Oil conditioning and settling device and compressor

Abstract

An oil conditioning and settling device (100) and a compressor (200). The device comprises at least two partition plates (110, 120) which are vertically stacked at an interval and connected to each other; a central through hole (130) is provided in the center of each of the partition plates (110, 120); a plurality of conditioning and settling holes are provided at intervals around the central through hole (130) on each of the partition plates (110, 120); the conditioning and settling holes on two adjacent partition plates (110, 120) are vertically staggered and communicated with each other. The device is fixed in an oil sump, so as to prevent the liquid having bubbles on one side of a first partition plate (110) from direct mixing on one side of a second partition plate (120), which may reduce the viscosity of oil at the bottom of the oil sump, thereby improving the oil lubricating effect and the reliability of compressors.

Description

Oil leveling device and compressor

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411777524.1, filed on December 5, 2024, entitled "Oil Stabilizing Device and Compressor"; the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of compressor technology, and in particular to an oil stabilization device and a compressor. Background Technology

[0004] Existing compressors typically include a housing, a motor located within the housing, and a compression structure, which includes a crankshaft, cylinder, and cylinder head. An oil sump is located at the bottom of the housing, and the oil suction port of the compression structure is situated at the bottom of the oil sump to draw oil from the sump into the various components of the compression structure for lubrication.

[0005] When the compressor is running, gaseous refrigerant carrying some refrigeration oil accumulates in the upper cavity of the compressor. Once a certain amount is accumulated, it falls back into the oil sump located at the bottom of the compressor, ultimately forming a continuous oil circulation. The refrigerant and refrigeration oil exist in alternating states of miscibility and precipitation. When the refrigerant's solubility in the refrigeration oil is low, the dissolved refrigerant in the oil is saturated, and the refrigerant will be mixed in the liquid as bubbles. The viscosity of the oil containing bubbles decreases, and after falling back into the oil sump at the bottom of the compressor, it quickly mixes with the oil at the bottom of the sump, causing the viscosity of the bottom oil to decrease accordingly. Since the oil suction port in the compressor structure is generally located at the bottom of the oil sump, the decreased viscosity of the bottom oil will affect the lubrication effect of the friction pairs in the compressor structure, increasing the risk of abnormal wear of the compressor.

[0006] Application content

[0007] The purpose of this application is to provide an oil conditioning device and a compressor that can prevent return oil containing air bubbles from directly mixing into the bottom oil sump, thereby reducing the viscosity of the oil at the bottom of the oil sump, and thus improving the oil lubrication effect and the reliability of the compressor.

[0008] In a first aspect, this application provides an oil conditioning device, fixed in an oil bath, the oil conditioning device comprising:

[0009] At least two partitions are stacked and connected with a gap between them. A central through hole is opened in the center of each partition. Multiple settling holes are arranged around the central through hole on each partition at intervals. The settling holes on two adjacent partitions are staggered and connected.

[0010] In an optional embodiment, a settling plate is provided between at least a pair of vertically adjacent settling holes, the settling plate being fixed longitudinally to one of the two adjacent partitions and leaving a gap between it and the other partition.

[0011] In an optional embodiment, the settling holes on two adjacent partitions are alternately distributed in the circumferential direction.

[0012] In an alternative embodiment, a plurality of said settling plates are alternately fixed to two adjacent said partitions.

[0013] In an optional embodiment, the end of the settling plate is spaced apart from the inner or outer periphery of the partition plate by a certain distance.

[0014] In an optional embodiment, the partition includes a first partition and a second partition; the first partition and the second partition are coaxially arranged and have a circular structure, the central through hole of the first partition and the central through hole of the second partition are coaxially arranged and have the same shape and size, and the outer diameter of the first partition and the outer diameter of the second partition are equal.

[0015] In an optional embodiment, at least one of the first partition and the second partition has a mounting portion on the inner periphery of the central through hole.

[0016] In an optional embodiment, an annular wall is further included, which connects the first partition and the second partition respectively; the mounting portion is provided on the annular wall.

[0017] Secondly, this application provides a compressor, including a housing, a compression structure, and an oil stabilizing device as described in any of the foregoing embodiments, wherein the oil stabilizing device is connected between the housing and the compression structure.

