CN112594424B

CN112594424B - Exhaust structure, compressor and air conditioner

Info

Publication number: CN112594424B
Application number: CN202011407913.7A
Authority: CN
Inventors: 刘宇琪
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-11-01
Anticipated expiration: 2040-12-03
Also published as: CN112594424A

Abstract

The present disclosure provides an exhaust structure, including: the valve seat is arranged on the surface of a flange of the compressor and is provided with a ring groove communicated with an exhaust hole of the compressor; the valve plate is in accordance with the shape of the ring groove and covers the ring groove; the baffle plate is in accordance with the shape of the annular groove, and the valve plate is fixed on the valve seat by the baffle plate. This disclosed exhaust structure adopts the circular exhaust structure of annular air discharge duct, reduces the upper flange of conventional compressor and leads to intensity not enough because of the area that sinks of disk seat, improves the intensity of upper flange. Meanwhile, the circular valve plate can be opened integrally to exhaust when exhausting, so that the compressor exhausts more smoothly. The maximum bending angle of the valve plate is reduced by 10-25 percent compared with the original bending angle, the noise and energy loss caused by beating of the valve plate are eliminated, and the noise caused by mechanical impact is reduced. The exhaust resistance loss generated by turbulent flow in the exhaust process is reduced, and the volume efficiency loss of backflow and clearance volume re-expansion after the exhaust is finished is reduced.

Description

Exhaust structure, compressor and air conditioner

Technical Field

The disclosure belongs to the technical field of compressors, and particularly relates to an exhaust structure, a compressor and an air conditioner.

Background

Along with the improvement of living standard of people, the requirement of people on the comfort of the environment is higher and higher, and the air conditioner becomes a household appliance necessary for families. The rotary compressor is a compressor type of most air conditioning products, and the energy efficiency of the rotary compressor has a significant influence on the performance of the air conditioning products.

The exhaust valve plate is one of key parts in the compressor, and the motion state of the exhaust valve plate is directly related to the running performance and reliability of the compressor.

In the related art, the crankshaft drives the roller to rotate in a pump cavity formed by the cylinder, the upper flange and the lower flange or the partition plate, so that the circulation of air suction, compression and exhaust is realized, a gas refrigerant is sucked into the pump body from an air suction port of the cylinder, and is exhausted out of the pump body through an exhaust hole formed in the upper flange after being compressed, and when the lower flange exhausts, the lower flange is also provided with a corresponding exhaust hole. An exhaust valve plate is installed on the exhaust hole of the upper flange, one end of the exhaust valve plate is fixed on the exhaust valve seat of the upper flange through a rivet, the exhaust valve plate is in a strip shape, and the other end of the exhaust valve plate is a free movable end and covers the exhaust hole. When the gas in the cylinder is compressed to a certain pressure, the gas can be discharged out of the cylinder by opening the exhaust valve plate through the exhaust hole of the upper flange. When the exhaust is finished, the exhaust valve plate resets to close the exhaust port, so that the high-pressure gas is prevented from flowing back into the cylinder.

The valve plate baffle plate mode is adopted for exhausting, the existence of the sunken flange exhaust valve seat greatly reduces the strength of the flange, and the thickening of the valve seat can lead to the increase of the clearance volume of the compressor.

Disclosure of Invention

Therefore, the present disclosure is directed to a sunken exhaust valve seat in the related art to reduce the strength of a flange, thereby providing an exhaust structure, a compressor, and an air conditioner.

In order to solve the above problem, the present disclosure provides an exhaust structure including:

the valve seat is arranged on the surface of a flange of the compressor and is provided with a ring groove communicated with an exhaust hole of the compressor;

the valve plate is in accordance with the shape of the ring groove and covers the ring groove;

the baffle plate is in accordance with the shape of the annular groove, and the valve plate is fixed on the valve seat by the baffle plate.

In some embodiments, the exhaust holes are arranged on the axis of the ring groove, the ring groove is communicated with the exhaust holes through a plurality of inclined holes, and the inclined holes are uniformly distributed along the conical surface between the ring groove and the exhaust holes.

In some embodiments, the valve plate is circular, a first screw hole is formed in the center of the valve plate, the baffle is circular, a second screw hole is formed in the center of the baffle, a third screw hole is formed in the position, corresponding to the center of the annular groove, of the valve seat, and the screw sequentially penetrates through the second screw hole and the first screw hole and is screwed and fixed on the third screw hole.

In some embodiments, the valve plate includes an annular free end, and first void portions are disposed between the free end and the first screw holes and are uniformly distributed along the circumferential direction of the valve plate.

In some embodiments, the baffle plate comprises an annular bending part, and second hollow parts are arranged between the bending part and the second screw holes and are uniformly distributed along the circumferential direction of the baffle plate.

In some embodiments, the first and second void portions are staggered in the axial direction.

