Compressor thrust structure, compressor and air conditioner

Abstract

The utility model provides a kind of compressor thrust structure, compressor and air conditioner, compressor thrust structure includes crankshaft assembly and thrust bearing, crankshaft assembly has crankshaft driving part and the oil reservoir around the setting of crankshaft driving part;Thrust bearing includes bearing main body, its one end towards crankshaft assembly is provided with oil storage groove and oil guide, oil guide is set in oil storage groove and is lower than the opening setting, at least part of crankshaft driving part is located in oil storage groove and is contacted with oil guide, to support crankshaft assembly;Wherein, oil reservoir is communicated with oil storage groove, oil guide includes first oil guide groove, two ends of first oil guide groove are respectively communicated with oil storage groove and the center hole of thrust bearing, to make by the lubricating oil that flows into oil storage groove from oil reservoir after lubricating between thrust bearing and crankshaft driving part lubricating oil pool of compressor into by first oil guide groove.The utility model solves the technical problem that related art lubricating oil is poor in the lubricating effect at thrust bearing, leading to thrust surface wear.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a compressor thrust structure, a compressor, and an air conditioner. Background Technology

[0002] Currently, scroll compressors are commonly used key components in refrigeration and air conditioning systems, and their internal lubrication system is crucial to their performance and lifespan. In existing technology, the crankshaft drive unit of a scroll compressor is interference-fitted with the crankshaft, achieving an integrated design. This design allows the crankshaft drive unit to effectively drive the oil pump when the crankshaft rotates, delivering lubricating oil to the compressor cavity. Subsequently, the lubricating oil flows upward along the inner bore of the crankshaft, providing necessary lubrication to the upper structure of the compressor.

[0003] However, excessive clearance between the crankshaft drive unit and the oil pump directly affects the efficiency of lubricating oil delivery along the crankshaft's internal channels, thus reducing the reliability of the entire lubrication system. To improve the lubrication of the thrust bearing, existing technology proposes replacing the oil pump with an oil guide plate. In this scheme, lubricating oil provides initial lubrication to the support bearing through radial oil holes and tangential oil grooves at the lower crankshaft support, then flows into the upper oil reservoir for secondary lubrication of the thrust bearing. However, this design has limitations. Because the thrust bearing lacks direct forced oil supply, most of the lubricating oil is discharged outwards after entering the thrust oil grooves, resulting in insufficient lubrication of the contact surface between the crankshaft and the thrust bearing. This is particularly problematic under complex compressor operating conditions and a wide speed range, where wear on the thrust surface becomes more pronounced, affecting the long-term stable operation and reliability of the compressor. Utility Model Content

[0004] The main purpose of this utility model is to provide a compressor thrust structure, a compressor, and an air conditioner to solve the technical problem in the related art where the lubricating oil has a poor lubrication effect at the thrust bearing, leading to wear of the thrust surface.

[0005] To achieve the above objectives, according to one aspect of the present invention, a compressor thrust structure is provided, comprising: a crankshaft assembly having a crankshaft drive portion and an oil reservoir, the oil reservoir surrounding the crankshaft drive portion; a thrust bearing including a bearing body, an oil reservoir and an oil guide being provided at one end of the bearing body facing the crankshaft assembly, the oil guide being disposed within the oil reservoir and positioned below the opening of the oil reservoir, at least a portion of the crankshaft drive portion being located within the oil reservoir and in contact with the oil guide, so that the oil guide supports the crankshaft assembly; wherein, the oil reservoir is connected to the oil reservoir, the oil guide including a first oil guide groove, the two ends of the first oil guide groove being connected to the oil reservoir and the center hole of the thrust bearing respectively, so that lubricating oil flowing from the oil reservoir into the oil reservoir lubricates the thrust bearing and the crankshaft drive portion, and then flows into the compressor's lubricating oil sump via the first oil guide groove.

[0006] Furthermore, there are multiple first oil guide grooves, each of which extends along an arc direction, and the multiple first oil guide grooves are spaced apart along the circumferential direction of the oil guide to form a spiral structure.

[0007] Furthermore, the first oil guide groove is provided in an arc-shaped direction and has an oil inlet communicating with the oil storage groove and an oil outlet communicating with the center hole of the thrust bearing. The tangent of the oil inlet direction of the first oil guide groove and the tangent of the oil guide component along its circumferential direction have a first preset angle A, and the tangent of the oil outlet direction of the first oil guide groove and the tangent of the oil guide component along its circumferential direction have a second preset angle B. The first preset angle A and the second preset angle B satisfy: 10°≤A≤45°, 45°≤B≤80°.

