Scroll compressor and air conditioner with same

By providing an anti-overturning oil circuit structure on the annular protrusion of the movable scroll of the scroll compressor, the overturning risk caused by the eccentric movement of the movable scroll and the problems of improper lubricating oil management are solved, and dynamic balance and efficient operation are achieved.

CN120650210APending Publication Date: 2025-09-16ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Patent Information

Application Number
CN202511098827.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

The risk of overturning of the orbiting scroll in a scroll compressor due to eccentric motion and increased power consumption caused by improper lubricating oil management.

Method used

An anti-overturning oil circuit structure is provided on the side wall of the annular protrusion of the movable vortex disk. The lubricating oil is introduced into the anti-overturning oil circuit structure by connecting the oil supply area to form an oil film to balance the asymmetric gas force of the movable vortex disk and optimize the flow direction and use of the lubricating oil.

Benefits of technology

It effectively reduces the risk of the vortex disc overturning, reduces wear and leakage, improves the operating efficiency and reliability of the compressor, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a scroll compressor and an air conditioner with the same, the scroll compressor comprises a dynamic vortex disc, a static vortex disc and an upper support in clearance fit with the dynamic vortex disc, and the dynamic vortex disc comprises a dynamic vortex disc body; the annular protruding part is arranged at the end, relatively close to the static vortex disc, of the dynamic vortex disc body, and an overturn-preventing oil way structure is arranged on the side wall of the annular protruding part; an oil supply area is formed among at least part of the upper bracket, the annular lug boss and the end face, relatively close to the annular lug boss, of the dynamic vortex disc body; at least part of the anti-overturning oil way structure communicates with the oil supply area, so that at least part of lubricating oil is squeezed into the anti-overturning oil way structure under the action of continuous pressure of the lubricating oil in the oil supply area, and the balance state of the dynamic vortex disc is maintained; the problem that in the prior art, an overturning risk is caused by eccentric movement of an orbiting scroll in a scroll compressor is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a scroll compressor and an air conditioner having the same. Background Art

[0002] The performance of the compressor, a key component in air-conditioning systems, directly impacts the efficiency and reliability of the entire system. Scroll compressors, as highly efficient positive displacement compressors, are widely used in air-conditioning and other refrigeration systems due to their high efficiency, low noise, and high reliability. The operating principle of a scroll compressor is based on the orbital and translational motion of the orbiting and stationary scrolls. Specifically, a motor drives the crankshaft to rotate, and the orbiting scroll, driven by the crankshaft, performs a specific orbital and translational motion around the stationary scroll, forming a series of continuously changing crescent-shaped enclosed volumes. Gas is compressed within these enclosed volumes and ultimately discharged through the exhaust port of the stationary scroll, completing the compression process in the cooling or heating cycle.

[0003] To ensure a tight seal between the orbiting and stationary scrolls during gas compression, high-pressure and medium-pressure zones are typically formed on the back of the orbiting scroll within a scroll compressor. A PTFE (polytetrafluoroethylene) seal is used to seal the high-pressure oil sump of the upper bracket, maintaining high pressure around the orbiting scroll bearing housing. The medium-pressure zone is located in the upper bracket cavity outside the PTFE seal. This design utilizes the gas pressure differential to maintain close contact between the orbiting and stationary scrolls, preventing the seal from being compromised due to axial separation.

[0004] However, during the operation of the compressor, the movable scroll rotates along the set eccentric circle trajectory, resulting in uneven pressure distribution in the area where the back of the movable scroll contacts the upper bracket. Specifically, one side of the movable scroll occupies more high-pressure areas, while the other side contacts more medium-pressure areas. This asymmetric pressure distribution will generate a tipping moment, increasing the risk of the movable scroll tipping over, which in turn leads to excessive wear of the movable and static scrolls and leakage problems in the system. In addition, the eccentric movement of the movable scroll bearing seat in the high-pressure chamber will squeeze the surrounding lubricating oil. Due to the extremely small distance between the bearing seat and the wall of the oil pool, the discharge of the lubricating oil is restricted and the pressure increases. This not only increases the stirring power consumption of the lubricating oil, but also affects the efficiency and life of the compressor. Summary of the Invention

[0005] The main purpose of the present invention is to provide a scroll compressor and an air conditioner having the same, so as to solve the problem of overturning risk caused by eccentric motion of the movable scroll in the scroll compressor in the prior art.

