Oil storage structure and compressor

Abstract

The utility model provides an oil storage structure and a compressor, the oil storage structure comprises a counter weight directly or indirectly installed on a crankshaft, at least one of the counter weight and the crankshaft is provided with or connected with the oil storage structure, and the oil storage structure is constructed to store certain lubricating oil, so that the compressor can be in the initial stage of starting. And along with the rotation of the counter weight, the lubricating oil in the oil storage structure can be splashed to a movable scroll end plate or a thrust surface of the compressor. According to the utility model, various oil storage structure schemes are provided, and lubricating oil can be supplied immediately after the compressor is started through the schemes, so that the time from the starting of the compressor to the lubrication of the thrust surface can be effectively shortened, and the abrasion condition caused in the period can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a refrigeration device, in particular to an oil storage structure and a compressor. BACKGROUND

[0002] Scroll compressors are widely used in the fields of refrigeration, air conditioning and heat pump due to their high efficiency, small size, light weight and smooth operation.

[0003] In a vertical scroll compressor, the orbiting scroll is directly placed on the fixed frame in the axial direction and is supported by the thrust surface of the frame. Thus, during the operation of the scroll compressor, the thrust surface between the frame and the orbiting scroll will form relative friction, and when the lubricating oil cannot be continuously or timely supplied to the friction pair, the thrust surface may be worn, especially when the compressor is just started, there will be a time delay for the lubricating oil to be supplied to the thrust surface. When the thrust surface is severely worn, the performance of the scroll compressor will be reduced, and even the compressor will fail.

[0004] In the current lubricating oil supply system of the compressor, there are various schemes for supplying lubricating oil to the thrust surface, but these schemes have different problems:

[0005] 1. Since the lubricating oil needs to wait for the lubricating oil surface in the lubricating oil pool to accumulate to a certain height before it can work from the start of the compressor to the supply of lubricating oil to the thrust surface, there will be a long delay during which the thrust surface lacks lubricating oil and the risk of wear is greater.

[0006] 2. The lifting capacity of the oil pump is weak, and the time from starting to supplying lubricating oil to the thrust bearing is long, or the oil supply is insufficient.

[0007] 3. In order to balance the oil supply demand at high and low frequencies, the oil pump is designed to supply a low amount of oil at low frequency start, and the lubricating oil takes too long to reach the thrust bearing. SUMMARY

[0008] The purpose of the present application is to provide an oil storage structure to solve the problems raised in the background.

[0009] To achieve the above purpose, the technical solution adopted by the present application is an oil storage structure, which comprises a counterweight directly or indirectly mounted on a crankshaft, at least one of the counterweight and the crankshaft is provided with or connected with an oil storage structure, the oil storage structure is configured to store a certain amount of lubricating oil, so that during the initial start of the compressor, the lubricating oil in the oil storage structure can splash onto the orbiting scroll end plate or the thrust surface of the compressor as the counterweight rotates.

[0010] Further, a sliding block is mounted on the crankshaft, and the sliding block is provided with or connected with an oil storage structure.

[0011] The application also provides an oil storage structure, which comprises a counterweight directly or indirectly mounted on a crankshaft, wherein a slider is mounted on the crankshaft, and the slider is provided with or connected with the oil storage structure, and the oil storage structure is configured to store a certain amount of lubricating oil, so that the lubricating oil in the oil storage structure can splash onto the orbiting scroll end plate or thrust surface of the compressor at the initial stage of starting of the compressor along with rotation of the counterweight.

[0012] Based on the above two oil storage structure schemes, the application further provides the following technical schemes:

[0013] Further, the oil storage structure is a pit-shaped structure.

[0014] Further, the pit-shaped structure is formed by casting, powder metallurgy, machining, assembly or assembly of parts.

[0015] Further, the pit-shaped structure is a blind hole.

[0016] Further, the counterweight has a ring portion, the crankshaft has a shoulder, and the surface of the shoulder is lower than the upper surface of the ring portion, so that the pit-shaped structure is formed between the counterweight and the crankshaft.

[0017] Further, the pit-shaped structure is an oil storage cover connected with the counterweight, the counterweight has a ring portion, and the oil storage cover is attached to the edge position of the ring portion.

