Static scroll plate, compressor and refrigeration equipment

Abstract

The utility model provides a static scroll, compressor and refrigeration equipment, the static scroll is used for the compressor, the compressor comprises a dynamic scroll, the dynamic scroll is provided with an oil outlet hole, the static scroll comprises a plate body, the plate body is provided with a thrust surface, and the thrust surface is contacted with the dynamic scroll; the static vortex teeth are arranged on the disc body and located on the inner side of the thrust surface in the radial direction of the disc body; the oil groove is formed in the thrust surface, and the oil groove is intermittently communicated with the oil outlet hole; the at least one groove is formed in the thrust surface along the radial direction of the disc body, is positioned on the outer side of the oil groove, and is intermittently communicated with the oil outlet hole, so that the contact area between the dynamic vortex disc and the static vortex disc is effectively reduced, the abrasion of the contact surface between the dynamic vortex disc and the static vortex disc is obviously improved, and the service life of the compressor is prolonged; the reliability of the compressor is improved, and the lubricating requirement of the thrust surface can be met for the compressor with large displacement and high rotating speed.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular to a static scroll, a compressor and a refrigeration device. Background Art

[0002] The compression mechanism of a scroll compressor generally includes an orbiting scroll and a fixed scroll that mesh with each other, forming a series of compression chambers between them. When the drive shaft of the drive mechanism rotates, the crank pin of the drive shaft drives the orbiting scroll, causing it to rotate in a translational motion relative to the fixed scroll.

[0003] At present, the scroll compressors in the related technology generally have an annular oil groove on the disk surface of the fixed scroll, and the annular oil groove is intermittently connected to the oil outlet hole of the moving disk to supply oil to the thrust surfaces of the moving and static disks. However, for scroll compressors with large displacement and high speed, this oil supply method cannot meet the lubrication requirements of the thrust surfaces of the moving and static disks, resulting in greater wear between the thrust surfaces of the moving and static disks, affecting the reliability of the compressor operation. Utility Model Content

[0004] The embodiments of the present utility model are intended to solve at least one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of an embodiment of the present invention provides a stationary scroll.

[0006] A second aspect of the embodiments of the present invention provides a compressor.

[0007] A third aspect of the embodiments of the present invention provides a refrigeration device.

[0008] In view of this, according to the first aspect of an embodiment of the present utility model, a static scroll is provided, which is used for a compressor. The compressor includes a movable scroll, which is provided with an oil outlet hole. The static scroll includes: a disk body, which is provided with a thrust surface, which is in contact with the movable scroll; a static vortex tooth, which is provided on the disk body, and is located on the inner side of the thrust surface along the radial direction of the disk body; an oil groove, which is provided on the thrust surface, and is intermittently connected to the oil outlet hole; at least one groove, which is provided on the thrust surface, and is located on the outer side of the oil groove along the radial direction of the disk body, and is intermittently connected to the oil outlet hole.

[0009] The static scroll provided in the embodiment of the present invention includes a disk body, a static scroll tooth, an oil groove and at least one groove. Specifically, the static scroll tooth is arranged on the disk body. It can be understood that the movable scroll includes a movable scroll tooth, and the movable scroll tooth is engaged with the static scroll tooth so that the movable scroll and the static scroll enclose a compression chamber. Optionally, the disk body is also provided with an exhaust port, which is connected to the compression chamber. Specifically, when the compressor is running, the movable scroll rotates in a translational motion relative to the static scroll to compress the gas in the compression chamber. When the exhaust pressure is reached, the compressed high-temperature and high-pressure gas is discharged from the exhaust port.

[0010] The orbiting scroll is provided with an oil outlet. Optionally, the compressor further includes a crankshaft and an oil sump, the crankshaft being connected to the orbiting scroll, and an oil supply passage being provided within the crankshaft, one end of the oil supply passage being connected to the oil sump, and the other end being connected to the oil outlet. Specifically, when the compressor is operating, lubricating oil within the oil sump flows into the oil outlet through the oil supply passage. Since the oil trough is intermittently connected to the oil outlet, lubricating oil flowing out of the oil outlet can enter the oil trough to lubricate the contact surface between the orbiting scroll and the fixed scroll.

[0011] At least one groove is provided on the thrust surface, and at least one groove is located radially outside the oil groove. That is to say, in addition to the oil groove, at least one groove is added on the thrust surface of the fixed scroll, thereby effectively reducing the contact area between the movable scroll and the fixed scroll, significantly improving the wear of the contact surface between the movable scroll and the fixed scroll, and extending the service life of the compressor.

[0012] At least one groove is intermittently connected to the oil outlet. That is, when the compressor is operating, lubricating oil flowing out of the oil outlet can enter not only the oil groove but also the at least one groove. Because the at least one groove is located radially outward from the oil groove, the thrust surface is divided into at least three areas, and lubricating oil can flow into both the oil groove and the at least one groove, thereby achieving zoned lubrication, increasing the lubrication area of the thrust surface, and improving lubrication efficiency. This can also meet the lubrication needs of the thrust surface for compressors with large displacement and high speed, further reducing wear on the contact surface between the orbiting scroll and the stationary scroll, and improving the reliability of the compressor.

[0013] In addition, the static vortex provided by the above technical solution of the utility model also has the following additional technical features:

[0014] In some technical solutions, optionally, at least one groove is provided with a first connecting portion, the first connecting portion extends toward a side where the oil groove is located, and the first connecting portion is intermittently connected to the oil outlet.

[0015] In this technical solution, it is defined that at least one groove is provided with a first connecting portion. Specifically, the first connecting portion extends toward the side where the oil groove is located. Since at least one groove is located radially outside the oil groove, that is, the first connecting portion extends inward, that is, the first connecting portion is arranged close to the oil groove.

