CN220059909U

CN220059909U - Exhaust cavity structure of rotary compressor and rotary compressor thereof

Info

Publication number: CN220059909U
Application number: CN202223430227.9U
Authority: CN
Inventors: 邹红; 李华军; 王永昌; 王蕾永; 甘念
Original assignee: Huangshi Donper Compressor Co Ltd
Current assignee: Huangshi Donper Compressor Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-11-21
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses an exhaust cavity structure of a rotary compressor and the rotary compressor thereof, which are characterized in that the structure of the silencer is improved, namely the silencer comprises an exhaust unit besides a main body unit with a silencing cavity, the silencing cavity is formed in the main body unit, the exhaust unit is communicated with the silencing cavity, at least one exhaust hole is formed in the exhaust unit, the exhaust hole is used for exhausting in the direction away from a motor assembly, the silencer can prolong the path of exhaust by being provided with the exhaust unit, form more silencing volume, further perform expansion type silencing treatment on the exhaust gas, and further reduce the influence of the exhaust on the performance of the motor assembly by setting the exhaust direction away from the motor assembly, and prolong the service life of the compressor.

Description

Exhaust cavity structure of rotary compressor and rotary compressor thereof

Technical Field

The utility model relates to the technical field of compressors, in particular to a rotary compressor exhaust structure and a compressor with the same.

Background

Noise problems of home appliances having a refrigerating function, such as a refrigerator or an air conditioner, are increasingly receiving attention of consumers, and noise of a compressor is one of main noise sources. The noise of the compressor is divided into airflow noise, mechanical noise and electromagnetic noise, wherein the exhaust noise in the airflow noise has a great influence on the overall noise of the compressor, and how to reduce the exhaust noise becomes an important improvement direction of the compressor; the exhaust structure of the rotary compressor is conventionally that a silencer structure is added on an upper flange, as shown in fig. 1, an exhaust hole is formed in the silencer, the air outlet direction faces to a motor component of the rotary compressor, and as the temperature of air exhausted by the rotary compressor is high and the speed is high, high-temperature and high-pressure air is exhausted, air is sprayed to the motor component, the motor winding is easily damaged, the temperature of the motor winding is not reduced, and the performance coefficient of the compressor is influenced. In order to ensure that the influence of discharged gas on the motor performance is reduced on the premise of reducing the exhaust noise, the service life of the compressor is prolonged, and the problem to be solved in the field is urgent.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides an exhaust cavity structure of a rotary compressor and the rotary compressor with the exhaust cavity structure, and the silencer structure in the prior art is improved to ensure that the noise of the discharged gas is small, the direction of the gas is far away from a motor assembly, the performance influence on a motor in the compressor is reduced, and the service life of the compressor is prolonged.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the exhaust cavity structure of the rotary compressor comprises a pump body assembly, a silencer and a motor assembly, wherein the pump body assembly comprises a bearing and an exhaust channel, the exhaust cavity structure of the rotary compressor comprises the exhaust channel arranged on the pump body assembly and the silencer arranged on a flange of the bearing, a silencing cavity is arranged in a silencing cover, and the silencing cavity is communicated with an exhaust hole of the exhaust channel; the silencing cover comprises a main body unit and an exhaust unit, a silencing cavity is formed in the main body unit, the exhaust unit is communicated with the silencing cavity, at least one exhaust hole is formed in the exhaust unit, and the exhaust hole is used for exhausting air along the direction away from the motor assembly.

According to the utility model, through improving the structure of the silencing cover, namely, the silencing cover comprises the main body unit with the silencing cavity, and the exhaust unit is further provided with the exhaust unit, the exhaust unit forms more silencing volume by prolonging the exhaust path, and the influence of exhaust on the performance of the motor assembly is reduced by arranging the exhaust direction far away from the motor assembly, so that the service life of the compressor is prolonged.

Further, the exhaust unit is communicated with the main body unit through an exhaust pipeline, and at least comprises a part of arc-shaped exhaust channel, and at least one exhaust hole is formed in the arc-shaped exhaust channel.

The exhaust unit comprises a part of arc-shaped exhaust channel, the arc-shaped exhaust channel can be provided with a longer exhaust flow area in a limited space, exhaust noise is reduced, and a plurality of exhaust holes are formed in the arc-shaped exhaust channel, so that exhaust is smoother.

Further, the exhaust unit is communicated with the silencing cavity through at least one pipeline.

Through a plurality of pipeline intercommunication, can make the air current interact in the exhaust passage, reduce the speed of exhaust air current, and then reduce exhaust noise.

Further, a plurality of exhaust holes are arranged on the arc-shaped exhaust channel at equal intervals.

Further, the central angle of the arc-shaped exhaust passage is larger than 180 degrees.

Through the central angle of the arc-shaped exhaust passage being larger than 180 degrees, the arc-shaped exhaust passage can be provided with a longer exhaust flow area in a limited space, and exhaust noise is reduced.

More specifically, the arc-shaped exhaust passage is provided as an annular exhaust passage that communicates end to end.

