Flow guide structure and scroll compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a flow guide structure and a scroll compressor, the flow guide structure comprises a flow guide component which is installed inside a lower shell of the scroll compressor, the flow guide component is provided with an oil guide channel, and an oil discharge pipe of the scroll compressor can be inserted into the top end of the oil guide channel. And the bottom end of the oil guide channel is communicated with an oil pool of the scroll compressor. According to the flow guide structure and the scroll compressor, the problems of how to reduce the oil spitting rate of the scroll compressor and how to improve the oil foaming phenomenon can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the compressor technical field, especially to a guide structure and scroll compressor. BACKGROUND

[0002] The scroll compressor has the advantages of high efficiency, low noise, small vibration and reliable operation. The lubrication system plays a role in reducing the wear of moving parts and reducing friction work during normal operation of the compressor. The circulation of lubricating oil can carry away the heat and abrasion generated by friction and improve the working conditions of the friction surface. At the same time, the oil film also plays a sealing and sound absorbing role, so good lubrication conditions are an important guarantee for long-term reliable operation of the compressor.

[0003] At present, the lubrication system of most full-closed scroll compressors on the market adopts a pressure difference oil supply mode. Due to structural limitations, the oil return path of the lubrication system of the scroll compressor has not been well controlled, and the oil return has a large disturbance to the oil pool, resulting in a high oil discharge rate. In addition, due to the diversity of compressor lubricating oil, the foaming degree of different characteristic lubricating oils is different, and for compressors using the same structure and different lubricating oils, the oil foaming degree cannot be controlled, which affects the oil quantity determination and the reliability of the compressor. CONTENT OF THE INVENTION

[0004] Therefore, the purpose of the present application is to provide a guide structure and scroll compressor to solve the problems of how to reduce the oil discharge rate of the scroll compressor and improve the oil foaming phenomenon.

[0005] According to the first aspect of the present application, a guide structure is provided, wherein the guide structure comprises: a guide component installed inside a lower shell of the scroll compressor, the guide component is provided with a oil guide channel, an oil discharge pipe of the scroll compressor can be inserted into a top end of the oil guide channel, and a bottom end of the oil guide channel is communicated with an oil pool of the scroll compressor.

[0006] Preferably, the guide component is a guide plate, and the guide component is arranged along the arc of the lower shell from top to bottom.

[0007] Preferably, the guide component is at least partially structured to fit the inner wall of the lower shell, and the guide component and the inner wall of the lower shell form the oil guide channel.

[0008] Preferably, the cross section of the guide component is a U-shaped, and the guide component comprises: a convex plate part formed in the center of the guide plate, the oil guide channel is located between the convex plate part and the inner wall of the lower shell; and a bottom plate part arranged on both sides of the convex plate part, and the bottom plate part is connected with the inner wall of the lower shell.

[0009] Preferably, the lower end of the flow guide component is provided with an oil passage opening, which is communicated with the oil guide channel and is located on the side of the convex plate close to the bottom plate.

[0010] Preferably, the flow guide structure further comprises a plurality of magnetic attraction components, which are arranged uniformly in the circumferential direction inside the lower shell together with the flow guide component.

[0011] Preferably, the magnetic attraction component comprises a mounting frame connected to the inner wall of the lower shell and a magnet clamped in the mounting frame.

[0012] Preferably, the magnet is in a cylindrical structure, and the mounting frame comprises a top plate covering the top of the magnet, a bottom plate connected to the inner wall of the lower shell, and a side plate arranged perpendicularly to the top plate, the magnet being clamped between two oppositely arranged side plates, and the bottom plate being connected to the top plate through the side plate.

[0013] Preferably, the side edge of the top plate not connected to the side plate is formed with a downwardly bent limiting plate portion, which is buckled on the side edge of the magnet.

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

[0015] The flow guide structure and the scroll compressor according to the present application have the flow guide component installed inside the lower shell of the scroll compressor. The flow guide component is provided with an oil guide channel, the oil discharge pipe of the scroll compressor can be inserted into the top end of the oil guide channel, and the bottom end of the oil guide channel is communicated with the oil pool of the scroll compressor. In this way, the direct impact of the lubricating oil discharged from the oil guide channel on the entire oil pool can be avoided, and the splashing of the oil in the oil pool can be greatly improved, thereby reducing the oil discharge rate and improving the oil foaming phenomenon. In this way, the problem of how to reduce the oil discharge rate of the scroll compressor and improve the oil foaming phenomenon 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 described in detail below, and the accompanying drawings are described 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 1It is a schematic view of the scroll compressor according to the utility model.