[0008] Furthermore, the opening width of the first oil guide groove in the circumferential direction of the oil guide gradually decreases along the flow direction of the lubricating oil in the first oil guide groove, the oil inlet has a first opening width L1, and the oil outlet has a second opening width L2; wherein, the first opening width L1 and the second opening width L2 satisfy: 3mm≤L1≤5mm, 1mm≤L2≤3mm.

[0009] Furthermore, the highest height of the oil guide protruding from the bottom wall of the oil storage tank is the first preset height H1, which satisfies: 0 < H1 ≤ 2 mm; and / or, the height of the first oil guide groove is consistent with the height of the oil guide.

[0010] Furthermore, the depth of the oil storage tank is a second preset height H2, which satisfies the following condition: 3mm≤H2≤4mm.

[0011] Furthermore, there is a preset distance K between the inner wall of the oil storage tank and the outer peripheral wall of the oil guide, and the preset distance K satisfies: 1mm≤K≤3mm.

[0012] Furthermore, the compressor thrust structure also includes: multiple second oil guide grooves, which are spaced apart along the circumferential direction of the bearing body on one end surface of the bearing body facing the crankshaft assembly, and the two ends of each second oil guide groove are respectively connected to the oil reservoir and the compressor's lubricating oil pool.

[0013] Furthermore, each of the second oil guide grooves is a straight groove and the groove wall of the second oil guide groove is an arc-shaped structure. The groove wall of the second oil guide groove has a preset radius r, which satisfies: 0 < r ≤ 2 mm.

[0014] According to another aspect of the present invention, a compressor is provided, including the compressor thrust structure mentioned above.

[0015] According to another aspect of the present invention, an air conditioner is provided, including the compressor mentioned above.

[0016] One aspect of the technical solution of this utility model provides a compressor thrust structure, comprising: a crankshaft assembly having a crankshaft drive portion and an oil reservoir, the oil reservoir surrounding the crankshaft drive portion; a thrust bearing including a bearing body, an oil reservoir and an oil guide being provided at one end of the bearing body facing the crankshaft assembly, the oil guide being disposed within the oil reservoir and positioned below the opening of the oil reservoir, at least a portion of the crankshaft drive portion being located within the oil reservoir and in contact with the oil guide, so that the oil guide supports the crankshaft assembly; wherein, the oil reservoir is connected to the oil reservoir, the oil guide including a first oil guide groove, the two ends of the first oil guide groove being connected to the oil reservoir and the center hole of the thrust bearing respectively, so that the lubricating oil flowing from the oil reservoir into the oil reservoir lubricates the thrust bearing and the crankshaft drive portion and then flows into the compressor's lubricating oil sump through the first oil guide groove.

[0017] By incorporating an oil reservoir and oil guide at the end of the thrust bearing body facing the crankshaft assembly, lubricating oil in the reservoir cavity can flow directly into the reservoir, improving the efficiency and utilization of lubricating oil. This design ensures a continuous supply of lubricating oil in the contact area between the thrust bearing and the crankshaft drive unit, avoiding waste and ineffective flow. Furthermore, the oil guide, positioned within the reservoir and below its opening, allows the thrust bearing to effectively support the crankshaft assembly while the lubricating oil flows more stably and evenly under its guidance. This effectively enhances the lubrication between the thrust bearing and the crankshaft drive unit, reducing wear and friction caused by insufficient lubrication and improving the compressor's operational stability and reliability. This design also solves the technical problem of poor lubrication at the thrust bearing, leading to wear on the thrust surface, in related technologies.

[0018] Furthermore, the design of the first oil guide groove allows the lubricating oil, after completing the lubrication between the thrust bearing and the crankshaft drive unit, to smoothly flow into the compressor's lubricating oil sump, forming a closed lubricating oil circulation system. This circulation not only ensures the continuous and effective operation of the lubrication system but also promotes the control of lubricating oil temperature, preventing the deterioration of lubricating oil performance caused by high temperatures.