[0018] Further, the counterweight has a ring portion, and the oil storage structure is a protrusion arranged at the edge position of the ring portion, and the pit-shaped structure is formed between the protrusion and the upper surface of the ring portion.

[0019] Further, the oil storage structure is a loose porous structure capable of adsorbing lubricating oil.

[0020] Further, the counterweight has a counterweight portion, and the counterweight portion has an inner arc surface, and the distance between the center position of the inner arc surface and the rotation center of the crankshaft is greater than the distance between the two side positions of the inner arc surface and the rotation center of the crankshaft.

[0021] Further, it also comprises an oil scooping structure.

[0022] Further, the slider is configured to slide on the eccentric shaft of the compressor, and the slider is mounted together with the counterweight or integrally formed.

[0023] Further, the crankshaft is provided with a longitudinal channel for pumping lubricating oil, and the crankshaft is provided with an annular groove in communication with the longitudinal channel, and the annular groove is in communication with the outside and / or the oil storage structure.

[0024] Further, the crankshaft is provided with a longitudinal channel for pumping lubricating oil, the crankshaft is provided with an oil supply channel communicated with the longitudinal channel, the oil supply channel is configured to spray oil to the orbiting scroll end plate, or the thrust surface, or the counterweight.

[0025] Further, the oil scooping structure is further included.

[0026] The application further provides a compressor with the oil storage structure.

[0027] In summary, the application has the following advantages: the compressor can supply lubricating oil immediately after starting, which can effectively shorten the time from starting to lubricating the thrust surface, thereby avoiding the wear caused during this period. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only an embodiment of the application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0029] Figure 1 is a schematic diagram of a conventional compressor thrust surface lubricating oil supply scheme;

[0030] Figure 2 is a schematic diagram of the counterweight and / or crankshaft provided with an oil storage structure;

[0031] Figure 3 is a schematic diagram of the slider provided with an oil storage structure, a partial enlarged view and a partial sectional view;

[0032] Figure 4 is a schematic diagram of the ring part forming an oil storage structure;

[0033] Figure 5 is a schematic diagram of the crankshaft shaft shoulder forming an oil storage structure;

[0034] Figure 6 is a schematic diagram of forming an oil storage structure by an oil storage cover and a partial enlarged view;

[0035] Figure 7 is a top view of the attached Figure 6 ;

[0036] Figure 8 is a schematic diagram of forming an oil storage structure by assembly and a partial enlarged view;

[0037] Figure 9 is a schematic diagram of the counterweight and / or crankshaft provided with a loose porous structure;

[0038] Figure 10 is a schematic view of the loose porous structure on the slider, as well as a partial enlarged view and a partial cross-sectional view;

[0039] Figure 11 is a preferred scheme in Example 3;

[0040] Figure 12 is a schematic view of the oil storage structure and the oil scraping structure;

[0041] Figure 13 is a schematic view of the integrated slider and counterweight with the oil storage structure, as well as a partial cross-sectional view;

[0042] Figure 14 is an overall assembly view and an exploded view of the crankshaft with a ring groove;

[0043] Figure 15 is Figure 14 is a cross-sectional view of the position of the ring groove in the plane;

[0044] Figure 16 is a schematic view of the oil storage structure cooperating with the oil injection path;

[0045] Figure 17 is Figure 16 is a cross-sectional view of the partial area;

[0046] Figure 18 is a schematic view of another oil storage structure cooperating with the oil injection path. DETAILED DESCRIPTION

[0047] In order to make the technical problems to be solved by the present application, the technical solutions and the beneficial effects more clear and explicit, the embodiments of the present application will be further described in detail below with reference to the drawings. It should be pointed out that the embodiments are only a detailed description of the present application, and should not be regarded as a limitation of the present application. All the features disclosed in the embodiments of the present application, or the steps in the disclosed methods or processes, can be combined in any manner, except for mutually exclusive features and / or steps.

[0048] Example 1.

[0049] The present embodiment provides an oil storage structure, which comprises a counterweight 20 directly or indirectly mounted on a crankshaft 10. At least one of the counterweight 20 and the crankshaft 10 is provided with or connected to an oil storage structure. The oil storage structure is configured to store a certain amount of lubricating oil, so that during the initial start of the compressor, the lubricating oil in the oil storage structure can splash onto the dynamic scroll end plate 99 or the thrust surface of the compressor as the counterweight 20 rotates. Through the arrangement of the oil storage structure, the problem of insufficient lubricating oil supply to the thrust surface during the start of the compressor can be solved, the wear of the thrust surface is reduced, and the service life of the compressor is prolonged.

