Compressor oil supply structure and scroll compressor

Abstract

The present application provides a compressor oil supply structure and a scroll compressor. The compressor oil supply structure includes a pump body and an anti-rotation device. The pump body includes a relatively matched moving plate and a stationary plate. The scroll teeth of the moving plate and the stationary plate mesh with each other to form a compression chamber. A back pressure chamber is provided on the back side of the moving plate away from the stationary plate. The back pressure chamber provides the moving plate with a back pressure that matches the end face of the stationary plate. The back pressure chamber includes a medium pressure chamber. The anti-rotation device is provided in the medium pressure chamber. The pump body has a medium pressure channel for introducing the medium pressure in the compression chamber into the back pressure chamber. The moving plate has a medium pressure outlet connected to the medium pressure channel. The medium pressure outlet is used to introduce the medium pressure in the compression chamber into the medium pressure chamber. The anti-rotation device is provided with a sealing portion that matches the back side end face of the moving plate. The sealing portion can completely block the medium pressure outlet within a preset angle. According to the compressor oil supply structure of the present application, the connection control of the medium pressure can be made unaffected by the end face structure of the moving and stationary plates, thereby ensuring the stability of the back pressure.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a compressor oil supply structure and a scroll compressor. Background Art

[0002] Conventional compressors generally have a back pressure chamber, which provides back pressure to press the moving plate against the upper end surface of the stationary plate. The back pressure chamber usually has a medium pressure part, because too much back pressure will lead to serious friction loss, and too little back pressure will increase leakage, which makes the medium pressure between suction and exhaust become an important part of the back pressure chamber.

[0003] Generally, the back-pressure chamber is opened on one side of the moving disk or the stationary disk, and a single medium-pressure hole is only connected to the compression chamber on one side, so that the pressure in the compression chamber is introduced into the medium-pressure part in the back-pressure chamber to provide back pressure. However, it should be noted that the pressure of a single compression chamber changes continuously with the rotation angle of the main shaft. Usually, after the compressor is stable, during the compression process of the same compression chamber, the medium pressure will be higher than the pressure in the compression chamber when the medium-pressure hole starts to be connected, and lower than the pressure that the compression chamber should have when the medium-pressure hole ends connecting. This results in that during each compression process, the medium-pressure gas is decompressed and released into the compression chamber, and then recompressed to the original pressure together with the reduction of the compression chamber. Each decompression and recompression is accompanied by energy loss and waste of efficiency. The medium pressure will also become unstable, causing large fluctuations in the back pressure, which reduces the reliability of the compressor.

[0004] Typically, existing compressors use some methods to control the phase angle of the medium-pressure hole connection, so that the compression chamber is connected to the outside world only within a smaller phase angle during a compression cycle. This can effectively reduce the medium-pressure loss and make the back pressure more stable.

[0005] There are usually two factors to control the medium voltage connection phase angle:

[0006] In a certain phase angle, the medium pressure hole on the moving plate (stationary plate) will be completely covered by the vortex teeth of the stationary plate (moving plate), so that the back pressure hole in this phase angle range is closed. However, usually, using this method, the phase angle of the medium pressure hole after control will be greater than 180 degrees, and the connection range is still large. Therefore, the second method is adopted in the traditional technology: the method of the medium pressure groove on the end face.

[0007] like Figure 1It is a static plate of a compressor in the traditional technology, and there is a medium-pressure oil groove 1' on the static plate. On the one hand, this medium-pressure oil groove 1' can be used to guide oil and lubricate the end faces of the dynamic and static plates. On the other hand, it is directly connected to the medium-pressure chamber. The gas introduced into the medium-pressure oil groove 1' can enter the medium-pressure chamber with the revolution of the dynamic plate. In the process of the dynamic plate rotating around the static plate, the medium-pressure hole on the dynamic plate is led out from a certain position on the end faces of the dynamic and static plates. This lead-out hole can be connected to the special-shaped groove at the inlet of the medium-pressure oil groove 1' within a specific phase angle, and the other phase angles are sealed by the end faces of the dynamic and static plates. In this way, the connection angle and connection pressure of the medium pressure can be freely controlled by the appropriate opening position of the inlet of the medium-pressure oil groove 1' and the opening position of the medium-pressure hole.

