CN114087182A

CN114087182A - Pump body structure, compressor and air conditioner

Info

Publication number: CN114087182A
Application number: CN202111494135.4A
Authority: CN
Inventors: 刘达炜; 魏会军; 赵旭敏; 韩鑫; 彭慧明; 李定贤
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-02-25

Abstract

The application provides a pump body structure, compressor and air conditioner. The pump body structure comprises an air cylinder (1), a roller (2), a sliding sheet (3), an upper flange (4) and a lower flange (5), wherein the roller (2) can be rotatably arranged in a working cavity of the air cylinder (1) and can be matched with the sliding sheet (3) to divide the working cavity into an air suction cavity and a compression cavity, the upper flange (4) and the lower flange (5) are positioned at two ends of the air cylinder (1), the pump body structure further comprises a silencing structure, the silencing structure comprises a leading-in hole (6) and a silencing chamber (7), a leading-out port of the leading-in hole (6) is communicated with the silencing chamber (7), and a leading-in port (8) of the leading-in hole (6) is arranged on the end face, facing the roller (2), of the upper flange (4) and/or the lower flange (5) and can be selectively communicated with the compression cavity. According to the pump body structure of this application, can effectively avoid the refrigerant backward flow problem in the amortization structure, improve the efficiency of compressor.

Description

Pump body structure, compressor and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to a pump body structure, a compressor and an air conditioner.

Background

As shown in figure 1, the silencing structure of the prior compressor cylinder is generally arranged at the position of a crescent groove 3 'of the cylinder exhaust and generally comprises a leading-in hole 1' and a silencing chamber 2 ', the gas in the leading-in hole 1' performs reciprocating motion similar to a piston under the action of pressure fluctuation, the gas in a cavity is similar to a spring, partial sound energy is converted into heat energy to be dissipated due to the friction and damping action during the vibration of the gas, the corresponding pressure fluctuation is smoother, and the airflow noise is reduced along with the pressure fluctuation.

However, in this silencing structure, the refrigerant in the introduction hole 1 'and the silencing chamber 2' cannot be discharged out of the cylinder and has a certain angle in each operation period of the compressor, and the silencing structure is communicated with the cylinder suction port, so that the refrigerant in the introduction hole 1 'and the silencing chamber 2' flows back to the suction port, as shown by an arrow in fig. 1, in a backflow direction of the air flow, thereby affecting the operation efficiency of the compressor.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing a pump body structure, compressor and air conditioner, can effectively avoid the refrigerant backward flow problem in the sound-deadening structure, improves the efficiency of compressor.

In order to solve the above problems, the present application provides a pump body structure, which includes a cylinder, a roller, a sliding vane, an upper flange and a lower flange, wherein the roller is rotatably disposed in a working cavity of the cylinder and can be matched with the sliding vane to divide the working cavity into a suction cavity and a compression cavity, the upper flange and the lower flange are disposed at two ends of the cylinder, the pump body structure further includes a silencing structure, the silencing structure includes a leading-in hole and a silencing chamber, a leading-out port of the leading-in hole is communicated with the silencing chamber, and a leading-in port of the leading-in hole is disposed on an end surface of the upper flange and/or the lower flange facing the roller and can be selectively communicated with the compression cavity.

Preferably, the cylinder is provided with an air inlet port, the introduction hole is capable of being disconnected from the compression chamber when the compression chamber is communicated with the air inlet port, and the introduction hole is capable of being communicated with the compression chamber when the compression chamber is not communicated with the air inlet port.

Preferably, a communication state of the introduction port of the introduction hole and the compression chamber is controlled by the roller.

Preferably, in the direction of rotation of the roller, α -10 ° ≦ θ 1 ≦ α +10 °; and the angle alpha is the crank angle of the edge of the air suction port far away from the slide sheet relative to the center line of the slide sheet, and the angle theta 1 is the crank angle of the closest point of the roller and the inner circle of the cylinder relative to the center line of the slide sheet when the leading-in port of the leading-in port is reopened.

Preferably, the introducing port is opened after the closest point of the roller to the inner circle of the cylinder is rotated by the edge of the air suction port on the side far from the slider.

Preferably, when the leading-in port is closed along the rotation direction of the roller, the crank angle of the closest point of the roller and the inner circle of the cylinder relative to the midline of the slide sheet is theta 2, and the theta 2 is more than or equal to 300 degrees.

