Modified nylon scroll air conditioner compressor

Abstract

The application relates to the technical field of air conditioner compressors, in particular to a modified nylon scroll air conditioner compressor, which comprises a first shell, a second shell below the first shell, a scroll moving disc, a scroll static disc and an air inlet and outlet seat at the bottom of the second shell, the lower surface of the scroll moving disc is provided with dynamic scroll pieces, the scroll static disc is provided with static scroll pieces, an air outlet is arranged at the central position of the scroll static disc, an air inlet is arranged at the edge position of the scroll static disc, a plurality of oil outlets are equidistantly arranged at the top end of the static scroll pieces, and a communication cavity for communicating all the oil outlets is arranged in the static scroll pieces. The application is provided with a plurality of oil outlets at the top end of the static scroll pieces, and the oil outlets are supplied with oil through a pumping mechanism; when the compressor is working, the pumping mechanism is driven to work by the scroll moving disc during rotation, so that the oil outlets can extrude oil outward, the contact surface of the static scroll pieces and the scroll moving disc is lubricated, the abrasion between the parts is reduced, the working efficiency can be improved, and the noise and vibration can be reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioning compressor technology, specifically to a modified nylon scroll air conditioning compressor. Background Technology

[0002] A scroll compressor is a type of compressor that uses two scroll blades to compress gas. This design makes it widely used in air conditioning and refrigeration systems. The working principle of a scroll compressor relies on two cooperating scroll plates, one of which is fixed, while the other is driven to rotate by an electric motor. Gas enters the scroll compressor and is drawn into the space between the scroll plates. During rotation, the gas is gradually compressed and moves towards the center along the scroll's trajectory, eventually being discharged. This compression method differs from traditional piston compressors, which compress gas through the reciprocating motion of a piston. The relative motion between the scroll plates in a scroll compressor provides a smoother and more continuous gas compression process.

[0003] A search revealed that invention patent CN107575386B provides a scroll-type automotive air conditioning compressor, comprising an end cover, a fixed scroll, a moving scroll, a scroll support plate, an eccentric shaft, a stator coil, and a cylinder. The cylinder is cylindrical, and the stator coil is located around the eccentric shaft. One end of the eccentric shaft is fixed to the bottom of the cylinder via a bearing, and the other end is connected to the scroll support plate. A fixed scroll is located on the outer side of the scroll support plate, and a moving scroll is located on the inner side of the fixed scroll. The end cover is adapted to the fixed scroll and is located on the outer side of the fixed scroll.

[0004] As illustrated in the invention above, air conditioner compressors are generally placed vertically during use and installation. This is because horizontal placement would subject the bearings and impellers to horizontal loads, accelerating wear on the impellers and bearings and thus affecting the compressor's lifespan. Furthermore, horizontal installation of the compressor also affects gas flow and compression efficiency, degrading its performance. However, inside the compressor, the tips of the moving and stationary scroll vanes rub against each other. To reduce wear on the scroll vanes, lubricating oil is added for lubrication. In a vertically installed compressor, gravity causes the lubricating oil at the top to fall off, making it difficult to retain on the moving scroll vanes. This results in greater wear at the top, affecting performance and lifespan. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a modified nylon scroll air conditioning compressor, which can effectively solve the problem of poor lubrication caused by the difficulty in maintaining the top lubricating oil inside the prior art air conditioning compressor.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A modified nylon scroll air conditioning compressor includes a first housing, a second housing below the first housing, a scroll moving plate, a scroll stationary plate, and an inlet and outlet seat at the bottom of the second housing. A moving scroll blade is provided on the lower surface of the scroll moving plate, and a stationary scroll blade is provided inside the scroll stationary plate. An outlet is provided at the center of the scroll stationary plate, and an inlet is provided at the edge of the scroll stationary plate. Multiple oil outlet holes are provided at equal intervals at the top of the stationary scroll blade, and a connecting cavity connecting all the oil outlet holes is provided inside the stationary scroll blade.

[0008] The inner wall of the vortex stationary disk is also provided with a boss, and an oil inlet is opened at the bottom of the boss. An oil pumping mechanism is installed on the boss, and the oil pumping mechanism draws oil from the oil inlet and discharges it into the communicating cavity.

