Scroll compressor structure and scroll compressor

Abstract

The invention relates to the technical field of scroll compressors, in particular to a scroll compressor structure and a scroll compressor, the scroll compressor structure comprises a fin assembly and an upper shell arranged on the scroll compressor, and the fin assembly is at least partially located in the upper shell; the oil guide plate is arranged in the upper shell, the oil guide plate is arranged below the fin assembly, a plurality of refrigerant circulating holes are formed in the oil guide plate, and an oil collecting opening is formed in the oil guide plate; the top end of the upper shell oil discharging pipe is communicated with the oil collecting opening, and the bottom end of the upper shell oil discharging pipe is communicated with an oil pool of the scroll compressor. According to the scroll compressor structure and the scroll compressor, the problem of how to reduce the oil output of the scroll compressor and the temperature rise of the motor can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scroll compressors, in particular to a scroll compressor structure and a scroll compressor. BACKGROUND

[0002] Scroll compressors are widely used in refrigeration systems due to their large refrigeration capacity and small vibration. Currently, as the rotation speed of scroll compressors increases, the flow rate of refrigerant in the compressor also increases sharply, resulting in increased suction overheating loss and oil discharge of the compressor. At the same time, the increase in rotation speed also causes a sharp increase in the heat generation of the motor, which may lead to high-temperature demagnetization of the motor. Therefore, how to reduce the temperature rise of the motor and the oil discharge of the compressor while increasing the rotation speed of the compressor has become a hot issue in the industry.

[0003] In the traditional layout of the compressor, the motor is usually cooled by refrigerant flushing. In terms of oil discharge, oil separation is achieved by rotating the refrigerant driven by the rotation of the crankshaft and the balance block of the compressor. However, with further increase in the rotation speed of the compressor, the above-mentioned traditional scheme is difficult to effectively reduce the oil discharge and the temperature rise of the motor. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a scroll compressor structure and a scroll compressor to solve the problem of how to reduce the oil discharge and the temperature rise of the motor of the scroll compressor.

[0005] According to a first aspect of the present application, a scroll compressor structure is provided, wherein the scroll compressor structure comprises: a fin assembly arranged in an upper shell of the scroll compressor, the fin assembly being at least partially located inside the upper shell; an oil guide plate arranged inside the upper shell, the oil guide plate being arranged below the fin assembly, the oil guide plate being provided with a plurality of refrigerant flow holes, and the oil guide plate being provided with an oil collection port; and an upper shell oil discharge pipe, a top end of the upper shell oil discharge pipe being communicated with the oil collection port, and a bottom end of the upper shell oil discharge pipe being communicated with an oil pool of the scroll compressor.

[0006] Preferably, the fin assembly comprises: a plurality of inner fins arranged at the top of the upper shell in a circumferential interval, the inner fins protruding from the inner surface of the upper shell; and a plurality of outer fins arranged at the top of the upper shell in a circumferential interval, the outer fins protruding from the outer surface of the upper shell.

[0007] Preferably, the plurality of inner fins and the plurality of outer fins are arranged one-to-one, and the number of the inner fins is not less than 8.

[0008] Preferably, the plurality of refrigerant flow holes comprises: a refrigerant inlet hole arranged at a middle portion of the oil guide plate, the refrigerant inlet hole being located directly above an exhaust port of a fixed scroll plate of the scroll compressor; and a refrigerant outlet hole arranged at an edge of the oil guide plate.

[0009] Preferably, the refrigerant outlet hole is in a plurality, the plurality of refrigerant outlet holes being arranged at an outer periphery of the refrigerant inlet hole at intervals, edges of the refrigerant inlet hole and the refrigerant outlet hole being provided with a raised edge portion protruding above a top surface of the oil guide plate.

[0010] Preferably, an outer periphery of the oil guide plate is connected to an inner surface of the upper shell, the oil guide plate is arranged with a first end to a second end inclined from high to low, the oil collection port is arranged at the second end of the oil guide plate, and an inclination angle of the oil guide plate is ≤15°.

[0011] Preferably, a bottom portion of the oil guide plate is formed with a wall plate portion extending in a vertical direction, the wall plate portion and an inner wall of the upper shell enclose an oil collection cavity, the oil collection port is an upper port of the oil collection cavity, a top end of the upper shell oil discharge pipe is connected to a lower port of the oil collection cavity, and an airflow baffle is arranged in the oil collection cavity, the airflow baffle being provided with a plurality of mesh holes.

