Scroll compressor, air conditioner and static scroll assembly thereof

Abstract

The application provides a static scroll assembly, a scroll compressor and an air conditioner with the same, and relates to the technical field of compressors. The static scroll assembly comprises a static scroll, an exhaust port, an oil discharge port and a first oil return structure are arranged on the static scroll, and the first oil return structure is arranged in communication with the oil discharge port; an exhaust check valve assembly is connected with the static scroll, the exhaust check valve assembly has a valve cavity arranged opposite to the exhaust port and in communication with the exhaust port, and the exhaust check valve assembly is further provided with a second oil return channel in communication with the valve cavity; and the second oil return channel is arranged in communication with the first oil return structure. According to the technical scheme, the first oil return structure and the second oil return channel arranged on the static scroll assembly in the embodiment can be used as an oil-gas separation structure, when applied to a compressor, the static scroll assembly in the embodiment can reduce the proportion of lubricating oil carried by refrigerant during the exhaust of the compressor through the oil-gas separation structure, reduce the oil circulation rate of the compressor, and improve the operation energy efficiency of the single machine.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a static scroll assembly and a scroll compressor and air conditioner having the same. Background Technology

[0002] In existing technologies, scroll compressors are characterized by simple structure, small size, light weight, low noise, high efficiency, and stable operation. Scroll compressors are equipped with anti-reverse flow structures at the end of the suction pipe or the discharge port of the stationary plate to prevent refrigerant backflow into the compression chamber after the compressor stops, thus reducing aerodynamic noise caused by refrigerant backflow during shutdown. Existing discharge check valve assemblies typically consist of a check valve seat, check valve plate, and check gasket. During compressor operation, the refrigerant flows directly out through the openings on both sides of the discharge anti-reverse flow valve seat. Since the refrigerant carries some lubricating oil from the compression chamber, and the oil-gas mixture is not effectively separated at the discharge port of the stationary plate, it eventually flows out together from the compressor discharge pipe, increasing the compressor's single-unit oil circulation rate and affecting the overall performance of the compressor.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a static scroll assembly and a scroll compressor and air conditioner having the same, so as to solve the problem of low energy efficiency of compressors in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a stationary vortex assembly is provided, comprising: a stationary vortex, wherein the stationary vortex has an exhaust port, an oil drain port, and a first oil return structure, the first oil return structure being disposed in communication with the oil drain port; an exhaust check assembly, the exhaust check assembly being connected to the stationary vortex, the exhaust check assembly having a valve chamber disposed opposite to and communicating with the exhaust port, the exhaust check assembly further having a second oil return passage communicating with the valve chamber; the second oil return passage being disposed in communication with the first oil return structure.

[0006] Furthermore, the first oil return structure includes an oil return groove and a first oil return channel opened on the stationary vortex plate. The opening end of the oil return groove is set towards the side where the exhaust check component is located. One end of the first oil return channel is connected to the oil return groove, and the other end of the first oil return channel is connected to the oil drain port. The second oil return channel is connected to the first oil return channel through the oil return groove.

[0007] Furthermore, the oil return groove is arranged circumferentially along the exhaust port.

[0008] Furthermore, the oil return groove is an annular groove structure arranged circumferentially around the exhaust port.

[0009] Furthermore, the first oil return channel is provided to extend radially along the stationary vortex disk, and the oil discharge port is formed on the outer peripheral surface of the stationary vortex disk.

[0010] Furthermore, the exhaust check assembly includes: an exhaust check valve seat having a valve cavity; and an exhaust check gasket disposed between the exhaust check valve seat and the stationary vortex plate, wherein a second oil return passage is provided on the exhaust check gasket.

[0011] Furthermore, the second oil return channel includes an oil passage hole opened on the exhaust check gasket, and the valve chamber is connected to the oil return groove through the oil passage hole.

[0012] Furthermore, the exhaust check gasket has a through hole, through which the valve chamber and the exhaust port are connected. There are multiple oil passages, which are distributed circumferentially along the through hole.

[0013] Furthermore, multiple refrigerant flow holes are provided on the side walls of opposite sides of the exhaust check valve seat, and the refrigerant flow holes are connected to the valve cavity.

[0014] According to another aspect of the present invention, a scroll compressor is provided, the scroll compressor having a stationary scroll assembly, the stationary scroll assembly being the stationary scroll assembly described above.