Preferably, the silencing chamber and the introduction hole are both arranged on the upper flange, the opening of the silencing chamber and the introduction hole of the introduction hole are positioned on the same end face of the upper flange, and the opening of the silencing chamber is sealed by the end face of the cylinder; and/or the silencing chamber and the leading-in hole are both arranged on the lower flange, the opening of the silencing chamber and the leading-in hole of the leading-in hole are positioned on the same end face of the lower flange, and the opening of the silencing chamber is sealed through the end face of the cylinder.

Preferably, the introduction hole and the silencing chamber are arranged in a staggered mode, and the introduction hole is formed in one side, close to the slide sheet, of the silencing chamber.

Preferably, at least one of the introduction hole and the sound-deadening chamber is provided obliquely.

Preferably, the silencing chamber and the leading-in hole are both arranged on the upper flange, the leading-in hole is positioned on the end face, facing the cylinder, of the upper flange, the opening of the silencing chamber is positioned on the end face, facing away from the cylinder, of the upper flange, and the opening of the silencing chamber is sealed through the cover plate; and/or the silencing chamber and the leading-in hole are both arranged on the lower flange, the leading-in hole is positioned on the end face, facing the cylinder, of the lower flange, the opening of the silencing chamber is positioned on the end face, facing away from the cylinder, of the lower flange, and the opening of the silencing chamber is sealed through the cover plate.

Preferably, a cover plate is arranged at one end of the upper flange, which is far away from the cylinder, the leading-in hole is arranged on the upper flange and penetrates through the upper flange, and the silencing chamber is arranged at one end of the cover plate, which faces the upper flange, and is sealed by the upper flange; and/or a cover plate is arranged at one end of the lower flange, which is far away from the cylinder, the leading-in hole is arranged on the lower flange and penetrates through the lower flange, and the silencing chamber is arranged at one end of the cover plate, which faces the lower flange, and is sealed by the lower flange.

Preferably, at least two noise reduction structures are arranged on the upper flange; and/or at least two noise reduction structures are arranged on the lower flange.

Preferably, the cylinder is further provided with an exhaust port, and the exhaust port is arranged on the end face of the cylinder far away from the introduction hole.

According to another aspect of the present application, a pump body structure is provided, which includes at least two cylinders, a roller, a sliding vane, a partition plate, an upper flange and a lower flange, wherein the roller is rotatably disposed in a working chamber of the cylinder and can be matched with the sliding vane to divide the working chamber into a suction chamber and a compression chamber, the pump body structure further includes a silencing structure, the silencing structure includes an introduction hole and a silencing chamber, an introduction port of the introduction hole is communicated with the silencing chamber, and an introduction port of the introduction hole is disposed on an end surface of at least one of the upper flange, the lower flange and the partition plate, the end surface facing the roller, and can be selectively communicated with the compression chamber.

Preferably, the cylinder comprises an upper cylinder and a lower cylinder, the leading-in hole is arranged on the partition plate, the leading-in hole is arranged on the end face of the partition plate facing the upper cylinder, and the silencing chamber is arranged on the end face of the lower cylinder facing the partition plate; and/or the leading-in holes are arranged on the partition plate, the leading-in holes are arranged on the end face, facing the lower cylinder, of the partition plate, and the silencing chambers are arranged on the end face, facing the partition plate, of the upper cylinder.

Preferably, the cylinder comprises an upper cylinder and a lower cylinder, the leading-in hole is arranged on the partition plate, the leading-in hole is arranged on the end face of the partition plate facing the upper cylinder, the silencing chamber is arranged on the partition plate, the opening of the silencing chamber and the leading-in hole are arranged on the same end face, and the silencing chamber is sealed through the end face of the upper cylinder; and/or the leading-in hole is arranged on the partition plate, the leading-in hole is arranged on the end face of the partition plate facing the lower cylinder, the silencing chamber is arranged on the partition plate, the opening of the silencing chamber and the leading-in hole are arranged on the same end face, and the silencing chamber is sealed through the end face of the lower cylinder.

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

According to another aspect of the present application, there is provided an air conditioner, comprising a pump body structure as described above.