[0019] Figure 2 It is a schematic view of the flow guide structure and the lower shell according to the utility model.

[0020] Figure 3 It is a sectional view of the flow guide structure and the lower shell according to the utility model.

[0021] Reference signs: 1-flow guide component; 10-oil guide channel; 11-protruding plate part; 110-oil passage; 12-bottom plate part; 2-mounting frame; 21-top plate; 210-limiting plate part; 22-bottom plate; 23-side plate; 3-scroll compressor; 30-oil pool; 31-oil discharge pipe; 32-lower shell. DETAILED DESCRIPTION

[0022] The following detailed description is provided to help the reader obtain a thorough understanding of the methods, devices, and / or systems described herein. However, the methods, devices, and / or systems described herein may be implemented in various ways, and the following detailed description is not intended to limit the methods, devices, and / or systems described herein to the ways described herein, but rather, in accordance with the disclosure, in many ways to implement the methods, devices, and / or systems described herein.

[0023] 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, devices, and / or systems to those skilled in the art, after a careful reading of the detailed description that follows.

[0024] Throughout the specification, when an element (such as a layer, region, or substrate) is referred to as being "on", "connected to", "coupled to", "bonds to", "on top of", or "covering" another element, it can be directly on, connected to, coupled to, bonds to, on top of, 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 bonds to", "directly on top of", or "directly covering" another element, there are no other elements interposed therebetween.

[0025] As used herein, the term "and / or" includes any one and any combination of the associated items.

[0026] Although terms such as "first", "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 in the examples described herein can also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

[0027] For ease of description, spatial relationship terms, such as "on", "upper", "under", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "upper" relative to another element would then be oriented "under" or "lower" relative to the other element. Accordingly, the term "on" encompasses both an "on" and "under" orientation based on the spatial orientation of the device. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and an appropriate re-interpretation of the spatial relationship terms used herein will be made.

[0028] 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 "contains", "containing" as used herein, list the presence of stated features, integers, operations, elements, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components and / or combinations thereof.

[0029] Variations in shapes depicted in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the specific shapes described herein but include variations in shapes that occur during manufacturing.

[0030] Features of the examples described herein can be combined with features of other examples in accordance with the disclosure, as would be apparent to one of ordinary skill in the art after having the benefit of the present disclosure. In addition, although a variety of examples have been described here, many variations are possible that would be apparent to one of ordinary skill in the art after having the benefit of the present disclosure.

[0031] As Figures 1 to 3As shown, according to the first aspect of the utility model provides a guide structure, the guide structure includes guide component 1.

[0032] In the following description, reference will be made to Figures 1 to 3 The specific structure of the above-mentioned components of the guide structure and the connection relationship of the above-mentioned components will be specifically described.

[0033] As Figures 1 to 3 As shown, in the embodiment, the oil pool 30 is arranged in the lower shell 32 of the scroll compressor 3. The bottom end of the oil discharge pipe 31 can extend into the lower shell 32 for discharging lubricating oil into the oil pool 30. The guide component 1 can be installed inside the lower shell 32 of the scroll compressor 3, and the guide component 1 can be provided with a guide oil passage 10. The oil discharge pipe 31 of the scroll compressor 3 can be inserted into the top end of the guide oil passage 10, and the bottom end of the guide oil passage 10 can be communicated with the oil pool 30 of the scroll compressor 3. In this way, the guide oil passage 10 can play a guide function. In addition, the lubricating oil discharged from the oil discharge pipe 31 will only impact the liquid surface in the guide oil passage 10, without affecting the entire liquid surface of the oil pool 30, thereby greatly improving the splashing of oil in the oil pool 30, thereby reducing the oil discharge rate of the scroll compressor 3 and improving the oil foaming phenomenon.

