Static scroll plate, compressor and refrigeration equipment

Abstract

The invention provides a static vortex disc, a compressor and refrigeration equipment, the static vortex disc is used for the compressor, the compressor comprises a dynamic vortex disc, the dynamic vortex disc is provided with an oil outlet hole, the static vortex disc comprises a disc body, the disc body is provided with a thrust surface, and the thrust surface is in contact with the dynamic vortex disc; 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] This invention relates to the field of compressor technology, and more specifically, to a static scroll plate, a compressor, and a refrigeration device. Background Technology

[0002] The compression mechanism of a scroll compressor generally includes a moving scroll and a stationary scroll that mesh with each other, forming a series of compression chambers between them. When the drive shaft of the drive mechanism rotates, it can drive the moving scroll via the crank pin of the drive shaft, causing the moving scroll to perform translational rotation relative to the stationary scroll.

[0003] Currently, in scroll compressors, an annular oil groove is typically set on the surface of the stationary scroll, and this annular oil groove is intermittently connected to the oil outlet of the moving scroll to supply oil to the thrust surfaces of the moving and stationary scrolls. 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 stationary scrolls, resulting in significant wear between the thrust surfaces of the moving and stationary scrolls and affecting the reliability of compressor operation. Summary of the Invention

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

[0005] Therefore, a first aspect of the embodiments of the present invention provides a static vortex disk.

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

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

[0008] In view of the above, according to a first aspect of the present invention, a stationary scroll is provided for use in a compressor. The compressor includes a moving scroll with an oil outlet. The stationary scroll includes: a plate body with a thrust surface in contact with the moving scroll; stationary scroll teeth disposed on the plate body along the radial direction of the plate body, located inside the thrust surface; an oil groove disposed on the thrust surface, intermittently communicating with the oil outlet; and at least one groove disposed on the thrust surface along the radial direction of the plate body, located outside the oil groove, intermittently communicating with the oil outlet.

[0009] The stationary scroll plate provided in this embodiment of the invention includes a plate body, stationary scroll teeth, an oil groove, and at least one recess. Specifically, the stationary scroll teeth are disposed on the plate body. It can be understood that the moving scroll plate includes moving scroll teeth, which mesh with the stationary scroll teeth to form a compression chamber by the moving and stationary scroll plates. Optionally, the plate body also has an exhaust port, which communicates with the compression chamber. Specifically, when the compressor is running, the moving scroll plate performs translational rotation relative to the stationary scroll plate to compress the gas in the compression chamber. When the exhaust pressure is reached, the compressed high-temperature, high-pressure gas is discharged from the exhaust port.

[0010] The moving scroll is provided with an oil outlet. Optionally, the compressor also includes a crankshaft and an oil sump. The crankshaft is connected to the moving scroll, and an oil supply channel is provided inside the crankshaft. One end of the oil supply channel is connected to the oil sump, and the other end is connected to the oil outlet. Specifically, when the compressor is running, the lubricating oil in the oil sump enters the oil outlet through the oil supply channel. Since the oil sump and the oil outlet are intermittently connected, that is, the lubricating oil flowing out of the oil outlet can enter the oil sump to lubricate the contact surface between the moving scroll and the stationary scroll.

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

[0012] At least one groove is intermittently connected to the oil outlet, meaning that when the compressor is running, the lubricating oil flowing from the oil outlet can enter not only the oil sump but also at least one groove. Since at least one groove is located radially outside the oil sump, it divides the thrust surface into at least three regions, and lubricating oil can flow into both the oil sump and at least one groove, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface, and improving lubrication efficiency. For compressors with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface, which is beneficial for further reducing the wear of the contact surfaces of the moving and stationary scrolls and improving the reliability of the compressor.

[0013] In addition, the static vortex disk provided by the above-described technical solution of the present invention also has the following additional technical features:

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

[0015] In this technical solution, at least one groove is provided with a first connecting portion. Specifically, the first connecting portion extends toward the side where the oil tank is located. Since at least one groove is located on the radial outer side of the oil tank, that is, the first connecting portion extends inward, i.e., the first connecting portion is located close to the oil tank.

[0016] Since the oil groove and the oil outlet are intermittently connected, by bringing the first connecting part close to the oil groove, during the translational rotation of the moving volute relative to the stationary volute, the first connecting part can be located within the range of motion of the oil outlet, which facilitates the intermittent connection between the groove and the oil outlet through the first connecting part, thereby facilitating the introduction of lubricating oil into the groove.

