Compressor and refrigeration equipment

Abstract

The utility model provides a compressor and refrigeration equipment. The compressor comprises a shell assembly, a stator assembly, a pump assembly and a plugging part, the stator assembly comprises a stator iron core, the stator iron core is arranged in the shell assembly, the stator iron core is provided with a plurality of oil return channels, and the plurality of oil return channels penetrate through the stator iron core in the axial direction of the compressor; the pump assembly comprises a pump body, the pump body is arranged in the shell assembly, a notch is formed in the pump body, the notch penetrates through the pump body in the axial direction of the compressor, and the notch is opposite to at least one oil return channel in the multiple oil return channels in the axial direction of the compressor; the blocking component is arranged in at least one oil return channel, opposite to the notch, in the multiple oil return channels so as to block the at least one oil return channel opposite to the notch. Due to the fact that the blocking part blocks the at least one oil return channel opposite to the notch, the flowing speed of the lubricating oil is reduced, the impact of the lubricating oil returning to the oil pool on the oil surface in the oil pool is reduced, and then the stability of the compressor in the movement process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field, specifically, relate to a kind of compressor and refrigeration equipment. BACKGROUND

[0002] Currently, in related art, when compressor works, refrigerant and lubricating oil in the compressor are compressed by the pump body of compressor, and then move to the top of compressor through the through hole on rotor, and the refrigerant and lubricating oil are separated after moving above the rotor, and then flow back to the oil pool below the compressor through the cutting edge of stator and the cutting of pump body. However, the lubricating oil flowing back to the oil pool through the cutting edge of stator and the cutting of pump body will impact the oil surface of the oil pool, causing large fluctuation of the oil surface of the oil pool, and reducing the stability of the compressor during operation. SUMMARY

[0003] The utility model is at least to solve one of the technical problems existing in prior art or related art.

[0004] Therefore, the first aspect of the utility model provides a kind of compressor.

[0005] The second aspect of the utility model provides a kind of refrigeration equipment.

[0006] Therefore, the first aspect of the utility model provides a kind of compressor.

[0007] The compressor provided by the application comprises a shell assembly and a stator assembly, the stator assembly comprises a stator core, the stator core is arranged in the shell assembly, and the stator core is supported by the shell assembly, thereby improving the stability of the compressor in operation. The stator core is provided with a plurality of oil return channels, the plurality of oil return channels pass through the stator core in the axial direction of the compressor, the refrigerant and the lubricating oil flowing above the stator core are separated, the separated lubricating oil flows to the oil pool of the compressor along the oil return channels, and the separated refrigerant is discharged from the exhaust port of the compressor. The pump assembly comprises a pump body, the pump body is arranged in the shell assembly, and the pump body can compress the refrigerant. The compressed refrigerant and the lubricating oil are mixed and then flow to the upper side of the stator core through the rotor. The pump body is provided with a cutting, the cutting passes through the pump body in the axial direction of the compressor, and the lubricating oil flowing through the oil return channels can flow back to the oil pool through the cutting.

[0008] The compressor further comprises a blocking component, the blocking component is arranged in at least one of the plurality of oil return channels opposite to the cutout in the axial direction of the compressor, and the lubricating oil can return to the oil pool of the compressor through the cutout and the at least one oil return channel not blocked by the blocking component. Since the blocking component blocks at least one of the plurality of oil return channels opposite to the cutout, the flow speed of the lubricating oil is reduced, the impact of the lubricating oil returning to the oil pool on the oil surface in the oil pool is reduced, the fluctuation of the oil surface of the lubricating oil in the oil pool is reduced, the oil surface of the lubricating oil in the oil pool is more stable, and the stability of the compressor during movement is improved. Especially when the compressor starts in a low-temperature environment, the local reduction of the oil surface caused by the fluctuation of the oil surface of the lubricating oil in the oil pool is avoided, and the lubricating effect of the lubricating oil on the compressor is improved.

[0009] Specifically, during the operation of the compressor, the amount of oil returned by the oil return channel is higher than the actual required amount of oil returned, the oil return channel has excessive oil return capacity, the oil return channel impacts the oil pool, and the oil surface is violently fluctuated and the height of the oil surface is reduced. By optimizing the oil return channel and the cutout, the impact of the oil return on the oil pool is reduced, and the height of the oil surface is improved.

[0010] In addition, the compressor in the above technical solution provided by the utility model can also have the following additional technical features:

[0011] In some technical solutions of the utility model, the stator assembly further comprises an end plate, the end plate is arranged on one side of the stator core in the axial direction of the compressor, the blocking component is connected with the end plate, and extends to the oil return channel in the radial direction of the compressor.

[0012] In the technical solution, the stator assembly further comprises an end plate, the end plate is arranged on one side of the stator core in the axial direction of the compressor, the blocking component is connected with the end plate, and the stability of the blocking component during the operation of the compressor is improved by supporting the blocking component through the end plate. Since the blocking component is connected with the end plate, the assembly of the blocking component is simpler, the assembly process of the blocking component is simplified, and the assembly difficulty of the blocking component is reduced. The blocking component extends to the oil return channel in the radial direction of the compressor, thereby blocking the oil return channel, simplifying the structure required for blocking the oil return channel, and reducing the cost required for blocking the oil return channel.