[0008] However, there are some compressors in the related technology that have other structures on the end faces of the movable and static disks, which makes it difficult to set a medium-pressure oil groove on the end faces of the movable and static disks. Therefore, it is impossible to use the above-mentioned method of setting the medium-pressure oil groove to control the connection angle and connection pressure of the medium pressure, which leads to the inability to ensure the stability of the back pressure. Summary of the invention

[0009] Therefore, the technical problem to be solved by the present application is to provide a compressor oil supply structure and a scroll compressor, which can ensure that the connection control of the medium pressure is not affected by the end surface structure of the dynamic and static disks, thereby ensuring the stability of the back pressure.

[0010] In order to solve the above problems, the present application provides a compressor oil supply structure, including a pump body and an anti-rotation device, the pump body includes a relatively matched moving plate and a stationary plate, the vortex teeth of the moving plate and the stationary plate mesh with each other to form a compression chamber, a back-pressure chamber is arranged on the back side of the moving plate away from the stationary plate, the back-pressure chamber provides the moving plate with a back pressure that matches the end face of the stationary plate, the back-pressure chamber includes a medium-pressure chamber, the anti-rotation device is arranged in the medium-pressure chamber, the pump body has a medium-pressure channel for introducing the medium pressure in the compression chamber into the back-pressure chamber, the moving plate has a medium-pressure outlet connected to the medium-pressure channel, the medium-pressure outlet is used to introduce the medium pressure in the compression chamber into the medium-pressure chamber, and the anti-rotation device is provided with a sealing portion that matches the back end face of the moving plate, and the sealing portion can completely block the medium-pressure outlet within a preset angle.

[0011] Preferably, the medium-pressure passage is located on the moving disk, and the inlet of the medium-pressure passage can be intermittently blocked by the volute of the stationary disk.

[0012] Preferably, the phase angle range in which the inlet of the medium-pressure channel is completely blocked is [a, b], and the phase angle range in which the anti-rotation device completely blocks the medium-pressure outlet is [c, d]. When a, b, c, d are all in [0, 2π], [a, b] and [c, d] have an intersection.

[0013] Preferably, 0<2π-[a,b]∪[c,d]≤π.

[0014] Preferably, the sealing portion and the anti-rotation device are integrally formed.

[0015] Preferably, the sealing portion is formed on the end surface of the anti-rotation device and is made of a different material from the anti-rotation device.

[0016] Preferably, the sealing portion protrudes from the end surface of the anti-rotation device.

[0017] Preferably, the sealing parts are symmetrically arranged on the end surface of the anti-rotation device.

[0018] Preferably, an annular groove is provided on the end surface of the stationary disc, and an annular protrusion is provided on the end surface of the movable disc. The annular protrusion cooperates with the annular groove to form a high-pressure oil groove, and the high-pressure oil groove is connected with the high-pressure chamber through a connecting channel.

[0019] Preferably, a first connecting channel is provided on the stationary plate, and the first connecting channel connects the high-pressure chamber with the high-pressure oil groove. A second connecting channel is provided on the moving plate, and a bearing lubrication chamber is provided on the back side of the moving plate. One end of the second connecting channel is connected to the high-pressure oil groove, and the other end is connected to the bearing lubrication chamber.

[0020] According to another aspect of the present application, a scroll compressor is provided, comprising a compressor oil supply structure, wherein the compressor oil supply structure is the above-mentioned compressor oil supply structure.

[0021] The compressor oil supply structure provided by the present application includes a pump body and an anti-rotation device. The pump body includes a relatively matched moving plate and a stationary plate, and the vortex teeth of the moving plate and the stationary plate are meshed with each other to form a compression chamber. A back-pressure chamber is arranged on the back side of the moving plate away from the stationary plate. The back-pressure chamber provides the moving plate with a back pressure that matches the end face of the stationary plate. The back-pressure chamber includes a medium-pressure chamber. The anti-rotation device is arranged in the medium-pressure chamber. The pump body has a medium-pressure channel for introducing the medium pressure in the compression chamber into the back-pressure chamber. The moving plate has a medium-pressure outlet connected to the medium-pressure channel. The medium-pressure outlet is used to introduce the medium pressure in the compression chamber into the medium-pressure chamber. The anti-rotation device is provided with a sealing portion that matches the back end face of the moving plate. The sealing portion can completely block the medium-pressure outlet within a preset angle. The oil supply structure of the compressor can realize the opening or closing control of the medium-pressure outlet that provides medium pressure to the medium-pressure chamber through the anti-rotation device that guides the moving disk, thereby limiting the connection phase angle between the medium-pressure channel and the back-pressure chamber. Not only can the anti-rotation device be used to realize the connection control between the compression chamber and the medium-pressure chamber under the normal moving and static disk end face structure, but also because the control position is located on the back end face of the moving disk, the connection control of the medium pressure is not affected by the moving and static disk end face structure, thereby improving the application scope of the phase angle control structure of the connection between the medium-pressure channel and the back-pressure chamber, and can effectively ensure the stability of the back pressure, thereby improving the working stability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a static disk structure of an embodiment of the related art;