[0006] To achieve the above object, according to one aspect of the present invention, a scroll compressor is provided, comprising an orbiting scroll plate, a stationary scroll plate, and an upper bracket with a clearance fit with the orbiting scroll plate, wherein the orbiting scroll plate comprises:

[0007] The body of the moving vortex disc;

[0008] An annular protrusion is provided at one end of the movable vortex body relatively close to the stationary vortex, and an anti-overturning oil passage structure is provided on the side wall of the annular protrusion;

[0009] Among them, an oil supply area is formed between at least part of the upper bracket and the annular protrusion and the end surface of the movable vortex body relatively close to the annular protrusion; at least part of the anti-overturning oil circuit structure is connected to the oil supply area, so that under the continuous pressure of the lubricating oil in the oil supply area, at least part of the lubricating oil is squeezed into the anti-overturning oil circuit structure to maintain the balance state of the movable vortex.

[0010] Furthermore, the anti-overturning oil circuit structure includes a first oil circuit and a second oil circuit that are connected to each other, and the extension directions of the first oil circuit and the second oil circuit form a preset angle, wherein at least a portion of the first oil circuit is connected to the oil supply area.

[0011] Furthermore, the connection between the first oil circuit and the second oil circuit is an arc-shaped transition section or the first oil circuit and the second oil circuit are perpendicular to each other.

[0012] Furthermore, an oil circuit inlet is provided on a side wall of the first oil circuit relatively close to the oil supply area, so that the lubricating oil in the oil supply area enters the anti-overturning oil circuit structure from the oil circuit inlet; wherein, the total length of the first oil circuit is L1, and the distance between the oil circuit inlet and the first oil circuit away from the movable vortex disk body is L2, and the relationship between L1 and L2 satisfies L1:L2=1:3.

[0013] Furthermore, an oil circuit outlet is provided on a side wall of the second oil circuit relatively away from the movable vortex disk body, so that the lubricating oil in the anti-overturning oil circuit structure enters the gap between the movable vortex disk body and the bracket from the oil circuit outlet to form an oil film; wherein, the total length of the second oil circuit is L3, the distance between the oil circuit outlet and the second oil circuit away from the first oil circuit is L4, and the relationship between L3 and L4 satisfies L3:L4=1:4.

[0014] Furthermore, a first closing component is provided at one end of the first oil circuit away from the second oil circuit; and a second closing component is provided at one end of the second oil circuit away from the first oil circuit.

[0015] Furthermore, the first closing component is fixedly connected or detachably connected to the first oil circuit; and / or the second closing component is fixedly connected or detachably connected to the second oil circuit.

[0016] Furthermore, there are multiple anti-overturning oil circuit structures, and the multiple anti-overturning oil circuit structures are arranged at equal intervals around the axis of the annular protrusion.

[0017] Furthermore, the number of the anti-overturning oil circuit structures is 2N, where N is greater than or equal to 4.

[0018] According to another aspect of the present invention, an air conditioner is provided. The air conditioner includes a compressor, which is the scroll compressor mentioned above.

[0019] By applying the technical solution of the present invention, the anti-overturning oil circuit structure provided on the side wall of the annular raised portion on the orbiting vortex body can timely introduce lubricating oil into the oil supply area according to the orbiting motion of the orbiting vortex. During the eccentric orbit of the orbiting vortex, the lubricating oil is squeezed into the anti-overturning oil circuit structure under the action of high pressure, forming a high-pressure oil flow, which is sprayed into the gap between the orbiting vortex and the upper bracket, forming an oil film. This oil film can effectively balance the gas force on the back of the orbiting vortex, reduce the overturning torque caused by the uneven distribution of gas force, maintain the dynamic equilibrium state of the orbiting vortex, and thus ensure the smooth operation and efficiency of the compressor.

[0020] The rational design of the anti-overturning oil circuit structure reduces the additional power consumption caused by excessive compression of lubricating oil by the orbiting scroll bearing seat within the high-pressure chamber. Lubricating oil is effectively introduced into the anti-overturning oil circuit structure at the point where the gap between the eccentric orbiting scroll bearing seat and the wall of the high-pressure oil sump is smallest, promptly releasing pressure within the high-pressure oil sump. This reduces the stirring power consumption caused by improper lubricating oil management, thereby improving the overall energy efficiency of the scroll compressor.

