A seal assembly, a static scroll plate assembly, a pump body and a compressor

Abstract

The application provides a sealing assembly for a static vortex disc, the static vortex disc, a pump body and a compressor, and relates to the technical field of compressors, and solves the technical problem that a dynamic vortex disc is prone to fluctuation or overturning, causing leakage or friction. The sealing assembly comprises a static disc pressure channel, which is arranged in the static vortex disc and is used for conveying compensation oil gas; a throttling assembly, which is in communication with the static disc pressure channel and is used for conveying oil liquid in exhaust gas to the static disc pressure channel after pressure reduction; a static vortex disc tooth bottom pressure channel, which is arranged at the bottom of a vortex tooth of the static vortex disc and is used for receiving the compensation oil gas conveyed by the static disc pressure channel, so as to realize axial compensation of a sealing gap between the static vortex disc and the dynamic vortex disc; and a vortex sealing sheet arranged between the static vortex disc tooth bottom pressure channel and the dynamic vortex disc. The pressure in the static vortex disc tooth bottom pressure channel makes the vortex sealing sheet suspended to contact the tooth bottom of the dynamic disc, so that axial sealing is achieved, the leakage amount is effectively reduced, and the volumetric efficiency of the compressor is increased.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a sealing assembly for a stationary scroll plate, a stationary scroll plate assembly, a pump body, and a compressor. Background Technology

[0002] Scroll compressors are widely used in various air conditioners and refrigeration units due to their high efficiency, small size, light weight, and low noise. In daily use, the compressor's long-term stable operation is a primary concern for customers. Therefore, the scroll pump body, as the core compression component of the scroll compressor, requires designers to focus on ensuring smooth operation, stable cooling output, and a long service life. Based on the motion characteristics of scroll compressors, the axial force generated by the compressed gas between the scroll pump bodies causes the moving scroll plate to float axially between the stationary scroll plate and the support, bearing a significant axial gas force. This axial gas force varies with the spindle angle and operating conditions. The axial gas force on the moving scroll plate not only generates significant frictional power loss but also increases the axial clearance between the moving and stationary scroll plates, leading to internal leakage. To balance the axial gas force, current technology typically involves designing a back pressure chamber between the bottom surface of the moving scroll plate and the support. This is achieved by creating small holes in the bottom surface of the moving scroll plate, introducing pressure from the compression chamber into the back pressure chamber, thereby generating axial back pressure to balance the axial gas force. However, in this structure where back pressure is applied to the back of the moving scroll, the back pressure changes with the compressor's operating conditions and the angle of the moving scroll's operation. This makes it impossible to stably balance the axial gas force, leading to fluctuations or overturning of the moving scroll, which in turn causes leakage or friction. Summary of the Invention

[0003] The purpose of this invention is to provide a sealing assembly, a static scroll assembly, a pump body, and a compressor for a static scroll plate, in order to solve the technical problem in the prior art where the dynamic scroll plate is prone to fluctuation or overturning, causing leakage or friction.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] In a first aspect, the present invention provides a sealing assembly for use on a stationary scroll plate, comprising:

[0006] The stationary disk pressure channel is located inside the stationary vortex disk assembly and is used to transport compensating oil and gas.

[0007] A throttling component, connected to the stationary disc pressure channel, is used to depressurize the oil in the exhaust and then deliver it into the stationary disc pressure channel.

[0008] The stationary vortex tooth bottom pressure channel is located at the bottom of the stationary vortex tooth to receive the compensation oil and gas delivered by the stationary pressure channel, thereby achieving axial compensation of the sealing gap between the stationary vortex assembly and the moving vortex assembly.

[0009] Furthermore, the throttling component includes:

[0010] A throttling passage is provided in the exhaust end cap assembly;

[0011] A helical damping core is installed inside the throttling channel.

[0012] Furthermore, the spiral damping core and the throttling channel are assembled with an interference fit.

[0013] Furthermore, a vortex sealing sheet is provided between the stationary vortex disk tooth root pressure channel and the moving vortex disk assembly.

[0014] Furthermore, the inlet of the pressure channel at the bottom of the stationary vortex disk is located on the suction side of the pump body and the overturning side of the moving vortex disk; the end point is located on the exhaust side of the pump body.

[0015] Furthermore, the static disk pressure channel is connected to the inlet of the static vortex disk tooth root pressure channel.

