compressor

Abstract

This application provides a compressor, including a stationary scroll, a moving scroll, and an exhaust cover. A compression chamber is at least partially located between the stationary scroll and the moving scroll, and a high-pressure chamber is at least partially located between the stationary scroll and the exhaust cover. The compression chamber and the high-pressure chamber are in communication. The exhaust cover has a first oil passage that communicates with the high-pressure chamber. The compressor includes a bearing housing and a rotating shaft. The bearing housing has a second oil passage, and the first oil passage and the second oil passage are in communication. The compressor includes an axial flow pump connected to the rotating shaft. The inlet of the axial flow pump is in communication with the outlet of the second oil passage. The rotating shaft has a central oil passage and is connected to the moving scroll. The moving scroll has a connecting groove, and at least one end of the rotating shaft is located within the connecting groove. The outlet of the axial flow pump is in communication with the central oil passage, and the central oil passage is in communication with the connecting groove. In this application, the axial flow pump can guide oil into the connecting groove, that is, into the position where the rotating shaft and the moving scroll are connected, thereby improving the lubrication effect.

Description

Technical Field

[0001] This application relates to a compressor, and more particularly to an axial flow pump for the compressor. Background Technology

[0002] The main components of a compressor include a stationary scroll, a moving scroll, and an exhaust cover. There is a compression chamber between the stationary scroll and the moving scroll. The two mesh to compress the refrigerant gas. After compression, the refrigerant is discharged into the high-pressure chamber between the stationary scroll and the exhaust cover. After oil-gas separation, the gas is discharged, and the oil returns from the high-pressure chamber to the low-pressure chamber of the compressor.

[0003] In related technologies, the connection between the rotating shaft and the moving scroll is a key area requiring lubrication. To ensure sufficient oil supply for this location, oil passages are created on the exhaust cover and bearing housing to guide oil from the high-pressure chamber into the cavity between the moving scroll and the bearing housing, thus lubricating this area. However, because the oil passages only guide oil into the cavity between the moving scroll and the bearing housing, the oil cannot accurately flow to the aforementioned location, resulting in poor lubrication. Summary of the Invention

[0004] The purpose of this application is to provide a compressor with better lubrication performance.

[0005] This application provides a compressor, characterized in that it includes a stationary scroll, a moving scroll, and an exhaust cover, the compressor having a compression chamber and a high-pressure chamber, the compression chamber being at least partially located between the stationary scroll and the moving scroll, the high-pressure chamber being at least partially located between the stationary scroll and the exhaust cover, and the compression chamber and the high-pressure chamber being able to communicate;

[0006] The exhaust cover has a first oil passage, which is connected to the high-pressure chamber; the compressor includes a bearing housing and a rotating shaft, the bearing housing has a second oil passage, and the first oil passage and the second oil passage are connected.

[0007] The compressor includes an axial flow pump connected to the rotating shaft. The inlet of the axial flow pump is connected to the outlet of the second oil passage. The rotating shaft has a central oil passage and is connected to the moving scroll. The moving scroll has a connecting groove, and at least one end of the rotating shaft is located within the connecting groove. The outlet of the axial flow pump is connected to the central oil passage, and the central oil passage is connected to the connecting groove.

[0008] In this application, the exhaust cover has a first oil passage that communicates with the high-pressure chamber; the bearing housing has a second oil passage that communicates with the first oil passage; the compressor includes an axial flow pump that communicates with the outlet of the second oil passage; the rotating shaft has a central oil passage; the moving scroll has a connecting groove; and at least one end of the rotating shaft is located within the connecting groove; the outlet of the axial flow pump communicates with the central oil passage, which in turn communicates with the connecting groove; the axial flow pump can guide oil into the connecting groove, that is, into the position where the rotating shaft and the moving scroll are connected, thereby improving the lubrication effect. Attached Figure Description

[0009] Figure 1 This is a perspective view of the motor in this application;

[0010] Figure 2 This is a cross-sectional view of the motor in this application. Figure 1 ;

