Stationary scroll structure and scroll compressor

Abstract

The present application relates to the technical field of compressors. Disclosed are a stationary scroll structure and a scroll compressor. The stationary scroll structure comprises a stationary scroll, wherein the stationary scroll has a first end and a second end, which are opposite each other; the second end of the stationary scroll is configured to cooperate with an orbiting scroll to form a compression cavity; an oil supply flow channel is formed on the stationary scroll; an oil supply hole and an oil intake hole are formed on the oil supply flow channel; the oil supply hole is provided at the second end of the stationary scroll and is located on the surface of the stationary scroll cooperating with the orbiting scroll; and the oil intake hole is configured to introduce lubricating oil.

Description

Static scroll structure and scroll compressor

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202510100158.4, filed on January 21, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of compressor technology, and in particular to a static scroll structure and a scroll compressor. Background Technology

[0004] Currently, scroll compressors consist of a stationary scroll, a moving scroll, and a crankshaft. The moving scroll is mounted on the crankshaft and is assembled with the stationary scroll, allowing it to move relative to it. During operation, the crankshaft undergoes eccentric motion, while the moving scroll revolves, thus realizing the compressor's intake, compression, and exhaust processes. After assembly, the stationary and moving scrolls come into contact. During compressor operation, the surfaces of the moving and stationary scrolls press and rub against each other to seal the chamber. This pressing and friction between the moving and stationary scroll surfaces easily leads to abnormal wear. Therefore, an oil groove structure is typically provided on the stationary scroll surface, and oil is supplied to the oil groove through an oil supply hole on the moving scroll surface. This forms an oil film between the moving and stationary scrolls, and lubrication is achieved through the rotation of the moving scroll. However, the high oil temperature of this lubrication structure results in a lower viscosity of the lubricating oil. On the one hand, it is not easy to form an oil film, and on the other hand, the refrigerant is easily released to the contact surface of the moving and stationary discs, which will damage the oil film and worsen the lubrication between the moving and stationary scroll discs, leading to wear on the disc surface. Summary of the Invention

[0005] The main objective of this application is to propose a static scroll disc structure and a scroll compressor, which aims to solve the problem of high oil temperature in existing disc lubrication structures, leading to deterioration of disc lubrication.

[0006] To achieve the above objectives, the present application proposes a static vortex disk structure, which includes a static vortex disk having a first end and a second end opposite to each other. The second end of the static vortex disk is used to cooperate with a moving vortex disk to form a compression cavity.

[0007] An oil supply channel is formed on the stationary scroll plate, and an oil supply hole and an oil inlet hole are formed on the oil supply channel. The oil supply hole is located at the second end of the stationary scroll plate and is located on the plate surface where the stationary scroll plate and the moving scroll plate cooperate. The oil inlet hole is used to introduce lubricating oil. The lubricating oil in the oil supply channel can absorb the cold energy of the refrigerant in the compression chamber and cool it down.

[0008] In one embodiment, the oil supply channel has an axial flow channel section that extends axially along the stationary vortex disk and is disposed adjacent to the periphery of the stationary vortex disk, so that the lubricating oil in the axial flow channel section can absorb the cooling energy of the refrigerant in the compression chamber and cool down.

[0009] In one embodiment, the outlet of the axial flow channel section includes the oil supply hole; and / or,

[0010] The oil inlet hole is located at the first end, and the inlet of the axial flow channel section includes the oil inlet hole.

[0011] In one embodiment, the oil supply channel has a circumferential channel section that extends circumferentially along the stationary vortex disk and is disposed adjacent to the periphery of the stationary vortex disk, so that the lubricating oil in the circumferential channel section can absorb the cooling energy of the refrigerant in the compression chamber and cool down.

[0012] In one embodiment, the circumferential flow channel section includes an oil cavity disposed on the stationary vortex disk, the oil cavity extending circumferentially along the stationary vortex disk and disposed adjacent to the periphery of the stationary vortex disk.

[0013] In one embodiment, the first end is provided with an oil pool, the oil pool is provided with an oil cover, and the oil cavity is defined between the oil pool and the oil cover.

[0014] In one embodiment, the bottom wall of the oil tank is provided with heat dissipation ribs.

[0015] In one embodiment, multiple heat dissipation fins are provided, and the multiple heat dissipation fins are arranged at intervals along the circumference of the static vortex disk.

[0016] In one embodiment, the oil cavity has two first sidewalls that are radially opposite each other along the stationary vortex disk;

[0017] The two adjacent heat dissipation fins are respectively connected to the two first sidewalls.

[0018] In one embodiment, the oil cap includes a cap body and an insertion boss disposed on the cap body, the insertion boss being inserted into the oil sump; and / or,

[0019] The thermal conductivity of the oil cap is less than that of the static vortex disk.

[0020] In one embodiment, the oil supply channel has an axial flow channel section;

[0021] The outlet of the circumferential flow channel section is connected to the axial flow channel section.

[0022] In one embodiment, a flow regulating device is provided in the oil supply channel to regulate the flow rate through the oil supply channel.

