Oil-gas separator, scroll compressor and air conditioner

Abstract

The present disclosure provides an oil-gas separator, a compressor and an air conditioner. The compressor includes a stator exhaust port, and the oil-gas separator includes a cover body. An air inlet cavity is provided in the cover body, and the air inlet cavity is connected to the stator exhaust port. At least one oil-gas separation channel is also provided in the cover body. One end of each oil separation channel in the oil-gas separation channel is connected to the air inlet cavity, and the other end is connected to the outside of the cover body. At least one oil return channel is also provided in the cover body, and the oil return channel is constructed to discharge the lubricating oil in the oil-gas separation channel and / or the air inlet cavity. The oil-gas separator of the present disclosure is used for oil-gas separation of a scroll compressor. A plurality of oil-gas separation channels and oil return channels are provided in the cover body. The oil-gas separation channel has an oil-gas separation function, which reduces the amount of lubricating oil discharged, improves the reliability of the compressor, enhances the heat exchange performance of the compressor and the energy efficiency of the whole machine, reduces exhaust noise, and reduces the temperature of high-temperature refrigerant gas.

Description

Technical Field

[0001] The present invention belongs to the technical field of scroll compressors, and in particular relates to an oil-gas separator, a scroll compressor and an air conditioner. Background Art

[0002] New energy vehicle air conditioners usually use aluminum scroll compressors, which are favored for their high volumetric efficiency, high energy efficiency ratio, light weight, low vibration, and high speed. When the scroll compressor is running, the high-temperature and high-pressure refrigerant gas flowing through it will drive the lubricating oil in the compressor to form an oil-gas mixture during the flow process. The oil-gas mixture is discharged from the compressor along with the compressor exhaust, reducing the lubricating oil inside the compressor, resulting in poor compressor reliability, increased noise, reduced compressor heat exchange performance, and reduced overall machine energy efficiency. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is that the lubricating oil in the scroll compressor is discharged with the exhaust gas, so that the internal oil amount is reduced, which affects the reliability, noise, heat exchange performance and energy efficiency of the compressor, thereby providing an oil-gas separator, a scroll compressor and an air conditioner.

[0004] In order to solve the above problems, the present disclosure provides an oil-gas separator for oil and gas separation of a scroll compressor, the compressor including a stator plate exhaust port, the oil-gas separator including a cover body, an air inlet cavity provided in the cover body, the air inlet cavity being connected to the stator plate exhaust port, at least one oil-gas separation channel being provided in the cover body, one end of each of the at least one oil-gas separation channel being connected to the air inlet cavity, and the other end being connected to the outside of the cover body, at least one oil return channel being provided in the cover body, the at least one oil return channel being constructed to discharge lubricating oil in the oil-gas separation channel and / or the air inlet cavity.

[0005] In some embodiments, the cover body includes a side wall and an end plate, the side wall is connected to the edge of the end plate, the end plate and the side wall form an accommodating cavity, the air inlet cavity, the at least one oil-gas separation channel, and the at least one oil return channel are all arranged in the accommodating cavity; a separator exhaust hole is provided on the side wall corresponding to the oil-gas separation channel; and an oil return hole is provided on the side wall corresponding to the oil return channel.

[0006] In some embodiments, the air inlet cavity is surrounded by a first baffle, the air inlet cavity is open toward one side of the stator disk exhaust port, the position of the air inlet cavity in the cover body corresponds to the stator disk exhaust port, the first baffle is in sealing contact with the structure around the stator disk exhaust port, and the first baffle is constructed to enable the gas exhausted from the stator disk exhaust port to directly enter the air inlet cavity.

[0007] In some embodiments, the cover body is a circular cover body, the air inlet cavity is arranged at the center of the cover body, and the at least one oil-gas separation channel is distributed at intervals along the circumference of the cover body.

[0008] In some embodiments, at least one rotating oil baffle is provided in the oil-gas separation channel. The at least one rotating oil baffle is rotatable and installed in the oil-gas separation channel at intervals along the airflow direction.

[0009] In some embodiments, the rotating oil baffle plate includes a rotating shaft portion, on which at least one rotating portion can be rotatably disposed, and a baffle portion is provided in at least one radial direction of the rotating portion, and the baffle portion can rotate around the rotating shaft portion along with the rotating portion.

