CN108105094B

CN108105094B - Compressor and heat exchange equipment with same

Info

Publication number: CN108105094B
Application number: CN201711289118.0A
Authority: CN
Inventors: 韩鑫; 赵旭敏; 彭慧明; 周艳; 白璐琛; 金冀龙
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2023-10-03
Anticipated expiration: 2037-12-07
Also published as: CN108105094A

Abstract

The application provides a compressor and heat exchange equipment with the same. Wherein, the compressor includes: a housing; the pump body assembly is arranged in the shell; the motor is arranged in the shell and is positioned above the pump body component, the sum of the ventilation area of the motor and the clearance area between the motor and the shell is the sum S1 of the upper overflow area, the ratio of the sum S1 of the upper overflow area and the exhaust gas quantity of the compressor is a preset value A, and the ratio of A to A is more than or equal to 0.01 and less than or equal to 0.085. The application effectively solves the problem of poor working performance of the compressor in the prior art.

Description

Compressor and heat exchange equipment with same

Technical Field

The application relates to the technical field of compressors, in particular to a compressor and heat exchange equipment with the same.

Background

In the technical field of rotor compressors, the circulation condition of gas in a compressor cavity has important influence on the performance and noise of the compressor. Specifically, the low-temperature low-pressure refrigerant enters the cylinder through the gas-liquid separator to be compressed, and is compressed into high-temperature high-pressure gas. Part of high-pressure gas in the compressor cavity passes through the motor and a gap between the motor and the compressor shell, enters an upper space of the motor and is discharged from the exhaust pipe.

However, a part of high-pressure gas firstly enters the lower cavity of the compressor through the flange flow holes and the gap between the flange and the compressor shell, then enters the upper space of the motor and is discharged through the exhaust pipe, and the part of high-pressure gas causes larger flow loss in the compressor cavity, so that the compressor generates exhaust loss, and the working performance of the compressor is reduced.

Disclosure of Invention

The application mainly aims to provide a compressor and heat exchange equipment with the same, so as to solve the problem of poor working performance of the compressor in the prior art.

In order to achieve the above object, according to one aspect of the present application, there is provided a compressor comprising: a housing; the pump body assembly is arranged in the shell; the motor is arranged in the shell and is positioned above the pump body component, the sum of the ventilation area of the motor and the clearance area between the motor and the shell is the sum S1 of the upper overflow area, the ratio of the sum S1 of the upper overflow area and the exhaust gas quantity of the compressor is a preset value A, and the ratio of A to A is more than or equal to 0.01 and less than or equal to 0.085.

Further, the motor comprises a rotor and a stator sleeved outside the rotor, and the sum of the ventilation hole on the rotor and the clearance area between the stator and the rotor is the ventilation area.

Further, the pump body assembly includes: the upper flange is provided with a communication structure, part of gas can pass through the communication structure and enter the lower part of the shell, the sum of the area of the communication structure and the clearance area S2 between the upper flange and the shell is the sum of the lower overflow areas S3, the ratio of the sum of the lower overflow areas S3 to the sum of the upper overflow areas S1 is a preset value B, and the ratio of the lower overflow areas S3 to the sum of the upper overflow areas S1 is more than or equal to 2 and less than or equal to 6.

Further, the communication structure is a communication hole.

Further, a gap is formed at the outer edge of the upper flange, the outer edge of the upper flange is in contact with the inner wall of the shell, and a gap area S2 between the upper flange and the shell is formed at the gap.

Further, the upper flange has a journal extending in an axial direction thereof, the upper flange further has a flange exhaust port, and the compressor further includes: and the silencing structure is sleeved on the shaft neck and is communicated with the flange exhaust port and the inner cavity of the shell so as to guide the gas exhausted from the flange exhaust port into the inner cavity of the shell.

Further, the silencing structure is arranged to avoid the communication structure.

Further, the communication structure is a plurality of, and a plurality of communication structures set up along the circumference interval of last flange.

