A scroll compressor frame and scroll compressor

Abstract

The utility model relates to scroll compressor technical field especially, it relates to a rack for scroll compressor and scroll compressor, the structure of rack for scroll compressor includes the support part, forms annular, the top surface of support part forms the support surface, the support surface with the bottom surface of the movement scroll disc of scroll compressor is contacted, first oil groove is set up in the outer periphery side of support part, and a plurality of second oil grooves are set up in the top surface of support part, and the second oil groove is communicated with first oil groove. The rack for scroll compressor and scroll compressor can solve the problem that lubricating oil is difficult to stay on the support surface of the rack in the existing rack structure.

Description

Technical Field

[0001] This application relates to the field of scroll compressor technology, and in particular to a frame for a scroll compressor and a scroll compressor. Background Technology

[0002] During the operation of a scroll compressor, the crankshaft drives a moving scroll plate in planetary motion between the stationary scroll plate and the frame. The refrigerant oil gas in the intermediate pressure chamber flows through the space between the frame and the moving scroll plate into the compressor. Simultaneously, the moving scroll plate experiences friction against the support surface of the frame under gas pressure. To reduce wear and tear on the moving scroll plate and frame due to friction, lubrication grooves are typically provided on the frame.

[0003] However, in the existing frame structure, because the gas passage is located between the support surfaces, a large amount of oil in the lubricating oil groove will flow into the medium pressure chamber through the gas passage, which makes it difficult for the lubricating oil to remain on the support surface of the frame, greatly reducing the lubrication effect. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a frame for a scroll compressor and a scroll compressor, so as to solve the problem that lubricating oil is difficult to remain on the support surface of the frame in the existing frame structure.

[0005] According to a first aspect of the present invention, a frame for a scroll compressor is provided, wherein the frame for the scroll compressor includes: a support portion formed in an annular shape, the top surface of the support portion being formed as a support surface, the support surface contacting the bottom surface of the moving scroll disk of the scroll compressor; a first oil groove disposed on the outer periphery of the support portion; and a plurality of second oil grooves disposed on the top surface of the support portion, the second oil grooves being connected to the first oil grooves.

[0006] Preferably, the frame for the scroll compressor further includes an oil baffle ring, which surrounds the inner circumference of the support portion.

[0007] Preferably, a third oil groove is formed between the oil baffle ring and the support portion, and the second oil groove is connected to the third oil groove.

[0008] Preferably, the bottom surface of the second oil groove is higher than the bottom surface of the first oil groove, the bottom surface of the second oil groove is flush with the bottom surface of the third oil groove, and the top surface of the oil baffle ring is higher than the bottom surface of the third oil groove.

[0009] Preferably, a plurality of second oil grooves are arranged circumferentially at intervals on the top surface of the support, and the extending direction of the second oil grooves forms an angle with the radial direction of the support.

[0010] Preferably, the extension trajectory of the second oil groove is formed in an arc shape.

[0011] Preferably, the width of the second oil groove is 0.5 mm to 4 mm, and the depth of the second oil groove is 0.5 mm to 3 mm.

[0012] According to a second aspect of the present invention, a scroll compressor is provided, wherein the scroll compressor includes a moving scroll disk and a frame for a scroll compressor as described above, and the bottom surface of the moving scroll disk is in contact with the supporting surface of the frame for a scroll compressor.

[0013] Preferably, the scroll compressor further includes a gas passage, which is partially opened at the bottom of the moving scroll disk, and the gas passage connects the intermediate pressure chamber of the scroll compressor with the compression chamber of the scroll compressor.

[0014] Preferably, the gas passage includes: a main flow channel, the first end of which is located on the bottom surface of the moving scroll plate and connected to the intermediate pressure chamber, and the second end of which is located on the circumferential surface of the moving scroll plate; an upper flow channel, partially disposed between the circumferential surface of the moving scroll plate and the frame of the scroll compressor, the upper flow channel connecting the second end of the main flow channel to the compression chamber; and a lower flow channel, disposed between the circumferential surface of the moving scroll plate and the frame of the scroll compressor, the top end of the lower flow channel connecting to the bottom end of the upper flow channel, and the lower flow channel connecting the second end of the main flow channel to the first oil tank.