[0016] Furthermore, the pressure P of the exhaust oil 排 The lubricating oil pressure P in the pressure channel at the root of the stationary vortex disk teeth 中 The compressor's suction pressure P 吸 The relationship between P and P is: 排 >P 中 >P 吸 P 中 It is obtained by calculation using the following formula:

[0017]

[0018] Where Q is the flow rate in the throttling channel, R is the liquid resistance of the oil and gas, and A and h are the flow area and groove depth of the spiral damping core.

[0019] Furthermore, the width of the pressure channel at the bottom of the stationary vortex disk tooth varies.

[0020] Furthermore, the cross-sectional shape of the pressure channel at the bottom of the stationary vortex disk is circular or triangular.

[0021] Furthermore, an oil-gas separator is provided inside the exhaust end cap assembly.

[0022] The sealing assembly for a stationary scroll compressor provided by this invention is an adjustable sealing assembly that can be used in scroll compressors. High-pressure oil separated from the compressor exhaust end cover assembly is depressurized into medium-pressure oil-gas by a spiral damping core. This medium-pressure oil-gas is then guided through the stationary scroll pressure channel to the inlet of the stationary scroll tooth root pressure channel (scroll channel). The medium-pressure oil-gas then gradually flows into the end position along the profile of the stationary scroll tooth root pressure channel (scroll channel). At this point, the pressure at the beginning of the stationary scroll tooth root pressure channel is greater than the pressure at the end position. By setting a scroll sealing plate inside the stationary scroll tooth root pressure channel, that is, by the scroll sealing plate contacting the stationary scroll tooth root pressure channel, the pressure inside the stationary scroll tooth root pressure channel... Pressure causes the scroll seal to suspend and contact the bottom of the moving scroll teeth, achieving an axial seal and effectively reducing leakage while increasing the compressor's volumetric efficiency. This invention designs the inlet of the stationary scroll tooth bottom pressure channel at the intake side and the overturning side of the moving scroll, with the end point located at the exhaust center. This results in the highest pressure within the stationary scroll tooth bottom pressure channel on the intake and overturning sides, leading to greater axial float of the scroll seal at corresponding locations. This achieves different axial floats for the scroll seal at different positions, effectively solving the leakage problem caused by uneven force on the moving scroll or overturning. Furthermore, the pressure within the stationary scroll tooth bottom pressure channel varies with the compressor's operating conditions, thus adapting to different operating conditions.

[0023] In a second aspect, the present invention provides a static vortex disk assembly, comprising a static vortex disk assembly and the sealing assembly disposed within the static vortex disk assembly.

[0024] Thirdly, the present invention provides a pump body comprising the stationary vortex disk assembly, a moving vortex disk assembly in contact with the stationary vortex disk assembly, and an exhaust end cover assembly pressing on the stationary vortex disk assembly, wherein the throttling component is disposed within the exhaust end cover assembly.

[0025] Furthermore, the pump body also includes a fixed support assembly and a main shaft, and the moving scroll plate assembly is rotatably connected to the main shaft; the fixed support assembly is sleeved on the main shaft and is in contact with the stationary scroll plate assembly; the moving scroll plate assembly is provided with a back pressure hole communicating with the pressure channel at the tooth root of the stationary scroll plate; the main shaft is provided with a main shaft oil return channel; and the fixed support assembly is provided with a support oil guide channel.

[0026] Fourthly, the present invention provides a compressor including the pump body.

[0027] Furthermore, the compressor is a scroll compressor.

[0028] The compressor provided by this invention uses lubricating oil separated from the exhaust gas. The oil is depressurized and becomes the energy for the floating seal of the vortex sealing plate. Then it enters the low-pressure chamber of the compressor for a new cycle, thus forming an internal circulation of the compressor. This solves the problem of pump leakage, forms a lubricating oil circulation channel, and does not add complex parts. It saves costs without increasing the size and weight of the compressor, and greatly improves energy efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an assembly sectional view of the compressor of the present invention;

[0031] Figure 2 This is a schematic diagram of the groove at the bottom of the tooth of the static vortex disk of the present invention;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the static vortex disk of the present invention;

[0033] Figure 4 This is a schematic diagram of the vortex sealing sheet structure in the static vortex disk of the present invention;

[0034] Figure 5 This is a cross-sectional view of the static vortex disk pressure channel of the present invention;

[0035] Figure 6 This is a schematic diagram of the tilting seal of the moving vortex disk of the present invention;

[0036] Figure 7 This is a schematic diagram of one embodiment of the tooth root pressure channel in the static vortex disk of the present invention.