Further, the pump body assembly further includes: the lower flange is positioned below the upper flange; at least one cylinder located between the upper flange and the lower flange; the rotating shaft sequentially passes through the upper flange, the air cylinder and the lower flange, the motor is connected with the rotating shaft, an air cylinder exhaust port communicated with the inner cavity of the air cylinder is arranged on the end face of the air cylinder, and the air cylinder exhaust port is communicated with the flange exhaust port.

According to another aspect of the present application, there is provided a heat exchange apparatus comprising the compressor described above.

By applying the technical scheme of the application, the compressor comprises a shell, a pump body assembly and a motor. Wherein, the pump body subassembly sets up in the casing. The motor is arranged in the shell and is positioned above the pump body component, the sum of the ventilation area of the motor and the clearance area between the motor and the shell is the sum of the upper overflow area S1, the ratio of the sum of the upper overflow area S1 and the exhaust gas quantity of the compressor is a preset value A, and the ratio of A to A is more than or equal to 0.01 and less than or equal to 0.085 is satisfied. In this way, in the running process of the compressor, the reasonable design of the ratio of the sum of the overflow areas S1 of the upper part and the exhaust gas quantity of the compressor can reduce the air flow pulsation on the upper side and the lower side of the motor, thereby reducing the exhaust gas loss of the compressor caused by the air flow pulsation and improving the working performance of the compressor. Meanwhile, the reduction of air flow pulsation in the shell of the compressor can improve the running noise of the compressor, and the use experience of users is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 shows a cross-sectional view of an embodiment of a compressor according to the present application;

FIG. 2 shows a top view of the compressor of FIG. 1 with a motor assembled with a housing;

FIG. 3 shows a top view of an upper flange of the compressor of FIG. 1;

fig. 4 shows a relationship between a predetermined value a of the compressor and a loss of discharge in the present application; and

fig. 5 shows a relationship between a predetermined value B of the compressor and a loss of discharge air in the present application.

Wherein the above figures include the following reference numerals:

10. a housing; 20. a pump body assembly; 21. an upper flange; 211. a communication structure; 212. a notch; 213. a flange exhaust port; 22. a lower flange; 23. a cylinder; 24. a rotating shaft; 30. a motor; 31. a rotor; 32. a stator; 40. a sound deadening structure; 50. an upper cover; 51. an exhaust unit; 60. a gas-liquid separator; 70. a partition board.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present application.

In order to solve the problem of poor working performance of a compressor in the prior art, the application provides the compressor and heat exchange equipment with the compressor.

As shown in fig. 1 to 3, the compressor includes a housing 10, a pump body assembly 20, and a motor 30. Wherein the pump body assembly 20 is disposed within the housing 10. The motor 30 is disposed in the housing 10 and above the pump assembly 20, the sum of the ventilation area of the motor 30 and the gap area between the motor 30 and the housing 10 is an upper overflow area sum S1, and the ratio of the upper overflow area sum S1 to the displacement of the compressor is a predetermined value a, and satisfies 0.01-0.085.

By applying the technical scheme of the embodiment, in the operation process of the compressor, the reasonable design of the ratio of the sum of the upper overflow areas S1 to the exhaust gas quantity of the compressor can reduce the air flow pulsation on the upper side and the lower side of the motor, so that the exhaust gas loss of the compressor caused by the air flow pulsation is reduced, and the working performance of the compressor is improved. Meanwhile, the reduction of air flow pulsation in the shell of the compressor can improve the running noise of the compressor, and the use experience of users is improved.

In the present embodiment, the unit of the upper flow area sum S1, the gap area S2, and the lower flow area sum S3 is mm ² The discharge unit of the compressor is mm ³ 。

In the embodiment, the parameter design of the compressor can save a great amount of test time and testable resources, provide shortcuts for subsequent development and reduce the development cost of the compressor.

