Fixed scroll structure and scroll compressor

Abstract

The present application relates to the technical field of compressors. Disclosed are a fixed scroll structure and a scroll compressor. The fixed scroll structure comprises a fixed scroll and a wear-resistant plate. The fixed scroll has a first disk surface configured to be fittingly assembled with an orbiting scroll. A first friction zone is formed on the first disk surface. Corresponding to the first friction zone, the wear-resistant plate is arranged on the first disk surface, and at least part of the wear-resistant plate is disposed in the first friction zone.

Description

Static scroll structure and scroll compressor

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202510091782.2, filed on January 20, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of compressor technology, and in particular to a static scroll structure and a scroll compressor. Background Technology

[0004] Currently, scroll compressors consist of a stationary scroll, a moving scroll, and a crankshaft. The moving scroll is mounted on the crankshaft and is assembled with the stationary scroll, allowing it to move relative to it. During operation, the crankshaft undergoes eccentric motion, while the moving scroll revolves, thus realizing the compressor's intake, compression, and exhaust processes. After assembly, the stationary and moving scrolls come into contact. During compressor operation, the surfaces of the moving and stationary scrolls press and rub against each other to seal the chamber. This pressing and friction between the moving and stationary scroll surfaces easily leads to abnormal wear. Therefore, an oil groove structure is typically provided on the stationary scroll surface, and oil is supplied to the oil groove through an oil supply hole on the moving scroll surface. The rotation of the moving scroll then lubricates the surfaces of the moving and stationary scrolls. However, this lubrication structure provides some improvement for compressors operating at low frequencies (operating frequency less than or equal to 120Hz), but for compressors operating at high frequencies (operating frequency greater than 120Hz), the disc surface will still experience severe abnormal wear. Summary of the Invention

[0005] The main objective of this application is to propose a static scroll structure and a scroll compressor, which aims to address the problem of abnormal wear that may occur in existing compressors during high-frequency operation.

[0006] To achieve the above objectives, the static vortex disk structure proposed in this application includes:

[0007] A stationary scroll plate has a first surface for mating with a moving scroll plate. A first friction zone is formed on the first surface. Corresponding to the first friction zone, the stationary scroll plate is used for intermittent relative mating with the moving scroll plate.

[0008] A wear-resistant pad is disposed on the first disc surface and is at least partially located within the first friction zone.

[0009] In one embodiment, the first surface of the static vortex disk is provided with a mounting groove, and the wear-resistant sheet is disposed in the mounting groove.

[0010] In an embodiment, the mounting groove is annularly arranged, and has an outer sidewall in the radial direction of the static scroll plate, the outer sidewall being arranged at the outer boundary of the first friction zone.

[0011] In an embodiment, the static scroll plate structure further comprises a limiting structure arranged between the wear-resistant sheet and the mounting groove, for limiting rotation of the wear-resistant sheet.

[0012] In an embodiment, the limiting structure comprises a limiting protrusion and a matching groove which are matched with each other, one of the limiting protrusion and the matching groove being arranged on the wear-resistant sheet, and the other being arranged on the sidewall of the mounting groove.

[0013] In an embodiment, the depth of the mounting groove is H, and the thickness of the wear-resistant sheet is D1, wherein 0.015mm≤D1-H≤0.035mm.

[0014] In an embodiment, the first disc surface of the static scroll plate is further formed with a second friction zone in the first friction zone, the second friction zone being arranged to always match the dynamic scroll plate.

[0015] The first disc surface is provided with an oil groove in the second friction zone.

[0016] In an embodiment, the static scroll plate is provided with a mounting groove, the wear-resistant sheet is arranged in the mounting groove, and the mounting groove has an inner sidewall and an outer sidewall in the radial direction of the static scroll plate, wherein:

[0017] The inner sidewall is arranged in a spaced manner with the inner periphery of the wear-resistant sheet, and the oil groove is defined between the inner sidewall and the wear-resistant sheet; and / or,

[0018] The outer sidewall is arranged in a spaced manner with the outer periphery of the wear-resistant sheet.

[0019] In an embodiment, the spacing between the inner sidewall and the inner periphery of the wear-resistant sheet is L1, wherein 0.07mm≤L1≤0.12mm; and / or,

[0020] The spacing between the outer sidewall and the outer periphery of the wear-resistant sheet is L2, wherein 0.07mm≤L2≤0.12mm.

[0021] In an embodiment, the wear-resistant sheet comprises a plurality of wear-resistant layers arranged in a stacked manner, and the plurality of wear-resistant layers comprises a non-metal wear-resistant layer which is farthest from the static scroll plate and is at the outermost side.