[0015] Furthermore, the scroll assembly also includes an oil return pipe, one end of which is connected to the oil drain port, and the other end of which is connected to the oil sump of the scroll compressor.

[0016] Furthermore, the scroll compressor also includes a housing, with a stationary scroll disposed inside the housing. The outer circumferential surface of the stationary scroll is provided with a groove structure, and a refrigerant flow channel is formed between the groove structure and the inner wall of the housing. Part of the oil return pipe is located inside the groove structure.

[0017] According to another aspect of the present invention, an air conditioner is also provided, the air conditioner having a static scroll assembly, the static scroll assembly being the aforementioned static scroll assembly.

[0018] When the stationary scroll assembly starts operating, the refrigerant carries some lubricating oil in the pump body and enters the valve cavity in the form of an oil-gas mixture. At this time, some oil mist collides and coalesces inside the valve cavity, enriching into oil droplets, which then flow down the wall of the valve cavity and enter the first oil return structure on the stationary scroll along the second oil return channel. This achieves effective separation of refrigerant and lubricating oil at the exhaust port of the stationary scroll, allowing the lubricating oil to flow out from the oil outlet of the stationary scroll. By applying a subsequent lubricating oil guiding structure, the lubricating oil can be further guided and recovered. Compared with the stationary scroll assembly in the prior art, the first oil return structure and the second oil return channel provided on the stationary scroll assembly in this embodiment can serve as an oil-gas separation structure. When applied to a compressor, the stationary scroll assembly in this embodiment can reduce the proportion of lubricating oil carried by the refrigerant when the compressor is discharged through the oil-gas separation structure, thereby reducing the compressor oil circulation rate and improving the single-unit operating energy efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of a first embodiment of a scroll compressor according to the present invention is shown;

[0021] Figure 2 A schematic diagram of a second embodiment of a scroll compressor according to the present invention is shown;

[0022] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 A schematic diagram of a first embodiment of the static vortex disk assembly according to the present invention is shown;

[0024] Figure 5 A schematic diagram of a second embodiment of the static vortex disk assembly according to the present invention is shown;

[0025] Figure 6 A schematic diagram of an embodiment of the exhaust check valve seat according to the present invention is shown;

[0026] Figure 7 A schematic diagram of an embodiment of the exhaust check gasket according to the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 1. Static vortex disc; 100. Exhaust port; 101. Oil drain port; 102. Groove structure;

[0029] 2. Moving scroll plate; 201. Oil return groove; 202. First oil return channel;

[0030] 203. Refrigerant flow hole;

[0031] 204. Oil passage hole;

[0032] 3. Install the support frame;

[0033] 4. Electric motor;

[0034] 5. Shell;

[0035] 6. Bottom cover;

[0036] 7. Oil pump;

[0037] 8. Lower support;

[0038] 9. Rotor;

[0039] 10. Crankshaft;

[0040] 11. Lower support ring;

[0041] 12. Cross slip ring;

[0042] 13. Top cover;

[0043] 14. Exhaust check valve seat; 140. Valve chamber;

[0044] 15. Exhaust check gasket; 150. Through hole;

[0045] 16. Inhalation tube;

[0046] 17. Oil return pipe. Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0051] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, a static scroll assembly is provided.

[0052] Specifically, such as Figures 2 to 5 As shown, the stationary vortex assembly includes a stationary vortex disk 1 and an exhaust check assembly. The stationary vortex disk 1 has an exhaust port 100, an oil drain port 101, and a first oil return structure. The first oil return structure is connected to the oil drain port 101. The exhaust check assembly is connected to the stationary vortex disk 1. The exhaust check assembly has a valve chamber 140 that is opposite to and connected to the exhaust port 100. The exhaust check assembly also has a second oil return channel that is connected to the valve chamber 140. The second oil return channel is connected to the first oil return structure.

[0053] When the stationary scroll assembly starts operating, the refrigerant carries some lubricating oil in the pump body and enters the valve chamber 140 in the form of an oil-gas mixture. At this time, some oil mist collides and coalesces inside the valve chamber 140, enriches into oil droplets, and flows down along the wall of the valve chamber 140. It then enters the first oil return structure on the stationary scroll 1 along the second oil return channel, thereby achieving effective separation of refrigerant and lubricating oil at the exhaust port 100 of the stationary scroll 1. The lubricating oil can flow out from the oil outlet 101 of the stationary scroll 1. By applying the subsequent lubricating oil guiding structure, the lubricating oil can be further guided and recovered. Compared with the stationary scroll assembly in the prior art, the first oil return structure and the second oil return channel set on the stationary scroll assembly in this embodiment can serve as an oil-gas separation structure. When applied to a compressor, the stationary scroll assembly in this embodiment can reduce the proportion of lubricating oil carried by the refrigerant when the compressor is discharged through the oil-gas separation structure, reduce the compressor oil circulation rate, and improve the single-unit operating energy efficiency.