[0037] In the diagram: 1. Exhaust end cover assembly; 101. Oil-gas separator; 102. Throttling channel; 103. Spiral damping core; 2. Static scroll plate assembly; 201. Static scroll plate tooth root pressure channel; 202. Scroll seal; 203. Static plate pressure channel; 204. Static plate pressure channel plug; 205. Static scroll tooth; 3. Moving scroll plate assembly; 301. Moving scroll plate bearing; 302. Back pressure hole; 4. Fixed bracket assembly; 401. Bracket oil guide channel; 402. Fixed bracket bearing; 5. Main shaft; 501. Main shaft oil return channel; 6. Housing bearing. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0039] like Figure 1 As shown, the present invention provides a sealing assembly for use on a stationary scroll plate, comprising:

[0040] The stationary disk pressure channel 203 is located inside the stationary vortex disk assembly 2 and is used to transport compensating oil and gas.

[0041] The stationary vortex disk assembly 2 includes stationary vortex teeth 205, which have a vortex structure. A stationary vortex disk tooth root pressure channel 201 is formed between the stationary vortex teeth 205. It should be noted that the design of the stationary vortex disk tooth root pressure channel 201 is related to the profile of the stationary vortex teeth 205, ensuring that the vortex sealing plate 202 is subjected to uniform force and does not tip over.

[0042] Since the path of the stationary disk pressure channel 203 is determined by the throttling channel 102 and the inlet position of the stationary vortex tooth bottom pressure channel 201, it cannot be machined to the required position. Therefore, in this invention, it is machined in two steps. First, a hole is drilled radially from the outside of the stationary vortex assembly 2, and then a hole is drilled from the bottom surface of the tooth of the stationary vortex assembly 2 to form the channel. The function of the stationary disk pressure channel plug 204 is to seal the hole where the stationary disk pressure channel 203 communicates with the outside to prevent medium-pressure oil and gas leakage.

[0043] The throttling component is connected to the static pressure channel 203 and is used to depressurize the oil in the exhaust and deliver it into the static pressure channel 203.

[0044] Specifically, in this embodiment, the throttling component includes:

[0045] Throttling passage 102 is formed in exhaust end cover assembly 1;

[0046] The spiral damping core 103 is installed inside the throttling channel 102.

[0047] Furthermore, the spiral damping core 103 and the throttling channel 102 are assembled with an interference fit.

[0048] The exhaust end cover assembly 1 is also equipped with an oil-gas separator 101. The oil-gas mixture in the compressor exhaust is separated by the oil-gas separator 101, and the separated lubricating oil is used as the power for sealing.

[0049] The stationary scroll plate tooth bottom pressure channel 201 is located at the bottom of the scroll teeth of the stationary scroll plate to receive the compensation oil and gas delivered by the stationary plate pressure channel 203, thereby realizing axial compensation of the sealing gap between the stationary scroll plate assembly 2 and the moving scroll plate assembly 3 and effectively reducing the leakage problem of the compressor pump body.

[0050] like Figure 4 As shown, further, a vortex sealing sheet 202 is provided between the stationary vortex disk tooth root pressure channel 201 and the moving vortex disk assembly 3. The vortex sealing sheet 202 is a sheet of metal.

[0051] Furthermore, the inlet of the static vortex tooth root pressure channel 201 is set at the suction side of the pump body and the overturning side of the moving vortex, effectively solving the leakage problem caused by the fluctuation or overturning of the moving vortex; the end point is set at the exhaust side of the center of the pump body.

[0052] like Figure 2 As shown, furthermore, the stationary disk pressure channel 203 is connected to the inlet of the stationary vortex tooth root pressure channel 201. Since there are two inlet points of the stationary vortex tooth root pressure channel 201, the stationary disk pressure channel 203 has two outlets, which are connected to the inlet points of the two stationary vortex tooth root pressure channels 201.