[0011] Figure 3 This is a cross-sectional view of the motor in this application. Figure 2 ;

[0012] Figure 4 This is a cross-sectional view of the motor in this application. Figure 3 ;

[0013] Figure 5 for Figure 4 Enlarged view of circle A in the middle;

[0014] Figure 6 This application provides a three-dimensional configuration for the rotation shaft and axial flow pump. Figure 1 ;

[0015] Figure 7 This application provides a three-dimensional configuration for the rotation shaft and axial flow pump. Figure 2 ;

[0016] Figure 8 This is an exploded view of the connection between the rotating shaft and the axial flow pump in this application;

[0017] Figure 9 This is a cross-sectional view of the rotating shaft and the axial flow pump in this application.

[0018] Figure 10 This is a cutaway view of the rotating shaft and axial flow pump in this application. Detailed Implementation

[0019] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0021] In related technologies, during the compression process of refrigerant gas entering the compressor and flowing into the compression chamber between the stationary and moving scrolls, the refrigerant gas mixes with the lubricating oil used on various components within the compressor. Therefore, before the compressed refrigerant gas and oil mixture is discharged from the compressor, oil-gas separation is required. The separated oil is then guided back to the low-pressure chamber of the compressor for reuse. When guiding the oil, oil is directed through oil passages located on the exhaust cover and bearing housing into the cavity between the bearing housing and the moving scroll. Since the shaft is connected to the bearing housing via bearings, and the end of the shaft is also connected to the moving scroll, these are key lubrication points on the compressor. Although guiding the oil back to the cavity between the bearing housing and the moving scroll achieves a certain degree of lubrication, the oil cannot flow directly to these two locations within the compressor due to gravity, resulting in less than ideal lubrication.

[0022] This application provides a compressor, such as Figures 1 to 10 As shown, its specific structure includes a stationary scroll 1, a moving scroll 2, and an exhaust cover 3. The compressor has a compression chamber 4 and a high-pressure chamber 5. The compression chamber 4 is at least partially located between the stationary scroll 1 and the moving scroll 2, and the high-pressure chamber 5 is at least partially located between the stationary scroll 1 and the exhaust cover 3. The compression chamber 4 and the high-pressure chamber 5 are in communication. The exhaust cover 3 has a first oil passage 301, which is in communication with the high-pressure chamber 5. The compressor includes a bearing housing 6 and a rotating shaft 7. The bearing housing 6 has a second oil passage 602, which is in communication with the first oil passage 301. The compressor includes an axial flow pump 8, which is connected to the rotating shaft 7. The inlet of the axial flow pump 8 is in communication with the outlet of the second oil passage 602. The rotating shaft 7 has a central oil passage 701 and is connected to the moving scroll 2. The moving scroll 2 has a connecting groove 201, and at least one end of the rotating shaft 7 is located in the connecting groove 201. The outlet of the axial flow pump 8 is in communication with the central oil passage 701, and the central oil passage 701 is in communication with the connecting groove 201.

[0023] After the refrigerant gas is compressed by the stationary scroll 1 and the moving scroll 2 of the compressor, the oil-gas mixture is discharged from the compression chamber 4 into the high-pressure chamber 5. After oil-gas separation, the oil is guided back from the first oil passage 301 in the exhaust cover 3 and the second oil passage 602 in the bearing housing 6 to the space between the bearing housing 6 and the moving scroll 2. After the oil flows out from the outlet of the second oil passage 602, the axial flow pump 8 guides the oil back into the central oil passage 701, and then from the central oil passage 701 into the connecting groove 201. At least one end of the rotating shaft 7 is located in the connecting groove 201 to achieve connection with the moving scroll 2. The oil is guided into the connecting groove 201 to achieve lubrication of the connection position between the rotating shaft 7 and the moving scroll 2. The axial flow pump 8 provides power for the flow of oil, enabling the oil to be accurately guided to the connection position between the rotating shaft 7 and the moving scroll 2 through the cooperation and guidance of the first oil passage 301, the second oil passage 602 and the central oil passage 701. Compared with related technologies, the amount of oil obtained at the connection position between the rotating shaft 7 and the moving scroll 2 is much greater than that of the return oil lubrication method in related technologies, thereby greatly improving the lubrication effect.