[0009] The oil pumping mechanism includes a piston rod elastically inserted into a boss, and a lifting structure that cooperates with the piston rod is provided on the lower surface of the scroll plate. The oil pumping mechanism is controlled by the interaction of the piston rod and the lifting structure. When the oil pumping mechanism is working, it draws oil upwards from the bottom oil inlet, then passes the oil into the connecting cavity, and finally allows the oil to emerge from each oil outlet to lubricate the contact surfaces of the scroll plate and the scroll stationary plate.

[0010] In the modified nylon scroll air conditioning compressor described above, the oil pumping mechanism further includes a piston at the bottom of the piston rod. The inside of the boss is provided with a piston chamber adapted to the piston. The bottom of the piston chamber is provided with an oil suction hole communicating with the oil inlet. A first one-way valve is installed inside the oil suction hole. The first one-way valve only allows oil to flow from bottom to top. An oil discharge passage is provided on the side wall at the bottom of the piston chamber. The oil discharge passage extends into the connecting cavity. A second one-way valve is provided in the oil discharge passage. The second one-way valve only allows oil to be discharged into the connecting cavity.

[0011] When the piston rod moves upward, the piston moves upward as well, creating a negative pressure inside the piston chamber. Due to the presence of the second one-way valve, oil will not enter the piston chamber from the connecting chamber. The piston chamber draws oil upward from the oil inlet through the oil suction hole. When the piston rod drives the piston downward, because the first one-way valve only allows oil to flow from bottom to top, the oil in the piston chamber cannot flow back downward to the oil inlet. At this time, the oil enters the connecting chamber through the oil discharge passage and overflows from the various oil outlet holes. Therefore, oil can be pumped upward from the bottom of the scroll stationary plate simply by controlling the piston rod to move up and down through the lifting structure. The oil is discharged through the oil outlet holes to lubricate the contact surfaces of the scroll moving plate and the scroll stationary plate.

[0012] In the modified nylon scroll air conditioning compressor described above, a top spring is provided at the bottom of the piston chamber, and the lifting structure includes a sliding groove formed on the lower surface of the scroll moving plate. The sliding groove is for the piston rod to move, and the top wall of the sliding groove is provided with a recessed part and a protruding part respectively.

[0013] In the modified nylon scroll air conditioner compressor described above, the recessed portion and the raised portion are arranged opposite to each other, and both the recessed portion and the raised portion are smoothly connected to the slide groove.

[0014] In the modified nylon scroll air conditioning compressor described above, the bottom surface of the scroll stationary plate and the inner bottom surface of the second housing form a high-pressure sealing cavity. The exhaust port is connected to the high-pressure sealing cavity. The interior of the high-pressure sealing cavity is provided with an oil drain groove and an oil drain hole. The oil drain groove and the oil drain hole are used to reintroduce the oil into the outer ring area inside the scroll stationary plate.

[0015] In the modified nylon scroll air conditioning compressor described above, a filter element is installed at the opening of the oil inlet.

[0016] In the aforementioned modified nylon scroll air conditioning compressor, the first housing, the second housing, the scroll moving plate, and the scroll stationary plate are all made of modified nylon material.

[0017] In the modified nylon scroll air conditioning compressor described above, an oil storage tank and an air hole are provided at the bottom of both the scroll moving plate and the scroll stationary plate. The oil storage tank and the air hole are connected and are located on the outer ring of the scroll moving plate and the scroll stationary plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Multiple oil outlet holes are opened at the top of the stationary scroll vane, and oil is supplied to the oil outlet holes through the oil pumping mechanism. When the compressor is working, the scroll plate rotates and drives the oil pumping mechanism to work, so that oil flows out of the oil outlet holes, lubricating the contact surface between the stationary scroll vane and the scroll plate, reducing wear between parts, improving working efficiency, and reducing noise and vibration.

[0020] 2. The first housing, the second housing, the scroll moving plate, and the scroll stationary plate are all made of modified nylon material. Modified nylon material has better energy absorption effect and anti-resonance performance than metal material, and has higher wear resistance and noise reduction performance, which comprehensively improves the performance of the compressor.

