Oil-gas separation assembly and compressor

Abstract

The invention relates to the technical field of compressors, in particular to an oil-gas separation assembly and a compressor. The oil-gas separation assembly is arranged in the shell and divides the shell into a motor cavity and a pump body cavity, a gas passage is arranged on the upper portion of the oil-gas separation assembly, an oil passage is arranged on the lower portion of the oil-gas separation assembly, the gas passage is used for gas circulation, and the oil passage is used for oil circulation. The oil-gas separation assembly realizes separation of a gas path and an oil path, so that oil-gas confusion is prevented, a high oil level of a pump body cavity is ensured while a crankshaft pumps oil normally, the oil-gas separation is realized, the oil circulation rate is reduced, and the compressor efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to an oil-gas separation component and a compressor. Background Art

[0002] At present, when a horizontal compressor is working, the refrigerant will first be discharged to the motor side to reduce the motor temperature and improve the motor efficiency, and then discharged from the compressor through the flow channel of the fairing and the upper cylinder head via the pump body side. The crankshaft pump oil is pumped by pressure difference, sucking oil from the oil suction pipe to the crankshaft and then discharged to the motor side, and this cycle repeats. In the prior art, the flow between the motor side and the pump body side is through the gap between the outer periphery of the fairing and the inner edge of the shell. If the gap is too small, the pressure difference will be too high. If the gap is too large, the pressure difference will be too low, which will lead to unstable pressure difference, causing the crankshaft to be unable to pump oil normally. At the same time, the gas circuit and the oil circuit flow through the same channel, causing the gas to blow the oil surface and carry the oil out of the compressor shell, resulting in a higher oil circulation rate of the compressor.

[0003] Therefore, there is an urgent need for an oil-gas separation component and a compressor to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide an oil-gas separation component and a compressor, which can achieve oil-gas separation while the crankshaft pumps oil normally, reduce the oil circulation rate, and ensure a high oil level on the pump body side.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An oil-gas separation component is arranged in a shell and divides the shell into a motor cavity and a pump body cavity. A gas passage is arranged at the upper part of the oil-gas separation component, and an oil passage is arranged at the lower part of the oil-gas separation component. The gas passage is used to circulate gas, and the oil passage is used to circulate oil.

[0007] As a preferred technical solution of the above-mentioned oil-gas separation component, the oil-gas separation component includes an upper cylinder head, a fairing and a muffler, the shell is provided with a cavity, the upper cylinder head is arranged in the cavity, and the cavity is divided into the motor cavity and the pump body cavity, the fairing is fixedly connected to the upper cylinder head and the muffler respectively, and the fairing and the muffler are both located in the motor cavity, the upper part of the upper cylinder head is provided with a first ventilation channel and a second ventilation channel, the lower part of the upper cylinder head is provided with a first oil passage, the upper part of the fairing is provided with a third ventilation channel, the lower part of the fairing is provided with a second oil passage, the first ventilation channel is communicated with the third ventilation channel, the shell is provided with an outlet, the second ventilation channel is communicated with the outlet, the first oil passage is communicated with the second oil passage, the first ventilation channel, the second ventilation channel, the third ventilation channel and the outlet constitute the gas passage, and the first oil passage and the second oil passage constitute the oil passage.

[0008] As a preferred technical solution of the above-mentioned oil-gas separation component, the upper cylinder head includes a cylinder body and a shaft diameter, the cylinder body is connected to the shaft diameter, the shaft diameter is located in the motor cavity, a skirt is provided on the outer periphery of the cylinder body, and a first arc edge is provided on the inner edge of the skirt located at one end of the motor cavity, the fairing includes a first ring, a transition portion and a second ring, one end of the transition portion is connected to an end of the second ring away from the pump body cavity, and the other end of the transition portion is connected to an end of the first ring close to the upper cylinder head through a second arc edge, and the inner curvature of the first arc edge is consistent with the outer curvature of the second arc edge, so that the second arc edge of the fairing can be completely fitted with the first arc edge of the upper cylinder head.

[0009] As a preferred technical solution of the above-mentioned oil-gas separation component, the third ventilation channel is arranged in the transition portion, and the first ventilation channel and the second ventilation channel are arranged along the circumference of the cylinder body.

[0010] As a preferred technical solution of the above-mentioned oil-gas separation component, a connecting portion is provided at one end of the second ring close to the pump body cavity, and a peripheral edge of the muffler is provided with a surrounding edge, and the diameter of the surrounding edge is larger than the minimum inner diameter of the connecting portion, so that the muffler can be fixed to the fairing through the surrounding edge, and the oil-gas separation component also includes a fixing part, which is used to fix the muffler to the upper cylinder head.