More specifically, the arc-shaped exhaust passage is provided separately.

Further, the noise reduction cover is integrally formed.

The exhaust cavity of the silencing cover can be integrally formed in a casting or powder metallurgy process, so that the structure of the exhaust cavity of the silencing cover is more complete, the air leakage is not easy to occur, the manufacturing is simple, and the cost is low.

Further, the main body unit of the silencing cover comprises a plurality of protruding parts, and the protruding parts are communicated with the arc-shaped exhaust passage through the exhaust pipeline.

The utility model also provides a rotary compressor, which comprises the exhaust cavity structure of the rotary compressor.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the structure of the silencer is improved, namely the silencer comprises the exhaust unit, the exhaust unit forms more silencing volume by prolonging the exhaust path, and the influence of exhaust on the performance of the motor assembly is reduced by arranging the exhaust direction far away from the motor assembly, so that the service life of the compressor is prolonged.

Drawings

FIG. 1 is a schematic view of a prior art rotary compressor;

FIG. 2 is a schematic view of the structure of the exhaust chamber in the embodiment;

FIG. 3 is a schematic top view of the results of the muffler assembly of the present utility model;

FIG. 4 is a schematic top view of the muffler assembly structure of the present utility model;

FIG. 5 is a schematic view showing a connection structure of an exhaust pipe and a connection pipe according to the present utility model;

FIG. 6 is a schematic front view of the connection of the exhaust pipe and the connecting pipe according to the present utility model;

FIG. 7 is a schematic perspective view of a muffler cover structure according to the present utility model;

FIG. 8 is a schematic front view of the structure of the muffler cover of the present utility model;

FIG. 9 is a schematic view of an exhaust pipe structure according to the present utility model;

FIG. 10 is a schematic view of another exhaust pipe structure according to the present utility model;

in the figure: 1. a housing; 2. a motor assembly; 3. a rotor; 4. a stator; 5. a flange; 6. a muffler assembly; 7. a pump body assembly; 8. a crankshaft; 9. a cylinder; 10. a sound deadening cap; 11. an exhaust pipe; 12. a connecting sleeve; 13. a connecting pipe; 14. a fixing hole; 15. an exhaust hole; 16. a silencing cover; 17. a fixing part; 18. a shaft hole; 19. a sound deadening chamber.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.

The exhaust channel is arranged on the pump body assembly 7, and the silencer is arranged on the flange 5 of the bearing, and a silencing cavity is arranged in the silencer and is communicated with the exhaust channel; the top of muffler is provided with the exhaust hole, and gas enters into the amortization intracavity in the muffler from the exhaust passage of pump body assembly 7, passes through the amortization intracavity amortization and then upwards discharges through the exhaust hole. In the existing exhaust structure, since the exhaust direction is towards the motor assembly, exhaust gas is high-temperature and high-pressure gas, the rotor 3 or the stator 4 of the motor assembly 2 is affected, the temperature of windings on the stator 4 is usually increased under the impact of long-time exhaust gas, the working performance of the windings is affected, or the windings are loosened or gaps are enlarged, the working stability of the motor assembly is not facilitated, the performance of the motor assembly is further affected, and the service life of the compressor is shortened.

On the basis of the exhaust cavity structure of the existing rotary compressor, in order to reduce the influence of exhaust on a motor assembly, the embodiment provides an exhaust cavity structure of the rotary compressor, as shown in fig. 1, the conventional rotary compressor comprises a pump body assembly 7, a silencer assembly 6 and a motor assembly 2, wherein the motor assembly 2 consists of a rotor 3 and a stator 4. As shown in fig. 2, the pump body assembly 7 of the rotary compressor comprises a cylinder 9, a cylinder 9 and an exhaust channel are arranged in the pump body assembly 7, a flange 5 is fixedly arranged at the upper end of the cylinder 9, and a silencer assembly 6 is fixedly arranged on the flange 5; the crankshaft 8 passes through the silencer assembly 6 to be matched with a piston in the cylinder 9, and the motor assembly 2 drives the piston in the cylinder 9 to reciprocate through the crankshaft 8, and the piston compresses gas.

As shown in fig. 3-4, the muffler assembly 6 comprises a muffler cover 10, an exhaust pipe 11, a connecting sleeve 12 and a connecting pipeline 13, wherein the exhaust pipe 11 is connected around the muffler cover 10 through the connecting pipeline 13, one end of the connecting pipeline 13 is connected on the muffler cover 10 in a sealing way, the other end of the connecting pipeline 13 is connected with the exhaust pipe 11 in a sealing way, the exhaust pipe 11 can be formed in a split way, and the two sections of the copper drum connecting sleeve 12 of the exhaust pipe 11 form a ring shape around the muffler cover 10; a plurality of exhaust holes 15 are distributed on the bottom end of the exhaust pipe 11.