[0023] In one embodiment, the oil supply channel has an axial flow channel section that extends axially along the stationary vortex disk.

[0024] The flow regulating device includes a throttling rod disposed within the axial flow channel section.

[0025] In one embodiment, multiple oil supply channels are provided, and the multiple oil supply channels are arranged at circumferential intervals along the stationary vortex disk.

[0026] In addition, this application also provides a scroll compressor, including a housing and a stationary scroll structure and a moving scroll disposed in the housing. The second end of the stationary scroll of the stationary scroll structure can cooperate with the moving scroll to form a compression chamber. The stationary scroll structure includes a stationary scroll, which has a first end and a second end opposite to each other. The second end of the stationary scroll is used to cooperate with the moving scroll to form a compression chamber.

[0027] An oil supply channel is formed on the stationary scroll plate, and an oil supply hole and an oil inlet hole are formed on the oil supply channel. The oil supply hole is located at the second end of the stationary scroll plate and is located on the plate surface where the stationary scroll plate and the moving scroll plate cooperate. The oil inlet hole is used to introduce lubricating oil. The lubricating oil in the oil supply channel can absorb the cold energy of the refrigerant in the compression chamber and cool it down.

[0028] In one embodiment, the moving scroll disk is provided with an oil groove, which is connected to the oil supply hole of the oil supply channel through a conductive structure.

[0029] In one embodiment, the oil trough and the conductive structure are configured as conductive groups in a one-to-one correspondence, and multiple conductive groups are provided, which are spaced apart along the circumference of the moving vortex disk.

[0030] In one embodiment, the conductive structure includes two conductive grooves respectively disposed on the stationary vortex disk and the moving vortex disk, and the two conductive grooves correspondingly connect the oil supply hole and the oil groove.

[0031] In one embodiment, each of the guide slots includes two first slot segments extending radially along the stationary vortex disk, wherein:

[0032] The two first slot segments are arranged at an included angle; and / or,

[0033] In one of the conductive grooves, the two first groove segments have the same length, while in the other conductive groove, the two first groove segments have different lengths.

[0034] In one embodiment, the housing includes an oil pan located at the end of the housing away from the stationary vortex disk structure, and the oil pan is connected to the oil supply channel of the stationary vortex disk structure via a guide pipe.

[0035] In the technical solution of this application, the second end of the stationary scroll plate is installed in conjunction with the moving scroll plate to form a compression chamber. When the moving scroll plate is running, the refrigerant in the compression chamber can be compressed. By providing the oil inlet hole on the stationary scroll plate, lubricating oil is introduced into the oil supply channel on the stationary scroll plate. The low-temperature refrigerant in the air intake of the compression chamber is used to cool the lubricating oil, which can effectively reduce the oil temperature in the oil supply channel, increase the viscosity of the lubricating oil, and facilitate the formation of an oil film on the plate surface between the moving scroll plate and the stationary scroll plate, thereby improving the lubrication effect between the plate surfaces. This solves the problem of high oil temperature in existing plate surface lubrication structures, which leads to deterioration of plate surface lubrication. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the static vortex disk structure provided in this application;

[0038] Figure 2 is a top view of the static vortex disk structure in Figure 1.

[0039] Figure 3 is a cross-sectional schematic diagram of the static vortex disk structure in Figure 1;

[0040] Figure 4 is a bottom view of the static vortex disk structure in Figure 1.

[0041] Figure 5 is a magnified view of part A in Figure 4;

[0042] Figure 6 is a three-dimensional structural diagram of the oil cap in Figure 1;

[0043] Figure 7 is a cross-sectional view of the oil cap in Figure 1;

[0044] Figure 8 is a three-dimensional structural schematic diagram of another embodiment of the static vortex disk structure in Figure 1;

[0045] Figure 9 is a three-dimensional structural schematic diagram of an embodiment of the scroll compressor provided in this application;

[0046] Figure 10 is a three-dimensional structural schematic diagram of an embodiment of the moving vortex disk in Figure 9;

[0047] Figure 11 is a schematic diagram of the structure of the moving vortex disk in Figure 9 from a bottom view;

[0048] Figure 12 is a bottom view of another embodiment of the moving vortex disk in Figure 9.

[0049] Explanation of icon numbers:

[0050] 100. Static vortex disk structure; 1. Static vortex disk; 11. First end; 12. Second end; 2. Oil supply channel; 21. Axial channel section; 211. Oil inlet; 212. Oil supply hole; 22. Circumferential channel section; 221. Oil cavity; 222. Oil sump; 2221. First sidewall; 223. Oil cover; 2231. Cover body; 2232. Insertion boss; 224. Heat dissipation fins; 23. Flow regulating device; 231. Throttling rod;

[0051] 1000, Scroll compressor; 3, Moving scroll plate; 31, Oil sump; 4, Conducting structure; 41, Conducting groove; 411, First groove section; 5, Oil pan.

