Scroll compressor and refrigeration equipment

Abstract

The invention discloses a scroll compressor and refrigeration equipment, the scroll compressor comprises: a static scroll plate; the movable scroll plate is rotatably connected to the static scroll plate, and the movable scroll plate and the static scroll plate are matched to define a compression cavity; an oil groove is formed in the disc face of the side, making contact with the static scroll disc, of the movable scroll disc, and the oil groove is in a ring shape extending in the circumferential direction of the movable scroll disc. According to the technical scheme, the problem of reliability failure or energy efficiency reduction caused by insufficient instantaneous oil supply or excessive continuous oil supply due to unstable oil supply between the disc surfaces of the static scroll disc and the dynamic scroll disc can be solved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a scroll compressor and refrigeration equipment. Background Technology

[0002] A scroll compressor generally includes a stationary scroll, a moving scroll, and a crankshaft. The moving scroll is mounted on the crankshaft and is fitted with the stationary scroll and can move relative to the stationary scroll. When the scroll compressor is working, the crankshaft makes an eccentric motion, which drives the moving scroll to move, so that the refrigerant forms a continuous operation of intake, compression, and discharge within the compression chamber defined by the cooperation of the stationary scroll and the moving scroll, thereby realizing the process of compressor intake, compression, and exhaust.

[0003] In related technologies, to solve the lubrication problem between the surfaces of the stationary and moving scroll plates, an oil groove is typically provided on the surface of the stationary scroll plate, and an oil supply channel is provided on the moving scroll plate. The oil outlet of the oil supply channel is periodically connected to the oil groove on the stationary scroll plate, achieving periodic oil supply to the oil groove. This oil supply method has poor stability. When oil supply stops, there is a momentary problem of insufficient oil supply to the surfaces of the moving and stationary plates, causing wear on the scroll plate surfaces. When there is continuous excessive oil supply, the momentary oil supply pressure of the scroll plate is too high, causing the surfaces of the moving and stationary plates to separate, resulting in refrigerant leakage and reduced energy efficiency. Summary of the Invention

[0004] The main objective of this invention is to propose a scroll compressor that aims to solve the problem of reliability failure or reduced energy efficiency caused by unstable oil supply between the static and dynamic scroll surfaces, resulting in insufficient instantaneous oil supply or excessive continuous oil supply.

[0005] To achieve the above objectives, the present invention provides a scroll compressor comprising:

[0006] Static vortex disk; and

[0007] A moving scroll plate is rotatably connected to a stationary scroll plate and cooperates with the stationary scroll plate to define a compression chamber; an oil groove is provided on the side of the moving scroll plate that contacts the stationary scroll plate, and the oil groove is annularly arranged along the circumference of the moving scroll plate.

[0008] In one embodiment, the oil sump is a closed loop extending circumferentially along the moving vortex disk.

[0009] In one embodiment, the moving vortex disk is provided with a first oil supply hole and a second oil supply hole arranged circumferentially at intervals, and the first oil supply hole and the second oil supply hole are respectively connected to the oil tank;

[0010] The line connecting the center of the first oil supply hole and the center of the moving scroll disk is defined as the first straight line, and the line connecting the center of the second oil supply hole and the center of the moving scroll disk is defined as the second straight line; the included angle between the first straight line and the second straight line is not less than 120° and not greater than 180°.

[0011] In one embodiment, the oil trough includes at least two sub-oil troughs arranged circumferentially along the moving vortex disk.

[0012] In one embodiment, two sub-oil troughs are provided, namely a first sub-oil trough and a second sub-oil trough. The first sub-oil trough and the second sub-oil trough are respectively placed on both sides of the moving scroll plate. The moving scroll plate is provided with a first oil supply hole communicating with the first sub-oil trough and a second oil supply hole communicating with the second sub-oil trough.

[0013] In one embodiment, the first oil supply hole is connected to the middle of the first sub-oil tank, and the second oil supply hole is connected to the middle of the second sub-oil tank.

[0014] In one embodiment, an oil collection groove is provided on the side of the stationary vortex disk that contacts the moving vortex disk.

[0015] In one embodiment, the moving scroll plate is provided with an oil supply channel, and the oil supply channel has an oil supply hole communicating with the oil tank.