[0023] Figure 2 This is a structural diagram of a first state of a compressor oil supply structure according to an embodiment of the present application;

[0024] Figure 3 This is a structural diagram of a compressor oil supply structure in a second state according to an embodiment of the present application;

[0025] Figure 4 This is a structural diagram of the third state of the compressor oil supply structure of one embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the stator structure of the compressor oil supply structure according to one embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the dynamic disc structure of the compressor oil supply structure according to one embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of a moving disk of a compressor oil supply structure according to an embodiment of the present application;

[0029] Figure 8 This is a schematic cross-sectional structural diagram of a moving plate of a compressor oil supply structure according to an embodiment of the present application;

[0030] Fig. 9 This is a schematic diagram of the cross-slip ring structure of the compressor oil supply structure according to one embodiment of the present application;

[0031] Fig.10 This is a schematic diagram of the dynamic disc structure of the compressor oil supply structure according to one embodiment of the present application;

[0032] Fig.11 This is a schematic diagram of the matching structure of the moving plate and the cross ring of the compressor oil supply structure of an embodiment of the present application.

[0033] The reference numerals are:

[0034] 1. Anti-rotation device; 2. Moving plate; 3. Static plate; 4. Medium-pressure chamber; 5. Medium-pressure channel; 6. Medium-pressure outlet; 7. Sealing part; 8. Annular groove; 9. Annular protrusion; 10. High-pressure oil groove; 11. First connecting channel; 12. Second connecting channel; 13. Bearing lubrication chamber. DETAILED DESCRIPTION

[0035] See also Figures 2 to 11As shown, the compressor oil supply structure includes a pump body and an anti-rotation device 1, the pump body includes a relatively matched moving plate 2 and a stationary plate 3, the vortex teeth of the moving plate 2 and the stationary plate 3 mesh with each other to form a compression chamber, a back pressure chamber is arranged on the back side of the moving plate 2 away from the stationary plate 3, the back pressure chamber provides the moving plate 2 with a back pressure that matches the end face of the stationary plate 3, the back pressure chamber includes a medium pressure chamber 4, the anti-rotation device 1 is arranged in the medium pressure chamber 4, the pump body has a medium pressure channel 5 for introducing the medium pressure in the compression chamber into the back pressure chamber, the moving plate 2 has a medium pressure outlet 6 connected to the medium pressure channel 5, the medium pressure outlet 6 is used to introduce the medium pressure in the compression chamber into the medium pressure chamber 4, the anti-rotation device 1 is provided with a sealing portion 7 that matches the back side end face of the moving plate 2, and the sealing portion 7 can completely block the medium pressure outlet 6 within a preset angle.

[0036] The oil supply structure of the compressor can realize the opening or closing control of the medium-pressure outlet 6 that provides medium pressure to the medium-pressure chamber 4 through the anti-rotation device 1 that guides the moving plate 2, and limit the connection phase angle between the medium-pressure channel 5 and the back-pressure chamber. Not only can the anti-rotation device 1 be used to realize the connection control between the compression chamber and the medium-pressure chamber under the condition of the normal moving and static plate end face structure, but also because the control position is located on the back side end face of the moving plate 2, the connection control of the medium pressure is not affected by the moving and static plate end face structure, thereby improving the application scope of the phase angle control structure of the connection between the medium-pressure channel 5 and the back-pressure chamber, and can effectively ensure the stability of the back pressure, thereby improving the working stability of the compressor.

[0037] In this embodiment, the moving plate 2 and the stationary plate 3 are matched to form a pump body, and the scroll teeth of the moving plate 2 and the stationary plate 3 are meshed with each other to form a plurality of compression chambers.

[0038] The above-mentioned back pressure chamber can provide the moving plate 2 with back pressure that matches the end surface of the stationary plate 3 .