[0050] Preferably, a slider 30 is mounted on the crankshaft 10. The slider 30 is configured to slide on the eccentric shaft 11 of the crankshaft 10. The slider 30 is provided with or connected to an oil storage structure.

[0051] Regarding the design of the oil storage structure, this invention application provides multiple methods.

[0052] Method 1: The oil storage structure is a concave structure, which can be used to store a certain amount of lubricating oil. The concave structure is made by counterweight casting, powder metallurgy, machining, assembly of parts, or assembly.

[0053] For example, the pit-like structure can be formed by methods such as counterweight casting, powder metallurgy, and machining. The pit-like structure includes, but is not limited to, the following methods:

[0054] If the pitted structure is a blind hole, at least one of the counterweight 20, crankshaft 10, and slider 30 has a blind hole, as shown in the attached figure. Figure 2 Blind hole 41 on counterweight 20, blind hole 42 on crankshaft 10, as shown in the attached document. Figure 3 Blind hole 343 on slider 30. Blind holes can be of various shapes and are not limited to circles, squares, or cones.

[0055] For example, see Appendix Figure 4 The counterweight 20 has a ring 21, and the oil storage structure is a protrusion 22 located at the edge of the ring 21, forming a pit-like structure between the protrusion 22 and the upper surface of the ring 21.

[0056] For example, refer to the appendix Figure 5 The oil storage structure is a protrusion 22 located at the edge of the shoulder 12 of the crankshaft 10, and a pit-like structure is formed between the protrusion 22 and the upper surface of the shoulder 12.

[0057] For example, using assembled components to form a recessed structure. Recessed structures include, but are not limited to, the following:

[0058] See attached document Figure 6 , 7 The recessed structure is an oil reservoir 50, which is connected to a counterweight 20. The counterweight 20 has a ring 21, and at least a portion of the oil reservoir 50 is in contact with the edge of the ring 21. Further, preferably: as shown in the attached... Figure 6 In the case of oil reservoir 50, the height of the position where it is in contact with the ring 21 is at least partially lower than the height of the edge of the counterweight ring 21, or the height of the position where it is in contact with the ring 21 is at least partially the same as the height of the edge of the counterweight ring 21.

[0059] It is not recommended that the height of the part of the oil reservoir 50 that fits against the ring 21 be higher than the height of the edge of the counterweight ring 21, as this will affect the oil storage effect. Furthermore, the oil reservoir 50 is equipped with a blocking structure 51 to reduce the amount of lubricating oil inside the reservoir being thrown out by centrifugal force. The simplest blocking structure 51 is a flange on the oil reservoir 50.

[0060] It is important to note that the fit here includes both a complete fit between the oil reservoir 50 and the edge of the ring 21, and a close proximity between the edges of the oil reservoir 50 and the ring 21, with a gap between them. The goal is simply to allow the lubricating oil on the ring 21 to enter the oil reservoir 50. (See attached image) Figure 6 , 7 Only one bonding method has been disclosed; many other bonding methods are available.

[0061] For example, a recessed structure can be constructed using assembly methods. (See attached document.) Figure 4 The counterweight has a ring portion 21, and the crankshaft 10 has a shoulder 12. The surface of the shoulder 12 is lower than the upper surface of the ring portion 21, so that a pit-like structure is formed between the counterweight and the crankshaft 10.

[0062] Method 2: The oil storage structure is a loose, porous structure that can absorb lubricating oil. The loose, porous structure can not only store oil, but also help lubricating oil enter the loose, porous structure more quickly.

[0063] For details, please refer to the appendix. Figure 9 At least one of the counterweight 20 and the crankshaft 10 has or is connected to a loose porous structure, as shown in the attached... Figure 9 The loose porous structure 61 on the counterweight 20 and the loose porous structure 62 on the crankshaft 10 are shown in the attached diagram. Figure 10 The loose, porous structure on the middle slider 30 is 363.

[0064] Other methods: Free combinations of the schemes in Method 1 and Method 2. For example, the protrusion at the edge of the ring 21 in Method 1 can be combined with the loose porous structure in Method 2. Since there are too many ways to freely combine them, this invention will not list them all.