[0019] As can be seen, this application significantly improves the lubrication effect between the thrust bearing and the crankshaft drive unit by optimizing the guidance and recycling of lubricating oil. This not only enhances the compressor's wear resistance and operational stability but also reduces noise and vibration, thus broadening its application range. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A partial cross-sectional view is shown, provided according to an embodiment of the compressor of the present invention; Figure 2 A cross-sectional view is shown provided for an embodiment of the compressor thrust structure according to the present invention; Figure 3 A structural diagram of a thrust bearing provided according to an embodiment of the compressor thrust structure of this utility model is shown; Figure 4 A top view of a thrust bearing provided according to an embodiment of the compressor thrust structure of the present invention is shown; Figure 5 A cross-sectional view of a thrust bearing provided according to an embodiment of the compressor thrust structure of the present invention is shown.

[0021] The above figures include the following reference numerals: 1. Crankshaft assembly; 10. Crankshaft drive unit; 11. Oil reservoir; 2. Thrust bearing; 20. Bearing body; 21. Oil reservoir; 22. Oil guide; 220. First oil guide groove; 221. Oil inlet; 222. Oil outlet; 23. Center hole; 24. Second oil guide groove. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] In order to solve the technical problem that the lubricating oil has a poor lubrication effect at the thrust bearing, resulting in wear of the thrust surface, this utility model provides a compressor thrust structure, a compressor, and an air conditioner.

[0024] Please refer to Figures 1 to 5 As shown, one aspect of the technical solution of this utility model provides a compressor thrust structure, including: a crankshaft assembly 1 having a crankshaft drive part 10 and an oil reservoir 11, the oil reservoir 11 being disposed around the crankshaft drive part 10; a thrust bearing 2 including a bearing body 20, the bearing body 20 having an oil reservoir 21 and an oil guide 22 disposed at one end facing the crankshaft assembly 1, the oil guide 22 being disposed within the oil reservoir 21 and the oil guide 22 being disposed below the opening of the oil reservoir 21; at least part of the crankshaft drive part 10... The oil is located in the oil reservoir 21 and in contact with the oil guide 22 so that the oil guide 22 supports the crankshaft assembly 1. The oil reservoir 11 is connected to the oil reservoir 21, and the oil guide 22 includes a first oil guide groove 220. The two ends of the first oil guide groove 220 are connected to the oil reservoir 21 and the center hole 23 of the thrust bearing 2, respectively, so that the lubricating oil flowing from the oil reservoir 11 into the oil reservoir 21 lubricates the thrust bearing 2 and the crankshaft drive part 10, and then flows into the compressor's lubricating oil pool through the first oil guide groove 220.

[0025] By providing an oil reservoir 21 and an oil guide 22 at the end of the bearing body 20 of the thrust bearing 2 facing the crankshaft assembly 1, the lubricating oil in the oil reservoir 11 can flow directly into the oil reservoir 21, improving the efficiency and utilization of the lubricating oil. This design ensures a continuous supply of lubricating oil in the contact area between the thrust bearing 2 and the crankshaft drive unit 10, avoiding waste and ineffective flow of lubricating oil. Furthermore, by positioning the oil guide 22 within the oil reservoir 21 and below its opening, this design allows the thrust bearing 2 to effectively support the crankshaft assembly 1, while the lubricating oil flows more stably and evenly under the guidance of the oil guide 22. This effectively improves the lubrication effect between the thrust bearing 2 and the crankshaft drive unit 10, reducing wear and friction caused by insufficient lubrication, and enhancing the operational stability and reliability of the compressor. This solves the technical problem in related technologies where poor lubrication at the thrust bearing 2 leads to wear on the thrust surface.

[0026] Furthermore, the first oil guide groove 220 allows the lubricating oil to flow smoothly into the compressor's lubricating oil sump after lubrication between the thrust bearing 2 and the crankshaft drive unit 10, forming a closed lubricating oil circulation system. This circulation not only ensures the continuous and effective operation of the lubrication system but also promotes the control of lubricating oil temperature, preventing the lubricating oil performance from deteriorating due to high temperatures.

[0027] It is evident that this application significantly improves the lubrication effect between the thrust bearing 2 and the crankshaft drive unit 10 by optimizing the guidance and recycling of lubricating oil. This not only enhances the compressor's wear resistance and operational stability but also reduces noise and vibration, thus broadening its application range.

[0028] In this embodiment, there are multiple first oil guide grooves 220, and each first oil guide groove 220 is arranged to extend along an arc direction. The multiple first oil guide grooves 220 are spaced apart along the circumferential direction of the oil guide member 22 to form a spiral structure.