[0010] In some embodiments, the rotating portion is provided with a first baffle portion on one side along any diameter, and a second baffle portion on the other side, and the first baffle portion and the second baffle portion have different areas.

[0011] In some embodiments, a labyrinth structure is provided in the oil-gas separation channel, and the labyrinth structure includes at least two blades arranged at intervals.

[0012] In some embodiments, the oil-gas separation channel is surrounded by two second partitions, and the two second partitions are arranged in parallel; and / or, the oil return channel is surrounded by two third partitions, and the two third partitions are arranged in parallel.

[0013] In some embodiments, the oil-gas separation channel includes a first oil-gas separation channel, a second oil-gas separation channel, and a third oil-gas separation channel. The first oil-gas separation channel is arranged in the direction opposite to gravity of the air inlet cavity, and the second oil-gas separation channel and the third oil-gas separation channel are respectively arranged in two horizontal directions of the air inlet cavity.

[0014] In some embodiments, the oil return channel includes a first oil return channel, a second oil return channel, and a third oil return channel. The oil return hole is arranged at the bottom of the cover body along the gravity direction. The second oil return channel is connected between the air inlet chamber and the oil return hole. The first oil return channel is connected between the first oil-gas separation channel and the oil return hole. The third oil return channel is connected between the third oil-gas separation channel and the oil return hole.

[0015] In some embodiments, an oil collecting portion recessed along the direction of gravity is provided at the connection between the first oil-gas separation channel and the first oil return channel; and / or an oil collecting portion recessed along the direction of gravity is provided at the connection between the third oil-gas separation channel and the third oil return channel.

[0016] A scroll compressor includes the above-mentioned oil-gas separator, and also includes a front cover and a static scroll plate. The static disk exhaust port is arranged on the static scroll plate, and the front cover is fixed on the static scroll plate to wrap the oil-gas separator between the static scroll plate and the front cover.

[0017] The purpose of the present disclosure and the solution of its technical problems can also be further achieved by adopting the following technical measures.

[0018] In some embodiments, a front cover buffer chamber and a front cover exhaust channel are provided in the front cover, and the gas exhausted by the oil-gas separator can enter the front cover buffer chamber. The front cover buffer chamber and the front cover exhaust channel are connected through the front cover air inlet channel, and a cyclone oil separator is provided in the front cover exhaust channel.

[0019] In some embodiments, an oil storage chamber is further provided in the front cover exhaust passage, and the oil storage chamber is used to store the lubricating oil separated by the cyclone oil separator.

[0020] In some embodiments, a total oil return channel is also included. An oil pool is provided in the scroll compressor, and the total oil return channel connects the oil return hole with the oil pool; when an oil storage chamber is included, the total oil return channel also connects the oil storage chamber with the oil pool.

[0021] An air conditioner adopts the oil-gas separator or the scroll compressor.

[0022] The oil-gas separator, scroll compressor and air conditioner provided by the present disclosure have at least the following beneficial effects:

[0023] The oil-gas separator disclosed in the present invention is used for oil-gas separation of a scroll compressor. A plurality of oil-gas separation channels and oil return channels are arranged in the cover body. The oil-gas separation channel has an oil-gas separation function. When the compressor is running, the gas is discharged from the exhaust port of the static disk and first enters the air inlet cavity, where it stays for a short time, thereby suppressing the exhaust noise and diverting the gas. When the oil-gas mixture flows through the oil-gas separation channel, the lubricating oil is separated and flows into the oil return channel, and the remaining gas is discharged from the cover body. The cyclone oil separator of the front cover can also be used for secondary oil-gas separation, thereby reducing the amount of lubricating oil discharged, improving the reliability of the compressor, enhancing the heat exchange performance of the compressor and the energy efficiency of the whole machine, reducing the exhaust noise, and reducing the temperature of the high-temperature refrigerant gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an oil-gas separator according to an embodiment of the present disclosure;

[0025] Figure 2 It is a partial structural schematic diagram of an oil-gas separator and a scroll compressor according to an embodiment of the present disclosure;

[0026] Figure 3It is a structural schematic diagram of a rotating oil baffle according to an embodiment of the present disclosure;

[0027] Figure 4 It is a structural schematic diagram of an oil-gas separator according to another embodiment of the present disclosure;

[0028] Figure 5 It is a schematic structural diagram of the front cover of an embodiment of the present disclosure.