[0022] In one embodiment, the plurality of wear-resistant layers are configured as three layers, wherein the three wear-resistant layers include a first wear-resistant layer connected to the stationary vortex disk, a second wear-resistant layer located on the outermost side, and a third wear-resistant layer located between the first wear-resistant layer and the second wear-resistant layer, wherein:

[0023] The first wear-resistant layer is made of low-carbon steel; and / or,

[0024] The second wear-resistant layer is made of Teflon; and / or,

[0025] The third wear-resistant layer is made of copper alloy.

[0026] In one embodiment, the wear-resistant sheet is made of high-carbon steel or stainless steel.

[0027] This application also provides a compressor including the above-described stationary scroll structure, wherein the stationary scroll structure includes:

[0028] A stationary scroll plate has a first surface for mating with a moving scroll plate. A first friction zone is formed on the first surface. Corresponding to the first friction zone, the stationary scroll plate is used for intermittent relative mating with the moving scroll plate.

[0029] A wear-resistant pad is disposed on the first disc surface and is at least partially located within the first friction zone.

[0030] In the technical solution of this application, a compression chamber is formed by combining the stationary scroll disk with the moving scroll disk, and a wear-resistant plate is provided to isolate the stationary scroll disk from the moving scroll disk, preventing direct contact between them. Simultaneously, the wear-resistant plate is at least partially located within the first friction zone. On one hand, the first disk surface has a large space, allowing for an increase in the size of the wear-resistant plate and reducing its manufacturing difficulty. On the other hand, when the moving scroll disk moves to the first friction zone, the wear-resistant plate can contact the moving scroll disk, ensuring a good seal between the moving and stationary scroll disks and improving surface wear between the stationary and moving scroll disks within the first friction zone. This solves the problem of abnormal wear that may occur in existing compressors during high-frequency operation. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 is a schematic diagram of an embodiment of the static vortex disk structure provided in this application;

[0033] Figure 2 is a magnified view of part A in Figure 1;

[0034] Figure 3 is another schematic diagram of the static vortex disk structure in Figure 1;

[0035] Figure 4 is another structural schematic diagram of the static vortex disk structure in Figure 1.

[0036] Figure 5 is a schematic diagram of the wear-resistant sheet in Figure 1;

[0037] Figure 6 is a structural schematic diagram of an embodiment of the scroll compressor provided in this application.

[0038] Explanation of icon numbers:

[0039] 100. Static vortex disk structure; 1. Static vortex disk; 11. First disk surface; 111. First friction zone; 112. Second friction zone; 2. Wear-resistant plate; 21. First wear-resistant layer; 22. Second wear-resistant layer; 23. Third wear-resistant layer; 3. Mounting groove; 31. Inner wall; 32. Outer wall; 4. Limiting structure; 41. Limiting protrusion; 5. Oil groove;

[0040] 1000, scroll compressor; 200, moving scroll plate.

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0043] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0045] Currently, scroll compressors consist of a stationary scroll, a moving scroll, and a crankshaft. The moving scroll is mounted on the crankshaft and is assembled with the stationary scroll, allowing it to move relative to it. During operation, the crankshaft undergoes eccentric motion, while the moving scroll revolves, thus realizing the compressor's intake, compression, and exhaust processes. After assembly, the stationary and moving scrolls come into contact. During compressor operation, the surfaces of the moving and stationary scrolls press and rub against each other to seal the chamber. This pressing and friction between the moving and stationary scroll surfaces easily leads to abnormal wear. Therefore, an oil groove structure is typically provided on the stationary scroll surface, and oil is supplied to the oil groove through an oil supply hole on the moving scroll surface. The rotation of the moving scroll then lubricates the surfaces of the moving and stationary scrolls.

[0046] To ensure a good seal on the surfaces of the moving and stationary scroll plates, the oil grooves on the stationary scroll plate are typically located in the area where the moving and stationary scroll plates rub continuously. However, the area where the moving and stationary scroll plates rub intermittently cannot be equipped with oil grooves. This intermittent friction area prevents direct oil supply, resulting in insufficient oil supply to the plate surface during compressor operation. In some cases, dry friction may even occur. Therefore, this lubrication structure can improve the performance of compressors operating at low frequencies (frequency less than or equal to 120Hz), but it can easily cause abnormal wear on the plate surface of compressors operating at high frequencies (frequency greater than 120Hz), leading to compressor failure.