As shown in fig. 4, when the predetermined value a is in the range of 0.01 to 0.085, the exhaust loss of the compressor is minimized, so that the operation performance of the compressor is optimized and the operation efficiency is maximized. At the same time, the noise of the compressor in this range of values is improved.

As shown in fig. 1 and 2, the motor 30 includes a rotor 31 and a stator 32 fitted over the rotor 31, and the sum of the ventilation hole in the rotor 31 and the gap area between the stator 32 and the rotor 31 is the ventilation area. Specifically, high-temperature high-pressure air located below the motor 30 can flow to above the motor 30 through the vent hole on the rotor 31, the gap between the stator 32 and the rotor 31, and the gap between the motor 30 and the housing 10. The above arrangement of the ratio of the sum of the upper flow areas S1 and the exhaust gas of the compressor can prevent the high-temperature and high-pressure gas from entering the pump body assembly 20 again, so that most of the high-temperature and high-pressure gas discharged from the pump body assembly 20 enters the upper part of the motor 30 through the gap and the vent hole and is discharged from the shell, further, the air flow pulsation in the upper side and the lower side of the motor 30 is effectively reduced, the exhaust loss caused by the air flow pulsation is reduced, and the working efficiency of the compressor is improved. In addition, the noise of the compressor can be improved by reducing the air flow pulsation, and the use experience of users is improved.

Alternatively, the gap between the motor 30 and the housing 10 is the gap between the stator 32 trim and the housing 10.

As shown in fig. 1 and 3, the pump body assembly 20 includes an upper flange 21. Wherein the upper flange 21 has a communication structure 211, part of gas can pass through the communication structure 211 and enter the lower part of the housing 10, the sum of the area of the communication structure 211 and the gap area S2 between the upper flange 21 and the housing 10 is a lower overflow area sum S3, and the ratio of the lower overflow area sum S3 to the upper overflow area sum S1 is a predetermined value B, and satisfies that B is more than or equal to 2 and less than or equal to 6. In this way, the above arrangement can reduce the disturbance of the gas in the housing 10, so that the high-temperature and high-pressure gas discharged from the pump body assembly 20 can be better distributed, the amount of the high-temperature and high-pressure gas entering the lower space of the upper flange 21 is reduced, the gas discharge path is shortened, and the discharge loss of the compressor is reduced.

Specifically, when the compressor is operated under a high frequency condition, the amount of lubricant in the casing 10 decreases due to an increase in the oil discharge rate of the compressor, so that the oil level decreases, and at this time, the lower chamber volume of the motor 30 becomes large. The reasonable arrangement of the ratio of the upper overflow area sum S1 to the exhaust gas of the compressor and the ratio of the lower overflow area sum S3 to the upper overflow area sum S1 can reduce the amount of high-temperature and high-pressure gas entering the lower cavity of the motor 30, reduce the gas disturbance in the shell 10, further ensure that the high-temperature and high-pressure gas exhausted from the pump body assembly 20 is better distributed, reduce the entering amount of the high-temperature and high-pressure gas to the lower space of the upper flange 21, reduce the exhaust loss of the part, and improve the working efficiency and the working performance of the compressor.

As shown in fig. 5, when the predetermined value B is in the range of 2 to 6, the exhaust loss of the compressor is minimized, so that the operation performance of the compressor is optimized and the operation efficiency is maximized. At the same time, the noise of the compressor in this range of values is improved.

As shown in fig. 3, the communication structure 211 is a communication hole. The structure is simple and easy to process.

As shown in fig. 3, a notch 212 is provided at the outer edge of the upper flange 21, the outer edge of the upper flange 21 is in contact with the inner wall of the housing 10, and a gap area S2 between the upper flange 21 and the housing 10 is constituted at the notch 212. The above arrangement makes the assembly of the upper flange 21 in the housing 10 easier and also makes the machining of the upper flange 21 easier.