[0029] The reference numerals are as follows:

[0030] 1. Stator plate exhaust port; 2. Cover body; 3. Air inlet cavity; 4. First oil-gas separation channel; 5. Second oil-gas separation channel; 6. Third oil-gas separation channel; 7. First oil return channel; 8. Second oil return channel; 9. Third oil return channel; 10. Side wall; 11. End plate; 12. Separator exhaust hole; 13. Oil return hole; 14. First baffle plate; 15. Second baffle plate; 16. Third baffle plate; 17. Rotating oil baffle plate; 18. Rotating shaft portion; 19. Rotating portion; 20. First baffle plate portion; 21. Second baffle plate portion; 22. Labyrinth structure; 23. Blades; 24. Oil collecting portion; 25. Front cover; 26. Stator vortex plate; 27. Front cover buffer chamber; 28. Front cover exhaust channel; 29. ​​Oil storage chamber; 30. Total oil return channel; 31. Throttle pin; 32. Front cover air inlet channel; 33. Cyclone oil separator. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the technical solutions of the present disclosure will be clearly and completely described below in combination with the specific embodiments of the present disclosure and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0032] Combination Figures 1 to 5 As shown, an embodiment of the present disclosure provides an oil-gas separator for oil-gas separation of a scroll compressor, wherein the compressor comprises a stator plate exhaust port 1, and the oil-gas separator comprises a cover body 2, wherein an air inlet cavity 3 is provided in the cover body 2, and the air inlet cavity 3 is communicated with the stator plate exhaust port 1, and at least one oil-gas separation channel is also provided in the cover body 2, wherein one end of each of the at least one oil-gas separation channel is communicated with the air inlet cavity 3, and the other end is communicated to the outside of the cover body 2, and at least one oil return channel is also provided in the cover body 2, and the at least one oil return channel is constructed to discharge the lubricating oil in the oil-gas separation channel and / or the air inlet cavity 3.

[0033] The oil-gas separator of the disclosed embodiment is used for oil-gas separation of a scroll compressor. A plurality of oil-gas separation channels and oil return channels are arranged in the cover body 2. The oil-gas separation channel has an oil-gas separation function. When the compressor is running, the gas is discharged from the stator exhaust port 1 and first enters the air inlet chamber 3, where it stays for a short time, thereby suppressing the exhaust noise and diverting the gas. When the oil-gas mixture flows through the oil-gas separation channel, the lubricating oil is separated and flows into the oil return channel, and the remaining gas is discharged from the cover body 2. The cyclone oil separator 33 of the front cover 25 may also be used for secondary oil-gas separation, thereby reducing the amount of lubricating oil discharged, improving the reliability of the compressor, enhancing the heat exchange performance of the compressor and the energy efficiency of the whole machine, reducing the exhaust noise, and reducing the temperature of the high-temperature refrigerant gas.

[0034] In some embodiments, the cover body 2 includes a side wall 10 and an end plate 11, the side wall 10 is connected to the edge of the end plate 11, the end plate 11 and the side wall 10 form an accommodating cavity, the air inlet cavity 3, the at least one oil-gas separation channel, and the at least one oil return channel are all arranged in the accommodating cavity; a separator exhaust hole 12 is provided on the side wall 10 corresponding to the oil-gas separation channel; an oil return hole 13 is provided on the side wall 10 corresponding to the oil return channel.

[0035] The oil-gas separator of the present embodiment is mainly composed of an end plate 11 and a side wall 10 to form a cover-shaped structure. The air intake chamber 3, the oil-gas separation channel, and the oil return channel are all arranged in the cover-shaped structure. It can be assembled through sheet metal processing and then connected to the static scroll plate 26 of the compressor through welding. It has a simple structure and is easy to process.