[0047] In view of this, this application proposes a stationary scroll structure for scroll compressors, aiming to solve the problem of abnormal wear that may occur in existing compressors during high-frequency operation. Figures 1 to 5 illustrate the stationary scroll structure to be provided in this application.

[0048] Please refer to Figures 1 to 4. In one embodiment of this application, the stationary scroll disk structure 100 includes a stationary scroll disk 1 and a wear-resistant plate 2. The stationary scroll disk 1 has a first disk surface 11, which is used to cooperate with the moving scroll disk 200. A first friction area 111 is formed on the first disk surface 11. Corresponding to the first friction area 111, the stationary scroll disk 1 is used to intermittently cooperate with the moving scroll disk 200. The wear-resistant plate 2 is disposed on the first disk surface 11 and is at least partially located within the first friction area 111.

[0049] It should be noted that, referring to Figures 1 and 3, the first friction zone 111 refers to the annular region where the stationary volute 1 and the moving volute 200 intermittently rub against each other. If the radius of the moving volute 200 is r, the eccentricity of the moving volute 200 is e, the inner diameter of the first friction zone 111 is R1, and the outer diameter is R2, then the first friction zone 111 is an annular region formed around the center of the stationary volute 1 with radii of R1 = r + e and R2 = r + 2e. Furthermore, the statement that the wear-resistant plate 2 is at least partially located within the first friction zone 111 means that the wear-resistant plate 2 can be partially or completely located within the first friction zone 111, etc., and this application does not impose any limitations on this. Specifically, the outer periphery of the wear-resistant plate 2 may be located between the inner and outer diameters of the first friction area 111, or outside the outer diameter of the first friction area 111, or at the outer diameter of the first friction area 111, etc. This application does not limit this.

[0050] In the technical solution of this application, the stationary scroll plate 1 is configured to combine with the moving scroll plate 200 to form a compression chamber, and the wear-resistant plate 2 is configured to isolate the stationary scroll plate 1 from the moving scroll plate 200, so as to prevent the moving scroll plate 200 from directly contacting the stationary scroll plate 1. At the same time, the wear-resistant plate 2 is at least partially located within the first friction zone 111. On the one hand, the first plate surface 11 has a large space, which can increase the size of the wear-resistant plate 2 and reduce the manufacturing difficulty of the wear-resistant plate 2. On the other hand, when the moving scroll plate 200 moves to the first friction zone 111, the wear-resistant plate 2 can contact the moving scroll plate 200, which can not only ensure the sealing effect between the moving scroll plate 200 and the stationary scroll plate 1, but also improve the plate surface wear between the stationary scroll plate 1 and the moving scroll plate 200 within the first friction zone 111, thereby solving the problem of abnormal wear that may occur in existing compressors during high-frequency operation.

[0051] In one embodiment of this application, please refer to FIG4. The first disk surface 11 of the static vortex disk 1 is provided with a mounting groove 3, and the wear-resistant plate 2 is disposed in the mounting groove 3. Thus, by setting the mounting groove 3, the position of the wear-resistant plate 2 is located on the first disk surface 11, thereby facilitating the quick installation of the wear-resistant plate 2 on the static vortex disk 1.

[0052] In some embodiments, the mounting groove 3 is annularly arranged and has an outer wall 32 located radially on the stationary scroll plate 1. The outer wall 32 is located at the outer boundary of the first friction area 111. Thus, the mounting groove 3 is annularly arranged to fit the shape of the first friction area 111 for mounting the wear-resistant plate 2. Simultaneously, the outer wall 32 is located at the outer boundary of the first friction area 111 so that the outer periphery of the wear-resistant plate 2 can completely cover the first friction area 111. This not only facilitates wear of the first friction area 111 but also improves the sealing effect between the stationary scroll plate 1 and the moving scroll plate 200. It is understood that the outer boundary of the first friction area 111 is the outer diameter R2 of the first friction area 111.

[0053] In one embodiment of this application, the stationary scroll structure 100 further includes a limiting structure 4 disposed between the wear-resistant plate 2 and the mounting groove 3 to limit the rotation of the wear-resistant plate 2. Thus, by setting the limiting structure 4, when the moving scroll 200 rotates, the wear-resistant plate 2 is driven to rotate relative to the stationary scroll 1, causing wear to occur between the wear-resistant plate 2 and the stationary scroll 1.