[0017] Since the first connecting part is intermittently connected to the oil outlet, the lubricating oil flowing out of the oil outlet enters the groove through the first connecting part, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface, and improving lubrication efficiency. For compressors with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface, which is conducive to further reducing the wear of the contact surface between the moving scroll and the stationary scroll, and improving the reliability of the compressor.

[0018] In some technical solutions, the oil tank may optionally have 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, the oil tank is provided with a second connecting part. Specifically, the second connecting part is intermittently connected to the oil outlet hole. That is to say, the lubricating oil flowing out of the oil outlet hole enters the oil tank through the second connecting part to lubricate the contact surface between the moving scroll and the stationary scroll.

[0020] Since the second connecting part is intermittently connected to the oil outlet, by bringing the first connecting part close to the second connecting part, during the translational rotation of the moving volute relative to the stationary volute, the first connecting part can be located within the range of motion of the oil outlet, which facilitates the intermittent connection between the groove and the oil outlet through the first connecting part, thereby facilitating the introduction of lubricating oil into the groove.

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

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

[0023] In some technical solutions, the flow area of ​​the second connecting part may be larger than the flow area of ​​the first connecting part.

[0024] In this technical solution, the flow area of ​​the second connecting part is limited to be greater than that of the first connecting part. In other words, the flow area of ​​the second connecting part is larger, and the flow area of ​​the first connecting part is smaller.

[0025] Because the oil groove is intermittently connected to the oil outlet through the second connecting part, the flow area of ​​the second connecting part is set to be relatively large, which facilitates the rapid filling of the oil groove with lubricating oil, realizes the lubrication of the thrust surface, and helps to further reduce the wear of the contact surface between the moving scroll and the stationary scroll, thereby improving the reliability of the compressor.

[0026] Optionally, at least one groove connects to the back pressure chamber, allowing the lubricating oil in the oil groove to flow radially outward under the action of pressure difference, achieving zoned lubrication while increasing the lubrication area. Since the groove is intermittently connected to the oil outlet through the first connecting part, the flow area of ​​the first connecting part is set to be small, so as to introduce lubricating oil into the groove while avoiding excessive lubricating oil flowing into the back pressure chamber.

[0027] In some technical solutions, optionally, the number of grooves is at least two, and the at least two grooves are arranged at radial intervals along the disc body; wherein, the groove closest to the oil trough in 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 stationary volute, so as to further reduce the contact area between the moving volute and the stationary volute while dividing the thrust surface into at least four regions.

[0029] Because at least two of the grooves are intermittently connected to the oil outlet compared to the other grooves, regional lubrication is achieved, increasing the lubrication area of ​​the thrust surface and improving lubrication efficiency. For compressors with large displacement and high speed, the lubrication requirements of the thrust surface can also be met, significantly improving the wear of the contact surface between the moving scroll and the stationary scroll, 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 away from each other, with a gap between the first end and the second end along the circumference of the disc 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] At least one groove includes a first end and a second end facing away from each other. Specifically, the first end and the second end are spaced apart in the circumferential direction of the disc body, that is, at least one groove is non-closed and connected.

[0033] Specifically, at least one groove is closed and connected. Alternatively, at least one groove is not closed and connected. Alternatively, the number of grooves is at least two, wherein at least one groove is closed and connected, and at least one groove is not closed and connected. The specific configuration can be adjusted according to actual needs.

[0034] Since at least one groove is an annular groove, that is, grooves are opened in the circumferential direction of the thrust surface, the contact area between the thrust surface and the moving 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 away from each other, along the circumference of the disk body, there is a gap between the first end and the second end, and the angle α formed by the lines connecting the first end and the second end to the center of the disk body satisfies α≥180°.

[0036] In this technical solution, when the groove is not closed and connected, the angle between the line connecting the first end of the groove to the center of the disk and the line connecting the second end of the groove to the center of the disk is greater than or equal to 180°. That is to say, when the groove is a non-closed and connected groove, the circumferential length of the groove is set to be relatively long, so as to ensure the lubrication area of ​​the thrust surface in the circumferential direction, which is beneficial 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 away from each other, along the circumference of the disk body, with a gap between the first end and the second end, and when the number of grooves is at least two, the at least two grooves are distributed along the circumference of the disk body.