[0012] Preferably, a bottom end of the upper shell oil discharge pipe is connected to a rack oil discharge pipe of the scroll compressor, a top end of the rack oil discharge pipe is connected to a medium-pressure cavity of the scroll compressor, and a bottom end of the rack oil discharge pipe is connected to the oil pool.

[0013] Preferably, the scroll compressor structure further comprises a heat-insulating suction pipe, the heat-insulating suction pipe being arranged through the upper shell, the oil guide plate being provided with a through hole, the heat-insulating suction pipe being arranged through the through hole, a bottom end of the heat-insulating suction pipe being connected to a suction port of the fixed scroll plate of the scroll compressor, the fin assembly avoiding the heat-insulating suction pipe, the heat-insulating suction pipe being provided with an inner pipe wall and an outer pipe wall, and a heat-insulating layer being arranged between the inner pipe wall and the outer pipe wall.

[0014] According to a second aspect of the present application, a scroll compressor is provided, wherein the scroll compressor comprises the scroll compressor structure as described above.

[0015] The fin assembly of the scroll compressor structure and the scroll compressor are arranged on the upper shell of the scroll compressor, and the fin assembly is at least partially located inside the upper shell. The oil guide plate is arranged inside the upper shell and below the fin assembly. The oil guide plate is provided with a plurality of refrigerant flow holes for the refrigerant gas flow carrying the lubricating oil droplets to pass through. After passing through the oil guide plate, the refrigerant gas flow will contact the fin assembly. In the process, the oil guide plate and the fin assembly enhance the turbulence of the refrigerant gas flow, reduce the flow rate of the refrigerant gas flow, and thus improve the heat transfer coefficient of the refrigerant gas flow, and alleviate the problem of reduced separation effect caused by too short working time of other oil separation mechanisms. In addition, the fin assembly increases the heat exchange area of the refrigerant gas flow, further reduces the temperature of the refrigerant gas flow, and thus can improve the cooling effect of the refrigerant gas flow on the motor. At the same time, in the process of contacting the fin assembly, the lubricating oil droplets can be separated from the refrigerant gas flow and fall along the fin assembly to the upper surface of the oil guide plate. The oil guide plate is provided with an oil collecting port for collecting the separated lubricating oil droplets. The top end of the upper shell oil discharge pipe is communicated with the oil collecting port, and the bottom end of the upper shell oil discharge pipe is communicated with the oil pool of the scroll compressor, so that the lubricating oil droplets can return to the oil pool. In this way, the problems of how to reduce the oil discharge amount and the motor temperature rise of the scroll compressor can be effectively solved.

[0016] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a schematic view of a scroll compressor according to the present application.

[0019] Figure 2 is a schematic view of a part of a scroll compressor structure according to the present application.

[0020] Figure 3 is a sectional view of a scroll compressor structure according to the present application.

[0021] Figure 4 is a bottom view of a scroll compressor structure according to the present application.

[0022] Figure 5 is a schematic view of the inside of a scroll compressor structure according to the present application.

[0023] Figure 6 is a schematic view of a heat-insulated suction pipe of a scroll compressor structure according to the present application.

[0024] Reference numeral: 1 - fin assembly; 11 - inner fin; 12 - outer fin; 2 - oil guide plate; 20 - oil collecting port; 21 - refrigerant inlet hole; 22 - refrigerant outlet hole; 23 - convex edge portion; 24 - wall plate portion; 25 - oil collecting cavity; 26 - air flow baffle; 27 - mesh hole; 28 - via hole; 3 - upper case oil discharge pipe; 31 - frame oil discharge pipe; 41 - upper case; 42 - pipe case; 43 - lower case; 5 - fixed scroll; 50 - discharge port; 51 - suction port; 6 - frame; 7 - motor; 8 - heat-insulated suction pipe; 81 - inner layer pipe wall; 82 - outer layer pipe wall; 83 - heat-insulating layer. DETAILED DESCRIPTION

[0025] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the precise construction described. Rather, various changes, modifications, and equivalents can be resorted to as will be apparent to those skilled in the art in light of the disclosure herein. For example, the order of the operations can be changed to resorted to, except for operations that must occur in a specific order. Also, features not described herein can be added to the method, apparatus and / or system described herein. Furthermore, to the extent that the terms "comprises", "comprising", "includes", "including" and / or "has", "having" are used in the detailed description and / or claims, such terms are intended to be inclusive in a manner that the term does not exclude additional unrecited elements or method steps.