[0039] The anti-rotation device 1 of this embodiment prevents the movable plate 2 from rotating when driven by the eccentric crankshaft, but only revolves around the stationary plate. The sealing portion of the anti-rotation device 1 cooperates with the back plane of the movable plate 2, moves with the movable plate 2, and forms a periodic relative motion with the back plane of the movable plate 2.

[0040] The above-mentioned medium-pressure channel 5 is, for example, a medium-pressure hole, and one end of the medium-pressure hole facing the static plate 3 penetrates the dynamic plate 2 so as to be connected with the compression chamber.

[0041] The above-mentioned intermediate pressure is greater than the suction pressure and less than the exhaust pressure. The exhaust pressure here is the exhaust pressure of the compressor.

[0042] In one embodiment, the medium-pressure channel 5 is located on the moving plate 2, and the inlet of the medium-pressure channel 5 can be intermittently blocked by the volute of the stationary plate 3. In this embodiment, the inlet of the medium-pressure channel 5 can be intermittently blocked by the volute of the stationary plate 3, so the connection angle between the inlet of the medium-pressure channel 5 and the compression chamber can be controlled, thereby realizing the control of the medium-pressure connection phase angle.

[0043] In this embodiment, the vortex teeth of the stator disk 3 can be used to control the connection state between the medium-pressure channel 5 and the medium-pressure chamber 4 from the inlet of the medium-pressure channel 5. At the same time, the sealing part 7 of the anti-rotation device 1 can be used to control the connection state between the medium-pressure channel 5 and the medium-pressure chamber 4 from the medium-pressure outlet 6. Therefore, the cooperation of the two can be used to effectively limit the connection phase angle between the medium-pressure channel 5 and the medium-pressure chamber 4, so that the connection phase angle can be within a relatively stable pressure fluctuation range, reducing the connection range between the medium-pressure channel 5 and the medium-pressure chamber 4, more effectively avoiding repeated compression, reducing power waste, and improving the pressure stability of the back-pressure chamber.

[0044] In one embodiment, the phase angle range at which the inlet of the medium-pressure channel 5 is completely blocked is [a, b], and the phase angle range at which the anti-rotation device 1 completely blocks the medium-pressure outlet 6 is [c, d]. When a, b, c, d are all in [0, 2π], [a, b] and [c, d] have an intersection. When [a, b] and [c, d] have an intersection, it means that the phase angle at which the inlet of the medium-pressure channel 5 is completely blocked overlaps with the phase angle at which the anti-rotation device 1 completely blocks the medium-pressure outlet 6. Therefore, the phase angle range at which the medium-pressure channel 5 is not connected to the medium-pressure chamber 4 can be a continuous phase angle range, and the phase angle range at which the medium-pressure channel 5 is connected to the medium-pressure chamber 4 can be a continuous phase angle range. In this way, it is possible to avoid multiple discontinuous phase angle ranges in the connection between the medium-pressure channel 5 and the medium-pressure chamber 4 within one revolution cycle of the moving disk 2, thereby reducing the fluctuation of the medium pressure transmitted from the compression chamber to the medium-pressure chamber 4 and improving the back pressure stability of the back pressure chamber.

[0045] In one embodiment, 0<2π-[a, b]∪[c, d]≤π. This formula can limit the angle range of the medium pressure channel 5 communicating with the medium pressure chamber 4, avoid the problem of poor stability of the medium pressure caused by the angle range being too large, and reduce the fluctuation of the medium pressure in the medium pressure chamber 4.

[0046] During the revolution of the moving disc 2, the anti-rotation device 1 has a certain periodic relationship with the moving disc 2. Therefore, the medium-pressure channel 5, the medium-pressure outlet 6 and the end face of the anti-rotation device 1 on the moving disc 2 cooperate with the moving disc 2 in a range that can be determined by the geometric relationship between the three during the rotation process, thereby achieving stable connection of the medium pressure.

[0047] In one embodiment, the sealing portion 7 is integrally formed with the anti-rotation device 1, which can ensure the bonding strength of the sealing portion 7 on the anti-rotation device 1 and improve the matching stability between the anti-rotation device 1 and the moving disk 2 during the mutual movement.

[0048] In one embodiment, the sealing portion 7 is formed on the end surface of the anti-rotation device 1, and is made of a different material from the anti-rotation device 1. In this embodiment, since the sealing portion 7 and the anti-rotation device 1 are made of different materials, the anti-rotation device 1 can be made of conventional materials, and the sealing portion 7 located at the end surface of the anti-rotation device 1 can be made of wear-resistant materials. The wear-resistant material should have lower rigidity and higher sealing performance, which can reduce the wear on the moving disc 2 on the one hand, and ensure the sealing performance of the sealing portion 7 for the medium-pressure outlet 6 on the other hand, and more effectively avoid the medium-pressure leakage problem.