[0021] 3. Oil reservoirs and air vents are provided at the bottom of the outer ring of both the rotating and stationary scroll plates. The oil reservoirs store a small amount of lubricating oil to lubricate the rotating and stationary scroll plates. The air vents increase the saturation of the intake air, reduce the negative pressure during operation, and thus save energy. Furthermore, when the air is drawn in, it sprays the lubricating oil from the reservoirs, dispersing the oil and further improving the lubrication effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a top structural diagram of the vortex stationary disk of the present invention;

[0026] Figure 4 This is a bottom structural diagram of the vortex stationary disk of the present invention;

[0027] Figure 5 This is a cross-sectional view of the vortex stationary disk of the present invention;

[0028] Figure 6 for Figure 5 Enlarged view of the structure at point A in the image;

[0029] Figure 7 This is a top structural diagram of the vortex rotating disk of the present invention;

[0030] Figure 8 This is a bottom structural diagram of the vortex rotating disk of the present invention;

[0031] Figure 9 for Figure 8 Enlarged view of the structure at point B in the image.

[0032] The labels in the diagram represent: 1. First housing; 2. Second housing; 3. Inlet / outlet seat; 301. Low-pressure intake pipe; 302. High-pressure exhaust pipe; 4. Scroll moving plate; 5. Scroll stationary plate; 6. Moving scroll vane; 7. Stationary scroll vane; 8. Boss; 9. Oil pumping mechanism; 901. Piston chamber; 902. Piston; 903. Piston rod; 904. Top spring; 905. Oil suction hole; 906. First check valve; 907. Oil discharge passage; 908. Second check valve; 10. Connecting cavity; 11. Oil inlet; 12. Exhaust port; 13. Oil outlet; 14. Air inlet; 15. Oil discharge groove; 16. Oil discharge hole; 17. Oil storage tank; 18. Air hole; 19. Lifting structure; 1901. Slide groove; 1902. Recessed part; 1903. Protruding part; 20. High-pressure sealing cavity. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example: Refer to Figure 1-9 A modified nylon scroll air conditioning compressor includes a first housing 1, a second housing 2 below the first housing 1, a scroll moving plate 4, a scroll stationary plate 5, and an inlet / outlet seat 3 at the bottom of the second housing 2. A moving scroll plate 6 is disposed on the lower surface of the scroll moving plate 4, and a stationary scroll plate 7 is disposed inside the scroll stationary plate 5. The top of the scroll moving plate 4 is connected to an eccentric crankshaft, which extends to the outside of the first housing 1 and is driven by a pulley or motor to rotate the scroll moving plate 4 eccentrically, cooperating with the scroll stationary plate 5. An exhaust port 12 is provided at the center of the scroll stationary plate 5, and an air inlet 14 is provided at its edge. Multiple oil outlet holes 13 are evenly spaced at the top of the stationary scroll plate 7, and a communicating cavity 10 communicating with the oil outlet holes 13 is provided inside the stationary scroll plate 7.

[0036] The scroll rotating disk 4 and the scroll stationary disk 5 have basically the same scroll shape, but the scroll lines are 180 degrees out of phase, and their axes are combined eccentrically to form a compression chamber between the two scrolls. The compression chamber is crescent-shaped. After the gas enters the scroll compressor through the inlet 14, it is drawn into the space between the scroll rotating disk 4 and the scroll stationary disk 5. During rotation, the gas is gradually compressed and moves towards the center along the trajectory of the scroll, and finally the compressed gas is discharged from the exhaust port 12.

[0037] After the lubricating oil emerges from the oil outlet 13, it adheres to the lower surface of the scroll rotating disk 4, thereby lubricating both the scroll rotating disk 4 and the scroll stationary disk 5. The inner wall of the scroll stationary disk 5 is also provided with a boss 8, and the bottom of the boss 8 has an oil inlet 11. An oil pumping mechanism 9 is installed on the boss 8, and the oil pumping mechanism 9 draws oil from the oil inlet 11 and discharges it into the connecting cavity 10.

[0038] The oil pumping mechanism 9 includes a piston rod 903 elastically inserted into the boss 8, and a lifting structure 19 that cooperates with the piston rod 903 on the lower surface of the scroll plate 4. The oil pumping mechanism 9 is controlled by the cooperation of the piston rod 903 and the lifting structure 19. When the oil pumping mechanism 9 is working, it can draw oil upward from the oil inlet 11 at the bottom, and then pass the oil into the connecting cavity 10, so that the oil can finally emerge from each oil outlet 13 to lubricate the contact surface of the scroll plate 4 and the scroll stationary plate 5.

