A highly wear-resistant scroll air-conditioning compressor assembly

Abstract

The present invention relates to the technical field of compressors, and specifically relates to a highly wear-resistant scroll air-conditioning compressor assembly, including: a housing, an upper inner cavity of the housing is provided with a stationary disk seat fixedly connected thereto, a through groove is vertically penetrated through the middle of the stationary disk seat to form a stationary scroll disk, and a pressing disk is arranged below the connecting disk; a moving scroll disk is located in the through groove opened in the middle of the stationary disk seat and is staggered from the stationary scroll disk, a driving disk is arranged below the moving disk seat, and an annular seal is adhesively fixed at the edge between the two; the beneficial effects are: by arranging a connecting disk above the stationary disk seat, the connecting disk approaches the stationary disk seat through the cooperation of a tension nut and a compression spring, and high-pressure gas pushes the moving disk seat and the moving scroll disk upward, ensuring that there is always a tight fit between the moving disk seat and the stationary scroll disk, and between the moving scroll disk and the pressing disk, so as to ensure that the device can still maintain high sealing performance during long-term continuous use.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and particularly to a highly wear-resistant scroll air-conditioning compressor assembly. Background Art

[0002] A scroll compressor is a positive-displacement compressor that compresses gas by the relative rotation of two meshing spiral scroll disks (a moving disk and a stationary disk), forming a continuously decreasing sealed cavity. It is widely used in air conditioners, refrigeration equipment, and the thermal management system of new energy vehicles, and has the advantages of high reliability and energy conservation.

[0003] In the prior art, the Chinese invention with the publication number CN110878751B discloses a scroll compressor, which can ensure the stable supply of lubricating oil to the thrust surface under any working conditions, and actively suck and spray lubricating oil by using the pressure difference, greatly increasing the supply amount of lubricating oil and significantly improving the oil supply and lubrication performance between the end face of the moving scroll disk and the thrust surface of the thrust plate.

[0004] However, currently, when the moving scroll disk and the stationary scroll disk of the scroll compressor rotate relative to each other, the end faces of the scroll disks are continuously rubbed. After long-term use, the sealing performance is easily reduced due to frictional wear, thus affecting the compression performance of the compressor. For this reason, the present invention proposes a highly wear-resistant scroll air-conditioning compressor assembly to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a highly wear-resistant scroll air-conditioning compressor assembly to solve the problem that the moving and stationary scroll disks are continuously worn during continuous use, affecting the sealing performance as described in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A highly wear-resistant scroll air-conditioning compressor assembly, comprising:

[0007] A housing, an upper inner cavity of the housing is provided with a stationary disk seat fixedly connected thereto. A through groove is vertically penetrated through the middle of the stationary disk seat to form a stationary scroll disk. A connecting disk is arranged above the stationary disk seat, and there is a gap between them. The connecting disk and the stationary disk seat are kept close to each other by the cooperation of bolts and tension nuts, and a compression spring for pressing the connecting disk is arranged between the tension nut and the connecting disk. A pressing disk is arranged below the connecting disk, and the pressing disk is located in the through groove opened in the middle of the stationary disk seat;

[0008] The movable disc seat is located below the static disc seat, and a movable scroll is fixed on the upper surface of the movable disc seat. The movable scroll is located in a through groove opened in the middle of the static disc seat and is staggered with the static scroll. A driving disc is provided below the movable disc seat, and an annular seal is bonded and fixed at the edge between the two. A through hole is opened in the middle of the movable disc seat, and the high-pressure gas between the movable scroll and the static scroll enters the gap between the movable disc seat and the driving disc through the through hole. The high-pressure gas pushes the movable disc seat to press the lower end surface of the static disc seat from bottom to top, and the movable scroll presses the lower surface of the compression disc from bottom to top.

[0009] Preferably, a retaining ring is fixed at the edge of the lower surface of the movable disc seat, and the retaining ring covers the outer side of the annular seal and the driving disc, a telescopic member is provided between the movable disc seat and the driving disc, and the two ends of the telescopic member are respectively fixedly connected to the movable disc seat and the driving disc, and the telescopic member is a telescopic rod.

