CN214221491U - Pump body assembly, compressor and air conditioner with same - Google Patents

Abstract

The application provides a pump body assembly, a compressor and an air conditioner with the same, wherein the pump body assembly comprises a flange part, a cylinder structure and a low-pressure cavity; the low-pressure cavity is arranged between the cylinder structure and the flange part; the gas pressure in the low pressure chamber is less than the gas pressure in the working chamber of the cylinder structure. According to pump body subassembly, compressor and have its air conditioner of this application, can improve compressor reliability under the condition that does not reduce compressor performance.

Description

Pump body assembly, compressor and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a pump body assembly, a compressor and an air conditioner with the pump body assembly and the compressor.

Background

At present, because the rotor compressor has the advantages of simple structure, relatively low cost and high energy efficiency, the rotor compressor is widely popularized and applied in the market, the frequency conversion proportion is continuously improved in recent years, and compared with a fixed-frequency compressor, the frequency conversion compressor can realize a larger refrigerating/heating capacity range by adjusting the rotating speed, but simultaneously can meet the requirements of reliability and energy efficiency when used under different working conditions. The pump body structure of the conventional compressor adopts a flange, a cylinder, a partition part (a single cylinder is not needed, and double cylinders and multiple cylinders are provided) and a roller to form a compression cavity, the compression cavity is sealed by using screws for fixing, and a crankshaft and the flange are adopted to form an operation shaft.

However, according to the research, the flange in the pump body structure is easy to deform due to the pretightening force of the screw and the external force action in the compression cavity, and especially when the pump body structure is operated under a heavy working condition and a high frequency, the deformation of the end face of the flange is intensified, the gap between the flange and the roller is affected, the fluid lubrication between the flange and the roller and between the partition part and the end face of the roller cannot be maintained, the end face abrasion is easy to generate under the conditions of oil-starved lubrication and dry friction, and the reliability of the compressor is affected. Generally, when the compressor reliability is not satisfied in design, enlarging the clearance is a main means for improving the reliability, but it causes a reduction in the compressor performance.

Therefore, how to provide a pump body assembly capable of improving the reliability of the compressor without reducing the performance of the compressor, the compressor and the air conditioner with the compressor become problems to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the present invention is to provide a pump body assembly, a compressor and an air conditioner having the same, which can improve the reliability of the compressor without reducing the performance of the compressor.

In order to solve the above problem, the present application provides a pump body assembly including:

a flange portion;

a cylinder structure;

a low pressure chamber; the low-pressure cavity is arranged between the cylinder structure and the flange part; the gas pressure in the low pressure chamber is less than the gas pressure in the working chamber of the cylinder structure.

Preferably, the cylinder structure comprises an intake port; the low pressure chamber is communicated with the air suction port.

Preferably, the flange portion comprises a flange end; a groove is formed in the end face of the end part of the flange; the pump body assembly further comprises a partition; the separating part is blocked at the notch of the groove; a low-pressure cavity is formed between the separating part and the groove.

Preferably, the partition comprises a partition plate; the partition board is provided with a mounting hole; the mounting hole is used for mounting a crankshaft.

Preferably, the partition further comprises an axial extension; the first end of the axial extension part is connected with the clapboard; and the axial extension part is of an annular structure; the annular structure is disposed circumferentially around the mounting hole.

Preferably, the partition further comprises a seal; the sealing element is arranged on the axial extension part; the sealing element is an annular structure arranged around the circumference of the mounting hole; the sealing element is connected with the groove bottom of the groove in a sealing mode.

Preferably, a sealing groove is arranged on the axial extension part; the sealing element is arranged in the sealing groove;

alternatively, the seal comprises a seal ring and a seal cartridge; the sealing cylinder is arranged on the outer peripheral side of the sealing ring; the inner peripheral side of the seal ring is connected to the second end of the axially extending portion.

Preferably, the wall thickness of the sealing cylinder is D1; the thickness of the sealing ring is D2; the axial extension part is of a cylindrical structure; the thickness of the wall of the cylindrical structure is D3; the groove depth of the groove is H1; the maximum distance between the inner end surface of the partition plate and the seal member in the direction of the central axis of the mounting hole is H2; wherein D1 is more than or equal to 1 mm; and/or D2 is more than or equal to 1; and/or D3 is more than or equal to 1 mm; and/or, H2-H1 are more than 0 and less than or equal to 0.1 mm.