[0052] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0055] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0056] Currently, scroll compressors consist of a stationary scroll, a moving scroll, and a crankshaft. The moving scroll is mounted on the crankshaft and is assembled with the stationary scroll, allowing it to move relative to it. During operation, the crankshaft undergoes eccentric motion, while the moving scroll revolves, thus realizing the compressor's intake, compression, and exhaust processes. After assembly, the stationary and moving scrolls come into contact. During compressor operation, the surfaces of the moving and stationary scrolls press and rub against each other to seal the chamber. This pressing and friction between the moving and stationary scroll surfaces easily leads to abnormal wear. Therefore, an oil groove structure is typically provided on the stationary scroll surface, and oil is supplied to the oil groove through an oil supply hole on the moving scroll surface. This forms an oil film between the moving and stationary scrolls, and lubrication is achieved through the rotation of the moving scroll. However, the high oil temperature of this lubrication structure results in a lower viscosity of the lubricating oil. On the one hand, it is not easy to form an oil film, and on the other hand, the refrigerant is easily released to the contact surface of the moving and stationary discs, which will damage the oil film and worsen the lubrication between the moving and stationary scroll discs, leading to wear on the disc surface.

[0057] Based on this, this application proposes a stationary scroll disk structure for a scroll compressor, aiming to solve the problem of high oil temperature in existing disk lubrication structures, leading to deterioration of disk lubrication. Figures 1 to 8 are schematic diagrams of the stationary scroll disk structure provided in this application; Figures 9 to 12 are schematic diagrams of the scroll compressor provided in this application.

[0058] Please refer to Figures 1 to 3. In one embodiment of this application, the stationary scroll structure 100 includes a stationary scroll 1. The stationary scroll 1 has a first end 11 and a second end 12 facing each other. The second end 12 of the stationary scroll 1 is used to cooperate with the moving scroll 3 to form a compression chamber. An oil supply channel 2 is formed on the stationary scroll 1. An oil supply hole 212 and an oil inlet hole 211 are formed on the oil supply channel 2. The oil supply hole 212 is located at the second end 12 of the stationary scroll 1 and is located on the disk surface where the stationary scroll 1 and the moving scroll 3 cooperate. The oil inlet hole 211 is used to introduce lubricating oil. The lubricating oil in the oil supply channel 2 can absorb the cold energy of the refrigerant in the compression chamber and cool it down.

[0059] In the technical solution of this application, the second end 12 of the stationary scroll plate 1 is installed in conjunction with the moving scroll plate 3 to form a compression chamber. When the moving scroll plate 3 is running, the refrigerant in the compression chamber can be compressed. By providing the oil inlet hole 211 on the stationary scroll plate 1, lubricating oil is introduced into the oil supply channel 2 on the stationary scroll plate 1. The low-temperature refrigerant in the air inlet of the compression chamber is used to cool the lubricating oil, which can effectively reduce the oil temperature of the lubricating oil in the oil supply channel 2 and increase the viscosity of the lubricating oil. This is beneficial to the formation of an oil film on the disc surface between the moving scroll plate 3 and the stationary scroll plate 1, improving the lubrication effect between the disc surfaces. This solves the problem of high oil temperature in existing disc surface lubrication structures, which leads to deterioration of disc surface lubrication.

[0060] It should be noted that during the operation of the existing scroll compressor 1000, the lubricating oil in the oil pan 5 flows into the crankshaft through the crankshaft suction pipe under the action of pressure difference, then enters the oil supply channel of the moving scroll 3 through the oil inlet on the moving scroll 3, and then flows into the oil groove 31 on the stationary scroll 1 through the conduction structure 4 between the moving scroll 3 and the stationary scroll 1, and flows along the oil groove 31 to other areas of the disk surface to lubricate the disk surface between the moving scroll 3 and the stationary scroll 1. This lubrication method results in a relatively high oil temperature in the oil groove 31, while the oil temperature is generally... Slightly higher than the exhaust temperature, excessively high oil temperature will reduce the viscosity of the lubricating oil, making it difficult for an oil film to form on the disk surface between the moving scroll 3 and the stationary scroll 1. Therefore, in this embodiment, the oil supply channel 2 is provided on the stationary scroll 1 so that the low-temperature refrigerant in the intake port of the compression chamber can be used to cool the lubricating oil. This can effectively reduce the oil temperature in the oil supply channel 2, increase the viscosity of the lubricating oil, and facilitate the formation of an oil film on the disk surface between the moving scroll 3 and the stationary scroll 1, thereby improving the lubrication effect between the disk surfaces.

[0061] In one embodiment of this application, please refer to Figures 1, 2 and 8. The oil supply channel 2 has an axial channel section 21. The axial channel section 21 extends along the axial direction of the stationary vortex disk 1 and is disposed adjacent to the periphery of the stationary vortex disk 1, so that the lubricating oil in the axial channel section 21 can absorb the cold energy of the refrigerant in the compression chamber to cool down.