[0018] In an optional embodiment, the compression structure includes a cylinder head and a muffler disposed within the housing;

[0019] The central through hole of the partition is sleeved on the outer periphery of the cylinder head and is sealed to the cylinder head; or, the central through hole of the partition is sleeved on the outer periphery of the muffler and is sealed to the muffler.

[0020] The outer circumferential surface of the partition is sealed to the shell.

[0021] In an optional embodiment, the cylinder head includes a connected flange portion and an axial extension portion, wherein the inner circumferential surfaces of the first partition and the second partition are respectively fitted onto the flange portion and sealed to the flange portion.

[0022] In an optional embodiment, the partition is positioned above the oil suction port of the compression structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 is a schematic diagram from a first perspective of the oil conditioning device provided in the embodiment of this application;

[0025] Figure 2 is a schematic diagram from a second perspective of the oil conditioning device provided in the embodiment of this application;

[0026] Figure 3 is a schematic diagram of an oil conditioning device provided in some embodiments of this application;

[0027] Figure 4 is a schematic diagram from a third perspective of the oil conditioning device provided in the embodiment of this application;

[0028] Figure 5 is a schematic diagram of an oil conditioning device provided in some embodiments of this application;

[0029] Figure 6 is a schematic diagram of the installation structure of the oil stabilization device provided in the embodiment of this application in the oil tank.

[0030] Icons: 100-Oil stabilizing device; 110-First partition; 111-First through hole; 112-First stabilizing plate; 113-First gap; 120-Second partition; 121-Second through hole; 122-Second stabilizing plate; 123-Second gap; 130-Central through hole; 131-Annular wall; 132-Mounting part; 133-Mounting hole; 134-Fastener; 140-Third partition; 141-Third through hole; 142-Third stabilizing plate; 200-Compressor; 201-Oil suction port; 210-Housing shell; 220-Cylinder head; 221-Flange part; 222-Axial extension part; 230-Silencer. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. The described embodiments are only a part of the embodiments of this application. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In addition, the terms "first," "second," and "third," etc., are only configured to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the meaning of the above terms in this application as appropriate.

[0037] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] The compressor structure includes an oil sump for lubricating various components. To achieve effective oil circulation, the oil suction port is located at the bottom of the oil sump, and the oil return port is located at the top. This arrangement allows the returned oil, after lubricating the components, to fall back into the oil sump from the top and be reused, thus forming an oil circulation system.

[0039] This application discloses an oil conditioning device applied in an oil sump. It can condition the return oil, reducing the amount of air bubbles carried in the return oil entering the bottom of the oil sump, ensuring the viscosity quality of the oil at the oil inlet at the bottom of the oil sump, thereby improving the lubrication effect of the oil.

[0040] Referring to Figures 1 and 2, an oil stabilization device 100 proposed in this application includes at least two partitions stacked and connected at intervals. A central through-hole 130 is formed in the center of each partition, and multiple stabilization holes are spaced around the central through-hole 130 on the partitions. The stabilization holes on adjacent partitions are staggered vertically and connected. This device can stabilize the return oil. After the return oil passes through multiple partitions sequentially, it reduces the amount of air bubbles entering the oil on one side of the lower partition.

[0041] Optionally, a settling plate is provided between at least one pair of vertically adjacent settling holes. The settling plate is fixed longitudinally to one of two adjacent partitions, leaving a gap between it and the other partition. The settling holes on the adjacent partitions are alternately distributed in the circumferential direction. Multiple settling plates are alternately fixed to adjacent partitions. The ends of the settling plates are spaced apart from the inner or outer circumference of the partitions.