[0016] Since the oil groove is intermittently connected to the oil outlet hole, the first connecting part is placed close to the oil groove. During the process of the movable scroll moving relative to the fixed scroll, the first connecting part can be located within the movable range of the oil outlet hole, making it convenient for the groove to be intermittently connected to the oil outlet hole through the first connecting part, thereby facilitating the introduction of lubricating oil into the groove.

[0017] Since the first connecting portion is intermittently connected to the oil outlet, that is, the lubricating oil flowing out of the oil outlet enters the groove through the first connecting portion, thereby realizing zoned lubrication, increasing the lubrication area of the thrust surface, and improving the lubrication efficiency. For compressors with large displacement and high speed, it can also meet the lubrication needs of the thrust surface, which is beneficial to further reduce the wear of the contact surface between the orbiting scroll and the static scroll, and improve the reliability of the compressor.

[0018] In some technical solutions, optionally, the oil tank is provided with a second connecting portion, which is intermittently connected to the oil outlet; wherein the first connecting portion is configured to be close to the second connecting portion.

[0019] In this technical solution, it is defined that the oil groove is provided with a second connecting part. Specifically, the second connecting part is intermittently connected with the oil outlet hole. That is to say, the lubricating oil flowing out of the oil outlet hole enters the oil groove through the second connecting part to lubricate the contact surface between the movable scroll and the fixed scroll.

[0020] Since the second connecting part is intermittently connected to the oil outlet hole, the first connecting part is placed close to the second connecting part. During the process of the movable scroll moving relative to the fixed scroll, the first connecting part can be located within the movable range of the oil outlet hole, which facilitates the intermittent connection of the groove with the oil outlet hole through the first connecting part, thereby facilitating the introduction of lubricating oil into the groove.

[0021] In some technical solutions, optionally, along the radial direction of the disk body, at least a portion of the first connecting portion is opposite to the second connecting portion.

[0022] In this technical solution, at least a portion of the first connecting portion is defined to be radially opposite to the second connecting portion along the disk body, that is, the first connecting portion is close to the second connecting portion, so that during the translational motion of the movable scroll relative to the stationary scroll, the first connecting portion can be located within the movable range of the oil outlet hole, so that the groove is intermittently connected to the oil outlet hole through the first connecting portion, thereby facilitating the introduction of lubricating oil into the groove.

[0023] In some technical solutions, optionally, the flow area of the second connecting portion is larger than the flow area of the first connecting portion.

[0024] In this technical solution, the flow area of the second communication portion is defined to be larger than the flow area of the first communication portion, that is, the flow area of the second communication portion is larger and the flow area of the first communication portion is smaller.

[0025] Since the oil groove is intermittently connected to the oil outlet hole through the second connecting part, the flow area of the second connecting part is set to be larger, which facilitates the lubricating oil to quickly fill the oil groove and achieve lubrication of the thrust surface, which is beneficial to further reduce the wear of the contact surface between the orbiting scroll and the static scroll, and improve the reliability of the compressor.

[0026] Optionally, at least one groove communicates with the back-pressure chamber, so that, under the action of a pressure differential, the lubricating oil in the oil groove can flow radially outward, achieving zoned lubrication while increasing the lubrication area. Because the groove is intermittently connected to the oil outlet via the first connecting portion, the flow area of the first connecting portion is set to be relatively small, thereby ensuring that the lubricating oil is introduced into the groove while preventing excessive lubricating oil from flowing into the back-pressure chamber.

[0027] In some technical solutions, optionally, the number of the grooves is at least two, and the at least two grooves are spaced apart along the radial direction of the disk body; wherein, the groove close to the oil groove among the at least two grooves is intermittently connected to the oil outlet hole.

[0028] In this technical solution, the number of grooves is limited to at least two. Specifically, at least two grooves are arranged at intervals along the radial direction of the disk body. That is to say, in addition to the oil groove, at least two grooves are added to the thrust surface of the static scroll, thereby further reducing the contact area between the movable scroll and the static scroll while dividing the thrust surface into at least four areas.

[0029] Since the grooves closer to the oil grooves in at least two grooves are intermittently connected to the oil outlet holes compared to the other grooves, regional lubrication is achieved, the lubrication area of the thrust surface is increased, and the lubrication efficiency is improved. For compressors with large displacement and high speed, the lubrication needs of the thrust surface can also be met, and the wear of the contact surface between the orbiting scroll and the static scroll can be significantly improved, thereby extending the service life of the compressor and improving the reliability of the compressor.

[0030] In some technical solutions, optionally, at least one groove is an annular groove; and / or at least one groove includes a first end and a second end facing each other, and there is a distance between the first end and the second end along the circumference of the disk body.

[0031] In this technical solution, at least one groove is an annular groove, that is, at least one groove is closed and connected.

[0032] The at least one groove includes a first end and a second end that are opposite to each other. Specifically, the first end and the second end are spaced apart in the circumferential direction of the disc body. That is, the at least one groove is in a non-closed communication.

[0033] Specifically, at least one groove is in a closed communication. Alternatively, at least one groove is in a non-closed communication. Alternatively, there are at least two grooves, at least one of which is in a closed communication and at least one of which is in a non-closed communication. The number of grooves can be set according to actual needs.

[0034] Since at least one groove is an annular groove, that is, groove bodies are opened in the circumferential direction of the thrust surface, the contact area between the thrust surface and the movable scroll can be further reduced while increasing the lubrication area of the thrust surface and improving the lubrication effect.

[0035] In some technical solutions, optionally, based on at least one groove including a first end and a second end facing each other, there is a distance between the first end and the second end along the circumference of the disk body, and the angle α between the first end and the second end and the line connecting the center of the disk body satisfies α≥180°.

[0036] In this technical solution, when the groove is non-closed and connected, the angle between the line connecting the first end of the groove and the center of the disk body and the angle between the line connecting the second end of the groove and the center of the disk body is greater than or equal to 180°. That is to say, when the groove is a non-closed and connected groove body, the circumferential length of the groove is set to be longer, so as to ensure the lubrication area of the thrust surface in the circumferential direction, which is conducive to ensuring the lubrication effect.