[0036] In some embodiments, the air inlet cavity 3 is surrounded by a first baffle 14, the air inlet cavity 3 is open toward one side of the stator plate exhaust port 1, the position of the air inlet cavity 3 in the cover body 2 corresponds to the stator plate exhaust port 1, the first baffle 14 is in sealing contact with the structure around the stator plate exhaust port 1, specifically the end surface structure of the stator vortex disk 26, and the first baffle 14 is constructed to enable the gas discharged from the stator plate exhaust port 1 to directly enter the air inlet cavity 3. Preferably, the axial projection of the air inlet along the cover body 2 is aligned with the axial projection of the stator plate exhaust port 1.

[0037] The air intake cavity 3 of this embodiment mainly performs noise reduction on the high-pressure and high-speed gas discharged from the stator exhaust port 1 and evenly distributes it to each oil-gas separation channel to achieve oil-gas separation of the compressor exhaust.

[0038] In some embodiments, the cover body 2 is a circular cover body 2 , the air inlet cavity 3 is arranged at the center of the cover body 2 , and the at least one oil-gas separation channel is distributed at intervals along the circumference of the cover body 2 .

[0039] The oil-gas separator of this embodiment adopts a circular structure, the air inlet cavity 3 is arranged at the center of the cover body 2, and multiple oil-gas separation channels are distributed at intervals along the circumference, so that the mixed gas is divided into multiple streams in the center of the oil-gas separator. Each airflow flows radially and separates oil and gas at the same time, and is finally discharged from the circumference of the cover body 2. During the flow process, noise reduction and oil-gas separation are simultaneously completed.

[0040] In some embodiments, at least one rotating oil baffle plate 17 is provided in the oil-gas separation channel, and the at least one rotating oil baffle plate 17 is rotatable and installed in the oil-gas separation channel at intervals along the airflow direction. Preferably, the rotating oil baffle plate 17 includes a rotating shaft portion 18, and at least one rotating portion 19 is rotatably provided on the rotating shaft portion 18, and the rotating portion 19 is provided with a baffle portion in at least one radial direction, and the baffle portion can rotate around the rotating shaft portion 18 along with the rotating portion 19.

[0041] In this embodiment, in order to achieve the oil-gas separation performance of the oil-gas separation channel, a rotating oil baffle plate 17 is used. After the oil-gas mixture enters the oil-gas separation channel, the baffle portion starts to rotate under the drive of the airflow during the contact between the oil-gas mixture and the rotating oil baffle plate 17. The lubricating oil contacts the baffle portion and separates from the refrigerant gas under the drive of centrifugal force, thereby achieving oil-gas separation. The gas is discharged into the front cover 25 through the separator exhaust hole 12. The lubricating oil blocked by the rotating oil baffle plate 17 flows into the oil return channel under the action of gravity and finally flows back to the compressor oil pool. The rotating oil baffle plate 17 can rotate at high speed driven by the airflow. On the one hand, it can bypass and reduce the noise of the oil-gas mixture flowing through it. On the other hand, it can quickly shake off the lubricating oil on the surface of the baffle portion with the help of the rotating centrifugal force.

[0042] Furthermore, in order to improve the rotation performance of the rotating oil baffle plate 17 after being impacted by the oil-gas mixture, the rotating portion 19 is provided with a first baffle portion 20 on one side along any diameter and a second baffle portion 21 on the other side, and the first baffle portion 20 and the second baffle portion 21 have different areas.

[0043] In some embodiments, a labyrinth structure 22 is provided in the oil-gas separation channel, and the labyrinth structure 22 includes at least two blades 23 arranged at intervals. In this embodiment, the labyrinth structure 22 is provided in the oil-gas separation channel, and the oil-gas separation effect of the mixed oil and gas can also be achieved. Preferably, the labyrinth structure 22 is formed by two or more blades 23, which are arranged alternately and at intervals in the oil-gas labyrinth channel. The number of blades 23 can be taken according to design requirements. According to the knowledge of fluid mechanics, when the gas flows from a larger cavity to a smaller cavity, its flow rate will increase due to the decrease in the cross-sectional area of ​​the cavity, and the faster the flow rate of the mixed fluid when it hits the blade 23, the easier it is for the oil droplets to be separated. Based on this principle, when the mixed fluid flows through the labyrinth structure and hits each blade 23 in the flow direction, the droplets will separate and fall into the bottom of the oil-gas separation channel under the action of gravity. This process is repeated until the gas flows out of the right side of the oil-gas separation channel, and then discharged from the oil-gas separator and enters the migration buffer cavity of the front cover 25.