The application provides a pump body structure, including cylinder, roller, gleitbretter, upper flange and lower flange, the roller can set up in the working chamber of cylinder with rotating to can be separated the working chamber for suction chamber and compression chamber with the gleitbretter cooperation, upper flange and lower flange are located the both ends of cylinder, pump body structure still includes amortization structure, amortization structure includes inlet hole and amortization room, the leading-out mouth and the amortization room intercommunication of inlet hole, the introducing port setting of inlet hole is on the terminal surface of upper flange and/or lower flange orientation roller, and can selectively communicate with compression chamber. The pump body structure of this application embodiment can remain the noise cancelling effect of amortization structure, can also make the remaining high pressure refrigerant of amortization structure not communicate with the induction port, does not influence and breathes in, just can open the amortization structure after breathing in moreover and closing, can effectively utilize the high pressure of remaining refrigerant, avoids the refrigerant backward flow problem in the amortization structure, improves the efficiency of compressor.

Drawings

Fig. 1 is a schematic structural view of a pump body structure of the related art;

FIG. 2 is a schematic structural diagram of a pump body structure according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a pump body structure according to an embodiment of the present invention, with an introduction port closed;

fig. 4 is a schematic structural view of a pump body structure according to an embodiment of the present application, in which an introduction port is closed;

FIG. 5 is a schematic cross-sectional view of the pump body structure according to the embodiment of the present application with the introduction port opened;

fig. 6 is a schematic structural view of a pump body structure according to an embodiment of the present application, in which an introduction port is in an open state;

FIG. 7 is a schematic structural diagram of a pump body structure according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a pump body structure according to an embodiment of the present application;

FIG. 9 is a cross-sectional structural view of a pump body structure according to an embodiment of the present application;

FIG. 10 is a cross-sectional structural view of a pump body structure according to an embodiment of the present application;

fig. 11 is a cross-sectional structural schematic view of a pump body structure according to an embodiment of the present application.

The reference numerals are represented as:

1. a cylinder; 2. a roller; 3. sliding blades; 4. an upper flange; 5. a lower flange; 6. an introduction hole; 7. a sound deadening chamber; 8. an inlet port; 9. an air suction port; 10. an exhaust port; 11. a partition plate; 12. an upper cylinder; 13. a lower cylinder; 14. and (7) a cover plate.

Detailed Description

Referring to fig. 2 to 9 in combination, according to the embodiment of the present application, the pump body structure includes a cylinder 1, a roller 2, a vane 3, an upper flange 4 and a lower flange 5, the roller 2 is rotatably disposed in a working chamber of the cylinder 1 and is capable of cooperating with the vane 3 to divide the working chamber into a suction chamber and a compression chamber, the upper flange 4 and the lower flange 5 are disposed at both ends of the cylinder 1, the pump body structure further includes a silencing structure, the silencing structure includes an introduction hole 6 and a silencing chamber 7, an outlet of the introduction hole 6 is communicated with the silencing chamber 7, and an introduction hole 8 of the introduction hole 6 is disposed on an end surface of the upper flange 4 and/or the lower flange 5 facing the roller 2 and is capable of selectively communicating with the compression chamber.

The pump body structure of this application embodiment can remain the noise cancelling effect of amortization structure, can also make the remaining high pressure refrigerant of amortization structure not communicate with the induction port, does not influence and breathes in, just can open the amortization structure after breathing in moreover and closing, can effectively utilize the high pressure of remaining refrigerant, avoids the refrigerant backward flow problem in the amortization structure, improves the efficiency of compressor.

The gas in the leading-in hole 6 makes reciprocating motion similar to a piston under the action of pressure fluctuation, the gas in the cavity is similar to a spring, and due to the friction and damping action during the vibration of the gas, part of sound energy is converted into heat energy to be dissipated, the corresponding pressure fluctuation becomes smoother, and the airflow noise is reduced.

In the prior art, a certain crankshaft rotation angle range exists between the inlet 8 and the air suction port 9 in each working cycle of the compressor, the inlet 8 is communicated with the air suction port 9, and at the moment, the refrigerant in the inlet 6 and the silencing chamber 7 flows back to the air suction port 9, so that the energy efficiency of the compressor is influenced; by adopting the pump body structure of the embodiment of the present application, the introduction port 8 can be closed in a part of or the whole of these angular ranges, which can reduce or avoid the refrigerant in the introduction port 6 and the muffling chamber 7 from flowing back to the suction port, thereby reducing the loss of the compressor energy efficiency.

In one embodiment, the cylinder 1 is provided with an air inlet 9, the introduction hole 6 can be disconnected from the compression chamber when the compression chamber is communicated with the air inlet 9, and the introduction hole 6 can be communicated with the compression chamber when the compression chamber is not communicated with the air inlet 9.