[0049] In one embodiment, the sealing portion 7 protrudes from the end surface of the anti-rotation device 1. Since the end surface of the anti-rotation device 1 in contact with the moving disc 2 is always a part during the entire revolution of the moving disc 2, it is only necessary to ensure that a sealing fit is formed between this part of the end surface and the moving disc 2 to achieve the adjustment of the closing and opening states of the medium-pressure outlet 6 by the anti-rotation device 1. In the case where the sealing portion 7 is made of a different material from the anti-rotation device 1, the material usage of the sealing portion 7 can be saved, and the cost of the overall assembly formed by the anti-rotation device 1 and the sealing portion 7 can be reduced.

[0050] The anti-rotation device 1 is, for example, a cross slip ring.

[0051] In one embodiment, the sealing part 7 is symmetrically arranged on the end surface of the anti-rotation device 1. The sealing part 7 adopted in this embodiment can just abut the bottom of the moving disc 2. It is made of wear-resistant and low-rigidity material, so that when the moving disc 2 has downward pressure, this part will be pressed down and deformed, while other parts, such as the upper bracket and other supporting components mainly bear the pressure of the moving disc 2. In order to ensure that the elastic force of the cross slip ring to the moving disc 2 is uniform, in this structure, although there is only one medium-pressure outlet 6, the sealing part 7 is symmetrically distributed in four directions.

[0052] In one embodiment, an annular groove 8 is provided on the end surface of the static disk 3, and an annular protrusion 9 is provided on the end surface of the dynamic disk 2. The annular protrusion 9 cooperates with the annular groove 8 to form a high-pressure oil groove 10, and the high-pressure oil groove 10 is connected to the high-pressure chamber through a connecting channel.

[0053] In one embodiment, a first connecting channel 11 is provided on the static plate 3, and the first connecting channel 11 connects the high-pressure chamber with the high-pressure oil groove 10. A second connecting channel 12 is provided on the dynamic plate 2, and a bearing lubrication chamber 13 is provided on the back side of the dynamic plate 2. One end of the second connecting channel 12 is connected to the high-pressure oil groove 10, and the other end is connected to the bearing lubrication chamber 13.

[0054] When the end face matching structure of the movable and stationary discs in which the annular groove 8 and the annular protrusion 9 of the above-mentioned embodiment are matched, the annular groove 8 and the annular protrusion 9 cooperate to form a closed space, and the oil under the exhaust pressure at the bottom of the oil pool can be introduced into this space, so that the space forms a high-pressure oil groove. Therefore, the movable disc 2 and the stationary disc 3 are high-pressure oil at the end face matching position, and there is no medium-pressure oil. For this solution, it is impossible to introduce the medium pressure into the matching end faces of the movable disc 2 and the stationary disc 3, and the solution of setting a medium-pressure oil groove on the stationary disc 3 in the related technology is not applicable.

[0055] For the compressor oil supply structure of this embodiment, because it is impossible to control the pouring angle of the medium-pressure gas by utilizing the intermittent connection of the medium-pressure oil groove, a hole is generally opened directly on the moving plate 2 to directly introduce the medium pressure into the dorsal medium-pressure chamber 4. In this case, the compression chamber is separated from the back-pressure chamber only when the inlet of the medium-pressure channel 5 is blocked by the vortex teeth of the static plate 3. This makes the medium-pressure connection phase angle higher than 180 degrees. According to calculations, within 180 degrees before exhaust, the pressure increases by about 1.3 to 1.4 times, that is, when the medium-pressure hole is opened in this way, when the medium pressure is required to be 1.8 times the suction pressure, the actual discharged medium pressure may be from 1.5 times to 1.95 times the suction pressure, and the medium pressure is very unstable.