[0044] In some embodiments, the oil-gas separation channel is surrounded by two second partitions 15, and the two second partitions 15 are arranged in parallel; and / or, the oil return channel is surrounded by two third partitions 16, and the two third partitions 16 are arranged in parallel. Therefore, in this embodiment, the oil-gas separation channel and / or the oil return channel are separated by parallel partitions, and the second partition 15 extends along the axial direction of the cover body 2, and respectively abuts on the end plate 11 and the static vortex disk 26 of the oil-gas separator, so that the two second partitions 15, the end plate 11, and the static vortex disk 26 form a closed oil-gas separation channel with a simple structure. It only needs to perform simple processing on the shape of the partition to form the oil-gas separation channel, which is very convenient for production and manufacturing, and can improve the production efficiency of the product. Because of the simple structure, the reliability of the oil-gas separator is very high.

[0045] In some embodiments, the oil-gas separation channel includes a first oil-gas separation channel 4, a second oil-gas separation channel 5, and a third oil-gas separation channel 6. The first oil-gas separation channel 4 is arranged in the direction opposite to the gravity of the air inlet chamber 3, and the second oil-gas separation channel 5 and the third oil-gas separation channel 6 are respectively arranged in two horizontal directions of the air inlet chamber 3. Further, the oil return channel includes a first oil return channel 7, a second oil return channel 8, and a third oil return channel 9. The oil return hole 13 is arranged at the bottom of the cover body 2 in the gravity direction. The second oil return channel 8 is connected between the air inlet chamber 3 and the oil return hole 13. The first oil return channel 7 is connected between the first oil-gas separation channel 4 and the oil return hole 13. The third oil return channel 9 is connected between the third oil-gas separation channel 6 and the oil return hole 13. When the oil-gas separator of this embodiment is applied to a horizontal scroll compressor, it is possible to consider using gravity to improve the reflux efficiency of the lubricating oil in the oil-gas separator. Therefore, according to the horizontal position of the lower scroll compressor, oil-gas separation channels are set in the oil-gas separator in three directions: the upper vertical direction, the left and right sides in the horizontal direction. At the same time, the return oil channel is set below the vertical direction, and the first oil-gas separation channel 4 and the third oil-gas separation channel 6 on the left and right sides in the horizontal direction are respectively provided with a first return oil channel 7 and a second return oil channel 8 that can discharge oil along the direction of gravity. Since the second oil-gas separation channel 5 and the air inlet chamber 3 are located in the same gravity direction, the lubricating oil in the second oil-gas separation channel 5 can flow to the air inlet chamber 3 under the action of gravity, and then be discharged through the second oil-gas separation channel 5 at the bottom of the air inlet chamber 3.

[0046] In some embodiments, in order to improve the oil drainage capacity of the horizontally arranged first oil-gas separation channel 4 and / or the second oil-gas separation channel 5, an oil collecting portion 24 recessed along the gravity direction is provided at the connection between the first oil-gas separation channel 4 and the first oil return channel 7; and / or, an oil collecting portion 24 recessed along the gravity direction is provided at the connection between the third oil-gas separation channel 6 and the third oil return channel 9. The oil collecting portion 24 can quickly collect the lubricating oil and improve the reflux efficiency of the lubricating oil.

[0047] The present embodiment also provides a scroll compressor, including the above-mentioned oil-gas separator, and also includes a front cover 25 and a static scroll plate 26, the static plate exhaust port 1 is arranged on the static scroll plate 26, the front cover 25 is fixed on the static scroll plate 26, and the oil-gas separator is wrapped between the static scroll plate 26 and the front cover 25, and the oil-gas separator is specifically accommodated in the front cover buffer cavity 27 of the front cover 25.

[0048] The scroll compressor of this embodiment uses the oil-gas separator disclosed in the present invention. When the compressor is running, the gas is discharged from the static plate exhaust port 1 and first enters the air inlet chamber 3, where it stays for a short time, which plays a role in suppressing exhaust noise and diverting flow. When the oil-gas mixture flows through the oil-gas separation channel, the lubricating oil is separated and flows into the oil return channel, and the remaining gas is discharged from the cover body 2. It can also pass through the cyclone oil separator 33 of the front cover 25 for secondary oil-gas separation, thereby reducing the amount of lubricating oil discharged, improving the reliability of the compressor, enhancing the heat exchange performance of the compressor and the energy efficiency of the whole machine, reducing exhaust noise, and reducing the temperature of the high-temperature refrigerant gas.

