CN113864197B

CN113864197B - Pump body structure, compressor and air conditioner

Info

Publication number: CN113864197B
Application number: CN202111242745.5A
Authority: CN
Inventors: 胡余生; 魏会军; 胡艳军; 阙沛祯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2023-03-21
Anticipated expiration: 2041-10-25
Also published as: CN113864197A

Abstract

The invention discloses a pump body structure, a compressor and an air conditioner, wherein the pump body structure comprises a cylinder component, a silencing component, a first flange and a second flange which are respectively arranged on the upper end surface and the lower end surface of the cylinder component, at least one of the first flange and the second flange is provided with an exhaust port, the silencing component comprises at least three silencers, and at least three cavities are formed among the adjacent silencers, the silencers and the first flange, and the silencers and the second flange; the upward circulation channel axially penetrates through at least one silencer, the cylinder assembly, the first flange and the second flange, and the downward circulation channel axially penetrates through the cylinder assembly, the first flange and the second flange; the downward circulation channel is communicated with the upward circulation channel through the cavity, or the downward circulation channel is communicated with the upward circulation channel through the silencing component and the cavity. The exhaust port can carry out the decay of noise through cavity, muffler, circulation passageway upwards and circulation passageway downwards during the exhaust, has better noise reduction.

Description

Pump body structure, compressor and air conditioner

Technical Field

The invention relates to the technical field of compressors, in particular to a pump body structure, a compressor and an air conditioner.

Background

The rolling rotor type compressor has the advantages of simple structure, high reliability, low cost and the like, and is widely applied to the field of air conditioners. The compressor is generally provided with an exhaust port on a first flange and/or a second flange for fixing a cylinder assembly, and when a high-pressure gas refrigerant is exhausted from the exhaust port, strong pressure pulses and airflow impact the interior of the compressor to generate noise.

In the related art, a silencer is generally arranged on a compressor exhaust passage, so that the noise of the compressor can be relieved to a certain extent, but the flow direction of the air flow is not considered, and a good noise reduction effect is not achieved by only the silencer.

Disclosure of Invention

In view of the above, the present invention provides a pump body structure, a compressor and an air conditioner, in which the flow direction of exhaust gas is planned by the cooperation of a plurality of cavities, an upward flow channel and a downward flow channel, and multiple noise reduction is achieved by at least three silencers.

In order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present invention provides a body structure, the pump body structure including:

a cylinder assembly;

the first flange and the second flange are respectively arranged on the upper end surface and the lower end surface of the air cylinder component, and at least one of the first flange and the second flange is provided with an exhaust port;

the silencer assembly comprises at least three silencers, at least one silencer is arranged on the first flange, the rest silencers are arranged on the second flange, and at least three cavities are formed among the adjacent silencers, the silencers and the first flange, and the silencers and the second flange;

the upward circulation channel axially penetrates through at least one silencer, the cylinder assembly, the first flange and the second flange;

the downward circulation channel penetrates through the cylinder assembly, the first flange and the second flange along the axial direction; the downward circulation channel is communicated with the upward circulation channel through the cavity, or the downward circulation channel is communicated with the upward circulation channel through the silencing assembly and the cavity.

In some embodiments, when the first exhaust port is provided on the first flange, gas exhausted from the first exhaust port is exhausted through the at least three cavities, the upward flow channel, and the downward flow channel.

In some embodiments, when the second exhaust port is provided on the second flange, the at least one cavity and the downward flow channel form a helmholtz resonator when the second exhaust port exhausts, wherein the at least one cavity includes a cavity that is engaged with the downward flow channel.

In some embodiments, the muffler assembly includes a first muffler, a second muffler, and a third muffler, the first muffler being disposed on the first flange and forming a first cavity therebetween; the second silencer and the third silencer are both arranged on the second flange, a second cavity is formed between the second silencer and the second flange, and a third cavity is formed between the second silencer and the third silencer.

In some embodiments, the first muffler includes a first journal mating surface that is disposed on the first flange and defines a first cavity with the first flange.

In some embodiments, the second muffler includes a second journal mating surface and a second gas flow channel, the second journal mating surface is disposed on the second flange and surrounds a second cavity, and the second gas flow channel is a hole formed on the second journal mating surface.

In some embodiments, the third muffler includes a muffler mating surface that mates with the second muffler and a flange mating surface that mates with the second flange.

In some embodiments, the upward flow channel sequentially penetrates through the second muffler, the second flange, the cylinder assembly, the first flange and the first muffler along the axial direction, and then is communicated with the outside of the pump body structure for exhausting gas in the pump body structure.

In some embodiments, the downward flow channel communicates with the upward flow channel through the second cavity, the second gas flow channel, and the third cavity.

In some embodiments, the gas discharged from the first exhaust port is discharged through the first cavity, the downward flow passage, the second cavity, the second muffler, the third cavity, and the upward flow passage in this order.