[0062] It should be noted that the axial flow channel section 21 extending along the axial direction of the stationary vortex disk 1 means that the center of the axial flow channel section 21 can be parallel to the axial direction of the stationary vortex disk 1, or it can be at a certain angle to the axial direction of the stationary vortex disk 1. This application does not limit this. The axial flow channel section 21 being located adjacent to the periphery of the stationary vortex disk 1 means that the axial flow channel section 21 is located in the area between the outermost peripheral sidewall of the compression chamber and the outer peripheral surface of the stationary vortex disk 1. Furthermore, the axial flow channel section 21 can have various shapes, such as circular, rectangular, or rhomboid, etc. This application does not limit this. In addition, since the scroll compressor 1000 generally intakes air from the edge of the stationary scroll plate 1 and exhausts air from the center of the stationary scroll plate 1, the refrigerant temperature in the compression chamber gradually increases from the edge of the stationary scroll plate 1 towards its center. Therefore, the refrigerant temperature in the compression chamber at the periphery of the stationary scroll plate 1 is the lowest, and the refrigerant temperature in the compression chamber at the center of the stationary scroll plate 1 is the highest. Therefore, in this embodiment, the axial flow channel section 21 is arranged adjacent to the periphery of the stationary scroll plate 1 so that the axial flow channel section 21 can be close to the peripheral wall of the compression chamber at the edge of the stationary scroll plate 1, so that the lubricating oil in the axial flow channel section 21 can fully exchange heat with the refrigerant in the compression chamber to create turbulent cooling, thereby helping to improve the heat exchange effect between the lubricating oil and the refrigerant.

[0063] In this embodiment, the axial flow channel section 21 extends along the axial direction of the stationary vortex disk 1 so that the axial flow channel section 21 can be adapted to the side wall of the compression chamber, which is beneficial to increasing the heat exchange range between the axial flow channel section 21 and the compression chamber. At the same time, the axial flow channel section 21 is set near the periphery of the stationary vortex disk 1. On the one hand, the periphery of the stationary vortex disk 1 has sufficient space to facilitate the setting of the axial flow channel section 21, which can reduce the manufacturing difficulty of the axial flow channel section 21. On the other hand, the refrigerant temperature in the compression chamber near the periphery of the stationary vortex disk 1 is lower. Setting the axial flow channel section 21 near the periphery of the stationary vortex disk 1 allows the axial flow channel section 21 to be as close as possible to the outermost compression chamber, reducing the thermal resistance between the axial flow channel section 21 and the compression chamber. This allows the low-temperature refrigerant in the outermost compression chamber to cool the lubricating oil in the axial flow channel section 21, thereby helping to improve the heat exchange effect between the lubricating oil and the refrigerant.

[0064] In one embodiment of this application, please refer to Figures 3 and 4. The outlet of the axial flow channel section 21 includes the oil supply hole 212, so that the lubricating oil in the axial flow channel section 21 can flow to the disk surface between the stationary scroll plate 1 and the moving scroll plate 3, so as to lubricate the disk surface between the moving scroll plate 3 and the stationary scroll plate 1.

[0065] In another embodiment of this application, referring to FIG8, the oil inlet 211 is provided at the first end 11, and the inlet of the axial flow channel section 21 includes the oil inlet 211. Thus, through the oil inlet 211 provided at the first end 11, lubricating oil can be directly introduced into the axial flow channel, so that the refrigerant in the compression chamber can be used to cool the lubricating oil in the axial flow channel section 21. Of course, in other embodiments, referring to FIG2 and FIG3, the inlet of the axial flow channel can also communicate with the circumferential flow channel section 22 of the oil supply channel 2, as long as it allows lubricating oil to be introduced into the axial flow channel section 21; this application does not limit this.

[0066] It should be noted that the above two related technical features, "the outlet of the axial flow channel section 21 includes the oil supply hole 212" and "the inlet of the axial flow channel section 21 includes the oil inlet hole 211", can be set either one or both, and this application does not limit them.

[0067] In one embodiment of this application, please refer to Figures 1 to 3. The oil supply channel 2 has a circumferential channel section 22. The circumferential channel section 22 extends circumferentially along the stationary vortex disk 1 and is disposed adjacent to the periphery of the stationary vortex disk 1, so that the lubricating oil in the circumferential channel section 22 can absorb the cold energy of the refrigerant in the compression chamber to cool down.

[0068] It should be noted that the circumferential flow channel section 22 can extend along the circumference of the stationary vortex disk 1 in various ways. It can extend in a straight line or in an arc shape along the circumference of the stationary vortex disk 1, as long as it can guide the lubricating oil to flow along the circumference of the stationary vortex disk 1. This application does not limit this. Specifically, the circumferential flow channel section 22 is arc-shaped so that it can be adapted to the compression chamber, which is beneficial to improving the heat exchange effect of the circumferential flow channel section 22. The circumferential flow channel section 22 being located near the periphery of the stationary vortex disk 1 means that the circumferential flow channel section 22 is located in the area between the outermost peripheral sidewall of the compression chamber and the outer peripheral surface of the stationary vortex disk 1. Since the scroll compressor 1000 generally intakes air from the edge of the stationary scroll plate 1 and exhausts air from the center of the stationary scroll plate 1, the refrigerant temperature in the compression chamber gradually increases from the edge of the stationary scroll plate 1 towards its center. That is, the refrigerant temperature in the compression chamber at the periphery of the stationary scroll plate 1 is the lowest, and the refrigerant temperature in the compression chamber at the center of the stationary scroll plate 1 is the highest. Therefore, the circumferential flow channel section 22 is arranged near the periphery of the stationary scroll plate 1 so that the axial flow channel section 21 can be close to the top sidewall of the compression chamber at the edge of the stationary scroll plate 1. This allows the lubricating oil in the circumferential flow channel section 22 to fully exchange heat with the refrigerant in the compression chamber, thereby helping to improve the heat exchange effect between the lubricating oil and the refrigerant.

