An oil distribution structure, compressor

Abstract

The application provides an oil separation structure and a compressor, wherein the oil separation structure comprises a static disc and a dynamic disc, an exhaust cavity is formed between the static disc and the dynamic disc, an exhaust port is arranged on the static disc and is communicated with the exhaust cavity, a first support and a cross slip ring are arranged on the side of the dynamic disc away from the static disc, a first cavity is enclosed among the dynamic disc, the first support and the cross slip ring, a first recess is arranged at the bottom of the dynamic disc, one end of the first recess is communicated with the exhaust cavity, and the other end of the first recess is communicated with the first cavity, the oil-gas mixture in the exhaust cavity can flow into the first recess, gas-liquid separation is performed in the first recess, the separated gas is discharged through the exhaust port, and the liquid flows into the first cavity. According to the application, the lubricating oil of the compressor in the prior art can be carried by the high-speed flowing gaseous refrigerant, and finally discharged from the compressor through the compressor exhaust pipe, so that the oil discharge rate of the compressor is large, and the energy efficiency of the compressor is improved.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, specifically relating to an oil separator structure and a compressor. Background Technology

[0002] technology:

[0003] The oil circulation inside a scroll compressor can generally be divided into two parts: oil supply and oil return. During oil supply, the oil pump in the bottom oil sump provides power to deliver lubricating oil through the crankshaft passage to the oil sump in the upper bracket. Part of the oil will lubricate components such as bearings and cross-slip rings, while the other part will be drawn into the compressor's moving and stationary plates for lubrication. During oil return, there are two main aspects. On the one hand, after lubricating the moving and stationary scroll plates, the oil is discharged into the compressor cavity with the high-pressure gas and then returns to the bottom oil sump by gas force and gravity. On the other hand, excess lubricating oil in the upper bracket oil sump will be discharged directly or guided to the bottom oil sump of the compressor. The oil supply and return of the oil sump form a complete cycle.

[0004] After some of the oil has finished lubricating the moving and stationary scroll plates, it will be discharged into the compressor cavity with the high-pressure gas, and then return to the bottom oil sump by gas force and gravity. However, during this process, most of the lubricating oil will be carried away by the high-speed flowing gaseous refrigerant and finally discharged from the compressor through the compressor exhaust pipe, resulting in a higher oil discharge rate of the compressor.

[0005] Because the lubricating oil in existing compressors is carried away by the high-speed flowing gaseous refrigerant and eventually discharged from the compressor through the compressor exhaust pipe, resulting in technical problems such as increased oil discharge rate, reduced oil storage inside the compressor, and insufficient oil supply, this invention studies and designs an oil separator structure and a compressor. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art where the lubricating oil of the compressor is carried away by the high-speed flowing gaseous refrigerant and finally discharged from the compressor through the compressor exhaust pipe, resulting in a high oil discharge rate of the compressor, thereby providing an oil separation structure and a compressor.

[0007] To address the aforementioned problems, this invention provides an oil separator structure, comprising a stationary disc and a moving disc. An exhaust chamber is formed between the stationary disc and the moving disc. An exhaust port is provided on the stationary disc and communicates with the exhaust chamber. A first support and a cross-shaped slip ring are provided on the side of the moving disc facing away from the stationary disc. A first cavity is enclosed between the moving disc, the first support, and the cross-shaped slip ring. A first groove is provided at the bottom of the moving disc. One end of the first groove communicates with the exhaust chamber, and the other end communicates with the first cavity. An oil-gas mixture in the exhaust chamber can flow into the first groove and undergo gas-liquid separation in the first groove. The separated gas is discharged through the exhaust port, and the liquid flows into the first cavity.

[0008] In some embodiments, the first groove is funnel-shaped, and the diameter of the first groove gradually decreases along the direction of the exhaust chamber toward the side of the moving plate opposite to the stationary plate, and the first groove is opposite to the exhaust port.