[0011] As a preferred technical solution of the above-mentioned oil-gas separation component, the shape and structure of the second oil passage is the same as the shape and structure of the first oil passage.

[0012] As a preferred technical solution of the above-mentioned oil-gas separation component, the width of the transition portion along its radial direction is d, and the width of the third ventilation channel along its radial direction is dg, wherein 0.3d≤dg≤0.8d.

[0013] As a preferred technical solution of the above-mentioned oil-gas separation component, the area of ​​the transition portion is M, and the area of ​​the third ventilation channel is Mg, wherein 0.12M≤Mg≤0.2M.

[0014] As a preferred technical solution of the above-mentioned oil-gas separation component, the area of ​​the second oil passage is MO, and the area of ​​the third air passage is Mg, wherein 0.2Mg≤MO≤0.5Mg.

[0015] A compressor comprises a motor and a pump body, and the compressor also comprises an oil-gas separation component in any one of the above-mentioned preferred technical solutions, the motor is arranged in the motor cavity, the pump body is arranged in the pump body cavity, and one end of the motor can pass through the oil-gas separation component and be transmission-connected to the pump body.

[0016] Beneficial effects of the present invention:

[0017] The present invention provides an oil-gas separation component. The oil-gas separation component is arranged in a housing, and the housing is divided into a motor cavity and a pump body cavity. A gas passage is arranged at the upper part of the oil-gas separation component, and an oil-liquid passage is arranged at the lower part of the oil-gas separation component. The gas passage is used to circulate gas, and the oil-liquid passage is used to circulate oil. The oil-gas separation component realizes the separation of the gas path and the oil path, thereby preventing the mixing of oil and gas, ensuring the high oil level in the pump body cavity while the crankshaft pumps oil normally, reducing the oil circulation rate while realizing the oil-gas separation, and improving the efficiency of the compressor.

[0018] The present invention also provides a compressor, comprising an external motor, a pump body and the above-mentioned oil-gas separation component, wherein the motor is arranged in the motor cavity, the pump body is arranged in the pump body cavity, and one end of the motor can pass through the oil-gas separation component and be transmission-connected with the pump body. Compared with the prior art, the pump body cavity of the compressor can maintain a high oil level, so that the crankshaft pump oil volume is sufficient, the oil return rate of the compressor is reduced, and the service life of the compressor is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1A first structural schematic diagram of an oil-gas separation assembly provided in an embodiment of the present invention;

[0021] Figure 2 A second structural schematic diagram of an oil-gas separation component provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of an upper cylinder cover provided in Embodiment 1 of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a fairing provided in Embodiment 1 of the present invention;

[0024] Figure 5 A schematic diagram of the structure of an upper cylinder cover provided in Embodiment 2 of the present invention;

[0025] Figure 6 A schematic diagram of the structure of a fairing provided in Embodiment 2 of the present invention;

[0026] Figure 7 A schematic diagram of the structure of an upper cylinder cover provided in Embodiment 3 of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the fairing provided in Example 3 of the present invention.

[0028] In the figure:

[0029] 1. Shell; 11. Outlet; 2. Upper cylinder head; 21. First ventilation channel; 22. Second ventilation channel; 23. First oil channel; 24. Cylinder body; 25. Shaft diameter; 26. Skirt; 3. Fairing; 31. Third ventilation channel; 32. Second oil channel; 33. First ring; 34. Transition part; 35. Second ring; 36. Connecting part; 4. Motor cavity; 5. Pump body cavity; 6. Muffler; 61. Surrounding edge. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 1 As shown, the present invention provides an oil-gas separation component and a compressor. The oil-gas separation component is arranged in a housing 1, and the housing 1 is divided into a motor cavity 4 and a pump body cavity 5. A gas passage is arranged at the upper part of the oil-gas separation component, and an oil passage is arranged at the lower part of the oil-gas separation component. The gas passage is used to circulate gas, and the oil passage is used to circulate oil. The oil-gas separation component realizes the separation of the gas circuit and the oil circuit, thereby preventing the mixing of oil and gas, ensuring the high oil level in the pump body cavity 5 while the crankshaft pumps oil normally, reducing the oil circulation rate while realizing the oil-gas separation, and improving the efficiency of the compressor.