Preferably, D1 is 1.2-3 mm; and/or D2 is 1-3 mm; and/or D3 is 1-3 mm.

A pump body assembly comprising a cylinder structure; the cylinder structure comprises a valve body channel and a cylinder exhaust channel; the cylinder exhaust passage, the valve body passage and the working cavity of the cylinder are communicated in sequence; an exhaust valve is arranged in the valve body channel; the exhaust valve can move in the valve body channel to open or close the cylinder exhaust channel.

Preferably, the first end of the valve body channel is communicated to the working cavity of the cylinder; the cylinder exhaust passage is communicated to the side wall of the valve body passage; the exhaust valve is movably and hermetically connected with the valve body channel.

Preferably, the exhaust valve is a valve bead; the valve ball is movably and hermetically connected with the valve body channel.

Preferably, a fixing piece is arranged in the valve body channel; the fixing piece is positioned at the second end of the valve body channel; the fixing piece is connected with the exhaust valve through an elastic piece.

Preferably, the pump body assembly comprises a flange portion; a back pressure through hole is formed in the flange part; the back pressure through hole penetrates through the end part of the flange; the back pressure through hole is communicated with the second end of the valve body channel.

Preferably, the fixing piece is provided with a flow hole; the circulation hole is communicated with the valve body channel and the backpressure through hole;

and/or the fixing piece is in interference fit with the valve body channel;

and/or, the pump body assembly further comprises a silencer; the back pressure through hole is positioned in the silencer.

Preferably, the central axis of the valve body passage is at an angle to the central axis of the cylinder structure.

Preferably, in the direction close to the working cavity of the cylinder structure, the valve body channel comprises a first section and a second section which are communicated in sequence; the cross-sectional area of the first section is a fixed value; and/or the cross-sectional area of the second section gradually decreases towards the working cavity of the cylinder structure.

Preferably, the cross-sectional diameter of the cylinder exhaust passage is D4; the first section has a cross-sectional diameter D5; wherein D5 is more than or equal to D4.

According to still another aspect of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.

The application provides a pump body subassembly, compressor and have its air conditioner, can be effectual under the condition that does not reduce the compressor performance, improve the compressor reliability.

Drawings

FIG. 1 is a schematic structural view of a pump body assembly according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a flange portion according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a partition according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a pump body assembly according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a pump body assembly according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a cylinder structure according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a cylinder structure according to an embodiment of the present application.

The reference numerals are represented as:

1. a flange portion; 11. a flange suction channel; 12. a flange exhaust passage; 13. a back pressure through hole; 2. a cylinder structure; 21. a cylinder suction passage; 22. a cylinder exhaust passage; 23. a valve body passage; 24. an air suction port; 3. a low pressure chamber; 41. a partition plate; 42. an axial extension; 43. a seal member; 431. a seal ring; 432. a sealing cylinder; 51. an exhaust valve; 52. an elastic member; 53. and a fixing member.

Detailed Description

Referring to fig. 1 in combination, according to an embodiment of the present application, a pump body assembly includes a flange portion 1, a cylinder structure 2, and a low pressure chamber 3; the low-pressure cavity 3 is arranged between the cylinder structure 2 and the flange part 1; the gas pressure in the low-pressure chamber 3 is lower than the gas pressure in the working chamber of the cylinder structure 2, because the pressure in the low-pressure chamber 3 is lower than the gas pressure in the working chamber of the cylinder structure 2; the existence of low-pressure chamber 3 for gas in the cylinder working chamber can give flange portion 1 an outside power, makes the compression capacity of cylinder axial both sides terminal surface further reduce, thereby makes pump body roller and cylinder axial under the close clearance fit condition, has eliminated former roller terminal surface and corresponding flange terminal surface unusual wearing and tearing problem, can effectually under the condition that does not reduce compressor performance, improves compressor reliability. The abnormal abrasion between the roller and the flange end face or between the roller and the partition plate 41 caused by uneven or large deformation of the flange end face under various working conditions of the compressor is effectively solved, and the performance and the reliability of the compressor are improved.