[0024] like Figures 2 to 5 As shown, in one embodiment, the bearing housing 6 has a mounting cavity 601, the rotating shaft 7 is at least partially located in the mounting cavity 601, the axial flow pump 8 is at least partially located in the mounting cavity 601, the outlet of the second oil passage 602 is connected to the mounting cavity 601, and the inlet of the axial flow pump 8 is located in the mounting cavity 601.

[0025] When the oil is returned through the first oil passage 301 and the second oil passage 602, the outlet of the second oil passage 602 is connected to the mounting cavity 601. This allows the oil to first enter the mounting cavity 601 from the outlet of the second oil passage 602 during the return process. The rotating shaft 7 is connected to the bearing housing 6 via a bearing located within the mounting cavity 601, which is also a key lubrication point. The oil first provides sufficient lubrication to this location. Then, the axial flow pump 8 guides the oil to the central oil passage 701, and from the outlet of the central oil passage 701, it flows into the connecting groove 201, further lubricating the connection between the rotating shaft 7 and the moving scroll 2. Thus, during compressor operation, the oil returned from the high-pressure chamber 5 can simultaneously lubricate the two key lubrication points of the compressor, directly supplying sufficient lubricating oil to both locations and improving lubrication efficiency. The axial flow pump 8 is connected to the rotating shaft 7, therefore, the inlet of the axial flow pump 8 is intermittently connected to the outlet of the second oil passage 602.

[0026] The axial flow pump 8 is at least partially located in the mounting cavity 601 and the inlet of the axial flow pump 8 is located in the mounting cavity 601. After the oil is introduced into the mounting cavity 601 for lubrication, the oil can easily flow from the mounting cavity 601 into the inlet of the axial flow pump 8, and then the axial flow pump 8 will continue to guide the oil to the central oil passage 701 and then into the connecting groove 201.

[0027] Among them, such as Figures 5 to 10 As shown, the axial flow pump 8 includes a pump body 801, which is assembled with the rotating shaft 7. The pump body 801 is an annular body, and the inner wall of the pump body 801 is interference-fitted with the circumferential side wall of the rotating shaft 7. The pump body 801 has an oil groove 802, which is located on the circumferential side wall of the pump body 801. The oil groove 802 can communicate with the second oil passage 602 and the central oil passage 701.

[0028] The pump body 801 has an annular structure, which facilitates connection and mating with the rotating shaft 7. The pump body 801 and the rotating shaft 7 are two separate components. The pump body 801 can be sleeved onto the rotating shaft 7 and is interference-fitted with the rotating shaft 7, which is relatively convenient for assembly. When the rotating shaft 7 rotates, the pump body 801 can also rotate with the rotating shaft 7. During the rotation, the oil flows from the oil tank 802 to the inlet of the central oil passage 701. The power of the axial flow pump 8 comes from the rotation of the rotating shaft 7. No additional power source is required. Moreover, it works synchronously with the working state of the compressor. As long as the rotating shaft 7 of the compressor drives the scroll 2 to compress the refrigerant gas, the axial flow pump 8 will also operate together. During rotation, the oil tank 802 is intermittently connected to the outlet of the second oil passage 602. When the oil tank 802 rotates to the outlet of the second oil passage 602, the oil in the second oil passage 602 and the mounting cavity 601 can flow into the oil tank 802 at the same time. When the oil tank 802 rotates to other positions and is not directly connected to the second oil passage 602, the oil flowing from the second oil passage 602 into the mounting cavity 601 will flow into the oil tank 802.

