CN110966203A

CN110966203A - Compressor pump body and compressor

Info

Publication number: CN110966203A
Application number: CN201911127839.0A
Authority: CN
Inventors: 吕丹丹; 孙杨菲; 杜忠诚; 李成龙; 詹丽强
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-04-07

Abstract

The invention provides a compressor pump body which comprises a rotating shaft, a piston, a flange, a limiting plate, a cylinder and a cylinder, wherein the rotating shaft is arranged on the piston; the cylinder is internally provided with a cylinder, a piston and a rotating shaft; the cylinder is provided with an air suction channel; the upper side and the lower side of the cylinder are respectively provided with a limiting plate and a flange; a first exhaust channel is arranged on the side edge of the cylinder, and a cover plate for sealing the first exhaust channel is arranged on the side edge of the cylinder; a second exhaust channel is arranged on the limiting plate and the flange on the upper part of the cylinder; the first exhaust passage communicates with the second exhaust passage. The problem of compressor pump side exhaust is solved, avoid the compression refrigerant directly to discharge into in the refrigeration oil. A compressor comprises a compressor pump body, wherein the compressor pump body is the compressor pump body. The problem of the side exhaust resistance is big, influence compression efficiency is solved, effectively prevent that the compressor from spitting oil rate and rising, avoid influencing air conditioning system energy efficiency.

Description

Compressor pump body and compressor

Technical Field

The invention belongs to the technical field of compressors, and particularly relates to an upper exhaust compressor pump body and a compressor.

Background

The cylinder and the rotating shaft of the rotary cylinder piston compressor rotate around respective centers, and the piston simultaneously reciprocates relative to the cylinder and the rotating shaft. The piston realizes the periodical enlargement and reduction of the volume cavity relative to the reciprocating motion of the cylinder; the relative circular motion of the cylinder realizes that the volume cavity is respectively communicated with the air suction channel and the exhaust channel; the above two composite movements realize the processes of air suction, compression and air exhaust of the compressor.

In the early scheme, only one exhaust port is formed, and in the later exhaust stage, the space between the head of the piston and the cylinder is gradually reduced. At this moment, the gas exhaust resistance of the far region away from the exhaust port in the compression cavity is large, over-compression is serious, and the performance of the compressor is affected. In order to solve the problem, a pressure relief hole is formed in the air cylinder at a certain angle.

The exhaust ports of the existing air cylinders are all arranged on the side surfaces of the air cylinders. In the running process of the compressor, the exhaust ports are immersed in the refrigeration oil, and the refrigerant of the compressor is directly discharged into the side refrigeration oil, so that the exhaust resistance is large, and the compression efficiency is influenced; meanwhile, the oil discharge rate of the compressor is increased, and the energy efficiency of the air conditioning system is affected.

Disclosure of Invention

The invention provides a compressor pump body, which is used for solving the problem of exhaust of the compressor pump body side and achieving the beneficial effect of preventing compressed refrigerant from being directly discharged into refrigeration oil.

The invention also provides a compressor, which solves the problems that the side exhaust resistance is large and the compression efficiency is influenced, effectively prevents the oil discharge rate of the compressor from increasing, and avoids influencing the energy efficiency of an air conditioning system.

The invention is realized by the following technical scheme:

a compressor pump body comprises a rotating shaft, a piston, a flange, a limiting plate and a cylinder; a piston and a rotating shaft are arranged in the cylinder; the cylinder is provided with an air suction channel; the upper side and the lower side of the cylinder are respectively provided with a limiting plate and a flange; the method is characterized in that: a first exhaust channel is arranged on the side edge of the cylinder, and a cover plate for sealing the first exhaust channel is arranged on the side edge of the cylinder; a second exhaust channel is arranged on the limiting plate and the flange on the upper part of the cylinder; the first exhaust passage communicates with the second exhaust passage.