[0021] The anti-overturning oil circuit structure helps form a uniformly distributed oil film between the contact surfaces of the orbiting and stationary scrolls. This oil film not only effectively reduces direct contact between the orbiting and stationary scrolls, thus reducing wear, but also promotes more uniform wear, avoiding the degradation of sealing performance caused by increased localized wear, thereby extending the service life of the scroll compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of the anti-overturning internal oil circuit of an embodiment of the present application is shown;

[0024] Figure 2 A side view of the oil circuit structure in the movable vortex disk according to an embodiment of the present application is shown;

[0025] Figure 3 A schematic diagram of the oil circuit structure in the movable vortex disk of an embodiment of the present application is shown.

[0026] The above drawings include the following reference numerals:

[0027] 1. Orbital vortex disc; 101. Orbital vortex disc body; 102. Annular protrusion; 2. Bracket; 3. Anti-overturning oil circuit structure; 301. First oil circuit; 302. Second oil circuit; 4. Oil supply area; 5. Oil circuit inlet; 6. Oil circuit outlet; 7. First closing component; 8. Second closing component; 9. Upper bracket movable disc support surface. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] As mentioned in the background art, the main purpose of the present invention is to provide a scroll compressor and an air conditioner having the same, so as to solve the problem of overturning risk caused by eccentric motion of the movable scroll in the scroll compressor in the prior art.

[0030] Example 1

[0031] The present application first provides a scroll compressor, such as Figures 1 to 3 As shown, the scroll compressor includes a moving scroll plate 1, a fixed scroll plate, and an upper bracket 2 with a clearance fit with the moving scroll plate 1. The moving scroll plate 1 includes:

[0032] Moving vortex disc body 101;

[0033] The annular protrusion 102 is provided at one end of the orbiting vortex body 101 that is relatively close to the stationary vortex. The sidewall of the annular protrusion 102 is provided with an anti-overturning oil passage structure 3.

[0034] Among them, an oil supply area 4 is formed between at least part of the upper bracket 2 and the annular protrusion 102 and the end surface of the movable scroll body 101 relatively close to the annular protrusion 102; at least part of the anti-overturning oil circuit structure 3 is connected to the oil supply area 4, so that under the continuous pressure of the lubricating oil in the oil supply area 4, at least part of the lubricating oil is squeezed into the anti-overturning oil circuit structure 3 to maintain the balance state of the movable scroll 1.

[0035] During the operation of a traditional scroll compressor, the gas force between the movable scroll disk 1 and the static scroll disk is unevenly distributed, especially under the eccentric movement of the movable scroll disk 1, one side of it will be in the high-pressure area, while the other side will be in the medium-pressure area. This asymmetric pressure distribution will cause the movable scroll disk 1 to generate an overturning moment, increasing the risk of overturning of the movable scroll disk 1, thereby aggravating the wear of the contact surface of the movable and static scroll disks and reducing the sealing of the system.

[0036] In the present application, the anti-overturning oil circuit structure 3 provided on the side wall of the annular raised portion 102 of the orbiting vortex 1 can communicate with the oil supply area 4 formed by the upper bracket 2. The lubricating oil is squeezed into the anti-overturning oil circuit structure 3 by utilizing the continuous high pressure of the lubricating oil in the oil supply area 4. When the orbiting vortex 1 moves, the anti-overturning oil circuit structure 3 can accurately spray the lubricating oil onto the upper bracket 2 according to the change in the eccentric position of the orbiting vortex 1, generating a reverse force, thereby balancing the asymmetric gas force on the back of the orbiting vortex 1, significantly reducing the possibility of the orbiting vortex 1 overturning, reducing excessive wear on the contact surface between the orbiting vortex 1 and the static vortex, and enhancing the sealing performance of the system.

[0037] In the existing design, the eccentric movement of the bearing seat of the movable scroll 1 in the high-pressure oil pool will excessively squeeze the lubricating oil, causing an abnormal increase in the lubricating oil pressure, which not only increases the power consumption of the compressor, but may also affect the circulation efficiency of the lubricating oil.

