CN-119934031-B - Muffler device for scroll compressor and scroll compressor

CN119934031BCN 119934031 BCN119934031 BCN 119934031BCN-119934031-B

Abstract

The invention provides a muffler device for a scroll compressor and the scroll compressor, wherein the muffler device comprises a first muffler space and a second muffler space which are connected with each other through a first baffle, the first baffle comprises a first flow guiding part arranged in the middle and a second flow guiding part arranged on the periphery, the top of the second muffler space is provided with an exhaust hole, the interior of the second muffler space is divided into a plurality of chambers through a spacer, the first end of the chamber is close to the first flow guiding part, and the second flow guiding part is positioned at the second end of the chamber. The muffler device for the scroll compressor can enable gas to carry out secondary noise elimination, can enable pneumatic noise of the scroll compressor to be obviously reduced, can solve the problem of pneumatic noise caused by gas pulsation during high-speed operation, is suitable for the scroll compressor with large displacement, can reduce noise of the scroll compressor on the basis of not reducing the efficiency of the scroll compressor, and improves the sound quality of the scroll compressor.

Inventors

CHEN KE
LIN JINHUA
LIAO QUANPING
YANG JIAXIANG
LIN WEITENG

Assignees

江森自控日立万宝压缩机（广州）有限公司

Dates

Publication Date: 20260505
Application Date: 20250224

Claims (4)

1. The silencer for the scroll compressor is characterized by comprising a first silencing space and a second silencing space which are connected with each other through a first baffle, wherein the first baffle comprises a first flow guiding part arranged in the middle and a second flow guiding part arranged on the periphery, an exhaust hole is formed in the top of the second silencing space, the interior of the second silencing space is divided into a plurality of chambers through a spacer, the first end of the chamber is close to the first flow guiding part, and the second flow guiding part is positioned at the second end of the chamber; Taking the upper surface of the first baffle plate as a plane, wherein the size of the orthographic projection of the chamber on the plane gradually decreases from the second end of the chamber to the first end of the chamber; The second silencing space further comprises a second baffle plate, the second baffle plate is arranged in the second silencing space, and the second silencing space is divided into a first exhaust chamber and a second exhaust chamber through the second baffle plate; The first exhaust chamber and the second exhaust chamber each comprise a plurality of the chambers, the first diversion part and the second diversion part; The silencing device for the scroll compressor further comprises a guide cover, wherein the guide cover is arranged on the first guide part, and part of the guide cover is arranged on the first guide part; The first diversion part comprises a plurality of first diversion holes, each first diversion hole is covered with one diversion cover, and the opening directions of two adjacent diversion covers are different; The second diversion part comprises at least two groups of diversion holes, each group of diversion holes comprises a plurality of second diversion holes, the at least two groups of diversion holes are sequentially arranged from the second end of the chamber to the first end of the chamber, and the number of the second diversion holes included in the diversion holes arranged from the second end of the chamber to the first end of the chamber is gradually reduced; the plurality of chambers comprise a plurality of flow guide chambers and at least one exhaust chamber, the plurality of flow guide chambers are separated from each other by the separation piece and are formed into flow guide parts, at least one exhaust chamber is arranged at the end parts of the flow guide parts, and the exhaust holes are arranged at the top parts of the exhaust chambers.
2. The muffler device for a scroll compressor according to claim 1, wherein the second muffler space includes a first accommodating portion and a second accommodating portion that are provided in a vertical direction, the pod is provided in the first accommodating portion, the spacer is provided in the second accommodating portion, and the first accommodating portion is provided between the second accommodating portion and the first baffle.
3. A scroll compressor, characterized in that it comprises the muffler device for a scroll compressor according to any one of claims 1 to 2.
4. A scroll compressor according to claim 3, wherein the muffler device for a scroll compressor is provided inside the scroll compressor, the scroll compressor includes a fixed plate, and the muffler device for a scroll compressor is provided on top of the fixed plate.

Description

Muffler device for scroll compressor and scroll compressor Technical Field The application relates to the technical field of scroll compressors, in particular to a muffler device for a scroll compressor and the scroll compressor. Background Scroll compressors are widely used in refrigeration systems because of their large capacity and small vibration. As technology development and market competition become increasingly hotter, the rotational speed requirements for compressors are also increasing, from 130rps to 160rps and even higher. And the displacement of the vortex compressor is continuously detected, so that the exhaust speed in the compressor is gradually increased, and the noise of the compressor is continuously increased. The compressor noise is mainly divided into pneumatic noise, electromagnetic noise and mechanical noise, and as the rotation speed and the discharge capacity of the compressor are increased, the flow rate of the refrigerant is rapidly increased, and the exhaust speed of gas is increased, especially after the intermittent exhaust of the scroll compressor, exhaust pulsation is increased (the structure of the scroll compressor is increased along with the increase of the rotation speed and the characteristic of intermittent exhaust of the movable fixed disc, so that the refrigerant gas exhibits intermittent exhaust, larger pressure pulsation can be generated in the compressor, and the pneumatic noise in the compressor is gradually increased along with the increase of the rotation speed). The reduction of compressor pulsations is typically achieved by reducing the discharge flow rate by designing the cavity volume at the top of the compressor. However, the compressor is limited by the overall height, and the volume of the cavity cannot be increased along with the rotation speed, so that aerodynamic noise can be increased along with the increase of the displacement and the rotation speed, and the normal use of the scroll compressor is affected. Therefore, there is a need to design a muffler device for a scroll compressor to solve the above problems. Disclosure of Invention In view of the above, in order to overcome the defects of the prior art, the invention provides a muffler device for a scroll compressor and the scroll compressor, which effectively solve the problem that the pneumatic noise of the existing scroll compressor can rise along with the increase of the displacement and the rotating speed. According to a first aspect of the present invention, there is provided a muffler device for a scroll compressor, wherein the muffler device for a scroll compressor includes a first sound deadening space and a second sound deadening space connected to each other by a first baffle plate, the first baffle plate includes a first flow guiding portion provided in a middle portion and a second flow guiding portion provided in an outer periphery, an exhaust hole is provided at a top portion of the second sound deadening space, an inside of the second sound deadening space is divided into a plurality of chambers by a partition, a first end of the chamber is adjacent to the first flow guiding portion, and the second flow guiding portion is located at a second end of the chamber. Preferably, the upper surface of the first baffle is taken as a plane, and the orthographic projection of the chamber on the plane gradually decreases in size from the second end of the chamber to the first end of the chamber. Preferably, the second silencing space further comprises a second baffle plate, the second baffle plate is arranged in the second silencing space, the second silencing space is divided into a first exhaust chamber and a second exhaust chamber by the second baffle plate, and the first exhaust chamber and the second exhaust chamber comprise a plurality of chambers, the first diversion part and the second diversion part. Preferably, the muffler device for a scroll compressor further includes a guide cover, the guide cover is disposed on the first guide part, and the guide cover is disposed on a part of the first guide part. Preferably, the first diversion part comprises a plurality of first diversion holes, each first diversion hole is covered by one diversion cover, and the opening directions of two adjacent diversion covers are different. Preferably, the second silencing space includes a first accommodating portion and a second accommodating portion that are disposed along a vertical direction, the pod is disposed in the first accommodating portion, the spacer is disposed in the second accommodating portion, and the first accommodating portion is disposed between the second accommodating portion and the first baffle. Preferably, the second diversion part comprises at least two groups of diversion holes, each group of diversion holes comprises a plurality of second diversion holes, at least two groups of diversion holes are sequentially arranged from the second end of the chamber to the first end of the