[0037] In some technical solutions, optionally, based on at least one groove including a first end and a second end facing each other, there is a spacing between the first end and the second end along the circumference of the disk body. When the number of grooves is at least two, at least two grooves are distributed along the circumference of the disk body.

[0038] In this technical solution, when the grooves are non-closed and connected, and the number of grooves is at least two, at least two grooves are distributed along the circumference of the disk body, thereby ensuring the lubrication area of the thrust surface in the circumferential direction, which is conducive to ensuring the lubrication effect.

[0039] In some technical solutions, optionally, the compressor further includes a back pressure chamber, and at least one groove is connected to the back pressure chamber.

[0040] This technical solution specifies that the compressor also includes a backpressure chamber. It is understood that the backpressure chamber communicates with the compression chamber. During compressor operation, this communication between the compression chamber and the backpressure chamber introduces a medium pressure into the backpressure chamber. Optionally, a portion of the backpressure chamber is located on the side of the orbiting scroll facing away from the fixed scroll. This provides an axial force on the orbiting scroll during compressor operation, ensuring tight engagement between the orbiting and fixed scrolls, preventing leakage and improving compressor efficiency.

[0041] At least one groove is connected to the back pressure chamber, that is, the pressure in the oil groove is greater than the pressure in at least one groove, so that under the action of the pressure difference, the lubricating oil in the oil groove can flow radially outward, realizing zoned lubrication while increasing the lubrication area, improving lubrication efficiency, significantly reducing the wear of the contact surface between the orbiting scroll and the static scroll, and improving the reliability of the compressor. For compressors with large displacement and high speed, it can also meet the lubrication needs of the thrust surface.

[0042] In some technical solutions, optionally, the number of grooves is at least two, and the at least two grooves include a first groove and a second groove. Along the radial direction of the disk body, the first groove is located between the oil groove and the second groove, and the first groove and the second groove are respectively connected to the back pressure cavity; wherein, the connecting area between the second groove and the back pressure cavity is greater than the connecting area between the first groove and the back pressure cavity.

[0043] In this technical solution, at least two grooves are defined, including a first groove and a second groove. Specifically, along the radial direction of the disk body, the first groove is located between the oil groove and the second groove. That is, along the radial direction of the disk body, the oil groove, the first groove and the second groove are arranged in sequence from the inside to the outside.

[0044] Since both the first groove and the second groove are connected to the back pressure chamber, and the connection area of the first groove is smaller than the connection area of the second groove. Optionally, the area of the first groove exposed in the back pressure chamber is smaller than the area of the second groove exposed in the back pressure chamber. For example, only a portion of the first groove is exposed in the back pressure chamber, and the second groove is exposed in the back pressure chamber as a whole. This makes the pressure in the first groove greater than the pressure in the second groove, so that under the action of the pressure difference, the lubricating oil can flow radially outward, achieving zoned lubrication, while helping to further increase the lubrication area, improve lubrication efficiency, significantly reduce the wear of the contact surface between the movable scroll and the static scroll, improve the reliability of the compressor, and meet the lubrication requirements of the thrust surface for compressors with large displacement and high speed.

[0045] According to a second aspect of the present invention, a compressor is provided, comprising a stationary scroll provided by any of the above technical solutions, thereby possessing all the beneficial technical effects of the stationary scroll, which will not be described in detail here.

[0046] Furthermore, the compressor also includes a movable scroll and a back pressure chamber, wherein the movable scroll and the fixed scroll form a compression chamber, the movable scroll is provided with an oil outlet hole, the oil groove and at least one groove are intermittently connected to the oil outlet hole respectively, the back pressure chamber is connected to the compression chamber, and is partially located on the side of the movable scroll away from the fixed scroll.

[0047] The compressor provided by the embodiment of the present invention includes a fixed scroll, a movable scroll and a back pressure chamber. Specifically, the fixed scroll is provided on the disk body. It can be understood that the movable scroll includes a movable scroll, and the movable scroll is meshed with the static scroll so that the movable scroll and the static scroll enclose a compression chamber. Optionally, the disk body is also provided with an exhaust port, which is connected to the compression chamber. Specifically, when the compressor is running, the movable scroll rotates in a translational motion relative to the fixed scroll to compress the gas in the compression chamber. When the exhaust pressure is reached, the compressed high-temperature and high-pressure gas is discharged from the exhaust port.

[0048] The orbiting scroll is provided with an oil outlet. Optionally, the compressor further includes a crankshaft and an oil sump, the crankshaft being connected to the orbiting scroll, and an oil supply passage being provided within the crankshaft, one end of the oil supply passage being connected to the oil sump, and the other end being connected to the oil outlet. Specifically, when the compressor is operating, lubricating oil within the oil sump flows into the oil outlet through the oil supply passage. Since the oil trough is intermittently connected to the oil outlet, lubricating oil flowing out of the oil outlet can enter the oil trough to lubricate the contact surface between the orbiting scroll and the fixed scroll.

[0049] At least one groove is provided on the thrust surface, and at least one groove is located radially outside the oil groove. That is to say, in addition to the oil groove, at least one groove is added on the thrust surface of the fixed scroll, thereby effectively reducing the contact area between the movable scroll and the fixed scroll, significantly improving the wear of the contact surface between the movable scroll and the fixed scroll, and extending the service life of the compressor.

[0050] At least one groove is intermittently connected to the oil outlet. That is, when the compressor is operating, lubricating oil flowing out of the oil outlet can enter not only the oil groove but also the at least one groove. Because the at least one groove is located radially outward from the oil groove, the thrust surface is divided into at least three areas, and lubricating oil can flow into both the oil groove and the at least one groove, thereby achieving zoned lubrication, increasing the lubrication area of the thrust surface, and improving lubrication efficiency. This can also meet the lubrication needs of the thrust surface for compressors with large displacement and high speed, further reducing wear on the contact surface between the orbiting scroll and the stationary scroll, and improving the reliability of the compressor.