The pump body assembly comprises a flange part 1 and a cylinder assembly structure, wherein the flange part 1 comprises an upper flange, a lower flange, a partition plate 41, a cylinder structure 2, an upper flange, the upper flange partition plate 41 and the lower flange which are connected with the cylinder structure 2 through an upper flange screw and a lower flange screw respectively to form a compressor pump body.

The application also discloses embodiments, the cylinder arrangement 2 comprising an inlet port 24; the low pressure chamber 3 communicates with the suction port 24; the suction port 24 introduces uncompressed gas into the working chamber of the cylinder structure 2; at the same time, a part of the uncompressed low-pressure gas enters the low-pressure chamber 3, i.e., the low-pressure chamber 3 is introduced with the low-pressure gas through the cylinder inlet 24.

The application also discloses embodiments, the flange part 1 comprises a flange end part; a groove is formed in the end face of the end part of the flange; the pump body assembly further comprises a partition; the separating part is blocked at the notch of the groove; a low pressure chamber 3 is formed between the partition and the groove.

The present application also discloses embodiments where the partition comprises a baffle 41; the partition plate 41 is provided with a mounting hole; the mounting hole is used for mounting a crankshaft; the partition plate 41 is a flat plate without any other structure except for screw holes, so that after the pump body is locked by the screws, the flange partition plate 41 is uniformly deformed under the pressure action of the flange and the two sides of the cylinder, and the local deformation caused by the structure of the flange partition plate 41 is not large; meanwhile, the axial deformation of the partition plate 41 towards the flange side can be ensured under the condition that the compressor does not suck air (abnormal air suction), and finally, the reliability design requirement is met under the condition that the axial design gap of the pump body is not enlarged or reduced to a certain degree, and the performance is improved.

When the flange part 1 is an upper flange, an upper flange low-pressure cavity 3 is arranged between the upper flange and the upper flange clapboard 41, and low-pressure gas passes through a cylinder air suction channel 21 of the air suction port 24 (the cylinder air suction channel 21 extends in the axial direction); then enters the low-pressure cavity 3 through a flange air suction channel 11, wherein the flange air suction channel 11 comprises an upper flange axial air suction channel and an upper flange radial air suction channel; then the gas enters an axial gas suction channel and a radial gas suction channel of the upper flange in sequence and then enters the low-pressure cavity 3 of the upper flange. Due to the existence of the low-pressure cavity 3, the upper flange partition plate 41 only bears the high-pressure action of the cylinder in the exhaust side compression cavity, the rest positions of the upper flange partition plate 41 are all in a low-pressure environment, and the two sides of the upper flange partition plate 41 are in a low-pressure balance state, so that axial deformation cannot occur under the gas force; meanwhile, the high pressure of the compression cavity at the exhaust side of the cylinder enables the upper flange partition plate 41 to deform in the direction of the upper flange along the axial direction, so that the axial clearance between the cylinder and the roller is increased to a certain extent, and abnormal abrasion caused by the fact that the roller and the end face of the upper flange partition plate 41 cannot be lubricated due to small clearance is avoided; in addition, the upper flange partition plate 41 has no other structure except the screw hole and the sealing piece 43, and the whole structure is symmetrical, so that the upper flange partition plate 41 is uniformly deformed under the pretightening force of the screw, and abnormal abrasion between the roller and the upper flange partition plate 41 due to local deformation is avoided, so that the axial clearance between the cylinder and the roller can be reduced to a certain extent by adopting the upper flange low-pressure cavity 3 structure on the premise of ensuring the reliability of the compressor, and the performance of the compressor is improved.

The present application also discloses embodiments wherein the partition further comprises an axial extension 42; a first end of the axial extension 42 is connected to the partition 41; and the axial extension 42 is an annular structure; the annular structure is disposed circumferentially around the mounting hole.