[0009] In some embodiments, the moving disk includes a base plate and a scroll, the scroll being disposed on the base plate, the first groove being formed on the base plate, and a flow channel being provided inside the base plate, one end of the flow channel being connected to the first groove and the other end being connected to the first cavity.

[0010] In some embodiments, a plurality of second grooves are uniformly provided on the inner sidewall of the first groove along the circumference of the moving disc. The second grooves extend along the depth direction of the first groove, and one end of the second groove is connected to the exhaust chamber.

[0011] In some embodiments, the bottom of the second groove is provided with an opening that communicates with the first cavity, and the opening is positioned close to the first support relative to the stationary plate.

[0012] In some embodiments, the oil separator structure further includes a crankshaft connected to the side of the moving disc facing away from the stationary disc, the first groove penetrating the bottom of the moving disc, and the first groove being opposite to the crankshaft.

[0013] In some embodiments, a second cavity is formed between the bottom of the crankshaft and the moving disc, and the first groove communicates with the second cavity so that the oil separated in the first groove flows into the second cavity.

[0014] In some embodiments, one end of the crankshaft is connected to the moving disc, and the other end is connected to a pump body. An oil delivery channel is provided inside the crankshaft. The pump body is used to draw oil from the compressor oil sump and deliver it to the oil delivery channel. The oil delivery channel can deliver lubricating oil between the moving disc and the crankshaft.

[0015] In some embodiments, the crankshaft has an eccentric portion that is close to the moving disc relative to the pump body, and the eccentric portion is provided with an oil outlet channel that is connected to the oil delivery channel.

[0016] The present invention also provides a compressor comprising the oil separator structure described in any of the preceding claims.

[0017] The oil separator structure and compressor provided by this invention have the following beneficial effects:

[0018] The first groove effectively collects oil at the pump body's exhaust chamber, and under the action of pressure difference, the separated liquid flows into the first cavity, thereby lubricating the first support and the cross slip ring. Oil returns inside the moving plate, reducing the amount of oil trapped in the exhaust from both the moving and stationary plates, thus reducing the compressor's oil output. The oil accumulated in the oil separator is introduced into the cross slip ring area, increasing lubrication in that area and effectively preventing excessive oil return from the exhaust, which could lead to insufficient oil supply and a large amount of lubricating oil trapped in the exhaust. This reduces the compressor's oil output rate. Furthermore, the first cavity also serves as an oil storage area; when the compressor restarts after a shutdown, the oil in the first cavity can quickly lubricate components such as the first support and the cross slip ring, improving the compressor's efficiency and lifespan, and reducing compressor damage. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a schematic diagram of the compressor structure when the oil separator structure of this invention is applied to the compressor;

[0022] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0023] Figure 3This is a longitudinal sectional view of the moving disk in the oil separator structure according to an embodiment of the present invention;

[0024] Figure 4 This is a top view of the moving disc in the oil separator structure according to an embodiment of the present invention;

[0025] Figure 5 This is a bottom view of the moving disc in the oil separator structure according to an embodiment of the present invention;

[0026] Figure 6 This is a front view of the first through hole in the oil separator structure according to an embodiment of the present invention;

[0027] Figure 7 This is a back view of the first through hole in the oil separator structure according to an embodiment of the present invention;

[0028] Figure 8 This is a first-view perspective perspective view of the first through hole in the oil separator structure according to an embodiment of the present invention;

[0029] Figure 9 This is a second-view perspective perspective view of the first through hole in the oil separator structure according to an embodiment of the present invention.