[0029] In one embodiment, the pump body 801 is at least partially located within the mounting cavity 601, and the oil groove 802 is located within the mounting cavity 601. In the radial direction of the pump body 801, the oil groove 802 at least partially penetrates the circumferential sidewall of the pump body 801. The oil groove 802 extends obliquely from the end of the pump body 801 away from the moving scroll 2 toward the end closer to the moving scroll 2.

[0030] As the pump body 801 rotates with the shaft 7, at least part of the oil flows from the mounting cavity 601 into the oil trough 802. The oil trough 802 extends obliquely in the axial direction of the pump body 801, causing the oil in the oil trough 802 to have a swishing motion when the pump body 801 rotates, allowing the oil to flow along the obliquely extending oil trough 802 towards the central oil passage 701. If the oil trough 802 were to extend linearly along the axial direction of the pump body 801 on the outer circumference of the pump body 801, although it could also guide the oil, the effect would be inferior to that of the obliquely extending oil trough 802.

[0031] The pump body 801 is at least partially located within the mounting cavity 601. When the oil in the mounting cavity 601 flows into the oil groove 802, the portion of the oil groove 802 located within the mounting cavity 601 can penetrate the circumferential sidewall of the pump body 801 in the radial direction. However, the portion of the oil groove 802 located outside the mounting cavity 601 does not penetrate the circumferential sidewall of the pump body 801. That is, the portion of the oil groove 802 located outside the mounting cavity 601 is located within the circumferential sidewall of the pump body 801. This is because if the portion of the oil groove 802 located outside the mounting cavity 601 also penetrates the circumferential sidewall of the pump body 801, when the oil flows to that part, the oil will be directly dropped by the rotation of the pump body 801 into the cavity between the bearing seat 6 and the moving scroll 2. Only a small portion of the oil may flow into the central oil passage 701, affecting the lubrication of the connection between the rotating shaft 7 and the moving scroll 2.

[0032] Alternatively, the pump body 801 may be at least partially located within the mounting cavity 601, with the oil groove 802 also located within the mounting cavity 601. In this case, the oil groove 802 can completely penetrate the circumferential sidewall of the pump body 801 in the radial direction. When the pump body 801 rotates with the shaft 7, and the oil flows within the oil groove 802, the inner wall of the mounting cavity 601 acts as a barrier, preventing the oil from being thrown out of the oil groove 802. Furthermore, the method of having the oil groove 802 completely penetrate the circumferential sidewall of the pump body 801 is easier to manufacture than the method of having only a portion penetrating the circumferential sidewall of the pump body 801 while leaving the other portion untouched.

[0033] Alternatively, the pump body 801 can be entirely located within the mounting cavity 601. In this case, the oil trough 802 is also entirely located within the mounting cavity 601, just as described above. In this case, the oil trough 802 also penetrates the circumferential sidewall of the pump body 801.

[0034] like Figures 2 to 5 As shown, the compressor includes a sliding bearing 9, which is at least partially located within the mounting cavity 601. The outer side wall of the sliding bearing 9 is interference-fitted with the bearing housing 6, and the inner side wall of the sliding bearing 9 is rotatably connected to the rotating shaft 7.

[0035] In this application, the rotating shaft 7 is connected to the bearing housing 6 via a sliding bearing 9. When oil flows into the mounting cavity 601, the positions where the sliding bearing 9 connects to the bearing housing 6 and the rotating shaft 7 can be lubricated. The outer circumferential sidewall of the sliding bearing 9 is interference-fitted with the bearing housing 6, and the rotating shaft 7 rotates on the inner circumferential side of the sliding bearing 9. This supports the rotating shaft 7 and improves the overall stability.

[0036] The sliding bearing 9 has an opening 901, which is connected to the outlet of the second oil passage 602 and can be connected to the oil groove 802.