[0042] In this embodiment, the partition includes a first partition 110 and a second partition 120. The settling orifice includes a first through-hole 111 in the first partition 110 and a second through-hole 121 in the second partition 120. The first partition 110 and the second partition 120 form a first settling channel and a second settling channel. The second partition 120 is connected to the first partition 110; the first through-hole 111 and the second through-hole 121 are offset but can communicate. The second partition 120 is located near the bottom of the oil tank relative to the first partition 110. The first partition 110 is located near the top of the oil tank relative to the second partition 120. The first settling channel includes a channel with the second through-hole 121 as the inlet and the first through-hole 111 as the outlet, configured to allow gas from one side of the second partition 120 to flow to the side of the first partition 110. The second settling channel includes a channel with the first through-hole 111 as the inlet and the second through-hole 121 as the outlet, configured to allow liquid from one side of the first partition 110 to flow to the side of the second partition 120. The oil stabilization device 100 can prevent the return oil with air bubbles on one side of the first partition 110 from directly mixing into the second partition 120 side, thereby reducing the viscosity of the oil at the bottom of the oil pool, thus ensuring the viscosity quality of the oil at the oil suction port 201 at the bottom of the oil pool and improving the lubrication effect of the oil.

[0043] In this embodiment, the first partition 110 and the second partition 120 are both disc structures with a central through hole 130. The first through hole 111 and the second through hole 121 are respectively arranged at intervals around the central through hole 130. The shape and size of the central through hole 130 can be appropriately adjusted and matched according to the actual installation space, and are not specifically limited here.

[0044] The settling plate includes a first settling plate 112 and a second settling plate 122. The first settling plate 112 is provided on the side of the first partition 110 facing the second partition 120. A first gap 113 exists between the first settling plate 112 and the second partition 120. The first settling plate 112 separates adjacent first through holes 111 and second through holes 121. It can be understood that the first settling plate 112 is fixedly connected to the lower surface of the first partition 110. The axial height of the first settling plate 112 is less than the axial spacing between the first partition 110 and the second partition 120, thus forming a first gap 113 between the end of the first settling plate 112 away from the first partition 110 and the upper surface of the second partition 120. The first through hole 111, the first gap 113, and the second through hole 121 are sequentially connected to form a second settling channel, as shown by the dashed broken line with arrows in Figure 2.

[0045] Optionally, a second settling plate 122 is provided on the side of the second partition 120 facing the first partition 110. A second gap 123 exists between the second settling plate 122 and the first partition 110, separating adjacent first through holes 111 and 121. Similarly, the second settling plate 122 is fixedly connected to the upper surface of the second partition 120. The axial height of the second settling plate 122 is less than the axial spacing between the first partition 110 and the second partition 120, thus forming a second gap 123 between the end of the second settling plate 122 away from the second partition 120 and the lower surface of the first partition 110. The second through hole 121, the second gap 123, and the first through hole 111 are sequentially connected to form a first settling channel, as shown by the solid broken line with arrows in Figure 2.

[0046] The first settling plate 112 and the second settling plate 122 extend the settling channel, providing better guidance for oil or gas. This allows for better separation and release of air bubbles carried in the return oil, resulting in fewer air bubbles in the return oil reaching the bottom of the oil sump after passing through the first baffle 110 and the second baffle 120. This minimizes the impact of air bubbles on the viscosity of the oil at the bottom of the sump, ensuring suitable oil viscosity and improving lubrication.

[0047] It should be noted that the axial heights of the first gap 113 and the second gap 123 can be the same or different. The number of the first setter plate 112 and the second setter plate 122 can be equal or unequal, and no specific limitation is made here. Of course, in some embodiments, only one of the first setter plate 112 and the second setter plate 122 can be provided, such as only the first setter plate 112 or only the second setter plate 122. Alternatively, in some embodiments, both the first setter plate 112 and the second setter plate 122 are omitted, as shown in Figure 3.

[0048] Optionally, the first partition 110 is provided with multiple first through holes 111. That is, the number of first through holes 111 is not limited, and can be one, two, three, four, five, six or more. The multiple first through holes 111 are evenly spaced in a ring. This can form multiple first and second settling channels, which improves the settling effect on the return oil.

[0049] Similarly, the second partition 120 is provided with multiple second through holes 121. That is, the number of second through holes 121 is unlimited; it can be one, two, three, four, five, six, or more. The multiple second through holes 121 are evenly spaced in a ring; the multiple first through holes 111 and the multiple second through holes 121 are staggered. This forms multiple first and second settling channels, and the multiple first and second settling channels are evenly distributed circumferentially, resulting in better settling effect and higher settling efficiency for the return oil.