[0065] Example 2.

[0066] This embodiment provides an oil storage structure, as shown in the attached diagram. Figure 3The oil storage structure is arranged on the slider 30, and the slider 30 is arranged on the crankshaft 10, and the weight 20 is arranged on the crankshaft 10 directly or indirectly, so that the oil storage structure can store a certain amount of lubricating oil, and the lubricating oil in the oil storage structure can splash on the orbiting scroll end plate 99 or the thrust surface of the compressor at the initial stage of starting of the compressor and with the rotation of the weight 20. Through the arrangement of the oil storage structure, the problem of insufficient lubricating oil supply to the thrust surface of the compressor at the initial stage of starting of the compressor can be solved, the wear of the thrust surface is reduced, and the service life of the compressor is prolonged.

[0067] The other embodiments of the present embodiment are the same as those of embodiment 1.

[0068] Embodiment 3.

[0069] The present embodiment provides an oil storage structure, which is an improvement based on embodiment 1 or embodiment 2. In the present embodiment, the weight 20 in the weight oil storage structure includes a weight part 23, and the weight part 23 has an inner arc surface 24, and the distances from the points at different positions on the inner arc surface 24 to the rotation center O of the crankshaft are different, so that the lubricating oil can be collected to the position far from the rotation center O of the crankshaft on the inner arc surface 24 under the action of centrifugal force during the operation of the compressor, thereby more efficiently supplying oil.

[0070] As a preferred solution, refer to the accompanying drawings Figure 11 The distance R1 from the center position of the inner arc surface 24 to the rotation center O of the crankshaft is greater than the distance R2 from the two side positions of the inner arc surface to the rotation center O of the crankshaft.

[0071] The other embodiments of the present embodiment are the same as those of embodiment 1 or 2.

[0072] Embodiment 4.

[0073] The present embodiment provides an oil storage structure, which is an improvement based on embodiment 1 or 2 or 3. In the present embodiment, the weight oil storage structure further includes a oil scooping structure 70, which can have higher efficiency when supplying oil to the orbiting scroll end plate 99 or the thrust surface in combination with the oil storage structure. For example: Figure 12 The disclosed oil storage structure has a blind hole 44 form of oil storage structure on the ring part 21, and the weight oil storage structure further includes an oil scooping structure 70 capable of providing a guide slope 71, so that the lubricating oil in the oil storage structure can splash out with the rotation of the weight 20 at the initial stage of starting of the compressor, and be quickly thrown to the orbiting scroll end plate 99 or the thrust surface of the compressor by the oil scooping structure 70, having extremely high oil supply efficiency.

[0074] Since the specific implementation structure of the oil scooping structure 70 is various, it will not be listed one by one here, and other oil scooping structures 70 can refer to the existing oil scooping structures 70 in the prior art, including but not limited to the oil scooping structure 70 provided in the CN201910656199.6 patent.

[0075] Other embodiments of the present embodiment are the same as Embodiment 1 or 2 or 3.

[0076] Embodiment 5.

[0077] Currently, in some conventional compressor thrust face lubricating oil schemes, such as the attached Figure 1 The lubricating oil pumped out from the crankshaft 10 falls on the ring part 21 of the counterweight 20 through the first gap 96 between the eccentric shaft 11 and the dynamic scroll hub part 98, and the ring part 21 of the counterweight will receive all the lubricating oil, and then collide with the rotating counterweight 20, so as to splash onto the dynamic scroll end plate or the thrust face. It should be noted that in the conventional scheme, almost all the lubricating oil pumped out from the crankshaft 10 will enter the thrust face, so that too much lubricating oil flows through the thrust face, the temperature of the lubricating oil in the compressor rises quickly, and the temperature of the lubricating oil is always high, which will cause the lubricating performance of the lubricating oil to decrease, and the sealing performance of the lubricating oil film to decrease. At the same time, long-term high temperature will accelerate the oxidation of the lubricating oil, and generate carbon and lubricating oil sludge, so that the maintenance of the compressor becomes frequent. If regular maintenance is not performed or is not performed properly, it will also cause the compressor to frequently appear overheat protection and shutdown.