[0038] In this technical solution, when the grooves are not closed and connected, and there are at least two grooves, the at least two grooves are distributed along the circumference of the disc, thereby ensuring the lubrication area of ​​the thrust surface in the circumferential direction, which is beneficial to ensuring the lubrication effect.

[0039] In some technical solutions, the compressor may optionally include a back pressure chamber, with at least one groove communicating with the back pressure chamber.

[0040] In this technical solution, the compressor is further defined as including a back pressure chamber. It is understood that the back pressure chamber is connected to the compression chamber. During compressor operation, due to the connection between the compression chamber and the back pressure chamber, intermediate pressure is introduced into the back pressure chamber. Optionally, a portion of the back pressure chamber is located on the side of the moving scroll away from the stationary scroll, thereby providing axial force to the moving scroll during compressor operation to ensure tight meshing between the moving and stationary scrolls, preventing leakage and improving compressor efficiency.

[0041] At least one groove connects to the back pressure chamber, meaning that the pressure in the oil groove is greater than the pressure in at least one groove. As a result, under the action of pressure difference, the lubricating oil in the oil groove can flow radially outward, achieving zoned lubrication while increasing the lubrication area, improving lubrication efficiency, significantly reducing the wear of the contact surfaces of the moving scroll and stationary scroll, and improving the reliability of the compressor. For compressors with large displacement and high speed, it can also meet the lubrication requirements 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 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 greater than the communication 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 disc body, the first groove is located between the oil groove and the second groove. That is, along the radial direction of the disc body, the oil groove, the first groove and the second groove are arranged alternately from the inside to the outside.

[0044] Since both the first and second grooves are connected to the back pressure chamber, and the connecting area of ​​the first groove is smaller than that 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 part of the first groove is exposed in the back pressure chamber, while the entire second groove is exposed. This makes the pressure in the first groove greater than the pressure in the second groove, allowing the lubricating oil to flow radially outward under the pressure difference. This achieves zoned lubrication while further increasing the lubrication area, improving lubrication efficiency, significantly reducing wear on the contact surfaces of the moving and stationary scrolls, and improving the reliability of the compressor. For compressors with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface.

[0045] According to a second aspect of the present invention, a compressor is provided, comprising a static scroll plate as provided by any of the above-described technical solutions, and thus possessing all the beneficial technical effects of the static scroll plate, which will not be elaborated further here.

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

[0047] The compressor provided in this embodiment of the invention includes a stationary scroll, a moving scroll, and a back pressure chamber. Specifically, the stationary scroll teeth are disposed on the scroll body. It is understood that the moving scroll includes moving scroll teeth, which mesh with the stationary scroll teeth to form a compression chamber by the moving scroll and the stationary scroll. Optionally, the scroll body also has an exhaust port, which communicates with the compression chamber. Specifically, when the compressor is running, the moving scroll rotates relative to the stationary scroll to compress the gas in the compression chamber. When the exhaust pressure is reached, the compressed high-temperature, high-pressure gas is discharged from the exhaust port.

[0048] The moving scroll is provided with an oil outlet. Optionally, the compressor also includes a crankshaft and an oil sump. The crankshaft is connected to the moving scroll, and an oil supply channel is provided inside the crankshaft. One end of the oil supply channel is connected to the oil sump, and the other end is connected to the oil outlet. Specifically, when the compressor is running, the lubricating oil in the oil sump enters the oil outlet through the oil supply channel. Since the oil sump and the oil outlet are intermittently connected, that is, the lubricating oil flowing out of the oil outlet can enter the oil sump to lubricate the contact surface between the moving scroll and the stationary scroll.

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

[0050] At least one groove is intermittently connected to the oil outlet, meaning that when the compressor is running, the lubricating oil flowing from the oil outlet can enter not only the oil sump but also at least one groove. Since at least one groove is located radially outside the oil sump, it divides the thrust surface into at least three regions, and lubricating oil can flow into both the oil sump and at least one groove, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface, and improving lubrication efficiency. For compressors with large displacement and high speed, it can also meet the lubrication requirements of the thrust surface, which is beneficial for further reducing the wear of the contact surfaces of the moving and stationary scrolls and improving the reliability of the compressor.

[0051] Furthermore, during compressor operation, the compression chamber is connected to the back pressure chamber, thus introducing intermediate pressure into the back pressure chamber. A portion of the back pressure chamber is located on the side of the moving scroll away from the stationary scroll, thereby providing axial force to the moving scroll during compressor operation. This ensures tight meshing between the moving and stationary scrolls, preventing leakage and improving compressor efficiency.