[0026] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples have been provided so that this disclosure will be thorough and complete, and will fully convey the scope of the methods, apparatus and / or systems described herein to those skilled in the art. Further, the description should not be construed to limit the methods, apparatus and / or systems described herein to only those examples that can be described in the detailed description and accompanying drawings.

[0027] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, or "covering" another element, it can be directly on, connected, coupled, adjacent to or covering the other element or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", "directly coupled to", "directly adjacent to", or "directly covering" another element, there are no other elements interposed therebetween.

[0028] As used herein, the term "and / or" includes any and all combinations of one or more of the associated items.

[0029] Although terms such as "first" and "second" and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, elements, components, regions, layers and / or sections referred to as a first element, component, region, layer or section herein can also be referred to using other terms such as a second element, component, region, layer or section without departing from the teachings of the examples.

[0030] For ease of description, spatial terms such as "on", "upper", "below", and "lower" can be used with respect to the orientation of one element relative to another element as illustrated in the figures. Such spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then a component described as on or above other components would then be oriented on or below the other components. Accordingly, the term "on" encompasses both an "on" and "under" orientation in accordance with how the device is oriented in space. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatial terms used herein interpreted accordingly.

[0031] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of examples. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" and the like are inclusive of the stated features, numbers, operations, components, elements and / or the like, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements and / or the like.

[0032] Variations in shapes depicted in the figures can occur as a consequence of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes shown in the figures, but include variations in shapes that would occur to one of ordinary skill in the art upon reading this disclosure.

[0033] Features of the examples described herein can be combined with features of other examples in accordance with the disclosure. In addition, although various examples have been described herein, it will be apparent to those of ordinary skill in the art that many modifications, combinations, sub-combinations and variations of examples can be made.

[0034] As Figures 1 to 6As shown, according to a first aspect of the present invention, a scroll compressor structure is provided, the scroll compressor structure including a fin assembly 1, an oil guide plate 2, and an upper shell oil drain pipe 3.

[0035] In the following description, reference will be made to Figures 1 to 6 The specific structure of the aforementioned components and their connection relationships are described in detail.

[0036] like Figures 1 to 6 As shown, in this embodiment, the fin assembly 1 is disposed on the upper shell 41 of the scroll compressor. The fin assembly 1 is at least partially located inside the upper shell 41. The oil guide plate 2 is also disposed inside the upper shell 41, and is positioned below the fin assembly 1. The oil guide plate 2 may be provided with multiple refrigerant flow holes for the refrigerant airflow carrying lubricating oil droplets to pass through. After passing through the oil guide plate 2, the refrigerant airflow comes into contact with the fin assembly 1. During this process, the oil guide plate 2 and the fin assembly 1 enhance the turbulence of the refrigerant airflow, reduce the refrigerant airflow velocity, thereby improving the heat transfer coefficient of the refrigerant airflow and alleviating the problem of reduced separation effect caused by the short working time of other oil separation mechanisms. In addition, the fin assembly 1 increases the heat exchange area of ​​the refrigerant airflow, further reducing the refrigerant temperature, thereby improving the cooling effect of the refrigerant airflow on the motor 7. Simultaneously, during the contact between the refrigerant airflow and the fin assembly 1, lubricating oil droplets can separate from the refrigerant airflow and drip down the fin assembly 1 onto the upper surface of the oil guide plate 2. The oil guide plate 2 is equipped with an oil collection port 20 to collect the separated lubricating oil droplets. The top end of the upper shell oil drain pipe 3 is connected to the oil collection port 20, and the bottom end of the upper shell oil drain pipe 3 is connected to the oil sump of the scroll compressor, allowing the lubricating oil droplets to return to the oil sump.

[0037] Preferred, such as Figures 1 to 5 As shown, in this embodiment, the fin assembly 1 may include multiple inner fins 11 and multiple outer fins 12. The multiple inner fins 11 are circumferentially spaced on the top of the upper shell 41, protruding from the inner surface of the upper shell 41 to contact the refrigerant flow. A gap is provided between the bottom end of each inner fin 11 and the oil guide plate 2, and a hemispherical cavity is formed around the center of the multiple inner fins 11 (i.e., the outlines of the inner edges of the multiple inner fins 11 collectively form a hemispherical shape) to avoid excessive flow loss or the creation of flow dead zones. The multiple outer fins 12 are circumferentially spaced on the top of the upper shell 41, protruding from the outer surface of the upper shell 41 to exchange heat with the outside environment. The outlines of the outer edges of the multiple outer fins 12 collectively form a hemispherical shape, which increases the heat exchange area of ​​the outer fins 12.