[0050] Referring to Figure 4, optionally, the first partition 110 and the second partition 120 are arranged coaxially, with the inner diameter of the first partition 110 and the inner diameter of the second partition 120 being equal, and the outer diameter of the first partition 110 and the outer diameter of the second partition 120 being equal. Of course, this is not the only option; the shapes of the first partition 110 and the second partition 120 can be appropriately adjusted and matched according to the actual installation space, and no specific limitation is made here.

[0051] Optionally, at least one of the first partition 110 and the second partition 120 is provided with a mounting portion 132. The mounting portion 132 is configured to fix the first partition 110 and the second partition 120 in the oil bath. The mounting portion 132 may be provided only on the first partition 110 or on the second partition 120. Alternatively, the first partition 110 and the second partition 120 may each be provided with a mounting portion 132.

[0052] In this embodiment, the oil leveling device 100 further includes an annular wall 131, which is connected to the first partition 110 and the second partition 120 respectively. The annular wall 131 is connected around the central through hole 130 of the first partition 110 and the second partition 120. It is easy to understand that the first partition 110, the second partition 120 and the annular wall 131 can be fixedly connected separately or integrally formed, which is not specifically limited here.

[0053] In this embodiment, the annular wall 131 is provided with a mounting part 132. The mounting part 132 is a protrusion on the annular wall 131, and the protrusion is provided with a mounting hole 133. Fasteners such as bolts 134 (see Figure 6) can pass through the mounting hole 133 on the protrusion to fix the first partition 110 and the second partition 120 to other components in the oil tank.

[0054] Referring to Figure 5, optionally, the oil leveling device 100 further includes a third partition 140 coaxially arranged with the first partition 110 and the second partition 120. The third partition 140 has a third through hole 141, and the through holes on adjacent partitions are staggered. The third partition 140 can be located between the first partition 110 and the second partition 120, or on the side of the first partition 110 away from the second partition 120, or on the side of the second partition 120 away from the first partition 110. Optionally, a third leveling plate 142 can be provided on the third partition 140, or the third leveling plate 142 can be omitted.

[0055] The oil settling device 100 shown in Figure 5 includes three partitions with staggered through holes on adjacent partitions. In some other embodiments, the number of partitions is not limited and can be four, five, six or more, as long as the through holes on adjacent partitions are staggered.

[0056] Referring to Figure 6, this application embodiment also provides a compressor 200, including a housing 210, a compression structure, and the aforementioned oil stabilizing device 100, which is connected between the housing 210 and the compression structure. Optionally, the oil stabilizing device 100 is sealed to both the housing 210 and the compression structure, dividing the oil sump vertically to ensure that flowing media such as return oil only flow vertically through the stabilizing holes.

[0057] Optionally, the compression structure includes a cylinder head 220 and a muffler 230 disposed within the housing 210. An oil sump is provided at the bottom of the housing 210. The oil leveling device 100 can be connected to at least one of the housing 210, the cylinder head 220, and the muffler 230 to fix the oil leveling device 100. For example, the first partition 110 and the second partition 120 are respectively fitted onto the cylinder head 220, or the first partition 110 and the second partition 120 are respectively fitted onto the muffler 230.

[0058] It should be noted that Figure 6 shows the lower cylinder head 220 and the lower muffler 230. Optionally, the central through hole 130 of the partition is fitted around the outer periphery of the cylinder head 220 and is sealed to the cylinder head 220; or, the central through hole 130 of the partition is fitted around the outer periphery of the muffler 230 and is sealed to the muffler 230. The outer peripheral surface of the partition is sealed to the housing 210. In this embodiment, the inner peripheral surfaces of the central through holes 130 of the first partition 110 and the second partition 120 are respectively fitted around the outer periphery of the cylinder head 220 and are sealed to the cylinder head 220; or, the inner peripheral surfaces of the first partition 110 and the second partition 120 are respectively fitted around the outer periphery of the muffler 230 and are sealed to the muffler 230. The outer peripheral surfaces of the first partition 110 and the second partition 120 are respectively sealed to the housing 210.