[0038] Through the design of the anti-overturning oil circuit structure 3 in this application, the high-pressure lubricating oil is directed to a specific area of ​​the orbiting scroll 1 for injection, rather than unnecessarily increasing the pressure within the high-pressure oil pool. This not only reduces the additional power consumption caused by excessive squeezing of the lubricating oil by the bearing seat of the orbiting scroll 1 within the high-pressure oil pool, ensuring the normal flow and circulation of the lubricating oil, but also effectively improves the operating efficiency of the compressor and reduces energy consumption.

[0039] The combination of the anti-overturning oil circuit structure 3 and the annular protrusion 102 of the movable scroll 1, as well as the communication with the oil supply area 4 of the upper bracket 2, provides an additional balancing means for the movable scroll 1, avoids the overturning of the movable scroll 1 due to uneven distribution of gas force, ensures stable engagement between the movable scroll 1 and the static scroll, and improves the operating efficiency and reliability of the compressor.

[0040] Furthermore, the anti-overturning oil circuit structure 3 includes a first oil circuit 301 and a second oil circuit 302 that are connected to each other, and the extension directions of the first oil circuit 301 and the second oil circuit 302 form a preset angle, wherein at least part of the first oil circuit 301 is connected to the oil supply area 4.

[0041] The first oil passage 301 is connected to the oil supply area 4. The high-pressure oil supply area 4 formed by the upper bracket 2 and the movable scroll body 101 can squeeze the lubricating oil into the oil passage at a specific moment when the movable scroll 1 moves eccentrically, thereby providing a balancing force against the asymmetric gas force on the back of the movable scroll 1.

[0042] The extension directions of the first oil circuit 301 and the second oil circuit 302 form a preset angle. This design ensures that the lubricating oil can be accurately guided to the area where pressure balance is required according to the direction and position of the eccentric movement of the movable vortex disk 1, making the balancing effect of the anti-overturning oil circuit structure 3 on the movable vortex disk 1 more dynamic and precise, thereby reducing the risk of overturning of the movable vortex disk 1.

[0043] When the orbiting scroll 1 performs eccentric motion within the high-pressure oil sump, the lubricating oil in the bearing seat area is squeezed, increasing its pressure and causing additional energy consumption due to oil stirring. The interconnected design of the first oil passage 301 and the second oil passage 302 effectively releases the high pressure of this lubricating oil, preventing unnecessary circulation and stirring of the lubricating oil within the high-pressure oil sump, thereby reducing additional energy consumption and improving the energy efficiency of the compressor.

[0044] The effective function of the anti-overturning oil circuit structure 3 can reduce the wear of the contact surface between the movable vortex disk 1 and the stationary vortex disk and system leakage caused by the overturning of the movable vortex disk 1, and improve the sealing between the movable vortex disk 1 and the stationary vortex disk.

[0045] By reducing abnormal wear of the movable scroll disk 1 and reducing system leakage, the technical solution of the present application helps to extend the service life of the scroll compressor and reduce maintenance and replacement costs.

[0046] The anti-overturning oil circuit structure 3 not only solves the overturning problem of the movable scroll 1, but also reduces the complexity of lubricating oil management by optimizing the flow direction and use of lubricating oil, avoids unnecessary pressure loss, and thus improves the overall operating efficiency of the compressor.

[0047] Furthermore, the connection between the first oil passage 301 and the second oil passage 302 is an arc-shaped transition section or the first oil passage 301 and the second oil passage 302 are perpendicular to each other.

[0048] In some embodiments of the present application, the first oil passage 301 is perpendicular to the second oil passage 302 .

[0049] When the first oil path 301 and the second oil path 302 intersect perpendicularly, this design ensures that the lubricating oil can flow quickly and unimpeded into the oil system from the oil supply area 4. The perpendicular intersection design simplifies the flow path of the lubricating oil, reduces flow resistance, and ensures efficient transmission of the lubricating oil.

[0050] Through the connection between first oil passage 301 and oil supply area 4, lubricating oil is introduced into the passage under high pressure. Subsequently, guided by second oil passage 302, the lubricating oil is precisely sprayed onto the upper bracket's movable disc support surface 9 during the eccentric motion of the movable vortex disc 1, generating a counteracting force that balances the tilting moment of the movable vortex disc 1 caused by the uneven distribution of gas forces. The perpendicularly intersecting oil passage design makes this process more direct and effective, improving the reliability and responsiveness of the lubricating oil as a source of balancing force.