[0078] The present embodiment provides an oil storage structure for eliminating the heating of lubricating oil, which is an improvement based on any one of Embodiments 1-4. That is, the present embodiment can be combined with any one of Embodiments 1-4. Refer to the attached Figure 13 In the counterweight oil storage structure of the present embodiment, the sliding block 30 is installed together with or integrally formed with the counterweight 20. In this structure, when the compressor starts, the sliding block 30 will generate a second gap 97 with the eccentric shaft 11 of the scroll compressor. Different from the scheme of the conventional compressor, since the counterweight 20 is installed on the sliding block 30 rather than directly installed on the crankshaft 10, the second gap 97 makes the ring part 21 of the counterweight unable to receive all the lubricating oil. The second gap 97 will guide part of the lubricating oil pumped from the crankshaft 10 to flow back to the lubricating oil pool, and the remaining lubricating oil will flow to the ring part of the counterweight 20 through the third gap 95 between the sliding block 30 and the dynamic scroll hub part 98 bearing. Among the above-mentioned lubricating oil, part of the lubricating oil enters the oil storage structure, and part of the lubricating oil will be continuously sent into the dynamic scroll end plate 99 and the thrust face with the operation of the compressor. The above-mentioned structure solves the problem of too much lubricating oil entering the thrust face, slows down the speed of the temperature rise of the lubricating oil in the compressor, and also reduces the highest temperature that the lubricating oil can reach, so as to ensure that the lubricating oil can maintain good lubricating performance and sealing performance, reduce the generation of carbon and lubricating oil sludge, and also reduce the maintenance frequency of the compressor and the risk of overheating. At the same time, the integrated design helps to reduce the processing cost.

[0079] Preferably, if the thrust surface is found to have insufficient oil supply after the scheme of the present embodiment is adopted, the oil supply can be supplemented by opening an auxiliary oil supply hole 31 on the slider 30, which is in communication with the inside and outside. During the operation of the compressor, part of the lubricating oil that would have flowed back into the oil pool through the gap will enter the ring part of the counterweight 20 through the auxiliary oil supply hole 31. At the same time, since the slider will slide frequently during the operation of the compressor, the oil flowing out of the auxiliary oil supply hole 31 will have a certain jetting effect, which will help to produce splashing when colliding with the counterweight.

[0080] Preferably, the auxiliary oil supply hole 31 is arranged at a position close to the ring part 21 of the slider 30, so as to avoid the lubricating oil flowing out of the auxiliary oil supply hole 31 being blocked by the dynamic scroll hub part as much as possible.

[0081] The person skilled in the art can design the auxiliary oil supply hole 31 to have the most suitable size according to the actual situation of the operation of the compressor, so as to achieve the best oil supply of the thrust surface.

[0082] The other embodiments of the present embodiment are the same as those of Embodiment 1 or 2 or 3 or 4.

[0083] Embodiment 6.

[0084] The present embodiment provides an oil storage structure, which is an improvement based on any one of Embodiments 1-5. That is, the present embodiment can be combined with any one of Embodiments 1-5, so that the lubricating oil can enter the oil storage structure more quickly, and the dynamic scroll end plate and the thrust surface can be supplied with oil more efficiently, and the lubricating oil in the oil storage structure can be replenished more easily. In the present embodiment, the counterweight oil storage structure further comprises a longitudinal channel 80 for pumping lubricating oil in the crankshaft 10. The crankshaft 10 and / or the counterweight 20 is / are provided with an annular groove 81 in communication with the longitudinal channel 80, and the annular groove 81 is in communication with the outside and / or the oil storage structure (here, the outside refers to the space inside the compressor). In combination with the above structure, during the operation of the compressor, part of the lubricating oil in the longitudinal channel 80 will enter the annular groove 81 under the action of centrifugal force as the crankshaft 10 rotates. As the amount of lubricating oil in the annular groove 81 gradually increases, the lubricating oil in the annular groove 81 will flow to the outside and / or the oil storage structure through a second communication channel 83. The second communication channel 83 is arranged inside the crankshaft 10, or inside the counterweight 20, or formed after the crankshaft 10 and the counterweight 20 are assembled together. Compared with the traditional compressor structure, by arranging the annular groove 81, the lubricating oil no longer needs to enter the position of the dynamic scroll hub part 98 first, but can directly enter the outside and / or the oil storage structure, which improves the oil supply efficiency of the dynamic scroll end plate and the thrust surface, and makes the lubricating oil in the oil storage structure more easily replenished.