Specifically, the area of the gap 212 is a gap area S2, the sum of the gap area S2 and the area of the communication structure 211 is a lower overflow area sum S3, the ratio of the lower overflow area sum S3 to the upper overflow area sum S1 is a predetermined value B, and the ratio is 1-4, so that the amount of gas discharged from the pump body assembly 20 and entering the lower portion of the pump body assembly 20 is reduced, the occurrence of air flow disturbance in the housing 10 is prevented, and the working performance of the compressor is improved.

As shown in fig. 1, the upper flange 21 has a journal extending in an axial direction thereof, the upper flange 21 further has a flange discharge port 213, and the compressor further includes a sound deadening structure 40. The silencing structure 40 is sleeved on the shaft neck, and the silencing structure 40 is communicated with the flange exhaust port 213 and the inner cavity of the shell 10 so as to guide the gas exhausted from the flange exhaust port 213 into the inner cavity of the shell 10. Thus, the sound attenuating structure 40 reduces noise during operation of the compressor and improves the user experience.

Specifically, the silencing structure 40 has a silencing cavity, the flange exhaust port 213 is communicated with the silencing cavity, and high-temperature and high-pressure gas discharged from the flange exhaust port 213 enters the silencing cavity of the silencing structure 40 to be silenced, so that operation noise of the compressor is reduced.

In the present embodiment, the silencing structure 40 is provided avoiding the communication structure 211. In this way, the above arrangement can ensure that the high-temperature and high-pressure gas discharged from the flange exhaust port 213 enters the silencing cavity of the silencing structure 40, and ensure that the silencing structure 40 does not affect the normal flow of the gas in the housing 10.

Alternatively, the communication structure 211 is plural, and the plural communication structures 211 are disposed at intervals along the circumferential direction of the upper flange 21. The structure is simple and easy to process.

Optionally, the pump body assembly 20 further includes a lower flange 22, at least one cylinder 23, and a rotating shaft 24. Wherein the lower flange 22 is located below the upper flange 21. The cylinder 23 is located between the upper flange 21 and the lower flange 22. The rotating shaft 24 sequentially passes through the upper flange 21, the air cylinder 23 and the lower flange 22, the motor 30 is connected with the rotating shaft 24, an air cylinder exhaust port communicated with the inner cavity of the air cylinder 23 is arranged on the end surface of the air cylinder 23, and the air cylinder exhaust port is communicated with the flange exhaust port 213. As shown in fig. 1, in the present embodiment, the pump body assembly 20 includes two cylinders 23, an upper cylinder and a lower cylinder, respectively, and the two cylinders 23 are located between the upper flange 21 and the lower flange 22, and the upper flange and the lower flange are spaced apart by a partition 70.

Specifically, the rotor 31 of the motor 30 drives the rotating shaft 24 to rotate, so that the gas entering the upper cylinder and the lower cylinder is compressed, the compressed high-temperature and high-pressure gas is discharged into the flange exhaust port 213 through the cylinder exhaust port, and enters the silencing cavity of the silencing structure 40 through the flange exhaust port 213, the high-temperature and high-pressure gas subjected to silencing treatment is discharged from the silencing cavity, passes through the motor 30 and the gaps between the motor 30 and the housing 10, and is discharged from the housing 10.

As shown in fig. 1, the sidewall of the cylinder 23 has an intake passage communicating with the first inner chamber of the cylinder 23, and the compressor further includes a gas-liquid separator 60. Wherein the gas-liquid separator 60 is connected to the intake passage to supply gas thereto. Like this, above-mentioned setting guarantees that the refrigerant that gets into cylinder 23 through the inlet channel all is liquid for pump body subassembly 20 can normal operating, and then improves pump body subassembly's work efficiency, promotes the working property of compressor. The structure is simple and easy to process.

As shown in fig. 1, one end of the casing 10 has an open end, and the compressor further includes an upper cover 50. Wherein, the upper cover 50 is covered on the open end, and the upper cover 50 is provided with an exhaust part 51, and the gas entering the second inner cavity of the casing 10 is exhausted to the outside through the exhaust part 51. Specifically, the high-temperature and high-pressure gas discharged from the pump body assembly 20 flows to above the motor 30 through the vent hole in the rotor 31, the gap between the stator 32 and the rotor 31, and the gap between the motor 30 and the housing 10, and is then discharged from the discharge portion 51 of the upper cover 50 to the outside of the compressor. The structure of the structure is simple, the processing and the assembly are easy, and the structure of the compressor is more compact and attractive.