[0054] Specifically, such as Figure 3 , Figure 5 As shown, the first oil return structure includes an oil return groove 201 and a first oil return channel 202 opened on the stationary vortex plate 1. The opening end of the oil return groove 201 is set towards the side where the exhaust check component is located. One end of the first oil return channel 202 is connected to the oil return groove 201, and the other end of the first oil return channel 202 is connected to the oil discharge port 101. The second oil return channel is connected to the first oil return channel 202 through the oil return groove 201. This configuration allows for the separation of refrigerant and lubricating oil in a refrigerant-lubricating oil mixture based on their different physical properties. Simultaneously, the separated lubricating oil is recycled, improving the single-unit operating efficiency. In this embodiment, the opening of the oil return groove 201 faces the side where the exhaust check assembly is located, facilitating the flow of lubricating oil into the bottom oil return groove 201. A first oil return channel 202 is opened at the bottom of the oil return groove 201, allowing the lubricating oil in the groove to flow through the channel to the oil outlet 101, achieving the recycling of lubricating oil after oil-gas separation. The first oil return channel 202 can be structurally configured according to actual needs. For example, the first oil return channel 202 can be an oil passage extending radially along the stationary vortex plate 1, or it can include a radial oil passage and multiple branch structures. The first oil return channel 202 can be one or multiple. Further, as... Figure 5 As shown, the oil return groove 201 is arranged around the circumference of the exhaust port 100. When oil and gas accumulate to form oil droplets that flow down the wall of the valve cavity 140 and reach the exhaust port 100, the oil droplets will flow into the oil return groove 201 because the exhaust port 100 is arranged around the circumference of the oil return groove 201. This can prevent the oil droplets from flowing back into the exhaust port 100, which would increase the single-unit oil circulation rate and affect the single-unit energy efficiency.

[0055] In one embodiment of this application, the oil return groove 201 is an annular groove structure arranged circumferentially around the exhaust port 100, so that the exhaust port 100 is provided with oil return grooves 201 in all directions, so that when oil droplets flow back to the exhaust port 100 in any direction in the valve cavity 140, they can flow into the oil return groove 201.

[0056] Furthermore, such as Figure 2 , Figure 3 , Figure 5 As shown, the first oil return channel 202 extends radially along the stationary volute 1, and the oil drain port 101 is formed on the outer peripheral surface of the stationary volute 1. When the first oil return channel 202 extends radially along the stationary volute 1 to the outer peripheral surface of the stationary volute 1, the oil drain port 101 is formed on the outer peripheral surface of the stationary volute 1. After the lubricating oil flows back to the oil return groove 201 in the valve chamber 140, it can flow to the oil drain port 101 along the first oil return channel 202, so as to timely circulate the lubricating oil back and prevent the lubricating oil from accumulating and overflowing in the oil return groove 201 and flowing back into the exhaust port 100, which would affect the single unit's energy efficiency.

[0057] Furthermore, such as Figures 2 to 4 , Figures 6 to 7 As shown, the exhaust check assembly includes an exhaust check valve seat 14 and an exhaust check gasket 15. The exhaust check valve seat 14 has a valve chamber 140; the exhaust check gasket 15 is disposed between the exhaust check valve seat 14 and the stationary scroll 1, and a second oil return channel is provided on the exhaust check gasket 15. By setting the exhaust check valve seat 14 and the exhaust check gasket 15 on the exhaust port 100, the backflow of the refrigerant mixture containing oil and gas into the compression chamber after the compressor stops can be prevented, reducing the aerodynamic noise generated by the backflow of refrigerant during shutdown. At the same time, the valve chamber 140 of the exhaust check valve seat 14 can effectively separate the oil and gas mixture, and the circulation of lubricating oil is realized through the oil return channel structure on the exhaust check gasket 15 and the stationary scroll 1.