[0051] In some embodiments of the present application, the connection between the first oil circuit 301 and the second oil circuit 302 is an arc-shaped transition section;

[0052] The curved transition section optimizes the connection between the first oil passage 301 and the second oil passage 302, reducing turbulence and energy loss during the diversion process. Compared to a right-angle connection, the curved transition section reduces local flow resistance, ensuring smooth flow of the lubricant during directional changes, avoiding pressure fluctuations and turbulence caused by sudden changes, and reducing additional power consumption.

[0053] The design of the arc-shaped transition section also improves the mechanical strength and stability of the anti-overturning oil circuit structure 3, reduces the damage to the anti-overturning oil circuit structure 3 caused by the pressure shock caused by the high-speed flow of lubricating oil, and extends the service life and reliability of the anti-overturning oil circuit structure 3.

[0054] Whether connected by vertical intersection or arc-shaped transition section, the anti-overturning oil circuit structure 3 of the present application can flexibly adjust the injection position and strength of the lubricating oil under various eccentric motion states of the movable vortex disk 1, ensuring that the movable vortex disk 1 always maintains a stable state, reducing the contact wear and leakage risk between the movable vortex disk 1 and the static vortex disk.

[0055] Furthermore, an oil circuit inlet 5 is provided on one side wall of the first oil circuit 301 relatively close to the oil supply area 4, so that the lubricating oil in the oil supply area 4 enters the anti-overturning oil circuit structure 3 from the oil circuit inlet 5; wherein, the total length of the first oil circuit 301 is L1, and the distance between the oil circuit inlet 5 and the first oil circuit 301 away from the movable vortex disc body 101 is L2, and the relationship between L1 and L2 satisfies L1:L2=1:3.

[0056] According to the operating principle of the orbiting scroll 1, when the orbiting scroll 1 approaches the oil supply area 4 during eccentric motion, the reaction force of the lubricating oil is needed to balance the gas force behind the orbiting scroll 1. The layout of the oil inlet 5 ensures that the lubricating oil in the oil supply area 4 can flow into the anti-overturning oil circuit structure 3 in a timely manner.

[0057] The relationship between L1 and L2 is L1:L2=1:3. This design ensures that the lubricating oil can be effectively introduced and, when the eccentric direction of the movable vortex disk 1 changes, the amount of lubricating oil entering the oil circuit is adjusted in time to match the asymmetric force of the movable vortex disk 1, thereby achieving stable control of the state of the movable vortex disk 1.

[0058] By setting the ratio L1:L2 = 1:3, the length of the first oil passage 301 is shortened, reducing the lubricating oil flow path length and the resulting frictional resistance. This makes the flow of lubricating oil from the oil passage inlet 5 to the specific injection point of the orbiting scroll 1 more efficient, reduces unnecessary power consumption during the flow of lubricating oil, and thus improves the overall energy efficiency of the scroll compressor.

[0059] This design can also ensure that the pressure loss of the lubricating oil is minimized. Even under high-speed and high-pressure conditions, the lubricating oil can quickly reach the required position at a lower energy cost, adjust the axial and radial forces of the movable vortex disc 1, and prevent the movable vortex disc 1 from overturning.

[0060] When the orbiting scroll 1 is in eccentric motion, one side is in a high-pressure region, while the other side is in a medium-pressure region. This asymmetric pressure distribution can easily cause the orbiting scroll 1 to tilt or overturn. By providing an oil passage inlet 5 on the sidewall where the first oil passage 301 meets the oil supply region 4, lubricating oil from the high-pressure region can be introduced into the anti-overturning oil passage structure 3, generating a counteracting force at the location where the orbiting scroll 1 requires additional support and balance, effectively counteracting the orbiting scroll 1's tendency to overturn.

[0061] Furthermore, an oil circuit outlet 6 is provided on a side wall of the second oil circuit 302 which is relatively away from the movable vortex disk body 101, so that the lubricating oil in the anti-overturning oil circuit structure 3 enters the gap between the movable vortex disk body 101 and the upper bracket 3 through the oil circuit outlet 6 to form an oil film; wherein, the total length of the second oil circuit 302 is L3, and the distance between the oil circuit outlet 6 and the second oil circuit 302 away from the first oil circuit 301 is L4, and the relationship between L3 and L4 satisfies L3:L4=1:4.