In some embodiments, the angle of the angled holes is 30-60.

In some embodiments, the projection is made along the axial direction of the compressor body, the position of the valve seat is arranged outside the working chamber of the compressor, and/or the valve seat is provided with a semi-circular groove communicated with the exhaust hole of the compressor.

A compressor adopts above-mentioned exhaust structure.

An air conditioner adopts foretell exhaust structure.

The exhaust structure, the compressor and the air conditioner provided by the disclosure at least have the following beneficial effects:

this disclosed exhaust structure adopts the circular exhaust structure of annular air discharge duct, reduces the upper flange of conventional compressor and leads to intensity not enough because of the area that sinks of disk seat, improves the intensity of upper flange. Meanwhile, the circular valve plate can be opened integrally to exhaust when exhausting, so that the compressor exhausts more smoothly. The maximum bending angle of the valve plate is reduced by 10-25 percent compared with the original bending angle, the noise and energy loss caused by beating of the valve plate are eliminated, and the noise caused by mechanical impact is reduced. The exhaust resistance loss generated by turbulent flow in the exhaust process is reduced, and the volume efficiency loss of backflow and clearance volume re-expansion after the exhaust is finished is reduced.

Drawings

FIG. 1 is a schematic structural view of a venting structure according to an embodiment of the disclosure;

FIG. 2 is a schematic structural diagram of a valve plate according to an embodiment of the disclosure;

FIG. 3 is a schematic structural view of a baffle plate according to an embodiment of the present disclosure;

FIG. 4 is a first schematic view of a valve seat position according to an embodiment of the present disclosure;

fig. 5 is a schematic view of a valve seat position according to an embodiment of the disclosure.

The reference numbers are given as:

1. a valve seat; 2. a flange; 3. an exhaust hole; 4. a ring groove; 5. a valve plate; 6. a baffle plate; 7. an inclined hole; 8. a first screw hole; 9. a second screw hole; 10. a third screw hole; 11. a screw; 12. a free end; 13. a first void portion; 14. a bending section; 15. a second void portion; 16. and a half ring groove.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

With reference to fig. 1 to 4, an embodiment of the present disclosure provides an exhaust structure, including: the valve seat 1 is arranged on the surface of a flange 2 of the compressor, and the valve seat 1 is provided with a ring groove 4 communicated with an exhaust hole 3 of the compressor; the valve plate 5, the shape of the valve plate 5 is in line with that of the ring groove 4, and the valve plate 5 covers the ring groove 4; the baffle 6, baffle 6 and annular 4 shape accord with, and baffle 6 fixes valve block 5 on disk seat 1.

The exhaust structure of this embodiment adopts the circular exhaust structure of annular air discharge duct, avoids traditional exhaust structure, realizes the exhaust through annular notch, and the upper flange that can reduce conventional compressor leads to intensity not enough because of the area of sinking of disk seat, improves the intensity of upper flange. Meanwhile, the circular valve plate can be opened integrally to exhaust when exhausting, so that the compressor exhausts more smoothly. Compared with the exhaust structure of the related art, the design of the annular groove 4 disperses the exhaust, the maximum bending angle of the free end 12 of the valve plate 5 is reduced, and the bending degree is reduced by 10-25 percent compared with the original bending degree. For example, assuming that the maximum lift is 2.2, it can now be about 1.8. Therefore, the exhaust resistance of the cylinder is reduced, the noise and energy loss caused by beating of the exhaust valve plate of the conventional compressor are eliminated, the performance of the compressor is improved, and the noise caused by mechanical impact is reduced. The exhaust resistance loss generated by turbulent flow in the exhaust process is reduced, the volume efficiency loss of backflow and clearance volume re-expansion after exhaust is finished is reduced, and the technical effects of low exhaust resistance noise and high performance are achieved.

In some embodiments, the exhaust hole 3 is arranged on the axis of the ring groove 4, the ring groove 4 is communicated with the exhaust hole 3 through a plurality of inclined holes 7, and the inclined holes 7 are uniformly distributed along the conical surface between the ring groove 4 and the exhaust hole 3.

The plurality of inclined holes 7 of the embodiment communicate the annular groove 4 with the exhaust holes 3, so that the exhaust pressure in the annular groove 4 is balanced, and a good exhaust and uniform dispersion effect can be achieved.

In some embodiments, the valve plate 5 is circular, a first screw hole 8 is formed in the center of the valve plate 5, the baffle 6 is circular, a second screw hole 9 is formed in the center of the baffle 6, a third screw hole 10 is formed in the position, corresponding to the center of the annular groove 4, of the valve seat 1, and the screw 11 sequentially penetrates through the second screw hole 9 and the first screw hole 8 and is screwed and fixed on the third screw hole 10.