[0013] In some technical solutions of the utility model, the end plate and the blocking component are of an integrated structure.

[0014] In the technical scheme, the end plate and the plugging component are in an integrated structure, further simplifying an assembly process of the plugging component and reducing assembly difficulty of the plugging component. Moreover, the end plate and the plugging component are in an integrated structure, so that the end plate and the plugging component have higher connection strength, the probability that the plugging component is separated from the oil return channel due to impact of lubricating oil is reduced, and stability of the plugging component in a working process of the compressor is improved.

[0015] In some technical schemes of the utility model, optionally, the plurality of oil return channels comprises a first oil return channel and a second oil return channel; the compressor is projected along the axial direction of the compressor, the projection of the first oil return channel is located on one side of the projection of the cutout in the circumferential direction of the compressor, and the projection of the first oil return channel at least partially coincides with the projection of the cutout; the projection of the second oil return channel is located on the other side of the projection of the cutout in the circumferential direction of the compressor, and the projection of the second oil return channel at least partially coincides with the projection of the cutout; the plugging component is arranged in the first oil return channel and the second oil return channel.

[0016] In the technical scheme, the plurality of oil return channels comprises a first oil return channel and a second oil return channel, the first oil return channel and the second oil return channel both penetrate the stator core along the axial direction of the compressor, and the first oil return channel and the second oil return channel are arranged side by side. The compressor is projected along the axial direction of the compressor, the projection of the first oil return channel is located on one side of the projection of the cutout in the circumferential direction of the compressor, and the projection of the first oil return channel at least partially coincides with the projection of the cutout; the projection of the second oil return channel is located on the other side of the projection of the cutout in the circumferential direction of the compressor, and the projection of the second oil return channel at least partially coincides with the projection of the cutout, that is, the cutout simultaneously spans the two oil return channels; since the plugging component is arranged in the first oil return channel and the second oil return channel, that is, the plugging component plugs the first oil return channel and the second oil return channel, the first oil return channel and the second oil return channel opposite to the cutout cannot return oil, further reducing impact of lubricating oil returned through the oil return channel and the cutout on an oil surface of lubricating oil in the oil pool, and improving stability of the oil surface of lubricating oil in the oil pool.

[0017] Specifically, in the axial direction of the compressor, the cutout is opposite to the oil return channel, which can be understood as that the compressor is projected along the axial direction of the compressor, the projection of the oil return channel completely coincides with the projection of the cutout, or the projection of the oil return channel partially coincides with the projection of the cutout.

[0018] In some technical schemes of the utility model, optionally, the central angle corresponding to the first oil return channel and the second oil return channel is a first angle; the central angle corresponding to the cutout is a second angle; the first angle is greater than the second angle.

[0019] In the technical solution, the first angle is greater than the second angle, that is, the first oil return channel and the second oil return channel opposite to the cutout are both blocked, the first oil return channel and the second oil return channel opposite to the cutout cannot return oil, the impact of the lubricating oil returned through the oil return channel and the cutout on the oil surface in the oil pool is further reduced, and the stability of the oil surface in the oil pool is improved.

[0020] Specifically, on one radial section of the stator core, the center line of the first oil return channel passes through the axis of the compressor, the center line of the second oil return channel passes through the axis of the compressor, and the center line of the first oil return channel and the center line of the second oil return channel form a first angle.

[0021] On one radial section of the pump assembly, the intersection of the edge of the cutout on one side of the compressor in the circumferential direction and the outer circle of the radial section is a first point, and a first straight line passes through the first point and the axis of the compressor; the intersection of the edge of the cutout on the other side of the compressor in the circumferential direction and the outer circle of the radial section is a second point, and a second straight line passes through the second point and the axis of the compressor; the included angle formed by the first straight line and the second straight line is a second angle.

[0022] The first angle contains the second angle, that is, the projection of the first angle along the axial direction of the compressor coincides with the projection of the second angle, and the projection of the first angle contains the projection of the second angle.

[0023] In some technical solutions of the utility model, optionally, the sum of the areas of the radial sections of the plurality of oil return channels is a first area; the area of the radial section of the at least one oil return channel opposite to the cutout is a second area; the ratio of the second area to the first area is greater than or equal to 0.2 and less than or equal to 0.3.

[0024] In the technical solution, the sum of the areas of the radial sections of the plurality of oil return channels is a first area, that is, a radial section is made on the stator core, and the sum of the areas of the regions corresponding to the plurality of oil return channels on the radial section is the first area. The area of the radial section of the at least one oil return channel opposite to the cutout is a second area, that is, the sum of the areas of the regions corresponding to the at least one oil return channel blocked by the blocking component is the second area. The ratio of the second area to the first area is greater than or equal to 0.2 and less than or equal to 0.3, which can further improve the relative height of the oil surface in the oil pool and further improve the stability during the operation of the compressor.