[0016] In one embodiment, the scroll compressor further includes a throttling element disposed in the oil supply passage, the throttling element being used to regulate the oil supply pressure and oil supply quantity of the oil supply passage.

[0017] In one embodiment, the moving scroll disk includes a disk body, and moving scroll teeth and bearing seats respectively disposed on opposite sides of the disk body. The oil groove is disposed on the side of the disk body away from the bearing seat and located around the moving scroll teeth. The bearing seat is provided with a bearing cavity for the eccentric portion of the crankshaft to be inserted. The disk body is provided with the oil supply channel and an oil inlet hole communicating the oil supply channel and the bearing cavity. The crankshaft is provided with an oil supply channel communicating the oil sump of the scroll compressor and the bearing cavity.

[0018] The present invention also proposes a refrigeration device, including the scroll compressor described above.

[0019] The technical solution of this invention, by placing the oil groove on the moving scroll plate, reduces the probability of oil leakage from the oil groove to the back pressure chamber and suction chamber, making the pressure in the oil groove more stable and preventing large fluctuations. Furthermore, the oil groove is annular, extending circumferentially along the moving scroll plate, allowing the oil flow within the groove to better adapt to the rotational motion of the scroll plate. This reduces the flow resistance of the lubricating oil, accelerates its flow, and the annular shape of the oil groove further facilitates lubrication of the entire circumference of the contact area between the stationary and moving scroll plates. This solution, through optimized design of the oil supply structure, avoids reliability failures caused by wear between the plates due to insufficient instantaneous oil supply, and also avoids refrigerant leakage and reduced energy efficiency due to excessive oil supply causing separation of the stationary plate. This results in a more stable and reliable scroll compressor performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the scroll compressor of the present invention;

[0022] Figure 2 for Figure 1 A partial structural diagram of a mid-scroll compressor;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure of the centrally moving scroll disk;

[0024] Figure 4 This is a schematic diagram of the structure of an embodiment of the moving vortex disk in the present invention;

[0025] Figure 5 This is a schematic diagram of another embodiment of the moving scroll disk in the present invention.

[0026] Explanation of icon numbers:

[0027] label name label name 10 Static vortex disk 213 Oil inlet hole 20 Moving vortex disk 22 Moving spiral gear 21 Disk body 23 bearing housing 211 oil tank 231 bearing cavity 2111 First Sub-oil Tank 30 Throttling device 2112 Second sub-oil tank 40 crankshaft 212 fuel supply channel 41 Oil supply channel 2121 First oil supply port 50 chassis 2122 Second oil supply port 51 oil tank

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications 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 indications will also change accordingly.

[0031] Furthermore, if the embodiments of this invention 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. Thus, 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 where both A and B are satisfied simultaneously. 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 by this invention.

[0032] In related technologies, to solve the lubrication problem between the surfaces of the stationary and moving scroll plates, an oil groove is typically provided on the surface of the stationary scroll plate, and an oil supply channel is provided on the moving scroll plate. The oil outlet of the oil supply channel is periodically connected to the oil groove on the stationary scroll plate to achieve periodic oil supply to the oil groove. Mechanism testing revealed that the oil groove on the stationary scroll plate experiences significant leakage into the back pressure chamber and suction chamber, leading to large fluctuations in oil groove pressure. When oil supply stops, this results in momentary insufficient oil supply to both the stationary and moving scroll plates, causing wear on the scroll plate surfaces. Under continuous excessive oil supply, the momentary oil supply pressure of the scroll plate becomes too high, causing separation of the stationary and moving scroll plates, resulting in refrigerant leakage and reduced energy efficiency.

[0033] Based on this, the present invention proposes a scroll compressor designed to achieve continuous and stable oil supply between the surfaces of the stationary scroll plate 10 and the moving scroll plate 20, solving the problem of reliability failure or reduced energy efficiency caused by unstable oil supply leading to insufficient instantaneous oil supply or excessive continuous oil supply. It is understood that this scroll compressor can be applied to different types of refrigeration equipment, such as refrigerators, air conditioners, and refrigerated trucks, and is not limited to any specific type of equipment. The structure of the scroll compressor is described below.