[0030] The reference numerals in the attached figures are as follows:

[0031] 1. Intake pipe; 2. Housing; 3. Stationary disc; 4. Moving disc; 5. First bracket; 6. First bearing; 7. Second bearing; 8. Crankshaft; 9. Pump body; 10. Second bracket; 11. Third bearing; 12. Exhaust pipe; 13. Cross slip ring; 14. First groove; 15. Oil outlet channel; 16. Second groove; 17. Opening. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0038] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0039] See also Figures 1 to 9 As shown in the embodiment of the present invention, an oil separator structure is provided, including a stationary disk 3 and a moving disk 4. An exhaust chamber is formed between the stationary disk 3 and the moving disk 4. An exhaust port is provided on the stationary disk 3 and is connected to the exhaust chamber. A first support 5 and a cross slip ring 13 are provided on the side of the moving disk 4 facing away from the stationary disk 3. A first cavity is enclosed between the moving disk 4, the first support 5 and the cross slip ring 13. A first groove 14 is provided at the bottom of the moving disk 4. One end of the first groove 14 is connected to the exhaust chamber and the other end is connected to the first cavity. The oil-gas mixture in the exhaust chamber can flow into the first groove 14 and undergo gas-liquid separation in the first groove 14. The separated gas is discharged through the exhaust port and the liquid flows into the first cavity. In this technical solution, the first groove 14 effectively collects oil at the pump body exhaust chamber, and under the action of pressure difference, the separated liquid flows into the first cavity, thereby lubricating the first support 5 and the cross slip ring 13. The oil returns inside the moving plate 4, and by reducing the amount of oil clamped in the exhaust of the moving and stationary plates 3, the oil discharge of the compressor is reduced. The oil accumulated in the oil separator is introduced into the cross slip ring area to increase the lubrication of this area, effectively preventing the exhaust from carrying a large amount of lubricating oil, which would cause the compressor to discharge too much oil during the oil return process, resulting in insufficient oil storage in the compressor and thus insufficient oil supply to the compressor, reducing the compressor's oil discharge rate. In addition, the first cavity also has an oil storage function. When the compressor is restarted after being stopped, the oil in the first cavity can quickly supply oil lubrication to components such as the first support 5 and the cross slip ring 13, improving the compressor's working efficiency and lifespan, and reducing compressor damage.

[0040] In this invention, when the compressor is running, the pumping power of the pump body 9 and the centrifugal force generated by the crankshaft 8 drive the lubricating oil in the oil sump at the bottom of the compressor upward. Then, through the oil delivery channel and oil outlet channel 15 inside the crankshaft 8, the oil is delivered to the cavity composed of components such as the moving plate 4, the first support 5, and the crankshaft 8, i.e., the high-pressure oil sump of the first support 5. Part of the lubricating oil in the high-pressure oil sump is delivered to the pump body to lubricate the moving plate 4 and the stationary plate 3.

[0041] Normally, when the moving disc 4 and the stationary disc 3 complete a compression cycle, the compressed refrigerant and lubricating oil are concentrated in the exhaust chamber. If oil return is not performed, the oil and refrigerant will be mixed and discharged from the pump body. By setting a first groove 14 at the corresponding position of the exhaust chamber of the moving disc 4 and opening a second groove 16 on it, the perforated groove structure can effectively collect lubricating oil. At the same time, under the action of high pressure in the exhaust chamber, the pressure difference pushes the oil in the first groove 14 to flow into the cavity composed of the moving disc 4, the first bearing 6, and the crankshaft 8, as well as the cavity composed of the cross slip ring 13, the moving disc 4, and the first support 5. After lubricating the first bearing 6, this part of the returned oil is mixed with the oil supplied from the crankshaft 8 in the high-pressure oil pool of the first support 5, and then supplies oil to the pump body. In this way, the closed loop of oil supply and return in the pump body flow path is completed.