[0053] like Figure 6 As shown, furthermore, to ensure that the adjustable sealing sheet achieves axial compensation and the overall oil circulation of the machine, the following design requirements should be met:

[0054] The pressure P of the exhaust fluid 排 The lubricating oil pressure P in the pressure channel at the root of the stationary vortex tooth 中 The compressor's suction pressure P 吸 The relationship between P and P is: 排 >P 中 >P 吸 P 中 The pressure is determined by the exhaust pressure P. 排 Together with the structural dimensions of the helical damping core 103, P is determined: 中 It is obtained by calculation using the following formula:

[0055]

[0056] Where Q is the flow rate within the throttling channel, R is the liquid resistance of the oil and gas, and A and h are the flow area and groove depth of the spiral damping core, respectively. Therefore, the sealing assembly of this invention changes its sealing pressure according to the compressor's operating conditions, thus achieving a sealing function under various compressor operating conditions.

[0057] like Figure 7As shown, the width of the pressure channel 201 at the bottom of the stationary vortex tooth is different. By designing different widths of the pressure channel at the bottom of the stationary vortex tooth, the sealing pressure of different areas can be designed to adapt to various models.

[0058] Furthermore, the cross-sectional shape of the pressure channel 201 at the bottom of the stationary vortex disk tooth is circular or triangular, which can be adjusted according to the thickness of the stationary vortex disk substrate.

[0059] In use, the oil and gas path is as follows: through the spiral damping core 103 in the exhaust end cover assembly 1 → stationary disc pressure channel 203 → stationary scroll plate tooth root pressure channel 201 → push scroll seal 202; among them, part of the medium-pressure oil and gas flowing from the stationary disc pressure channel 203 into the stationary scroll plate tooth root pressure channel 201 serves as energy to resist pump body leakage, pushing the scroll seal 202 to prevent leakage, while part of it floats along the wall with the scroll seal 202 and flows into the pump body. This part of the oil and gas entering the compression pump body also has two flow directions. First, it participates in the pump body compression to carry out a new round of compression; second, it enters through the back pressure hole 302 of the moving scroll assembly 3, reaches the floating gap, and then lubricates the fixed bracket bearing 402 through the bracket oil guide channel 401, or lubricates the housing bearing 6 through the main shaft return oil channel 501. This realizes the overall large circulation of oil circuit from intake to exhaust inside the compressor and the small circulation of oil circuit between important components such as the pump body. This avoids the wear problem caused by insufficient lubrication of important rotating parts of the compressor, extends the service life of key components, and improves the reliability of the compressor.

[0060] The sealing assembly for a stationary scroll compressor provided by this invention is an adjustable sealing assembly that can be used in a scroll compressor. High-pressure oil separated from the compressor exhaust end cover assembly 1 is depressurized into medium-pressure oil-gas by a spiral damping core 103. This medium-pressure oil-gas is then guided through the stationary scroll pressure channel 203 to the inlet of the stationary scroll tooth root pressure channel 201 (scroll channel). The medium-pressure oil-gas then gradually flows into the end position along the profile of the stationary scroll tooth root pressure channel 201 (scroll channel). At this point, the pressure at the beginning of the stationary scroll tooth root pressure channel 201 is greater than that at the end position. By setting a scroll sealing plate 202 inside the stationary scroll tooth root pressure channel 201, that is, the scroll sealing plate 202 contacts the stationary scroll tooth root pressure channel 201, the pressure inside the stationary scroll tooth root pressure channel 201 causes the scroll to... The sealing plate 202 is suspended and contacts the bottom of the moving scroll tooth, achieving an axial sealing effect, effectively reducing leakage and increasing the volumetric efficiency of the compressor. This invention designs the inlet of the stationary scroll tooth bottom pressure channel 201 at the suction side and the overturning side of the moving scroll, with the end point set at the exhaust center. This results in the highest pressure within the stationary scroll tooth bottom pressure channel 201 on the suction and overturning sides, leading to a greater axial float of the scroll sealing plate 202 at corresponding locations. This achieves different axial floats for the scroll sealing plate 202 at different positions, effectively solving the leakage problem caused by uneven force on the moving scroll or overturning. Furthermore, the pressure within the stationary scroll tooth bottom pressure channel varies with the compressor's operating conditions, thus adapting to different conditions. The sealing assembly of this invention also features a simple structure, ease of implementation, and convenient assembly.

[0061] like Figure 3 As shown, the present invention provides a static vortex disk assembly 2, which includes a static vortex disk assembly 2 and a sealing component disposed within the static vortex disk assembly 2.

[0062] like Figure 1 and Figure 3 As shown, the present invention provides a pump body including a stationary vortex disk assembly 2, a moving vortex disk assembly 3 in contact with the stationary vortex disk assembly 2, and an exhaust end cover assembly 1 pressing on the stationary vortex disk assembly 2, with a throttling component disposed inside the exhaust end cover assembly 1.