[0034] Reference Figures 1 to 5 In one embodiment of the present invention, the scroll compressor includes a stationary scroll disk 10 and a moving scroll disk 20. The moving scroll disk 20 is rotatably connected to the stationary scroll disk 10 and cooperates with the stationary scroll disk 10 to define a compression chamber; an oil groove 211 is provided on the side of the moving scroll disk 20 that contacts the stationary scroll disk 10, and the oil groove 211 is annularly arranged extending along the circumference of the moving scroll disk 20.

[0035] Understandably, in a scroll compressor, the moving scroll 20 is connected to the crankshaft 40. The rotation of the crankshaft 40 drives the moving scroll 20 to rotate relative to the stationary scroll 10. During this rotation, the moving scroll teeth 22 of the moving scroll 20 mesh with the stationary scroll teeth of the stationary scroll 10, compressing the gas in the compression chamber before it is discharged from the exhaust port. The meshing structure between the moving scroll teeth 22 and the stationary scroll teeth can be referenced from the meshing structure in a conventional scroll compressor, and will not be elaborated further here. During the movement of the moving scroll 20 relative to the stationary scroll 10, the surface of the stationary scroll 10 meshes with the surface of the moving scroll 20. To reduce wear between them, lubrication is required between the surfaces of the moving scroll 20 and the stationary scroll 10.

[0036] In traditional technology, the surface of the stationary scroll plate is equipped with an oil groove. Mechanism testing revealed that the oil groove on the stationary scroll plate leaks significantly into the back pressure chamber and the intake chamber, resulting in large fluctuations in the oil groove pressure. Therefore, in this design, the oil groove 211 is placed on the moving scroll plate 20, which reduces the probability of leakage from the oil groove 211 into the back pressure chamber and the intake chamber, making the pressure within the oil groove 211 more stable and preventing large fluctuations. Furthermore, the oil groove 211 is annularly arranged extending circumferentially along the moving scroll plate 20, allowing the oil flow within the oil groove 211 to better adapt to the rotational motion of the moving scroll plate 20. This reduces the flow resistance of the lubricating oil, accelerates the flow of the lubricating oil, and the annular arrangement of the oil groove 211 is more conducive to lubricating the entire circumference of the contact area between the surfaces of the stationary scroll plate 10 and the moving scroll plate 20 as much as possible. This solution optimizes the oil supply structure, avoiding reliability failures caused by wear between the discs due to insufficient instantaneous oil supply, and also preventing refrigerant leakage and reduced energy efficiency caused by excessive oil supply leading to separation of the stationary disc. This makes the scroll compressor's performance more stable and reliable.

[0037] It should be noted that the oil groove 211 is an annular structure extending circumferentially along the moving scroll disk 20. Here, "annular" should be interpreted broadly, including both closed annular structures with one end connected to the other and non-closed annular structures with one or more breaks. For example, as... Figure 4 As shown, in one embodiment, the oil sump 211 rotates around the periphery of the scroll disk 20 to form a closed loop. For example, in another embodiment, as... Figure 5 As shown, the oil groove 211 includes at least two sub-oil grooves arranged circumferentially along the moving scroll disk 20, so that the oil groove 211 presents a non-closed ring shape with multiple breaks. The groove cross-sectional shape of the oil groove 211 can be determined according to the actual situation, such as arc shape, U-shape, square, triangular or other irregular shape, etc.

[0038] In one embodiment, the moving scroll plate 20 is provided with an oil supply channel 212, which has an oil supply hole communicating with the oil groove 211. Thus, lubricating oil in the oil supply channel 212 is delivered to the oil groove 211 via the oil supply hole. The number of oil supply holes can be set to one, two, three, or more as needed. The cross-sectional shape of the oil supply hole can be determined according to actual conditions, such as an arc shape, U-shape, square shape, triangle shape, or other irregular shapes. In this embodiment, both the oil groove 211 and the oil supply channel 212 are provided on the moving scroll plate 20. Thus, during the movement of the moving scroll plate 20, the oil supply channel 212 and the oil groove 211 can be continuously connected. The oil supply channel 212 can continuously provide a stable oil supply pressure to the oil groove 211, preventing oil leakage from the oil groove 211 towards the back pressure chamber and the suction chamber, thereby achieving continuous and stable oil supply between the surfaces of the stationary scroll plate 10 and the moving scroll plate 20.