[0035] Alternatively, if Figures 2 to 4As shown, the oil-gas separation assembly includes an upper cylinder head 2, a fairing 3 and a muffler 6. The housing 1 is provided with a cavity, the upper cylinder head 2 is provided in the cavity, and the cavity is divided into a motor cavity 4 and a pump body cavity 5. The fairing 3 is fixedly connected to the upper cylinder head 2 and the muffler 6, respectively, and the fairing 3 and the muffler 6 are both located in the motor cavity 4. The upper part of the upper cylinder head 2 is provided with a first ventilation channel 21 and a second ventilation channel 22, the lower part of the upper cylinder head 2 is provided with a first oil passage 23, and the upper part of the fairing 3 is provided with There is a third ventilation channel 31, a second oil passage 32 is provided at the lower part of the fairing 3, the first ventilation channel 21 is connected with the third ventilation channel 31, the shell 1 is provided with an outlet 11, the second ventilation channel 22 is connected with the outlet 11, the first oil passage 23 is connected with the second oil passage 32, the first ventilation channel 21, the second ventilation channel 22, the third ventilation channel 31 and the outlet 11 form a gas passage, and the first oil passage 23 and the second oil passage 32 form an oil passage. The oil-gas separation component realizes the separation of the gas path and the oil path by making the first ventilation channel 21 communicate with the third ventilation channel 31 and the first oil passage 23 communicate with the second oil passage 32, thereby preventing oil and gas from being mixed, ensuring that the crankshaft pumps oil normally while ensuring a high oil level in the pump body cavity 5, and reducing the oil circulation rate while achieving oil-gas separation, thereby improving the efficiency of the compressor. It should be noted that the oil-gas separation component is suitable for horizontal compressors.

[0036] Optionally, the upper cylinder head 2 includes a cylinder body 24 and a shaft diameter 25, the cylinder body 24 is connected to the shaft diameter 25, the shaft diameter 25 is located in the motor cavity 4, a skirt 26 is provided on the outer periphery of the cylinder body 24, the inner edge of the skirt 26 located at one end of the motor cavity 4 is provided with a first arc edge, the fairing 3 includes a first ring 33, a transition portion 34 and a second ring 35, one end of the transition portion 34 is connected to an end of the second ring 35 away from the pump body cavity 5, and the other end of the transition portion 34 is connected to an end of the first ring 33 close to the upper cylinder head 2 through the second arc edge, the inner curvature of the first arc edge is consistent with the outer curvature of the second arc edge, so that the second arc edge of the fairing 3 can be completely fitted with the first arc edge of the upper cylinder head 2, thereby preventing oil and gas from flowing through the gap between the upper cylinder head 2 and the fairing 3.

[0037] Optionally, a connection portion 36 is provided at one end of the second ring 35 close to the pump body cavity 5, and a peripheral edge 61 is provided at the outer peripheral edge of the muffler 6, and the diameter of the peripheral edge 61 is greater than the minimum inner diameter of the connection portion 36, so that the muffler 6 can fix the fairing 3 through the peripheral edge 61. Specifically, the peripheral edge 61 of the muffler 6 can be pressed on the connection portion 36 of the fairing 3, and the fairing 3 is fixed by fixing the muffler 6. In addition, the connection portion 36 of the fairing 3 can also be fixedly connected to the peripheral edge 61 of the muffler 6 by interference, welding, etc.

[0038] Optionally, the oil-gas separation assembly further includes a fixing member, which is used to fix the muffler 6 to the upper cylinder head 2. Specifically, the fixing member is a bolt, and the muffler 6 can be fixed to the upper cylinder head 2 by bolts, so that the surrounding edge 61 of the muffler 6 abuts against the connecting portion 36 of the fairing 3, and the second arc edge of the fairing 3 abuts against the first arc edge of the upper cylinder head 2, and the bolts are tightened so that the upper cylinder head 2, the fairing 3 and the muffler 6 are completely fixed together, ensuring that the first arc edge of the upper cylinder head 2 and the second arc edge of the fairing 3 are completely fitted, and the surrounding edge 61 of the muffler 6 is pressed against the connecting portion 36 of the fairing 3, so that the upper cylinder head 2, the fairing 3 and the muffler 6 can achieve a gapless fit, thereby eliminating the possibility of oil and gas flowing through the gap. In addition, the original ventilation channel is cancelled at the lower part of the upper cylinder head 2, and only the ventilation channel is set at the upper part. Therefore, when the upper cylinder head 2, the fairing 3 and the muffler 6 are matched without gaps, the gas can only flow through the first ventilation channel 21 and the third ventilation channel 31, and the oil can only flow through the first oil passage 23 and the second oil passage 32. Therefore, it can prevent the oil and gas from mixing due to the simultaneous flow of oil and gas in the same channel, and the gas blowing the oil surface to carry the oil out of the compressor casing, resulting in a higher oil circulation rate of the compressor.