[0063] Furthermore, the pump body also includes a fixed support assembly 4 and a main shaft 5. The moving scroll assembly 3 is rotatably connected to the main shaft 5. The fixed support assembly 4 is sleeved on the main shaft 5 and is in contact with the stationary scroll assembly 2. The moving scroll assembly 3 is provided with a back pressure hole 302 that communicates with the stationary scroll tooth root pressure channel 201. The main shaft 5 is provided with a main shaft oil return channel 501. The fixed support assembly 4 is provided with a support oil guide channel 401.

[0064] Specifically, the moving scroll assembly 3 is rotatably connected to the main shaft 5 via the moving scroll bearing 301; the fixed support assembly 4 is rotatably connected to the main shaft 5 via the fixed support bearing 402; and the main shaft 5 is rotatably connected to the housing via the housing bearing 6.

[0065] The present invention provides a compressor, including a pump body.

[0066] The pump body is equipped with an exhaust end cover assembly 1, a stationary vortex assembly 2, a moving vortex assembly 3, and a fixed bracket assembly 4. The stationary vortex assembly 2 includes a stationary vortex tooth root pressure channel 201, a vortex sealing plate 202, a stationary disk pressure channel 203, and a stationary disk pressure channel plug 204.

[0067] Furthermore, the compressor is a scroll compressor.

[0068] In operation, the compressor's exhaust end cover assembly 1 is first designed with an oil-gas separator 101. The separated high-pressure oil passes through a throttling channel 102, and is then reduced in pressure by a spiral damping core 103 to become medium-pressure oil-gas, flowing into the stationary disc pressure channel 203. The spiral damping core 103 and the throttling channel 102 are interference-fitted. To facilitate machining the stationary disc pressure channel 203, a hole is drilled on the suction side of the stationary scroll assembly 2, with a hole depth h equal to the starting position of the stationary scroll tooth root pressure channel 201. To prevent leakage, a stationary disc pressure channel plug 204 is designed. Because the back pressure on the stationary disc suction side is low and prone to leakage, the starting position of the stationary scroll tooth root pressure channel 201 is designed on both the suction and overturning sides of the pump body. Because the pressure in the central exhaust chamber of the pump body is high and leakage is unlikely, the termination position of the stationary volute tooth root pressure channel 201 is designed on the exhaust side. Due to internal compression, the oil and gas in the stationary volute tooth root pressure channel 203 are introduced into the stationary volute tooth root pressure channel 201. Then, the volute sealing plate 202, designed according to the profile of the stationary volute tooth 205, is in clearance fit with the stationary volute tooth 205 of the stationary volute assembly 2. The outer contour circle of the stationary volute assembly 2 contacts the fixed bracket assembly 4. The back of the moving volute assembly 3 is designed with a floating gap between itself and the fixed bracket assembly 4. The floating gap is pressured by the back pressure hole 302, which allows the moving volute assembly 3 to float.

[0069] When the compressor is running, the high-pressure refrigerant compressed by the pump body enters the exhaust end cover assembly 1. After passing through the oil-gas separator 101, the oil in the high-pressure refrigerant is separated and thrown out, falling into the lower end of the exhaust end cover assembly 1 under gravity. The accumulated high-pressure lubricating oil, after passing through the spiral damping core 103 of the throttling channel 102, has its pressure reduced to medium pressure and first flows into the stationary disc pressure channel 203, then into the stationary scroll tooth root pressure channel 201, flowing along the profile of the stationary scroll tooth root pressure channel 201. After the stationary scroll tooth root pressure channel 201 is filled with medium-pressure oil, it lifts the scroll seal 202 to press against the tooth tip of the moving scroll assembly 3, thus providing an axial seal. As the moving scroll assembly 3 rotates once, the pressure in the compression chamber changes with the rotation angle, causing the moving scroll assembly 3 to fluctuate and float axially. Correspondingly, the scroll seal 202 also flips with the tooth tip of the moving scroll assembly 3. At this time, the medium-pressure lubricating oil in the pressure channel 201 at the bottom of the stationary scroll plate is squeezed by the scroll seal 202 and flows into the meshing teeth of the pump body to play a lubricating role. Part of the lubricating oil between the pump bodies enters the exhaust chamber after compression and recirculates. Part of it enters the back pressure chamber through the back pressure hole 302 and lubricates the moving scroll plate bearing 301. Some lubricating oil lubricates the fixed support bearing 402 through the support oil guide channel 401 of the fixed support assembly 4. Other lubricating oil lubricates the housing bearing 6 through the main shaft return oil channel 501 of the main shaft 5. Finally, it enters the low-pressure chamber and enters the circulating oil circuit from the suction side.