[0085] In the accompanying drawings: Figure 14 , the accompanying drawings: Figure 15In one disclosed embodiment, an annular groove 81 is provided on the crankshaft 10, the annular groove 81 is communicated with the longitudinal channel 80 through a first communication channel 82, a second communication channel 83 is formed after the crankshaft 10 is assembled with the counterweight 20, and the second communication channel 83 is communicated with the outside. The lubricating oil in the longitudinal channel 80 enters the annular groove 81 through the first communication channel 82, and then enters the outside through the second communication channel 83. Some of the lubricating oil in the outside splashes onto the orbiting scroll end plate and the thrust face, and some of the lubricating oil can be used to supplement the lubricating oil in the oil storage structure.

[0086] The other embodiments of the present embodiment are the same as those of Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4 or Embodiment 5.

[0087] Embodiment 7.

[0088] The present embodiment provides an oil storage structure, which is improved based on any one of Embodiments 1-6, i.e., the present embodiment can be combined with any one of Embodiments 1-6 to improve the oil supply efficiency of the orbiting scroll end plate 99 and the thrust face.

[0089] The counterweight oil storage structure further includes an oil supply channel 89 communicated with the longitudinal channel 80, the oil supply channel 89 is configured to spray oil to the orbiting scroll end plate 99, the thrust face, or the counterweight. For example, the second communication channel 83 provided in Embodiment 6 can be slightly improved to become a scheme of the oil supply channel 89, only by limiting the aperture of the communication outlet of the second communication channel 83 in Embodiment 6 to the outside, so as to form an oil spray path 90 as shown in Figure 16 , and the oil spray path 90 in Figure 7 . By fine-tuning the orientation of the outlet of the oil supply channel 89, the oil supply channel 89 can spray oil to the orbiting scroll end plate 99, or the thrust face, or the counterweight.

[0090] For another example, limiting the aperture of the communication outlet of the auxiliary oil supply hole 31 in Embodiment 5 to the outside can also become a scheme of the oil supply channel 89, referring to Figure 18 , an oil spray path 90 can also be formed. Different from the oil spray path in Figure 16 , the oil spray path in Figure 17 , the oil spray path in Figure 18 is formed by the sliding of the sliding block 30, so the oil spray path 90 in Figure 18 is intermittent.

[0091] The other embodiments of the present embodiment are the same as those of Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4 or Embodiment 5 or Embodiment 6.

[0092] Embodiment 8.

[0093] The present embodiment provides a compressor having the structure of any one of Embodiments 1-7.

[0094] Other implementation methods of this embodiment are the same as those of Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, Embodiment 5, Embodiment 6, or Embodiment 7.

[0095] The above are merely specific embodiments of the invention, but the scope of protection of the invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the invention. Therefore, the scope of protection of the invention should be determined by the scope of protection defined in the claims.

[0096] The invention shown and described herein can be practiced in the absence of any elements or limitations specifically disclosed herein. The terminology and expressions used are intended to be descriptive and not limiting, and it is not intended that any equivalents of the features shown and described herein or any portions thereof be excluded in the use of such terminology and expressions. It should be recognized that various modifications are possible within the scope of the invention. Therefore, it should be understood that although the invention has been specifically disclosed by way of various embodiments and optional features, modifications and variations of the concepts herein can be adopted by those skilled in the art, and such modifications and variations are considered to fall within the scope of the invention as defined in the appended claims.

[0097] The contents of any articles, patents, patent applications, and all other documents and information available electronically herein are incorporated herein by reference in their entirety, as if each individual publication were specifically and individually cited for reference. The applicant reserves the right to incorporate any and all material and information from any such articles, patents, patent applications, or other documents into this application.

Claims

1. An oil storage structure, characterized by, The counterweight is directly or indirectly mounted on the crankshaft, at least one of the counterweight and the crankshaft is provided with or connected with an oil storage structure, the oil storage structure is configured to store a certain amount of lubricating oil, so that the lubricating oil in the oil storage structure can splash on the orbiting scroll end plate or the thrust face of the compressor as the counterweight rotates in the initial stage of starting.

2. The oil storage structure according to claim 1, wherein The crankshaft is provided with a slider, and the slider is provided with or connected with an oil storage structure.