[0010] Preferably, a partition plate is provided between the pressure plate and the connecting plate, a spiral elastic member is fixed on the surface of the partition plate, the elastic member is wavy along its own length direction, and the upper side is against the connecting plate, a tightening bolt is fixed on the surface of the pressure plate, and the upper end of the tightening bolt moves through the partition plate, the elastic member and the connecting plate in sequence, the upper end of the tightening bolt tightens the connecting plate through a nut, and the surfaces of the partition plate and the pressure plate are penetrated by a vortex groove for the static scroll plate to pass through.

[0011] Preferably, a washer is fixed to the lower end of the tightening bolt, and the washer is placed between the pressure plate and the partition plate, a sealing strip located at the edge of the vortex groove opening is bonded and fixed between the pressure plate and the partition plate, an exhaust pipe is fixed to the middle of the pressure plate, and the lower end of the exhaust pipe is connected to the middle of the inner cavity of the static plate seat, a connecting port is opened on the surface of the exhaust pipe, and the connecting port is connected to the gap between the pressure plate and the partition plate.

[0012] Preferably, a drive shaft is rotatably installed in the middle of the inner cavity of the shell, an eccentric plate is fixed to the upper end of the drive shaft, an eccentric shaft is fixed to one end of the eccentric plate, the axis of the eccentric shaft is parallel to and staggered with the axis of the drive shaft, and the eccentric shaft is rotatably installed in the middle of the lower surface of the drive disk through a bearing member, an anti-rotation sleeve is fixed at the edge of the lower surface of the drive disk, and the anti-rotation sleeve is a hollow long strip, the inner cavity of the anti-rotation sleeve is plugged with an anti-rotation boss slidably connected to it, a fixing seat is fixed to one end of the anti-rotation boss, and the fixing seat is fixedly connected to the inner wall of the shell.

[0013] Preferably, a stepped ring is fixedly arranged in the middle of the lower surface of the driving disk. A lower baffle is movably sleeved on the outer side of the eccentric shaft, and the lower baffle is fixedly connected with the stepped ring through bolts. A bearing groove for installing a bearing member is formed in the middle of the lower baffle. An upper baffle is attached to the upper end of the eccentric shaft. A polygonal slot is formed in the upper end surface of the eccentric shaft. A polygonal plug is fixedly arranged on the lower surface of the upper baffle, and the polygonal plug is movably inserted into the inner cavity of the polygonal slot and is adapted to it. The upper baffle and the eccentric shaft are fixedly connected through bolts, and the upper baffle presses the upper side of the bearing member.

[0014] Preferably, the upper end opening of the outer shell is covered with a top cover, and the two are fixedly connected through bolts. The top cover is a hollow structure with an upward convex shape, and a sound-absorbing plate is fixedly arranged in the inner cavity of the top cover. An exhaust connection pipe is fixedly arranged in the middle of the sound-absorbing plate, and one end of the exhaust connection pipe extends to the outside of the top cover.

[0015] Preferably, a pressing sleeve ring is formed by upward depression in the middle of the sound-absorbing plate, and the pressing sleeve ring is communicated with the other end of the exhaust connection pipe. The upper end of the exhaust pipe sequentially penetrates through the partition plate and the connecting disk and is inserted into the inner cavity of the pressing sleeve ring. A sealing layer is arranged at the joint where the upper end surface of the exhaust pipe and the inner wall of the pressing sleeve ring are in contact.

[0016] Preferably, an installation ring is fixedly arranged on the inner wall of the middle part of the outer shell. The driving shaft movably penetrates through the middle of the installation ring, and a sealing layer is arranged at the joint where the two are in contact. An air inlet is formed in the upper part of the inner side wall of the outer shell, and an air suction port is formed through the side wall of the static disk seat.

[0017] Preferably, a plurality of inner convex blocks distributed in a circular array are fixedly arranged on the upper end of the inner side wall of the outer shell. A plurality of outer convex blocks corresponding to the inner convex blocks one by one are fixedly arranged on the upper end of the side wall of the static disk seat, and the outer convex blocks and the inner convex blocks are fixedly connected through bolts. A plurality of tension bolts are arranged and spirally distributed along the length direction of the scroll groove. The plurality of tension bolts are arranged from the middle of the pressing disk to the edge, and the distance between two adjacent tension bolts increases in turn.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the present invention, a connecting plate is provided above the static disk seat, and a pressing plate is provided below the connecting plate. The connecting plate approaches the static disk seat through the cooperation of a tension nut and a pressing spring, and presses the pressing plate against the upper end surface of the moving scroll disk. When the upper end surface of the moving scroll disk is worn, the pressing plate can automatically move downward and continuously keep in close contact with the moving scroll disk to ensure sealing. At the same time, a through hole opened on the surface of the moving disk seat allows high-pressure gas to enter between the moving disk seat and the driving disk, and the high-pressure gas pushes the moving disk seat and the moving scroll disk upward, ensuring that the moving disk seat and the static scroll disk, as well as the moving scroll disk and the pressing plate, always maintain a pressed and fitted state, so as to ensure that the device can still maintain high sealing performance during long-term continuous use and avoid gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional view of the overall structure of the present invention;

