CN215805199U

CN215805199U - Pump body amortization subassembly, pump body subassembly and compressor

Info

Publication number: CN215805199U
Application number: CN202122128738.4U
Authority: CN
Inventors: 苗旺; 阙沛祯; 马舒院; 牛玉婷; 何庆南; 谭章银
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-11
Anticipated expiration: 2031-09-03

Abstract

The application provides a pump body amortization subassembly, pump body subassembly and compressor. The pump body silencing assembly comprises a lower flange and a lower flange, wherein an annular groove is formed in the lower side of the lower flange, and an exhaust port of the pump body is formed in the bottom of the annular groove; a partition provided in the annular groove, dividing the annular groove into a first chamber and a second chamber; the partition is provided with a through hole penetrating through the first cavity and the second cavity; the exhaust port is communicated with the first cavity; the cover plate covers the notch of the annular groove, and the cover plate is provided with an exhaust hole. The lower flange is provided with a partition piece, so that an annular groove in the lower flange forms two cavities, high-pressure gas fed by an exhaust port can be subjected to two-stage silencing treatment, the high-pressure gas enters the first cavity for primary silencing, then enters the second cavity for secondary silencing through the through hole, and finally is exhausted out of the lower flange through the exhaust hole; through the amortization of this application pump body amortization subassembly for exhaust high-pressure gas noise weakens greatly.

Description

Pump body amortization subassembly, pump body subassembly and compressor

Technical Field

The application belongs to the technical field of compressors, and particularly relates to a pump body silencing assembly, a pump body assembly and a compressor.

Background

On the basis of the noise reduction technology of the traditional compressor, the adoption of a silencer structure is a very common and effective measure, and the silencer structure corresponding to the compressor can be designed according to different pump body structures and the noise characteristics of the compressor.

In addition, especially for some compressors with special structures, the lower flange of the pump body is provided with an important mechanism and is provided with a skirt edge, so that the pump body cannot adopt a silencer structure fixed on the outer side of the lower flange like a conventional pump body, but the noise performance of the pump body is poor, and the use comfort of a user is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the application provides a pump body amortization subassembly, pump body subassembly and compressor, can solve among the prior art can't adopt the problem of the muffler structure of fixing in the lower flange outside like the conventional pump body.

In order to solve the above problem, the present application provides a pump body noise reduction assembly, including:

the lower flange is provided with an annular groove, the annular groove is arranged on the lower side of the lower flange, and an exhaust port of the pump body is arranged at the bottom of the annular groove;

a partition provided in the annular groove, dividing the annular groove into a first chamber and a second chamber; the partition is provided with a through hole penetrating through the first cavity and the second cavity; the exhaust port is communicated with the first cavity;

the cover plate covers the notch of the annular groove, and the cover plate is provided with an exhaust hole.

Optionally, the volume of the second chamber is equal to or greater than the volume of the first chamber.

Optionally, the separator is provided as an annular plate, and the central part is arranged in a concave manner; the separating piece covers on the groove bottom of the annular groove.

Optionally, the through hole is provided in a central portion or a sidewall of the annular plate.

Optionally, the flow area of the exhaust port is S1, the flow surface hole of the through hole is S2, and the flow area of the exhaust hole is S3, so that S3 ≥ S2 ≥ S1 is satisfied.

Optionally, the distance between the separator and the cover plate is H, and H is larger than or equal to 5 mm.

According to another aspect of the present application, there is provided a pump body assembly comprising a pump body acoustic attenuation assembly as described above.

According to another aspect of the present application, there is provided a compressor comprising a pump body noise reduction assembly as described above or a pump body assembly as described above.

The application provides a pair of pump body amortization subassembly includes: the lower flange is provided with an annular groove, the annular groove is arranged on the lower side of the lower flange, and an exhaust port of the pump body is arranged at the bottom of the annular groove; a partition provided in the annular groove, dividing the annular groove into a first chamber and a second chamber; the partition is provided with a through hole penetrating through the first cavity and the second cavity; the exhaust port is communicated with the first cavity; the cover plate covers the notch of the annular groove, and the cover plate is provided with an exhaust hole.