[0034] As Figure 1 As shown, in the embodiment, the refrigeration oil (i.e. lubricating oil) is in a gas-liquid mixed state during oil return, so that the lubricating oil discharged from the oil discharge pipe 31 will splash when impacting the liquid surface of the oil pool 30. Again, during operation of the scroll compressor 3, the rotor will continuously rotate to generate low pressure, so that the gaseous refrigeration oil will flow to the exhaust pipe through the gap of the parts, resulting in an increase in the oil discharge rate. The guide component 1 is used to construct the guide oil passage 10, which can further control the oil return path, improve the splashing of oil in the oil pool 30, reduce the gaseous oil flowing to the oil discharge pipe 31, and effectively reduce the oil discharge rate of the scroll compressor 3.

[0035] Preferably, as Figures 1 to 3 As shown, in the embodiment, the guide component 1 can be a guide plate. That is, the guide oil passage 10 can be constructed by surrounding the guide plate. The guide plate can be a whole plate or a plurality of plates connected together. The guide plate can be welded to the inner wall of the lower shell 32, so that the guide plate can be fixed in the lower shell 32. Preferably, the guide component 1 can be arranged along the arc of the inner wall of the lower shell 32 from top to bottom, so as to effectively utilize the internal space of the lower shell 32 and slow down the impact of the lubricating oil discharged from the oil discharge pipe 31 on the liquid surface of the oil pool 30.

[0036] Further, preferably, as Figures 1 to 3As shown, in this embodiment, at least a portion of the flow guiding component 1 is structurally fitted to the inner wall of the lower housing 32, so that the flow guiding component 1 and the inner wall of the lower housing 32 can form an oil guiding channel 10. The cross-section of the flow guiding component 1 can be Z-shaped, so that when the flow guiding component 1 is fastened to the inner wall of the lower housing 32, the oil drain pipe 31 can be inserted between the flow guiding component 1 and the inner wall of the lower housing 32.

[0037] Specifically, such as Figures 1 to 3 As shown, in this embodiment, the flow guiding component 1 may include a protruding plate portion 11 and a bottom plate portion 12. The protruding plate portion 11 may be formed in the center of the flow guiding plate, and the oil guiding channel 10 is located between the protruding plate portion 11 and the inner wall of the lower housing 32. The bottom plate portion 12 may be formed on both sides of the protruding plate portion 11 in the width direction. The bottom plate portion 12 is fitted to the inner wall of the lower housing 32. Preferably, the bottom plate portion 12 may be welded to the inner wall of the lower housing 32.

[0038] Preferred, such as Figures 1 to 3 As shown, in this embodiment, the top end of the oil guiding channel 10 is an oil inlet for the oil drain pipe 31 to pass through. In the oil guiding channel 10, the position of the port of the oil drain pipe 31 can be higher than the liquid level in the oil tank 30, meaning that the flow guiding component 1 can be used for flow guidance without extending the length of the oil drain pipe 31. Furthermore, surrounding the oil drain pipe 31 between the flow guiding component 1 and the inner wall of the lower shell 32 can reduce the noise generated when the oil drain pipe 31 drains oil. The lower end of the oil guiding channel 10 is an oil outlet for the oil to be discharged into the oil tank 30. In addition, an oil passage 110 can be provided at the lower end of the flow guiding component 1 to accelerate the entry of oil from the oil guiding channel 10 into the oil tank 30. The oil passage 110 can be a circular through hole opened at the lower end of the flow guiding component 1, and the oil passage 110 is connected to the oil guiding channel 10. Preferably, the oil inlet 110 can be provided on the side of the protruding plate portion 11 near the bottom plate portion 12 to increase the discharge efficiency of the oil in the guide member 1.

[0039] In addition, preferred, such as Figures 1 to 3 As shown in the embodiment, the flow guiding structure may further include multiple magnetic components for adsorbing impurities in the oil discharged from the flow guiding component 1. The multiple magnetic components can be evenly arranged with the flow guiding component 1 inside the lower shell 32. Specifically, as shown in the embodiment, the number of magnetic components can be three, and the three magnetic components are evenly distributed circumferentially within the lower shell 32 at 90° intervals with the flow guiding component 1.

[0040] Furthermore, preferably, such as Figures 1 to 3 and Figure 2 As shown, in this embodiment, the magnetic attraction component may include a mounting bracket 2 and a magnet (not shown). The mounting bracket 2 may be welded to the inner wall of the lower shell 32, and the magnet may be clipped onto the mounting bracket 2, thereby fixing the magnet in place.