[0025] The ratio of the second area to the first area is greater than or equal to 0.2, the flow capacity of the oil return channel is adjusted, and the oil return channel has a certain flow capacity; the ratio of the second area to the first area is less than or equal to 0.3, the flow capacity of the oil return channel is reduced, and the impact on the oil pool is improved.

[0026] Specifically, the oil return passage flow rate depends on the oil return passage pressure difference and the rotor flow area. By reducing the oil return passage or the rotor through hole area, the compressor flow rate can be effectively reduced. The sealing of the oil return passage and / or the rotor through hole area for the adjustment of the compressor flow rate can also reduce the oil return passage air volume, improve the impact on the oil pool, and ensure the oil return passage has a certain flow capacity.

[0027] Specifically, the ratio of the second area to the first area is 0.2.

[0028] The ratio of the second area to the first area is 0.3.

[0029] The ratio of the second area to the first area is 0.23.

[0030] The ratio of the second area to the first area is 0.25.

[0031] The ratio of the second area to the first area is 0.28.

[0032] In some technical solutions of the utility model, optionally, the radial section of the oil return passage is circular, semicircular, elliptical or polygonal.

[0033] In the technical solution, the radial section of the oil return passage is circular, semicircular, elliptical or polygonal, facilitating the processing of the oil return passage and reducing the manufacturing process difficulty of the oil return passage. The radial section of the oil return passage being circular, semicircular, elliptical or polygonal reduces the resistance of the oil return passage to the lubricating oil and improves the smoothness of the lubricating oil in the oil return passage.

[0034] Further, the oil return passage can be a through hole arranged on the stator core, and the oil return passage penetrates the stator core, and the radial section of the oil return passage can be circular, elliptical or polygonal.

[0035] The oil return passage can also be a notch arranged at the edge of the stator core, the notch penetrates the stator core along the axial direction, and the notch and the inner wall of the shell assembly enclose the oil return passage, and the notch can be semicircular or polygonal.

[0036] In some technical solutions of the utility model, optionally, the sealing part is located at one end of the oil return passage away from the pump assembly; and / or the sealing part is located in the oil return passage; and / or the sealing part is located at one end of the oil return passage close to the pump assembly.

[0037] In the technical scheme, the lubricating oil in the compressor is separated from the refrigerant on the side of the stator core away from the pump assembly, the lubricating oil can flow from the side of the stator core away from the pump assembly to the oil pool, the blocking part is located at the end of the oil return channel away from the pump assembly, the lubricating oil is blocked outside the oil return channel by the blocking part, thereby reducing the probability of the lubricating oil remaining in the oil return channel, reducing the influence of the lubricating oil return process on the oil surface in the oil pool, and further improving the height of the oil surface in the oil pool. The blocking part is located in the oil return channel, which further simplifies the assembly process of the blocking part and reduces the assembly difficulty of the blocking part. The blocking part is located at the end of the oil return channel close to the pump assembly, so that the impact force of the refrigerant on the blocking part is directed towards the oil return channel, reducing the probability of the blocking part separating from the oil return channel, and further improving the stability of the blocking part during the operation of the compressor.

[0038] Specifically, the stator core can be arranged above the pump assembly.

[0039] The blocking part is located at the end of the oil return channel away from the pump assembly, that is, the blocking part blocks the top of the oil return channel.

[0040] The blocking part is located at the end of the oil return channel close to the pump assembly, that is, the blocking part blocks the bottom of the oil return channel.

[0041] The blocking part is located in the oil return channel, that is, the blocking part blocks the middle of the oil return channel.

[0042] In some technical schemes of the utility model, optionally, the stator core is provided with a plurality of cut edges, the plurality of cut edges are arranged along the circumferential edge of the stator core, and the plurality of cut edges respectively surround the inner wall of the shell assembly to form a plurality of oil return channels.

[0043] In the technical scheme, the stator core is provided with a plurality of cut edges, the plurality of cut edges are arranged along the circumferential edge of the stator core, the plurality of cut edges respectively surround the inner wall of the shell assembly to form a plurality of oil return channels, the oil return channel not blocked by the blocking part in the plurality of oil return channels is used for the oil return of the lubricating oil, and the oil return channel blocked by the blocking part in the plurality of oil return channels prevents the lubricating oil from returning, thereby preventing the formation of an oil path in the compressor along the axial direction, and reducing the impact of the lubricating oil returned to the oil pool on the oil surface.

[0044] In some technical schemes of the utility model, optionally, the compressor further comprises a rotor assembly, the rotor assembly comprises a rotor core and a rotating shaft, the rotor core is arranged in the stator core, and the rotating shaft is arranged in the rotor core.

[0045] In the technical solution, the rotor assembly comprises a rotor core and a rotating shaft, the rotor core is arranged in the stator core, the rotating shaft is arranged in the rotor core, the stator winding can drive the rotor core to rotate, and the rotor core can drive the rotating shaft to rotate.