In some embodiments, the gas discharged from the second gas outlet is discharged through the second cavity, the second muffler, the third cavity, and the upper flow passage in this order.

When the second exhaust port exhausts, the first cavity and the downward flow channel form a Helmholtz resonant cavity.

In some embodiments, the silencing assembly comprises a fourth silencer, a fifth silencer, a sixth silencer and a seventh silencer, wherein the fourth silencer and the fifth silencer are both arranged on the first flange, a fourth cavity is formed between the fifth silencer and the first flange, and a seventh cavity is formed between the fourth silencer and the fifth silencer; the sixth silencer and the seventh silencer are both arranged on the second flange, a fifth cavity is formed between the sixth silencer and the second flange, and a sixth cavity is formed between the sixth silencer and the seventh silencer.

In some embodiments, the fourth muffler includes a fourth shaft neck mating surface, which is disposed on the first flange and surrounds the fifth muffler to form a seventh cavity, and a fourth gas exhaust channel, which is a through hole disposed on a surface of the fourth muffler.

In some embodiments, the fifth muffler includes a fifth journal mating surface that is disposed on the first flange and surrounds a fourth cavity with the first flange.

In some embodiments, the sixth muffler includes a sixth journal mating surface and a sixth gas discharge passage, the sixth journal mating surface is disposed on the second flange and surrounds the fifth cavity, and the sixth gas discharge passage is a through hole formed on a surface of the sixth muffler.

In some embodiments, the seventh muffler includes a sixth muffler mating surface that mates with the sixth muffler and a second flange mating surface that mates with the second flange.

In some embodiments, the upward flow channel sequentially penetrates through the sixth muffler, the second flange, the cylinder assembly, the first flange and the fifth muffler along the axial direction, and is communicated with the outside of the pump body structure for exhausting gas in the pump body structure.

In some embodiments, the downward flow channel communicates with the upward flow channel through the fifth cavity, the gas sixth discharge channel, and the sixth cavity.

In some embodiments, the gas discharged from the first gas outlet is discharged through the fourth cavity, the downward flow passage, the fifth cavity, the gas sixth discharge passage, the sixth cavity, the upward flow passage, the seventh cavity, and the gas fourth discharge passage in this order.

In some embodiments, the gas exhausted from the second gas exhaust port is exhausted through the fifth cavity, the gas sixth exhaust passage, the sixth cavity, the upward flow passage, the seventh cavity, and the fourth exhaust passage in this order.

In some embodiments, the fourth cavity and the downward flow channel form a helmholtz resonator when the second exhaust port exhausts.

In some embodiments, the silencing assembly comprises an eighth silencer, a ninth silencer and a tenth silencer, wherein the eighth silencer and the ninth silencer are both arranged on the first flange, an eighth cavity is formed between the ninth silencer and the first flange, and a tenth cavity is formed between the eighth silencer and the ninth silencer; the tenth silencer is arranged on the second flange, and a ninth cavity is formed between the tenth silencer and the second flange.

In some embodiments, the eighth muffler includes an eighth journal mating surface and an eighth gas exhaust channel, the eighth journal mating surface is disposed on the first flange and surrounds the tenth cavity with the ninth muffler, and the eighth gas exhaust channel is a through hole disposed on a surface of the eighth muffler.

In some embodiments, the ninth muffler includes a ninth journal mating surface that fits over the first flange and forms an eighth cavity therewith.

In some embodiments, the tenth acoustic damper includes a tenth journal mating surface and a second flange mating surface, the tenth journal mating surface being disposed on the second flange and enclosing a ninth cavity therewith.

In some embodiments, the upward flow channel sequentially penetrates through the ninth muffler, the first flange, the cylinder assembly and the second flange along the axial direction, and then is communicated with the outside of the pump body structure for exhausting gas in the pump body structure.

In some embodiments, the downward flow channel axially extends through the first flange, the cylinder assembly and the second flange in sequence and then is communicated with the upward flow channel through the tenth cavity.

In some embodiments, the gas discharged from the first gas discharge port is discharged through the eighth cavity, the downward flow passage, the tenth cavity, the upward flow passage, the tenth cavity, and the eighth gas discharge passage in this order.

In some embodiments, the gas discharged from the second gas discharge port is discharged through the ninth cavity, the upward flow passage, the tenth cavity, and the eighth gas discharge passage in this order.

When the second exhaust port exhausts, the eighth cavity and the downward flow channel form a Helmholtz resonant cavity.

According to another aspect of the present application, an embodiment of the present invention provides a compressor including the pump body structure described above.

According to another aspect of the present application, an embodiment of the present invention provides an air conditioner including the compressor described above.

Compared with the prior art, the pump body structure at least has the following beneficial effects:

at least three cavities are formed among the at least three silencers, the first flange and the second flange, and an upward circulation channel and a downward circulation channel are formed among the at least three silencers, the first flange, the second flange and the cylinder assembly; therefore, when the high-pressure gas refrigerant is discharged from the exhaust port, the high-pressure gas refrigerant passes through the at least three cavities, the at least three silencers and the upward circulation channel and/or the downward circulation channel to attenuate noise, and compared with the traditional noise reduction method of only reducing the noise through the silencers, the noise reduction device has a better noise reduction effect obviously.