In this embodiment, when the compression chamber communicates with the suction port 9, the introduction hole 6 is not communicated with the compression chamber, and when the compression chamber does not communicate with the suction port 9, the introduction hole 6 is communicated with the compression chamber, so that the introduction hole 6 can be always prevented from being communicated with the suction port 9, the problem that a high-pressure refrigerant in the silencing structure is communicated with the suction port 9 through the compression chamber is effectively solved, waste of compression energy is avoided, and the working efficiency of the compressor is improved.

In one embodiment, the communication state of the introduction port 8 of the introduction hole 6 with the compression chamber is controlled by the roller 2.

In this embodiment, in each working cycle of the compressor, there are certain angular ranges such that the introduction port 8 may be closed by the roller 2 and cannot communicate with the compression chamber, and in certain angular ranges, the roller 2 may let the introduction port 8 open such that the introduction port 8 communicates with the compression chamber. When the introducing port 8 is closed by the roller 2, the silencing structure has no silencing effect and does not bring adverse effect; when the introducing port 8 is not closed by the roller 2, the silencing structure normally silences, and the high-pressure refrigerant is prevented from flowing back to the air suction port 9 on the basis of ensuring the silencing effect.

In the prior art, the leading-in hole 6 and the silencing chamber 7 are always communicated with the working cavity of the cylinder, and when the exhaust is close to the end, the exhaust speed of the compressor is low, the generated noise is low, and the silencing effect of the silencing chamber is not needed. The existing silencing structure has silencing frequency mainly used for eliminating noise in a stage with large exhaust volume in the front of an exhaust process, and generally has no silencing effect or even bad effect because of the problems of non-corresponding frequency and the like in an exhaust finishing stage.

Therefore, in the present invention, the angle control of the opening or closing of the inlet 8 by the roller 2 is also designed based on the above analysis, and the operation energy efficiency of the compressor is improved while the noise reduction effect of the noise reduction structure is ensured.

In one embodiment, in the direction of rotation of the roller 2, α -10 ° ≦ θ 1 ≦ α +10 °; where α is a crank angle of an edge of the suction port 9 on the side away from the vane with respect to the center line of the vane, and θ 1 is a crank angle of the closest point of the roller 2 to the inner circle of the cylinder 1 with respect to the center line of the vane when the introduction port 8 of the introduction port 6 is reopened. The vane centerline refers to a bisector of the vane 3 in a section perpendicular to the center axis of the cylinder. In general, the extension of the slide centerline is through the crankshaft center, so the angular position of the structural point can be defined by the crank angle of the other structural point relative to the slide centerline.

In order to make the design area of the inlet 8 as large as possible, it is necessary to open the inlet 8 as quickly as possible without affecting the intake air recirculation when designing the inlet 8. However, the opening is too early, which causes the introduction port 8 to communicate with the suction port 9; therefore, the inlet 8 is generally designed to be opened when the roller 2 closes the inlet 9; however, due to the problem of machining error of parts, etc., α -10 ° ≦ θ 1 ≦ α +10 ° is generally designed, so that the position at which the introduction port 8 is opened or closed can be controlled more accurately in consideration of the influence of the error.

In one embodiment, the introduction port 8 is opened after the closest point of the roller 2 to the inner circle of the cylinder 1 is rotated past the edge of the suction port 9 on the side away from the slider. In this embodiment, after the closest point of the roller 2 and the inner circle of the cylinder 1 rotates past the edge of the air suction port 9 far away from the sliding vane side, at this time, the air suction port 9 is disconnected and communicated with the compression cavity through the matching of the sliding vane 3 and the roller 2 and the cylinder 1, even if the introducing port 8 is opened, the high-pressure refrigerant in the silencing structure only flows back into the compression cavity and cannot flow back to the air suction port 9 through the compression cavity, and the problem of reduction of the compression efficiency of the compressor caused by ineffective release of the high-pressure refrigerant is avoided, so that the working energy efficiency of the compressor can be improved.

As a preferred embodiment, when the position of the inlet 8 is designed, it can be designed that when the air inlet 9 is disconnected from the compression chamber, the inlet 8 is just opened, so that the silencing structure can play a silencing role in the whole compression process, and the silencing effect of the silencing structure is ensured.

In one embodiment, when the leading-in port 8 is closed along the rotation direction of the roller 2, the crank angle of the closest point of the roller 2 and the inner circle of the cylinder 1 relative to the slide midline is theta 2, and the theta 2 is more than or equal to 300 degrees. After the leading-in port 8 is closed, the silencing structure has no silencing effect and no adverse effect; because the displacement of the cylinder is still large at about 300 degrees under the existing compressor and most working conditions, the closing angle of the leading-in opening is more than or equal to 300 degrees, so that the silencing structure can play an effective silencing effect under the condition of ensuring large displacement of the cylinder.