[0039] Optionally, the first ventilation channel 21 and the second ventilation channel 22 are arranged along the circumference of the cylinder body 24 of the upper cylinder 2 and do not interfere with each other. The shape and structure of the two do not need to be consistent. The third ventilation channel 31 of the fairing 3 is arranged along its circumference at the transition portion 34 and corresponds to the position of the first ventilation channel 21, so that the flow of gas can be smoother. In addition, the second ventilation channel 22 is arranged at the compressor outlet 11, and the third ventilation channel 31 needs to be arranged away from the second ventilation channel 22, so that the residence time of the refrigerant gas flowing from the motor cavity 4 to the pump body cavity 5 is increased, and a pressure difference pump oil can be effectively formed. Specifically, the first ventilation channel 21 and the second ventilation channel 22 are preferably waist-shaped holes; the third ventilation channel 31 is a waist-shaped hole or a round hole. When the third ventilation channel 31 is a round hole, multiple round holes can be arranged adjacent to each other, and it is only necessary to ensure that they correspond to the position of the first ventilation channel 21. It should be understood that the shapes and structures of the first ventilation channel 21, the second ventilation channel 22, and the third ventilation channel 31 are merely examples and not limitations, and other shapes and structures are acceptable as long as they allow for smooth flow of gas.

[0040] Alternatively, if Figure 5 and Figure 6As shown, the first oil passage 23 is located at the bottom of the upper cylinder head 2, and the second oil passage 32 is located at the bottom of the fairing 3, so both are located at the bottom of the compressor (the compressor is a horizontal compressor). An oil pool is provided at the bottom of the compressor, and the oil flows through the first oil passage 23 and the second oil passage 32. The first oil passage 23 can be a waist-shaped hole, a rectangular hole or an arc-shaped hole. The specific shape and structure are not limited as long as the oil can flow. It should be noted that the shape and structure of the second oil passage 32 need to be the same as the shape and structure of the first oil passage 23, so that the flow of oil can be unobstructed and smooth, which is convenient for the lubricating oil in the motor cavity 4 to enter the pump body cavity 5, so as to ensure that the pump body cavity 5 maintains a high oil level.

[0041] Furthermore, if Figure 3 and Figure 4 As shown, the upper cylinder head 2 is provided with two first ventilation channels 21 and one second ventilation channel 22, and the fairing 3 is provided with two third ventilation channel groups, the two third ventilation channel groups are arranged in a one-to-one correspondence with the positions of the two first ventilation channels 21, and each third ventilation channel group is provided with a plurality of third ventilation channels 31 at intervals, and the positions of the plurality of third ventilation channels 31 correspond to the positions of the first ventilation channels 21.

[0042] Furthermore, if Figure 7 and Figure 8 As shown, the upper cylinder head 2 is provided with two first ventilation channels 21 and one second ventilation channel 22, and the fairing 3 is provided with a plurality of third ventilation channels 31 at intervals along its axial direction, a portion of the third ventilation channels 31 is located opposite to one of the first ventilation channels 21, a portion of the third ventilation channels 31 is located opposite to another first ventilation channel 21, and the remaining portion of the third ventilation channels 31 is located opposite to the position between the two first ventilation channels 21.

[0043] Alternatively, if Figure 6 As shown, the width of the transition portion 34 along its radial direction is d, and the width of the third ventilation channel 31 is dg, wherein 0.3d≤dg≤0.8d. Such a setting can ensure the ventilation volume of the gas flow. Further, the area of ​​the transition portion 34 is M, and the flow area of ​​the third ventilation channel 31 is Mg, wherein 0.12M≤Mg≤0.2M. Such a setting is because if the flow area is too small, the pressure in the motor cavity 4 will always be greater than the pressure in the pump body cavity 5, and it will be impossible to form a pressure differential pumping oil. If the flow area is too large, it will easily cause the pressure difference between the motor cavity 4 and the pump body cavity 5 to be too small, resulting in the inability to pump oil. Therefore, by limiting the flow area of ​​the third ventilation channel 31, a pressure differential pumping oil can be effectively formed.

[0044] Optionally, the area of ​​the second oil passage 32 is MO, where 0.2Mg≤MO≤0.5Mg. This setting is to ensure that the overall rigidity of the fairing 3 is ensured so that the fairing 3 can meet the circulation requirements of the refrigerant gas in the third ventilation passage 31 while making the second oil passage 32 meet the circulation requirements of the oil as much as possible.

[0045] The present invention also provides a compressor, which includes a motor and a pump body. The compressor also includes the oil-gas separation component in the above embodiment. The motor is arranged in the motor cavity 4, and the pump body is arranged in the pump body cavity 5. One end of the motor can pass through the oil-gas separation component and be connected to the pump body for transmission. The compressor also includes other necessary components that constitute the compressor in the prior art.