The lower flange is provided with a partition piece, so that an annular groove in the lower flange forms two cavities, high-pressure gas fed by an exhaust port can be subjected to two-stage silencing treatment, the high-pressure gas enters the first cavity for primary silencing, then enters the second cavity for secondary silencing through the through hole, and finally is exhausted out of the lower flange through the exhaust hole; through the amortization of this application pump body amortization subassembly for exhaust high-pressure gas noise weakens greatly, improves user comfort in use.

Drawings

Fig. 1 is a schematic structural view of a compressor according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a pump body noise reduction assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a separator according to an embodiment of the present application;

FIG. 4 is another schematic structural view of a separator according to an embodiment of the present application;

fig. 5 is a bottom view of the pump body noise reduction assembly without a cover plate according to an embodiment of the present application.

The reference numerals are represented as:

1. an upper cover; 2. a lower cover; 3. a housing; 4. a liquid separator; 5. a motor; 6. a crankshaft; 7. an upper flange; 8. an upper cylinder; 9. a partition plate; 10. a lower cylinder; 11. a lower flange; 111. an exhaust port; 12. a separator; 13. a cover plate;

201. a first chamber; 202. a second chamber; 203. a through hole; 204. and (4) exhausting holes.

Detailed Description

Referring collectively to fig. 1-5, according to an embodiment of the present application, a pump body acoustic attenuation assembly includes:

the lower flange 11 is provided with an annular groove, the annular groove is arranged at the lower side of the lower flange 11, and an exhaust port 111 of the pump body is arranged at the bottom of the annular groove;

a partition 12 provided in the annular groove, dividing the annular groove into a first chamber 201 and a second chamber 202; a through hole 203 penetrating through the first cavity 201 and the second cavity 202 is formed in the partition 12; the exhaust port 111 communicates with the first chamber 201;

and the cover plate 13 covers the notch of the annular groove, and the cover plate 13 is provided with an exhaust hole 204.

The lower flange 11 is provided with an annular groove, and it is usually possible to provide a skirt on the lower flange 11, based on that the lower flange 11 is provided with a central hole for the rotating shaft to pass through, and the lower flange 11 around the central hole extends in the axial direction, thus forming an annular groove structure on the lower flange 11 with the skirt.

The bottom of the annular groove is provided with a pump body exhaust port 111 for guiding high-pressure exhaust of the compression cavity, and a valve seat, an exhaust valve and the like are usually arranged at the position of the exhaust port 111. A partition 12 is provided in the annular groove, dividing the annular groove into two chambers: the first cavity 201 and the second cavity 202 are combined with the notches of the annular grooves and are sealed by the cover plate 13, so that the first cavity 201 and the second cavity 202 form two communicated sound attenuation cavities; high-pressure exhaust enters the first cavity 201 through the exhaust port 111 and then enters the second cavity 202 through the through hole 203, and the exhaust noise is weakened through two times of silencing treatment, so that the use comfort of a user is improved.

In some embodiments, the volume of the second cavity 202 is equal to or greater than the volume of the first cavity 201.

High-pressure exhaust firstly passes through the first cavity 201 with small volume and then is sent into the second cavity 202 with large volume, and the effect of sound elimination from one small cavity to the next large cavity is optimal according to the sound elimination principle of pneumatic noise, so that the aim of sound elimination is fulfilled.

In some embodiments, the divider 12 is provided as an annular plate with a central portion that is recessed; the partition 12 covers the bottom of the annular groove.

The partition 12 is formed as an annular plate having a recess at the center, the central hole of the annular plate is used for the shaft to pass through, and the recess is arranged axially downwards along the central hole, so that the partition 12 covers the bottom of the annular groove and forms a first cavity 201, and the cavity between the partition 12 and the cover plate 13 forms a second cavity 202.

In some embodiments, the through-hole 203 is provided in the center or sidewall of the annular plate.

The through hole 203 for communicating the first chamber 201 and the second chamber 202 may be provided in the central portion of the partitioning member 12, i.e., the sidewall of the central hole, or may be provided in the sidewall of the partitioning member 12, i.e., an axially extending portion in which the central portion is recessed.