In one embodiment, the muffling chamber 7 and the introduction hole 6 are both provided on the upper flange 4, the opening of the muffling chamber 7 and the introduction hole 8 of the introduction hole 6 are located on the same end face of the upper flange 4, and the opening of the muffling chamber 7 is sealed by the end face of the cylinder 1.

In one embodiment, the muffling chamber 7 and the introduction hole 6 are both provided on the lower flange 5, the opening of the muffling chamber 7 and the introduction hole 8 of the introduction hole 6 are located on the same end face of the lower flange 5, and the opening of the muffling chamber 7 is sealed by the end face of the cylinder 1.

In this embodiment, the introduction hole 6 and the muffling chamber 7 are both disposed on the same component, and can be directly sealed by the cylinder 1, so that an additional sealing member is not required, the structure is simpler, and the material and cost can be saved.

In one embodiment, the introduction hole 6 and the silencing chamber 7 are arranged in a staggered manner, and the introduction hole 6 is arranged on one side of the silencing chamber 7 close to the slide 3. In the present embodiment, the staggered arrangement of the introduction hole 6 and the muffling chamber 7 means that, in a cross section perpendicular to the central axis of the cylinder 1, a line connecting the center of the muffling chamber 7 and the rotation center of the crankshaft and a line connecting the center of the introduction hole 6 and the rotation center of the crankshaft are staggered by a certain angle, that is, they do not coincide.

The purpose of this design is that, in order to make the closing angle of the introduction port 8 as large as possible more than 300 °, the introduction port 8 needs to be provided as close as possible to the slider 3; the muffling chamber 7 is generally larger than the introduction hole 6 and needs to be sealed by the cylinder 1, and therefore needs to be disposed slightly away from the slide groove, and in order to satisfy both the design requirements, the introduction hole 6 needs to be disposed close to the slide 3, and the muffling chamber 7 is disposed away from the slide 3 with respect to the introduction hole 6, and is disposed in a staggered manner. After the leading-in hole 6 and the silencing chamber 7 are arranged in a staggered mode, the leading-in hole 8 is ensured to be close to the sliding sheet 3 as much as possible, and meanwhile the sealing effect of the silencing chamber 7 is ensured.

In one embodiment, at least one of the introduction hole 6 and the sound-deadening chamber 7 is disposed obliquely. When the inlet 8 of the inlet hole 6 and the opening of the muffling chamber 7 are arranged on the same end face, since the inlet 8 and the opening of the muffling chamber 7 cannot be directly communicated at the end face, and the muffling chamber 7 can only be communicated with the compression cavity through the inlet hole 6 and cannot be directly communicated with the compression cavity of the cylinder 1, the inlet 8 needs to be communicated with the muffling chamber 7 through the outlet inside the upper flange 4 and/or the lower flange 5, and if the inlet 8 and the muffler chamber are vertically arranged, the communication between the two cannot be achieved. At least one of the leading-in hole 6 and the silencing chamber 7 is obliquely arranged, so that the leading-in hole 6 is communicated with the silencing chamber 7, the structure is simple, the realization is convenient, and the internal space of the pump body structure can be more reasonably utilized.

In one embodiment, the muffling chamber 7 and the introduction hole 6 are both provided on the upper flange 4, the introduction hole 8 of the introduction hole 6 is located on the end surface of the upper flange 4 facing the cylinder 1, the opening of the muffling chamber 7 is located on the end surface of the upper flange 4 facing away from the cylinder 1, and the opening of the muffling chamber 7 is sealed by a cover plate 14.

The silencing chamber 7 and the leading-in hole 6 are both arranged on the lower flange 5, the leading-in hole 8 of the leading-in hole 6 is positioned on the end face, facing the cylinder 1, of the lower flange 5, the opening of the silencing chamber 7 is positioned on the end face, facing away from the cylinder 1, of the lower flange 5, and the opening of the silencing chamber 7 is sealed through a cover plate 14.

In the present exemplary embodiment, the sound-damping chamber 7 opens at the end face of the upper flange 4 or the lower flange 5 facing the cover plate 14, and the cover plate 14 only acts as a seal.