[0046] Further, the compressor further comprises a liquid accumulator, a lower bearing, an upper bearing and a muffler.

[0047] The shell assembly comprises a main shell and a sealing shell, the stator assembly, the rotor assembly and the pump assembly are arranged in the main shell, and the sealing shell is buckled to the main shell.

[0048] The liquid accumulator is connected with the compression cavity of the pump body, and is used for gas-liquid separation and preventing liquid impact of the compressor.

[0049] The piston is arranged in the compression cavity.

[0050] The top of the shell assembly is provided with an exhaust port, and the exhaust port is used for conveying high-temperature and high-pressure refrigerant into a refrigeration system.

[0051] The stator winding can drive the rotor core to rotate, the rotor core drives the piston to rotate through the rotating shaft, so that the compressor can compress, suck and exhaust refrigerant. The muffler realizes the sound reduction process.

[0052] The second aspect of the utility model provides a refrigeration equipment, comprising the compressor of any one of the above technical solutions, so that the refrigeration equipment has all the beneficial effects of the compressor of any one of the above technical solutions.

[0053] Specifically, the refrigeration equipment comprises a refrigerator, an air conditioner, a freezer, a wine cabinet or a display cabinet.

[0054] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0055] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0056] Figure 1 One of the sectional views of the compressor according to one embodiment of the utility model is shown;

[0057] Figure 2 The structural schematic view of the compressor according to one embodiment of the utility model is shown;

[0058] Figure 3 For Figure 2A cross-sectional view of a compressor according to one embodiment of the present application along D-D is shown.

[0059] Figure 4 A second cross-sectional view of a compressor according to one embodiment of the present application is shown.

[0060] Figure 5 A graph showing the change of the ratio of the second area to the first area with respect to the relative height of the oil surface is shown.

[0061] wherein, Figures 1 to 4 The correspondence between the reference signs and the component names in the drawings is as follows:

[0062] 100 housing assembly, 110 main housing, 120 seal housing, 130 exhaust port, 200 stator assembly, 210 stator core, 220 oil return passage, 222 first oil return passage, 224 second oil return passage, 230 stator winding, 240 chamfer, 300 pump assembly, 310 pump body, 312 cutout, 320 piston, 400 plugging component, 500 end plate, 600 rotor assembly, 610 rotor core, 620 rotating shaft, 710 liquid accumulator, 720 lower bearing, 730 upper bearing, 740 muffler. DETAILED DESCRIPTION

[0063] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0064] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0065] The following description refers to the accompanying drawings that show embodiments of the present application. Figures 1 to 5 A compressor and a refrigeration device according to some embodiments of the present application are described below with reference to the accompanying drawings.

[0066] In one embodiment of the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a compressor is provided, comprising a shell assembly 100, a stator assembly 200, a pump assembly 300 and a blocking component 400; the stator assembly 200 comprises a stator core 210, the stator core 210 is arranged in the shell assembly 100, the stator core 210 is provided with a plurality of oil return channels 220, the plurality of oil return channels 220 pass through the stator core 210 along the axial direction of the compressor; the pump assembly 300 comprises a pump body 310, the pump body 310 is arranged in the shell assembly 100, the pump body 310 is provided with a cutout 312, the cutout 312 passes through the pump body 310 along the axial direction of the compressor, in the axial direction of the compressor, the cutout 312 is opposite to at least one of the plurality of oil return channels 220; the blocking component 400 is arranged in at least one of the plurality of oil return channels 220 opposite to the cutout 312, so as to block at least one of the plurality of oil return channels 220 opposite to the cutout 312.

[0067] In this embodiment, the compressor comprises a shell assembly 100 and a stator assembly 200, the stator assembly 200 comprises a stator core 210, the stator core 210 is arranged in the shell assembly 100, and then the stator core 210 is supported by the shell assembly 100, so as to improve the stability of the compressor. The stator core 210 is provided with a plurality of oil return channels 220, the plurality of oil return channels 220 pass through the stator core 210 along the axial direction of the compressor, the refrigerant and the lubricating oil flowing above the stator core 210 are separated, the separated lubricating oil flows along the oil return channel 220 to the oil pool of the compressor, and the separated refrigerant is discharged from the exhaust port 130 of the compressor. The pump assembly 300 comprises a pump body 310, the pump body 310 is arranged in the shell assembly 100, the pump body 310 can compress the refrigerant, and the compressed refrigerant and the lubricating oil are mixed and then flow to the upper side of the stator core 210 through the rotor. The pump body 310 is provided with a cutout 312, the cutout 312 passes through the pump body 310 along the axial direction of the compressor, and the lubricating oil flowing through the oil return channel 220 can flow back to the oil pool through the cutout 312.