Alternatively, the exhaust portion 51 is an exhaust pipe. The structure is simple, easy to process and low in processing cost.

The application also provides a heat exchange device (not shown) comprising a compressor as described above. Optionally, the heat exchange device is an air conditioner.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

in the running process of the compressor, the reasonable design of the ratio of the sum of the upper overflow areas S1 and the displacement of the compressor can reduce the air flow pulsation on the upper side and the lower side of the motor, so that the exhaust loss of the compressor caused by the air flow pulsation is reduced, and the working performance of the compressor is improved. Meanwhile, the reduction of air flow pulsation in the shell of the compressor can improve the running noise of the compressor, and the use experience of users is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A compressor, comprising:

a housing (10);

a pump body assembly (20) disposed within the housing (10);

the motor (30) is arranged in the shell (10) and is positioned above the pump body assembly (20), the sum of the ventilation area of the motor (30) and the clearance area between the motor (30) and the shell (10) is the sum S1 of the upper overflow area, and the ratio of the sum S1 of the upper overflow area to the air displacement of the compressor is a preset value A and is more than or equal to 0.01 and less than or equal to 0.085.

2. The compressor of claim 1, wherein the motor (30) includes a rotor (31) and a stator (32) sleeved outside the rotor (31), and a sum of a ventilation hole on the rotor (31), a gap area between the stator (32) and the rotor (31) is the ventilation area.

3. Compressor according to claim 1, characterized in that the pump body assembly (20) comprises:

the upper flange (21), upper flange (21) has communication structure (211), and part gas can pass communication structure (211) gets into the below of casing (10), the area of communication structure (211) and the sum of clearance area S2 between upper flange (21) and casing (10) is lower overflow area sum S3, lower overflow area sum S3 with upper portion overflow area sum S1' S ratio is predetermined value B, and satisfies 2 be less than or equal to B and is less than or equal to 6.

4. A compressor according to claim 3, wherein the communication structure (211) is a communication hole.

5. A compressor according to claim 3, characterized in that the upper flange (21) has a notch (212) at its outer edge, the outer edge of the upper flange (21) being in contact with the inner wall of the housing (10), and the gap area S2 between the upper flange (21) and the housing (10) being constituted at the notch (212).

6. A compressor according to claim 3, wherein the upper flange (21) has a journal extending axially thereof, the upper flange (21) further having a flange discharge port (213), the compressor further comprising:

the silencing structure (40) is sleeved on the shaft neck, and the silencing structure (40) is communicated with the flange exhaust port (213) and the inner cavity of the shell (10) so as to guide gas exhausted from the flange exhaust port (213) into the inner cavity of the shell (10).

7. The compressor of claim 6, wherein the sound attenuating structure (40) is disposed clear of the communication structure (211).

8. The compressor according to claim 3 or 7, wherein the communication structure (211) is plural, and the plural communication structures (211) are disposed at intervals along the circumferential direction of the upper flange (21).

9. The compressor of claim 6, wherein the pump body assembly (20) further comprises:

a lower flange (22) located below the upper flange (21);

-at least one cylinder (23) located between the upper flange (21) and the lower flange (22);

the rotary shaft (24) sequentially penetrates through the upper flange (21), the air cylinder (23) and the lower flange (22), the motor (30) is connected with the rotary shaft (24), an air cylinder exhaust port communicated with an inner cavity of the air cylinder (23) is arranged on the end face of the air cylinder (23), and the air cylinder exhaust port is communicated with the flange exhaust port (213).

10. A heat exchange apparatus comprising a compressor as claimed in any one of claims 1 to 9.