[0015] The scroll compressor frame and scroll compressor of this embodiment feature an annular support portion, eliminating the gas passage found in existing frame structures and preventing oil from flowing into the intermediate pressure chamber through the gas passage. A first oil groove is located on the outer periphery of the support portion for storing oil. Multiple second oil grooves are located on the top surface of the support portion and are connected to the first oil grooves. This allows the oil in the second oil grooves to be coated on the top surface of the support portion when the moving scroll rotates, reducing friction between the support portion and the moving scroll. The gas passage is located at the bottom of the moving scroll, connecting the intermediate pressure chamber and the compression chamber. This effectively solves the problem of lubricating oil being difficult to retain on the support surface of the frame in existing frame structures.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the frame for a scroll compressor according to the present invention.

[0019] Figure 2 This is a schematic diagram of the frame for the scroll compressor and a portion of the structure of the scroll compressor according to the present invention.

[0020] Reference numerals: 1-Supporting part; 10-Supporting surface; 2-First oil groove; 3-Second oil groove; 4-Oil retaining ring; 5-Third oil groove; 6-Moving vortex disk; 7-Intermediate pressure chamber; 8-Compression chamber; 9-Gas passage; 91-Main flow channel; 92-Upper flow channel; 93-Lower flow channel; 100-Anti-rotation slip ring groove. Detailed Implementation

[0021] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0022] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0023] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0024] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0025] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0026] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0027] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0028] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0029] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0030] like Figure 1 and Figure 2 As shown, according to a first aspect of the present invention, a frame for a scroll compressor is provided, the frame for the scroll compressor including a support portion 1, a first oil tank 2 and a second oil tank 3.

[0031] In the following description, reference will be made to Figure 1 and Figure 2 The specific structure of the aforementioned components of the frame used for the scroll compressor and the connection relationship of the aforementioned components are described in detail.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the support portion 1 can be formed as an annular shape to support the moving scroll plate 6 of the scroll compressor. The support portion 1 eliminates the gas passage portion of the existing frame structure, thereby preventing oil from directly flowing into the intermediate pressure chamber 7 through the gas passage. The top surface of the support portion 1 can be formed as a support surface 10, which contacts the bottom surface of the moving scroll plate 6 of the scroll compressor. A first oil groove 2 can be disposed on the outer periphery of the support portion 1 for storing oil. Multiple second oil grooves 3 can be disposed on the top surface of the support portion 1, i.e., the second oil grooves 3 are formed on the support surface 10. The second oil grooves 3 can communicate with the first oil grooves 2, allowing the oil in the first oil groove 2 to flow into the second oil grooves 3. When the moving scroll plate 6 rotates, the oil in the second oil grooves 3 can be coated on the top surface of the support portion 1, thereby reducing friction between the support portion 1 and the moving scroll plate 6.

[0033] Preferred, such as Figure 1 and Figure 2As shown, in this embodiment, the first oil groove 2 can be formed as an annular shape. The outer circumferential surface of the support portion 1 can be formed as the inner wall surface of the first oil groove 2, thereby reducing the distance between the first oil groove 2 and the support portion 1, so as to facilitate the flow of oil in the first oil groove 2 to the second oil groove 3 at the top of the support portion 1.

[0034] Preferred, such as Figure 1 and Figure 2 As shown, in this embodiment, the frame for the scroll compressor may further include an oil baffle ring 4. The oil baffle ring 4 may be formed in an annular shape and may be disposed around the inner circumference of the support portion 1 to restrict the flow of oil, so that the oil in the second oil groove 3 does not flow directly into the intermediate pressure chamber 7, thereby ensuring that the support surface 10 is completely immersed in the oil.

[0035] Furthermore, preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, the oil baffle ring 4, the first oil groove 2, and the support portion 1 can be arranged coaxially. The width of the support portion 1 can be greater than the width of the oil baffle ring 4 and the first oil groove 2, thereby ensuring the contact area between the support portion 1 and the moving scroll plate 6. The support portion 1 and the oil baffle ring 4 can be integrally formed with the frame body of the frame.