[0051] Furthermore, during compressor operation, the compression chamber communicates with the back-pressure chamber, introducing a medium pressure into the back-pressure chamber. A portion of the back-pressure chamber is located on the side of the orbiting scroll facing away from the fixed scroll. This provides an axial force on the orbiting scroll during compressor operation, ensuring tight engagement between the orbiting and fixed scrolls, preventing leakage and improving compressor efficiency.

[0052] Optionally, the compressor further includes a crankshaft connected to the orbiting scroll, the crankshaft being provided with an oil supply passage, one end of an oil outlet being connected to the oil supply passage, and the oil groove and at least one groove being intermittently connected to the other end of the oil outlet. Optionally, the compressor further includes a motor connected to the crankshaft. Specifically, driven by the motor, the crankshaft drives the orbiting scroll to perform translational orbiting relative to the fixed scroll, thereby compressing gas within the compression chamber.

[0053] In addition, the lubricating oil flowing out of the oil outlet hole can not only enter the oil tank, but also enter at least one groove, thereby realizing zoned lubrication, increasing the lubrication area of the thrust surface, and improving the lubrication efficiency. For compressors with large displacement and high speed, it can also meet the lubrication needs of the thrust surface.

[0054] Optionally, the compressor further includes a frame, which is disposed on a side of the orbiting scroll facing away from the fixed scroll and is used to support the orbiting scroll. The frame is provided with a recess, and an inner wall of the recess, the orbiting scroll, and a portion of the thrust surface enclose a back pressure chamber. Since the frame is disposed on a side of the orbiting scroll facing away from the fixed scroll, it is used to support the orbiting scroll.

[0055] The inner wall of the recess, the orbiting scroll, and part of the thrust surface enclose a backpressure chamber. During compressor operation, the compression chamber communicates with the backpressure chamber, introducing a medium pressure into the chamber. A portion of the backpressure chamber is located on the side of the orbiting scroll facing away from the fixed scroll. This provides an axial force on the orbiting scroll during compressor operation, ensuring tight engagement between the orbiting and fixed scrolls, preventing leakage and improving compressor efficiency.

[0056] According to the third aspect of the present invention, a refrigeration device is provided, including a static scroll or compressor provided by any of the above technical solutions, thereby having all the beneficial technical effects of the static scroll or compressor, which will not be repeated here.

[0057] Additional aspects and advantages of the present invention will be given in the following description, and some will become obvious from the following description, or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0059] Figure 1 One of the structural schematic diagrams of the static scroll according to one embodiment of the present utility model is shown;

[0060] Figure 2 FIG1 shows one of the partial structural schematic diagrams of a compressor according to an embodiment of the present utility model;

[0061] Figure 3 FIG2 shows a second partial structural diagram of a compressor according to an embodiment of the present utility model;

[0062] Figure 4 The second structural diagram of the static scroll according to one embodiment of the present utility model is shown;

[0063] Figure 5 The third structural diagram of the static scroll according to one embodiment of the present utility model is shown;

[0064] Figure 6 A fourth structural diagram of a stationary scroll according to an embodiment of the present invention is shown;

[0065] Figure 7 The third schematic diagram of the partial structure of the compressor according to an embodiment of the present utility model is shown.

[0066] in, Figures 1 to 7 The corresponding relationship between the reference numerals and component names is as follows:

[0067] 100 static scroll, 110 scroll body, 111 thrust surface, 120 static scroll tooth, 130 oil groove, 131 second connecting portion, 140 groove, 141 first connecting portion, 142 first groove, 143 second groove, 144 first end, 145 second end, 200 compressor, 210 orbiting scroll, 211 oil outlet hole, 220 compression chamber, 230 back pressure chamber, 240 crankshaft, 241 oil supply channel, 250 frame, 251 recess. DETAILED DESCRIPTION

[0068] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0069] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0070] Refer to the following Figures 1 to 7 The static scroll 100, the compressor 200 and the refrigeration equipment provided according to some embodiments of the present invention are described.

[0071] In one embodiment according to the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, a static scroll 100 is proposed, and the static scroll 100 is used for a compressor 200. The compressor 200 includes a movable scroll 210, and the movable scroll 210 is provided with an oil outlet hole 211. The static scroll 100 includes: a disk body 110, and the disk body 110 is provided with a thrust surface 111, and the thrust surface 111 is in contact with the movable scroll 210; a static vortex tooth 120, which is provided on the disk body 110, and along the radial direction of the disk body 110, the static vortex tooth 120 is located on the inner side of the thrust surface 111; an oil groove 130, which is provided on the thrust surface 111, and the oil groove 130 is intermittently connected to the oil outlet hole 211; at least one groove 140, which is provided on the thrust surface 111, and along the radial direction of the disk body 110, at least one groove 140 is located on the outer side of the oil groove 130, and at least one groove 140 is intermittently connected to the oil outlet hole 211.

[0072] The static scroll 100 provided in the embodiment of the present invention includes a disk body 110, a static scroll 120, an oil groove 130 and at least one groove 140. Specifically, the static scroll 120 is provided on the disk body 110. It can be understood that the movable scroll 210 includes a movable scroll, which is engaged with the static scroll 120 so that the movable scroll 210 and the static scroll 100 enclose a compression chamber 220. Optionally, the disk body 110 is further provided with an exhaust port, which is connected to the compression chamber 220. Specifically, when the compressor 200 is running, the movable scroll 210 performs a translational orbit relative to the static scroll 100 to compress the gas in the compression chamber 220. When the exhaust pressure is reached, the compressed high-temperature and high-pressure gas is discharged from the exhaust port.