On the other hand, the compressor provided by the present invention is designed based on the pump body structure, and the beneficial effects thereof refer to the beneficial effects of the pump body structure, which are not described herein again.

On the other hand, the air conditioner provided by the present invention is designed based on the compressor, and the beneficial effects thereof refer to the beneficial effects of the compressor, which are not described herein again.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is a sectional view of a pump body structure provided in embodiment 1 of the invention;

fig. 2 is a plan view of an upward flow channel and a downward flow channel of a pump body structure provided in embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic structural view of a first muffler in a pump body structure provided in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a second muffler in a pump body structure provided in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a third muffler in the pump body structure provided in embodiment 1 of the present invention;

fig. 8 is a comparison of the noise reduction effect of a pump body structure provided in embodiment 1 of the present invention;

fig. 9 is a sectional view of a pump body structure provided in embodiment 2 of the present invention;

FIG. 10 is a plan view of the upward flow channel and the downward flow channel of a pump body structure provided in embodiment 2 of the present invention;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;

FIG. 12 is a cross-sectional view taken in the direction E-E of FIG. 10;

fig. 13 is a schematic structural view of a fourth muffler in the pump body structure provided in embodiment 2 of the present invention;

fig. 14 is a schematic structural view of a fifth muffler in a pump body structure provided in embodiment 2 of the present invention;

fig. 15 is a schematic structural view of a sixth muffler in a pump body structure provided in embodiment 2 of the present invention;

fig. 16 is a schematic structural view of a seventh muffler in a pump body structure provided in embodiment 2 of the present invention;

FIG. 17 is a comparison of noise reduction effects of a pump body structure according to embodiment 2 of the present invention;

fig. 18 is a sectional view of a pump body structure provided in embodiment 3 of the invention;

FIG. 19 is a top plan view of the upward flow channels and the downward flow channels in a pump body structure provided in accordance with embodiment 3 of the present invention;

FIG. 20 is a sectional view in the direction F-F of FIG. 19;

FIG. 21 is a sectional view taken along line G-G of FIG. 19;

fig. 22 is a schematic structural view of an eighth muffler in the pump body structure provided in embodiment 3 of the present invention;

fig. 23 is a schematic structural view of a ninth muffler in the pump body structure provided in embodiment 3 of the present invention;

fig. 24 is a schematic structural view of a tenth muffler in the pump body structure provided in embodiment 3 of the present invention;

fig. 25 is a comparison of the noise reduction effect of a pump body structure provided in embodiment 3 of the present invention;

fig. 26 is a sectional view of a compressor provided in embodiment 4 of the invention, when the pump body structure of embodiment 1 is applied to the compressor;

fig. 27 is a sectional view of a compressor provided in embodiment 4 of the invention, when the pump body structure of embodiment 2 is applied to the compressor;

fig. 28 is a sectional view of a compressor provided in embodiment 4 of the invention when the pump body structure of embodiment 3 is applied to the compressor.

Wherein:

1. a cylinder assembly; 2. a first flange; 3. a second flange; 4. a noise reduction assembly; 5. a cavity; 6. an upward flow channel; 7. a downward flow channel; 8. a liquid separator; 9. a housing; 11. a first cylinder; 12. a second cylinder; 13. a partition plate; 21. a first exhaust port; 31. a second exhaust port; 41. a first muffler; 42. a second muffler; 43. a third silencer; 51. a first cavity; 52. a second cavity; 53. a third cavity; 401. a fourth muffler; 402. a fifth muffler; 403. a sixth muffler; 404. a seventh muffler; 411. a first journal mating surface; 421. a second journal mating surface; 422. a second gas discharge passage; 431. a muffler mating surface; 432. a flange mating surface; 501. a fourth cavity; 502. a seventh cavity; 503. a fifth cavity; 504. a sixth cavity; 4001. an eighth muffler; 4002. a ninth muffler; 4003. a tenth muffler; 4011. a fourth shaft neck mating surface; 4012. a fourth gas discharge passage; 4021. a fifth journal mating surface; 4031. a sixth journal mating surface; 4032. a sixth gas discharge passage; 4041. a sixth muffler mating surface; 4042. a second flange mating surface; 5001. an eighth cavity; 5002. a tenth cavity; 5003. a ninth cavity; 40011. an eighth journal mating surface; 40012. an eighth gas discharge passage; 40021. a ninth journal mating surface; 40031. a tenth journal mating surface; 40032. a second flange binding surface.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment provides a pump body structure, as shown in fig. 1 and 2, the pump body structure includes a cylinder assembly 1, a first flange 2, a second flange 3, and a noise reduction assembly 4; the first flange 2 and the second flange 3 are respectively arranged on the upper end surface and the lower end surface of the cylinder component 1, and at least one of the first flange 2 or the second flange is provided with an exhaust port; the silencer component 4 comprises at least three silencers, at least one silencer is arranged on the first flange 2, the rest silencers are arranged on the second flange 3, and at least three cavities 5 are formed among the adjacent silencers, the silencer and the first flange 2, and the silencer and the second flange 3; the upward flow channel 6 penetrates through at least one silencer, the cylinder assembly 1, the first flange 2 and the second flange 3 along the axial direction; the downward flow channel 7, the downward flow channel 7 axially penetrates the cylinder component 1, the first flange 2 and the second flange 3; the downward flow passage 7 communicates with the upward flow passage 6 through the cavity 5, or the downward flow passage 7 communicates with the upward flow passage 6 through the muffler assembly 4 with the cavity 5.