[0036] Further optimized, such as Figure 1 and Figure 2 As shown, in this embodiment, a gap may be provided between the oil-blocking ring 4 and the supporting part 1, so that a third oil groove 5 is formed between the oil-blocking ring 4 and the supporting part 1. The third oil groove 5 is formed in annular shape, and the second oil groove 3 can be connected to the third oil groove 5. This arrangement allows the oil overflowing from the second oil groove 3 to flow into the third oil groove 5 for storage, thereby further improving the utilization rate of the oil and making it easier for the supporting surface 10 to be completely immersed in the oil.

[0037] Preferred, such as Figure 1 and Figure 2 As shown, in this embodiment, the bottom surface of the second oil tank 3 is higher than the bottom surface of the first oil tank 2, making it easier for the oil in the second oil tank 3 to be coated onto the supporting surface 10. The bottom surface of the second oil tank 3 can be flush with the bottom surface of the third oil tank 5, making it easier for the supporting surface 10 to be completely immersed in the oil. The top surface of the oil baffle ring 4 is higher than the bottom surface of the third oil tank 5 to prevent the oil in the third oil tank 5 from flowing directly into the intermediate pressure chamber 7.

[0038] In addition, preferred, such as Figure 1As shown, in this embodiment, the width of the second oil tank 3 can be from 0.5mm to 4mm, and the depth of the second oil tank 3 can be from 0.5mm to 3mm. This configuration allows the supporting surface 10 to be well covered by the oil. In this embodiment, by eliminating the gas passage 9 section on the existing frame structure, the area of ​​the supporting surface 10 is increased (from 1830mm²). 2 Increased to 2454mm 2 (The contact area is increased by 34%), thereby effectively reducing the surface pressure at the contact points and alleviating wear between the frame and the moving scroll plate 6. Furthermore, in actual production, the frame of the scroll compressor can also be equipped with an anti-rotation slip ring groove 100 for installing an anti-rotation slip ring. The anti-rotation slip ring groove 100 can cut off a portion of the support part 1, the third oil groove 5, and the oil retaining ring 4.

[0039] Preferred, such as Figure 1 As shown, in this embodiment, a plurality of second oil grooves 3 can be arranged at equal intervals along the circumference of the top surface of the support portion 1, so that the oil can be uniformly coated on the support surface 10. The extending direction of the second oil groove 3 can form an angle with the radial direction of the support portion 1, thereby increasing the length of the second oil groove 3, making it easier for the oil in the second oil groove 3 to be coated on the support surface 10. More preferably, the extending trajectory of the second oil groove 3 can be formed in an arc shape, so that the second oil groove 3 forms an arc-shaped channel connecting the first oil groove 2 and the third oil groove 5. This arrangement further increases the length of the second oil groove 3, so that the rotating scroll 6 can uniformly coat the oil at various positions on the support surface 10 during rotation.

[0040] In addition, such as Figure 2 As shown, according to a second aspect of the present invention, a scroll compressor is provided, the scroll compressor including a moving scroll disk 6 and a frame for the scroll compressor as described above, wherein the bottom surface of the moving scroll disk 6 is in contact with the supporting surface 10 of the frame for the scroll compressor.

[0041] Preferred, such as Figure 2 As shown, in this embodiment, the scroll compressor further includes a gas passage 9. The gas passage 9 is partially located at the bottom of the moving scroll disk 6. The gas passage 9 connects the intermediate pressure chamber 7 of the scroll compressor with the compression chamber 8 of the scroll compressor, allowing refrigerant gas mixed with oil to flow from the intermediate pressure chamber 7 to the compression chamber 8.

[0042] Specifically, such as Figure 2As shown, in this embodiment, the gas passage 9 may include a main flow channel 91, an upper flow channel 92, and a lower flow channel 93. The first end of the main flow channel 91 may be formed on the bottom surface of the moving scroll plate 6, allowing the first end of the main flow channel 91 to connect to the intermediate pressure chamber 7. The second end of the main flow channel 91 may be formed on the circumferential surface of the moving scroll plate 6 (e.g., [missing information]). Figure 2 The right end face of the moving scroll plate 6 (as shown) ensures that the bottom surface of the moving scroll plate 6 remains in contact with the supporting surface 10. The upper flow channel 92 can be partially disposed between the circumferential surface of the moving scroll plate 6 and the frame of the scroll compressor. Figure 2 Only a portion of the upper flow channel 92 is shown. The upper flow channel 92 connects the second end of the main flow channel 91 to the compression chamber 8, allowing the refrigerant gas mixed with oil to flow into the compression chamber 8. The lower flow channel 93 can be disposed between the circumferential surface of the moving scroll plate 6 and the frame of the scroll compressor. The top end of the lower flow channel 93 connects to the bottom end of the upper flow channel 92. The lower flow channel 93 can extend vertically, and the first oil groove 2 can be disposed directly below the lower flow channel 93. The lower flow channel 93 connects the second end of the main flow channel 91 to the first oil groove 2. During the flow of the refrigerant gas mixed with oil into the compression chamber 8, some of the oil will sink and flow into the first oil groove 2 to lubricate the support surface 10. This arrangement can prevent the support surface 10 from being washed away by the refrigerant gas, thereby improving the adhesion of the oil on the support surface 10.