[0068] The compressor also includes a blocking component 400. A notch 312 is positioned axially opposite at least one of the plurality of oil return channels 220. The blocking component 400 is located at least one oil return channel 220 opposite the notch 312 to block it. Lubricating oil can then flow back to the compressor's oil sump from the unblocked oil return channel 220 and the notch 312. Because the blocking component 400 blocks at least one oil return channel 220 opposite the notch 312, lubricating oil can flow back to the compressor's oil sump from the unblocked oil return channel 220 and the notch 312. This reduces the flow velocity of the lubricating oil, decreases the impact of the returning lubricating oil on the oil surface in the oil sump, reduces fluctuations in the oil surface, and makes the oil surface in the oil sump more stable, thereby improving the stability of the compressor during operation. Especially when the compressor starts in a low-temperature environment, it avoids the local drop in oil level caused by fluctuations in the oil level of the lubricating oil in the oil sump, thus improving the lubrication effect of the lubricating oil on the compressor.

[0069] Specifically, during compressor operation, without considering the pressure difference across the oil return channel 220, the oil return volume of the oil return channel 220 may exceed the actual required return volume. This excess return capacity of the oil return channel 220 causes the returned oil to impact the oil sump, resulting in drastic fluctuations in the oil level and a drop in oil level height. By optimizing the oil return channel 220 and the cut 312, the impact of the returned oil on the oil sump is reduced, and the oil level height is increased.

[0070] Specifically, the axial direction in this application is Figure 1 The direction indicated by arrow A. Radial in this application is... Figure 1 The direction indicated by arrow B. The circumferential direction in this application is... Figure 4 The direction indicated by the middle arrow C.

[0071] This embodiment provides a compressor, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0072] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the stator assembly 200 also includes an end plate 500, which is disposed on one side of the stator core 210 in the axial direction of the compressor. The sealing component 400 is connected to the end plate 500 and extends radially along the compressor to the oil return passage 220.

[0073] In the embodiment, the stator assembly 200 further comprises an end plate 500 arranged at one side of the stator core 210 in the axial direction of the compressor, the blocking component 400 is connected with the end plate 500, and the end plate 500 supports the blocking component 400, thereby improving the stability of the blocking component 400 during the operation of the compressor. Since the blocking component 400 is connected with the end plate 500, the assembly of the blocking component 400 is simpler, thereby simplifying the assembly process of the blocking component 400 and reducing the assembly difficulty of the blocking component 400. The blocking component 400 extends to the oil return channel 220 in the radial direction of the compressor, thereby blocking the oil return channel 220, simplifying the structure required for blocking the oil return channel 220, and thereby reducing the cost required for blocking the oil return channel 220.

[0074] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features.

[0075] The end plate 500 and the blocking component 400 are in an integrated structure.

[0076] In the embodiment, the end plate 500 and the blocking component 400 are in an integrated structure, thereby further simplifying the assembly process of the blocking component 400 and reducing the assembly difficulty of the blocking component 400. Moreover, the end plate 500 and the blocking component 400 are in an integrated structure, thereby having higher connection strength between the end plate 500 and the blocking component 400, reducing the probability that the blocking component 400 is separated from the oil return channel 220 due to the impact of the lubricating oil, and improving the stability of the blocking component 400 during the operation of the compressor.

[0077] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features.

[0078] As shown in Figure 2 and Figure 3 , the plurality of oil return channels 220 comprises a first oil return channel 222 and a second oil return channel 224; the compressor is projected in the axial direction of the compressor, the projection of the first oil return channel 222 is located at one side of the projection of the cutout 312 in the circumferential direction of the compressor, and the projection of the first oil return channel 222 at least partially overlaps with the projection of the cutout 312, the projection of the second oil return channel 224 is located at the other side of the projection of the cutout 312 in the circumferential direction of the compressor, and the projection of the second oil return channel 224 at least partially overlaps with the projection of the cutout 312; the blocking component 400 is arranged at the first oil return channel 222 and the second oil return channel 224.

[0079] In this embodiment, the plurality of oil return channels 220 includes a first oil return channel 222 and a second oil return channel 224, both of which pass through the stator core 210 along the axial direction of the compressor, and the first oil return channel 222 and the second oil return channel 224 are arranged side by side. Projecting the compressor along the axial direction of the compressor, the projection of the first oil return channel 222 is located on one side of the projection of the cutout 312 in the circumferential direction of the compressor, and the projection of the first oil return channel 222 at least partially coincides with the projection of the cutout 312; the projection of the second oil return channel 224 is located on the other side of the projection of the cutout 312 in the circumferential direction of the compressor, and the projection of the second oil return channel 224 at least partially coincides with the projection of the cutout 312, that is, the cutout 312 spans both oil return channels 220; Since the blocking member 400 is arranged in the first oil return channel 222 and the second oil return channel 224, that is, the blocking member 400 blocks the first oil return channel 222 and the second oil return channel 224, the first oil return channel 222 and the second oil return channel 224 opposite to the cutout 312 cannot return oil, further reducing the impact of the lubricating oil returned through the oil return channel 220 and the cutout 312 on the oil surface of the oil pool, and improving the stability of the oil surface of the oil pool.

[0080] Specifically, in the axial direction of the compressor, the cutout 312 is opposite to the oil return channel 220, which can be understood as projecting the compressor along the axial direction of the compressor, the projection of the oil return channel 220 completely coincides with the projection of the cutout 312, or the projection of the oil return channel 220 partially coincides with the projection of the cutout 312.