[0039] like Figure 4 As shown, in one embodiment, the oil groove 211 is a closed ring extending circumferentially along the moving scroll plate 20. In this embodiment, the oil groove 211 extends circumferentially around the moving scroll plate 20 to form an annular groove structure with its ends connected. The oil groove 211 is fully connected, and the lack of spatial discontinuity allows for a reduction in groove width and leakage under the same flow resistance. It also enhances the oil supply at various points, thus making it more effective for the oil in the oil groove 211 to lubricate the entire circumference of the contact area between the stationary scroll plate 10 and the moving scroll plate 20. Of course, in some embodiments, the oil groove 211 may also be a non-closed ring. For example, a small break may be formed between the two ends of the oil groove 211, or the oil groove 211 may have multiple breaks along its circumference.

[0040] It is understandable that when the oil tank 211 is long, if the oil supply channel 212 has only one oil supply hole, the oil output from the oil supply hole needs to travel a long distance to reach the parts of the oil tank 211 that are far from the oil supply hole. Furthermore, oil loss is likely to occur during long-distance transport, leading to insufficient oil supply to parts of the oil tank 211 far from the oil supply hole, and uneven pressure distribution across the oil tank 211. Therefore, in one embodiment, the oil supply channel 212 has at least two oil supply holes arranged circumferentially along the moving scroll plate 20, each of which is connected to the oil tank 211. Supplying oil to the oil tank 211 simultaneously through at least two oil supply holes facilitates the flow of lubricating oil output from the oil supply channel 212 to all parts of the oil tank 211 in a shorter time, quickly forming an effective lubricating oil film, improving lubrication efficiency, ensuring sufficient oil supply to all parts of the oil tank 211, and making the pressure distribution more uniform across the oil tank 211.

[0041] Please refer to Figure 3 and Figure 4 In one embodiment, the moving scroll disk 20 is provided with a first oil supply hole 2121 and a second oil supply hole 2122 arranged circumferentially, and the first oil supply hole 2121 and the second oil supply hole 2122 are respectively connected to the oil groove 211; the line connecting the center of the first oil supply hole 2121 and the center of the moving scroll disk 20 is defined as a first straight line, and the line connecting the center of the second oil supply hole 2122 and the center of the moving scroll disk 20 is defined as a second straight line; the included angle between the first straight line and the second straight line is not less than 120° and not greater than 180°.

[0042] In this embodiment, the angle between the first straight line and the second straight line is not less than 120° and not greater than 180°. That is, the phase angle between the first oil supply hole 2121 and the second oil supply hole 2122 in the circumferential direction of the moving scroll plate 20 is between 120° and 180°. This results in a larger distance between the first oil supply hole 2121 and the second oil supply hole 2122, allowing the lubricating oil to cover a wider area. Furthermore, the simultaneous supply of oil to the oil groove 211 through the first oil supply hole 2121 and the second oil supply hole 2122 enables the lubricating oil to flow to all parts of the oil groove 211 in a shorter time, thereby quickly forming an effective lubricating oil film, improving lubrication efficiency, ensuring sufficient oil supply to all parts of the oil groove 211, and making the pressure distribution in all parts of the oil groove 211 more uniform. The angle between the first straight line and the second straight line can be 120°, 130°, 140°, 150°, 160°, 170°, 180°, or any other value between 120° and 180°. Optionally, the angle between the first and second straight lines is 180°. In this case, the first oil supply hole 2121 and the second oil supply hole 2122 are located on both sides of the radial direction of the moving scroll plate 20. This allows the lubricating oil to cover a wider area, improves the diffusion efficiency of the lubricating oil, and promotes rapid and sufficient lubrication of the entire end face area of ​​the scroll plate.