[0052] Optionally, the compressor further includes a crankshaft connected to a moving scroll. The crankshaft has an oil supply channel, one end of which is connected to the oil supply channel, and an oil groove and at least one recess are 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 moving scroll to rotate relative to the stationary scroll to compress the gas in the compression chamber.

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

[0054] Optionally, the compressor also includes a frame located on the side of the moving scroll away from the stationary scroll, for supporting the moving scroll. The frame has a recess, the inner wall of which, the moving scroll, and a portion of the thrust surface enclose a back pressure chamber. Because the frame is located on the side of the moving scroll away from the stationary scroll, it is used to support the moving scroll.

[0055] The inner wall of the recess, the moving scroll, and part of the thrust surface enclose a back pressure chamber. During compressor operation, because the compression chamber and the back pressure chamber are connected, intermediate pressure is introduced into the back pressure chamber. Furthermore, a portion of the back pressure chamber is located on the side of the moving scroll away from the stationary scroll, thus providing axial force to the moving scroll during compressor operation. This ensures tight meshing between the moving and stationary scrolls, preventing leakage and improving compressor efficiency.

[0056] According to a third aspect of the present invention, a refrigeration device is provided, comprising a scroll plate or compressor as provided in any of the above-described technical solutions, and thus possessing all the beneficial technical effects of the scroll plate or compressor, which will not be elaborated further here.

[0057] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[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 taken in conjunction with the following drawings, in which:

[0059] Figure 1 One of the structural schematic diagrams of a static vortex disk according to an embodiment of the present invention is shown;

[0060] Figure 2 One of the schematic diagrams of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0061] Figure 3 A second schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0062] Figure 4 A second schematic diagram of the structure of a static vortex disk according to an embodiment of the present invention is shown;

[0063] Figure 5 A third schematic diagram of the structure of a static vortex disk according to an embodiment of the present invention is shown;

[0064] Figure 6 The fourth schematic diagram of the structure of a static vortex disk according to an embodiment of the present invention is shown;

[0065] Figure 7 The third schematic diagram shows a partial structure of a compressor according to an embodiment of the present invention.

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

[0067] 100 stationary scroll, 110 scroll body, 111 thrust surface, 120 stationary scroll teeth, 130 oil groove, 131 second connecting part, 140 groove, 141 first connecting part, 142 first groove, 143 second groove, 144 first end, 145 second end, 200 compressor, 210 moving scroll, 211 oil outlet, 220 compression chamber, 230 back pressure chamber, 240 crankshaft, 241 oil supply channel, 250 frame, 251 recess. Detailed Implementation

[0068] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0069] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0070] The following reference Figures 1 to 7 This describes a static scroll 100, a compressor 200, and a refrigeration device provided according to some embodiments of the present invention.

[0071] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a stationary scroll 100 is proposed for use in a compressor 200. The compressor 200 includes a moving scroll 210, which has an oil outlet 211. The stationary scroll 100 includes: a scroll body 110, which has a thrust surface 111 in contact with the moving scroll 210; stationary scroll teeth 120, which are located on the scroll body 110 along the radial direction of the scroll body 110 and are located inside the thrust surface 111; an oil groove 130, which is located on the thrust surface 111 and is intermittently connected to the oil outlet 211; and at least one groove 140, which is located on the thrust surface 111 along the radial direction of the scroll body 110 and is located outside the oil groove 130 and is intermittently connected to the oil outlet 211.

[0072] The stationary scroll 100 provided in this embodiment of the invention includes a scroll body 110, stationary scroll teeth 120, an oil groove 130, and at least one groove 140. Specifically, the stationary scroll teeth 120 are disposed on the scroll body 110. It is understood that the moving scroll 210 includes moving scroll teeth, which mesh with the stationary scroll teeth 120 to form a compression chamber 220 by the moving scroll 210 and the stationary scroll 100. Optionally, the scroll body 110 also has an exhaust port, which communicates with the compression chamber 220. Specifically, when the compressor 200 is running, the moving scroll 210 performs translational rotation relative to the stationary scroll 100 to compress the gas in the compression chamber 220. When the exhaust pressure is reached, the compressed high-temperature, high-pressure gas is discharged from the exhaust port.