In one embodiment, the end of the upper flange 4 remote from the cylinder 1 is provided with a cover plate 14, the introduction hole 6 is provided on the upper flange 4 and penetrates the upper flange 4, and the muffling chamber 7 is provided at the end of the cover plate 14 facing the upper flange 4 and is sealed by the upper flange 4.

The lower flange 5 is provided with a cover plate 14 at one end far away from the cylinder 1, the lead-in hole 6 is arranged on the lower flange 5 and penetrates through the lower flange 5, and the silencing chamber 7 is arranged at one end of the cover plate 14 facing the lower flange 5 and is sealed by the lower flange 5.

In this embodiment, the introduction hole 6 and the muffling chamber 7 are respectively provided in different parts, so that the processing difficulty of the muffling structure can be reduced, and the sealing difficulty of the muffling chamber 7 can be effectively reduced.

In one embodiment, at least two sound attenuating structures are provided on the upper flange 4; and/or at least two noise reduction structures are arranged on the lower flange 5.

Set up a plurality of amortization structures, can strengthen the amortization, in addition, set up the amortization structure of different parameter sizes, can eliminate the noise of different frequencies, the noise cancelling effect of compressor further promotes to noise cancelling effect to different operating modes and different frequencies has the universality more.

In one embodiment, the cylinder 1 is further provided with an exhaust port 10, and the exhaust port 10 is provided on an end surface of the cylinder 1 away from the introduction hole 6. Since the exhaust port 10 and the introduction port 6 need to be disposed close to the sliding vane 3, if both are disposed at the same end of the cylinder 1 and are disposed close to the sliding vane 3, it is possible to cause the introduction port 6 to communicate with the exhaust port 10, and further communicate with the suction port 9 through the exhaust port 10 and the compression chamber. In this case, either the introduction hole 6 and the exhaust port 10 are located at different ends, or the introduction port 8 of the introduction hole 6 is spaced apart from the side wall of the working chamber of the cylinder 1 by a predetermined interval, thereby avoiding the risk of the introduction hole 6 communicating with the exhaust port 10.

Referring to fig. 10 and 11 in combination, according to the embodiment of the present application, the pump body structure includes at least two cylinders, a roller 2, a vane 3, a partition plate 11, an upper flange 4 and a lower flange 5, the partition plate 11 is located between the two cylinders, the roller 2 is rotatably disposed in a working chamber of the cylinder and can cooperate with the vane 3 to divide the working chamber into a suction chamber and a compression chamber, the pump body structure further includes a silencing structure, the silencing structure includes an introduction hole 6 and a silencing chamber 7, an outlet of the introduction hole 6 is communicated with the silencing chamber 7, and an introduction hole 8 of the introduction hole 6 is disposed on an end surface of at least one of the upper flange 4, the lower flange 5 and the partition plate 11 facing the roller 2 and can be selectively communicated with the compression chamber.

In this embodiment, the compressor is a multi-cylinder compressor, such as a two-cylinder compressor. The arrangement structure of the sound deadening structure of the present embodiment is substantially the same as that of the above-described embodiment, except that, in the present embodiment, since the number of cylinders is larger, it is necessary to provide the partition plate 11 between the adjacent cylinders, and therefore, the sound deadening structure may also be provided on the partition plate 11. Because the partition 11 is located between two adjacent cylinders, when the silencing structure is used for silencing one cylinder, the silencing chamber 7 can be arranged on the other cylinder, and the arrangement of the silencing structure is carried out by fully utilizing the structures of the cylinders and the partition 11.

In one embodiment, the cylinder is provided with an air inlet 9, the introduction hole 6 can be disconnected from the compression chamber when the compression chamber is communicated with the air inlet 9, and the introduction hole 6 can be communicated with the compression chamber when the compression chamber is not communicated with the air inlet 9.

In one embodiment, the cylinder includes an upper cylinder 12 and a lower cylinder 13, the introduction hole 6 is provided on the partition plate 11, the introduction port 8 of the introduction hole 6 is provided on an end surface of the partition plate 11 facing the upper cylinder 12, and the muffling chamber 7 is provided on an end surface of the lower cylinder 13 facing the partition plate 11.

The introduction hole 6 is provided in the partition plate 11, the introduction port 8 of the introduction hole 6 is provided in an end surface of the partition plate 11 facing the lower cylinder 13, and the sound-deadening chamber 7 is provided in an end surface of the upper cylinder 12 facing the partition plate 11.