[0021] Figure 2 is an internal schematic view of the overall structure of the present invention;

[0022] Figure 3 is an installation schematic view of the structures of the moving scroll disk and the static scroll disk of the present invention;

[0023] Figure 4 is an exploded schematic view of the structures of the moving disk seat, the static disk seat and the connecting plate of the present invention;

[0024] Figure 5 is an exploded schematic view of the structures of the pressing plate and the partition plate of the present invention;

[0025] Figure 6 is a connection schematic view of the static disk seat and the housing of the present invention;

[0026] Figure 7 is a connection schematic view of the moving disk seat and the drive shaft of the present invention;

[0027] Figure 8 is a three-dimensional schematic view of the structure of the driving disk of the present invention;

[0028] Figure 9 is an exploded schematic view of the structure of the drive shaft of the present invention;

[0029] Figure 10 is a partial three-dimensional schematic view of the structure of the elastic member of the present invention;

[0030] Figure 11 is an internal schematic view of the structure of the top cover of the present invention.

[0031] In the figure: 1. Outer shell; 11. Inner convex block; 12. Fixed seat; 13. Anti-rotation convex platform; 14. Air inlet; 15. Mounting ring; 2. Moving disk seat; 21. Moving scroll disk; 22. Driving disk; 221. Anti-rotation sleeve; 222. Step ring; 23. Annular seal; 24. Through hole; 25. Retaining ring; 26. Telescopic member; 3. Stationary disk seat; 31. Stationary scroll disk; 32. Suction port; 33. Outer convex block; 4. Connecting disk; 5. Compression disk; 51. Partition plate; 52. Sealing strip; 53. Tightening bolt; 531. Pad disk; 541. Communication port; 54. Exhaust pipe; 55. Scroll groove; 56. Elastic member; 57. Tightening nut; 58. Compression spring; 6. Driving shaft; 61. Eccentric plate; 62. Eccentric shaft; 621. Polygonal slot; 631. Bearing groove; 651. Polygonal insert block; 63. Lower baffle; 64. Bearing member; 65. Upper baffle; 7. Top cover; 71. Sound-absorbing plate; 72. Exhaust connection pipe; 73. Compression sleeve ring. Detailed implementation mode

[0032] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 to 11 , the present invention provides a technical solution:

[0034] Embodiment 1, a highly wear-resistant scroll air-conditioning compressor assembly, comprising: an outer shell 1 and a moving disk seat 2.

[0035] Specifically, a stationary disk seat 3 fixedly connected thereto is arranged in the upper inner cavity of the outer shell 1. The stationary disk seat 3 and the outer shell 1 are detachably fixedly connected. The connection structure between the two will be described in detail later. A through groove is vertically penetrated through the middle of the stationary disk seat 3 to form a stationary scroll disk 31, as Figure 6As shown, the through groove opened in the middle of the static disc seat 3 and the static vortex disc 31 formed are both vortex structures, and the upper and lower end surfaces of the static disc seat 3 and the static vortex disc 31 are kept flush, a connecting disc 4 is provided above the static disc seat 3, and a gap is left between the two, the connecting disc 4 and the static disc seat 3 are kept close to each other by the cooperation of the bolts and the tightening nuts 57, and a compression spring 58 is provided between the tightening nuts 57 and the connecting disc 4 to press the connecting disc 4, and since there is a certain gap between the connecting disc 4 and the static disc seat 3, the connecting disc 4 can be in a certain position. When the connecting plate 4 moves closer to or away from the static plate seat 3 within a certain distance, the setting of the compression spring 58 is used to apply a compression force to the connecting plate 4, so that the connecting plate 4 always has a tendency to move closer to the static plate seat 3, and a compression plate 5 is provided below the connecting plate 4. The compression plate 5 and the connecting plate 4 are connected to each other, and their connection structure will be described in detail later. The compression plate 5 is located in the through groove opened in the middle of the static plate seat 3. When the connecting plate 4 moves, it can drive the compression plate 5 to move accordingly, so that the compression plate 5 can move up and down in the through groove opened in the middle of the static plate seat 3;