[0062] In some embodiments of the present application, the oil outlet 6 is a circular hole, the eccentricity of the movable vortex disk 1 is e, the radius of the oil outlet 6 is set to r, the distance between the central axis of the oil outlet 6 and the central axis of the movable vortex disk 1 is set to R0, the inner diameter of the upper bracket movable disk support surface 9 is R1, and the outer diameter is R2, then R0 and r should simultaneously satisfy r≦1 / 2(R2-R1-e) and R0≦1 / 2(R2+R1+e).

[0063] When lubricating oil enters the gap between the movable vortex disc body 101 and the upper bracket 2 through the oil outlet 6, an oil film of appropriate thickness is formed. The thickness of the oil film is determined by the relationship between R0 (the distance between the central axis of the oil outlet 6 and the central axis of the movable vortex disc 1), r (the radius of the oil outlet 6), e (the eccentricity of the movable vortex disc 1), R1 (the inner diameter of the upper bracket movable disc support surface 9), and R2 (the outer diameter of the upper bracket movable disc support surface 9). R0 and r must simultaneously satisfy the conditions of r ≤ 1 / 2 (R2-R1-e) and R0 ≤ 1 / 2 (R2+R1+e). This design ensures that the oil film can provide sufficient balancing force to counteract the asymmetric gas force on the back of the movable vortex disc 1 and prevent the movable vortex disc 1 from overturning, while not being too thick, resulting in unnecessary power consumption increases.

[0064] The rational design of oil outlet 6, combined with the proportional relationship between L3 and L4, effectively avoids the extra power consumption caused by unnecessary squeezing of lubricating oil within the high-pressure chamber. By timely draining the lubricating oil and forming a precise oil film, the overturning moment of the orbiting scroll 1 is balanced and abnormal increases in lubricating oil pressure within the high-pressure chamber are avoided, thus reducing unnecessary stirring power consumption and saving energy.

[0065] The oil film formed at the oil outlet 6 not only balances the force on the movable vortex disc 1, but also strengthens the sealing between the movable vortex disc 1 and the upper bracket 2, reduces the direct contact between the movable vortex disc 1 and the static vortex disc, and reduces the risk of wear and leakage.

[0066] By precisely controlling the size and position of the oil outlet 6, it is ensured that at any time, at the minimum gap between the bearing seat in the eccentric direction of the orbiting scroll 1 and the wall of the high-pressure oil pool, the lubricating oil can form an appropriate oil film, thereby avoiding excessive wear of the orbiting scroll 1 and the static scroll, and extending the service life of the scroll compressor.

[0067] Furthermore, a first closing component 7 is provided at one end of the first oil passage 301 away from the second oil passage 302 ; and a second closing component 8 is provided at one end of the second oil passage 302 away from the first oil passage 301 .

[0068] In some embodiments of the present application, the first closing component 7 and the second closing component 8 may be sealing pins, or sealing covers and other components.

[0069] The provision of the first sealing member 7 and the second sealing member 8 (e.g., a sealing pin or a sealing cap) ensures the sealing of the anti-overturning oil circuit structure 3, preventing unexpected leakage of lubricating oil. This sealing mechanism effectively prevents lubricating oil waste, maintains the cleanliness and stability of the oil circuit interior, and thus improves the overall reliability of the oil circuit system, especially when the oil circuit is not connected to the oil supply area 4 or when lubricating oil is not required to be released through the oil circuit outlet 6.

[0070] During the different stages of the eccentric motion of the orbiting scroll 1, lubricating oil is released only through a specific oil outlet 6, entering the gap between the orbiting scroll body 101 and the upper bracket 2 to form an oil film. The presence of the first and second sealing members 7, 8 ensures that the lubricating oil can only flow through a predetermined path, preventing the disordered escape of lubricating oil when no balancing force is required, which could affect the dynamic balancing function of the orbiting scroll 1.

[0071] When the movable vortex plate 1 moves to a specific position, the oil outlet 6 of the second oil circuit 302 is just covered by the upper bracket movable plate support surface 9. At this time, the lubricating oil is allowed to be released from the oil outlet 6 to form an oil film to provide the necessary balancing force.

[0072] The design of the first and second sealing components 7 and 8 not only enhances the sealing and functionality of the anti-overturning oil circuit structure 3, but also reduces the maintenance frequency and costs caused by oil leakage. Precise control of the lubricating oil reduces contamination and wear within the system, helping to extend the service life of the scroll compressor.