Preferably, the first exhaust channel comprises an exhaust port, a pressure relief port, an exhaust groove and an exhaust hole; one side of the cylinder is provided with an exhaust groove; the inner top surface of the exhaust groove is provided with an exhaust hole which is communicated with the second exhaust channel; the inner side of the exhaust groove is provided with an exhaust port and a pressure relief port, and the exhaust groove is communicated with the inside of the cylinder.

Preferably, the flange include two flanges, the cross sectional area of upside flange is greater than the cross sectional area of downside flange, upside flange is equipped with the exhaust hole.

Preferably, the limiting plates comprise two limiting plates, the cross-sectional area of the upper limiting plate is larger than that of the lower limiting plate, and the upper limiting plate is provided with an exhaust hole.

Preferably, the second exhaust passage comprises an exhaust hole on the exhaust groove, an exhaust hole of the upper flange and an exhaust hole of the upper limiting plate, and the central lines of the two exhaust holes and the exhaust hole on the exhaust groove are collinear.

Preferably, the cross-sectional area of the upper limiting plate is smaller than that of the upper flange.

Preferably, the exhaust holes of the upper flange are provided with two groups, so that the exhaust holes are divided into a first exhaust hole and a second exhaust hole, and the aperture of the first exhaust hole is larger than that of the second exhaust hole.

Preferably, the exhaust hole of upside limiting plate set up two sets ofly, make it divide into first exhaust hole and second exhaust hole, the aperture of first exhaust hole is greater than the aperture of second exhaust hole.

Preferably, the edge of the cover plate is provided with a screw hole, the position of the screw hole is consistent with the position of a preset mounting hole on the cylinder, and the cover plate is connected with the cylinder through a bolt.

Preferably, a sealing structure is arranged between the cover plate and the cylinder.

A compressor comprises a compressor pump body, wherein the compressor pump body is the compressor pump body.

The invention has the advantages that:

the invention is provided with the first exhaust channel and the second exhaust channel, the exhaust channel changes the traditional lateral exhaust into upward exhaust, and the structural design is reasonable; the upper exhaust mode is adopted, the refrigerant discharged by the compressor is isolated from the refrigeration oil, the exhaust resistance is reduced, the oil discharge rate of the compressor is reduced, and the efficiency is improved.

The invention has simple structure and convenient installation; an exhaust groove is formed in the cylinder and is blocked through a cover plate, and a first exhaust channel is formed at the exhaust groove; the first exhaust passage is separated from the refrigeration oil through the cover plate, and the refrigerant is prevented from contacting the refrigeration oil in the whole exhaust process of the compressor.

The upper end of the exhaust groove is provided with an exhaust hole, and the positions corresponding to the limiting plate and the upper flange are provided with exhaust holes to form a second exhaust channel; the second exhaust channel enables the refrigerant to be discharged from the upper side of the cylinder, resistance to exhaust is reduced, and the air conditioner is stable and reliable in use.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a compressor according to the prior art;

FIG. 2 is a schematic diagram of a compressor pump body according to the prior art;

FIG. 3 is a full sectional view of FIG. 2;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a full sectional view of FIG. 4

FIG. 6 is a schematic view of the structure of the cylinder;

FIG. 7 is a schematic illustration of a cross-sectional view of a cylinder;

FIG. 8 is a bottom view of the cylinder;

FIG. 9 is a schematic structural view of a flange;

fig. 10 is a schematic structural diagram of a limiting plate.

In the figure, 1, a rotating shaft; 2. a piston; 3. a flange; 4. a limiting plate; 5. a cylinder; 6. an air suction passage; 7. a first exhaust passage; 71. an exhaust port; 72. a pressure relief port; 73. an exhaust groove; 74. an exhaust hole; 8. a second exhaust passage; 9. a cover plate; 10. a first exhaust port; 11. a second vent hole.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 3, the exhaust ports 71 of the cylinders 5 are opened at the side of the cylinders 5 at present. In the running process of the compressor, the exhaust ports 71 are immersed in the refrigeration oil, and the refrigerant of the compressor is directly exhausted into the refrigeration oil on the side surface, so that the exhaust resistance is large, the over-compression is serious, and the performance and the compression efficiency of the compressor are influenced; meanwhile, the oil discharge rate of the compressor is increased, and the energy efficiency of the air conditioning system is affected.