[0042] In some embodiments, the first groove 14 is funnel-shaped, and its diameter gradually decreases along the direction from the exhaust chamber toward the moving plate 4 to the side opposite to the stationary plate 3. The first groove 14 is also opposite to the exhaust port. In this technical solution, the funnel-shaped first groove 14, with its gradually decreasing diameter along the direction from the exhaust chamber toward the moving plate 4 to the side opposite to the stationary plate 3, increases the contact area between the oil-gas mixture and the inner wall of the first groove 14, making collisions easier and thus facilitating oil-gas separation. Furthermore, the funnel-shaped structure allows the refrigerant to vortex within the first through-hole, enabling repeated collisions and improving oil-gas separation efficiency. The funnel-shaped opening, wider at the top and narrower at the bottom, also helps prevent backflow to some extent.

[0043] In some embodiments, the moving disk 4 includes a base plate and a scroll. The scroll is disposed on the base plate, and the first groove 14 is formed on the base plate. A flow channel is also provided in the base plate, with one end of the flow channel connected to the first groove 14 and the other end connected to the first cavity. In this technical solution, the oil separated in the first groove 14 is transported to the first cavity through the flow channel, thereby lubricating the first support 5 and the cross slip ring 13. The first cavity also has an oil storage function. When the compressor is restarted after being stopped, the oil in the first cavity can quickly supply oil lubrication to components such as the first support 5 and the cross slip ring 13, improving the working efficiency and life of the compressor and reducing compressor damage.

[0044] In some embodiments, a plurality of second grooves 16 are uniformly arranged on the inner sidewall of the first groove 14 along the circumference of the moving disk 4. The second grooves 16 extend along the depth direction of the first groove 14, and one end of the second groove 16 is connected to the exhaust chamber. In this technical solution, the cross-section of the first groove 14 is circular, the second grooves 16 extend along the depth direction of the first groove 14, and one end of the second groove 16 is connected to the exhaust chamber. That is, the length direction of the second groove 16 extends along the depth direction of the first groove 14, and the end of the second groove 16 is connected to the exhaust chamber, so that the refrigerant in the exhaust chamber can flow into the second groove 16. Through the first groove 14 and the second groove 16, some of the refrigerant in a certain area will collide into the groove, and the refrigerant and the refrigeration oil will separate due to the velocity difference, further increasing the contact area between the refrigerant and the first groove 14 and improving the oil separation efficiency.

[0045] In some implementations, see reference Figures 3 to 9 As shown, the bottom of the second groove 16 is provided with an opening 17, which communicates with the first cavity. The opening 17 is positioned relative to the stationary plate 3 and close to the first support 5. Preferably, this technical solution has four second grooves 16, and correspondingly, four openings 17. The openings 17, positioned relative to the stationary plate 3 and close to the first support 5, allow the oil separated in the first groove to flow quickly into the first cavity, preventing lubricating oil from accumulating in the first groove 14 and being carried away by the refrigerant again, thereby reducing the compressor's oil discharge rate.

[0046] In some embodiments, the oil separator structure further includes a crankshaft 8, which is connected to the side of the moving disk 4 facing away from the stationary disk 3. The first groove 14 penetrates the bottom of the moving disk 4 and is opposite to the crankshaft 8. In this technical solution, the first groove 14 penetrates the bottom of the moving disk 4 and is opposite to the crankshaft 8. This allows the oil flowing into the first groove 14 to lubricate the crankshaft 8 and the moving disk 4, preventing wear between the bottom of the crankshaft 8 and the moving disk 4, and improving the compressor's energy efficiency.

[0047] In some embodiments, a second cavity is formed between the bottom of the crankshaft 8 and the moving disc 4, and the first groove 14 is connected to the second cavity so that the oil separated in the first groove 14 flows into the second cavity.

[0048] Technically, the pressure is highest at the exhaust chamber inside the compressor. The second chamber is connected through the first groove 14, and there is enough pressure difference to generate power to return oil, so that the lubricating oil in the exhaust chamber flows downward to participate in the circulation, while the gaseous refrigerant is discharged upward to achieve oil-gas separation.