[0037] The opening 901 is designed to facilitate the lubrication of oil between the rotating shaft 7 and the inner circumferential side wall of the sliding bearing 9. It also allows a portion of the oil entering the mounting cavity 601 to be stored at the opening 901. The opening 901 is connected to the outlet of the second oil passage 602, allowing the oil to be directly guided to the opening 901. As the pump body 801 rotates with the rotating shaft 7, the oil trough 802 and the opening 901 are intermittently connected, and during the connection, the oil in the opening 901 can flow into the oil trough 802.

[0038] Since the space of the mounting cavity 601 in the bearing housing 6 houses both the sliding bearing 9 and the axial flow pump 8, and both the sliding bearing 9 and the axial flow pump 8 are connected to the rotating shaft 7, the gap between the sliding bearing 9 and the axial flow pump 8 is small in order to ensure the compactness of the structure. If there were no opening 901, although the oil could flow into the oil sump 802 or between the sliding bearing 9 and the rotating shaft 7 through the gap between the two, the flow efficiency would be low and the speed would be slow, which is worse than the effect of having an opening 901.

[0039] like Figure 4 and 5 As shown, the compressor includes an eccentric sleeve 10, which includes a connecting portion 1001 and an eccentric portion 1002. The rotating shaft 7 includes a shaft portion 702 and an eccentric pin 703. The eccentric pin 703 is connected to one end of the shaft portion 702 and is connected to the connecting portion 1001. The connecting portion 1001 is connected to the moving scroll 2. The connecting portion 1001 is at least partially located in the connecting groove 201. The bearing housing 6 includes a receiving cavity 603, which communicates with the mounting cavity 601 and the connecting groove 201. The eccentric portion 1002 is at least partially located in the receiving cavity 603. The pump body 801 is interference-fitted with the circumferential sidewall of one end of the shaft portion 702. The inner sidewall of the sliding bearing 9 is rotatably connected to the circumferential sidewall of one end of the shaft portion 702. A portion of the central oil passage 701 is located in the eccentric pin 703, and the other portion of the central oil passage 701 is located in the shaft portion 702.

[0040] During the compression of refrigerant gas, the moving scroll 2 performs eccentric motion. Therefore, when connected to the rotating shaft 7, it is connected to the eccentric pin 703 in the rotating shaft 7. The eccentric pin 703 is connected to the end face of one end of the shaft 702 and is eccentrically connected. The eccentric pin 703 and the shaft 702 are an integral part. When opening the central oil passage 701, the central oil passage 701 is milled along the axial direction of the eccentric pin 703. The central oil passage 701 passes through the eccentric pin 703 along the axial direction of the eccentric pin 703 and extends into the shaft 702. Then, the inlet of the central oil passage 701 is opened on the circumferential side wall of the shaft 702. It should be understood that the method of setting the central oil passage 701 and the processing sequence in this application are not limited in any way.

[0041] The eccentric sleeve 10 balances the centrifugal force of the moving scroll 2 during eccentric motion. The connecting part 1001 of the eccentric sleeve 10 connects to the eccentric pin 703, and the connecting part 1001 further connects to the connecting groove 201 of the moving scroll 2. When oil flows from the central oil passage 701 into the connecting groove 201, it lubricates the connecting parts. The eccentric part 1002 mainly serves as a counterweight, achieving dynamic balance with the moving scroll 2 during rotation.

[0042] like Figures 2 to 4 As shown, in one embodiment, the stationary vortex disk 1 includes a third oil passage 101, the first oil passage 301 is connected to the third oil passage 101, and the third oil passage 101 is connected to the second oil passage 602; thus, the oil after oil-gas separation in the high-pressure chamber 5 first flows into the first oil passage 301, then flows from the first oil passage 301 into the third oil passage 101, and then flows from the third oil passage 101 into the second oil passage 602 before flowing into the mounting cavity 601.

[0043] In another embodiment, the exhaust cover 3 has a fourth oil passage 302, which is connected to the first oil passage 301 and the fourth oil passage 302, and is connected to the second oil passage 602. The oil after oil-gas separation in the high-pressure chamber 5 first flows into the first oil passage 301, then flows from the first oil passage 301 into the fourth oil passage 302, and then flows from the fourth oil passage 302 into the second oil passage 602, thus realizing the return of the oil.