[0054] Furthermore, the limiting structure 4 includes a mutually cooperating limiting protrusion 41 and a mating groove. One of the limiting protrusion 41 and the mating groove is located on the wear-resistant plate 2, and the other is located on the side wall of the mounting groove 3. Thus, by providing the mutually cooperating limiting protrusion 41 and the mating groove, the relative rotation between the wear-resistant plate 2 and the mounting groove 3 can be limited, preventing the moving scroll plate 200 from driving the wear-resistant plate 2 to rotate, and facilitating the installation of the wear-resistant plate 2. Of course, in other embodiments, the wear-resistant plate 2 can also be fixed in the mounting groove 3 by a screw connection structure, as long as the relative rotation between the wear-resistant plate 2 and the mounting groove 3 can be limited. This application does not impose any limitations on this.

[0055] In one embodiment of this application, the depth of the mounting groove 3 is H, and the thickness of the wear-resistant plate 2 is D1, wherein 0.015mm ≤ D1 - H ≤ 0.035mm. This allows the wear-resistant plate 2 to protrude from the first disk surface 11, ensuring it remains in close contact with the moving scroll plate 200. Of course, in other embodiments, the wear-resistant plate 2 may be flush with the first disk surface 11; this application does not limit this. It is understood that the height difference between the wear-resistant plate 2 and the mounting groove 3 can be any value between 0.015mm and 0.035mm, such as 0.016mm, 0.017mm, 0.018mm, 0.019mm, 0.02mm, 0.021mm, 0.022mm, 0.023mm, 0.024mm, 0.025mm, etc., all of which are within the protection scope of this application.

[0056] In one embodiment of this application, please refer to Figures 1 to 3. The first disk surface 11 of the stationary scroll plate 1 is further formed with a second friction zone 112 located within the first friction zone 111. The second friction zone 112 is used to always cooperate with the moving scroll plate 200. The first disk surface 11 is provided with an oil groove 5 in the second friction zone 112. In this way, by providing the oil groove 5 in the friction zone, the moving scroll plate 200 and the stationary scroll plate 1 are lubricated, so as to improve the disk surface wear in the second friction zone 112.

[0057] It should be noted that the second friction zone 112 refers to the annular region of continuous friction between the stationary volute disk 1 and the moving volute disk 200. If the radius of the moving volute disk 200 is r, the eccentricity of the moving volute disk 200 is e, and the outer diameter of the second friction zone 112 is R3, then the second friction zone 112 is the area formed around the center of the stationary volute disk 1 with a radius of R3 = r + e. The outer diameter of the second friction zone 112 is the same as the inner diameter of the first friction zone 111.

[0058] There are various ways to install the wear-resistant plate 2 and the mounting groove 3. The wear-resistant plate 2 can be installed in the mounting groove 3 by interference fit or clearance fit, etc. This application does not limit this. Specifically, in one embodiment of this application, the stationary vortex disk 1 is provided with a mounting groove 3, and the wear-resistant plate 2 is disposed in the mounting groove 3. The mounting groove 3 has an inner sidewall 31 and an outer sidewall 32 located radially on the stationary vortex disk 1. The inner sidewall 31 is spaced apart from the inner periphery of the wear-resistant plate 2. The oil groove 5 is defined between the inner sidewall 31 and the wear-resistant plate 2. Thus, the wear-resistant plate 2... The inner periphery and the inner sidewall 31 of the mounting side are spaced apart to form the oil groove 5. This facilitates the installation of the wear-resistant plate 2 and allows lubricating oil to enter the mounting groove 3, enabling the wear-resistant plate 2 to be adsorbed in the mounting groove 3 without the need for additional fixing structures. It also provides the wear-resistant plate 2 with a certain radial movement space, allowing it to move radially along the stationary scroll plate 1 under the drive of the moving scroll plate 200. This helps to accelerate the flow of lubricating oil, increase the lubrication of the first friction zone 111, and thus improve the reliability of the disk surface between the moving scroll plate 200 and the stationary scroll plate 1.

[0059] In another embodiment, the outer sidewall 32 is spaced apart from the outer periphery of the wear-resistant plate 2. Thus, the inner periphery of the wear-resistant plate 2 and the inner sidewall 31 of the mounting side are spaced apart to form the oil groove 5. This facilitates the installation of the wear-resistant plate 2 and provides the wear-resistant plate 2 with a certain radial movement space, allowing it to move radially along the stationary scroll plate 1 under the drive of the moving scroll plate 200. This helps to accelerate the flow of lubricating oil, increases the lubrication of the first friction zone 111, and improves the reliability of the disk surface between the moving scroll plate 200 and the stationary scroll plate 1.