[0070] In addition, when the compressor's operating conditions change, the high-pressure oil pressure on the exhaust side changes, which in turn causes pressure changes in the pressure channel 201 at the root of the stationary scroll tooth, thereby achieving pressure adjustment under different operating conditions, reducing friction and power consumption, and improving performance.

[0071] The compressor provided by this invention uses lubricating oil separated from the exhaust gas. The oil is depressurized and becomes the energy for the floating seal of the vortex sealing plate. Then it enters the low-pressure chamber of the compressor for a new cycle, thus forming an internal circulation of the compressor. This solves the problem of pump leakage, forms a lubricating oil circulation channel, and does not add complex parts. It saves costs without increasing the size and weight of the compressor, and greatly improves energy efficiency.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sealing assembly applied to a stationary scroll plate, characterized in that, include The stationary disk pressure channel is located inside the stationary vortex disk assembly and is used to transport compensating oil and gas. A throttling assembly, connected to the stationary disc pressure channel, is used to depressurize the oil in the exhaust and deliver it into the stationary disc pressure channel; the throttling assembly includes: a throttling channel, which is formed in the exhaust end cover assembly of the stationary vortex disk assembly; and a spiral damping core, which is installed in the throttling channel; The stationary vortex tooth bottom pressure channel is set at the bottom of the stationary vortex tooth to receive the compensation oil and gas delivered by the stationary pressure channel, thereby realizing axial compensation of the sealing gap between the stationary vortex assembly and the moving vortex assembly. The pressure P of the exhaust fluid 排 The lubricating oil pressure P in the pressure channel at the root of the stationary vortex disk teeth 中 The compressor's suction pressure P 吸 The relationship between P and P is: 排 >P in >P 吸 P 中 It is obtained by calculation using the following formula: ， Where Q is the flow rate in the throttling channel, R is the liquid resistance of the oil and gas, and A and h are the flow area and groove depth of the spiral damping core.

2. The sealing assembly according to claim 1, characterized in that, The spiral damping core and the throttling channel are assembled with an interference fit.

3. The sealing assembly according to claim 1, characterized in that, A vortex sealing sheet is provided between the stationary vortex disk tooth root pressure channel and the moving vortex disk assembly.

4. The sealing assembly according to claim 1 or 3, characterized in that, The inlet of the static vortex tooth root pressure channel is located at the suction side of the pump body and the overturning side of the moving vortex; the end point is located at the exhaust side of the pump body.

5. The sealing assembly according to claim 4, characterized in that, The static disk pressure channel is connected to the inlet of the static vortex disk tooth root pressure channel.

6. The sealing assembly according to claim 1, characterized in that, The widths of the pressure channels at the tooth bottom of the static vortex disks are different.

7. The sealing assembly according to claim 1, characterized in that, The cross-sectional shape of the pressure channel at the bottom of the stationary vortex disk is circular or triangular.

8. A static vortex disk assembly, characterized in that, It includes a static vortex disk assembly and a sealing assembly as described in any one of claims 1-7 disposed within the static vortex disk assembly.

9. A pump body, characterized in that, It includes the stationary vortex disk assembly as described in claim 8, the moving vortex disk assembly in contact with the stationary vortex disk assembly, and the exhaust end cap assembly pressing on the stationary vortex disk assembly, wherein the throttling assembly is disposed within the exhaust end cap assembly.

10. The pump body according to claim 9, characterized in that, The pump body also includes a fixed support assembly and a main shaft. The moving scroll plate assembly is rotatably connected to the main shaft. The fixed support assembly is sleeved on the main shaft and is in contact with the stationary scroll plate assembly. The moving scroll plate assembly is provided with a back pressure hole that communicates with the pressure channel at the bottom of the tooth of the stationary scroll plate. The main shaft is provided with a main shaft oil return channel. The fixed support assembly is provided with a support oil guide channel.

11. A compressor, characterized in that, Includes the pump body as described in any one of claims 9-10.

12. The compressor according to claim 11, characterized in that, The compressor is a scroll compressor.

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