Therefore, when the high-pressure gas refrigerant is discharged from the exhaust port, the high-pressure gas refrigerant can pass through the cavity 5, the silencer, the upward circulation channel 6 and the downward circulation channel 7 to attenuate noise, and compared with the traditional noise reduction method which only adopts the silencer, the noise reduction method has the advantage of obviously better noise reduction effect.

In a specific embodiment:

when the first exhaust port 21 is provided on the first flange, the gas exhausted from the first exhaust port 21 is exhausted through the at least three cavities 5, the upward flow channel 6 and the downward flow channel 7;

thus, when the first exhaust port 21 exhausts, the gas flows through the at least three cavities 5, the upward flow channel 6 and the downward flow channel 7, and noise is gradually attenuated during the flow.

In the specific embodiments

When the second exhaust port 31 is disposed on the second flange 3, and the second exhaust port 31 disposed on the second flange 3 exhausts, the at least one cavity 5 and the downward flow channel 7 form a helmholtz resonant cavity, wherein the at least one cavity 5 includes the cavity 5 connected to the downward flow channel 7.

The Helmholtz resonant cavity can obviously reduce the noise with the frequency band close to the natural frequency of the resonant cavity, and the noise reduction principle is as follows: when the frequency of the noise passing through the resonant cavity is close to the natural frequency of the resonant cavity, the gas in the resonant cavity can generate resonance, and the existence of friction and resistance enables a large amount of sound energy to be converted into heat energy, thereby achieving the purpose of reducing the noise.

Specifically, as shown in fig. 1, the muffler assembly 4 includes a first muffler 41, a second muffler 42, and a third muffler 43, the first muffler 41 being disposed on the first flange 2 with a first cavity 51 formed therebetween; the second muffler 42 and the third muffler 43 are both disposed on the second flange 3, and a second cavity 52 is formed between the second muffler 42 and the second flange 3, and a third cavity 53 is formed between the second muffler 42 and the third muffler 43.

As shown in fig. 5, the first muffler 41 includes a first journal mating surface 411, and the first journal mating surface 411 is disposed on the first flange 2 and encloses the first cavity 51.

As shown in fig. 6, the second muffler 42 includes a second journal matching surface 421 and a second gas exhaust channel 422, the second journal matching surface 421 is disposed on the second flange 3 and surrounds the second flange to form a second cavity 52, and the second gas exhaust channel 422 is a hole formed on the second journal matching surface 421.

As shown in fig. 7, the third muffler 43 includes a muffler engagement surface 431 engaged with the second muffler 42 and a flange engagement surface 432 engaged with the second flange 3.

Specifically, the first muffler 41 has the first journal mating face 411, a cavity, and no communication passage directly communicates with the space in the housing 9; the second muffler 42 has a second journal mating surface 421, a cavity, and a second discharge passage 422 of gas; the third muffler 43 has a muffler mating surface 431, a flange mating surface 432, and a cavity.

A first silencer 41 on the first flange 2, wherein a first shaft neck matching surface 411 of the first silencer is sleeved on the first flange 2 and forms a first cavity 51 with the first flange, and the cavity is isolated from the space in the shell 9; a second silencer 42 and a third silencer 43 are sequentially arranged on the second flange 3, and a second shaft neck matching surface 421 of the second silencer 42 is sleeved on the second flange 3 and forms a second cavity 52 with the second flange; the third muffler 43, the second muffler 42 and the second flange 3 are attached to enclose a third cavity 53.

In the muffler assembly 4 having this structure, as shown in fig. 4, the upward flow path 6 sequentially penetrates the second muffler 42, the second flange 3, the cylinder assembly 1, the first flange 2, and the first muffler 41 in the axial direction, and then communicates with the outside of the pump body structure to discharge the gas in the pump body structure.

As shown in fig. 3, the downward flow path 7 passes through the first flange 2, the cylinder assembly 1, and the second flange 3 in this order, and then communicates with the upward flow path 6 via the second cavity 52, the second gas discharge path 422, and the third cavity 53.