[0036] Secondly, the movable disc seat 2 is located below the static disc seat 3, and a movable scroll 21 is fixed on the upper surface of the movable disc seat 2. The movable scroll 21 is located in the through groove opened in the middle of the static disc seat 3 and is staggered with the static scroll 31. When the movable scroll 21 and the static scroll 31 move relative to each other, the air at the edges of the two is gradually squeezed and compressed toward the center, so that the air pressure can gradually increase. A driving disc 22 is provided below the movable disc seat 2, and an annular seal 23 is bonded and fixed at the edge between the two. The setting of the annular seal 23 is used to ensure the movable disc The gap between the seat 2 and the driving plate 22 is in a sealed state. A through hole 24 is provided in the middle of the movable plate seat 2. The high-pressure gas between the movable scroll 21 and the fixed scroll 31 enters the gap between the movable plate seat 2 and the driving plate 22 through the through hole 24. Since the through hole 24 is located in the middle of the movable plate seat 2, and the gas here has been compressed to the maximum pressure state, the high-pressure gas can push the movable plate seat 2 to press the lower end surface of the fixed plate seat 3 from bottom to top, and the movable scroll 21 presses the lower surface of the compression plate 5 from bottom to top. Figure 3 and Figure 7 As shown, combined with the existing known technology, it can be known that when the movable scroll 21 and the static scroll 31 move relative to each other, the air pressure at the center of the two is greater than the air pressure at the edge. The present device opens a through hole 24 at the center of the movable disk seat 2 and introduces part of the high-pressure gas between the movable disk seat 2 and the drive disk 22, so that the movable disk seat 2 can always be pressed tightly against the lower surface of the static scroll 31, and at the same time, the upper end face of the movable scroll 21 is always pressed tightly against the lower surface of the compression disk 5. That is to say, even if friction loss occurs on the end faces of the movable scroll 21 and the static scroll 31 during use, the present device can automatically adjust the relative positions of the two in the vertical direction through the high-pressure gas to ensure that the cavity between the two is always in a sealed state to avoid gas leakage.

[0037] In order to prevent the annular seal 23 from being damaged by excessive deformation, the present application also has a retaining ring 25 fixed at the edge of the lower surface of the movable disc seat 2, and the retaining ring 25 covers the outer side of the annular seal 23 and the driving disc 22. The retaining ring 25 is set to limit the annular seal 23. Since high-pressure gas is filled between the movable disc seat 2 and the driving disc 22, the annular seal 23 will elastically deform and bulge outward under the action of the high-pressure gas. At this time, the retaining ring 25 just rests against the outer side wall of the annular seal 23, preventing the annular seal 23 from being broken due to excessive deformation. A telescopic member 26 is provided between the movable disc seat 2 and the driving disc 22, and the two ends of the telescopic member 26 are fixedly connected to the movable disc seat 2 and the driving disc 22 respectively. The telescopic member 26 is a telescopic rod. The setting of the telescopic member 26 can, on the one hand, limit the distance between the movable disc seat 2 and the driving disc 22, and on the other hand, prevent the movable disc seat 2 and the driving disc 22 from rotating relative to each other.