[0081] The present embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiments, the present embodiment further includes the following technical features.

[0082] As shown in Figure 2 and Figure 3 , the central angle corresponding to the first oil return channel 222 and the second oil return channel 224 is a first angle θ1; the central angle corresponding to the cutout 312 is a second angle θ2; the angle of the first angle θ1 is greater than the angle of the second angle θ2.

[0083] In this embodiment, the central angle corresponding to the first oil return channel 222 and the second oil return channel 224 is a first angle θ1, the central angle corresponding to the cutout 312 is a second angle θ2, and the angle of the first angle θ1 is greater than the angle of the second angle θ2, that is, the first oil return channel 222 and the second oil return channel 224 opposite to the cutout 312 are blocked, and the first oil return channel 222 and the second oil return channel 224 opposite to the cutout 312 cannot return oil, further reducing the impact of the lubricating oil returned through the oil return channel 220 and the cutout 312 on the oil surface of the oil pool, and improving the stability of the oil surface of the oil pool.

[0084] Specifically, on one radial section of the stator core 210, the axis of the compressor is the center line of the first oil return channel 222, the axis of the compressor is the center line of the second oil return channel 224, and the center line of the first oil return channel 222 and the center line of the second oil return channel 224 form a first angle θ1.

[0085] On one radial section of the pump assembly 300, the intersection of the edge of one side of the cutout 312 in the compressor circumferential direction and the outer circle of the radial section is a first point, and a first straight line is drawn through the first point and the axis of the compressor. The intersection of the edge of the other side of the cutout 312 in the compressor circumferential direction and the outer circle of the radial section is a second point, and a second straight line is drawn through the second point and the axis of the compressor. The included angle formed by the first straight line and the second straight line is a second angle θ2.

[0086] The first angle θ1 contains the second angle θ2, that is, along the axial direction of the compressor, the projection of the first angle θ1 coincides with the projection of the second angle θ2, and the projection of the first angle θ1 contains the projection of the second angle θ2.

[0087] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiment, the embodiment further includes the following technical features.

[0088] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the sum of the areas of the radial sections of the plurality of oil return channels 220 is a first area S1; the area of the radial section of at least one oil return channel 220 opposite the cutout 312 is a second area S2; the ratio of the second area S2 to the first area S1 is greater than or equal to 0.2 and less than or equal to 0.3.

[0089] In this embodiment, the sum of the areas of the radial sections of the plurality of oil return channels 220 is a first area S1, that is, a radial section is made to the stator core 210, and the sum of the areas of the regions corresponding to the plurality of oil return channels 220 on the radial section is the first area S1. The area of the radial section of at least one oil return channel 220 opposite the cutout 312 is a second area S2, that is, the sum of the areas of the regions corresponding to the at least one oil return channel 220 blocked by the blocking member 400 is the second area S2. As shown in Figure 5 , the ratio of the second area S2 to the first area S1 is greater than or equal to 0.2 and less than or equal to 0.3, which can further improve the relative height of the oil surface in the oil pool and further improve the stability of the compressor during operation.

[0090] The ratio of the second area S2 to the first area S1 is greater than or equal to 0.2, realizing the adjustment of the flow capacity of the oil return channel 220, and ensuring that the oil return channel 220 has a certain flow capacity; the ratio of the second area S2 to the first area S1 is less than or equal to 0.3, reducing the flow capacity of the oil return channel 220, and improving the impact on the oil pool.

[0091] Specifically, the flow capacity of the oil return channel 220 depends on the pressure difference between the upper and lower parts of the oil return channel 220 and the flow area of the stator and rotor. By reducing the area of the oil return channel 220 or the rotor through hole, the flow capacity of the compressor can be effectively reduced. Adjusting the flow capacity of the compressor by plugging the oil return channel 220 and / or the rotor through hole can also reduce the air volume of the oil return channel 220, improve the impact on the oil pool, and ensure that the oil return channel 220 has a certain flow capacity.

[0092] Specifically, the ratio of the second area S2 to the first area S1 is 0.2.

[0093] The ratio of the second area S2 to the first area S1 is 0.3.

[0094] The ratio of the second area S2 to the first area S1 is 0.23.

[0095] The ratio of the second area S2 to the first area S1 is 0.25.

[0096] The ratio of the second area S2 to the first area S1 is 0.28.

[0097] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features.

[0098] The radial cross section of the oil return channel 220 is circular, semicircular, elliptical or polygonal.

[0099] In this embodiment, the radial cross section of the oil return channel 220 is circular, semicircular, elliptical or polygonal, which facilitates the machining of the oil return channel 220 and reduces the difficulty of the manufacturing process of the oil return channel 220. The radial cross section of the oil return channel 220 is circular, semicircular, elliptical or polygonal, which reduces the resistance of the oil return channel 220 to the lubricating oil and improves the smoothness of the lubricating oil in the oil return channel 220.