[0044] like Figure 2-4 As shown, the compressor includes a filter screen 11 and a pressure reducing valve 12. The filter screen 11 is at least partially located in the first oil passage 301; the pressure reducing valve 12 is at least partially located in the third oil passage 101, or the pressure reducing valve 12 is at least partially located in the fourth oil passage 302.

[0045] The refrigerant gas in the high-pressure chamber 5 has high temperature and pressure, and it also has high pressure after oil-gas separation. Therefore, when the oil is returned from each oil circuit, it needs to be throttled and its pressure reduced to prevent negative impacts. The filter screen 11 filters impurities in the oil, preventing them from being returned to the connection between the rotating shaft 7 and the sliding bearing 9, or between the rotating shaft 7 and the moving scroll 2, causing blockages and affecting the compressor's operation. The filter screen 11, like the pressure reducing valve 12, also has a throttling and pressure-reducing function.

[0046] like Figure 2-4 As shown, the compressor includes an oil separator 13, which is located inside the exhaust cover 3 and is connected to the inner wall of the exhaust cover 3; the compressor has an exhaust chamber 14, which is located between the exhaust cover 3 and the oil separator 13; a high-pressure chamber 5 is located between the stationary scroll 1 and the oil separator 13; the oil separator 13 has a connecting hole 1301, which connects the high-pressure chamber 5 and the exhaust chamber 14.

[0047] When separating oil and gas in the compressed refrigerant gas, the separation is mainly carried out by the oil separator 13 installed in the exhaust cover 3. The oil separator 13 divides the exhaust cover 3 into two areas: one is the high-pressure chamber 5 located between the stationary scroll 1 and the oil separator 13, and the other is the exhaust chamber 14 located between the oil separator 13 and the exhaust cover 3. The oil separator 13 can adhere to the oil in the refrigerant gas and leave the oil in the high-pressure chamber 5, while the gas flows into the exhaust chamber 14 through the connecting hole 1301 provided on the oil separator 13. The connecting hole 1301 can be positioned at the top of the oil separator 13, and then discharged from the exhaust chamber 14 to the outside of the compressor.

[0048] The above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. The understanding of this specification should be based on those skilled in the art. For example, directional descriptions such as "front", "back", "left", "right", "up", and "down" are only used to describe the relationship between objects and are not substantial limitations. "Multiple" means at least two or more.

[0049] Although this specification has described the present application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present application, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A compressor, characterized in that, The compressor includes a stationary scroll (1), a moving scroll (2), and an exhaust cover (3). The compressor has a compression chamber (4) and a high-pressure chamber (5). The compression chamber (4) is at least partially located between the stationary scroll (1) and the moving scroll (2). The high-pressure chamber (5) is at least partially located between the stationary scroll (1) and the exhaust cover (3). The compression chamber (4) and the high-pressure chamber (5) are in communication. The exhaust cover (3) has a first oil passage (301) which is connected to the high-pressure chamber (5); the compressor includes a bearing housing (6) and a rotating shaft (7), the bearing housing (6) has a second oil passage (602), and the first oil passage (301) and the second oil passage (602) are connected; The compressor includes an axial flow pump (8) connected to the rotating shaft (7). The inlet of the axial flow pump (8) is connected to the outlet of the second oil passage (602). The rotating shaft (7) has a central oil passage (701) and is connected to the moving scroll (2). The moving scroll (2) has a connecting groove (201). At least one end of the rotating shaft (7) is located in the connecting groove (201). The outlet of the axial flow pump (8) is connected to the central oil passage (701), and the central oil passage (701) is connected to the connecting groove (201). The axial flow pump (8) includes a pump body (801) having an oil trough (802), and the compressor includes a sliding bearing (9) having an opening (901). During the rotation of the pump body (801) with the shaft (7), the oil trough (802) and the opening (901) are intermittently connected.