[0073] Furthermore, the first closing component 7 is fixedly connected or detachably connected to the first oil circuit 301 ; and / or the second closing component 8 is fixedly connected or detachably connected to the second oil circuit 302 .

[0074] In some embodiments of the present application, the first sealing component 7 and the first oil passage 301 are fixedly connected, such as by welding;

[0075] In some embodiments of the present application, the first closing component 7 and the first oil passage 301 are detachably connected, such as by snapping.

[0076] Achieving a fixed connection between the first closing component 7 and the first oil circuit 301 by welding or other means can provide higher structural rigidity, reduce the risk of oil circuit loosening or leakage due to long-term operation, and enhance the stability and reliability of the entire oil circuit system.

[0077] The welding connection ensures the sealing of the connection parts, effectively preventing lubricant leakage even under extreme operating conditions, and ensuring the long-term stable operation of the oil system.

[0078] Detachable connection methods such as snap-on connections facilitate disassembly and assembly, and are conducive to inspecting, cleaning or replacing closed components during operation without disassembling the entire oil system, reducing maintenance time and costs.

[0079] The detachable connection design allows the enclosed components to be easily adjusted or replaced according to specific needs, such as changing the material, shape or specifications of the enclosed components to adapt to different operating conditions or optimize performance, thereby enhancing the flexibility and applicability of the design.

[0080] Furthermore, there are multiple anti-overturning oil passage structures 3 , and the multiple anti-overturning oil passage structures 3 are arranged at equal intervals around the axis of the annular protrusion 102 .

[0081] The provision of multiple anti-overturning oil passage structures 3 enables the oil passage outlet 6 to form multiple evenly distributed pressure release points around the annular protrusion 102 of the orbiting scroll 1. When lubricating oil is sprayed from these oil passage outlets 6 into the gap between the orbiting scroll 1 and the upper bracket 2, forming an oil film, it can evenly distribute the force along the entire circumference of the orbiting scroll 1, more effectively balancing the overturning moment of the orbiting scroll 1 caused by the uneven distribution of gas force.

[0082] The equally spaced anti-overturning oil circuit structure 3 can ensure that during the orbital motion of the movable vortex disk 1, as the eccentric direction of the movable vortex disk 1 changes, different oil circuit outlets 6 enter and exit the coverage range of the upper bracket movable disk support surface 9 in a timely manner, thereby realizing dynamic balance control and improving the accuracy and timeliness of the response to the overturning torque of the movable vortex disk 1.

[0083] The provision of multiple anti-overturning oil circuit structures 3 increases system redundancy. Even if the performance of individual oil circuit structures degrades due to wear, blockage, or damage, the remaining oil circuit structures can continue to operate, providing the necessary balancing force to ensure the normal operation of the scroll compressor, reducing the risk of system failure due to a single oil circuit failure.

[0084] The equally spaced distribution of the anti-overturning oil path structures 3 promotes more uniform wear on the contact surfaces between the orbiting scroll 1 and the stationary scroll, thereby avoiding excessive wear caused by uneven local oil film thickness or pressure, extending the service life of the scroll compressor and reducing maintenance costs.

[0085] The design of multiple oil outlets 6 helps to evenly distribute the fluid, reduces the turbulence and resistance of the fluid inside the oil circuit, makes the transmission of lubricating oil smoother, and reduces the additional power consumption caused by fluid dynamics effects.

[0086] Furthermore, the number of the anti-overturning oil circuit structures 3 is 2N, where N is greater than or equal to 4.

[0087] The design of 2N anti-overturning oil circuit structures 3 ensures that during the orbiting and translational motion of the orbiting vortex disk 1, regardless of any changes in the eccentric direction, at least one anti-overturning oil circuit structure 3 will promptly respond, introducing high-pressure lubricating oil to the upper bracket's orbiting disk support surface 9, forming an effective oil film. As the orbiting vortex disk 1 moves, these anti-overturning oil circuit structures 3 take turns to function, ensuring that the orbiting vortex disk 1 always obtains the required balancing force, greatly reducing the risk of the orbiting vortex disk 1 overturning.