[0100] Further, the oil return channel 220 can be a through hole arranged on the stator core 210, and the oil return channel 220 penetrates the stator core 210, and the radial cross section of the oil return channel 220 can be circular, elliptical or polygonal.

[0101] The oil return channel 220 can also be a notch provided at the edge of the stator core 210, the notch extending through the stator core 210 in the axial direction, and the notch and the inner wall of the shell assembly 100 surrounding the oil return channel 220, the notch can be semicircular or polygonal.

[0102] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiment, and further includes the following technical features.

[0103] As shown in Figure 1 and Figure 2 , the blocking part 400 is located at one end of the oil return channel 220 away from the pump assembly 300.

[0104] In this embodiment, the lubricating oil in the compressor is separated from the refrigerant on the side of the stator core 210 away from the pump assembly 300, the lubricating oil can flow from the side of the stator core 210 away from the pump assembly 300 to the oil pool, the blocking part 400 is located at one end of the oil return channel 220 away from the pump assembly 300, the lubricating oil is blocked outside the oil return channel 220 by the blocking part 400, thereby reducing the probability of the lubricating oil remaining in the oil return channel 220, thereby reducing the influence of the lubricating oil return process on the oil level in the oil pool, and further improving the height of the oil level in the oil pool.

[0105] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiment, and further includes the following technical features.

[0106] The blocking part 400 is located in the oil return channel 220.

[0107] In this embodiment, the blocking part 400 is located in the oil return channel 220, further simplifying the assembly process of the blocking part 400, and reducing the assembly difficulty of the blocking part 400.

[0108] The embodiment provides a compressor, in addition to the technical features of the above-mentioned embodiment, and further includes the following technical features.

[0109] The blocking part 400 is located at one end of the oil return channel 220 close to the pump assembly 300.

[0110] In this embodiment, the blocking part 400 is located at one end of the oil return channel 220 close to the pump assembly 300, so that the impact force of the refrigerant on the blocking part 400 is towards the oil return channel 220, reducing the probability of the blocking part 400 separating from the oil return channel 220, and further improving the stability of the blocking part 400 during the operation of the compressor.

[0111] Specifically, the stator core 210 can be provided above the pump assembly 300.

[0112] The blocking component 400 is located at the end of the oil return channel 220 away from the pump assembly 300, that is, the blocking component 400 blocks the top of the oil return channel 220.

[0113] The blocking component 400 is located at the end of the oil return channel 220 close to the pump assembly 300, that is, the blocking component 400 blocks the bottom of the oil return channel 220.

[0114] The blocking component 400 is located in the oil return channel 220, that is, the blocking component 400 blocks the middle of the oil return channel 220.

[0115] The embodiment provides a compressor, and in addition to the technical features of the above-mentioned embodiment, the embodiment further includes the following technical features.

[0116] As shown in Figure 2 , Figure 3 and Figure 4 , the stator core 210 is provided with a plurality of cut edges 240, the plurality of cut edges 240 are arranged along the circumferential edge of the stator core 210, and the plurality of cut edges 240 respectively surround the inner wall of the shell assembly 100 to form a plurality of oil return channels 220.

[0117] In this embodiment, the stator core 210 is provided with a plurality of cut edges 240, the plurality of cut edges 240 are arranged along the circumferential edge of the stator core 210, and the plurality of cut edges 240 respectively surround the inner wall of the shell assembly 100 to form a plurality of oil return channels 220, the oil return channels 220 not blocked by the blocking component 400 are used for oil return of the lubricating oil, and the oil return channels 220 blocked by the blocking component 400 make the lubricating oil unable to return, thereby preventing the oil path that linearly penetrates along the axial direction in the compressor, and reducing the impact of the lubricating oil in the return oil pool on the oil surface.

[0118] The embodiment provides a compressor, and in addition to the technical features of the above-mentioned embodiment, the embodiment further includes the following technical features.

[0119] As shown in Figure 1 and Figure 4 , the compressor further includes a rotor assembly 600, the rotor assembly 600 includes a rotor core 610 and a rotating shaft 620, the rotor core 610 is arranged in the stator core 210, and the rotating shaft 620 penetrates the rotor core 610; the pump assembly 300 further includes a piston 320, the piston 320 is sleeved on the rotating shaft 620 and arranged in the pump body 310.

[0120] In this embodiment, the rotor assembly 600 comprises a rotor core 610 and a rotating shaft 620, the rotor core 610 is arranged in the stator core 210, the rotating shaft 620 is arranged in the rotor core 610, the stator winding 230 can drive the rotor core 610 to rotate, and the rotor core 610 can drive the rotating shaft 620 to rotate. The pump assembly 300 further comprises a piston 320, the piston 320 is sleeved on the rotating shaft 620 and arranged in the pump body 310, the rotating shaft 620 can drive the piston 320 to move in the pump body 310, thereby realizing compression of the refrigerant.

[0121] Further, the compressor further comprises a liquid accumulator 710, a lower bearing 720, an upper bearing 730 and a muffler 740.

