Silencing device and compressor with same
The technology of a noise reduction device and a noise reduction cover, which is applied in the field of compressors, can solve the problems of small contribution of low-frequency noise, influence on compressor performance, and rise in compressor temperature, and achieve the effect of weakening energy, simple structure, and high noise reduction efficiency
Pending Publication Date: 2022-06-21
DANFOSS (TIANJIN) CO LTD
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Problems solved by technology
[0003] At present, for low-frequency noise, the industry mainly avoids resonance and reduces vibration levels through structural improvement, which can effectively reduce low-frequency noise, but the contribution of low-frequency noise to the overall noise value is small
For medium and high frequency noise, such as aerodynamic noise, the most common countermeasure is to apply an acoustic isolation cover, which can form a closed space around the compressor to minimize the outward radiation of compressor noise, but the closed space It will cause the temperature of the compressor to rise, which will affect the performance of the compressor. Further, the temperature rise will put the acoustic isolation enclosure at risk of fire
In addition, current acoustic enclosures are generally costly
Method used
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[0035] Specific embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or like elements throughout. The specific embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure, but not to be construed as a limitation of the present disclosure.
[0036] Embodiments of the present disclosure relate to the field of compressors, and in particular, to a noise reduction device for a compressor.
[0037] figure 1 It is a schematic cross-sectional structure diagram of the muffler device according to the present disclosure applied to a compressor. like figure 1 As shown, the compressor 10 includes a casing 20, a compression assembly 30 disposed in the casing 20, a discharge port disposed above the compression assembly 30, and a muffler 100 disposed at the discharge port 31, using Noise re...
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The invention relates to the field of scroll compressors, in particular to a silencer and a compressor with the silencer. In one embodiment, the silencing device comprises a silencing cover and a microwell plate, an expansion cavity is defined in the silencing cover, the microwell plate is arranged in the expansion cavity and divides the expansion cavity into a first cavity and a second cavity, a plurality of through holes are formed in the microwell plate, and the first cavity and the second cavity are communicated through the through holes. And the air flow entering the expansion cavity passes through the through holes in the microwell plate and then leaves the expansion cavity. According to the silencing device and the compressor with the silencing device, noise, especially aerodynamic noise, of the scroll compressor can be effectively reduced.
Description
technical field [0001] The present disclosure relates to the field of compressors, and in particular, to a muffler device and a compressor having the muffler device. Background technique [0002] With the continuous improvement of noise reduction requirements, the noise of compressors needs to be improved more and more. [0003] At present, for low-frequency noise, the industry mainly uses structural improvement to avoid resonance and reduce the vibration level, which can effectively reduce low-frequency noise, but the contribution of low-frequency noise to the overall noise value is small. For medium and high frequency noise, such as aerodynamic noise, the most common countermeasure is to apply an acoustic isolation cover, which can form a closed space around the compressor to minimize the radiation of compressor noise to the outside, but the confined space It will cause the compressor temperature to rise, affecting the performance of the compressor, and further, the tempe...
Claims
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IPC IPC(8): F04B39/00F04B39/12
CPCF04B39/0083F04B39/121
Inventor 林江波纪小坤郑康让-雅克·莱索斯
Owner DANFOSS (TIANJIN) CO LTD