A compressor pump body is shown in figures 4 and 5 and comprises a rotating shaft 1, a piston 2, a flange 3, a limiting plate 4 and a cylinder 5; a piston 2 and a rotating shaft 1 are arranged in the cylinder 5, the cylinder 5 and the rotating shaft 1 rotate around respective centers, and a volume cavity of the cylinder 5 is respectively communicated with the air suction channel 6 and the exhaust channel; the piston 2 reciprocates simultaneously relative to the cylinder 5 and the rotating shaft 1, and the reciprocating motion of the piston 2 relative to the cylinder 5 realizes the periodical enlargement and reduction of a volume cavity; the cylinder 5 is provided with an air suction channel 6; the upper side and the lower side of the cylinder 5 are respectively provided with a limiting plate 4 and a flange 3; a first exhaust channel 7 is arranged on the side edge of the cylinder 5, a cover plate 9 for sealing the first exhaust channel 7 is arranged on the side edge of the cylinder 5, and the cover plate 9 enables the first exhaust channel 7 to be isolated from the refrigerant oil; the first exhaust passage 7 communicates with the second exhaust passage 8.

As shown in fig. 5 to 8, the first exhaust passage 7 includes an exhaust port 71, a pressure relief port 72, an exhaust groove 73, and an exhaust hole 74; one side of the cylinder 5 is provided with an exhaust groove 73; the inner top surface of the exhaust groove 73 is provided with an exhaust hole 74, and the exhaust hole 74 is communicated with the second exhaust channel 8; an exhaust port 71 and a pressure relief port 72 are provided inside the exhaust groove 73, and the exhaust groove 73 communicates with the inside of the cylinder 5.

As shown in fig. 4 and 5, the flange 3 includes two flanges 3, the cross-sectional area of the upper flange 3 is larger than that of the lower flange 3, and the upper flange 3 is provided with a vent hole 74. The limiting plates 4 comprise two limiting plates 4, the cross-sectional area of the upper limiting plate 4 is larger than that of the lower limiting plate 4, and the upper limiting plate 4 is provided with an exhaust hole 74.

As shown in fig. 9, two sets of the exhaust holes 74 of the upper flange 3 are provided to be divided into a first exhaust hole 10 and a second exhaust hole 11, and the aperture of the first exhaust hole 10 is larger than that of the second exhaust hole 11. As shown in fig. 10, two sets of the exhaust holes 74 of the upper limiting plate 4 are provided to be divided into a first exhaust hole 10 and a second exhaust hole 11, and the diameter of the first exhaust hole 10 is larger than that of the second exhaust hole 11.

As shown in fig. 5, the second exhaust passage 8 includes an exhaust hole 74 on the exhaust groove 73, an exhaust hole 74 of the upper flange 3 and an exhaust hole 74 of the upper limiting plate 4, and the two exhaust holes 74 are collinear with the center line of the exhaust hole 74 on the exhaust groove 73.

An exhaust groove 73 is formed on the cylinder 5 and is used as an exhaust channel; the cover plate 9 is used together with the refrigerating oil to separate the exhaust groove 73 from the refrigerating oil; the upper end of the exhaust groove 73 is provided with an exhaust hole 74, the positions corresponding to the limiting plate 4 and the upper flange 3 are provided with the exhaust holes 74 to form a second exhaust channel 8, and the traditional side exhaust mode is improved into an upper exhaust mode; the compressor discharges the refrigerant through the exhaust port 71, and the refrigerant firstly enters the exhaust groove 73, namely enters the first exhaust channel 7; and then the air is discharged into the compressor cavity through the air discharge hole 74 on the air discharge groove 73, the air discharge hole 74 on the limit plate 4 and the air discharge hole 74 on the upper flange 3, namely through the second air discharge channel 8. The refrigerant is not contacted with the refrigerant oil in the exhaust process of the whole compressor, and is discharged from the upper side of the cylinder 5, so that the resistance to exhaust is reduced, and the compressor is stable and reliable to use.