[0058] It should be noted that in the existing technology, the exhaust check valve seat has an opening structure directly set on both sides. During the operation of the compressor, the refrigerant will flow directly out along the openings on both sides of the exhaust check valve seat 14. The oil-gas mixture is not effectively separated, causing the lubricating oil to flow out from the compressor exhaust pipe together, which increases the single-unit oil circulation rate of the compressor and affects the compressor performance.

[0059] Those skilled in the art should understand that, based on the physical properties of the oil-gas mixture of refrigerant and lubricating oil, by increasing the probability of the oil mist carried by the refrigerant colliding and coalescing inside the exhaust check valve seat 14 during the exhaust of the compression chamber, the lubricating oil with higher density and mass aggregates to form oil droplets for separation of the oil-gas mixture. Setting the valve chamber 140 of the exhaust check valve seat 14 as a fully enclosed cavity structure can improve the probability of oil-gas collision and coalescence, thereby improving efficiency. At the same time, the fully enclosed structure can reduce the risk of the exhaust check gasket 15 tilting and jamming due to uneven gas force during the compressor start-up and shutdown process, thereby improving the reliability of the compressor unit.

[0060] Specifically, such as Figure 7 As shown, the second oil return channel includes an oil passage hole 204 formed on the exhaust check gasket 15, and the valve chamber 140 is connected to the oil return groove 201 through the oil passage hole 204. The oil passage hole 204 on the exhaust check gasket 15 facilitates the smooth flow of oil droplets down the wall of the valve chamber 140 into the oil return groove 201. Simultaneously, the exhaust check gasket 15 acts as a guide, preventing the formation of large oil droplets within the valve chamber 140 that directly enter the compression chamber, thus reducing the oil circulation rate.

[0061] It should be understood that the second oil return channel can have more structural forms. For example, the second oil return channel can also include an oil passage opened on the exhaust check gasket 15. The oil passage structure can realize the flow of lubricating oil and guide the lubricating oil to a designated position in a designated direction.

[0062] Furthermore, the exhaust check gasket 15 has a through hole 150, through which the valve chamber 140 and the exhaust port 100 are connected. Multiple oil passages 204 are provided, distributed circumferentially along the through hole 150. The multiple oil passages 204 allow more lubricating oil in the valve chamber 140 to flow directly into the oil return groove 201, improving lubricating oil recovery efficiency.

[0063] In conjunction with the aforementioned embodiments, the projection of the oil passage 204 along the axial direction coincides with the projection of the return oil groove 201, so that all lubricating oil flows into the return oil groove 201 through the oil passage 204. The oil passage 204 can be a common circular hole or an annular hole structure that matches the return oil groove 201. Furthermore, multiple refrigerant flow holes 203 are provided on the side walls of opposite sides of the exhaust check valve seat 14, and the refrigerant flow holes 203 are connected to the valve cavity 140. After the refrigerant and oil-gas mixture undergo oil-gas separation through the valve cavity 140, due to the increased pressure inside the exhaust check valve seat 14, the refrigerant is discharged from the exhaust check valve seat 14 through the refrigerant flow holes 203, while the lubricating oil remains in the exhaust check valve seat 14 and enters the return oil groove 201 through the second return oil channel, thereby achieving effective separation of refrigerant and lubricating oil at the exhaust port 100 of the stationary vortex plate 1.

[0064] By using the stationary scroll assembly in the above embodiments, an oil-gas separation structure is set at the exhaust port 100 of the stationary scroll 1 to enhance the probability of oil mist carried by the refrigerant colliding and coalescing inside the exhaust check valve seat 14 during exhaust. After being enriched into oil droplets, the oil flows out along the oil drain port 101 of the stationary scroll 1, thereby achieving effective separation of refrigerant and lubricating oil at the exhaust port 100 of the stationary scroll 1, reducing the compressor oil circulation rate, improving the single-unit operating energy efficiency, and at the same time, the fully enclosed exhaust check valve seat 14 can reduce the risk of the exhaust check gasket 15 tilting and jamming due to uneven gas force during the compressor start-up and shutdown process, thereby improving the single-unit reliability of the compressor.

[0065] According to another specific embodiment of this application, a scroll compressor is also provided, which has a stationary scroll assembly, the stationary scroll assembly being the stationary scroll assembly in the above embodiment.

[0066] Furthermore, such as Figure 1 As shown, the scroll compressor assembly also includes an oil return pipe 17. One end of the oil return pipe 17 is connected to the oil drain port 101, and the other end is connected to the oil sump of the scroll compressor. When the lubricating oil enters the oil return sump 201, it passes through the first oil return channel 202 and the oil return pipe 17 before entering the oil sump of the scroll compressor, allowing most of the lubricating oil carried out by the refrigerant to be recycled, thus improving the single-unit energy efficiency of the scroll compressor.