[0029] By arranging multiple first oil guide grooves 220 at circumferential intervals along the oil guide member 22, it is ensured that the lubricating oil can be evenly distributed to all parts of the contact surface between the thrust bearing 2 and the crankshaft drive unit 10, reducing the possibility of insufficient local lubrication, thereby improving the overall lubrication effect and the working stability of the bearing. The spiral structure of the first oil guide grooves 220 utilizes the flow inertia of the lubricating oil. As the crankshaft rotates, the lubricating oil forms a continuous flow path within the spiral groove, which not only promotes the effective utilization of the lubricating oil, but also increases the thickness and strength of the oil film, further enhancing the wear resistance of the thrust bearing 2.

[0030] In this embodiment, the first oil guide groove 220 is provided in an arc-shaped direction and has an oil inlet 221 communicating with the oil storage groove 21 and an oil outlet 222 communicating with the center hole 23 of the thrust bearing 2. The first preset angle A is between the tangent of the oil inlet direction of the first oil guide groove 220 and the tangent of the oil guide member 22 in its circumferential direction, and the second preset angle B is between the tangent of the oil outlet direction of the first oil guide groove 220 and the tangent of the oil guide member 22 in its circumferential direction. The first preset angle A and the second preset angle B satisfy: 10°≤A≤45°, 45°≤B≤80°.

[0031] Because a first preset angle A is formed between the tangent of the oil inlet direction of the first oil guide groove 220 and the tangent of the oil guide 22 along its circumferential direction, and a second preset angle B is formed between the tangent of the oil outlet direction and the tangent of the oil guide 22 along its circumferential direction, where angle A is set between 10° and 45° and angle B is between 45° and 80°, this angle design helps the lubricating oil smoothly enter the first oil guide groove 220 from the oil reservoir 21 and flow efficiently to the center hole 23 of the thrust bearing 2 through the oil outlet 222, reducing flow resistance, optimizing the oil circuit layout, and improving the circulation efficiency of the lubricating oil. Furthermore, when the lubricating oil passes through the first oil guide groove 220, its flow path is longer and the contact area is increased, which helps to better absorb and remove the heat generated by the thrust bearing 2 during operation, improving the cooling effect and extending the service life of the bearing and crankshaft.

[0032] In this embodiment, when the thrust bearing 2 rotates clockwise or counterclockwise, the first oil guide groove 220 extends in the same direction as the rotation of the thrust bearing 2 and is set inward.

[0033] In this embodiment, the opening width of each first oil guide groove 220 in the circumferential direction of the oil guide member 22 gradually decreases along the flow direction of the lubricating oil in the first oil guide groove 220. The oil inlet 221 has a first opening width L1, and the oil outlet 222 has a second opening width L2. The first opening width L1 and the second opening width L2 satisfy: 3mm≤L1≤5mm, 1mm≤L2≤3mm.

[0034] The opening width of each first oil guide groove 220 in the circumferential direction of the oil guide 22 gradually decreases along the flow direction of the lubricating oil. This tapered oil guide groove design can effectively control the flow rate and distribution of the lubricating oil. The larger first opening width L1 helps the lubricating oil form a wider flow interface when entering the oil guide groove, thereby improving the entry efficiency and distribution uniformity of the lubricating oil. As the lubricating oil flows towards the oil outlet 222, its flow interface gradually decreases to the second opening width L2. This tapered design helps to form a higher flow velocity and pressure at the oil outlet 222, ensuring that the lubricating oil can smoothly enter the center hole 23 of the thrust bearing 2 and achieve precise lubrication.

[0035] In this embodiment, the height of the first oil guide groove 220 is the same as the height of the oil guide member 22. By ensuring that the heights of the first oil guide groove 220 and the oil guide member 22 are the same, the flow path of the lubricating oil within the oil guide groove is not obstructed by the height difference, thereby reducing the flow resistance of the lubricating oil and improving the circulation efficiency of the lubricating oil. This design ensures that a stable and continuous oil film is formed between the contact surface of the oil guide member 22 and the crankshaft drive unit 10, reducing dry friction and improving the lubrication effect. It is evident that the tapered oil guide groove design allows the lubricating oil to more effectively carry away the heat from the contact surface between the thrust bearing 2 and the crankshaft drive unit 10 during flow. Because the lubricating oil flow velocity is higher at the oil outlet 222, it facilitates rapid heat conduction and dissipation, thereby improving cooling efficiency, reducing operating temperature, and enhancing the reliability of compressor operation.