Example 2

On the basis of embodiment 1, as shown in fig. 5, 9-10, the flange 3 includes two flanges 3, the cross-sectional area of the upper flange 3 is larger than that of the lower flange 3, and the upper flange 3 is provided with a vent hole 74. The limiting plates 4 comprise two limiting plates 4, the cross-sectional area of the upper limiting plate 4 is larger than that of the lower limiting plate 4, and the upper limiting plate 4 is provided with an exhaust hole 74. The second exhaust channel 8 comprises an exhaust hole 74 on the exhaust groove 73, an exhaust hole 74 of the upper flange 3 and an exhaust hole 74 of the upper limiting plate 4, and the two exhaust holes 74 are collinear with the center line of the exhaust hole 74 on the exhaust groove 73. The cross-sectional area of the upper limiting plate 4 is smaller than that of the upper flange 3.

During assembly, the flange 3 and the limiting plate 4 are convenient to mount in structure, the steps are simple, the exhaust holes 74 are ensured to be consistent in position, the use effect of the second exhaust channel 8 is ensured, and the use is stable and reliable; and the flange 3 and the limiting plate 4 are simplified in structure, low in manufacturing cost and good in stability after installation on the premise of not influencing the upper exhaust mode.

Example 3

On the basis of the embodiment 1 and the embodiment 2, the corners of the cover plate 9 are provided with screw holes, the positions of the screw holes are consistent with the positions of the preset mounting holes on the air cylinder 5, and the cover plate 9 is connected with the air cylinder 5 through bolts. And a sealing structure is arranged between the cover plate 9 and the cylinder 5.

The cover plate 9 has simple structure, convenient manufacture and low use cost; the cover plate 9 separates the exhaust groove 73 from the refrigerant oil; the sealing gasket is matched for use, so that the isolation effect is good; exhaust hole 74 is seted up to exhaust groove 73 upper end, and limiting plate 4, upper flange 3 correspond the position and all set up exhaust hole 74, form second exhaust passage 8, improve traditional side exhaust mode into last exhaust mode.

The compressor discharges the refrigerant through the exhaust port 71, and the refrigerant firstly enters the exhaust groove 73, namely enters the first exhaust channel 7; and then the air is discharged into the compressor cavity through the air discharge hole 74 on the air discharge groove 73, the air discharge hole 74 on the limit plate 4 and the air discharge hole 74 on the upper flange 3, namely through the second air discharge channel 8. The refrigerant is not contacted with the refrigerant oil in the exhaust process of the whole compressor, and is discharged from the upper side of the cylinder 5, so that the resistance to exhaust is reduced, and the compressor is stable and reliable to use.

Example 4

On the basis of embodiment 1-embodiment 3, a compressor comprises a compressor pump body, and the compressor pump body is the compressor pump body. The cylinder 5 and the rotating shaft 1 rotate around respective centers, and the volume cavity of the cylinder 5 is respectively communicated with the air suction channel 6 and the exhaust channel; the piston 2 reciprocates simultaneously relative to the cylinder 5 and the rotating shaft 1, and the reciprocating motion of the piston 2 relative to the cylinder 5 realizes the periodical enlargement and reduction of a volume cavity; the above two composite movements realize the processes of air suction, compression and air exhaust of the compressor.