As shown in fig. 5-6 and 9-10, 3 exhaust holes 15 are uniformly distributed on the bottom end of the exhaust pipe 11, two sections of exhaust pipes 11 form an annular exhaust channel, and the exhaust pipes 11 are connected with a plurality of connecting pipelines 13; as shown in fig. 5-6, four connecting pipes 13 are connected to the exhaust pipe 11 in a sealing manner, one end of each connecting pipe 13 is connected to the muffler cover 10 in a sealing manner, two ends of one exhaust pipe 11 are connected to connecting sleeves 12, preferably, the connecting sleeves 12 can be integrally formed with the exhaust pipe 11, internal threads are arranged in the connecting sleeves 12, external threads can be arranged at two ends of the other exhaust pipe 11, the two exhaust pipes 11 are connected together in a sealing manner through threaded connection, and of course, the two exhaust pipes 11 can be connected together in a sealing manner through other sealing connection manners.

Through being provided with the blast pipe around the amortization is covered, the blast pipe can prolong the exhaust route, forms more amortization volume, further expands the circulation volume of exhaust air current, increases the exhaust circuit of exhaust air current, and then further carries out amortization to the exhaust air current, and secondly, through setting up the exhaust direction of keeping away from motor assembly, reduces the impact and the performance influence of exhaust gas to motor assembly, extension compressor's life. The discharged gas can directly enter the shell 1 and then be discharged out of the compressor through a discharge structure or a gap on the shell 1.

The exhaust unit is arranged to comprise an arc-shaped exhaust channel which is at least partially sealed, the arc-shaped exhaust channel can be provided with a longer exhaust flow area in a limited space, exhaust noise is reduced, and a plurality of exhaust holes are formed in the arc-shaped exhaust channel, so that exhaust is smoother.

7-8, the center of the silencing cover 10 is provided with a shaft hole 18, one side of the silencing cover 10 is provided with a convex silencing cover body 16, the outer side of the silencing cover body 16 is provided with a fixing part 17, the circumference of the fixing part 17 is provided with a plurality of fixing holes 14, as shown in FIG. 8, preferably, the number of the fixing holes 14 can be four, the inner side of the silencing cover body 16 is provided with a silencing cavity 19, and the outer side of the silencing cover body 16 is provided with a hole which is in sealing connection with the connecting pipeline 13; preferably, the muffler assembly 6 is integrally formed. The silencer assembly 6 can be integrally formed by adopting the existing casting or powder metallurgy process, so that the exhaust cavity structure of the silencer is more complete, the silencer is not easy to leak air, the manufacture is simple, and the cost is low.

Preferably, the silencing cover 16 of the silencer assembly 6 includes a plurality of protruding parts, and the protruding parts are provided with holes in sealing connection with the connecting pipes 13, and the number of the protruding parts is the same as that of the connecting pipes 13.

The present embodiment additionally provides a rotary compressor having the discharge chamber structure of the rotary compressor of the present embodiment.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The exhaust cavity structure of the rotary compressor comprises a pump body assembly, a silencer assembly and a motor assembly, wherein the pump body assembly comprises a flange, the exhaust cavity structure of the rotary compressor comprises an exhaust channel arranged on the pump body assembly and the silencer assembly arranged on the flange, a silencing cavity is arranged in the silencer assembly, and the silencing cavity is communicated with an exhaust hole of the exhaust channel; the silencer assembly is characterized by comprising a main body unit and an exhaust unit, wherein a silencing cavity is formed in the main body unit, the exhaust unit is communicated with the silencing cavity, at least one exhaust hole is formed in the exhaust unit, and the exhaust hole is used for exhausting air in a direction away from the motor assembly.

2. The discharge chamber structure of a rotary compressor of claim 1, wherein the discharge unit is in communication with the main body unit through a discharge pipe, the discharge unit including at least a portion of an arc-shaped discharge passage, at least one of the discharge holes being provided in the arc-shaped discharge passage.

3. The exhaust chamber structure of a rotary compressor of claim 2, wherein the exhaust unit is communicated with the muffler chamber through at least one pipe.

4. A discharge chamber structure of a rotary compressor according to claim 2 or 3, wherein a plurality of discharge holes are provided at equal intervals on the arc-shaped discharge passage.

5. The discharge chamber structure of a rotary compressor of claim 2, wherein a central angle of the arc-shaped discharge passage is greater than 180 degrees.

6. The discharge chamber structure of a rotary compressor of claim 5, wherein the arc-shaped discharge passage is provided as an annular discharge passage communicating end to end.

7. The discharge chamber structure of a rotary compressor of claim 6, wherein the arc-shaped discharge passage is provided separately.

8. A discharge chamber structure of a rotary compressor according to claim 1, 2 or 6, wherein the muffler assembly is integrally formed.

9. A discharge chamber structure of a rotary compressor as claimed in claim 3, wherein the main body unit of the muffler assembly includes a plurality of protrusions, the protrusions being in communication with the arc-shaped discharge passage through the discharge duct.

10. A rotary compressor comprising a discharge chamber structure of the rotary compressor according to any one of claims 1 to 9.