[0073] The moving scroll 210 is provided with an oil outlet 211. Optionally, the compressor 200 also includes a crankshaft 240 and an oil sump. The crankshaft 240 is connected to the moving scroll 210, and an oil supply channel 241 is provided inside the crankshaft 240. One end of the oil supply channel 241 is connected to the oil sump, and the other end is connected to the oil outlet 211. Specifically, when the compressor 200 is running, the lubricating oil in the oil sump enters the oil outlet 211 through the oil supply channel 241. Since the oil sump 130 is intermittently connected to the oil outlet 211, that is, the lubricating oil flowing out of the oil outlet 211 can enter the oil sump 130 to lubricate the contact surface between the moving scroll 210 and the stationary scroll 100.

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

[0075] At least one groove 140 is intermittently connected to the oil outlet 211. That is, when the compressor 200 is running, the lubricating oil flowing out of the oil outlet 211 can enter not only the oil groove 130 but also at least one groove 140. Since at least one groove 140 is located radially outside the oil groove 130, it divides the thrust surface 111 into at least three regions, and lubricating oil can flow into both the oil groove 130 and at least one groove 140, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface 111, and improving 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 moving scroll 210 and the stationary scroll 100 and improving the reliability of the compressor 200.

[0076] It is understandable that, such as Figure 2As shown, the oil outlet 211 is connected to the oil trough 130. Figure 3 As shown, the oil outlet 211 is connected to 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 211.

[0078] In this embodiment, at least one groove 140 is provided with a first connecting portion 141. Specifically, the first connecting portion 141 extends toward the side where the oil tank 130 is located. Since at least one groove 140 is located on the radially outer side of the oil tank 130, that is, the first connecting portion 141 extends inward, i.e., the first connecting portion 141 is located close to the oil tank 130.

[0079] Since the oil groove 130 is intermittently connected to the oil outlet 211, the first connecting part 141 is brought close to the oil groove 130. During the translational rotation of the moving volute 210 relative to the stationary volute 100, the first connecting part 141 can be located within the range of motion of the oil outlet 211. This facilitates the intermittent connection between the groove 140 and the oil outlet 211 through the first connecting part 141, thereby facilitating the introduction of lubricating oil into the groove 140.

[0080] Since the first connecting part 141 is intermittently connected to the oil outlet 211, that is, the lubricating oil flowing out of the oil outlet 211 enters the groove 140 through the first connecting part 141, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface 111, and improving 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 moving scroll 210 and the stationary 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 tank 130 is provided with a second connecting portion 131, which is intermittently connected to the oil outlet 211; wherein, the first connecting portion 141 is configured to be close to the second connecting portion 131.

[0082] In this embodiment, the oil tank 130 is provided with a second connecting part 131. Specifically, the second connecting part 131 is intermittently connected with the oil outlet 211. That is, the lubricating oil flowing out of the oil outlet 211 enters the oil tank 130 through the second connecting part 131 to lubricate the contact surface between the moving scroll 210 and the stationary scroll 100.

[0083] Since the second connecting part 131 is intermittently connected to the oil outlet 211, by bringing the first connecting part 141 close to the second connecting part 131, during the translational rotation of the moving scroll 210 relative to the stationary scroll 100, the first connecting part 141 can be located within the range of motion of the oil outlet 211, which facilitates the intermittent connection between the groove 140 and the oil outlet 211 through the first connecting part 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, at least a portion of the first connecting portion 141 is opposite to the second connecting portion 131 along the radial direction of the disk body 110.

[0085] In this embodiment, at least a portion of the first connecting portion 141 is defined to be radially opposite to the second connecting portion 131 along the disk body 110. That is, the first connecting portion 141 is close to the second connecting portion 131. During the translational rotation of the moving volute 210 relative to the stationary volute 100, the first connecting portion 141 can be located within the range of motion of the oil outlet 211, so that the groove 140 can be intermittently connected to the oil outlet 211 through the first connecting portion 141, thereby facilitating the introduction of lubricating oil into the groove 140.

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

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

[0088] Since the oil groove 130 is intermittently connected to the oil outlet 211 through the second connecting part 131, the flow area of ​​the second connecting part 131 is set to be large, which makes it easy for the lubricating oil to quickly fill the oil groove 130 and realize the lubrication of the thrust surface 111. This is beneficial to further reduce the wear of the contact surface between the moving scroll 210 and the stationary scroll 100 and improve the reliability of the compressor 200.