[0067] Specifically, such as Figure 4 , Figure 5 As shown, the scroll compressor also includes a housing 5, with a stationary scroll 1 disposed within the housing 5. A groove structure 102 is formed on the outer circumferential surface of the stationary scroll 1, creating a refrigerant flow channel between the groove structure 102 and the inner wall of the housing 5. A portion of the oil return pipe 17 is located within the groove structure 102. By creating the groove structure 102 on the outer circumferential surface of the stationary scroll 1, the recessed portion of the groove structure 102 and the housing 5 form a refrigerant flow channel. The refrigerant circulates through this channel, and the oil return pipe 17 passes through it. This design is simple, saves space, and improves the efficiency of both refrigerant and oil circulation.

[0068] This application also provides a preferred embodiment of a scroll compressor, which has a good effect on improving the single-unit operating energy efficiency of the scroll compressor and reducing the single-unit oil circulation rate during compressor operation.

[0069] Specifically, such as Figure 1As shown, the scroll compressor consists of a motor 4, an upper bracket 3, a lower bracket 8, a stationary scroll 1, a moving scroll 2, a cross slip ring 12, a crankshaft 10, an oil pump 7, and a rotor 9. The motor 4 is fixed to the housing 5 by a heat-shrink fitting, and the upper bracket 3 is fixed to the housing 5 by spot welding. The moving scroll 2 and the stationary scroll 1 are mounted opposite each other on the upper bracket 3 with a phase angle difference of 180°. The moving scroll 2 moves under the drive of the crankshaft 10 and meshes with the stationary scroll 1 to form a series of mutually isolated crescent-shaped sealed cavities with continuously changing volumes. The stationary scroll 1 is fixed to the upper bracket 3 by screw fasteners. The lower bracket 8 is fixed to the lower support ring 11 by screws, and the lower support ring 11 is then fixed to the housing 5 by spot welding.

[0070] When the compressor is running, the motor 4 drives the crankshaft 10 to rotate. The crank of the crankshaft 10 drives the moving scroll 2 to move. Under the anti-rotation restriction of the cross slip ring 12, the moving scroll 2 moves around the center of the crankshaft 10 with a fixed radius. The refrigerant entering from the suction pipe 16 is drawn into the crescent-shaped suction chamber formed by the moving scroll 2 and the stationary scroll 1. After being compressed, it is discharged from the exhaust port 100 of the stationary scroll 1 and enters the receiving cavity between the upper cover 13 and the stationary scroll 1. Then, it enters the cavity between the upper support 3 and the motor 4 through the exhaust groove of the stationary scroll 1 and the upper support 3. Part of it enters the lower end of the motor 4 through the flow groove between the motor 4 and the housing 5. Finally, the high-pressure exhaust refrigerant is discharged through the exhaust pipe.

[0071] like Figures 4 to 7 As shown, an oil return groove 201 is opened around the exhaust port 100 on the back of the stationary volute 1, and a first oil return channel 202 is opened on the back of the stationary volute. The first oil return channel 202 is connected to the oil return groove 201. The oil drain port 101 is connected to the first oil return channel 202. The oil drain port 101 is fitted with an oil return pipe 17 in an interference fit. The exhaust check valve seat 14 adopts a fully enclosed structure. Multiple refrigerant flow holes 203 are opened on the side walls at both ends. The exhaust check gasket 15 is placed at the bottom of the exhaust check valve seat 14. Multiple oil passage holes 204 are opened in a ring around the exhaust check gasket 15.

[0072] The working principle of the scroll compressor in this embodiment is as follows:

[0073] When the scroll compressor starts working, the refrigerant carries some lubricating oil in the pump body and enters the exhaust check valve seat 14 in the form of an oil-gas mixture. At this time, some oil mist collides and coalesces inside the exhaust check valve seat 14, accumulating into oil droplets, which then flow down the inner wall of the exhaust check valve seat 14, pass through the oil passage 204 of the exhaust check gasket 15, and enter the oil return groove 201. When the lubricating oil accumulated in the oil return groove 201 reaches a certain amount, the lubricating oil flows along the first oil return channel 202 into the oil drain port 101 of the oil passage on the back of the stationary plate, and finally flows along the oil return pipe 17 into the oil sump at the bottom of the compressor. This exhaust check structure and oil return flow path can enhance the separation ratio of the oil-gas mixture at the exhaust port 100 of the stationary plate, reduce the amount of lubricating oil carried by the refrigerant and flowing directly out of the compressor exhaust pipe, thereby reducing the single-unit oil circulation rate during compressor operation and ultimately improving the single-unit energy efficiency of the scroll compressor.