Specifically, the first cavity 51 and the second cavity 52 communicate through the downward flow channel 7; the second cavity 52 and the third cavity 53 communicate through the second muffler 42.

As shown in fig. 3 and 4, when the first exhaust port 21 is provided in the first flange 2, the gas discharged from the first exhaust port 21 is discharged through the first cavity 51, the downward flow passage 7, the second cavity 52, the second muffler 42, the third cavity 53, and the upward flow passage 6 in this order.

It can be seen that the gas in the first exhaust port 21 passes through the first cavity 51, the downward flow channel 7, the second cavity 52, the second muffler 42, the third cavity 53 and the upward flow channel 6, the gas flows through the cavities, channels and mufflers, and the noise is attenuated slowly during the flowing process, so that the noise reduction effect is obvious.

As shown in fig. 4, when the second exhaust port 31 is provided in the second flange 3, the gas discharged from the second exhaust port 31 is discharged through the second cavity 52, the second muffler 42, the third cavity 53, and the upper flow path 6 in this order.

In the present embodiment, when the second exhaust port 31 exhausts, the first cavity 51 communicates with the second cavity 52 through the downward flow channel 7, which functions as a helmholtz resonator, and enhances the silencing effect when the second exhaust port 31 exhausts.

The helmholtz resonant cavity in this embodiment is formed by the first cavity 51 and the downward flow channel 7, and the purpose of reducing noise is achieved by buffering the pressure fluctuation of the gas by providing a larger cavity (the first cavity 51) and a communication channel (the downward flow channel 7) in the gas flow channel.

In the present embodiment, the cylinder assembly 1 includes at least one cylinder, for example, the cylinder assembly 1 may include one cylinder, and the cylinder assembly 1 may also include two cylinders (the first cylinder 11 and the second cylinder 12) with a partition plate 13 disposed therebetween. That is, the compressor in the present embodiment may be a single-cylinder compressor or a double-cylinder compressor.

In addition, the air cylinder assembly 1 can further comprise a piston and a sliding sheet, the piston is arranged in the air cylinder, the air cylinder is divided into a high-pressure cavity and a low-pressure cavity by the piston and the sliding sheet, and the piston compresses a refrigerant in the rotating process so that the pressure in the high-pressure cavity rises.

Fig. 8 is a line chart comparing the noise reduction and silencing effects of the compressor provided by this embodiment with those of the conventional compressor, and it can be seen from the graph that the silencing effect of the compressor provided by this embodiment in the 0-4000HZ frequency band is significantly improved compared with that of the conventional compressor.

Example 2

This embodiment provides a compressor, and the main difference between them is in the specific structure of the sound-deadening assembly 4, compared with embodiment 1.

As shown in fig. 9 and 10, the muffler assembly 4 in the present embodiment includes a fourth muffler 401, a fifth muffler 402, a sixth muffler 403, and a seventh muffler 404, the fourth muffler 401 and the fifth muffler 402 are both disposed on the first flange 2, and a fourth cavity 501 is formed before the fifth muffler 402 and the first flange 2, and a seventh cavity 502 is formed between the fourth muffler 401 and the fifth muffler 402; sixth muffler 403 and seventh muffler 404 are both disposed on second flange 3, and fifth cavity 503 is formed between sixth muffler 403 and second flange 3, and sixth cavity 504 is formed between sixth muffler 403 and seventh muffler 404.

In a specific embodiment:

as shown in fig. 13, fourth muffler 401 includes a fourth shaft neck fitting surface 4011 and a fourth gas exhaust channel 4012, fourth shaft neck fitting surface 4011 is fitted over first flange 2 and encloses seventh cavity 502 with fifth muffler 402, and fourth gas exhaust channel 4012 is a through hole formed in the surface of fourth muffler 401.

As shown in fig. 14, the fifth muffler 402 includes a fifth journal mating surface 4021, and the fifth journal mating surface 4021 is sleeved on the first flange 2 and encloses a fourth cavity 501 with the first flange.

As shown in fig. 15, sixth muffler 403 includes a sixth journal mating surface 4031 that is fitted over second flange 3 and that surrounds fifth cavity 503, and a sixth gas discharge passage 4032 that is a through hole opened in a surface of sixth muffler 403.

As shown in fig. 16, seventh muffler 404 includes a sixth muffler mating surface 4041 to which sixth muffler 403 is mated, and a second flange mating surface 4042 to which second flange 3 is mated.

Specifically, fourth muffler 401 includes a fourth journal mating surface 4011, a cavity, and a fourth discharge passage 4012 for gas; the fifth muffler 402 has a fifth journal mating surface 4021 and a cavity; sixth muffler 403 has a sixth journal mating surface 4031, a cavity and a sixth exhaust gas passage 4032; seventh muffler 404 has second flange mating surface 4042, sixth muffler mating surface 4041, and a cavity.