[0089] Optionally, at least one groove 140 is connected to the back pressure chamber, so that under the action of pressure difference, the lubricating oil in the oil groove 130 can flow radially outward, achieving zoned lubrication while increasing the lubrication area. Since the groove 140 is intermittently connected to the oil outlet 211 through the first connecting part 141, the flow area of ​​the first connecting part 141 is set to be small, so that lubricating oil is introduced into the groove 140 while avoiding excessive lubricating oil flowing into the back pressure chamber.

[0090] like Figure 1 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, the number of grooves 140 is at least two, and the at least two grooves 140 are arranged at radial intervals along the disc body 110; wherein, the groove 140 closest 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 stationary volute 100. This can further reduce the contact area between the moving volute 210 and the stationary volute 100 while dividing the thrust surface 111 into at least four regions.

[0092] Since the groove 140 closest to the oil groove 130 is intermittently connected to the oil outlet 211 compared to the other grooves 140, regional lubrication is achieved, increasing the lubrication area of ​​the thrust surface 111 and improving lubrication efficiency. For compressors 200 with large displacement and high speed, the lubrication requirements of the thrust surface 111 can also be met, significantly improving the wear of the contact surface between the moving scroll 210 and the stationary scroll 100, extending the service life of the compressor 200, and improving the reliability of the compressor 200.

[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 away from each other, with a gap between the first end 144 and the second end 145 along the circumference of the disc body 110.

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

[0095] At least one groove 140 includes a first end 144 and a second end 145 facing away from each other. Specifically, the first end 144 and the second end 145 are spaced apart in the circumferential direction of the disc body 110, that is, at least one groove 140 is non-closed and connected.

[0096] Specifically, at least one groove 140 is closed and connected. Alternatively, at least one groove 140 is not closed and connected. Alternatively, the number of grooves 140 is at least two, wherein at least one groove 140 is closed and connected, and at least one groove 140 is not closed and connected. The specific configuration can be adjusted according to actual needs.

[0097] Since at least one groove 140 is an annular groove, that is, grooves are opened in the circumferential direction of the thrust surface 111, the contact area between the thrust surface 111 and the moving scroll 210 can be further reduced while the lubrication area of ​​the thrust surface 111 is increased, thereby 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 away from each other, along the circumference of the disk body 110, there is a gap between the first end 144 and the second end 145, and the angle α formed by the lines connecting the first end 144 and the second end 145 to the center of the disk body 110 satisfies α≥180°.

[0099] In this embodiment, when the groove 140 is not closed and connected, the angle between the line connecting the first end 144 of the groove 140 and the center of the disk 110, and the line connecting the second end 145 of the groove 140 and the center of the disk 110 is greater than or equal to 180°. That is, when the groove 140 is a non-closed and connected groove, the circumferential length of the groove 140 is set to be relatively long, so as to ensure the lubrication area of ​​the thrust surface 111 in the circumferential direction, which is beneficial to ensuring the lubrication effect.

[0100] like Figure 6 As shown, in some embodiments, optionally, based on at least one groove 140 including a first end 144 and a second end 145 facing away from each other, along the circumference of the disk body 110, with a gap between the first end 144 and the second end 145, 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 not closed and connected, and the number of grooves 140 is at least two, the at least two grooves 140 are distributed circumferentially along the disc body 110, thereby ensuring the lubrication area of ​​the thrust surface 111 in the circumferential direction, which is beneficial to ensuring the lubrication effect.

[0102] In some embodiments, the compressor 200 may optionally include a back pressure chamber 230, with at least one recess 140 communicating with the back pressure chamber 230.

[0103] In this embodiment, the compressor 200 is further defined as including a back pressure chamber 230. It is understood that the back pressure chamber 230 is connected to the compression chamber 220. During the operation of the compressor 200, because the compression chamber 220 and the back pressure chamber 230 are connected, intermediate pressure is introduced into the back pressure chamber 230. Optionally, a portion of the back pressure chamber 230 is located on the side of the moving scroll 210 away from the stationary scroll 100, thereby providing axial force to the moving scroll 210 during the operation of the compressor 200, ensuring tight meshing between the moving scroll 210 and the stationary scroll 100, preventing leakage, and improving the efficiency of the compressor 200.

