer, compressor and refrigeration equipment thereof

A muffler and compressor technology, which is applied in the field of compressors, can solve the problems of narrow muffler frequency band, high action frequency, and difficulty in eliminating middle and low frequency noise, and achieve the effects of expanding the muffler frequency band, improving noise reduction effect, and reducing noise

Pending Publication Date: 2022-02-08
GUANGDONG MEIZHI COMPRESSOR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The noise generated by compressor exhaust is mostly low- and medium-frequency noise, such as the 800Hz-2500Hz frequency band. The noise in this frequency band cannot be eliminated even after the compressor is wrapped with soundproof cotton. At the same time, the noise in this frequency band seriously affects the hearing of the compressor. Currently, A common practice is to install a muffler at the exhaust port of the compressor to reduce the exhaust noise of the compressor. However, the current muffler has a narrow muffler frequency band and a high frequency of action, making it difficult to eliminate low- and medium-frequency noise.

Method used

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  • Silencer, compressor and refrigeration equipment thereof
  • Silencer, compressor and refrigeration equipment thereof
  • Silencer, compressor and refrigeration equipment thereof

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...

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Abstract

The invention discloses a silencer, a compressor and refrigeration equipment thereof. The silencer comprises a main body, an air inlet, an air outlet and a plurality of cavities are formed in the main body, the air inlet and the air outlet are communicated to form a channel penetrating through the main body, one end of each cavity is closed, and the other end of each cavity is communicated with the channel. The diameter of the channel is gradually reduced from the air inlet to the air outlet, and the multiple cavities surround the channel and are independently arranged. According to the principle of acoustic black holes, the diameter of the channel is gradually reduced in the direction from the air inlet to the air outlet, transparent transmission of sound waves in the channels is reduced, meanwhile, the sound waves enter all the cavities and are continuously reflected in the cavities to form reflected waves, and then the reflected waves are reflected out of the cavities and counteract with the sound waves, about to enter the cavities, in the channels. The noise is weakened, and the noise of the compressor is reduced.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a muffler, a compressor and refrigeration equipment thereof. Background technique [0002] The noise generated by compressor exhaust is mostly low- and medium-frequency noise, such as the 800Hz-2500Hz frequency band. The noise in this frequency band cannot be eliminated even after the compressor is wrapped with soundproof cotton. At the same time, the noise in this frequency band seriously affects the hearing of the compressor. Currently, A common practice is to install a muffler at the compressor exhaust port to reduce the compressor exhaust noise. However, the current muffler has a narrow muffler frequency band and a high frequency of action, making it difficult to eliminate low- and medium-frequency noise. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention provid...

Claims

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Application Information

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IPC IPC(8): F04C29/06F04C29/12F04C29/00
CPCF04C29/06F04C29/12F04C29/00
Inventor 张肃邓志强宋世功
Owner GUANGDONG MEIZHI COMPRESSOR
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