[0069] In this embodiment, the circumferential flow channel section 22 extends circumferentially along the stationary vortex disk 1 so that the circumferential flow channel section 22 can be adapted to the compression cavity, which helps to increase the heat exchange range between the circumferential flow channel section 22 and the compression cavity. At the same time, the circumferential flow channel section 22 is arranged adjacent to the periphery of the stationary vortex disk 1 so that the circumferential flow channel section 22 can be as close as possible to the outermost compression cavity, reducing the thermal resistance between the circumferential flow channel section 22 and the compression cavity. This allows the low-temperature refrigerant in the outermost compression cavity to cool the lubricating oil in the circumferential flow channel section 22, thereby helping to improve the heat exchange effect between the lubricating oil and the refrigerant.

[0070] Further, referring to Figures 1 and 2, the circumferential flow channel section 22 includes an oil cavity 221 disposed on the stationary vortex disk 1. The oil cavity 221 extends circumferentially along the stationary vortex disk 1 and is disposed adjacent to the periphery of the stationary vortex disk 1. Thus, by providing the oil cavity 221, on the one hand, the volume of the circumferential flow channel section 22 can be increased, so that the circumferential flow channel section 22 can cool more lubricating oil. On the other hand, the heat exchange area of ​​the circumferential flow channel section 22 can be increased, thereby helping to improve the heat exchange effect of the circumferential flow channel section 22.

[0071] It should be noted that the oil cavity 221 is located at the first end 11 of the stationary vortex disk 1 so as to utilize the thickness of the stationary vortex disk 1 for layout, which facilitates the setting of the oil cavity 221 and improves the space utilization of the stationary vortex disk 1.

[0072] In one embodiment of this application, referring to Figures 1 and 6, the first end 11 is provided with an oil pool 222, the oil pool 222 is provided with an oil cover 223, and the oil cavity 221 is defined between the oil pool 222 and the oil cover 223. Thus, by providing the oil cover 223, the oil cavity 221 is formed together with the oil pool 222. Further, there are various ways to connect the oil cover 223 and the stationary vortex disk 1. The oil cover 223 and the stationary vortex disk 1 can be connected by welding or by screws, etc. This application does not limit this. Specifically, in this embodiment, the cover is detachably installed on the stationary vortex disk 1. Thus, the detachable connection facilitates subsequent maintenance or replacement.

[0073] In one embodiment of this application, the bottom wall of the oil tank 222 is provided with heat dissipation ribs 224. Since the bottom wall of the oil tank 222 is close to the compression chamber and is the main heat exchange surface of the lubricating oil, the heat dissipation ribs 224 are provided on the bottom wall of the oil tank 222 to increase the heat exchange area of ​​the lubricating oil, thereby helping to improve the heat exchange effect of the oil tank 222. It is understood that the number of heat dissipation ribs 224 can be one, two, three, or four, etc., and this application does not limit this. Specifically, in this embodiment, multiple heat dissipation ribs 224 are provided, and the multiple heat dissipation ribs 224 are arranged at intervals along the circumference of the stationary vortex disk 1. In this way, by providing the heat dissipation ribs 224, the heat dissipation area of ​​the oil tank 222 is increased, thereby helping to improve the heat dissipation effect of the oil tank 222.

[0074] In one embodiment of this application, referring to Figures 1 and 2, the oil cavity 221 has two first sidewalls 2221 that are radially opposite to each other along the stationary vortex disk 1. Two adjacent heat dissipation fins 224 are respectively connected to the two first sidewalls 2221, so that the multiple heat dissipation fins 224 are alternately arranged to form a curved flow channel in the oil pool 222, so as to reduce the flow rate of the lubricating oil in the oil pool 222 and increase the flow time of the lubricating oil in the oil pool 222, so that the lubricating oil in the oil pool 222 can fully exchange heat with the refrigerant in the compression cavity, thereby helping to improve the heat exchange effect between the lubricating oil and the refrigerant.

[0075] It is understood that there are various ways to arrange the multiple heat dissipation fins 224. For example, the multiple heat dissipation fins 224 can be evenly arranged along the circumference of the static vortex disk 1, or the spacing between two adjacent heat dissipation fins 224 can be increasing, or the spacing between two adjacent heat dissipation fins 224 can be decreasing, etc. This application does not limit this.