[0073] The orbiting scroll 210 is provided with an oil outlet 211. Optionally, the compressor 200 further includes a crankshaft 240 and an oil sump. The crankshaft 240 is connected to the orbiting scroll 210, and an oil supply passage 241 is provided in the crankshaft 240. One end of the oil supply passage 241 is connected to the oil sump, and the other end is connected to the oil outlet 211. Specifically, when the compressor 200 is operating, the lubricating oil in the oil sump enters the oil outlet 211 through the oil supply passage 241. Since the oil groove 130 is intermittently connected to the oil outlet 211, the lubricating oil flowing out of the oil outlet 211 can enter the oil groove 130 to lubricate the contact surface between the orbiting scroll 210 and the fixed scroll 100.

[0074] At least one groove 140 is provided on the thrust surface 111, and at least one groove 140 is located radially outside the oil groove 130. That is to say, in addition to the oil groove 130, at least one groove 140 is added on the thrust surface 111 of the fixed scroll 100, thereby effectively reducing the contact area between the movable scroll 210 and the fixed scroll 100, significantly improving the wear of the contact surface between the movable scroll 210 and the fixed scroll 100, and extending the service life of the compressor 200.

[0075] At least one groove 140 is intermittently connected to the oil outlet hole 211. That is, when the compressor 200 is operating, the lubricating oil flowing out of the oil outlet hole 211 can enter not only the oil groove 130 but also the at least one groove 140. Because the at least one groove 140 is located radially outward of the oil groove 130, the thrust surface 111 is divided into at least three areas, and lubricating oil can flow into both the oil groove 130 and the at least one groove 140, thereby achieving zoned lubrication, increasing the lubrication area of the thrust surface 111, and improving lubrication efficiency. This can also meet the lubrication needs of the thrust surface 111 for compressors 200 with large displacement and high speed, further reducing wear on the contact surface between the orbiting scroll 210 and the fixed scroll 100, and improving the reliability of the compressor 200.

[0076] It is understandable that if Figure 2 As shown, the oil outlet 211 is connected to the oil groove 130. Figure 3 As shown, the oil outlet hole 211 is communicated with the groove 140 .

[0077] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, optionally, at least one groove 140 is provided with a first connecting portion 141 , the first connecting portion 141 extends toward the side where the oil groove 130 is located, and the first connecting portion 141 is intermittently connected to the oil outlet hole 211 .

[0078] In this embodiment, at least one groove 140 is defined as being provided with a first connecting portion 141. Specifically, the first connecting portion 141 extends toward the side where the oil groove 130 is located. Since at least one groove 140 is located radially outside the oil groove 130, that is, the first connecting portion 141 extends inward, that is, the first connecting portion 141 is arranged close to the oil groove 130.

[0079] Since the oil groove 130 is intermittently connected to the oil outlet hole 211, the first connecting part 141 is placed close to the oil groove 130. During the process of the movable scroll 210 moving in translation relative to the fixed scroll 100, the first connecting part 141 can be located within the movable range of the oil outlet hole 211, so that the groove 140 is intermittently connected to the oil outlet hole 211 through the first connecting part 141, thereby facilitating the introduction of lubricating oil into the groove 140.

[0080] Since the first connecting portion 141 is intermittently connected to the oil outlet hole 211, that is, the lubricating oil flowing out of the oil outlet hole 211 enters the groove 140 through the first connecting portion 141, thereby realizing zoned lubrication, increasing the lubrication area of the thrust surface 111, and improving the lubrication efficiency. For the compressor 200 with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface 111, which is conducive to further reducing the wear of the contact surface between the movable scroll 210 and the fixed scroll 100, and improving the reliability of the compressor 200.

[0081] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, optionally, the oil groove 130 is provided with a second communicating portion 131 , which is intermittently connected to the oil outlet hole 211 ; wherein the first communicating portion 141 is configured to be close to the second communicating portion 131 .

[0082] In this embodiment, the oil groove 130 is defined as being provided with a second connecting portion 131. Specifically, the second connecting portion 131 is intermittently connected to the oil outlet hole 211. That is, the lubricating oil flowing out of the oil outlet hole 211 enters the oil groove 130 through the second connecting portion 131 to lubricate the contact surface between the movable scroll 210 and the fixed scroll 100.

[0083] Since the second connecting portion 131 is intermittently connected to the oil outlet hole 211, the first connecting portion 141 is placed close to the second connecting portion 131. During the process of the movable scroll 210 moving in translation relative to the fixed scroll 100, the first connecting portion 141 can be located within the movable range of the oil outlet hole 211, which facilitates the intermittent connection between the groove 140 and the oil outlet hole 211 through the first connecting portion 141, thereby facilitating the introduction of lubricating oil into the groove 140.

[0084] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, optionally, along the radial direction of the disk body 110 , at least a portion of the first communicating portion 141 is opposite to the second communicating portion 131 .

[0085] In this embodiment, at least a portion of the first connecting portion 141 is defined to be opposite to the second connecting portion 131 along the radial direction of the disc body 110, that is, the first connecting portion 141 is close to the second connecting portion 131, so that during the translational movement of the movable scroll 210 relative to the fixed scroll 100, the first connecting portion 141 can be located within the movable range of the oil outlet hole 211, so that the groove 140 is intermittently connected with the oil outlet hole 211 through the first connecting portion 141, thereby facilitating the introduction of lubricating oil into the groove 140.

[0086] In some embodiments, optionally, the flow area of the second communication portion 131 is greater than the flow area of the first communication portion 141 .

[0087] In this embodiment, the flow area of the second communication portion 131 is defined to be greater than the flow area of the first communication portion 141 , that is, the flow area of the second communication portion 131 is larger, and the flow area of the first communication portion 141 is smaller.

[0088] Since the oil groove 130 is intermittently connected to the oil outlet hole 211 through the second connecting part 131, the flow area of the second connecting part 131 is set to be larger, which facilitates the lubricating oil to quickly fill the oil groove 130 and achieve lubrication of the thrust surface 111, which is beneficial to further reduce the wear of the contact surface between the movable scroll 210 and the fixed scroll 100, and improve the reliability of the compressor 200.