[0049] In some embodiments, one end of the crankshaft 8 is connected to the moving disk, and the other end is connected to a pump body 9. An oil delivery channel is provided inside the crankshaft 8. The pump body 9 is used to draw oil from the compressor oil sump and deliver it to the oil delivery channel. The oil delivery channel can deliver lubricating oil between the moving disk 4 and the crankshaft 8. In this technical solution, when the compressor is running, the pumping power of the pump body 9 drives the lubricating oil in the oil sump at the bottom of the compressor upwards. Then, through the oil delivery channel inside the crankshaft 8, the oil is delivered to the cavity composed of the moving disk 4, the first support 5, the crankshaft 8, and other components, i.e., the high-pressure oil sump of the first support 5. Part of the lubricating oil in the high-pressure oil sump is delivered to the pump body for lubrication of the moving disk 4 and the stationary disk 3.

[0050] In some implementations, see reference Figure 1 and Figure 2 As shown, the crankshaft 8 has an eccentric portion, which is close to the moving plate 4 relative to the pump body 9. An oil outlet channel 15 is provided on the eccentric portion, and the oil outlet channel 15 is connected to the oil delivery channel. Preferably, in this technical solution, the oil outlet channel 15 is located at the lower end of the eccentric portion, that is, the end of the eccentric portion facing away from the moving plate 4. By opening a hole at the lower end of the crankshaft eccentric portion, the centrifugal force generated during crankshaft rotation can be used to provide additional power for oil supply, preventing insufficient oil supply.

[0051] This invention, on the one hand, utilizes centrifugal force by opening a special oil supply channel on the crankshaft to make the oil supply smoother and prevent the problem of insufficient oil supply. On the other hand, it solves the problem of oil discharge after the pump body has finished compressing by separating oil in the exhaust chamber, and the overall effect is to reduce the amount of oil discharged by the compressor.

[0052] This invention features internal oil return in the moving and stationary discs. By reducing the amount of oil clamped in the exhaust of the moving and stationary discs, it reduces the amount of oil discharged by the compressor. Furthermore, an oil inlet channel is added to guide the oil accumulated in the high-pressure zone of the oil separator structure into the cross-slip ring area. This increases lubrication in the high-pressure zone, thus increasing lubrication in the intermediate-pressure zone. An opening at the lower end of the crankshaft eccentric portion allows the centrifugal force generated during crankshaft rotation to provide additional power for oil supply, preventing insufficient oil supply. The base plate at the exhaust of the moving scroll disc has an opening, which is the first groove 14. The opening is funnel-shaped, wider at the top and narrower at the bottom, and has a groove inside. This hole structure effectively collects oil at the pump body exhaust chamber and, under the action of pressure difference, returns the oil to the crankshaft eccentric cavity and the cross-slip ring area for lubrication. Excess lubricating oil flows along the crankshaft oil supply path and converges in the high-pressure oil sump of the upper support, participating in the circulation again. The key to achieving the above functions with this hole structure lies in two points: first, the special structure is conducive to collecting and discharging lubricating oil; second, the pressure is greatest in the exhaust chamber inside the compressor. The cavity of the eccentric part of the moving plate is connected through the hole, and there is enough pressure difference to generate power to return oil. Ultimately, this structure causes the lubricating oil in the exhaust chamber to flow downward to participate in the circulation, while the gaseous refrigerant is discharged upward to achieve oil-gas separation.

[0053] The crankshaft has an oil pump supply channel at the lower end of the eccentric part. As the crankshaft rotates, the channel structure generates centrifugal force, which has the effect of drawing the lubricating oil in the oil sump upward. Therefore, it can enhance the oil supply effect to a certain extent and reduce the burden on the oil pump.