[0038] Furthermore, preferably, such as Figures 2 to 5As shown, in the embodiment, the plurality of inner fins 11 and the plurality of outer fins 12 can be arranged in one-to-one correspondence. That is, the number of inner fins 11 is equal to the number of outer fins 12, and the arrangement positions of the inner fins 11 and the outer fins 12 are aligned in the radial direction of the scroll compressor. In this way, heat transfer between the inner fins 11 and the outer fins 12 is facilitated, and the heat exchange effect of the fin assembly 1 can be improved. The inner fins 11 and the outer fins 12 can be welded to the upper shell 41 of the scroll compressor. Further preferably, the number of inner fins 11 can be no less than 8 (in which case, the number of outer fins 12 is also no less than 8), and in this way, the flow disturbance effect and the heat exchange effect of the fin assembly 1 can be ensured.

[0039] Preferably, as Figures 1 to 5 As shown, in the embodiment, the oil guide plate 2 can be approximately a circular plate, and the outer periphery of the oil guide plate 2 can be welded to the inner surface of the upper shell 41. The oil guide plate 2 is arranged at the upper portion of the fixed scroll 5 of the scroll compressor, and the oil guide plate 2 is provided with a plurality of refrigerant flow-through holes. The plurality of refrigerant flow-through holes can include a refrigerant inlet hole 21 and a refrigerant outlet hole 22. The refrigerant inlet hole 21 can be arranged at the middle portion of the oil guide plate 2, and the refrigerant inlet hole 21 is located directly above the exhaust port 50 of the fixed scroll 5, so as to facilitate the flow of refrigerant gas through the oil guide plate 2. As Figure 3 As shown, the refrigerant gas flow that passes through the oil guide plate 2 from the refrigerant inlet hole 21 flows in the outward direction from the center to the periphery of the upper shell 41 under the guiding action after flowing through the inner fins 11, and finally reaches the edge of the oil guide plate 2. The refrigerant outlet hole 22 can be arranged at the edge of the oil guide plate 2, so as to facilitate the flow of refrigerant gas through the oil guide plate 2.

[0040] Preferably, as Figure 4 As shown, in the embodiment, the refrigerant outlet hole 22 can be approximately semicircular in shape, and the center of the refrigerant outlet hole 22 can be located at the edge of the oil guide plate 2. In this way, the flow path of the refrigerant gas flow can be corresponded to, and the flow of refrigerant gas through the oil guide plate 2 can be facilitated. In addition, preferably, the inner fins 11 can avoid the refrigerant outlet hole 22, that is, no inner fins 11 are arranged within a certain range directly above the refrigerant outlet hole 22, and in this way, the dripping of lubricating oil droplets from the refrigerant outlet hole 22 during the flow along the surface of the inner fins 11 can be avoided.

[0041] Further preferably, as Figures 3 to 5As shown, in this embodiment, the number of refrigerant vent holes 22 can be multiple, that is, no less than two, to ensure the discharge speed of the refrigerant airflow. Multiple refrigerant vent holes 22 can be spaced apart from each other on the outer periphery of the refrigerant inlet hole 21. Furthermore, the edges of the refrigerant inlet hole 21 and the edges of the refrigerant vent holes 22 can also be provided with raised edges 23. The raised edges 23 protrude from the upper surface of the oil guide plate 2 to prevent lubricating oil droplets from dripping from the refrigerant vent holes 22 or the refrigerant inlet hole 21 as they flow along the upper surface of the oil guide plate 2.

[0042] Preferred, such as Figure 3 As shown, in this embodiment, the oil guide plate 2 can be inclinedly disposed within the upper housing 41. Specifically, the first end of the oil guide plate 2 (e.g., Figure 3 From the right end shown to the second end (as shown) Figure 3 The left end (as shown) can be inclined from high to low. The oil collection port 20 is located at the second end of the oil guide plate 2, so that the lubricating oil droplets flowing on the upper surface of the oil guide plate 2 can converge at the oil collection port 20. Further, preferably, the inclination angle of the oil guide plate 2 is ≤15° (that is, the angle between the line connecting the first end and the second end of the oil guide plate 2 and the horizontal plane is ≤15°). This arrangement is beneficial for the lubricating oil to flow to the oil collection port 20 and can avoid interference with other structures due to the excessive inclination angle of the oil guide plate 2.