[0089] Optionally, at least one groove 140 communicates with the back-pressure chamber, allowing the lubricating oil in the oil groove 130 to flow radially outward under the action of a pressure differential, achieving zoned lubrication while increasing the lubrication area. Because the groove 140 is intermittently connected to the oil outlet 211 via the first connecting portion 141, the flow area of the first connecting portion 141 is set to be relatively small. This ensures that the lubricating oil is introduced into the groove 140 while preventing excessive lubricating oil from flowing into the back-pressure chamber.

[0090] like Figure 1 、 Figure 5 and Figure 6 As shown, in some embodiments, optionally, the number of the grooves 140 is at least two, and the at least two grooves 140 are arranged at intervals along the radial direction of the disk body 110; wherein, the groove 140 close to the oil groove 130 among the at least two grooves 140 is intermittently connected to the oil outlet 211.

[0091] In this embodiment, the number of grooves 140 is limited to at least two. Specifically, at least two grooves 140 are arranged at intervals along the radial direction of the disk body 110. That is, in addition to the oil groove 130, at least two grooves 140 are added to the thrust surface 111 of the fixed scroll 100, thereby further reducing the contact area between the movable scroll 210 and the fixed scroll 100 and dividing the thrust surface 111 into at least four areas.

[0092] Since the grooves 140 close to the oil groove 130 are intermittently connected to the oil outlet 211 in at least two grooves 140 compared to the other grooves 140, regional lubrication is achieved, the lubrication area of the thrust surface 111 is increased, and the lubrication efficiency is improved. For the compressor 200 with large displacement and high speed, the lubrication requirements of the thrust surface 111 can also be met, and the wear of the contact surface between the movable scroll 210 and the fixed scroll 100 can be significantly improved, the service life of the compressor 200 is extended, and the reliability of the compressor 200 is improved.

[0093] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, optionally, at least one groove 140 is an annular groove; and / or at least one groove 140 includes a first end 144 and a second end 145 facing each other, and there is a distance between the first end 144 and the second end 145 along the circumference of the disk body 110.

[0094] In this embodiment, the at least one groove 140 is an annular groove, that is, the at least one groove 140 is closed and connected.

[0095] The at least one groove 140 includes a first end 144 and a second end 145 that are opposite to each other. Specifically, the first end 144 and the second end 145 are spaced apart in the circumferential direction of the disk body 110 . That is, the at least one groove 140 is in a non-closed communication.

[0096] Specifically, at least one groove 140 is in a closed communication. Alternatively, at least one groove 140 is in a non-closed communication. Alternatively, there are at least two grooves 140, at least one of which is in a closed communication and at least one of which is in a non-closed communication. The specific configuration can be determined based on actual needs.

[0097] Since at least one groove 140 is an annular groove, that is, groove bodies are opened in the circumferential direction of the thrust surface 111, the contact area between the thrust surface 111 and the movable scroll 210 can be further reduced while increasing the lubrication area of the thrust surface 111 and improving the lubrication effect.

[0098] like Figure 5 As shown, in some embodiments, optionally, based on at least one groove 140 including a first end 144 and a second end 145 facing each other, there is a distance between the first end 144 and the second end 145 along the circumference of the disk body 110, and the angle α formed by the line connecting the first end 144 and the second end 145 and the center of the disk body 110 satisfies α≥180°.

[0099] In this embodiment, when the groove 140 is a non-closed connection, the angle between the line connecting the first end 144 of the groove 140 and the center of the disk body 110 and the angle between the second end 145 of the groove 140 and the center of the disk body 110 is greater than or equal to 180°. That is, when the groove 140 is a non-closed connection, the circumferential length of the groove 140 is set to be longer, so as to ensure the lubrication area of the thrust surface 111 in the circumferential direction, which is conducive to ensuring the lubrication effect.

[0100] like Figure 6As shown, in some embodiments, optionally, based on at least one groove 140 including a first end 144 and a second end 145 facing each other, there is a spacing between the first end 144 and the second end 145 along the circumference of the disk body 110, and when the number of grooves 140 is at least two, at least two grooves 140 are distributed along the circumference of the disk body 110.

[0101] In this embodiment, when the groove 140 is non-closed and connected, and the number of the grooves 140 is at least two, at least two grooves 140 are distributed along the circumference of the disk body 110, thereby ensuring the lubrication area of the thrust surface 111 in the circumferential direction, which is conducive to ensuring the lubrication effect.

[0102] In some embodiments, optionally, the compressor 200 further includes a back pressure chamber 230 , and at least one groove 140 is connected to the back pressure chamber 230 .

[0103] In this embodiment, the compressor 200 is defined as further comprising a back-pressure chamber 230. It will be appreciated that the back-pressure chamber 230 is in communication with the compression chamber 220. During operation of the compressor 200, the communication between the compression chamber 220 and the back-pressure chamber 230 introduces a medium pressure into the back-pressure chamber 230. Optionally, a portion of the back-pressure chamber 230 is located on a side of the orbiting scroll 210 facing away from the fixed scroll 100. This provides an axial force to the orbiting scroll 210 during operation of the compressor 200, thereby tightly meshing the orbiting scroll 210 and the fixed scroll 100, thereby preventing leakage and improving the efficiency of the compressor 200.

[0104] At least one groove 140 is connected to the back pressure chamber 230, that is, the pressure in the oil groove 130 is greater than the pressure in at least one groove 140, so that under the action of the pressure difference, the lubricating oil in the oil groove 130 can flow radially outward, realizing zoned lubrication while increasing the lubrication area, improving lubrication efficiency, significantly reducing the wear of the contact surface between the movable scroll 210 and the fixed scroll 100, improving the reliability of the compressor 200, and for the compressor 200 with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface 111.