[0036] In this embodiment, the highest height of the oil guide 22 protruding from the bottom wall of the oil storage tank 21 is the first preset height H1, which satisfies: 0 < H1 ≤ 2 mm.

[0037] Because the oil guide 22 protrudes from the bottom wall of the oil reservoir 21, when lubricating oil enters the oil reservoir 21, the tiny gap between the oil guide 22 and the bottom wall of the reservoir can form an oil film. This oil film forms an effective lubrication layer between the thrust bearing 2 and the crankshaft drive unit 10 during compressor operation, reducing direct contact between mechanical parts and thus reducing wear and friction.

[0038] By limiting the first preset height H1 to within 2mm, it is ensured that the oil guide 22 does not excessively obstruct the flow of lubricating oil, while simultaneously guiding the lubricating oil along a predetermined path. This design helps to form a stable lubricating oil flow, avoiding the impact on lubrication performance caused by excessive height leading to increased flow resistance or insufficient oil film thickness due to insufficient height. Furthermore, the protrusion height H1 of the oil guide 22 can control the amount of lubricating oil entering the first oil guide groove 220. During compressor operation, controlling the amount of lubricating oil is crucial for maintaining appropriate oil film thickness and pressure. The design of the first preset height H1 ensures an adequate supply of lubricating oil, avoiding overflow and waste due to excessive lubricating oil, while also preventing poor lubrication caused by insufficient lubricating oil.

[0039] In this embodiment, the depth of the oil storage tank 21 is a second preset height H2, which satisfies the following condition: 3mm≤H2≤4mm.

[0040] The design of the second preset height H2 determines the amount of lubricating oil that the oil reservoir 21 can hold. A higher oil reservoir 21 means a larger oil storage capacity, ensuring sufficient lubricating oil supply between the thrust bearing 2 and the crankshaft drive unit 10 during long-term compressor operation or under extreme conditions, and avoiding wear and performance degradation caused by insufficient lubricating oil supply.

[0041] The second preset height H2 of the oil reservoir 21 directly affects the formation and stability of the oil film. Within a height range of 3mm to 4mm, the lubricating oil can form a stable and thick oil film between the oil reservoir 21 and the oil guide 22. This is crucial for reducing the coefficient of friction and minimizing mechanical wear, especially for components like the thrust bearing 2 that bear large radial and axial loads. A reasonable height of the oil reservoir 21 can effectively control lubricating oil leakage, preventing lubricating oil from escaping from the oil reservoir 21 during high-speed operation or tilting, thus affecting the normal operation of the lubrication system. The design of the H2 height range can balance the storage and sealing performance of the lubricating oil, avoiding problems such as lubricating oil waste and environmental pollution caused by improper design.

[0042] In this embodiment, there is a preset distance K between the inner wall of the oil storage tank 21 and the outer peripheral wall of the oil guide 22, and the preset distance K satisfies: 1mm≤K≤3mm.

[0043] By designing a preset spacing K, suitable space conditions are provided for the lubricating oil to form an oil film between the oil reservoir 21 and the oil guide 22. Within the range of 1mm to 3mm, the lubricating oil can generate a sufficient oil film thickness when the crankshaft drive unit 10 rotates to separate the contact surfaces of mechanical parts, reduce friction and wear, and improve lubrication efficiency.

[0044] Designing a reasonable K-value range helps control the flow rate and pressure of lubricating oil within the oil reservoir 21. If the spacing is too small, the flow resistance of the lubricating oil increases, affecting the lubrication effect; while if the spacing is too large, it may lead to insufficient lubricating oil or an unstable oil film, also affecting lubrication. A preset spacing of 1mm to 3mm can balance the flow rate and pressure of the lubricating oil, ensuring smooth flow of lubricating oil between the oil guide 22 and the oil reservoir 21.

[0045] It is evident that the gap between the oil reservoir 21 and the oil guide 22 helps the lubricating oil better absorb and dissipate the heat generated by the mechanical parts during operation, thereby improving cooling capacity, maintaining the compressor's operating temperature within a reasonable range, and extending the equipment's service life. Simultaneously, an appropriate preset distance K can reduce the resistance of the lubricating oil within the oil reservoir 21, reducing energy consumption during compressor operation, while ensuring good lubrication between mechanical parts, indirectly improving the compressor's overall energy efficiency.