[0043] For example, in one specific embodiment, the moving scroll plate 20 is provided with an oil supply channel 212. The oil supply channel 212 has a first oil supply hole 2121 and a second oil supply hole 2122 that are respectively connected to the oil tank 211. The first oil supply hole 2121 and the second oil supply hole 2122 are arranged at intervals along the circumference of the oil supply channel 212. In this way, the lubricating oil output from the oil supply channel 212 can flow to various parts of the oil tank 211 through the first oil supply hole 2121 and the second oil supply hole 2122 in a short time, thereby achieving rapid lubrication.

[0044] Of course, the oil trough 211 can also be configured as a non-closed ring structure. For example, in one embodiment, the oil trough 211 includes at least two sub-oil troughs arranged at circumferential intervals along the moving vortex disk 20.

[0045] In this embodiment, the oil groove 211 includes at least two sub-oil grooves (e.g., a first sub-oil groove 2111 and a second sub-oil groove 2112) arranged circumferentially along the moving scroll plate 20, so that the oil groove 211 as a whole presents a non-closed annular structure, that is, a partition is formed between two adjacent sub-oil grooves. The oil supply channel 212 is used to supply oil to each sub-oil groove independently. With this arrangement, on the one hand, the length of each sub-oil groove is relatively short, so that the lubricating oil output from the oil supply channel 212 can quickly fill each sub-oil groove, thereby ensuring that there is sufficient lubricating oil in each sub-oil groove, and thus ensuring that the contact part between the moving scroll plate 20 and the stationary scroll plate 10 has a good lubrication effect throughout the entire circumference. On the other hand, since each sub-oil groove is separated from the others and the oil supply channel 212 supplies oil to each sub-oil groove independently, when the moving scroll plate 20 tilts, even if the sub-oil groove located in the gap between the moving scroll plate 20 and the stationary scroll plate 10 leaks lubricating oil, it will not affect the pressure of the sub-oil grooves in other parts of the moving scroll plate 20. This allows the sub-oil grooves at the contact point between the moving scroll plate 20 and the stationary scroll plate 10 to maintain sufficient lubricating oil, while reducing the overall amount of lubricating oil leakage. This ensures that the moving scroll plate 20 and the stationary scroll plate 10 can receive continuous and effective lubrication, thereby effectively reducing the wear at the contact point between the moving scroll plate 20 and the stationary scroll plate 10.

[0046] The number of sub-oil tanks 211 can be set to two, three, four or more as needed. In addition, the oil supply channel 212 can be provided with a single oil supply hole or multiple oil supply holes for each sub-oil tank 211.

[0047] For example, such as Figure 5 As shown, in one embodiment, there are two sub-oil troughs, namely a first sub-oil trough 2111 and a second sub-oil trough 2112. The first sub-oil trough 2111 and the second sub-oil trough 2112 are respectively placed on both sides of the moving scroll plate 20. The moving scroll plate 20 is provided with a first oil supply hole 2121 communicating with the first sub-oil trough 2111 and a second oil supply hole 2122 communicating with the second sub-oil trough 2112.

[0048] In this embodiment, the first sub-oil groove 2111 and the second sub-oil groove 2112 are arranged in a semi-circular arc with approximately equal lengths, and a gap is formed between the end of the first sub-oil groove 2111 and the end of the second sub-oil groove 2112. For example, the moving scroll plate 20 may be provided with an oil supply channel 212, which has a first oil supply hole 2121 communicating with the first sub-oil groove 2111 and a second oil supply hole 2122 communicating with the second sub-oil groove 2112. When the scroll compressor is working, the oil in the oil supply channel 212 can be continuously supplied to the first sub-oil groove 2111 through the first oil supply hole 2121, and the oil in the oil supply channel 212 can also be continuously supplied to the second sub-oil groove 2112 through the second oil supply hole 2122, thereby realizing independent and continuous stable oil supply to the sub-oil grooves 211 on both sides of the moving scroll plate 20. It is understandable that when the moving scroll plate 20 tilts, one side will tilt upwards and form a gap with the stationary scroll plate 10, while the other side remains in contact with the stationary scroll plate 10. For example, when the side of the moving scroll plate 20 with the first sub-oil groove 2111 tilts upwards, the side of the moving scroll plate 20 with the second sub-oil groove 2112 remains in contact with the stationary scroll plate 10. At this time, even if the lubricating oil in the first sub-oil groove 2111 leaks, since the first sub-oil groove 2111 and the second sub-oil groove 2112 are independent of each other, the pressure of the second sub-oil groove 2112 will not be affected, so that the second sub-oil groove 2112 still has a continuous and stable oil supply, thereby ensuring that the side of the moving scroll plate 20 in contact with the stationary scroll plate 10 can be adequately lubricated, which is beneficial to reducing the wear of the moving scroll plate 20 and the stationary scroll plate 10. The distance between the first sub-oil groove 2111 and the second sub-oil groove 2112 in the circumferential direction of the moving scroll plate 20 can be set according to actual needs, as long as the first sub-oil groove 2111 and the second sub-oil groove 2112 do not affect each other.