[0049] In some embodiments, a front cover buffer chamber 27 and a front cover exhaust channel 28 are provided in the front cover 25, and the gas exhausted by the oil-gas separator can enter the front cover buffer chamber 27. The front cover buffer chamber 27 is connected to the front cover exhaust channel 28 through a front cover air inlet channel 32, and a cyclone oil separator 33 is provided in the front cover exhaust channel 28.

[0050] The scroll compressor of this embodiment, in addition to being provided with an oil-gas separator on the fixed scroll disk 26, is also provided with a cyclone oil-gas separator in the front cover 25 to perform secondary oil-gas separation on the gas discharged from the oil-gas separator, thereby further improving the oil-gas separation capability of the compressor exhaust, reducing the discharge amount of lubricating oil, and improving the reliability of the compressor.

[0051] In some embodiments, an oil storage chamber 29 is further provided in the front cover exhaust passage 28, and the oil storage chamber 29 is used to store the lubricating oil separated by the cyclone oil separator 33. In this embodiment, the oil storage chamber 29 is provided in the front cover 25, and the lubricating oil separated by the cyclone oil separator 33 can be collected and stored.

[0052] In some embodiments, a total oil return channel 30 is also included. An oil pool is provided in the scroll compressor. The total oil return channel 30 connects the oil return hole 13 with the oil pool; when an oil storage chamber 29 is included, the total oil return channel 30 also connects the oil storage chamber 29 with the oil pool. The total oil return channel 30 of this embodiment can transport the lubricating oil separated by the oil-gas separator and the cyclone separator back to the oil pool of the compressor. The lubricating oil can participate in the lubrication work of the compressor to ensure the amount of lubricating oil in the compressor. Preferably, a throttling pin 31 is provided in the total oil return channel 30, and the throttling pin 31 can filter and throttle the refluxed lubricating oil.

[0053] The disclosed embodiments also provide an air conditioner, which adopts the above-mentioned oil-gas separator or the above-mentioned scroll compressor.

[0054] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0055] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. The above are only preferred implementations of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present disclosure, and these improvements and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. An oil-gas separator for oil-gas separation of a scroll compressor, characterized in that: The scroll compressor comprises a stator plate exhaust port (1), the oil-gas separator comprises a cover body (2), an air inlet cavity (3) is provided in the cover body (2), the air inlet cavity (3) is communicated with the stator plate exhaust port (1), at least one oil-gas separation channel is provided in the cover body (2), one end of each of the at least one oil-gas separation channel is communicated with the air inlet cavity (3), and the other end is communicated with the outside of the cover body (2), at least one oil return channel is provided in the cover body (2), and the at least one oil return channel is configured to discharge lubricating oil in the oil-gas separation channel and / or the air inlet cavity (3); The cover body (2) is circular, the air inlet cavity (3) is arranged at the center of the cover body (2), and the at least one oil-gas separation channel is distributed at intervals along the circumference of the cover body (2); At least one rotating oil baffle plate (17) is arranged in the oil-gas separation channel, and the at least one rotating oil baffle plate (17) is rotatable and installed in the oil-gas separation channel at intervals along the air flow direction; The rotary oil baffle plate (17) comprises a rotating shaft portion (18), on which at least one rotating portion (19) can be rotatably arranged, and a baffle portion is provided in at least one radial direction of the rotating portion (19), and the baffle portion can rotate around the rotating shaft portion (18) along with the rotating portion (19); the rotating portion (19) is provided with a first baffle portion (20) on one side along any diameter, and a second baffle portion (21) on the other side, and the first baffle portion (20) and the second baffle portion (21) have different areas.