[0039] Reference Figure 6 The oil pumping mechanism 9 also includes a piston 902 at the bottom end of the piston rod 903. The inside of the boss 8 is provided with a piston chamber 901 adapted to the piston 902. The bottom of the piston chamber 901 is provided with an oil suction hole 905 communicating with the oil inlet 11. A first one-way valve 906 is installed inside the oil suction hole 905. The first one-way valve 906 only allows oil to flow from bottom to top. An oil discharge passage 907 is provided on the side wall at the bottom of the piston chamber 901. The oil discharge passage 907 extends into the connecting cavity 10. A second one-way valve 908 is provided in the oil discharge passage 907. The second one-way valve 908 only allows oil to be discharged into the connecting cavity 10.

[0040] Specifically, when the piston rod 903 moves upward, the piston 902 moves upward as well, creating a negative pressure inside the piston chamber 901. Due to the presence of the second one-way valve 908, the oil will not enter the piston chamber 901 from the connecting chamber 10. The piston chamber 901 draws oil upward from the oil inlet 11 through the oil suction hole 905. When the piston rod 903 drives the piston 902 to move downward, the first one-way valve 906 only allows the oil to flow from bottom to top, so the oil in the piston chamber 901 cannot flow back downward to the oil inlet 11. At this time, the oil enters the connecting chamber 10 through the oil discharge passage 907 and emerges from each oil outlet 13. Therefore, oil can be pumped upward from the bottom of the scroll stationary plate 5 simply by controlling the piston rod 903 to move up and down through the lifting structure 19. The oil is discharged through the oil outlet 13 to lubricate the contact surfaces of the scroll moving plate 4 and the scroll stationary plate 5. Since the oil outlet 13 is evenly distributed at the top of the stationary scroll plate 7, the lubricating oil can evenly reach all contact surfaces of the scroll moving plate 4 and the scroll stationary plate 5, providing sufficient lubrication to the scroll moving plate 4 and the scroll stationary plate 5.

[0041] Reference Figure 6-9 The bottom of the piston chamber 901 is provided with a top spring 904. The lifting structure 19 includes a slide groove 1901 opened on the lower surface of the vortex moving plate 4. The slide groove 1901 is for the piston rod 903 to move. The top wall of the slide groove 1901 is provided with a recessed part 1902 and a protruding part 1903 respectively.

[0042] It is important to note that since the vortex disk 4 moves in an eccentric revolution rather than rotating on its own center, the contact path between the piston rod 903 and the vortex disk 4 is circular, meaning the groove 1901 should be circular and have a certain depth. Therefore, under normal conditions, a portion of the top of the piston rod 903 is always located within the groove 1901. Due to the top spring 904, the piston 902 and piston rod 903 always tend to move upwards. When the recessed portion 1902 reaches above the piston rod 903, the top of the piston rod 903 gradually enters the recessed portion 1902, meaning the piston rod 903 moves upwards. When the protruding portion 1903 reaches above the piston rod 903, the piston rod 903 is squeezed downwards out of the groove 1901, and the piston rod 903 moves downwards. This achieves the lifting and lowering control of the piston rod 903, meaning oil supply is achieved through the rotation of the vortex disk 4, eliminating the need for other electrical or equipment for oil delivery, making it ingenious and convenient.

[0043] Reference Figure 9 The recessed portion 1902 and the raised portion 1903 are arranged opposite to each other, and the front and rear intervals of the recessed portion 1902 and the raised portion 1903 are the same, which makes the oil supply process more stable. Both the recessed portion 1902 and the raised portion 1903 are smoothly connected to the slide groove 1901. When the piston rod 903 slides in the slide groove 1901, it can slide smoothly and without jamming, and will not hinder the normal rotation of the scroll plate 4, thus avoiding a large load on the drive equipment.

[0044] Reference Figure 4 The bottom surface of the vortex stationary disk 5 and the inner bottom surface of the second housing 2 form a high-pressure sealing cavity 20. The exhaust port 12 is connected to the high-pressure sealing cavity 20. The interior of the high-pressure sealing cavity 20 is provided with an oil drain groove 15 and an oil drain hole 16. The oil drain groove 15 and the oil drain hole 16 are used to reintroduce the oil into the outer ring area inside the vortex stationary disk 5.