[0059] A sealed connection prevents the return oil from bypassing the first baffle 110 and the second baffle 120 and directly reaching the bottom of the oil sump, thus improving the viscosity of the oil at the bottom. Optionally, the diameter of the central through hole 130 of the first baffle 110 and the second baffle 120 matches the outer diameter of the muffler 230. The first baffle 110 and the second baffle 120 are respectively fitted with the muffler 230 using a transition fit. The outer diameter of the first baffle 110 and the second baffle 120 matches the inner diameter of the housing 210. The first baffle 110 and the second baffle 120 are respectively fitted with the housing 210 using a transition fit. The mounting part 132 is fixedly connected to the muffler 230 by bolts.

[0060] Optionally, the cylinder head 220 includes a connected flange portion 221 and an axial extension portion 222. The inner circumferential surfaces of the first partition plate 110 and the second partition plate 120 are respectively fitted onto the flange portion 221 and sealed to it. The first partition plate 110 and the second partition plate 120 are respectively fitted onto the outer circumference of the flange portion 221 and transition-fitted with it. Simultaneously, the first partition plate 110 and the second partition plate 120 are respectively transition-fitted with the inner wall of the housing 210. This transition fit eliminates gaps after assembly, resulting in better sealing and ensuring that all return oil enters the bottom of the oil sump through the settling holes on the first partition plate 110 and the second partition plate 120.

[0061] Of course, in other embodiments, the first partition 110 and the second partition 120 can also be fixed to other positions or other components of the housing 210. The fixing method is not limited to bolt fixing, riveting, snap-fitting, welding or bonding, etc., as long as the first partition 110 and the second partition 120 can be fixed. No specific limitation is made here. Depending on the actual installation space and installation position, the installation part 132 can also be adjusted or omitted accordingly.

[0062] It should be noted that, as shown in Figure 6, the oil conditioning device 100 is located near the oil suction port 201 of the compression structure. The oil sump is divided into an upper oil sump and a bottom oil sump. The oil suction port 201 is located in the bottom oil sump. Area U in Figure 6 is the upper oil sump, also called the pre-conditioning oil sump. Area M is the middle conditioning oil sump. Area D is the bottom oil sump, also called the post-conditioning oil sump. Its conditioning principle is as follows:

[0063] When compressor 200 is running, gaseous refrigerant carrying some refrigeration oil accumulates in the upper cavity of compressor 200. After accumulating to a certain amount, it falls back into the oil sump located at the bottom of compressor 200. During the fall, the returned oil, under the action of gravity, falls through the first through-hole 111 on the first partition 110 into the second partition 120, where it undergoes preliminary settling. Air bubbles in the returned oil rise and are discharged upwards through the first through-hole 111. After preliminary settling, the returned oil continues to flow through the first gap 113, enters the adjacent second through-hole 121, and then flows into the bottom oil sump. The returned oil entering the bottom oil sump may still carry a small number of air bubbles. These small air bubbles will rise due to buoyancy, gather to form larger air bubbles, rise through the second through-hole 121, float along the second gap 123 to the adjacent first through-hole 111, and are discharged upwards to the upper oil sump to continue participating in the refrigeration cycle. The liquid flow path in the returned oil is mainly shown by the solid broken line with arrows in Figure 2. The flow path of air bubbles in the return oil is mainly shown by the dashed broken line with arrows in Figure 2.

[0064] Of course, the oil leveling device 100 can be completely submerged in the oil sump, partially submerged, or positioned above the oil level in the sump, as long as the baffle plate is higher than the oil suction port 201. In this embodiment, the second baffle plate 120 is positioned higher than the oil suction port 201. Optionally, the installation height of the oil leveling device 100 can be located at the safe oil level of the compressor 200, which can achieve a good oil leveling effect.

[0065] The oil stabilization device 100 is not only applicable to the compressor 200, but also to other equipment with an oil sump. It plays a role in stabilizing the oil, ensuring that the oil viscosity does not decrease, improving the oil lubrication effect, reducing abnormal wear and failure of equipment, improving operational stability and reliability, and extending service life.