The present application also discloses embodiments wherein the partition further comprises a seal 43; a seal 43 is provided on the axial extension 42; the seal 43 is an annular structure disposed circumferentially around the mounting hole; the seal 43 is sealingly connected to the bottom of the groove. The partition 41 ensures sealing between the low pressure chamber 3 and the shaft by means of a seal 43. The screw holes at the position of the partition plate 41 and the sealing piece 43 are both of flat plate structures, so that the partition plate 41 is guaranteed to deform uniformly under the pretightening force of the screws. The baffle plate 41 can be ensured to deform little and uniformly and well, the sealing part 43 can solve the problem of sealing deformation of the compressor pump body with the cover plate or the baffle plate 41 sealing part 43, and further the performance and the reliability of the compressor are improved.

The present application also discloses embodiments wherein the axially extending portion 42 is provided with a sealing groove; the sealing member 43 is disposed in the sealing groove;

alternatively, the seal 43 includes a seal ring 431 and a seal cylinder 432; the seal cylinder 432 is provided on the outer peripheral side of the seal ring 431; the inner peripheral side of the seal ring 431 is connected to the second end of the axial extension 42. The sealing of the low-pressure cavity 3 can be ensured, the partition plate 41 is designed with a sealing piece 43, and the sealing piece 43 comprises a sealing cylinder 432; the thickness D1 of the cylinder wall of the sealing cylinder 432 corresponds to an annular plane (the end face of the sealing cylinder 432 is a sealing end face), and in the assembling process, the sealing cylinder 432 and the flange end face form surface sealing.

Referring to fig. 2-3 in combination, in some embodiments, the cartridge 432 has a wall thickness D1; the thickness of the sealing ring 431 is D2; the axial extension 42 is a cylindrical structure; the thickness of the wall of the cylindrical structure is D3; the groove depth of the groove is H1; the maximum distance between the inner end surface of the partition plate 41 and the seal member 43 in the central axis direction of the mounting hole is H2; wherein D1 is more than or equal to 1 mm; and/or D2 is more than or equal to 1; and/or D3 is more than or equal to 1 mm; and/or, H2-H1 are more than 0 and less than or equal to 0.1 mm.

The application also discloses some embodiments, D1 is 1.2-3 mm; and/or D2 is 1-3 mm; and/or D3 is 1-3 mm.

Referring collectively to fig. 4-7, according to an embodiment of the present application, there is provided a pump body assembly including a cylinder structure 2; the cylinder structure 2 includes a valve body passage 23 and a cylinder exhaust passage 22; the cylinder exhaust passage 22, the valve body passage 23 and the working cavity of the cylinder are communicated in sequence; an exhaust valve 51 is arranged in the valve body channel 23; the exhaust valve 51 is movable in the valve body passage 23 to open or close the cylinder exhaust passage 22; the reliability of the exhaust valve 51 can be improved, and the problem of the reliability of the compressor caused by the fact that the valve plate is broken due to the fact that the conventional valve plate impacts the valve seat under a heavy working condition or a high frequency can be solved; further improving compressor reliability.

The application also discloses some embodiments, the first end of the valve body channel 23 is communicated to the working cavity of the cylinder; the cylinder exhaust passage 22 communicates to the side wall of the valve body passage 23; the exhaust valve 51 is movably and hermetically connected with the valve body passage 23.

The present application also discloses embodiments in which the exhaust valve 51 is a valve bead; the valve ball is movably and hermetically connected with the valve body channel 23.

The application also discloses embodiments in which a fixing member 53 is provided in the valve body passage 23; the retainer 53 is located at the second end of the valve body passage 23; the fixing member 53 is connected to the discharge valve 51 by an elastic member 52.

The application also discloses some embodiments, the pump body assembly includes a flange portion 1; a back pressure through hole 13 is arranged on the flange part 1; the backpressure through hole 13 penetrates through the end part of the flange; the back pressure through hole 13 communicates with a second end of the valve body passage 23.