[0105] like Figure 1 and Figure 5 As shown, in some embodiments, optionally, the number of grooves 140 is at least two, and the at least two grooves 140 include a first groove 142 and a second groove 143. Along the radial direction of the disk body 110, the first groove 142 is located between the oil groove 130 and the second groove 143, and the first groove 142 and the second groove 143 are respectively connected to the back pressure chamber 230; wherein, the connection area between the second groove 143 and the back pressure chamber 230 is greater than the connection area between the first groove 142 and the back pressure chamber 230.

[0106] In this embodiment, at least two grooves 140 are defined, including a first groove 142 and a second groove 143. Specifically, along the radial direction of the disk body 110, the first groove 142 is located between the oil groove 130 and the second groove 143. That is, along the radial direction of the disk body 110, the oil groove 130, the first groove 142 and the second groove 143 are arranged in sequence from the inside to the outside.

[0107] Since both the first groove 142 and the second groove 143 are connected to the back-pressure chamber 230, and the connection area of the first groove 142 is smaller than the connection area of the second groove 143, the area of the first groove 142 exposed in the back-pressure chamber 230 may be smaller than the area of the second groove 143 exposed in the back-pressure chamber 230. For example, only a portion of the first groove 142 is exposed in the back-pressure chamber 230, while the entire second groove 143 is exposed in the back-pressure chamber 230. This allows the pressure in the first groove 142 to be greater than the pressure in the second groove 143. As a result, the pressure differential allows the lubricating oil to flow radially outward, achieving zoned lubrication. This also helps to further increase the lubrication area, improve lubrication efficiency, significantly reduce wear on the contact surface between the orbiting scroll 210 and the fixed scroll 100, and enhance the reliability of the compressor 200. Furthermore, for compressors 200 with large displacement and high speed, the lubrication requirements of the thrust surface 111 can also be met.

[0108] According to a second aspect of the present invention, a compressor 200 is provided, comprising a stationary scroll 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the stationary scroll 100, which will not be described in detail herein.

[0109] like Figure 7 As shown, further, the compressor 200 also includes a movable scroll 210 and a back pressure chamber 230, wherein the movable scroll 210 and the fixed scroll 100 enclose a compression chamber 220, the movable scroll 210 is provided with an oil outlet hole 211, the oil groove 130 and at least one groove 140 are intermittently connected to the oil outlet hole 211 respectively, the back pressure chamber 230 is connected to the compression chamber 220, and is partially located on the side of the movable scroll 210 away from the fixed scroll 100.

[0110] The compressor 200 provided by the embodiment of the present invention includes a fixed scroll 100, a movable scroll 210 and a back pressure chamber 230. Specifically, the fixed scroll 120 is provided on the disk body 110. It can be understood that the movable scroll 210 includes a movable scroll, and the movable scroll is engaged with the static scroll 120 so that the movable scroll 210 and the fixed scroll 100 enclose a compression chamber 220. Optionally, the disk body 110 is further provided with an exhaust port, which is connected to the compression chamber 220. Specifically, when the compressor 200 is running, the movable scroll 210 performs a translational orbit relative to the fixed scroll 100 to compress the gas in the compression chamber 220. When the exhaust pressure is reached, the compressed high-temperature and high-pressure gas is discharged from the exhaust port.

[0111] The orbiting scroll 210 is provided with an oil outlet 211. Optionally, the compressor 200 further includes a crankshaft 240 and an oil sump. The crankshaft 240 is connected to the orbiting scroll 210, and an oil supply passage 241 is provided in the crankshaft 240. One end of the oil supply passage 241 is connected to the oil sump, and the other end is connected to the oil outlet 211. Specifically, when the compressor 200 is operating, the lubricating oil in the oil sump enters the oil outlet 211 through the oil supply passage 241. Since the oil groove 130 is intermittently connected to the oil outlet 211, the lubricating oil flowing out of the oil outlet 211 can enter the oil groove 130 to lubricate the contact surface between the orbiting scroll 210 and the fixed scroll 100.

[0112] At least one groove 140 is provided on the thrust surface 111, and at least one groove 140 is located radially outside the oil groove 130. That is to say, in addition to the oil groove 130, at least one groove 140 is added on the thrust surface 111 of the fixed scroll 100, thereby effectively reducing the contact area between the movable scroll 210 and the fixed scroll 100, significantly improving the wear of the contact surface between the movable scroll 210 and the fixed scroll 100, and extending the service life of the compressor 200.

[0113] At least one groove 140 is intermittently connected to the oil outlet hole 211. That is, when the compressor 200 is operating, the lubricating oil flowing out of the oil outlet hole 211 can enter not only the oil groove 130 but also the at least one groove 140. Because the at least one groove 140 is located radially outward of the oil groove 130, the thrust surface 111 is divided into at least three areas, and lubricating oil can flow into both the oil groove 130 and the at least one groove 140, thereby achieving zoned lubrication, increasing the lubrication area of the thrust surface 111, and improving lubrication efficiency. This can also meet the lubrication needs of the thrust surface 111 for compressors 200 with large displacement and high speed, further reducing wear on the contact surface between the orbiting scroll 210 and the fixed scroll 100, and improving the reliability of the compressor 200.

[0114] Furthermore, during operation of the compressor 200, the compression chamber 220 communicates with the back-pressure chamber 230, thereby introducing a medium pressure into the back-pressure chamber 230. Furthermore, a portion of the back-pressure chamber 230 is located on the side of the orbiting scroll 210 facing away from the fixed scroll 100. This provides an axial force to the orbiting scroll 210 during operation of the compressor 200, ensuring tight engagement between the orbiting scroll 210 and the fixed scroll 100, thereby preventing leakage and improving the efficiency of the compressor 200.