[0104] At least one groove 140 is connected to the back pressure chamber 230, meaning that the pressure in the oil groove 130 is greater than the pressure in at least one groove 140. As a result, under the action of the pressure difference, the lubricating oil in the oil groove 130 can flow radially outward, achieving zoned lubrication while increasing the lubrication area, improving lubrication efficiency, significantly reducing the wear of the contact surface between the moving scroll 210 and the stationary scroll 100, and improving the reliability of the compressor 200. For compressors 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 disc 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 cavity 230; wherein, the communication area between the second groove 143 and the back pressure cavity 230 is greater than the communication area between the first groove 142 and the back pressure cavity 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 disc 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 disc body 110, the oil groove 130, the first groove 142 and the second groove 143 are arranged alternately 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 connecting area of ​​the first groove 142 is smaller than that 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 part of the first groove 142 may be exposed in the back pressure chamber 230, while the second groove 143 may be fully exposed. This results in a pressure greater in the first groove 142 than in the second groove 143, allowing the lubricating oil to flow radially outward under the pressure difference. This achieves zoned lubrication while further increasing the lubrication area, improving lubrication efficiency, significantly reducing wear on the contact surfaces of the moving scroll 210 and the stationary scroll 100, and improving the reliability of the compressor 200. For compressors 200 with large displacement and high speed, this also meets the lubrication requirements of the thrust surface 111.

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

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

[0110] The compressor 200 provided in this embodiment of the invention includes a stationary scroll 100, a moving scroll 210, and a back pressure chamber 230. Specifically, the stationary scroll teeth 120 are disposed on the disk body 110. It is understood that the moving scroll 210 includes moving scroll teeth, which mesh with the stationary scroll teeth 120 to form a compression chamber 220 by the moving scroll 210 and the stationary scroll 100. Optionally, the disk body 110 also has an exhaust port, which communicates with the compression chamber 220. Specifically, when the compressor 200 is running, the moving scroll 210 performs translational rotation relative to the stationary scroll 100 to compress the gas in the compression chamber 220. When the exhaust pressure is reached, the compressed high-temperature, high-pressure gas is discharged from the exhaust port.

[0111] The moving scroll 210 is provided with an oil outlet 211. Optionally, the compressor 200 also includes a crankshaft 240 and an oil sump. The crankshaft 240 is connected to the moving scroll 210, and an oil supply channel 241 is provided inside the crankshaft 240. One end of the oil supply channel 241 is connected to the oil sump, and the other end is connected to the oil outlet 211. Specifically, when the compressor 200 is running, the lubricating oil in the oil sump enters the oil outlet 211 through the oil supply channel 241. Since the oil sump 130 is intermittently connected to the oil outlet 211, that is, the lubricating oil flowing out of the oil outlet 211 can enter the oil sump 130 to lubricate the contact surface between the moving scroll 210 and the stationary scroll 100.

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

[0113] At least one groove 140 is intermittently connected to the oil outlet 211. That is, when the compressor 200 is running, the lubricating oil flowing out of the oil outlet 211 can enter not only the oil groove 130 but also at least one groove 140. Since at least one groove 140 is located radially outside the oil groove 130, it divides the thrust surface 111 into at least three regions, and lubricating oil can flow into both the oil groove 130 and at least one groove 140, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface 111, and improving 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 moving scroll 210 and the stationary scroll 100 and improving the reliability of the compressor 200.

[0114] Furthermore, during the operation of the compressor 200, since the compression chamber 220 is connected to the back pressure chamber 230, intermediate pressure is introduced into the back pressure chamber 230. A portion of the back pressure chamber 230 is located on the side of the moving scroll 210 away from the stationary scroll 100, thus providing axial force to the moving scroll 210 during compressor 200 operation. This ensures tight meshing between the moving scroll 210 and the stationary scroll 100, preventing leakage and improving the efficiency of the compressor 200.

[0115] like Figure 7As shown, in some embodiments, the compressor 200 may optionally include a crankshaft 240 connected to a moving scroll 210. The crankshaft 240 is provided with an oil supply channel 241, one end of an oil outlet 211 communicating with the oil supply channel 241, and an oil groove 130 and at least one recess 140 intermittently communicating with the other end of the oil outlet 211. Optionally, the compressor 200 may also include a motor connected to the crankshaft 240. Specifically, driven by the motor, the crankshaft 240 drives the moving scroll 210 to perform translational rotation relative to the stationary 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 enter not only the oil sump 130, but also at least one groove 140, thereby achieving zoned lubrication, increasing the lubrication area of ​​the thrust surface 111, and improving lubrication efficiency. For compressors 200 with large displacement and high speed, the lubrication requirements of the thrust surface 111 can also be met.