[0046] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An oil-gas separation component, characterized in that: The oil-gas separation component is arranged in a housing (1) and divides the housing (1) into a motor cavity (4) and a pump body cavity (5); a gas passage is arranged at the upper part of the oil-gas separation component, and an oil passage is arranged at the lower part of the oil-gas separation component; the gas passage is used for circulating gas, and the oil passage is used for circulating oil.

2. The oil-gas separation component according to claim 1, characterized in that: The oil-gas separation assembly comprises an upper cylinder head (2), a fairing (3) and a muffler (6); the housing (1) is provided with a cavity; the upper cylinder head (2) is arranged in the cavity and divides the cavity into the motor cavity (4) and the pump body cavity (5); the fairing (3) is fixedly connected to the upper cylinder head (2) and the muffler (6), respectively, and the fairing (3) and the muffler (6) are both located in the motor cavity (4); the upper part of the upper cylinder head (2) is provided with a first ventilation channel (21) and a second ventilation channel (22); the lower part of the upper cylinder head (2) is provided with a first oil passage (23); the upper part of the fairing (3) is provided with A third air passage (31) is provided, a second oil passage (32) is provided at the lower part of the fairing (3), the first air passage (21) is communicated with the third air passage (31), the shell (1) is provided with an outlet (11), the second air passage (22) is communicated with the outlet (11), the first oil passage (23) is communicated with the second oil passage (32), the first air passage (21), the second air passage (22), the third air passage (31) and the outlet (11) constitute the gas passage, and the first oil passage (23) and the second oil passage (32) constitute the oil passage.

3. The oil-gas separation component according to claim 2, characterized in that: The upper cylinder head (2) comprises a cylinder body (24) and an axial diameter (25), wherein the cylinder body (24) is connected to the axial diameter (25), wherein the axial diameter (25) is located in the motor cavity (4), wherein a skirt (26) is provided on the outer periphery of the cylinder body (24), wherein the inner edge of the skirt (26) located at one end of the motor cavity (4) is provided with a first arc edge, wherein the fairing (3) comprises a first ring (33), a transition portion (34) and a second ring (35), wherein one end of the transition portion (34) is connected to an end of the second ring (35) away from the pump body cavity (5), and the other end of the transition portion (34) is connected to an end of the first ring (33) close to the upper cylinder head (2) via a second arc edge, wherein the inner arc angle of the first arc edge is consistent with the outer arc angle of the second arc edge, so that the second arc edge of the fairing (3) can be completely fitted with the first arc edge of the upper cylinder head (2).

4. The oil-gas separation component according to claim 3, characterized in that: The third ventilation channel (31) is arranged at the transition portion (34), and the first ventilation channel (21) and the second ventilation channel (22) are arranged along the circumferential direction of the cylinder body (24).

5. The oil-gas separation component according to claim 3, characterized in that: A connecting portion (36) is provided at one end of the second ring (35) close to the pump body cavity (5), and a peripheral edge (61) is provided on the outer peripheral edge of the muffler (6). The diameter of the peripheral edge (61) is larger than the minimum inner diameter of the connecting portion (36), so that the muffler (6) can be fixed to the fairing (3) through the peripheral edge (61). The oil-gas separation assembly also includes a fixing member, which is used to fix the muffler (6) to the upper cylinder head (2).

6. The oil-gas separation component according to claim 2, characterized in that: The shape and structure of the second oil passage (32) are the same as the shape and structure of the first oil passage (23).

7. An oil-gas separation component according to any one of claims 3 to 5, characterized in that: The width of the transition portion (34) along its radial direction is d, and the width of the third ventilation channel (31) along its radial direction is dg, wherein 0.3d≤dg≤0.8d.

8. An oil-gas separation component according to any one of claims 3 to 5, characterized in that: The area of ​​the transition portion (34) is M, and the area of ​​the third ventilation channel (31) is Mg, wherein 0.12M≤Mg≤0.2M.

9. An oil-gas separation component according to any one of claims 2 to 6, characterized in that: The area of ​​the second oil passage (32) is MO, and the area of ​​the third air passage (31) is Mg, wherein 0.2Mg≤MO≤0.5Mg.

10. A compressor, comprising a motor and a pump body, characterized in that: The compressor also includes an oil-gas separation component as described in any one of claims 1 to 9, the motor is arranged in the motor cavity (4), the pump body is arranged in the pump body cavity (5), and one end of the motor can pass through the oil-gas separation component and be transmission-connected to the pump body.

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