[0056] After adopting the above solution of the present application, the communication state between the medium pressure channel 5 and the medium pressure chamber 4 will appear successively Figure 3 , Figure 2 and Figure 4 In the case of a compression chamber, when the pressure in the compression chamber increases with the rotation of the main shaft, the inlet of the medium-pressure passage 5 is first blocked by the stationary disc 3, and enters before the moving disc 2 disengages. Figure 2 Then, after the inlet of the medium-pressure passage 5 of the moving plate 2 is out of the range blocked by the static plate 3, the sealing part 7 on the anti-rotation device 1 continues to block the medium-pressure outlet 6, so that the medium pressure still cannot flow into the back pressure chamber. Figure 4 In this case, the medium-pressure channel 5 is connected to the back-pressure hole. Within this range, the compression chamber basically completes the compression process, the pressure change is small, and the back pressure is relatively stable, thus solving the problem of unstable medium pressure.

[0057] According to an embodiment of the present application, the scroll compressor includes a compressor oil supply structure, which is the compressor oil supply structure mentioned above.

[0058] It is easy for those skilled in the art to understand that the above-mentioned advantageous methods can be freely combined and superimposed without conflict.

[0059] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A compressor oil supply structure, It is characterized in that The invention comprises a pump body and an anti-rotation device (1), wherein the pump body comprises a relatively matched moving plate (2) and a stationary plate (3), wherein the scroll teeth of the moving plate (2) and the stationary plate (3) mesh with each other to form a compression chamber, wherein a back pressure chamber is arranged on the back side of the moving plate (2) away from the stationary plate (3), wherein the back pressure chamber provides the moving plate (2) with a back pressure that matches with the end face of the stationary plate (3), wherein the back pressure chamber comprises a medium pressure chamber (4), wherein the anti-rotation device (1) is arranged in the medium pressure chamber (4), and wherein the pump The body has a medium-pressure channel (5) for introducing the medium pressure in the compression chamber into the back-pressure chamber, the movable plate (2) has a medium-pressure outlet (6) connected to the medium-pressure channel (5), and the medium-pressure outlet (6) is used to introduce the medium pressure in the compression chamber into the medium-pressure chamber (4). The anti-rotation device (1) is provided with a sealing portion (7) that cooperates with the back end surface of the movable plate (2), and the sealing portion (7) can completely cover the medium-pressure outlet (6) within a preset angle.

2. The compressor oil supply structure according to claim 1, It is characterized in that The medium-pressure passage (5) is located on the moving disk (2), and the inlet of the medium-pressure passage (5) can be intermittently blocked by the volute of the stationary disk (3).

3. The compressor oil supply structure according to claim 2, It is characterized in that The phase angle range in which the inlet of the medium-pressure channel (5) is completely blocked is [a, b], and the phase angle range in which the anti-rotation device (1) completely blocks the medium-pressure outlet (6) is [c, d]. When a, b, c, d are all in [0, 2π], [a, b] and [c, d] have an intersection.

4. The compressor oil supply structure according to claim 3, It is characterized in that 0<2π-[a, b]∪[c, d]≤π.

5. The compressor oil supply structure according to any one of claims 1 to 4, It is characterized in that The sealing portion (7) and the anti-rotation device (1) are integrally formed.

6. The compressor oil supply structure according to any one of claims 1 to 4, It is characterized in that The sealing portion (7) is formed on the end surface of the anti-rotation device (1), and is made of a different material from the anti-rotation device (1).

7. The compressor oil supply structure according to any one of claims 1 to 4, It is characterized in that The sealing portion (7) protrudes from the end surface of the anti-rotation device (1).

8. The compressor oil supply structure according to claim 7, It is characterized in that The sealing portion (7) is symmetrically arranged on the end surface of the anti-rotation device (1).

9. The compressor oil supply structure according to any one of claims 1 to 4, It is characterized in that An annular groove (8) is provided on the end surface of the stationary plate (3), and an annular protrusion (9) is provided on the end surface of the movable plate (2). The annular protrusion (9) cooperates with the annular groove (8) to form a high-pressure oil groove (10). The high-pressure oil groove (10) is connected to the high-pressure chamber through a connecting channel.

10. The compressor oil supply structure according to claim 9, It is characterized in that The stationary plate (3) is provided with a first connecting channel (11), and the first connecting channel (11) connects the high-pressure chamber with the high-pressure oil groove (10); the movable plate (2) is provided with a second connecting channel (12), and a bearing lubrication chamber (13) is provided on the back side of the movable plate (2); one end of the second connecting channel (12) is connected to the high-pressure oil groove (10), and the other end is connected to the bearing lubrication chamber (13).

11. A scroll compressor, comprising a compressor oil supply structure, It is characterized in that The compressor oil supply structure is the compressor oil supply structure according to any one of claims 1 to 10.

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