[0043] Further optimized, such as Figure 3 and Figure 4 As shown, in this embodiment, the bottom of the oil guide plate 2 may have a vertically extending wall plate portion 24, which, together with the inner wall of the upper shell 41, forms a tubular oil collecting cavity 25. The oil collecting port 20 is the upper port of the oil collecting cavity 25, and the top end of the upper shell oil drain pipe 3 is connected to the lower port of the oil collecting cavity 25, allowing lubricating oil droplets to flow into the upper shell oil drain pipe 3. Further, preferably, an airflow baffle 26 may also be provided in the oil collecting cavity 25. The airflow baffle 26 is positioned below the upper surface of the wall plate portion 24 and above the top end of the upper shell oil drain pipe 3. The airflow baffle 26 is arranged horizontally and has multiple mesh holes 27 for lubricating oil droplets to pass through. This arrangement effectively prevents refrigerant airflow from entering the upper shell oil drain pipe 3 from the oil collecting cavity 25.

[0044] Preferred, such as Figure 1As shown in the embodiment, the bottom end of the upper shell oil discharge pipe 3 can be communicated with the rack oil discharge pipe 31 of the scroll compressor. Specifically, the top end of the rack oil discharge pipe 31 can be radially inserted into the rack 6 and communicated with the medium pressure cavity of the scroll compressor. The rack oil discharge pipe 31 extends in the vertical direction within the pipe shell 42, and the bottom end thereof is communicated with the oil pool in the lower shell 43 to guide the oil in the medium pressure cavity into the oil pool. The upper shell oil discharge pipe 3 can be arranged directly above the rack oil discharge pipe 31, and the bottom end of the upper shell oil discharge pipe 3 is communicated with the rack oil discharge pipe 31. In this way, the length of the upper shell oil discharge pipe 3 can be shortened to reduce the production cost.

[0045] In addition, preferably, as shown in Figure 1 and Figure 5 As shown in the embodiment, the scroll compressor structure can further include a heat insulation suction pipe 8. The heat insulation suction pipe 8 can be vertically arranged through the upper shell 41 and the oil guide plate 2. The oil guide plate 2 can be provided with a through hole 28, and the heat insulation suction pipe 8 is arranged through the through hole 28. The fin assembly 1 avoids the heat insulation suction pipe 8. The top end of the heat insulation suction pipe 8 extends to the outside of the upper shell 41, and the bottom end thereof is communicated with the suction port 51 of the fixed scroll 5 of the scroll compressor. The heat insulation suction pipe 8 is provided with an inner pipe wall 81 and an outer pipe wall 82, which can be integrally formed. A heat insulation layer 83 is arranged between the inner pipe wall 81 and the outer pipe wall 82. The heat insulation layer 83 can be filled with air or heat insulation material (e.g., asbestos). In this way, the heat loss of the refrigerant gas flow when flowing through the heat insulation suction pipe 8 can be reduced, and the high-temperature gas in the upper shell 41 is prevented from directly exchanging heat with the refrigerant gas flow in the heat insulation suction pipe 8, thereby reducing the suction overheating loss.

[0046] In addition, as shown in Figure 1 According to the second aspect of the present application, a scroll compressor is provided, which includes the scroll compressor structure as described above.

[0047] During use, the refrigerant is sucked into the scroll compressor by the heat-insulated suction pipe 8, and in the process, the heat-insulated suction pipe 8 can reduce the suction overheating loss. After compression, the refrigerant gas flow is discharged from the exhaust port 50 of the fixed scroll plate 5, and passes through the refrigerant inlet hole 21 of the oil guide plate 2, and then the refrigerant gas flow contacts the fin assembly 1. The oil guide plate 2 and the fin assembly 1 enhance the disturbance to the refrigerant gas flow, reduce the flow rate of the refrigerant gas flow, thereby increasing the heat transfer coefficient of the refrigerant gas flow, and alleviating the problem of reduced separation effect caused by too short working time of other oil separation mechanisms. In addition, the fin assembly 1 increases the heat exchange area of the refrigerant gas flow, further reduces the refrigerant temperature, thereby being able to improve the cooling effect of the refrigerant gas flow on the motor 7. At the same time, in the process of contacting the fin assembly 1, the lubricating oil droplets can be separated from the refrigerant gas flow and fall along the fin assembly 1 to the upper surface of the oil guide plate 2. The oil guide plate 2 is provided with an oil collecting port 20 for collecting the separated lubricating oil droplets. The top end of the upper shell oil discharge pipe 3 is communicated with the oil collecting port 20, and the bottom end of the upper shell oil discharge pipe 3 is communicated with the oil pool of the scroll compressor, so that the lubricating oil droplets can return to the oil pool. The refrigerant gas flow is discharged through the refrigerant outlet hole 22 under the guidance of the inner fin 11, and flows through the flow-through hole between the motor 7 and the shell 42, and then flows out from the exhaust pipe to the condenser for further condensation and heat dissipation. Part of the refrigerant gas flow flows through the motor 7 to cool the motor 7.