The mode that the center is fixed is adopted to valve block 5, baffle 6 of this embodiment, and the atress of valve block 5 and baffle 6 is balanced, compares in the rectangular form valve block among the correlation technique, and at frequency conversion compressor high frequency operation, rectangular form valve block is patted easily and is caused the fracture, and the thickening valve block has influenced the performance of compressor again, and circular valve block lift reduces, is favorable to improving the life-span of valve block, improves the performance of compressor.

The exhaust valve plate 5 of this embodiment receives the bending force little, can use the valve plate 5 material that uses fatigue strength good, improves the life of valve plate 5. The exhaust resistance loss generated by turbulent flow in the exhaust process is reduced, the volume efficiency loss of backflow and clearance volume re-expansion after the exhaust is finished is reduced, and the technical effects of low exhaust resistance noise and high performance are achieved.

In some embodiments, the valve plate 5 includes an annular free end 12, and first hole portions 13 are disposed between the free end 12 and the first screw holes 8, and the first hole portions 13 are uniformly distributed along the circumferential direction of the valve plate 5. The baffle 6 comprises an annular bending part 14, second hollow parts 15 are arranged between the bending part 14 and the second screw holes 9, and the second hollow parts 15 are uniformly distributed along the circumferential direction of the baffle 6. The first and

second hole portions

13 and 15 are arranged alternately in the axial direction.

When the gas in the cylinder is compressed to a certain pressure, the gas is exhausted through the ring groove 4 of the upper flange 2 to open the valve plate 5 and then is discharged out of the cylinder. When the exhaust is finished, the external exhaust pressure is applied to the valve plate 5 through the second hole part 15, so that the valve plate 5 can be restored in time, and the exhaust backflow is reduced.

In some embodiments, the angle of the angled holes 7 is 30 ° -60 °, and the exhaust volume is kept comparable to or slightly less than the conventional circular exhaust port volume, avoiding increased clearance volume and reduced performance.

In some embodiments, as shown in fig. 5, the valve seat 1 is located outside the working chamber of the compressor, and/or the valve seat 1 is provided with a semi-circular groove 16 communicated with the exhaust port 3 of the compressor, so as to avoid the influence of the gas pressure change of the working chamber in the cylinder on the valve seat 1, and improve the strength of the flange 2 and the reliability of compression.

A compressor adopts above-mentioned exhaust structure.

An air conditioner adopts above-mentioned exhaust structure.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents and modifications that come within the spirit and scope of the disclosure are desired to be protected. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present disclosure, and these improvements and modifications should also be considered as the protection scope of the present disclosure.

Claims

1. An exhaust structure, characterized by comprising:

the valve seat (1), the valve seat (1) is arranged on the surface of a flange (2) of the compressor, and the valve seat (1) is provided with a ring groove (4) communicated with an exhaust hole (3) of the compressor;

the valve plate (5), the shape of the valve plate (5) is in accordance with that of the ring groove (4), and the valve plate (5) covers the ring groove (4);

the baffle (6) is in shape fit with the annular groove (4), and the valve plate (5) is fixed on the valve seat (1) by the baffle (6); exhaust hole (3) are located on the axis of annular (4), annular (4) with exhaust hole (3) are through a plurality of inclined hole (7) intercommunication, a plurality of inclined hole (7) are followed annular (4) with the circular conical surface evenly distributed between exhaust hole (3).

2. The exhaust structure according to claim 1, characterized in that the valve plate (5) is circular, a first screw hole (8) is formed in the center of the valve plate (5), the baffle (6) is circular, a second screw hole (9) is formed in the center of the baffle (6), a third screw hole (10) is formed in the position, corresponding to the center of the annular groove (4), of the valve seat (1), and a screw (11) sequentially penetrates through the second screw hole (9) and the first screw hole (8) and is screwed and fixed to the third screw hole (10).

3. An exhaust structure according to claim 2, characterized in that the valve plate (5) comprises an annular free end (12), and first holes (13) are provided between the free end (12) and the first screw holes (8), and the first holes (13) are evenly distributed along the circumferential direction of the valve plate (5).

4. An exhaust structure according to claim 3, characterized in that the baffle plate (6) comprises an annular bent portion (14), and second hole portions (15) are provided between the bent portion (14) and the second screw holes (9), the second hole portions (15) being evenly distributed in the circumferential direction of the baffle plate (6).

5. Exhaust structure according to claim 4, characterized in that the first holes (13) and the second holes (15) are axially staggered.

6. Exhaust structure according to claim 1, characterized in that the angle of the oblique holes (7) is 30-60 °.

7. Exhaust arrangement according to claim 1, characterized in that the valve seat (1) is positioned, in axial projection along the compressor body, outside the compressor working chamber and/or in that the valve seat (1) is provided with a semi-annular groove (16) communicating with the compressor discharge orifice (3).

8. A compressor characterized by employing the discharge structure of any one of claims 1 to 7.

9. An air conditioner characterized by employing the exhaust structure according to any one of claims 1 to 7.