In one embodiment, the cylinder includes an upper cylinder 12 and a lower cylinder 13, the introduction hole 6 is provided on the partition plate 11, the introduction port 8 of the introduction hole 6 is provided on an end surface of the partition plate 11 facing the upper cylinder 12, the muffling chamber 7 is provided on the partition plate 11, an opening of the muffling chamber 7 is provided on the same end surface as the introduction port 8, and the muffling chamber 7 is sealed by an end surface of the upper cylinder 12.

The introduction hole 6 is provided in the partition plate 11, the introduction port 8 of the introduction hole 6 is provided in an end surface of the partition plate 11 facing the lower cylinder 13, the muffling chamber 7 is provided in the partition plate 11, an opening of the muffling chamber 7 is provided in the same end surface as the introduction port 8, and the muffling chamber 7 is sealed by the end surface of the lower cylinder 13.

According to an embodiment of the present application, a compressor includes a pump body structure, which is the above-mentioned pump body structure.

According to the embodiment of the application, the air conditioner comprises the pump body structure, and the pump body structure is the pump body 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 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

1. A pump body structure is characterized by comprising a cylinder (1), a roller (2), a sliding vane (3), an upper flange (4) and a lower flange (5), the roller (2) is rotatably arranged in a working cavity of the cylinder (1), and can be matched with the sliding sheet (3) to divide the working cavity into an air suction cavity and a compression cavity, the upper flange (4) and the lower flange (5) are positioned at the two ends of the cylinder (1), the pump body structure also comprises a silencing structure, the silencing structure comprises an introduction hole (6) and a silencing chamber (7), the outlet of the introduction hole (6) is communicated with the silencing chamber (7), and the introduction port (8) of the introduction hole (6) is provided on the end surface of the upper flange (4) and/or the lower flange (5) facing the roller (2) and can be selectively communicated with the compression chamber.

2. The pump structure according to claim 1, wherein a suction port (9) is provided in the cylinder (1), and the introduction hole (6) can be disconnected from the compression chamber when the compression chamber is communicated with the suction port (9), and the introduction hole (6) can be communicated with the compression chamber when the compression chamber is not communicated with the suction port (9).

3. The pump body structure according to claim 1, wherein a communication state of an introduction port (8) of the introduction hole (6) with the compression chamber is controlled by the roller (2).

4. The pump body structure according to claim 1, characterized in that in the direction of rotation of the rollers (2), a-10 ° ≦ θ 1 ≦ a +10 °; wherein alpha is the crank angle of the edge of the air suction port (9) far away from the slide sheet relative to the center line of the slide sheet, and theta 1 is the crank angle of the closest point of the roller (2) and the inner circle of the cylinder (1) relative to the center line of the slide sheet when the leading-in port (8) of the leading-in port (6) is reopened.

5. The pump body structure according to claim 4, wherein the introduction port (8) is opened after a closest point of the roller (2) to an inner circle of the cylinder (1) is rotated past an edge of the suction port (9) on a side away from the slider.

6. The pump body structure according to claim 1, wherein, when the introduction port (8) is closed along the rotation direction of the roller (2), the crank angle of the closest point of the roller (2) to the inner circle of the cylinder (1) with respect to the vane centerline is θ 2, and θ 2 is equal to or greater than 300 °.

7. The pump body structure according to claim 1, wherein the muffling chamber (7) and the introduction hole (6) are both provided on the upper flange (4), an opening of the muffling chamber (7) and an introduction port (8) of the introduction hole (6) are located on the same end face of the upper flange (4), and the opening of the muffling chamber (7) is sealed by an end face of the cylinder (1); and/or the silencing chamber (7) and the introduction hole (6) are arranged on the lower flange (5), the opening of the silencing chamber (7) and the introduction hole (8) of the introduction hole (6) are positioned on the same end face of the lower flange (5), and the opening of the silencing chamber (7) is sealed through the end face of the cylinder (1).

8. Pump body structure according to claim 7, characterized in that said introduction hole (6) and said muffling chamber (7) are offset, said introduction hole (6) being provided on the side of said muffling chamber (7) close to the slide (3).

9. The pump body structure according to claim 7, wherein at least one of the introduction hole (6) and the muffling chamber (7) is obliquely arranged.