[0038] In order to ensure that the movable scroll 21 and the pressure plate 5 always maintain a tight fit, the present application also has a partition plate 51 provided between the pressure plate 5 and the connecting plate 4. A spiral elastic member 56 is fixed to the surface of the partition plate 51. The elastic member 56 is wavy along its own length direction, and the upper side is against the connecting plate 4. The elastic member 56 is located between the partition plate 51 and the connecting plate 4 and is squeezed by both. The elastic member 56 itself can undergo elastic deformation, thereby pushing the partition plate 51 to always have a tendency to move close to the pressure plate 5. A tightening bolt 53 is fixed on the surface of the pressure plate 5, and the upper end of the tightening bolt 53 is movable through the partition plate 51, the elastic member 56 and the connecting plate 4 in turn. The upper end of the tightening bolt 53 is tightened to the connecting plate 4 through a nut Tight, since the pressure plate 5 and the connecting plate 4 are tightened by the tensioning bolts 53, the thrust provided by the elastic member 56 makes the pressure plate 5 and the connecting plate 4 always tend to move away from each other. When the movable scroll 21 squeezes the lower surface of the pressure plate 5 from bottom to top, the compression spring 58 can push the connecting plate 4 to move downward, and the elastic member 56 can push the pressure plate 5 to move downward, thereby ensuring that the pressure plate 5 can always maintain a tight fit with the movable scroll 21. In addition, the surfaces of the partition plate 51 and the pressure plate 5 are penetrated by a vortex groove 55 for the static scroll 31 to pass through, that is, the partition plate 51 and the pressure plate 5 can both be displaced in the up and down directions within the through groove opened in the middle of the static plate seat 3.

[0039] To improve the sealing performance of this device, this application also has a cushion plate 531 fixed to the lower end of the tension bolt 53, and the cushion plate 531 is placed between the pressure plate 5 and the partition plate 51. A sealing layer is also provided on the surface of the cushion plate 531. When the partition plate 51 approaches the pressure plate 5 under the thrust of the elastic member 56 and presses the cushion plate 531, the sealing layer on the surface of the cushion plate 531 can effectively improve the sealing performance between the two, preventing gas between the two from leaking along the surface of the tension bolt 53. A sealing strip 52 is adhesively fixed between the pressure plate 5 and the partition plate 51 at the opening edge of the scroll groove 55. As Figure 5 shown, the sealing strip 52 actually includes two spiral structures, and the heads and tails of these two spiral structures are correspondingly connected to form a complete whole. Since the stationary scroll plate 31 passes through the scroll groove 55 and the sealing strip 52 corresponds to the opening edge of the scroll groove 55, the side surface of the sealing strip 52 can be kept in close contact with the stationary scroll plate 31, thereby preventing gas between the stationary scroll plate 31 and the moving scroll plate 21 from leaking between the stationary scroll plate 31 and the scroll groove 55. In addition, an exhaust pipe 54 is fixed in the middle of the pressure plate 5, and the lower end of the exhaust pipe 54 communicates with the middle part of the inner cavity of the stationary disk seat 3. A communication port 541 is provided on the surface of the exhaust pipe 54, and the communication port 541 communicates with the gap between the pressure plate 5 and the partition plate 51. Since the exhaust pipe 54 communicates with the center between the moving scroll plate 21 and the stationary scroll plate 31, where the gas pressure reaches the maximum and is high-pressure gas, the high-pressure gas can enter the gap between the pressure plate 5 and the partition plate 51 through the communication port 541. Under the action of the high-pressure gas, the sealing strip 52 will undergo elastic deformation and thus press tightly against the stationary scroll plate 31 to prevent a gap from being generated between the stationary scroll plate 31 and the scroll groove 55, resulting in gas leakage between the moving scroll plate 21 and the stationary scroll plate 31, thereby effectively improving the sealing performance of this device.

[0040] In order to drive the movable scroll 21 to rotate and displace, the present application also has a driving shaft 6 rotatably installed in the middle of the inner cavity of the shell 1, and an eccentric plate 61 is fixed to the upper end of the driving shaft 6, and an eccentric shaft 62 is fixed to one end of the eccentric plate 61. The axis of the eccentric shaft 62 is parallel to and staggered with the axis of the driving shaft 6. The driving shaft 6 itself can rotate, and when the driving shaft 6 rotates, the eccentric shaft 62 is driven to rotate by the eccentric plate 61. However, since the axis of the eccentric shaft 62 is staggered with the axis of the driving shaft 6, the eccentric shaft 62 will rotate around the axis of the driving shaft 6, and the eccentric shaft 62 is rotatably installed in the middle of the lower surface of the driving disk 22 through a bearing 64. When the driving shaft 6 rotates, the eccentric shaft 62 can drive the driving disk 22, the movable disk seat 2 and the movable scroll 21 to displace. The direction is to rotate around the axis of the driving shaft 6, thereby realizing the compression of the gas between the movable scroll 21 and the static scroll 31, and an anti-rotation sleeve 221 is fixedly provided at the edge of the lower surface of the driving disk 22, and the anti-rotation sleeve 221 is a hollow long strip, and the inner cavity of the anti-rotation sleeve 221 is inserted with an anti-rotation boss 13 slidingly connected thereto, and a fixed seat 12 is fixed at one end of the anti-rotation boss 13, and the fixed seat 12 is fixedly connected to the inner wall of the outer shell 1, and the cooperation of the anti-rotation sleeve 221 and the anti-rotation boss 13 is used to limit the driving disk 22 to prevent the driving disk 22 from rotating itself. That is to say, the driving disk 22, the movable disk seat 2 and the movable scroll 21 of the present device can only perform rotational displacement (revolution) around the driving shaft 6, and will not rotate (rotate) themselves.