[0054] See also Figure 1 As shown, the compressor of the present invention is a scroll compressor, which includes an intake pipe 1, a housing 2, a moving disc 4, a stationary disc 3, a first support 5, a first bearing 6, a crankshaft 8, a second bearing 7, a pump body 9, a second support 10, a third bearing 11, an exhaust pipe 12, and a cross slip ring 13. An oil sump is provided at the bottom of the housing 2. Along the direction from the bottom of the housing 2 toward the top, the pump body 9, the second support 10, the crankshaft 8, the first support 5, the moving disc 4, and the stationary disc 3 are arranged in sequence. The first bearing 6 is located between the crankshaft 8 and the moving disc 4, the second bearing 7 is located between the crankshaft 8 and the first support 5, and the third bearing 11 is located between the second support 10 and the crankshaft 8. The exhaust pipe 12 is located on the side wall of the housing 2, the intake pipe 1 is located at the top of the housing 2, and the cross slip ring 13 is located between the first support 5 and the moving disc 4. Its structure is the same as that of the existing scroll compressor.

[0055] The present invention also provides a compressor comprising the oil separator structure described in any of the preceding claims.

[0056] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An oil fraction, characterized in that, The device includes a stationary disk (3) and a moving disk (4). An exhaust chamber is formed between the stationary disk (3) and the moving disk (4). An exhaust port is provided on the stationary disk (3) and the exhaust port is connected to the exhaust chamber. A first support (5) and a cross slip ring (13) are provided on the side of the moving disk (4) facing away from the stationary disk (3). A first cavity is enclosed between the moving disk (4), the first support (5) and the cross slip ring (13). A first groove (14) is provided at the bottom of the moving disk (4). One end of the first groove (14) is connected to the exhaust chamber and the other end is connected to the first cavity. The oil-gas mixture in the exhaust chamber can flow into the first groove (14) and undergo gas-liquid separation in the first groove (14). The separated gas is discharged through the exhaust port and the liquid flows into the first cavity. Along the direction of the exhaust chamber toward the moving plate (4) and away from the stationary plate (3), the diameter of the first groove (14) gradually decreases, and the first groove (14) is opposite to the exhaust port; Along the circumference of the moving disk (4), a plurality of second grooves (16) are uniformly arranged on the inner sidewall of the first groove (14). The second grooves (16) extend along the depth direction of the first groove (14), and one end of the second groove (16) is connected to the exhaust chamber; the refrigerant can enter the first groove (14) and the second groove (16).

2. The oil division structure according to claim 1, characterized by The moving disk (4) includes a base plate and a scroll. The scroll is disposed on the base plate. The first groove (14) is formed on the base plate. A flow channel is also provided in the base plate. One end of the flow channel is connected to the first groove (14), and the other end is connected to the first cavity.

3. The oil division structure according to claim 1, wherein The bottom of the second groove (16) is provided with an opening (17), which is connected to the first cavity, and the opening (17) is located near the first support (5) relative to the stationary plate (3).

4. The oil separation structure according to claim 1, characterized in that, The oil separator structure also includes a crankshaft (8), which is connected to the side of the moving disk (4) facing away from the stationary disk (3). The first groove (14) penetrates the bottom of the moving disk (4) and is opposite to the crankshaft (8).

5. The oil division structure according to claim 4, characterized by A second cavity is formed between the bottom of the crankshaft (8) and the moving disc (4), and the first groove (14) is connected to the second cavity so that the oil separated in the first groove (14) flows into the second cavity.

6. The oil division structure of claim 4, wherein One end of the crankshaft (8) is connected to the moving plate, and the other end is connected to the pump body (9). An oil delivery channel is provided inside the crankshaft (8). The pump body (9) is used to draw oil from the compressor oil sump and deliver it to the oil delivery channel. The oil delivery channel can deliver lubricating oil between the moving plate (4) and the crankshaft (8).

7. The oil division structure according to claim 6, wherein The crankshaft (8) has an eccentric part that is close to the moving plate (4) relative to the pump body (9). An oil outlet channel (15) is provided on the eccentric part and is connected to the oil delivery channel.

8. A compressor characterized by, The oil fraction structure according to any one of claims 1 to 7. The oil fraction structure according to any one of claims 1 to 7.

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