2. The compressor according to claim 1, characterized in that, The bearing housing (6) has a mounting cavity (601), the rotating shaft (7) is at least partially located in the mounting cavity (601), the axial flow pump (8) is at least partially located in the mounting cavity (601), the outlet of the second oil passage (602) is connected to the mounting cavity (601), and the inlet of the axial flow pump (8) is located in the mounting cavity (601).

3. The compressor according to claim 1 or 2, characterized in that, The pump body (801) is assembled with the rotating shaft (7). The pump body (801) is an annular body, and the inner wall of the pump body (801) is interference-fitted with the circumferential side wall of the rotating shaft (7). The oil trough (802) is located on the circumferential sidewall of the pump body (801). The oil trough (802) is connected to the second oil passage (602) and the oil trough (802) is connected to the central oil passage (701).

4. The compressor according to claim 3, characterized in that, The pump body (801) is at least partially located within the mounting cavity (601), and the oil groove (802) is located within the mounting cavity (601). In the radial direction of the pump body (801), the oil groove (802) at least partially penetrates the circumferential sidewall of the pump body (801). The oil sump (802) extends obliquely from one end of the pump body (801) away from the moving scroll (2) toward the other end closer to the moving scroll (2).

5. The compressor according to claim 4, characterized in that, The sliding bearing (9) is at least partially located in the mounting cavity (601), the outer side wall of the sliding bearing (9) is interference-fitted with the bearing seat (6), and the inner side wall of the sliding bearing (9) is rotatably connected to the rotating shaft (7).

6. The compressor according to claim 5, characterized in that, The opening (901) is connected to the outlet of the second oil passage (602), and the opening (901) is connected to the oil tank (802).

7. The compressor according to claim 5, characterized in that, The compressor includes an eccentric sleeve (10), the eccentric sleeve (10) includes a connecting part (1001) and an eccentric part (1002), the rotating shaft (7) includes a shaft part (702) and an eccentric pin (703), the eccentric pin (703) is connected to one end of the shaft part (702), the eccentric pin (703) is connected to the connecting part (1001), the connecting part (1001) is connected to the moving scroll (2), and the connecting part (1001) is at least partially located in the connecting groove (201); the bearing seat (6) includes a receiving cavity (603), the receiving cavity (603) communicates with the mounting cavity (601), the receiving cavity (603) communicates with the connecting groove (201), and the eccentric part (1002) is at least partially located in the receiving cavity (603); The pump body (801) is interference-fitted with the circumferential sidewall of one end of the shaft (702), and the inner sidewall of the sliding bearing (9) is rotatably connected to the circumferential sidewall of one end of the shaft (702). One part of the central oil passage (701) is located inside the eccentric pin (703), and the other part of the central oil passage (701) is located inside the shaft (702).

8. The compressor according to claim 5, characterized in that, The stationary vortex disk (1) includes a third oil passage (101), the first oil passage (301) is connected to the third oil passage (101), and the third oil passage (101) is connected to the second oil passage (602); Alternatively, the exhaust cover (3) has a fourth oil passage (302), the first oil passage (301) is connected to the fourth oil passage (302), and the fourth oil passage (302) is connected to the second oil passage (602).

9. The compressor according to claim 8, characterized in that, The compressor includes a filter screen (11) and a pressure reducing valve (12), wherein the filter screen (11) is at least partially located within the first oil passage (301); The pressure reducing valve (12) is at least partially located in the third oil passage (101), or the pressure reducing valve (12) is at least partially located in the fourth oil passage (302).

10. The compressor according to claim 1, characterized in that, The compressor includes an oil separator (13), which is located inside the exhaust cover (3) and is connected to the inner wall of the exhaust cover (3); The compressor has an exhaust chamber (14) located between the exhaust cover (3) and the oil separator (13), and a high-pressure chamber (5) located between the stationary volute (1) and the oil separator (13). The oil separator (13) has a connecting hole (1301) that connects the high-pressure chamber (5) and the exhaust chamber (14).

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