[0041] In order to facilitate the installation of the bearing member 64 and ensure its stability after installation, the present application also has a stepped ring 222 fixedly provided in the middle of the lower surface of the driving disk 22, and the outer side of the eccentric shaft 62 is movably sleeved with a lower baffle 63, and the lower baffle 63 is fixedly connected to the stepped ring 222 by bolts, and a bearing groove 631 for the installation of the bearing member 64 is opened in the middle of the lower baffle 63, and the upper end of the eccentric shaft 62 is affixed with an upper baffle 65, and the upper end surface of the eccentric shaft 62 is provided with a polygonal slot 621, and a polygonal plug-in block 651 is fixed to the lower surface of the upper baffle 65, and the polygonal plug-in block 651 is movably inserted into the inner cavity of the polygonal slot 621 and adapted thereto, and the upper baffle 65 and the eccentric shaft 62 are fixedly connected by bolts, and the upper baffle 65 presses the upper side of the bearing member 64, combined with Figure 8 and Figure 9 As shown, the eccentric shaft 62 and the drive disk 22 maintain relative rotational connection through the bearing member 64, and the two will not separate from each other. After the lower baffle 63 is fixedly connected to the drive disk 22 with bolts, the inner wall of the bearing groove 631 can limit the lower side of the bearing member 64, and then cooperate with the upper baffle 65 to limit the upper side of the bearing member 64, thereby avoiding the separation between the bearing member 64 and the eccentric shaft 62, thereby ensuring the stability of the connection between the drive shaft 6 and the drive disk 22, and the drive shaft 6 can stably drive the dynamic disk seat 2 to rotate and displace.

[0042] In order to seal the outer shell 1, the present application also has a top cover 7 covering the upper end opening of the outer shell 1, and the two are fixedly connected by bolts. The top cover 7 is a hollow structure that is convex upward, and a silencer plate 71 is fixedly provided in the inner cavity of the top cover 7. The silencer plate 71 is provided to absorb and reduce the noise generated when the device is working to avoid noise pollution. An exhaust pipe 72 is fixedly provided in the middle of the silencer plate 71, and one end of the exhaust pipe 72 extends to the outside of the top cover 7. The exhaust pipe 72 is provided to discharge the high-pressure gas generated when the device is working.

[0043] In order to connect the exhaust connecting pipe 72 with the exhaust pipe 54, the present application also has a compression ring 73 formed in the middle of the silencer plate 71, which is recessed upward, and the compression ring 73 is connected to the other end of the exhaust connecting pipe 72. The upper end of the exhaust pipe 54 passes through the partition plate 51 and the connecting plate 4 in sequence, and is inserted into the inner cavity of the compression ring 73. A sealing layer is provided at the joint between the upper end surface of the exhaust pipe 54 and the inner wall of the compression ring 73. When the top cover 7 is installed from top to bottom at the upper end opening of the outer shell 1 and the two are tightened and fixed by bolts, the compression ring 73 can be smoothly installed on the upper end of the exhaust pipe 54 and press the upper end surface of the exhaust pipe 54, so that the exhaust pipe 54 and the exhaust connecting pipe 72 remain connected and avoid leakage of high-pressure gas.

[0044] In order to facilitate the device to inhale air from the outside, the present application also has a mounting ring 15 fixedly provided on the inner wall of the middle part of the shell 1, the drive shaft 6 movably passes through the middle of the mounting ring 15, and a sealing layer is provided at the joint between the two. An air inlet 14 is provided on the upper part of the inner wall of the shell 1, and an air inlet 32 is provided through the side wall of the static disk seat 3. Figure 1 As shown, external air can enter the inner cavity of the outer shell 1 through the air inlet 14, and then enter the inner cavity of the static disk seat 3 through the air intake 32, so that the movable scroll 21 and the static scroll 31 can cooperate with each other to compress the gas. In addition, in order to ensure that the air inhaled by this device is cleaner, a filtering structure known in the prior art can also be set on the air flow path between the air inlet 14 and the air intake 32, which will not be repeated here.