[0049] Furthermore, such as Figure 5 As shown, the first oil supply hole 2121 is connected to the middle position of the first sub-oil groove 2111, and the second oil supply hole 2122 is connected to the middle position of the second sub-oil groove 2112. This allows the lubricating oil output from the first oil supply hole 2121 to quickly diffuse from the middle position of the first sub-oil groove 2111 to both ends, and the lubricating oil output from the second oil supply hole 2122 to quickly diffuse from the middle position of the second sub-oil groove 2112 to both ends, thereby improving lubrication efficiency.

[0050] like Figure 2As shown, in one embodiment, the scroll compressor further includes a throttling element 30 disposed within the oil supply channel 212. The throttling element 30 is used to regulate the oil supply pressure and oil supply quantity of the oil supply channel 212. Specifically, the throttling element 30 may be a throttling rod inserted within the oil supply channel 212. The gap between the oil supply channel 212 and the throttling rod provides an oil flow area, and the oil supply pressure and oil supply quantity can be controlled by controlling the gap and length between them.

[0051] Please refer to Figures 1 to 3 In one embodiment, the moving scroll disk 20 includes a disk body 21, and moving scroll teeth 22 and bearing seats 23 respectively disposed on opposite sides of the disk body 21. The oil groove 211 is disposed on the side of the disk body 21 away from the bearing seat 23 and located around the moving scroll teeth 22. The bearing seat 23 is provided with a bearing cavity 231 for the eccentric part of the crankshaft 40 to be inserted. The disk body 21 is provided with the oil supply channel 212 and an oil inlet hole 213 connecting the oil supply channel 212 and the bearing cavity 231. The crankshaft 40 is provided with an oil supply channel 41 connecting the oil sump 51 of the scroll compressor and the bearing cavity 231.

[0052] In this embodiment, the bottom of the casing 50 of the scroll compressor is provided with an oil sump 51, the bottom of the crankshaft 40 is inserted into the oil sump 51, the top of the crankshaft 40 is provided with an eccentric part, the eccentric part is installed in the bearing cavity 231 of the moving scroll 20 through a bearing, and the crankshaft 40 is provided with an oil supply channel 41 that runs vertically through the top and bottom, the oil supply channel 41 connecting the oil sump 51 and the bearing cavity 231. The rotating scroll 20 has an oil supply channel 212 on its disc body 21. For example, the oil supply channel 212 can extend radially along the disc body 21. The two ends of the oil supply channel 212 are respectively provided with a first oil supply hole 2121 and a second oil supply hole 2122 penetrating the upper surface of the disc body 21. When the oil groove 211 is a complete circle, both the first oil supply hole 2121 and the second oil supply hole 2122 are connected to the oil groove 211. When the oil groove 211 includes a first sub-oil groove 2111 and a second sub-oil groove 2112 that are independent of each other, the first oil supply hole 2121 is connected to the first sub-oil groove 2111, and the second oil supply hole 2122 is connected to the second sub-oil groove 2112. When the scroll compressor is working, the rotation of the crankshaft 40 can drive the rotating scroll 20 to rotate relative to the stationary scroll 10, thereby realizing a series of actions such as intake, compression, and exhaust. At the same time, the lubricating oil in the oil sump 51 rises to the oil supply channel 41 under the action of centrifugal force, and passes through the bearing cavity 231, oil inlet 213, oil supply channel 212, first oil supply hole 2121, and second oil supply hole 2122 in sequence to reach the oil trough 211, thereby continuously supplying oil to the surfaces of the moving scroll plate 20 and the stationary scroll plate 10, ensuring that the oil trough 211 has a stable pressure, so as to maintain a stable lubrication effect between the moving scroll plate 20 and the stationary scroll plate 10.