[0041] Specifically, as shown in Figure 3 and Figure 2 , in the embodiment, the magnet can be a cylindrical structure. The mounting frame 2 can include a top plate 21, a side plate 23, and a bottom plate 22. Among them, the top plate 21 can cover the top of the magnet, thereby limiting the magnet in the vertical direction. The side plate 23 can be perpendicular to the top plate 21. The number of side plates 23 can be two, and the two side plates 23 can be respectively arranged at both ends of the length direction of the top plate 21. The magnet is clamped between the two oppositely arranged side plates 23 to limit the magnet in the horizontal direction. The bottom plate 22 can be connected to the top plate 21 through the side plate 23. The top end of the side plate 23 is connected to the top plate 21, and the bottom end of the side plate 23 is connected to the bottom plate 22. Preferably, the bottom plate 22 can be welded to the inner wall of the lower shell 32, and the top plate 21, the side plate 23 and the bottom plate 22 can be integrally formed.

[0042] Further preferably, as shown in Figure 3 and Figure 2 , in the embodiment, the side edge of the top plate 21 which is not connected with the side plate 23 (which can be the side edge in the width direction as shown in Figure 3 ) can be formed with a downwardly bent limiting plate portion 210. The limiting plate portion 210 can be bent at a right angle and buckled on the side edge of the magnet to further limit the magnet.

[0043] In addition, as shown in Figure 2 Figures 1 to 3 , according to the second aspect of the utility model, a scroll compressor 3 is provided, which comprises the flow guide structure as described above.

[0044] In use, without extending the length of the oil drain pipe 31, only the port of the oil drain pipe 31 can be inserted into the oil guide channel 10 to guide the flow. The number of flow guide structures corresponds to the number of oil drain pipes 31 of the scroll compressor 3. The flow guide structure can effectively reduce the impact of the discharged lubricating oil in the oil drain pipe 31 on the liquid level of the oil pool 30, greatly improving the splashing of oil in the oil pool 30, thereby reducing the oil discharge rate of the scroll compressor 3 and improving the oil foaming phenomenon.

[0045] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any skilled person in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The 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 flow guide structure provided in a scroll compressor, characterized by, The flow guiding structure includes: A flow guiding component is installed inside the lower housing of the scroll compressor. The flow guiding component is provided with an oil guiding channel. The oil discharge pipe of the scroll compressor can be inserted into the top end of the oil guiding channel. The bottom end of the oil guiding channel is connected to the oil sump of the scroll compressor.

2. The flow guiding structure of claim 1, wherein, The flow guiding component is a flow guiding plate, which is arranged along the arc of the lower shell from top to bottom.

3. The flow guiding structure of claim 2, wherein, The flow guiding component is at least partially attached to the inner wall of the lower shell, and the flow guiding component and the inner wall of the lower shell form the oil guiding channel.

4. The flow guiding structure of claim 3, wherein, The cross-section of the flow guiding component is Z-shaped, and the flow guiding component includes: A protruding plate portion is formed in the center of the guide plate, and the oil guiding channel is located between the protruding plate portion and the inner wall of the lower housing; and The bottom plate is disposed on both sides of the protruding plate and is connected to the inner wall of the lower shell.

5. The flow guiding structure of claim 4, wherein, The lower end of the flow guide component is provided with an oil inlet, which is connected to the oil guide channel and is located on the side of the protruding plate near the bottom plate.

6. The flow guide structure of claim 1, wherein, The flow guiding structure also includes multiple magnetic suction components, which are evenly arranged circumferentially inside the lower shell along with the flow guiding components.

7. The flow guiding structure of claim 6, wherein, The magnetic component includes a mounting bracket and a magnet. The mounting bracket is connected to the inner wall of the lower shell, and the magnet is engaged with the mounting bracket.

8. The flow guiding structure of claim 7, wherein, The magnet has a cylindrical structure, and the mounting bracket includes: A top plate, covering the top of the magnet; A base plate, connected to the inner wall of the lower shell; and The side plates are arranged perpendicular to the top plate, and the magnet is sandwiched between two oppositely arranged side plates. The bottom plate is connected to the top plate through the side plates.

9. The flow guiding structure of claim 8, wherein, The top plate has a downwardly bent limiting plate portion on the side not connected to the side plate, and the limiting plate portion is fastened to the side of the magnet.

10. A scroll compressor characterized by, The scroll compressor includes the flow guiding structure as described in any one of claims 1 to 9.

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