[0046] like Figures 3 to 5 As shown, in another embodiment of this application, the compressor thrust structure further includes: a plurality of second oil guide grooves 24, which are spaced apart along the circumferential direction of the bearing body 20 on one end surface of the bearing body 20 facing the crankshaft assembly 1, and the two ends of each second oil guide groove 24 are respectively connected to the oil reservoir 21 and the lubricating oil pool of the compressor.

[0047] The second oil guide groove 24, particularly along the circumferential direction of the bearing body 20, creates an effective lubricating oil circulation path. Lubricating oil flows from the oil reservoir 21 through the second oil guide groove 24 to the lubricating oil pool, and then circulates back to the oil reservoir 21 through the system, forming a closed loop of lubrication, cooling, and relubrication. This ensures continuous and effective circulation of lubricating oil within the system, improving the efficiency of the lubrication system. The multiple second oil guide grooves 24 arranged circumferentially can evenly distribute lubricating oil across the entire surface of the thrust bearing 2 in contact with the crankshaft, preventing localized wear or overheating caused by uneven lubricating oil distribution, and improving the stability and reliability of the compressor operation.

[0048] The flow of lubricating oil through the second oil guide groove 24 removes heat from the contact surface between the thrust bearing 2 and the crankshaft, thereby reducing the operating temperature and improving cooling efficiency. This is especially crucial for preventing overheating and extending equipment life, especially under high-speed or high-load operating conditions. It is evident that uniform lubricating oil distribution and efficient cooling significantly reduce wear between the thrust bearing 2 and the crankshaft, while also reducing noise and vibration caused by dry friction or excessive wear, thus improving the compressor's operating quality. The addition of the second oil guide groove 24 makes the entire lubrication system design more complete and efficient. It not only enhances the circulation and distribution of lubricating oil but also allows for flexible adjustment of the lubricating oil flow and pressure according to the actual operating conditions of the compressor, enabling the lubrication system to better adapt to different operating conditions.

[0049] In this application, through the combined design of the oil reservoir 21, the first oil guide groove 220, and the second oil guide groove 24, the lubricating oil in the oil reservoir 11 enters the oil reservoir 21. Part of it is discharged from the second oil guide groove 24 by centrifugal force, while the rest is discharged by the crankshaft movement, which drives the lubricating oil in the multiple spiral-structured first oil guide grooves 220 inwards, ultimately entering the lubricating oil pool to form a cycle. This allows the lubricating oil to flow more effectively on the sliding thrust surface, carrying away the heat generated by the friction between the thrust bearing 2 and the crankshaft drive unit 10 end face, improving the wear resistance of the thrust bearing 2, enhancing the compressor's reliability, and facilitating the expansion of the compressor's operating speed and operating range.

[0050] In this embodiment, each of the second oil guide grooves 24 is a straight groove and the groove wall of the second oil guide groove 24 is an arc-shaped structure. The groove wall of the second oil guide groove 24 has a preset radius r, and the preset radius r satisfies: 0 < r ≤ 2 mm.

[0051] It is evident that the arc-shaped groove wall structure significantly reduces the resistance of lubricating oil during flow compared to a right-angled edge. This is because the fluid flow is smoother at the arc-shaped edge, reducing the formation of eddies and turbulence, which helps the lubricating oil flow smoothly through the guide groove and improves circulation efficiency.

[0052] Furthermore, setting the preset radius r helps optimize the distribution of lubricating oil within the second oil guide groove 24. Within the range of 0 < r ≤ 2 mm, the lubricating oil can be distributed more evenly within the groove, avoiding uneven fluid distribution caused by imperfect groove wall shape, and ensuring balanced distribution of lubricating oil at the contact surface between the thrust bearing 2 and the crankshaft. Simultaneously, the arc-shaped groove wall reduces the scouring and wear of the lubricating oil on the groove wall, thereby extending the service life of the oil guide groove and the entire lubrication system. The smooth flow path also reduces damage to mechanical parts from solid particles that may be present in the lubricating oil, further reducing wear and improving system reliability.

[0053] According to another aspect of the present invention, a compressor is provided, including the compressor thrust structure mentioned above.