[0088] The number setting of N≥4 means that there are at least 8 anti-overturning oil circuit structures 3 distributed around the annular protrusion 102 of the movable vortex disk 1. This high-density oil circuit distribution can more evenly disperse and balance the gas force on the back of the movable vortex disk 1, thereby improving the stability and reliability of the dynamic balancing effect.

[0089] Increasing the number of anti-overturning oil circuit structures 3 substantially increases the operational redundancy of the oil circuit system. Even if a few oil circuit structures decline in performance due to wear, blockage, or other reasons, the remaining oil circuit structures can still provide sufficient balancing force to maintain normal operation of the compressor, reducing the system failure rate and improving overall stability.

[0090] Example 2

[0091] The present application also provides an air conditioner, comprising a compressor, wherein the compressor is the scroll compressor mentioned above.

[0092] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0093] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0094] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0095] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0096] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0097] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0098] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A scroll compressor comprising a moving scroll (1), a stationary scroll, and an upper bracket (2) having a clearance fit with the moving scroll (1), characterized in that: The movable vortex disk (1) comprises: Moving vortex disc body (101); An annular protrusion (102) is provided at one end of the movable vortex disc body (101) relatively close to the stationary vortex disc, and an anti-overturning oil path structure (3) is provided on a side wall of the annular protrusion (102); An oil supply area (4) is formed between at least a portion of the upper bracket (2), the annular protrusion (102), and an end surface of the movable vortex disc body (101) relatively close to the annular protrusion (102); and at least a portion of the anti-overturning oil path structure (3) is connected to the oil supply area (4), so that under the continuous pressure of the lubricating oil in the oil supply area (4), at least a portion of the lubricating oil is squeezed into the anti-overturning oil path structure (3) to maintain the equilibrium state of the movable vortex disc (1).

2. The scroll compressor according to claim 1, wherein The anti-overturning oil circuit structure (3) comprises a first oil circuit (301) and a second oil circuit (302) that are interconnected, wherein the extension directions of the first oil circuit (301) and the second oil circuit (302) form a preset angle, wherein at least a portion of the first oil circuit (301) is connected to the oil supply area (4).

3. The scroll compressor according to claim 2, wherein: The connection between the first oil circuit (301) and the second oil circuit (302) is an arc-shaped transition section, or the first oil circuit (301) and the second oil circuit (302) are perpendicular to each other.

4. The scroll compressor according to claim 2, wherein: An oil circuit inlet (5) is provided on a side wall of the first oil circuit (301) that is relatively close to the oil supply area (4), so that the lubricating oil in the oil supply area (4) enters the anti-overturning oil circuit structure (3) from the oil circuit inlet (5); wherein the total length of the first oil circuit (301) is L1, and the distance between the oil circuit inlet (5) and the first oil circuit (301) away from the movable vortex disc body (101) is L2, and the relationship between L1 and L2 satisfies L1:L2=1:

3.

5. The scroll compressor according to claim 2, wherein: An oil circuit outlet (6) is provided on a side wall of the second oil circuit (302) relatively away from the movable vortex disc body (101), so that the lubricating oil in the anti-overturning oil circuit structure (3) enters the gap between the movable vortex disc body (101) and the upper bracket (2) through the oil circuit outlet (6) to form an oil film; wherein the total length of the second oil circuit (302) is L3, and the distance between the oil circuit outlet (6) and the second oil circuit (302) away from the first oil circuit (301) is L4. The relationship between L3 and L4 satisfies L3:L4=1:

4.

6. The scroll compressor according to claim 2, wherein: A first closing component (7) is provided at one end of the first oil circuit (301) away from the second oil circuit (302); and a second closing component (8) is provided at one end of the second oil circuit (302) away from the first oil circuit (301).

7. The scroll compressor according to claim 6, characterized in that The first closing component (7) is fixedly connected or detachably connected to the first oil circuit (301); and / or the second closing component (8) is fixedly connected or detachably connected to the second oil circuit (302).

8. The scroll compressor according to claim 1, wherein: There are multiple anti-overturning oil circuit structures (3), and the multiple anti-overturning oil circuit structures (3) are arranged at equal intervals around the axis of the annular raised portion (102).

9. The scroll compressor according to claim 1, wherein: The number of the anti-overturning oil circuit structures (3) is 2N, wherein N is greater than or equal to 4.

10. An air conditioner comprising a compressor, characterized in that: The compressor is the scroll compressor according to any one of claims 1 to 9.

Citation Information

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