[0076] In one embodiment of this application, please refer to Figures 1 and 6. The oil cap 223 includes a cap body 2231 and an insertion boss 2232 disposed on the cap body 2231. The insertion boss 2232 is inserted into the oil sump 222. Thus, by providing the insertion boss 2232, the oil cap 223 can be inserted into the oil sump 222, which can increase the contact area between the oil cap 223 and the oil sump 222, which is beneficial to improving the sealing effect of the oil cap 223. It can also increase the thickness of the cap body, which is beneficial to improving the heat insulation effect of the oil cap 223. In addition, the position of the oil cap 223 can be positioned on the static vortex disk 1, which helps to quickly install the oil cap 223 onto the static vortex disk 1.

[0077] Further, referring to Figure 7, the oil inlet 211 is provided on the oil cap 223. Along the flow direction of the lubricating oil, the oil inlet 211 includes a first section with a larger cross-sectional area and a second section with a smaller cross-sectional area, so as to increase the inlet size of the oil inlet 211, thereby facilitating connection with the oil supply device.

[0078] In one embodiment of this application, the thermal conductivity of the oil cap 223 is less than that of the stationary vortex disk 1. Since the first end 11 of the stationary vortex disk 1 is close to the exhaust port of the compression chamber, the temperature above the first end 11 of the stationary vortex disk 1 is relatively high. Therefore, the oil cap 223 with lower thermal conductivity is used to isolate the oil chamber 221 from the external space of the stationary vortex disk 1, prevent the lubricating oil in the oil sump 222 from being heated, thereby helping to improve the heat insulation effect of the oil cap 223.

[0079] It should be noted that the two related technical features mentioned above, namely, "the oil cap 223 includes a cap body 2231 and an insertion boss 2232 provided on the cap body 2231" and "the thermal conductivity of the oil cap 223 is less than the thermal conductivity of the static vortex disk 1", can be set either one or both. Obviously, setting both at the same time will have a better effect.

[0080] In one embodiment of this application, referring to Figures 1 and 3, the oil supply channel 2 has an axial flow channel section 21, and the outlet of the circumferential flow channel section 22 is connected to the axial flow channel section 21. This allows the lubricating oil in the oil supply channel 2 to first flow through the circumferential flow channel section 22 for a primary heat exchange with the refrigerant in the compression chamber. The lubricating oil, after heat exchange, flows into the axial flow channel section 21 for a secondary heat exchange with the refrigerant in the compression chamber, and then flows through the oil supply hole 212 to the surface between the moving scroll plate 3 and the stationary scroll plate 1 to lubricate the surface between them. Of course, in other embodiments, the axial flow channel section 21 and the circumferential flow channel section 22 may also be connected to the end face of the second end 12 of the stationary scroll plate 1, and this application does not limit this.

[0081] In one embodiment of this application, please refer to Figures 1 and 2. A flow regulating device 23 is provided in the oil supply channel 2 to regulate the flow rate through the oil supply channel 2. In this way, by setting the flow regulating device 23, the flow rate of lubricating oil in the oil supply channel 2 can be adjusted to prevent excessive lubricating oil from flowing to the moving scroll plate 3 and the stationary scroll plate 1.

[0082] Furthermore, the flow regulating device 23 can be of various types, such as a throttle valve or a throttle rod 231, etc., and this application does not limit it in this regard. Specifically, in this embodiment, the oil supply channel 2 has an axial flow channel section 21, which extends along the axial direction of the stationary vortex disk 1. The flow regulating device 23 includes a throttle rod 231 disposed within the axial flow channel section 21. Since the circumferential flow channel section 22 is generally designed in an arc shape to accommodate the stationary vortex disk 1, which is not conducive to the installation of the flow regulating device 23, in this embodiment, the throttle rod 231 is provided in the axial flow channel section 21 to reduce the flow area of ​​the axial flow channel section 21, thereby preventing excessive lubricating oil from flowing to the disk surface between the moving vortex disk 3 and the stationary vortex disk 1.

[0083] In one embodiment of this application, multiple oil cavities 221 are provided, and the multiple oil cavities 221 are arranged at intervals along the circumference of the stationary vortex disk 1 and are interconnected. In this way, by increasing the number of oil cavities 221, the heat exchange area of ​​the circumferential flow channel section 22 is increased, thereby helping to improve the heat exchange effect of the circumferential flow channel section 22.

[0084] In one embodiment of this application, multiple oil supply channels 2 are provided, and the multiple oil supply channels 2 are arranged at intervals along the circumference of the stationary vortex disk 1. In this way, by increasing the number of oil supply channels 2, oil can be supplied to the disk surface between the moving vortex disk 3 and the stationary vortex disk 1 respectively.

[0085] To achieve the above objectives, this application also proposes a scroll compressor 1000. Referring to Figures 9 to 12, the scroll compressor 1000 includes a housing and a stationary scroll structure 100 and a moving scroll 3 disposed within the housing. The second end 12 of the stationary scroll 100 can cooperate with the moving scroll 3 to form a compression chamber. The specific structure of the stationary scroll structure 100 is as described in the above embodiments. Since this scroll compressor 1000 adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0086] In one embodiment of this application, the housing includes an oil pan 5 located at one end of the housing away from the stationary vortex structure 100. The oil pan 5 is connected to the oil supply channel 2 of the stationary vortex structure 100 through a guide pipe. Since the temperature at the oil pan 5 is low, the guide pipe is provided to guide the low-temperature lubricating oil in the oil pan 5 into the oil supply channel 2, thereby helping to reduce the oil temperature in the oil supply channel 2.