3. An oil storage structure, characterized by, The counterweight is directly or indirectly mounted on the crankshaft, the crankshaft is provided with a slider, and the slider is provided with or connected with an oil storage structure, the oil storage structure is configured to store a certain amount of lubricating oil, so that the lubricating oil in the oil storage structure can splash on the orbiting scroll end plate or the thrust face of the compressor as the counterweight rotates in the initial stage of starting.

4. The oil storage structure according to claim 1 or 2 or 3, wherein The oil storage structure is a pit-shaped structure.

5. The oil storage structure according to claim 4, wherein The pit-shaped structure is formed by casting, powder metallurgy, machining, assembling or assembling parts of the counterweight.

6. The oil storage structure according to claim 4, wherein The pit-shaped structure is a blind hole.

7. The oil storage structure according to claim 4, wherein The counterweight has a ring part, the crankshaft has a shaft shoulder, the surface of the shaft shoulder is lower than the upper surface of the ring part, so that the pit-shaped structure is formed between the counterweight and the crankshaft.

8. The oil storage structure according to claim 4, wherein The pit-shaped structure is an oil storage cover connected with the counterweight, the counterweight has a ring part, and the oil storage cover is attached to the edge position of the ring part.

9. The oil storage structure according to claim 4, wherein The counterweight has a ring part, the oil storage structure is a protrusion arranged at the edge position of the ring part, and the pit-shaped structure is formed between the protrusion and the upper surface of the ring part.

10. The oil storage structure according to claim 1 or 2 or 3, wherein The oil storage structure is a loose porous structure capable of adsorbing lubricating oil.

11. The oil storage structure according to claim 1 or 2 or 3, wherein The counterweight has a counterweight part with an inner arc surface, the distance between the center position of the inner arc surface and the rotation center of the crankshaft is greater than the distance between the two side positions of the inner arc surface and the rotation center of the crankshaft.

12. An oil storage structure according to any one of claims 1 to 9, wherein It also includes a scraping oil structure.

13. The oil storage structure according to claim 12, wherein The crankshaft is provided with a slider, and the slider is configured to slide on the eccentric shaft of the compressor, and the slider is mounted together with the counterweight or integrally formed.

14. An oil storage structure according to any one of claims 1 to 9, wherein The crankshaft is provided with a slider, and the slider is configured to slide on the eccentric shaft of the compressor, and the slider is mounted together with the counterweight or integrally formed.

15. The oil storage structure according to claim 13, wherein The crankshaft is provided with a longitudinal channel for pumping lubricating oil, and the crankshaft is provided with an annular groove in communication with the longitudinal channel, and the annular groove is in communication with the outside and / or the oil storage structure.

16. An oil storage structure according to any one of claims 1 to 9, wherein The crankshaft is provided with a longitudinal channel for pumping lubricating oil, and the crankshaft is provided with an oil supply channel in communication with the longitudinal channel, and the oil supply channel is configured to spray oil to the orbiting scroll end plate, or the thrust face, or the counterweight.

17. The oil storage structure according to claim 16, wherein It also includes a scraping oil structure.

18. The oil storage structure according to claim 10, wherein It also includes a scraping oil structure.

19. The oil storage structure according to claim 11, wherein It also includes a scraping oil structure.

20. The oil storage structure according to claim 10, wherein The crankshaft is provided with a slider, and the slider is configured to slide on the eccentric shaft of the compressor, and the slider is mounted together with the counterweight or integrally formed.

21. The oil storage structure according to claim 11, wherein The crankshaft is provided with a slider, and the slider is configured to slide on the eccentric shaft of the compressor, and the slider is mounted together with the counterweight or integrally formed.

22. The oil storage structure according to claim 10, wherein The crankshaft has a longitudinal channel for pumping lubricating oil, and the crankshaft has an oil supply channel in communication with the longitudinal channel, and the oil supply channel is configured to spray oil to the orbiting scroll end plate, or the thrust face, or the counterweight.

23. The oil storage structure according to claim 11, wherein The crankshaft has a longitudinal channel for pumping lubricating oil, and the crankshaft has an oil supply channel in communication with the longitudinal channel, and the oil supply channel is configured to spray oil to the orbiting scroll end plate, or the thrust face, or the counterweight.

24. A compressor characterized by, An oil storage structure as claimed in any one of claims 1 to 23.

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