[0066] In summary, the oil leveling device 100 and compressor 200 provided in this application embodiment have the following beneficial effects, including:

[0067] The oil conditioning device 100 provided in this embodiment of the application uses a first partition 110 and a second partition 120 spaced axially apart. The first partition 110 is relatively close to the upper part of the oil sump, and the second partition 120 is relatively close to the bottom of the oil sump. Return oil may contain refrigerant air bubbles. After the return oil carrying air bubbles passes through the first partition 110 and the second partition 120 for conditioning, the number of air bubbles in the return oil is reduced, thereby preventing the viscosity of the oil in the bottom oil sump from decreasing due to the addition of air bubbles. This prevents the return oil carrying refrigerant air bubbles from directly mixing into the bottom oil sump, preventing a decrease in the viscosity of the oil at the oil suction port 201 in the bottom oil sump, thus ensuring the viscosity quality of the oil at the oil suction port 201 and improving the lubrication effect on the compression structure.

[0068] The compressor 200 provided in this application embodiment includes the above-mentioned oil conditioning device 100, which can prevent the oil viscosity at the oil suction port 201 in the oil sump of the compressor 200 from decreasing, ensure the quality of the oil viscosity at the oil suction port 201, improve the lubrication effect on the compression structure, thereby improving the operating stability and reliability of the compressor 200, reducing the risk of abnormal wear of the compressor 200, and extending the service life of the compressor 200. Industrial applicability

[0069] In summary, the embodiments of this application provide an oil conditioning device and a compressor, which prevents the return oil with steam drum from directly mixing into the bottom oil sump and reducing the viscosity of the oil at the bottom, thereby improving the oil lubrication effect and the reliability of the compressor.

Claims

1. An oil liquid static eliminator fixed in an oil pool, characterized in that, The oil conditioning device includes: At least two partitions are stacked and connected at intervals. A central through hole (130) is provided in the center of each partition. Multiple settling holes are arranged at intervals around the central through hole (130) on each partition. The settling holes on two adjacent partitions are staggered and connected.

2. The oil flow straightening device according to claim 1, wherein A settling plate is provided between at least one pair of vertically adjacent settling holes. The settling plate is fixed longitudinally to one of the two adjacent partitions and leaves a gap between it and the other partition.

3. The oil flow straightening device according to claim 2, wherein The settling holes on two adjacent partitions are alternately distributed in the circumferential direction.

4. The oil flow straightening device according to claim 3, wherein Multiple settling plates are alternately fixed to two adjacent partition plates.

5. The oil flow straightening device according to claim 4, wherein The end of the settling plate is spaced apart from the inner or outer periphery of the partition plate.

6. The oil flow straightening device according to any one of claims 1 to 5, characterized in that The partition includes a first partition (110) and a second partition (120); the first partition (110) and the second partition (120) are coaxially arranged and have a circular structure. The central through hole (130) of the first partition (110) and the central through hole (130) of the second partition (120) are coaxially arranged and have the same shape and size. The outer diameter of the first partition (110) and the outer diameter of the second partition (120) are equal.

7. The oil flow straightening device according to claim 6, wherein At least one of the first partition (110) and the second partition (120) has a mounting portion (132) on the inner periphery of its central through hole (130); Alternatively, the oil leveling device may further include an annular wall (131), which is connected to the first partition (110) and the second partition (120) respectively; the annular wall (131) is provided with the mounting part (132).

8. A compressor characterized by, It includes a housing (210), a compression structure, and an oil stabilizing device as claimed in any one of claims 1 to 7, the oil stabilizing device being connected between the housing (210) and the compression structure.

9. The compressor of claim 8, wherein, The compression structure includes a cylinder head (220) and a muffler (230) disposed within the housing (210); The central through hole (130) of the partition is fitted around the cylinder head (220) and is sealed to the cylinder head (220); or, the central through hole (130) of the partition is fitted around the muffler (230) and is sealed to the muffler (230); the outer peripheral surface of the partition is sealed to the housing (210).

10. The compressor of claim 8 or 9, wherein The position of the partition is higher than the oil suction port (201) of the compression structure.

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