Oil-free scroll compressor structure and compressor

Abstract

The utility model discloses an oil-free scroll compressor structure and a compressor. The oil-free scroll compressor structure comprises a movable disc and a fixed disc arranged above the movable disc; the support is arranged on the end face, away from the static disc, of the movable disc, and a cross-shaped sliding ring is arranged between the support and the movable disc; the ball clamping holes are formed in the support, elastic components are arranged in the ball clamping holes, balls making contact with the movable disc are arranged at the ends of the elastic components, and the elastic components are used for applying pressure to the balls in the ball clamping holes. According to the utility model, the structure is simple, the support is provided with the plurality of ball clamping holes, and the balls are arranged in the ball clamping holes, so that the direct contact friction of the support plane between the support and the movable disc is converted into the rolling friction of the contact between the support and the balls, the friction power consumption can be obviously reduced, and the heat generated by the friction is reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to an oil-free scroll compressor structure and compressor. Background Technology

[0002] In scroll compressors, the anti-rotation mechanism is a core component ensuring the stable rotational and translational motion of the moving scroll disc (hereinafter referred to as "moving disc"). Currently, commonly used anti-rotation mechanisms on the market mainly include three-crank crankshaft structures, cross-slip ring structures, cylindrical pin coupling structures, and spherical coupling structures. Among these, the three-crank crankshaft structure suspends the moving disc in space through a unique crankshaft design, eliminating the need for its back side to directly contact the supporting surface, thus reducing friction. The spherical coupling structure, on the other hand, uses balls at the bottom of the moving disc to create rolling friction between the moving disc and the supporting surface, significantly reducing frictional power consumption. However, spherical couplings require extremely high precision machining of the grooves that constrain the ball movement, leading to a significant increase in manufacturing costs. Furthermore, once the balls wear or become stuck, sliding friction can easily occur, posing a risk of accelerated wear and decreased reliability over long-term operation.

[0003] In contrast, cross-ring and cylindrical pin couplings are widely used due to their simple structure and low cost. However, both of these structures rely on direct contact between the back of the moving disc and the supporting plane to achieve motion constraint, resulting in sliding friction between them. Sliding friction not only leads to significant mechanical energy loss but also causes localized high temperatures due to frictional heat. Especially in oil-free scroll compressors, the lack of cooling and lubrication from lubricating oil exacerbates component wear, reduces sealing performance, and may cause gas leakage, ultimately leading to decreased compressor efficiency and shortened lifespan. Therefore, an oil-free scroll compressor structure and compressor are proposed. Utility Model Content

[0004] The purpose of this invention is to provide an oil-free scroll compressor structure and compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a compressor structure, comprising:

[0006] A moving plate, with a stationary plate positioned above it;

[0007] A bracket, wherein the bracket is disposed on the end face of the moving plate away from the stationary plate, and a cross slip ring is provided between the bracket and the moving plate; and

[0008] Multiple ball bearing holes are provided on the bracket, and each ball bearing hole is provided with an elastic component. The end of the elastic component is provided with a ball bearing that keeps in contact with the moving plate. The elastic component is used to apply pressure to the ball bearing in the ball bearing hole.

[0009] As a further embodiment of this utility model: the support has multiple ventilation openings on the end face near the moving plate, and at least one of the ventilation openings has a first sliding groove.

[0010] As a further embodiment of this utility model: a second sliding groove is provided on the end face of the moving disk near the cross slip ring, and a vortex-shaped line is provided on the end face of the moving disk away from the second sliding groove.

[0011] As a further embodiment of this utility model: the cross slip ring is provided with a first slide table that slides in cooperation with the first slide groove, and a second slide table that slides in cooperation with the second slide groove.

[0012] As a further embodiment of this utility model: the ball bearing hole has a first opening and a second opening, wherein the ball bearing is located at the first opening, and the diameter of the first opening is smaller than the diameter of the ball bearing.

[0013] As a further embodiment of this utility model: the elastic component includes a spring disposed in the ball bearing hole, the end of the spring near the ball bearing is connected to a support platform, and the support platform has a ball-and-socket shaped surface that mates with the ball bearing.

[0014] As a further embodiment of this utility model: the second opening of the ball bearing hole has an internal thread, the second opening is connected to the set screw through the internal thread, and the end of the set screw inserted into the ball bearing hole is in contact with the spring.