[0054] The optimized thrust structure design, including the oil reservoir 21, the oil guide component 22 and their preset spacing K, first preset height H1, second preset height H2, and the circumferentially distributed second oil guide groove 24, collectively ensures efficient circulation and distribution of lubricating oil between the thrust bearing 2 and the crankshaft, significantly improving lubrication efficiency. This not only reduces wear on mechanical parts but also ensures stable operation of the compressor under various operating conditions.

[0055] Through an improved lubrication system, the compressor can more effectively dissipate heat generated at the contact surfaces of the thrust bearing 2 and the crankshaft, ensuring controlled internal temperature and preventing overheating damage to mechanical components. This improves cooling performance and extends the compressor's lifespan. Furthermore, the optimized lubrication and cooling system reduces frictional resistance and mechanical losses while ensuring adequate lubrication, thus lowering energy consumption. This helps improve the compressor's energy efficiency ratio and reduce operating costs.

[0056] According to another aspect of the present invention, an air conditioner is provided, including the compressor mentioned above.

[0057] Optimized compressor design, especially improvements to the thrust structure, can significantly improve compressor energy efficiency. More efficient lubrication and cooling systems reduce internal losses, enabling the compressor to provide greater cooling or heating capacity while consuming the same amount of electricity, thereby improving the overall energy efficiency ratio of the air conditioner.

[0058] Furthermore, the improved compressor thrust structure reduces wear on key components, extending the compressor's lifespan and consequently the entire air conditioner's lifespan. This means users' investment in the equipment is more economical, reducing the frequency of replacement or maintenance. Simultaneously, the improved compressor design enhances its stability under various operating conditions, reducing the failure rate. The air conditioner operates more stably in harsh environments such as high and low temperatures and high humidity, allowing users to enjoy more reliable and consistent air conditioning service.

[0059] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: The compressor thrust structure includes a crankshaft assembly 1 and a thrust bearing 2. The crankshaft assembly 1 has a crankshaft drive section 10 and an oil reservoir 11, with the oil reservoir 11 surrounding the crankshaft drive section 10. The thrust bearing 2 includes a bearing body 20, with an oil reservoir 21 and an oil guide 22 at one end of the bearing body 20 facing the crankshaft assembly 1. The oil guide 22 is disposed within the oil reservoir 21 and is positioned below the opening of the oil reservoir 21. At least a portion of the crankshaft drive section 10 is located within the oil reservoir 21. The oil guide 22 is in contact with the oil reservoir 21 so that the oil guide 22 supports the crankshaft assembly 1. The oil reservoir 11 is connected to the oil reservoir 21. The oil guide 22 includes a first oil guide groove 220. The two ends of the first oil guide groove 220 are connected to the oil reservoir 21 and the center hole 23 of the thrust bearing 2, respectively, so that the lubricating oil flowing from the oil reservoir 11 into the oil reservoir 21 lubricates the thrust bearing 2 and the crankshaft drive part 10 and then flows into the compressor's lubricating oil pool through the first oil guide groove 220.

[0060] By providing an oil reservoir 21 and an oil guide 22 at the end of the bearing body 20 of the thrust bearing 2 facing the crankshaft assembly 1, the lubricating oil in the oil reservoir 11 can flow directly into the oil reservoir 21, improving the efficiency and utilization of the lubricating oil. This design ensures a continuous supply of lubricating oil in the contact area between the thrust bearing 2 and the crankshaft drive unit 10, avoiding waste and ineffective flow of lubricating oil. Furthermore, by positioning the oil guide 22 within the oil reservoir 21 and below its opening, this design allows the thrust bearing 2 to effectively support the crankshaft assembly 1, while the lubricating oil flows more stably and evenly under the guidance of the oil guide 22. This effectively improves the lubrication effect between the thrust bearing 2 and the crankshaft drive unit 10, reducing wear and friction caused by insufficient lubrication, and enhancing the operational stability and reliability of the compressor. This solves the technical problem in related technologies where poor lubrication at the thrust bearing 2 leads to wear on the thrust surface. Furthermore, the first oil guide groove 220 allows the lubricating oil, after completing the lubrication between the thrust bearing 2 and the crankshaft drive unit 10, to smoothly flow into the compressor's lubricating oil sump via the first oil guide groove 220, forming a closed lubricating oil circulation system. This circulation not only ensures the continuous and effective operation of the lubrication system but also promotes the control of lubricating oil temperature, preventing the performance degradation of the lubricating oil caused by high temperatures. It is evident that this application, by optimizing the guidance and circulation of lubricating oil, significantly improves the lubrication effect between the thrust bearing 2 and the crankshaft drive unit 10, enhancing the compressor's wear resistance and operational stability, reducing noise and vibration, and broadening its application range.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compressor thrust structure, characterized in that, include: The crankshaft assembly (1) has a crankshaft drive unit (10) and an oil reservoir (11) disposed around the crankshaft drive unit (10); The thrust bearing (2) includes a bearing body (20). The bearing body (20) is provided with an oil reservoir (21) and an oil guide (22) at one end facing the crankshaft assembly (1). The oil guide (22) is disposed in the oil reservoir (21) and is disposed below the opening of the oil reservoir (21). At least a portion of the crankshaft drive unit (10) is located in the oil reservoir (21) and contacts the oil guide (22) so that the oil guide (22) supports the crankshaft assembly (1). The oil storage chamber (11) is connected to the oil storage tank (21), and the oil guide (22) includes a first oil guide groove (220). The two ends of the first oil guide groove (220) are connected to the oil storage tank (21) and the center hole (23) of the thrust bearing (2), respectively, so that the lubricating oil flowing from the oil storage chamber (11) into the oil storage tank (21) lubricates the thrust bearing (2) and the crankshaft drive unit (10) and then flows into the lubricating oil pool of the compressor through the first oil guide groove (220).