A fourth silencer 401 and a fifth silencer 402 are sequentially arranged on the first flange 2, a fifth shaft neck matching surface 4021 of the fifth silencer 402 is sleeved on the first flange 2 and surrounds the first flange 2 to form a fourth cavity 501, and a fourth shaft neck matching surface 4011 of the fourth silencer 401 is sleeved on the first flange 2 and surrounds the fifth silencer 402 to form a seventh cavity; a sixth muffler 403 and a seventh muffler 404 are sequentially arranged on the second flange 3, and a sixth journal matching surface 4031 of the sixth muffler 403 is sleeved on the second flange 3 and forms a fifth cavity 503 with the second flange; the seventh muffler 404, the sixth muffler 403 and the second flange 3 are attached to enclose a sixth cavity 504.

The upward flow passage 6 sequentially penetrates through the sixth muffler 403, the second flange 3, the cylinder assembly 1, the first flange 2, and the fifth muffler 402 in the axial direction, and is communicated with the outside of the pump body structure to discharge gas in the pump body structure.

The downward flow channel 7 passes through the first flange 2, the cylinder assembly 1, and the second flange 3 in this order, and then communicates with the upward flow channel 6 via the fifth cavity 503, the sixth gas discharge channel 4032, and the sixth cavity 504.

Specifically, fourth cavity 501 and fifth cavity 503 communicate through downward flow passage 7, fifth cavity 503 and sixth cavity 504 communicate through sixth exhaust passage 4032 for gas on sixth muffler 403, and sixth cavity 504 and seventh cavity 502 communicate through upward flow passage 6.

As shown in fig. 10 to 12, when the first exhaust port 21 is provided in the first flange 2, the gas exhausted from the first exhaust port 21 is exhausted through the fourth cavity 501, the downward flow channel 7, the fifth cavity 503, the gas sixth exhaust channel 4032, the sixth cavity 504, the upward flow channel 6, the seventh cavity 502, and the gas fourth exhaust channel 4012 in this order.

It can be seen that the gas in the first exhaust port 21 passes through the fourth cavity 501, the downward flow channel 7, the fifth cavity 503, the sixth gas exhaust channel 4032, the sixth cavity 504, the upward flow channel 6 and the seventh cavity 502, the gas flows through the cavities, channels and the silencer, and the noise is slowly attenuated in the flowing process, so that the noise reduction effect is obvious.

As shown in fig. 12, when the second exhaust port 31 is provided in the second flange 3, the gas exhausted from the second exhaust port 31 is exhausted through the fifth cavity 503, the gas sixth exhaust passage 4032, the sixth cavity 504, the upward flow passage 6, the seventh cavity 502, and the gas fourth exhaust passage 4012 in this order.

In this embodiment, when the second exhaust port 31 exhausts, the fourth cavity 501 communicates with the fifth cavity 503 through the downward flow channel 7, which functions as a helmholtz resonator, and enhances the silencing effect of the second exhaust port 31 during exhausting.

The helmholtz resonant cavity in this embodiment is formed by the fourth cavity 501 and the downward flow channel 7, and the purpose of reducing noise is achieved by buffering the pressure fluctuation of the gas by providing a larger cavity (the fourth cavity 501) and a communication channel (the downward flow channel 7) on the gas flow channel.

In addition, the cylinder assembly 1 can further comprise a piston and a sliding sheet, the piston is arranged in the cylinder, the piston and the sliding sheet divide the cylinder into a high-pressure cavity and a low-pressure cavity, and the piston compresses a refrigerant in the rotating process so that the pressure in the high-pressure cavity is increased.

Fig. 17 is a line chart comparing the noise reduction and silencing effects of the compressor provided by this embodiment with those of the conventional compressor, and it can be seen from the graph that the silencing effect of the compressor provided by this embodiment in the 0-4000HZ frequency band is significantly improved compared with that of the conventional compressor.

Example 3

This embodiment provides a compressor, and the main difference is in the specific structure of the sound deadening assembly 4 as compared with embodiment 1 and embodiment 2.

As shown in fig. 18, the muffler assembly 4 of the present embodiment includes an eighth muffler 4001, a ninth muffler 4002, and a tenth muffler 4003, the eighth muffler 4001 and the ninth muffler 4002 are both disposed on the first flange 2, an eighth cavity 5001 is formed between the ninth muffler 4002 and the first flange 2, and a tenth cavity 5002 is formed between the eighth muffler 4001 and the ninth muffler 4002; the tenth muffler 4003 is provided on the second flange 3, and a ninth cavity 5003 is formed between the tenth muffler 4003 and the second flange 3.

In a specific embodiment:

as shown in fig. 22, the eighth muffler 4001 includes an eighth journal mating surface 40011 and an eighth gas exhaust channel 40012, the eighth journal mating surface 40011 is fitted over the first flange 2 and surrounds the ninth muffler 4002 to form a tenth cavity 5002, and the eighth gas exhaust channel 40012 is a through hole opened on the surface of the eighth muffler 4001.