[0117] like Figure 7 As shown, in some embodiments, the compressor 200 may optionally include a frame 250, which is disposed on the side of the moving scroll 210 away from the stationary scroll 100, for supporting the moving scroll 210. The frame 250 has a recess 251, the inner wall of the recess 251, the moving scroll 210, and a portion of the thrust surface 111 enclose a back pressure cavity 230. Since the frame 250 is disposed on the side of the moving scroll 210 away from the stationary scroll 100, it is used to support the moving scroll 210.

[0118] Specifically, the inner wall of the recess 251, the moving scroll 210, and part of the thrust surface 111 enclose a back pressure cavity 230. During the operation of the compressor 200, since the compression cavity 220 is connected to the back pressure cavity 230, intermediate pressure is introduced into the back pressure cavity 230. Furthermore, a portion of the back pressure cavity 230 is located on the side of the moving scroll 210 away from the stationary scroll 100, thereby providing axial force to the moving scroll 210 during the operation of the compressor 200, ensuring tight meshing between the moving scroll 210 and the stationary scroll 100, preventing leakage, and improving the efficiency of the compressor 200.

[0119] According to a third aspect of the present invention, a refrigeration device is provided, comprising a static scroll 100 or a compressor 200 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the static scroll 100 or the compressor 200, which will not be elaborated further here.

[0120] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0121] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 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. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A static scroll disk, characterized in that, The stationary scroll is used in a compressor, the compressor includes a moving scroll, the moving scroll is provided with an oil outlet, and the stationary scroll includes: The disc body is provided with a thrust surface, which contacts the moving volute. A stationary volute tooth is provided on the disc body along the radial direction of the disc body, and the stationary volute tooth is located inside the thrust surface; An oil groove is provided on the thrust surface, and the oil groove is intermittently connected to the oil outlet hole; At least one groove is provided on the thrust surface along the radial direction of the disc body, at least one of the grooves is located outside the oil groove, and at least one of the grooves is intermittently connected to the oil outlet.

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

3. The static scroll plate according to claim 2, characterized in that, The oil tank is provided with a second connecting part, which is intermittently connected to the oil outlet hole; The first connecting portion is configured to be close to the second connecting portion.

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

5. The static scroll plate according to claim 3, characterized in that, The flow area of ​​the second connecting part is greater than that of the first connecting part.

6. The stationary scroll plate according to any one of claims 1 to 5, characterized in that, The number of grooves is at least two, and the at least two grooves are arranged at radial intervals along the disk body; In this case, at least two of the grooves are intermittently connected to the oil outlet hole, with the groove closest to the oil trough being connected to the oil outlet hole.

7. The static scroll disk 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 facing away from each other, along the circumference of the disc body, with a gap between the first end and the second end.

8. The stationary vortex disk according to claim 7, characterized in that, Based on at least one of the grooves including a first end and a second end facing away from each other, along the circumference of the disk body, there is a gap between the first end and the second end, and the angle α formed by the lines connecting the first end and the second end to the center of the disk body satisfies α≥180°.

9. The static scroll plate according to claim 7, characterized in that, Based on at least one of the grooves including a first end and a second end facing away from each other, along the circumference of the disk body, with a gap between the first end and the second end, and when the number of grooves is at least two, at least two of the grooves are distributed along the circumference of the disk body.

10. The stationary scroll plate according to any one of claims 1 to 5, characterized in that, The compressor also includes a back pressure chamber, and at least one of the grooves communicates with the back pressure chamber.

11. The stationary vortex disk according to claim 10, characterized in that, 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 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 chamber. The area of ​​communication between the second groove and the back pressure cavity is greater than the area of ​​communication between the first groove and the back pressure cavity.

12. A compressor, characterized in that, include: Static vortex disk as described in any one of claims 1 to 11; A moving scroll plate, together with the stationary scroll plate, forms a compression cavity. The moving scroll plate is provided with an oil outlet hole. The oil groove and at least one of the grooves are intermittently connected to the oil outlet hole. The back pressure chamber is connected to the compression chamber and is partially located on the side of the moving scroll disk away from the stationary scroll disk.

13. A refrigeration device, characterized in that, include: Static vortex disk as described in any one of claims 1 to 11; or The compressor as described in claim 12.

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