The application also discloses embodiments, wherein the fixing piece 53 is provided with a flow hole; the circulation hole is communicated with the valve body channel 23 and the backpressure through hole 13;

and/or, the fixing member 53 is in interference fit with the valve body passage 23;

and/or, the pump body assembly further comprises a silencer; the backpressure through hole 13 is positioned in the silencer; and may also be located outside the muffler. The fixing member 53 is fixed in the valve body passage 23 by interference or screw threads, and is fixedly connected to the elastic member 52. The elastic part 52 is in a precompression state and is always connected with the exhaust valve 51, the exhaust valve 51 forms line sealing with a taper hole at the end part of the valve body channel 23 under the action of the spring force of the elastic part 52 and the high-pressure gas force entering through the backpressure through hole 13 and the valve body channel 23, so that the sealing effect on a compression cavity of a pump body is achieved, when the pressure in the compression cavity of the cylinder is greater than the spring force, the backpressure gas force and the gravity of the exhaust valve 51, the exhaust valve 51 moves upwards along the exhaust channel 22 of the cylinder, the exhaust valve 51 is opened, the high-pressure gas is discharged into a silencer or a shell through the exhaust channel 22 of the cylinder and the exhaust channel 12 of the upper flange, and the opening and closing effect of the exhaust valve 51 of the cylinder is further achieved.

The application also discloses some embodiments, and the central axis of valve body passageway 23 has the contained angle with cylinder structure 2's the central axis, and valve body passageway 23 is certain angle with the cylinder terminal surface, for guaranteeing a large amount of long-pending oils in the valve body passageway 23, guarantees simultaneously that cylinder discharge valve 51 can form sealedly under the dead weight to pump body compression chamber.

The application also discloses some embodiments, in the direction close to the working cavity of the cylinder structure 2, the valve body channel 23 comprises a first section and a second section which are communicated in sequence; the cross-sectional area of the first section is a fixed value.

The cross section area of the second section is gradually reduced towards the direction close to the working cavity of the cylinder structure 2, so that a conical structure is formed; the clearance volume of the exhaust port can be reduced, the problem of the reliability of the compressor caused by the breakage of the valve plate under the high-frequency and heavy-duty conditions of the conventional valve plate exhaust system is solved, and the performance and the reliability of the compressor are improved. The cylinder exhaust system adopts a spherical cylinder exhaust valve 51 and a cylinder exhaust valve 51 channel to form annular line contact seal close to the inner circle side conical surface of the cylinder, thereby achieving the seal of the pump body compression cavity.

The present application also discloses embodiments in which the cylinder exhaust passage 22 has a cross-sectional diameter D4; the first section has a cross-sectional diameter D5; wherein D5 is more than or equal to D4.

Communicating the flange exhaust communication with the cylinder exhaust passage 22; the partition plate 41 can be ensured to have a flat symmetric structure as a whole, and the problems of oil discharge and noise can be prevented.

According to the embodiment of the application, a compressor is provided, and the compressor comprises a pump body assembly which is the pump body assembly.

The compressor in the present application is a rotary compressor; namely, the lower end face of the upper flange of the pump body is provided with the low pressure cavity 3, namely, a partition plate 41 is arranged between the upper flange and the cylinder structure 2, the low pressure cavity 3 is arranged between the upper flange and the partition plate 41, the low pressure cavity is not limited to the upper flange and can be a corresponding flange partition plate 41 of the lower flange, a double cylinder and a triple cylinder, and the like, and low pressure gas enters the low pressure cavity 3 through the cylinder air suction channel 21, the axial air suction channel of the upper flange and the radial air suction channel of the upper flange. The compressor described herein is not limited to a single cylinder compressor.

According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor.

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 invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (20)

1. A pump body assembly, comprising:

a flange part (1);

a cylinder structure (2);

a low pressure chamber (3); the low-pressure cavity (3) is arranged between the cylinder structure (2) and the flange part (1); the gas pressure in the low-pressure cavity (3) is smaller than the gas pressure in the working cavity of the cylinder structure (2).

2. The pump block assembly according to claim 1, characterized in that the cylinder structure (2) comprises an intake port (24); the low pressure chamber (3) communicates with the suction port (24).

3. The pump body assembly according to claim 1, characterized in that said flange portion (1) comprises a flange end; a groove is formed in the end face of the end part of the flange; the pump body assembly further comprises a partition; the separating part is blocked at the notch of the groove; the low pressure chamber (3) is formed between the partition and the groove.

4. The pump body assembly according to claim 3, wherein the partition comprises a partition (41); the partition plate (41) is provided with a mounting hole; the mounting hole is used for mounting a crankshaft.

5. The pump body assembly according to claim 4, wherein the partition further comprises an axial extension (42); a first end of said axial extension (42) being connected to said partition (41); and the axial extension (42) is of annular configuration; the annular structure is disposed circumferentially around the mounting hole.