[0045] For the convenience of installing and disassembling the static disk seat 3, the present application further has a plurality of inner convex blocks 11 fixedly arranged at the upper end of the inner side wall of the housing 1 and distributed in an annular array. An outer convex block 33 corresponding to each of the plurality of inner convex blocks 11 is fixedly arranged at the upper end of the side wall of the static disk seat 3, and the outer convex block 33 and the inner convex block 11 are fixedly connected by bolts. The cooperation between the outer convex block 33 and the inner convex block 11 can be used for installing and positioning the static disk seat 3, and the two can be separated from each other by relative rotation. In addition, a plurality of tension bolts 53 are provided and spirally distributed along the length direction of the scroll groove 55, and the distances between the plurality of tension bolts 53 gradually increase from the middle of the pressing disk 5 to the edge. Since the air pressure at the center between the moving scroll disk 21 and the static scroll disk 31 is the largest and the air pressure at the edge is smaller, by arranging the plurality of tension bolts 53 in a specific distribution, the sealing performance of the present device can be further improved.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant scroll air-conditioning compressor assembly, characterized in that: Comprising: A housing (1), in the upper end inner cavity of the housing (1), there is a static disc seat (3) fixedly connected thereto. In the middle of the static disc seat (3), a through slot is vertically penetrated to form a static scroll plate (31). Above the static disc seat (3), there is a connecting disc (4), and a gap is left between the two. Between the connecting disc (4) and the static disc seat (3), they are kept close to each other through the cooperation of bolts and tension nuts (57), and between the tension nut (57) and the connecting disc (4), there is a compression spring (58) for pressing the connecting disc (4). Below the connecting disc (4), there is a pressing disc (5), and the pressing disc (5) is located in the through slot opened in the middle of the static disc seat (3); A moving disc seat (2), the moving disc seat (2) is located below the static disc seat (3). On the upper surface of the moving disc seat (2), a moving scroll plate (21) is fixed. The moving scroll plate (21) is located in the through slot opened in the middle of the static disc seat (3) and is staggered with the static scroll plate (31). Below the moving disc seat (2), there is a driving disc (22), and at the edge between the two, an annular seal (23) is adhesively fixed. In the middle of the moving disc seat (2), a through hole (24) is opened. The high-pressure gas between the moving scroll plate (21) and the static scroll plate (31) enters the gap between the moving disc seat (2) and the driving disc (22) through the through hole (24). The high-pressure gas pushes the moving disc seat (2) to press and fit against the lower end face of the static disc seat (3) from bottom to top, and the moving scroll plate (21) presses and fits against the lower surface of the pressing disc (5) from bottom to top; Between the pressing disc (5) and the connecting disc (4), there is a partition plate (51). On the surface of the partition plate (51), a spiral elastic member (56) is fixed. The elastic member (56) is wavy along its own length direction and abuts against the connecting disc (4) on the upper side. On the surface of the pressing disc (5), a tension bolt (53) is fixed, and the upper end of the tension bolt (53) sequentially passes through the partition plate (51), the elastic member (56), and the connecting disc (4) movably. The upper end of the tension bolt (53) tightens the connecting disc (4) through a nut. On the surfaces of the partition plate (51) and the pressing disc (5), scroll slots (55) for the static scroll plate (31) to pass through are vertically penetrated.

2. The high-wear-resistant scroll air-conditioning compressor assembly according to claim 1, wherein: At the edge of the lower surface of the moving disc seat (2), a retaining ring (25) is fixed, and the retaining ring (25) covers the outside of the annular seal (23) and the driving disc (22). Between the moving disc seat (2) and the driving disc (22), there is an expansion member (26), and the two ends of the expansion member (26) are respectively fixedly connected to the moving disc seat (2) and the driving disc (22). The expansion member (26) is an expansion rod.