As shown in fig. 23, the ninth muffler 4002 includes a ninth journal mating surface 40021, and the ninth journal mating surface 40021 is disposed on the first flange 2 and forms an eighth cavity 5001 therewith.

As shown in fig. 24, the tenth silencer 4003 includes a tenth axle journal mating surface 40031 and a second flange mating surface 40032, and the tenth axle journal mating surface 40031 is sleeved on the second flange 3 and encloses a ninth cavity 5003 with the second flange 3;

the tenth silencer 4003 is separately disposed on the second flange 3, and in order to ensure that the ninth cavity 5003 enclosed by the tenth silencer 4003 and the second flange 3 is isolated from the high pressure inside the housing, the tenth silencer 4003 and the second flange 3 are in contact at two positions, which are not the tenth axial-radial matching surface 40032 and the second flange attachment surface 40032.

Specifically, eighth muffler 4001 has eighth journal mating surface 40011, a cavity, and eighth gas exhaust channel 40012; the ninth muffler 4002 has a ninth journal mating surface 40021, a cavity; the tenth muffler 4003 has a tenth journal mating surface 40031 and a cavity.

A ninth muffler 4002 and an eighth muffler 4001 are sequentially arranged on the first flange 2, a ninth shaft neck matching surface 40021 of the ninth muffler 4002 is sleeved on the first flange and forms an eighth cavity 5001 with the first flange, an eighth shaft neck matching surface 40011 of the eighth muffler 4001 is sleeved on the first flange 2 and forms a tenth cavity 5002 with the ninth muffler 4002; tenth silencer 4003 is disposed on second flange 3, and ninth cavity 5003 is enclosed by second flange 3 and tenth silencer 4003.

In a specific embodiment:

as shown in fig. 19 to 21, the upward flow path 6 passes through the ninth muffler 4002, the first flange 2, the cylinder block 1, and the second flange 3 in this order in the axial direction, and then communicates with the outside of the pump body structure to discharge the gas in the pump body structure.

The downward flow channel 7 sequentially penetrates through the first flange 2, the cylinder assembly 1 and the second flange 3 along the axial direction, and then is communicated with the upward flow channel 6 through the tenth cavity 5002.

When the first exhaust port 21 is provided in the first flange 2, the gas exhausted from the first exhaust port 21 passes through the eighth cavity 5001, the downward flow channel 7, the tenth cavity 5002, the upward flow channel 6, the tenth cavity 5002, and the eighth gas exhaust channel 40012 in this order.

It can be seen that the gas in the first exhaust port 21 passes through the eighth cavity 5001, the downward flow channel 7, the tenth cavity 5002, the upward flow channel 6, the tenth cavity 5002 and the eighth gas exhaust channel 40012, and the gas flows through the cavities, channels and the muffler, so that the noise is slowly attenuated during the flowing process, and the noise reduction effect is obvious.

As shown in fig. 21, when the second exhaust port 31 is provided in the second flange 3, the gas exhausted from the second exhaust port 31 is exhausted through the ninth cavity 5003, the upward flow channel 6, the tenth cavity 5002, and the eighth gas exhaust channel 40012 in this order.

In this embodiment, when the second exhaust port 31 exhausts, the ninth cavity 5003 communicates with the eighth cavity 5001 through the downward flow channel 7, which functions as a helmholtz resonator, and enhances the silencing effect when the second exhaust port 31 exhausts.

The helmholtz resonant cavity in this embodiment is formed by the eighth cavity 5001 and the downward flow channel 7, and the purpose of reducing noise is achieved by buffering the pressure fluctuation of the gas by providing a larger cavity (the eighth cavity 5001) and a communication channel (the downward flow channel 7) on the gas flow channel.

Fig. 25 is a comparison line chart of the noise reduction and silencing effect of the compressor provided by this embodiment and the conventional compressor, and it can be seen from the comparison line chart that the silencing effect of the compressor provided by this embodiment in the 200-700HZ frequency band is significantly improved compared with the conventional compressor.

Example 4

This embodiment provides a compressor including the pump body structure of any one of embodiments 1 to 3.

When the pump body structure of embodiment 1 is applied to the compressor, a sectional view is shown in fig. 26.

When the pump body structure of embodiment 2 is applied to the compressor, a sectional view is shown in fig. 27.

When the pump body structure of embodiment 3 is applied to the compressor, a sectional view is shown in fig. 28.

In this embodiment, the compressor further includes a liquid separator 8 and a shell 9, and the liquid separator 8 functions to separate gas and liquid, store refrigerant liquid and lubricating oil, and buffer suction pressure pulses.

Example 5

The present embodiment provides an air conditioner including the compressor of embodiment 4.

In summary, it is easily understood by those skilled in the art that the advantageous technical features described above can be freely combined and superimposed without conflict.