6. The pump body assembly according to claim 5, wherein the partition further comprises a seal (43); said seal (43) being disposed on said axial extension (42); the seal (43) is an annular structure disposed circumferentially around the mounting hole; the sealing element (43) is connected with the groove bottom of the groove in a sealing mode.

7. The pump body assembly according to claim 6, characterized in that said axial extension (42) is provided with a sealing groove; the sealing element (43) is arranged in the sealing groove;

alternatively, the seal (43) comprises a sealing ring (431) and a sealing barrel (432); the seal cylinder (432) is provided on the outer peripheral side of the seal ring (431); the inner peripheral side of the seal ring (431) is connected to the second end of the axially extending portion (42).

8. The pump body assembly according to claim 7, wherein the sealing cylinder (432) has a cylinder wall thickness D1; the sealing ring (431) has a thickness D2; the axial extension (42) is of a cylindrical structure; the thickness of the wall of the cylindrical structure is D3; the groove depth of the groove is H1; a maximum distance H2 between the inner end surface of the partition plate (41) and the seal member (43) in the direction of the center axis of the mounting hole; wherein D1 is more than or equal to 1 mm; and/or D2 is more than or equal to 1; and/or D3 is more than or equal to 1 mm; and/or, H2-H1 are more than 0 and less than or equal to 0.1 mm.

9. The pump body assembly of claim 8, wherein D1 is 1.2-3 mm; and/or D2 is 1-3 mm; and/or D3 is 1-3 mm.

10. A pump body assembly, characterized by comprising a cylinder structure (2); the cylinder structure (2) comprises a valve body channel (23) and a cylinder exhaust channel (22); the cylinder exhaust passage (22), the valve body passage (23) and the working cavity of the cylinder are communicated in sequence; an exhaust valve (51) is arranged in the valve body channel (23); the exhaust valve (51) is movable within the valve body passage (23) to open or close the cylinder exhaust passage (22).

11. The pump body assembly according to claim 10, wherein a first end of the valve body passage (23) communicates with a working chamber of the cylinder; the cylinder exhaust passage (22) is communicated to the side wall of the valve body passage (23); the exhaust valve (51) is movably and hermetically connected with the valve body channel (23).

12. The pump block assembly according to claim 10, characterized in that said venting valve (51) is a valve bead; the valve ball is movably connected with the valve body channel (23) in a sealing way.

13. The pump body assembly according to claim 10, wherein a fixing member (53) is provided in the valve body passage (23); the fixing piece (53) is positioned at the second end of the valve body channel (23); the fixing piece (53) is connected with the exhaust valve (51) through an elastic piece (52).

14. The pump body assembly according to claim 13, characterized in that it comprises a flange portion (1); a back pressure through hole (13) is formed in the flange part (1); the backpressure through hole (13) penetrates through the end part of the flange; the back pressure through hole (13) communicates with a second end of the valve body passage (23).

15. The pump body assembly according to claim 14, characterized in that said fixed member (53) is provided with a flow-through hole; the circulation hole communicates the valve body passage (23) with the back pressure through hole (13);

and/or the fixing piece (53) is in interference fit with the valve body channel (23);

and/or, the pump body assembly further comprises a silencer; the backpressure through hole (13) is positioned in the silencer.

16. The pump block assembly according to claim 10, characterized in that the central axis of the valve body passage (23) is at an angle to the central axis of the cylinder structure (2).

17. The pump block assembly according to claim 10, characterized in that said valve body channel (23) comprises, in the direction close to the working chamber of the cylinder structure (2), a first section and a second section communicating in sequence; the cross-sectional area of the first section is a fixed value; and/or the cross-sectional area of the second section is gradually reduced towards the working cavity of the cylinder structure (2).

18. The pump block assembly according to claim 17, wherein the cylinder exhaust passage (22) has a cross-sectional diameter D4; the first section has a cross-sectional diameter of D5; wherein D5 is more than or equal to D4.

19. A compressor comprising a pump body assembly, characterized in that it is a pump body assembly according to any one of claims 1 to 18.

20. An air conditioner comprising a compressor, wherein said compressor is the compressor of claim 19.

Images