[0122] The shell assembly 100 comprises a main shell 110 and a sealing shell 120, the stator assembly 200, the rotor assembly 600 and the pump assembly 300 are arranged in the main shell 110, and the sealing shell 120 is buckled on the main shell 110.

[0123] The liquid accumulator 710 is connected with a compression chamber of the pump body 310, and is used for gas-liquid separation and preventing liquid hammer phenomenon of the compressor.

[0124] The piston 320 is arranged in the compression chamber.

[0125] A top portion of the shell assembly 100 is provided with an exhaust port 130, and the exhaust port 130 is used for conveying high-temperature and high-pressure refrigerant into a refrigeration system.

[0126] The stator winding 230 can drive the rotor core 610 to rotate, the rotor core 610 drives the piston 320 to rotate through the rotating shaft 620, so as to realize compression, suction and exhaust of the compressor on the refrigerant. The muffler 740 realizes a silencing process.

[0127] In one embodiment of the utility model, a refrigeration equipment is provided, which comprises the compressor according to any one of the above embodiments, so that the refrigeration equipment has all the beneficial effects of the compressor according to any one of the above embodiments.

[0128] Specifically, the refrigeration equipment comprises a refrigerator, an air conditioner, a freezer, a wine cabinet or a display cabinet.

[0129] In the claims, the specification, and the drawings of the present application, the terms "multiple" refers to two or more, unless otherwise expressly specified and limited by context, the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for more convenient description of the present application and make the description process more simple, and is not intended to indicate or imply that the device or element must have the described specific orientation, structure and operation, therefore these descriptions cannot be understood as a limitation on the present application; The terms "connection", "installation", "fixing" and the like should be understood broadly, for example, "connection" can be fixed connection between multiple objects, can also be detachable connection between multiple objects, or integrally connected; It can be direct connection between multiple objects, or indirect connection between multiple objects through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances of the above data.

[0130] In the claims, the specification, and the drawings of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the claims, the specification and the drawings of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0131] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compressor characterized by, The compressor comprises: a shell assembly; a stator assembly comprising a stator core, the stator core being arranged in the shell assembly, the stator core being provided with a plurality of oil return channels, the plurality of oil return channels penetrating the stator core in an axial direction of the compressor; a pump assembly comprising a pump body, the pump body being arranged in the shell assembly, the pump body being provided with a cutout, the cutout penetrating the pump body in the axial direction of the compressor, the cutout being opposite to at least one of the plurality of oil return channels in the axial direction of the compressor; a blocking component arranged in the at least one of the plurality of oil return channels opposite to the cutout to block the at least one of the plurality of oil return channels opposite to the cutout.

2. The compressor of claim 1, wherein, The stator assembly further comprises: an end plate arranged at one side of the stator core in the axial direction of the compressor, the blocking component being connected to the end plate and extending to the oil return channel in a radial direction of the compressor.

3. The compressor of claim 2, wherein, The end plate and the blocking component are in an integrated structure.

4. The compressor of claim 1, wherein, The plurality of oil return channels comprises a first oil return channel and a second oil return channel; in projection of the compressor in the axial direction of the compressor, a projection of the first oil return channel is located at one side of a projection of the cutout in a circumferential direction of the compressor, and the projection of the first oil return channel at least partially overlaps the projection of the cutout, a projection of the second oil return channel is located at the other side of the projection of the cutout in the circumferential direction of the compressor, and the projection of the second oil return channel at least partially overlaps the projection of the cutout; the blocking component is arranged in the first oil return channel and the second oil return channel.

5. The compressor of claim 4, wherein, a central angle corresponding to the first oil return channel and the second oil return channel is a first angle; a central angle corresponding to the cutout is a second angle; an angle of the first angle is greater than an angle of the second angle.

6. The compressor of claim 1, wherein, a sum of areas of radial sections of the plurality of oil return channels is a first area; an area of a radial section of the at least one of the plurality of oil return channels opposite to the cutout is a second area; a ratio of the second area to the first area is greater than or equal to 0.2 and less than or equal to 0.

3.

7. The compressor of claim 1, wherein the radial section of the oil return channel is circular, semicircular, elliptical or polygonal.

8. The compressor of claim 1, wherein, the blocking component is located at an end of the oil return channel away from the pump assembly; and / or the blocking component is located in the oil return channel; and / or the blocking component is located at an end of the oil return channel close to the pump assembly.

9. The compressor of claim 1, wherein, the stator core is provided with a plurality of cut edges, the plurality of cut edges being arranged along a circumferential edge of the stator core, and the plurality of cut edges respectively surround the plurality of oil return channels with inner walls of the shell assembly.

10. The compressor of any one of claims 1 to 9, wherein, The compressor further comprises: a rotor assembly comprising a rotor core and a rotor shaft, the rotor core being arranged in the stator core, and the rotor shaft being arranged in the rotor core; the pump assembly further comprises a piston, the piston being sleeved on the rotor shaft and arranged in the pump body.

11. A refrigeration appliance characterized in that, The compressor comprises any one of claims 1-10.

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