[0087] It should be noted that the guide tube can be of various types, such as copper tube or plastic tube, and this application does not limit it. However, since the guide tube passes through a heating component, such as a coil, when it connects from the oil pan 5 to the stationary vortex disk 1, the guide tube in this embodiment includes a plastic tube to prevent the lubricating oil in the guide tube from being heated.

[0088] In one embodiment of this application, referring to Figures 10 and 11, the moving scroll plate 3 is provided with an oil groove 31. The oil groove 31 is connected to the oil supply hole 212 of the oil supply channel 2 through a conductive structure 4. Since the oil groove 31 in existing lubrication structures is usually located on the stationary scroll plate 1, to ensure that the lubricating oil in the oil groove 31 does not leak, it means that after the moving scroll plate 3 contacts the stationary scroll plate 1, the sealing line at the outermost edge of the contact position along the distance from the oil groove 31 is relatively large, resulting in relatively poor oil supply at the corresponding position of the moving scroll plate 3. Therefore, by setting the oil groove 31 on the moving scroll plate 3, the sealing line can be fixed to a minimum value, thereby achieving better oil supply. Simultaneously, by providing the conductive structure 4, the oil supply hole 212 on the stationary scroll plate 1 can communicate with the oil groove 31 on the moving scroll plate 3, so as to lubricate the disc surface between the moving scroll plate 3 and the stationary scroll plate 1.

[0089] It should be noted that, as shown in Figure 12, the number of oil grooves 31 on the moving vortex disk 3 can vary, including one, two, three, or four, etc. The specific number can be set according to the needs, and this application does not limit it.

[0090] In one embodiment of this application, please refer to Figures 4, 10 and 11. The oil grooves 31 and the conductive structures 4 are configured as conductive groups in a one-to-one correspondence. Multiple conductive groups are provided, and the multiple conductive groups are arranged at intervals along the circumference of the moving scroll disk 3. In this way, by providing multiple conductive structures 4, multiple oil supply holes 212 can supply oil to the corresponding multiple oil grooves 31 respectively, thereby reducing the length of each oil groove 31. This allows the lubricating oil to flow to the tail end of the oil groove 31, which can avoid insufficient oil supply at the tail end of the oil groove 31 and allow the lubricating oil to quickly fill the disk surface, which helps to reduce the oil temperature of the lubricating oil.

[0091] In one embodiment of this application, the conductive structure 4 includes two conductive grooves 41 respectively disposed on the stationary scroll plate 1 and the moving scroll plate 3. The two conductive grooves 41 are respectively connected to the oil supply hole 212 and the oil groove 31. Thus, when the moving scroll plate 3 rotates to the point where the two conductive grooves 41 are in contact, the oil supply hole 212 on the stationary scroll plate 1 is connected to the oil groove 31 on the moving scroll plate 3, so that the lubricating oil in the oil supply channel 2 can flow into the oil groove 31 on the moving scroll plate 3 to lubricate the disk surface between the moving scroll plate 3 and the stationary scroll plate 1. It should be noted that the shape of the conductive groove 41 can be various, such as semi-circular or arc-shaped, and can be set according to needs. This application does not limit it in this regard.

[0092] In one embodiment of this application, referring to Figures 4 and 11, each of the guide grooves 41 includes two first groove segments 411 extending radially along the stationary scroll plate 1. The two first groove segments 411 are arranged at an angle. During the operation of the compressor, the moving scroll plate 3 is subjected to tangential gas force and normal centrifugal force. The normal centrifugal force causes the moving scroll plate 3 to tilt around the tangential axis. At certain rotation angles, the oil supply pressure will worsen the contact force. Therefore, it is necessary to control the oil supply pressure. In this embodiment, the connection angle of the two guide grooves 41 is controlled by the two first groove segments 411 arranged at an angle, thereby controlling the oil supply hole 212 to supply oil to the corresponding oil groove 31. Oil is supplied when the oil groove 31 needs oil and stopped when oil supply is not needed, so as to reduce the tilting torque on the moving scroll plate 3, thereby helping to improve the wear of the disk surface between the stationary scroll plate 1 and the moving scroll plate 3.

[0093] It should be noted that, since the moving scroll plate 3 revolves around the center of the stationary scroll plate 1, the guide groove 41 on the moving scroll plate 3 also revolves. According to the shape of the guide groove 41, the moving scroll plate 3 and the stationary scroll plate 1 can be connected at different operating angles so that the oil supply hole 212 can supply oil to the oil groove 31 on the moving scroll plate 3.

[0094] In one embodiment of this application, please refer to Figures 4 and 5. Each of the guide grooves 41 includes two first groove segments 411 extending radially along the stationary vortex disk 1. In one of the guide grooves 41, the two first groove segments 411 have the same length, while in the other guide groove 41, the two first groove segments 411 have different lengths from the second groove segment. This ensures that the communication angles of two adjacent guide grooves 41 on the moving vortex disk 3 at least partially coincide, so that two adjacent oil grooves 31 can be continuously supplied with oil during the rotation of the moving vortex disk 3.