In the working process of the pump body assembly, the refrigerant oil is generally poured at the lower end face position of the flange 3 on the upper side; the exhaust port 71, the pressure relief port 72, the exhaust groove 73 and the exhaust hole 74 form a first exhaust channel 7, and the exhaust hole 74 is communicated with the second exhaust channel 8; an exhaust port 71 and a pressure relief port 72 are arranged on the inner side of the exhaust groove 73, and the exhaust groove 73 is communicated with the inside of the cylinder 5; the exhaust hole 74 on the exhaust groove 73, the exhaust hole 74 of the upper flange 3 and the exhaust hole 74 of the upper limit plate 4 form a second exhaust passage 8, and the two exhaust holes 74 are collinear with the center line of the exhaust hole 74 on the exhaust groove 73. The first exhaust channel 7 is communicated with the second exhaust channel 8, the exhaust of the pump body assembly is upward exhaust due to the arrangement, the oil resistance of the exhaust channel during exhaust can be reduced, and meanwhile, the oil spitting rate of the pump body assembly is reduced.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A compressor pump body comprises a rotating shaft, a piston, a flange, a limiting plate and a cylinder; a piston and a rotating shaft are arranged in the cylinder; the cylinder is provided with an air suction channel; the upper side and the lower side of the cylinder are respectively provided with a limiting plate and a flange; the method is characterized in that: a first exhaust channel is arranged on the side edge of the cylinder, and a cover plate for sealing the first exhaust channel is arranged on the side edge of the cylinder; a second exhaust channel is arranged on the limiting plate and the flange on the upper part of the cylinder; the first exhaust passage communicates with the second exhaust passage.

2. A compressor pump body according to claim 1, characterized in that: the first exhaust channel comprises an exhaust port, a pressure relief port, an exhaust groove and an exhaust hole; one side of the cylinder is provided with an exhaust groove; the inner top surface of the exhaust groove is provided with an exhaust hole which is communicated with the second exhaust channel; the inner side of the exhaust groove is provided with an exhaust port and a pressure relief port, and the exhaust groove is communicated with the inside of the cylinder.

3. A compressor pump body according to claim 1, characterized in that: the flange include two flanges, the cross sectional area of upside flange is greater than the cross sectional area of downside flange, the upside flange is equipped with the exhaust hole.

4. A compressor pump body according to claim 1, characterized in that: the limiting plates comprise two limiting plates, the cross-sectional area of the upper limiting plate is larger than that of the lower limiting plate, and the upper limiting plate is provided with exhaust holes.

5. A compressor pump body according to claim 2, 3 or 4, characterized in that: the second exhaust passage comprises exhaust holes in the exhaust groove, exhaust holes in the flange on the upper side and exhaust holes in the limiting plate on the upper side, and the exhaust holes at two positions are collinear with the central line of the exhaust holes in the exhaust groove.

6. A compressor pump body according to claim 1, characterized in that: the cross-sectional area of the upper limiting plate is smaller than that of the upper flange.

7. A compressor pump body according to claim 1, characterized in that: the exhaust holes of the upper flange are provided with two groups, so that the exhaust holes are divided into a first exhaust hole and a second exhaust hole, and the aperture of the first exhaust hole is larger than that of the second exhaust hole.

8. A compressor pump body according to claim 1, characterized in that: the exhaust holes of the upper side limiting plate are provided with two groups, so that the exhaust holes are divided into a first exhaust hole and a second exhaust hole, and the aperture of the first exhaust hole is larger than that of the second exhaust hole.

9. A compressor pump body according to claim 1, characterized in that: the edge of the cover plate is provided with a screw hole, the opening position of the screw hole is consistent with the position of a preset mounting hole on the air cylinder, and the cover plate is connected with the air cylinder through a bolt.

10. A compressor pump body according to claim 1, characterized in that: and a sealing structure is arranged between the cover plate and the cylinder.

11. A compressor, includes the compressor pump body, its characterized in that: the compressor pump body according to any one of claims 1 to 10.