[0045] The scroll rotating disk 4 and the scroll stationary disk 5 form the refrigerant compression chamber. The lower surface of the scroll stationary disk 5 and the inner side of the second housing 2 form the middle high-pressure sealing chamber 20 and the surrounding low-pressure chamber. The high-pressure sealing chamber 20 and the low-pressure chamber are separated by a sealing ring. The low-pressure chamber is connected to the low-pressure intake pipe 301, and the high-pressure sealing chamber 20 is connected to the high-pressure exhaust pipe 302. The outer ring area of ​​the scroll rotating disk 4 and the scroll stationary disk 5 is the intake area, where the compressor draws in gas from the outside for compression. The inner ring area of ​​the scroll rotating disk 4 and the scroll stationary disk 5 is the compression and exhaust area. Due to the oil pump mechanism 9, lubricating oil continuously seeps out and adheres to the outer ring area of ​​the scroll rotating disk 4. Therefore, more and more lubricating oil adheres to the lower surface of the scroll rotating disk 4 and is scraped off by the top of the scroll stationary disk 5, eventually falling back into the scroll stationary disk 5. Some of the falling lubricating oil will follow the compressed gas from the exhaust port 12 into the high-pressure sealing chamber 20, and then return to the low-pressure area inside the compressor (i.e., the outer ring area of ​​the scroll) through the oil drain groove 15 and oil drain hole 16. The lubricating oil that returns to the inside of the scroll will enter the oil inlet 11, be drawn back into the piston chamber 901, and then emerge again from the oil outlet 13 to lubricate the scroll moving plate 4 and the scroll stationary plate 5. The high-pressure gas is then introduced into the air conditioning system for heat exchange.

[0046] Reference Figure 3 A filter element is installed at the opening of the oil inlet 11. Although the present invention has improved the lubrication of the frictional contact between the scroll moving plate 4 and the scroll stationary plate 5, wear debris will still inevitably be generated during long-term operation. This debris mixes with the lubricating oil and falls into the interior of the scroll stationary plate 5. Installing a filter element at the opening of the oil inlet 11 can filter the incoming lubricating oil, prevent excessive debris from entering the piston chamber 901, and avoid debris from entering the connecting chamber 10 and causing blockage.

[0047] Based on the above scheme, the first shell 1, the second shell 2, the vortex moving disk 4, and the vortex stationary disk 5 in this invention are all made of modified nylon material.

[0048] Specifically, modified nylon refers to nylon materials with added solid lubricants (such as graphite, molybdenum disulfide, polytetrafluoroethylene, etc.), which reduces surface friction, lowers frictional heat, and decreases wear. Since the vibration sources caused by friction are reduced, it also helps improve anti-resonance performance.

[0049] Filling with mineral materials (such as glass fiber, talc, calcium carbonate, clay, etc.) is another common method to improve the abrasion resistance of nylon. The addition of glass fiber is particularly effective in improving the rigidity, strength, abrasion resistance, and thermal stability of nylon. Mineral fillers can also improve the resonant damping characteristics of the material.

[0050] Other ways to modify nylon to improve its wear resistance and resonance performance include, but are not limited to, adding nanomaterials, surface treatment, and using copolymers or elastomers for modification. These are common techniques in the field of chemical materials and will not be elaborated upon in this invention.

[0051] Reference Figure 3 and Figure 8 Both the vortex moving plate 4 and the vortex stationary plate 5 have oil storage tanks 17 and air holes 18 at their bottoms. The oil storage tanks 17 and air holes 18 are connected and are located on the outer ring of the vortex moving plate 4 and the vortex stationary plate 5.