[0115] like Figure 7As shown, in some embodiments, the compressor 200 optionally further includes a crankshaft 240, which is connected to the orbiting scroll 210. The crankshaft 240 is provided with an oil supply passage 241. One end of the oil outlet hole 211 is connected to the oil supply passage 241, and the oil groove 130 and the at least one groove 140 are intermittently connected to the other end of the oil outlet hole 211. Optionally, the compressor 200 further includes a motor, which is connected to the crankshaft 240. Specifically, driven by the motor, the crankshaft 240 drives the orbiting scroll 210 to perform translational orbiting relative to the fixed scroll 100 to compress the gas in the compression chamber 220.

[0116] In addition, the lubricating oil flowing out of the oil outlet 211 can not only enter the oil groove 130, but also enter at least one groove 140, thereby realizing zoned lubrication, increasing the lubrication area of the thrust surface 111, and improving the lubrication efficiency. For the compressor 200 with large displacement and high speed, it can also meet the lubrication needs of the thrust surface 111.

[0117] like Figure 7 As shown, in some embodiments, the compressor 200 optionally further includes a frame 250, which is disposed on a side of the orbiting scroll 210 facing away from the fixed scroll 100 and is used to support the orbiting scroll 210. The frame 250 is provided with a recess 251. The inner wall of the recess 251, the orbiting scroll 210, and a portion of the thrust surface 111 enclose a back pressure chamber 230. Since the frame 250 is disposed on a side of the orbiting scroll 210 facing away from the fixed scroll 100, it is used to support the orbiting scroll 210.

[0118] Specifically, the inner wall of recess 251, orbiting scroll 210, and a portion of thrust surface 111 enclose a back-pressure chamber 230. During operation of compressor 200, the compression chamber 220 communicates with the back-pressure chamber 230, thereby introducing a medium pressure into the back-pressure chamber 230. Furthermore, a portion of the back-pressure chamber 230 is located on the side of the orbiting scroll 210 facing away from the fixed scroll 100. This provides an axial force on the orbiting scroll 210 during operation of compressor 200, ensuring tight engagement between the orbiting scroll 210 and the fixed scroll 100, thereby preventing leakage and improving the efficiency of compressor 200.

[0119] According to the third aspect of the present invention, a refrigeration device is provided, including a static scroll 100 or a compressor 200 as provided in any of the above embodiments, thereby having all the beneficial technical effects of the static scroll 100 or the compressor 200, which will not be repeated here.

[0120] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0121] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0122] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A static vortex, characterized in that: The fixed scroll is used for a compressor, the compressor includes a movable scroll, the movable scroll is provided with an oil outlet, and the fixed scroll includes: a disk body, wherein the disk body is provided with a thrust surface, and the thrust surface is in contact with the movable scroll; a static volute, provided on the disc body, and located on the inner side of the thrust surface along the radial direction of the disc body; an oil groove, provided on the thrust surface, the oil groove being intermittently connected to the oil outlet hole; At least one groove is provided on the thrust surface, and along the radial direction of the disc body, at least one groove is located outside the oil groove, and at least one groove is intermittently connected to the oil outlet hole.

2. The static scroll according to claim 1, characterized in that: At least one of the grooves is provided with a first communicating portion, the first communicating portion extends toward the side where the oil groove is located, and the first communicating portion is intermittently communicated with the oil outlet hole.

3. The static scroll according to claim 2, characterized in that: The oil tank is provided with a second communicating portion, and the second communicating portion is intermittently connected to the oil outlet hole; Wherein, the first communicating portion is configured to be close to the second communicating portion.

4. The static scroll according to claim 3, characterized in that: Along the radial direction of the disk body, at least a portion of the first communicating portion is opposite to the second communicating portion.

5. The static scroll according to claim 3, characterized in that: A flow area of the second communication portion is greater than a flow area of the first communication portion.

6. The stationary scroll according to any one of claims 1 to 5, characterized in that: The number of the grooves is at least two, and the at least two grooves are spaced apart along the radial direction of the disc body; Among them, the groove close to the oil groove among at least two of the grooves is intermittently connected to the oil outlet hole.

7. The stationary scroll according to any one of claims 1 to 5, characterized in that: At least one of the grooves is an annular groove; and / or At least one of the grooves includes a first end and a second end that are opposite to each other, and a distance is provided between the first end and the second end along the circumference of the disc body.

8. The stationary scroll according to claim 7, characterized in that: Based on the fact that at least one of the grooves includes a first end and a second end facing each other, there is a distance between the first end and the second end along the circumference of the disk body, and the angle α formed by the line connecting the first end and the second end and the center of the disk body satisfies α≥180°.

9. The fixed scroll according to claim 7, characterized in that: Based on the fact that at least one of the grooves includes a first end and a second end facing each other, there is a distance between the first end and the second end along the circumference of the disk body, and when the number of the grooves is at least two, at least two of the grooves are distributed along the circumference of the disk body.

10. The stationary scroll according to any one of claims 1 to 5, characterized in that: The compressor further includes a back pressure chamber, and at least one of the grooves is connected to the back pressure chamber.

11. The fixed scroll according to claim 10, characterized in that: The number of the grooves is at least two, and the at least two grooves include a first groove and a second groove. Along the radial direction of the disc body, the first groove is located between the oil groove and the second groove, and the first groove and the second groove are respectively connected to the back pressure cavity; Wherein, the communication area between the second groove and the back pressure cavity is larger than the communication area between the first groove and the back pressure cavity.

12. A compressor, characterized in that: include: The static scroll according to any one of claims 1 to 11; an orbiting scroll, enclosing a compression chamber with the fixed scroll, the orbiting scroll being provided with an oil outlet hole, the oil groove and at least one of the grooves being intermittently connected to the oil outlet hole respectively; A back pressure chamber is communicated with the compression chamber and is partially located on a side of the movable scroll away from the fixed scroll.

13. A refrigeration device, characterized in that: include: The static scroll according to any one of claims 1 to 11; or The compressor of claim 12.

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