[0074] In addition, the exhaust check valve seat 14 adopts a fully enclosed structure, which can avoid the phenomenon of tilting and jamming caused by uneven force on the outer side of the check valve plate during start-up and shutdown or by burrs on the opening edge or the overturned structure during processing. It has a certain effect on improving the reliability of the single-unit operation of the scroll compressor and reducing the noise generated by abnormal impact of the valve plate.

[0075] According to another specific embodiment of this application, an air conditioner is also provided, which has a static scroll assembly, the static scroll assembly being the static scroll assembly in the above embodiment.

[0076] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0077] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0078] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the 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 vortex disk assembly, characterized in that, include: A static vortex disk (1) is provided with an exhaust port (100), an oil drain port (101) and a first oil return structure, wherein the first oil return structure is connected to the oil drain port (101). An exhaust check assembly is connected to the stationary vortex disk (1). The exhaust check assembly has a valve chamber (140) that is opposite to and communicates with the exhaust port (100). The exhaust check assembly also has a second oil return passage that communicates with the valve chamber (140). The second oil return channel is configured to communicate with the first oil return structure; The first oil return structure includes an oil return groove (201) and a first oil return channel (202) formed on the stationary vortex disk (1). The opening end of the oil return groove (201) is arranged facing the side where the exhaust check assembly is located. One end of the first oil return channel (202) is connected to the oil return groove (201), and the other end of the first oil return channel (202) is connected to the oil drain port (101). The second oil return channel is connected to the first oil return channel (202) through the oil return groove (201). The first oil return channel (202) extends radially along the stationary vortex disk (1), and the oil drain port (101) is formed on the outer peripheral surface of the stationary vortex disk (1). The exhaust check assembly includes: An exhaust check valve seat (14) having the valve chamber (140). An exhaust check gasket (15) is provided between the exhaust check valve seat (14) and the stationary vortex disc (1), and a second return oil passage is provided on the exhaust check gasket (15). The second oil return channel includes an oil passage hole (204) opened on the exhaust check gasket (15), and the valve chamber (140) is connected to the oil return groove (201) through the oil passage hole (204); The exhaust check gasket (15) has a through hole (150), the valve chamber (140) and the exhaust port (100) are connected through the through hole (150), and there are multiple oil passages (204), which are distributed circumferentially along the through hole (150).

2. The static scroll assembly according to claim 1, characterized in that, The oil return groove (201) is arranged circumferentially along the exhaust port (100).

3. The static vortex disk assembly according to claim 2, characterized in that, The oil return groove (201) is an annular groove structure arranged circumferentially around the exhaust port (100).

4. The static scroll assembly according to claim 1, characterized in that, The exhaust check gasket (15) has a through hole (150), the valve chamber (140) and the exhaust port (100) are connected through the through hole (150), and there are multiple oil passages (204), which are distributed circumferentially along the through hole (150).

5. The static scroll assembly according to claim 1, characterized in that, The exhaust check valve seat (14) has multiple refrigerant flow holes (203) on its opposite side walls, and the refrigerant flow holes (203) are connected to the valve cavity (140).

6. A scroll compressor, characterized in that, The scroll compressor has a static scroll assembly, which is the static scroll assembly according to any one of claims 1-5.

7. The scroll compressor according to claim 6, characterized in that, The static scroll assembly also includes: The oil return pipe (17) is connected at one end to the oil drain port (101) and at the other end to the oil sump of the scroll compressor.

8. The scroll compressor according to claim 7, characterized in that, The scroll compressor also includes a housing (5), and the stationary scroll (1) is disposed inside the housing (5). The outer peripheral surface of the stationary scroll (1) is provided with a groove structure (102). The groove structure (102) and the inner wall of the housing (5) form a refrigerant flow channel. Part of the oil return pipe (17) is located inside the groove structure (102).

9. An air conditioner, characterized in that, The air conditioner has a static scroll assembly, which is the static scroll assembly according to any one of claims 1-5.

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