[0043] During use, the scroll compressor has changed the location of the gas passage 9, preventing the oil in the first oil tank 2 from flowing directly into the intermediate pressure chamber 7 via the gas passage 9, and also preventing the refrigerant gas from scouring the support surface 10. Additionally, multiple second oil tanks 3 are provided on the top surface of the support part 1, connected to the first oil tank 2, allowing the oil in the first oil tank 2 to flow into the second oil tanks 3. When the moving scroll plate 6 rotates, the oil in the second oil tanks 3 can be coated onto the top surface of the support part 1, thereby reducing friction between the support part 1 and the moving scroll plate 6.

[0044] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this 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 still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A frame for a scroll compressor, disposed on the scroll compressor, characterized in that, The frame for the scroll compressor includes: The support portion is formed in an annular shape, and the top surface of the support portion is formed as a support surface, which is in contact with the bottom surface of the moving scroll disk of the scroll compressor; A first oil groove is disposed on the outer periphery of the support portion; and Multiple second oil grooves are disposed on the top surface of the support portion, and the second oil grooves are connected to the first oil groove.

2. The frame for the scroll compressor according to claim 1, characterized in that, The frame for the scroll compressor also includes an oil baffle ring, which surrounds the inner circumference of the support portion.

3. The frame for the scroll compressor according to claim 2, characterized in that, A third oil groove is formed between the oil baffle ring and the support portion, and the second oil groove is connected to the third oil groove.

4. The frame for a scroll compressor according to claim 3, characterized in that, The bottom surface of the second oil tank is higher than the bottom surface of the first oil tank, the bottom surface of the second oil tank is flush with the bottom surface of the third oil tank, and the top surface of the oil baffle ring is higher than the bottom surface of the third oil tank.

5. The frame for a scroll compressor according to claim 1, characterized in that, A plurality of second oil grooves are arranged circumferentially at intervals on the top surface of the support, and the extending direction of the second oil grooves forms an angle with the radial direction of the support.

6. The frame for a scroll compressor according to claim 5, characterized in that, The extension trajectory of the second oil tank is arc-shaped.

7. The frame for a scroll compressor according to claim 1, characterized in that, The width of the second oil tank is 0.5mm to 4mm, and the depth of the second oil tank is 0.5mm to 3mm.

8. A scroll compressor, characterized in that, The scroll compressor includes a moving scroll disk and a frame for the scroll compressor according to any one of claims 1 to 7, wherein the bottom surface of the moving scroll disk is in contact with the supporting surface of the frame for the scroll compressor.

9. The scroll compressor according to claim 8, characterized in that, The scroll compressor also includes a gas passage, which is partially opened at the bottom of the moving scroll plate and connects the intermediate pressure chamber of the scroll compressor with the compression chamber of the scroll compressor.

10. The scroll compressor according to claim 9, characterized in that, The gas passage includes: The main channel has a first end located on the bottom surface of the moving vortex disk and is connected to the intermediate pressure cavity. The second end of the main channel is located on the circumferential surface of the moving vortex disk. The upper flow channel is partially disposed between the circumferential surface of the moving scroll plate and the frame of the scroll compressor, and the upper flow channel connects the second end of the main flow channel to the compression chamber; and The lower flow channel is disposed between the circumferential surface of the moving scroll plate and the frame of the scroll compressor. The top end of the lower flow channel is connected to the bottom end of the upper flow channel, and the lower flow channel is connected to the second end of the main flow channel and the first oil tank.

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