2. The compressor thrust structure according to claim 1, characterized in that, The first oil guide groove (220) is multiple and each first oil guide groove (220) is arranged to extend along the arc direction. The multiple first oil guide grooves (220) are spaced apart along the circumferential direction of the oil guide member (22) to form a spiral structure.

3. The compressor thrust structure according to claim 1, characterized in that, The first oil guide groove (220) is provided in an arc direction and has an oil inlet (221) communicating with the oil storage groove (21) and an oil outlet (222) communicating with the center hole (23) of the thrust bearing (2). The tangent of the oil inlet direction of the first oil guide groove (220) and the tangent of the oil guide member (22) in its circumferential direction have a first preset angle A, and the tangent of the oil outlet direction of the first oil guide groove (220) and the tangent of the oil guide member (22) in its circumferential direction have a second preset angle B. Wherein, the first preset included angle A and the second preset included angle B satisfy: 10°≤A≤45°, 45°≤B≤80°.

4. The compressor thrust structure according to claim 3, characterized in that, The opening width of the first oil guide groove (220) in the circumferential direction of the oil guide member (22) gradually decreases along the flow direction of the lubricating oil in the first oil guide groove (220), the oil inlet (221) has a first opening width L1, and the oil outlet (222) has a second opening width L2. The first opening width L1 and the second opening width L2 satisfy the following conditions: 3mm≤L1≤5mm, 1mm≤L2≤3mm.

5. The compressor thrust structure according to claim 1, characterized in that, The highest height of the oil guide (22) protruding from the bottom wall of the oil storage tank (21) is the first preset height H1, and the first preset height H1 satisfies: 0 < H1 ≤ 2 mm; And / or, The height of the first oil guide groove (220) is the same as the height of the oil guide component (22).

6. The compressor thrust structure according to claim 1, characterized in that, The depth of the oil storage tank (21) is the second preset height H2, which satisfies: 3mm≤H2≤4mm.

7. The compressor thrust structure according to claim 1, characterized in that, There is a preset distance K between the inner wall of the oil storage tank (21) and the outer peripheral wall of the oil guide (22), and the preset distance K satisfies: 1mm≤K≤3mm.

8. The compressor thrust structure according to claim 1, characterized in that, The compressor thrust-resistant structure also includes: Multiple second oil guide grooves (24) are spaced apart along the circumferential direction of the bearing body (20) on one end surface of the bearing body (20) facing the crankshaft assembly (1), and the two ends of each second oil guide groove (24) are respectively connected to the oil reservoir (21) and the lubricating oil pool of the compressor.

9. The compressor thrust structure according to claim 8, characterized in that, Each of the second oil guide grooves (24) is a straight groove and the groove wall of the second oil guide groove (24) is an arc-shaped structure. The groove wall of the second oil guide groove (24) has a preset radius r, and the preset radius r satisfies: 0 < r ≤ 2 mm.

10. A compressor, characterized in that, The compressor thrust structure includes any one of claims 1 to 9.

11. An air conditioner, characterized in that, Includes the compressor as described in claim 10.

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