[0060] In one embodiment of this application, the distance between the inner sidewall 31 and the inner periphery of the wear-resistant plate 2 is L1, wherein 0.07mm≤L1≤0.12mm. If the distance between the inner sidewall 31 and the outer periphery of the wear-resistant plate is too large, the wear-resistant plate 2 will have an excessive range of motion, affecting the flow of lubricating oil. If the distance is too small, it is not conducive to installation. Therefore, 0.07mm≤L1≤0.12mm facilitates installation on the wear-resistant plate 2 without affecting the flow of lubricating oil. It is understood that the distance between the inner sidewall 31 and the inner periphery of the wear-resistant plate 2 can be any value between 0.07mm and 0.12mm, such as 0.08mm, 0.09mm, 0.1mm, 0.11mm, etc., and all of these values ​​are within the protection scope of this application.

[0061] In another embodiment, the distance between the outer side wall 32 and the outer periphery of the wear-resistant plate 2 is L2, wherein 0.07mm ≤ L2 ≤ 0.12mm. If the distance between the outer side wall 32 and the outer periphery of the wear-resistant plate is too large, the wear-resistant plate 2 will have excessive movement, affecting the flow of lubricating oil. If the distance is too small, it is not conducive to installation. Therefore, 0.07mm ≤ L2 ≤ 0.12mm facilitates installation on the wear-resistant plate 2 without affecting the flow of lubricating oil. It is understood that the distance between the outer side wall 32 and the outer periphery of the wear-resistant plate 2 can be any value between 0.07mm and 0.12mm, such as 0.08mm, 0.09mm, 0.1mm, 0.11mm, etc., and all of these values ​​are within the protection scope of this application.

[0062] It should be noted that the two related technical features mentioned above, "0.07mm≤L1≤0.12mm" and "0.07mm≤L2≤0.12mm", can be set individually or simultaneously. Obviously, setting them simultaneously will yield better results.

[0063] To ensure the strength of the moving scroll plate 200 and the stationary scroll plate 1, they are typically made of the same material as cast iron, which has high friction and is prone to surface abnormalities during high-frequency operation of the compressor. Therefore, in this embodiment, as shown in Figure 5, the wear-resistant plate 2 includes multiple wear-resistant layers stacked in layers. Each wear-resistant layer includes a non-metallic wear-resistant layer located away from the stationary scroll plate 1 and on the outermost side. By setting multiple wear-resistant layers and including the non-metallic wear-resistant layer, the metallic friction between the moving scroll plate 200 and the stationary scroll plate 1 is converted into non-metallic friction between the moving scroll plate 200 and the wear-resistant plate 2, thereby helping to reduce the friction between the stationary scroll plate 1 and the moving scroll plate 200.

[0064] In one embodiment of this application, the multiple wear-resistant layers are configured as three layers. The three wear-resistant layers include a first wear-resistant layer 21 connected to the static vortex disk 1, a second wear-resistant layer 22 located on the outermost side, and a third wear-resistant layer 23 located between the first wear-resistant layer 21 and the second wear-resistant layer 22. The first wear-resistant layer 21 is made of low-carbon steel. Thus, the use of low-carbon steel for the first wear-resistant layer 21 can both ensure the strength of the wear-resistant sheet 2 and reduce the cost of the wear-resistant sheet 2.

[0065] In one embodiment of this application, the second wear-resistant layer 22 is made of Teflon. Since Teflon is an excellent self-lubricating material, the use of Teflon in the second wear-resistant layer 22 can greatly reduce the coefficient of friction between the moving scroll disk 200 and the wear-resistant sheet 2.

[0066] In one embodiment of this application, the third wear-resistant layer 23 is made of copper alloy. Since Teflon is not easy to adhere to low carbon steel, the third wear-resistant layer 23 is made of copper alloy for transition, so as to connect the first wear-resistant layer 21 and the second wear-resistant layer 22 into a whole, thereby improving the yield of the wear-resistant sheet 2.

[0067] It should be noted that the above three related technical features: "the first wear-resistant layer 21 is made of low-carbon steel", "the second wear-resistant layer 22 is made of Teflon", and "the third wear-resistant layer 23 is made of copper alloy" can be selected as one, two, or simultaneously, and this application does not limit this.

[0068] Furthermore, in order to improve the yield of the wear-resistant sheet 2, in this embodiment, the thickness of the third wear-resistant layer 23 is half that of the first wear-resistant layer 21. This facilitates the connection between the first wear-resistant layer 21 and the second wear-resistant layer 22, reduces the cost of the wear-resistant sheet 2, and improves the yield of the wear-resistant sheet 2.