10. The pump body structure according to claim 1, characterized in that the muffling chamber (7) and the introduction hole (6) are both provided on the upper flange (4), an introduction port (8) of the introduction hole (6) is located on an end surface of the upper flange (4) facing the cylinder (1), an opening of the muffling chamber (7) is located on an end surface of the upper flange (4) facing away from the cylinder (1), and the opening of the muffling chamber (7) is sealed by a cover plate (14); and/or the silencing chamber (7) and the introduction hole (6) are arranged on the lower flange (5), the introduction hole (8) of the introduction hole (6) is positioned on the end face, facing the cylinder (1), of the lower flange (5), the opening of the silencing chamber (7) is positioned on the end face, facing away from the cylinder (1), of the lower flange (5), and the opening of the silencing chamber (7) is sealed through a cover plate (14).

11. The pump body structure according to claim 1, characterized in that the end of the upper flange (4) remote from the cylinder (1) is provided with a cover plate (14), the introduction hole (6) is provided on the upper flange (4) and penetrates the upper flange (4), and the muffling chamber (7) is provided at the end of the cover plate (14) facing the upper flange (4) and is sealed by the upper flange (4); and/or a cover plate (14) is arranged at one end, away from the cylinder (1), of the lower flange (5), the lead-in hole (6) is arranged on the lower flange (5) and penetrates through the lower flange (5), and the silencing chamber (7) is arranged at one end, facing the lower flange (5), of the cover plate (14) and is sealed through the lower flange (5).

12. The pump body structure according to claim 1, characterized in that at least two noise dampening structures are provided on the upper flange (4); and/or at least two noise reduction structures are arranged on the lower flange (5).

13. The pump body structure according to claim 1, characterized in that an exhaust port (10) is further provided on the cylinder (1), the exhaust port (10) being provided on an end face of the cylinder (1) remote from the introduction hole (6).

14. A pump body structure is characterized by comprising at least two cylinders, a roller (2), a sliding sheet (3), a partition plate (11), an upper flange (4) and a lower flange (5), wherein the partition plate (11) is positioned between the two cylinders, the roller (2) is rotatably arranged in a working cavity of the cylinder and can be matched with the sliding sheet (3) to divide the working cavity into a suction cavity and a compression cavity, the pump body structure further comprises a silencing structure, the silencing structure comprises an introduction hole (6) and a silencing chamber (7), a guide outlet of the introduction hole (6) is communicated with the silencing chamber (7), a guide inlet (8) of the introduction hole (6) is arranged on the end face, facing the roller (2), of at least one of the upper flange (4), the lower flange (5) and the partition plate (11), and can selectively communicate with the compression chamber.

15. The pump structure according to claim 14, wherein an intake port (9) is provided in the cylinder, the introduction hole (6) can be disconnected from the compression chamber when the compression chamber is communicated with the intake port (9), and the introduction hole (6) can be communicated with the compression chamber when the compression chamber is not communicated with the intake port (9).

16. The pump body structure according to claim 14, wherein the cylinder includes an upper cylinder (12) and a lower cylinder (13), the introduction hole (6) is provided on the partition plate (11), an introduction port (8) of the introduction hole (6) is provided on an end surface of the partition plate (11) facing the upper cylinder (12), and the muffling chamber (7) is provided on an end surface of the lower cylinder (13) facing the partition plate (11); and/or the leading-in hole (6) is arranged on the partition plate (11), the leading-in hole (8) of the leading-in hole (6) is arranged on the end face, facing the lower cylinder (13), of the partition plate (11), and the silencing chamber (7) is arranged on the end face, facing the partition plate (11), of the upper cylinder (12).

17. The pump body structure according to claim 14, characterized in that the cylinder includes an upper cylinder (12) and a lower cylinder (13), the introduction hole (6) is provided on the partition plate (11), an introduction port (8) of the introduction hole (6) is provided on an end surface of the partition plate (11) facing the upper cylinder (12), the muffling chamber (7) is provided on the partition plate (11), an opening of the muffling chamber (7) is provided on the same end surface as the introduction port (8), and the muffling chamber (7) is sealed by the end surface of the upper cylinder (12); and/or the leading-in hole (6) is arranged on the partition plate (11), the leading-in hole (8) of the leading-in hole (6) is arranged on the end surface of the partition plate (11) facing the lower cylinder (13), the silencing chamber (7) is arranged on the partition plate (11), the opening of the silencing chamber (7) and the leading-in hole (8) are arranged on the same end surface, and the silencing chamber (7) is sealed through the end surface of the lower cylinder (13).

18. A compressor comprising a pump body structure, characterized in that it is a pump body structure according to any one of claims 1 to 17.

19. An air conditioner comprising a pump body structure, wherein the pump body structure is as claimed in any one of claims 1 to 17.