While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A pump body structure, characterized in that the pump body structure comprises:

a cylinder assembly (1);

the air cylinder component comprises a first flange (2) and a second flange (3), wherein the first flange (2) and the second flange (3) are respectively arranged on the upper end surface and the lower end surface of the air cylinder component (1), and at least one of the first flange (2) and the second flange (3) is provided with an exhaust port;

the silencer assembly (4) comprises at least three silencers, at least one silencer is arranged on the first flange (2), the rest silencers are arranged on the second flange (3), and at least three cavities (5) are formed among the adjacent silencers, the silencers and the first flange (2) and the silencers and the second flange (3);

an upward flow channel (6), said upward flow channel (6) axially extending through at least one of said muffler, cylinder assembly (1), first flange (2) and second flange (3);

a downward flow channel (7), wherein the downward flow channel (7) axially penetrates through the cylinder assembly (1), the first flange (2) and the second flange (3); the downward circulation channel (7) and the upward circulation channel (6) are communicated with the cavity (5) through a silencing component (4);

the silencing assembly (4) comprises a fourth silencer (401), a fifth silencer (402), a sixth silencer (403) and a seventh silencer (404), the fourth silencer (401) and the fifth silencer (402) are arranged on the first flange (2), a fourth cavity (501) is formed between the fifth silencer (402) and the first flange (2), and a seventh cavity (502) is formed between the fourth silencer (401) and the fifth silencer (402); the sixth silencer (403) and the seventh silencer (404) are both arranged on the second flange (3), a fifth cavity (503) is formed between the sixth silencer (403) and the second flange (3), a sixth cavity (504) is formed between the sixth silencer (403) and the seventh silencer (404), a gas discharge passage is formed on the fourth silencer (401) and the sixth silencer (403), and the gas discharge passage is not formed on the fifth silencer (402) and the seventh silencer (404).

2. The pump body structure according to claim 1, characterized in that, when a first exhaust port (21) is provided on the first flange (2), gas exhausted from the first exhaust port (21) is exhausted through at least three of the cavities (5), an upward flow passage (6), and a downward flow passage (7).

3. The pump body structure according to claim 2, characterized in that at least one cavity (5) forms a Helmholtz resonance chamber with the downward flow channel (7) when the second exhaust port (31) is exhausted when the second exhaust port (31) is provided on the second flange (3), wherein at least one cavity (5) comprises a cavity (5) which is in communication with the downward flow channel (7).

4. The pump body structure according to claim 3, characterized in that the fourth muffler (401) comprises a fourth shaft neck fitting surface (4011) and a fourth gas discharge passage (4012), the fourth shaft neck fitting surface (4011) is sleeved on the first flange (2) and encloses a seventh cavity (502) with the fifth muffler (402), and the fourth gas discharge passage (4012) is a through hole opened on the surface of the fourth muffler (401).

5. The pump body structure according to claim 4, characterized in that the fifth muffler (402) comprises a fifth journal mating surface (4021), and the fifth journal mating surface (4021) is sleeved on the first flange (2) and encloses a fourth cavity (501) with the first flange.

6. A pump body structure according to claim 5, characterized in that the sixth muffler (403) includes a sixth journal mating surface (4031) and a sixth gas exhaust channel (4032), the sixth journal mating surface (4031) is fitted over the second flange (3) and encloses a fifth cavity (503) therewith, and the sixth gas exhaust channel (4032) is a through hole opened in a surface of the sixth muffler (403).

7. The pump body structure according to claim 6, wherein the seventh muffler (404) includes a sixth muffler mating face (4041) that mates with the sixth muffler (403) and a second flange mating face (4042) that mates with the second flange (3).

8. The pump body structure according to claim 7, wherein the upward flow channel (6) axially penetrates through the sixth muffler (403), the second flange (3), the first flange (2) of the cylinder assembly (1), and the fifth muffler (402) in sequence, and is communicated with the outside of the pump body structure for exhausting gas in the pump body structure.

9. Pump body structure according to claim 8, characterized in that the downward flow channel (7) communicates with the upward flow channel (6) through the fifth cavity (503), the sixth exhaust channel (4032) of gas and the sixth cavity (504).

10. The pump body structure according to claim 9, wherein the gas discharged from the first gas discharge port (21) is discharged through a fourth cavity (501), a downward flow passage (7), a fifth cavity (503), a sixth gas discharge passage (4032), a sixth cavity (504), an upward flow passage (6), a seventh cavity (502), and a fourth gas discharge passage (4012) in this order.

11. The pump body structure according to claim 10, wherein the gas discharged from the second gas discharge port (31) is discharged through a fifth cavity (503), a gas sixth discharge passage (4032), a sixth cavity (504), an upward flow passage (6), a seventh cavity (502), and a gas fourth discharge passage (4012) in this order.

12. The pump body structure according to claim 11, wherein the fourth cavity (501) and the downward flow channel (7) constitute a helmholtz resonator when the second exhaust port (31) exhausts.

13. A compressor, characterized in that it comprises a pump body structure according to any one of claims 1 to 12.

14. An air conditioner characterized in that it comprises the compressor of claim 13.