[0069] In one embodiment of this application, the thickness of the second wear-resistant layer 22 is D2, wherein 0.04mm≤D2≤0.06mm, which facilitates the attachment of the second wear-resistant layer 22 to the third wear-resistant layer 23 and helps to improve the yield of the wear-resistant sheet 2.

[0070] In one embodiment of this application, the wear-resistant plate 2 is made of high-carbon steel or stainless steel. Since high-carbon steel and stainless steel have a low coefficient of friction, using high-carbon steel or stainless steel can reduce the friction between the moving scroll plate 200 and the stationary scroll plate 1, thereby helping to improve wear between the plates.

[0071] This application also proposes a scroll compressor 1000. Please refer to Figure 6. The scroll compressor 1000 includes a stationary scroll structure 100. The specific structure of the stationary scroll structure 100 is as described in the above embodiments. Since the scroll compressor 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0072] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A static vortex disk structure, wherein, The stationary vortex disk structure includes: A stationary scroll plate has a first surface for mating with a moving scroll plate. A first friction zone is formed on the first surface. Corresponding to the first friction zone, the stationary scroll plate is used for intermittent relative mating with the moving scroll plate. A wear-resistant pad is disposed on the first disc surface and is at least partially located within the first friction zone.

2. The static vortex disk structure as described in claim 1, wherein, The first surface of the static vortex disk is provided with a mounting groove, and the wear-resistant plate is disposed in the mounting groove.

3. The static vortex disk structure as described in claim 2, wherein, The mounting groove is arranged in a ring shape and has an outer wall located radially on the static vortex disk. The outer wall is located at the outer boundary of the first friction zone.

4. The static vortex disk structure as described in claim 2, wherein, The static vortex disk structure also includes a limiting structure disposed between the wear-resistant plate and the mounting groove to limit the rotation of the wear-resistant plate.

5. The static vortex disk structure as described in claim 4, wherein, The limiting structure includes a limiting protrusion and a mating groove that cooperate with each other. One of the limiting protrusion and the mating groove is provided on the wear-resistant plate, and the other is provided on the side wall of the mounting groove.

6. The static vortex disk structure as described in claim 2, wherein, The depth of the mounting groove is H, and the thickness of the wear-resistant sheet is D1, wherein 0.015mm≤D1-H≤0.035mm.

7. The static vortex disk structure as described in claim 1, wherein, The first surface of the stationary vortex disk is further formed with a second friction zone within the first friction zone, the second friction zone being used to always cooperate with the moving vortex disk. The first disc surface is provided with an oil groove in the second friction zone.

8. The static vortex disk structure as described in claim 7, wherein, The stationary vortex disk is provided with a mounting groove, and the wear-resistant plate is disposed in the mounting groove. The mounting groove has an inner sidewall and an outer sidewall located radially on the stationary vortex disk, wherein: The inner sidewall is spaced apart from the inner periphery of the wear-resistant sheet, and the oil groove is defined between the inner sidewall and the wear-resistant sheet; and / or, The outer sidewall is spaced apart from the outer periphery of the wear-resistant sheet.

9. The static vortex disk structure as described in claim 8, wherein, The distance between the inner sidewall and the inner periphery of the wear-resistant sheet is L1, wherein 0.07mm ≤ L1 ≤ 0.12mm; and / or, The distance between the outer side wall and the outer periphery of the wear-resistant sheet is L2, wherein 0.07mm≤L2≤0.12mm.

10. The static vortex disk structure as described in claim 1, wherein, The wear-resistant sheet includes multiple wear-resistant layers arranged in a stacked manner, and the multiple wear-resistant layers include a non-metallic wear-resistant layer that is far away from the static vortex disk and located on the outermost side.

11. The static vortex disk structure as described in claim 10, wherein, The wear-resistant layers are configured as three layers, comprising a first wear-resistant layer connected to the stationary vortex disk, a second wear-resistant layer on the outermost side, and a third wear-resistant layer between the first and second wear-resistant layers, wherein: The first wear-resistant layer is made of low-carbon steel; and / or, The second wear-resistant layer is made of Teflon; and / or, The third wear-resistant layer is made of copper alloy.

12. The static vortex disk structure as described in claim 1, wherein, The wear-resistant sheet is made of high-carbon steel or stainless steel.

13. A scroll compressor, wherein, The scroll compressor includes a static scroll structure as described in any one of claims 1 to 12.

Images