[0095] It should be noted that, in order to illustrate the connection between multiple oil tanks 31, four oil tanks 31 will be used as an example. Please refer to Table 1 for details.

[0096] Table 1

[0097]

[0098] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A static vortex disk structure, wherein, The static vortex disk structure includes a static vortex disk, which has a first end and a second end opposite to each other. The second end of the static vortex disk is used to cooperate with the moving vortex disk to form a compression cavity. An oil supply channel is formed on the stationary scroll plate, and an oil supply hole and an oil inlet hole are formed on the oil supply channel. The oil supply hole is located at the second end of the stationary scroll plate and is located on the plate surface where the stationary scroll plate and the moving scroll plate cooperate. The oil inlet hole is used to introduce lubricating oil. The lubricating oil in the oil supply channel absorbs the cooling energy of the refrigerant in the compression chamber and cools down.

2. The static vortex disk structure as described in claim 1, wherein, The oil supply channel has an axial flow channel section that extends along the axial direction of the stationary vortex disk and is located adjacent to the periphery of the stationary vortex disk, so that the lubricating oil in the axial flow channel section absorbs the cooling energy of the refrigerant in the compression chamber to reduce its temperature.

3. The static vortex plate structure of claim 2, wherein, The outlet of the axial flow channel section includes the oil supply hole; and / or, The oil inlet hole is located at the first end, and the inlet of the axial flow channel section includes the oil inlet hole.

4. The static vortex plate structure of claim 1, wherein, The oil supply channel has a circumferential flow channel section that extends circumferentially along the stationary vortex disk and is located adjacent to the periphery of the stationary vortex disk, so that the lubricating oil in the circumferential flow channel section absorbs the cooling energy of the refrigerant in the compression chamber to reduce its temperature.

5. The static vortex plate structure of claim 4, wherein, The circumferential flow channel section includes an oil cavity disposed on the stationary vortex disk. The oil cavity extends circumferentially along the stationary vortex disk and is disposed adjacent to the periphery of the stationary vortex disk.

6. The static vortex disk structure as described in claim 5, wherein, The first end is provided with an oil pool, the oil pool is provided with an oil cover, and the oil cavity is defined between the oil pool and the oil cover.

7. The static vortex disk structure as described in claim 6, wherein, The bottom wall of the oil tank is equipped with heat dissipation ribs.

8. The static vortex disk structure as described in claim 6, wherein, The oil cap includes a cap body and an insertion boss disposed on the cap body, the insertion boss being inserted into the oil sump; and / or, The thermal conductivity of the oil cap is less than that of the static vortex disk.

9. The static vortex disk structure as described in claim 4, wherein, The oil supply channel has an axial flow channel section; The outlet of the circumferential flow channel section is connected to the axial flow channel section.

10. The static vortex disk structure as described in claim 1, wherein, A flow regulating device is provided in the oil supply channel to regulate the flow rate through the oil supply channel.

11. The static vortex disk structure as described in claim 10, wherein, The oil supply channel has an axial flow channel section that extends along the axial direction of the stationary vortex disk. The flow regulating device includes a throttling rod disposed within the axial flow channel section.

12. The static vortex disk structure as described in claim 1, wherein, Multiple oil supply channels are provided, and the multiple oil supply channels are arranged at intervals along the circumference of the stationary vortex disk.

13. A scroll compressor, wherein, The scroll compressor includes a housing and a stationary scroll structure and a moving scroll structure disposed within the housing. The stationary scroll structure includes the stationary scroll structure as described in any one of claims 1 to 12, wherein the second end of the stationary scroll of the stationary scroll structure cooperates with the moving scroll to form a compression chamber.

14. The scroll compressor as claimed in claim 13, wherein, The moving scroll plate is provided with an oil groove, which is connected to the oil supply hole of the oil supply channel through a conductive structure.

15. The scroll compressor as claimed in claim 14, wherein, The oil trough and the conductive structure are configured as conductive groups in a one-to-one correspondence. Multiple conductive groups are configured and spaced apart along the circumference of the moving vortex disk.

16. The scroll compressor as claimed in claim 14, wherein, The conductive structure includes two conductive grooves respectively disposed on the stationary vortex disk and the moving vortex disk, and the two conductive grooves are respectively connected to the oil supply hole and the oil groove.

17. The scroll compressor as claimed in claim 16, wherein, Each of the aforementioned guide slots includes two first slot segments extending radially along the stationary vortex disk, wherein: The two first slot segments are arranged at an included angle; and / or, In one of the conductive grooves, the two first groove segments have the same length, while in the other conductive groove, the two first groove segments have different lengths.

18. The scroll compressor as claimed in claim 13, wherein, The housing includes an oil pan located at one end of the housing away from the stationary vortex disk structure, and the oil pan is connected to the oil supply channel of the stationary vortex disk structure through a guide pipe.

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