[0052] The oil reservoir 17 stores a small amount of lubricating oil to lubricate the scroll drive plate 4 and the scroll stationary plate 5. When the scroll drive plate 4 operates, it adheres tightly to the inner wall of the scroll stationary plate 5, and its bottom end contacts the oil in the oil reservoir 17, thus utilizing the adsorbed oil for lubrication. The vent 18 increases the intake air saturation, reduces negative pressure during operation, and saves energy. Furthermore, when gas is drawn in, it sprays the lubricating oil from the oil reservoir 17, dispersing the oil and ensuring it is densely distributed inside the compressor, making full contact with the bottom of the scroll drive plate 4 and the scroll stationary plate 5, further improving the lubrication effect. The oil reservoir 17 and vent 18 are located on the outer ring of the scroll drive plate 4 and the scroll stationary plate 5, providing lubrication while preventing gas from escaping through them during compression, thus avoiding affecting the gas compression effect. Because the scroll plate 4 and the stationary scroll plate 5 move in a rubbing motion against each other during compressor operation, previously, refrigerant could only enter through one inlet 14 at the edge when compressing refrigerant. With this improvement, multiple inlets 18 can simultaneously allow refrigerant to enter, resulting in a fuller refrigerant chamber and more refrigerant being discharged into the high-pressure sealed chamber 20 after compression, leading to better and faster cooling. Conversely, when the scroll plate 4 retracts, the additional inlets 18 can also discharge refrigerant from the low-pressure side more quickly, reducing resistance.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modified nylon scroll air conditioner compressor, comprising a first shell (1), a second shell (2) below the first shell (1), a scroll orbiting disk (4), a scroll stationary disk (5), and an air inlet and exhaust seat (3) at the bottom of the second shell (2), the lower surface of the scroll orbiting disk (4) is provided with an orbiting scroll vane (6), the scroll stationary disk (5) is provided with a stationary scroll vane (7) inside, an exhaust port (12) is formed at the center position of the scroll stationary disk (5), and an air inlet port (14) is formed at the edge position of the scroll stationary disk (5), characterized in that, The top end of the static scroll plate (7) is equidistantly provided with a plurality of oil outlet holes (13), and a communication cavity (10) is formed in the static scroll plate (7) and communicates with all the oil outlet holes (13); The inner wall of the scroll static plate (5) is further provided with a boss (8), the bottom of the boss (8) is provided with an oil inlet (11), and a pump oil mechanism (9) is mounted on the boss (8), which pumps oil from the oil inlet (11) and discharges it into the communication cavity (10); The pump oil mechanism (9) comprises a piston rod (903) elastically inserted into the boss (8), and the lower surface of the scroll dynamic plate (4) is provided with a lifting structure (19) matched with the piston rod (903). The bottom of the scroll dynamic plate (4) and the scroll static plate (5) is provided with an oil storage groove (17) and an air hole (18), and the oil storage groove (17) and the air hole (18) are communicated, and the oil storage groove (17) and the air hole (18) are located at the outer circle position of the scroll dynamic plate (4) and the scroll static plate (5).

2. The modified nylon scroll air conditioner compressor of claim 1, wherein, The pump oil mechanism (9) further comprises a piston (902) at the bottom end of the piston rod (903), the inside of the boss (8) is provided with a piston cavity (901) matched with the piston (902), the bottom of the piston cavity (901) is provided with an oil suction hole (905) communicated with the oil inlet (11), the inside of the oil suction hole (905) is provided with a first one-way valve (906), the first one-way valve (906) only allows oil to flow from bottom to top, the sidewall of the bottom of the piston cavity (901) is provided with an oil discharge channel (907) extending into the communication cavity (10), the oil discharge channel (907) is provided with a second one-way valve (908), and the second one-way valve (908) only allows oil to be discharged to the communication cavity (10); The bottom of the piston cavity (901) is provided with a top spring (904), the lifting structure (19) comprises a sliding groove (1901) formed in the lower surface of the scroll dynamic plate (4), the sliding groove (1901) is used for the movement of the piston rod (903), and the top wall of the sliding groove (1901) is respectively provided with a recessed part (1902) and a protruding part (1903). The recessed part (1902) and the protruding part (1903) are oppositely arranged, and the recessed part (1902) and the protruding part (1903) are smoothly connected with the sliding groove (1901).

3. The modified nylon scroll air conditioner compressor of claim 1 wherein, The bottom surface of the scroll static plate (5) and the inner bottom surface of the second shell (2) form a high-pressure sealed cavity (20), the exhaust port (12) is communicated with the high-pressure sealed cavity (20), the inside of the high-pressure sealed cavity (20) is provided with an oil discharge groove (15) and an oil discharge hole (16), and the oil discharge groove (15) and the oil discharge hole (16) are used for guiding oil into the outer circle area inside the scroll static plate (5).

4. The modified nylon scroll air conditioner compressor of claim 2, wherein, A filter core is mounted at the opening of the oil inlet (11).

5. A modified nylon scroll air-conditioner compressor according to any one of claims 1 to 4, characterized in that, The first shell (1), the second shell (2), the scroll dynamic plate (4) and the scroll static plate (5) are all made of modified nylon material.

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