2. The oil-gas separator according to claim 1, characterized in that: The cover body (2) comprises a side wall (10) and an end plate (11); the side wall (10) is connected to the edge of the end plate (11); the end plate (11) and the side wall (10) form a receiving cavity; the air inlet cavity (3), the at least one oil-gas separation channel, and the at least one oil return channel are all arranged in the receiving cavity; a separator exhaust hole (12) is provided on the side wall (10) corresponding to the oil-gas separation channel; and an oil return hole (13) is provided on the side wall (10) corresponding to the oil return channel.

3. The oil-gas separator according to claim 1, characterized in that: The air inlet cavity (3) is surrounded by a first baffle (14), and the air inlet cavity (3) is open toward one side of the stator disk exhaust port (1). The position of the air inlet cavity (3) in the cover body (2) corresponds to the stator disk exhaust port (1). The first baffle (14) is in sealing contact with the structure around the stator disk exhaust port (1), and the first baffle (14) is constructed to enable the gas discharged from the stator disk exhaust port (1) to directly enter the air inlet cavity (3).

4. The oil-gas separator according to claim 2, characterized in that: A labyrinth structure (22) is provided in the oil-gas separation channel, and the labyrinth structure (22) comprises at least two blades (23) arranged at intervals.

5. The oil-gas separator according to claim 3, characterized in that: The oil-gas separation channel is surrounded by two second partitions (15), and the two second partitions (15) are arranged in parallel; and / or the oil return channel is surrounded by two third partitions (16), and the two third partitions (16) are arranged in parallel.

6. The oil-gas separator according to claim 2, characterized in that: The oil-gas separation channel comprises a first oil-gas separation channel (4), a second oil-gas separation channel (5), and a third oil-gas separation channel (6); the first oil-gas separation channel (4) is arranged in a direction opposite to gravity of the air inlet chamber (3); and the second oil-gas separation channel (5) and the third oil-gas separation channel (6) are respectively arranged in two horizontal directions of the air inlet chamber (3).

7. The oil-gas separator according to claim 6, characterized in that: The oil return channel comprises a first oil return channel (7), a second oil return channel (8), and a third oil return channel (9); the oil return hole (13) is arranged at the bottom of the cover body (2) along the gravity direction; the second oil return channel (8) is connected between the air inlet chamber (3) and the oil return hole (13); the first oil return channel (7) is connected between the first oil-gas separation channel (4) and the oil return hole (13); and the third oil return channel (9) is connected between the third oil-gas separation channel (6) and the oil return hole (13).

8. The oil-gas separator according to claim 7, characterized in that: An oil collecting portion (24) recessed along the direction of gravity is provided at the connection between the first oil-gas separation channel (4) and the first oil return channel (7); and / or an oil collecting portion (24) recessed along the direction of gravity is provided at the connection between the third oil-gas separation channel (6) and the third oil return channel (9).

9. A scroll compressor, characterized in that: The oil-gas separator comprises the oil-gas separator as described in any one of claims 1 to 8, and further comprises a front cover (25) and a static vortex plate (26), wherein the static vortex plate exhaust port (1) is arranged on the static vortex plate (26), the front cover (25) is fixed on the static vortex plate (26), and the oil-gas separator is wrapped between the static vortex plate (26) and the front cover (25).

10. The scroll compressor according to claim 9, characterized in that: The front cover (25) is provided with a front cover buffer chamber (27) and a front cover exhaust channel (28); the gas discharged from the oil-gas separator can enter the front cover buffer chamber (27); the front cover buffer chamber (27) and the front cover exhaust channel (28) are connected via a front cover air inlet channel (32); and a cyclone oil separator (33) is provided in the front cover exhaust channel (28).

11. The scroll compressor according to claim 10, characterized in that: An oil storage chamber (29) is also provided in the front cover exhaust passage (28), and the oil storage chamber (29) is used to store the lubricating oil separated by the cyclone oil separator (33).

12. The scroll compressor according to any one of claims 9 to 11, characterized in that: The scroll compressor further comprises a total oil return passage (30), an oil pool is provided in the scroll compressor, and the total oil return passage (30) communicates with the oil return hole (13) and the oil pool; when the scroll compressor comprises an oil storage chamber (29), the total oil return passage (30) also communicates with the oil storage chamber (29) and the oil pool.

13. An air conditioner, characterized in that: An oil-gas separator as described in any one of claims 1 to 8, or a scroll compressor as described in any one of claims 9 to 12 is used.

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