[0053] Furthermore, in some embodiments, an oil collecting groove is provided on the side of the stationary scroll plate 10 that contacts the moving scroll plate 20. That is, in addition to the oil groove 211 on the moving scroll plate 20, the stationary scroll plate 10 also has an oil collecting groove, which further improves the lubrication effect between the moving scroll plate 20 and the stationary scroll plate 10. The structure of the oil collecting groove on the stationary scroll plate 10 can also refer to the structure of the oil groove 211 on the moving scroll plate 20. For example, the oil collecting groove is annular (specifically, it can be a closed ring or a non-closed ring) extending circumferentially along the stationary scroll plate 10.

[0054] This invention also proposes a refrigeration device, which includes a scroll compressor. The specific structure of the scroll compressor is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here. Optionally, the refrigeration device includes a refrigerator, an air conditioner, or a refrigerated truck, etc.

[0055] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A scroll compressor, characterized in that, include: Static vortex disk; as well as A moving scroll plate, which is rotatably connected to the stationary scroll plate and cooperates with the stationary scroll plate to define a compression chamber; The side of the moving scroll plate that contacts the stationary scroll plate is provided with an oil groove, which is annular in shape extending circumferentially along the moving scroll plate.

2. The scroll compressor as described in claim 1, characterized in that, The oil trough is a closed loop extending circumferentially along the moving vortex disk.

3. The scroll compressor as described in claim 2, characterized in that, The moving scroll plate is provided with a first oil supply hole and a second oil supply hole arranged at intervals along the circumference, and the first oil supply hole and the second oil supply hole are respectively connected to the oil tank; The line connecting the center of the first oil supply hole and the center of the moving scroll disk is defined as the first straight line, and the line connecting the center of the second oil supply hole and the center of the moving scroll disk is defined as the second straight line; the included angle between the first straight line and the second straight line is not less than 120° and not greater than 180°.

4. The scroll compressor as described in claim 1, characterized in that, The oil tank includes at least two sub-oil tanks arranged circumferentially along the moving vortex disk.

5. The scroll compressor as described in claim 4, characterized in that, There are two sub-oil troughs, namely a first sub-oil trough and a second sub-oil trough. The first sub-oil trough and the second sub-oil trough are respectively placed on both sides of the moving scroll plate. The moving scroll plate is provided with a first oil supply hole communicating with the first sub-oil trough and a second oil supply hole communicating with the second sub-oil trough.

6. The scroll compressor as described in claim 5, characterized in that, The first oil supply hole is connected to the middle of the first sub-oil tank, and the second oil supply hole is connected to the middle of the second sub-oil tank.

7. The scroll compressor as described in claim 1, characterized in that, An oil collection groove is provided on the side of the stationary vortex disk that is in contact with the moving vortex disk.

8. The scroll compressor according to any one of claims 1 to 7, characterized in that, The moving scroll plate is provided with an oil supply channel, and the oil supply channel has an oil supply hole that communicates with the oil tank.

9. The scroll compressor as described in claim 8, characterized in that, It also includes a throttling device disposed in the oil supply channel, which is used to adjust the oil supply pressure and oil supply volume of the oil supply channel.

10. The scroll compressor as described in claim 8, characterized in that, The moving scroll disk includes a disk body, and moving scroll teeth and bearing seats respectively disposed on opposite sides of the disk body. The oil groove is disposed on the side of the disk body away from the bearing seat and located around the moving scroll teeth. The bearing seat is provided with a bearing cavity for the eccentric part of the crankshaft to be inserted. The disk body is provided with the oil supply channel and an oil inlet hole that connects the oil supply channel and the bearing cavity. The crankshaft is provided with an oil supply channel that connects the oil sump of the scroll compressor and the bearing cavity.

11. A refrigeration device, characterized in that, Including the scroll compressor as described in any one of claims 1 to 10.

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