3. The high-wear-resistant scroll air-conditioning compressor assembly according to claim 2, characterized in that: A cushion plate (531) is fixed to the lower end of the tension bolt (53), and the cushion plate (531) is placed between the pressing plate (5) and the partition plate (51). A sealing strip (52) located at the opening edge of the scroll groove (55) is adhesively fixed between the pressing plate (5) and the partition plate (51). An exhaust pipe (54) is fixed to the middle of the pressing plate (5), and the lower end of the exhaust pipe (54) communicates with the middle part of the inner cavity of the stationary disk seat (3). A communication port (541) is formed on the surface of the exhaust pipe (54), and the communication port (541) communicates with the gap between the pressing plate (5) and the partition plate (51).

4. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 3, characterized in that: A drive shaft (6) is rotatably installed in the middle of the inner cavity of the housing (1). An eccentric plate (61) is fixed to the upper end of the drive shaft (6). One end of the eccentric plate (61) is fixed with an eccentric shaft (62). The axis of the eccentric shaft (62) is parallel to and offset from the axis of the drive shaft (6). The eccentric shaft (62) is rotatably installed in the middle of the lower surface of the drive disk (22) through a bearing member (64). A rotation prevention sleeve (221) is fixedly arranged at the edge of the lower surface of the drive disk (22), and the rotation prevention sleeve (221) is in the shape of a hollow strip. A rotation prevention boss (13) that is slidably connected to it is inserted into the inner cavity of the rotation prevention sleeve (221). One end of the rotation prevention boss (13) is fixed with a fixed seat (12), and the fixed seat (12) is fixedly connected to the inner wall of the housing (1).

5. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 4, characterized in that: A stepped ring (222) is fixedly arranged in the middle of the lower surface of the drive disk (22). A lower baffle (63) is movably sleeved outside the eccentric shaft (62), and the lower baffle (63) is fixedly connected to the stepped ring (222) by bolts. A bearing groove (631) for installing the bearing member (64) is formed in the middle of the lower baffle (63). An upper baffle (65) is attached to the upper end of the eccentric shaft (62). A polygonal slot (621) is formed on the upper end surface of the eccentric shaft (62). A polygonal insert block (651) is fixed to the lower surface of the upper baffle (65), and the polygonal insert block (651) is movably inserted into the inner cavity of the polygonal slot (621) and is adapted to it. The upper baffle (65) is fixedly connected to the eccentric shaft (62) by bolts, and the upper baffle (65) presses the upper side of the bearing member (64).

6. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 5, characterized in that: The upper end opening of the housing (1) is covered with a top cover (7), and the two are fixedly connected by bolts. The top cover (7) has a convex and hollow structure, and a sound absorption plate (71) is fixedly arranged in the inner cavity of the top cover (7). An exhaust connection pipe (72) is fixedly arranged in the middle of the sound absorption plate (71), and one end of the exhaust connection pipe (72) extends to the outside of the top cover (7).

7. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 6, characterized in that: A pressing sleeve ring (73) is formed by the middle part of the sound absorption plate (71) being recessed upward, and the pressing sleeve ring (73) communicates with the other end of the exhaust connection pipe (72). The upper end of the exhaust pipe (54) sequentially penetrates through the partition plate (51) and the connection disk (4), and is inserted into the inner cavity of the pressing sleeve ring (73). A sealing layer is provided at the joint where the upper end surface of the exhaust pipe (54) fits with the inner wall of the pressing sleeve ring (73).

8. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 7, characterized in that: An installation ring (15) is fixedly arranged on the inner wall of the middle part of the housing (1). The driving shaft (6) movably penetrates through the middle part of the installation ring (15), and a sealing layer is arranged at the joint where the two are in contact. An air inlet (14) is formed in the upper part of the inner side wall of the housing (1), and an air suction port (32) penetrates through the side wall of the static disc seat (3).

9. A highly wear-resistant scroll air-conditioning compressor assembly according to claim 8, characterized in that: A plurality of inner convex blocks (11) distributed in a circular array are fixed at the upper end of the inner side wall of the housing (1). Outer convex blocks (33) corresponding to the plurality of inner convex blocks (11) one by one are fixed at the upper end of the side wall of the static disc seat (3), and the outer convex blocks (33) and the inner convex blocks (11) are fixedly connected by bolts. A plurality of tension bolts (53) are arranged and spirally distributed along the length direction of the scroll groove (55), and the distances between every two of the plurality of tension bolts (53) gradually increase from the middle of the pressing disc (5) to the edge.

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