The through hole 203 is generally arranged at a position far away from the exhaust port 111, so that the flow of high-pressure exhaust in the first cavity 201 is the largest, and the silencing effect is the best; the position of the through hole 203 on the partition 12 can be selected according to the position of the exhaust hole 204, so that the flow of the exhaust gas in the second chamber 202 is optimized at maximum.

In some embodiments, the flow area of the exhaust port 111 is S1, the flow surface of the through hole 203 is S2, and the flow area of the exhaust hole 204 is S3, so that S3 ≧ S2 ≧ S1 is satisfied.

The exhaust port 111, the through hole 203, and the exhaust hole 204, which are sequentially increased, can improve the noise reduction effect, so that exhaust noise is reduced to the optimum.

In some embodiments, the spacing between the partition 12 and the cover plate 13 is H, such that H ≧ 5 mm.

The spacing between the partition 12 and the cover plate 13 is defined in order to reduce the discharge pressure of the discharge port 111 on the lower flange 11.

The compressor shown in fig. 1 comprises an upper cover 1, a lower cover 2, a shell 3, a liquid separator 4, a motor 5, a crankshaft 6, an upper flange 7, an upper cylinder 8, a partition plate 9, a lower cylinder 10, a lower flange 11, a partition 12 and a cover plate 13; when the compressor is operated, the motor 5 provides power, the crankshaft 6 acts on the upper air cylinder 8 and the lower air cylinder 10 to compress refrigerant gas entering from the liquid separator 4, and the compressed high-temperature and high-pressure refrigerant gas is discharged from the upper flange 7, the partition plate 9 and the lower flange 11. Exhaust noise is an extremely important contributor to compressor noise, and reducing exhaust noise is a key control point in reducing compressor noise.

In the application, the first cavity is communicated with an exhaust port 111 on the lower flange 11, the exhaust port 111 is communicated with the compression cavity, and refrigerant gas exhausted from the compression cavity enters the first cavity 201 through the exhaust port 111 to perform first silencing treatment; the first chamber 201 is provided with a through hole 203 communicated with the second chamber 202, and the refrigerant gas after the first silencing treatment enters the second chamber 202 from the through hole 203 for the second silencing; the second chamber 202 has a discharge hole 204 communicating with the inner chamber of the compressor housing 3, and the refrigerant gas subjected to the second silencing is discharged out of the compressor pump body through the discharge hole 204.

It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A pump body acoustic attenuation assembly, comprising:

the lower flange (11) is provided with an annular groove, the annular groove is arranged on the lower side of the lower flange (11), and an exhaust port (111) of the pump body is arranged at the bottom of the annular groove;

a partition (12) provided in the annular groove, dividing the annular groove into a first chamber (201) and a second chamber (202); a through hole (203) which penetrates through the first cavity (201) and the second cavity (202) is formed in the separating part (12); the exhaust port (111) is in communication with the first chamber (201);

and the cover plate (13) covers the notch of the annular groove, and the cover plate (13) is provided with an exhaust hole (204).

2. Pump body acoustic attenuation assembly according to claim 1, characterized in that the volume of the second chamber (202) is equal to or greater than the volume of the first chamber (201).

3. Pump body acoustic dampening assembly according to claim 2, characterized in that the partition (12) is provided as an annular plate with a central portion which is recessed; the separating piece (12) covers the bottom of the annular groove.

4. Pump body acoustic attenuation assembly according to claim 3, characterized in that the through hole (203) is provided on the central portion or on the side wall of the annular plate.

5. The pump body noise reduction assembly according to any one of claims 1 to 4, wherein the flow area of the exhaust port (111) is S1, the flow surface hole of the through hole (203) is S2, and the flow area of the exhaust hole (204) is S3, so that S3 ≧ S2 ≧ S1 is satisfied.

6. Pump body acoustic attenuation assembly according to claim 5, characterized in that the distance between the partition (12) and the cover plate (13) is H, such that H ≧ 5 mm.

7. A pump body assembly, characterized by comprising a pump body noise attenuation assembly according to any one of claims 1 to 6.

8. A compressor, comprising a pump body acoustic dampening assembly according to any one of claims 1 to 6 or a pump body assembly according to claim 7.