[0048] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present application, which are used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can make modifications or easily think of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed by the present application, or make equivalent replacements to some of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A scroll compressor structure, disposed in a scroll compressor, characterized in that, The scroll compressor structure includes: A fin assembly is disposed on the upper housing of the scroll compressor, and the fin assembly is at least partially located inside the upper housing; An oil guide plate, disposed inside the upper housing, is located below the fin assembly. The oil guide plate has multiple refrigerant flow holes and an oil collection port. The upper shell oil drain pipe has its top end connected to the oil collection port and its bottom end connected to the oil sump of the scroll compressor.

2. The scroll compressor structure according to claim 1, characterized in that, The fin assembly includes: Multiple inner fins are circumferentially spaced at the top of the upper shell, the inner fins protruding from the inner surface of the upper shell; and Multiple outer fins are arranged circumferentially at intervals on the top of the upper shell, and the outer fins protrude from the outer surface of the upper shell.

3. The scroll compressor structure according to claim 2, characterized in that, The plurality of inner fins are arranged in a one-to-one correspondence with the plurality of outer fins, and the number of inner fins is not less than 8.

4. The scroll compressor structure according to claim 1, characterized in that, The plurality of refrigerant flow holes include: A refrigerant inlet is located in the middle of the oil guide plate, directly above the exhaust port of the fixed scroll plate of the scroll compressor; and The refrigerant vent is located at the edge of the oil guide plate.

5. The scroll compressor structure according to claim 4, characterized in that, The number of refrigerant vent holes is multiple, and the multiple refrigerant vent holes are arranged at intervals around the outer periphery of the refrigerant inlet hole. The edges of the refrigerant inlet hole and the edges of the refrigerant vent holes are provided with raised edges, which protrude from the upper surface of the oil guide plate.

6. The scroll compressor structure according to claim 1, characterized in that, The outer periphery of the oil guide plate is connected to the inner surface of the upper shell. The first end of the oil guide plate is inclined from high to low from the second end. The oil collection port is located at the second end of the oil guide plate. The inclination angle of the oil guide plate is ≤15°.

7. The scroll compressor structure according to claim 1, characterized in that, The bottom of the oil guide plate has a wall plate extending vertically. The wall plate and the inner wall of the upper shell surround each other to form an oil collecting cavity. The oil collecting port is the upper port of the oil collecting cavity. The top end of the oil drain pipe of the upper shell is connected to the lower port of the oil collecting cavity. An airflow baffle is provided in the oil collecting cavity. The airflow baffle is provided with multiple mesh holes.

8. The scroll compressor structure according to claim 1, characterized in that, The bottom end of the upper shell oil drain pipe is connected to the frame oil drain pipe of the scroll compressor, the top end of the frame oil drain pipe is connected to the intermediate pressure chamber of the scroll compressor, and the bottom end of the frame oil drain pipe is connected to the oil sump.

9. The scroll compressor structure according to claim 1, characterized in that, The scroll compressor structure also includes a heat-insulated suction pipe, which passes through the upper shell. The oil guide plate is provided with a through hole, through which the heat-insulated suction pipe passes. The bottom end of the heat-insulated suction pipe is connected to the suction port of the fixed scroll plate of the scroll compressor. The fin assembly avoids the heat-insulated suction pipe. The heat-insulated suction pipe is provided with an inner tube wall and an outer tube wall, and a heat insulation layer is formed between the inner tube wall and the outer tube wall.

10. A scroll compressor, characterized in that, The scroll compressor includes the scroll compressor structure according to any one of claims 1 to 9.

Images