[0015] As a further embodiment of this utility model: a motor is provided on the end face of the bracket away from the moving plate, and the output end of the motor is connected to the moving plate.

[0016] A compressor comprising the aforementioned oil-free scroll compressor structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This application converts the direct contact friction between the support plane and the moving disk between the support and the moving disk into rolling friction with the ball bearing by opening multiple ball bearing holes in the bracket and placing a ball bearing in each ball bearing hole. This significantly reduces frictional power consumption and heat generated by friction. Elastic components are provided at the bottom of the ball bearing in each ball bearing hole. These elastic components apply appropriate pressure to the ball bearing to ensure that the ball bearing can maintain good contact with the moving disk. This not only helps to maintain the smooth operation of the entire mechanism, but also enables precise control of the frictional force between the ball bearing and the moving disk. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the oil-free scroll compressor of this utility model;

[0020] Figure 2This is a schematic diagram of the bracket of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the bracket of this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the spring and the support platform of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross slip ring of this utility model;

[0024] Figure 6 This is a schematic diagram of the moving disc of this utility model;

[0025] Figure 7 This is a schematic diagram of the vortex profile of this utility model;

[0026] In the diagram: 1. Bracket; 11. Ball bearing hole; 12. First slide groove; 13. Ventilation opening; 2. Cross slip ring; 21. First slide table; 22. Second slide table; 3. Moving plate; 31. Second slide groove; 32. Scroll profile; 4. Stationary plate; 5. Motor; 6. Ball bearing; 7. Spring; 8. Set screw; 9. Support platform; 91. Ball-and-socket surface. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 In this embodiment of the present invention, an oil-free scroll compressor structure includes:

[0029] Moving disk 3, with stationary disk 4 positioned above it;

[0030] Support 1 is located on the end face of the moving plate 3 away from the stationary plate 4, and a cross slip ring 2 is provided between support 1 and the moving plate 3; and

[0031] Multiple ball bearing holes 11 are provided on the bracket 1. Each ball bearing hole 11 is provided with an elastic component. The end of the elastic component is provided with a ball bearing 6 that keeps in contact with the moving plate 3. The elastic component is used to apply pressure to the ball bearing 6 in the ball bearing hole 11.

[0032] Specifically, multiple ball bearing holes 11 are provided on the end face of the bracket 1 near the cross slip ring 2. Each ball bearing hole 11 has a first opening and a second opening. The ball bearing 6 is located at the first opening, which is designed as a ball-and-socket shape with a diameter smaller than that of the ball bearing 6 to limit the extension height of the ball bearing 6. The ball-and-socket design not only increases the contact area with the ball bearing 6 but also reduces wear. Pressure is applied to the ball bearing 6 through the elastic component to ensure that the moving plate 3 always maintains contact with the ball bearing 6. In addition, this design changes the original friction mode, transforming the sliding friction between the back of the moving plate 3 and the bracket 1 into rolling friction between the back of the moving plate 3 and the ball bearing 6. This significantly reduces frictional power consumption and frictional heat generation. For oil-free scroll air compressors with high heat dissipation requirements, such improvements greatly enhance equipment performance.

[0033] Please see Figure 2 In one embodiment, preferably, the support 1 has a plurality of ventilation openings 13 on the end face near the moving plate 3, wherein at least one ventilation opening 13 has a first sliding groove 12. In this embodiment, the number of ventilation openings 13 is four, and the four ventilation openings 13 are perpendicular to each other to form a cross. The presence of ventilation openings 13 can promote air circulation inside the compressor, help to remove the heat generated by the moving plate 3 and other heat-generating components, and effectively reduce the operating temperature.

[0034] Please see Figure 5-7 In one embodiment, preferably, the end face of the moving disk 3 near the cross slip ring 2 is provided with a second sliding groove 31, and the end face of the moving disk 3 away from the second sliding groove 31 is provided with a vortex-shaped line 32. The cross slip ring 2 is provided with a first sliding table 21 that slides in cooperation with the first sliding groove 12, and a second sliding table 22 that slides in cooperation with the second sliding groove 31. After assembly, the first sliding table 21 enters the first sliding groove 12, and the second sliding table 22 enters the second sliding groove 31, which can prevent the moving disk 3 from rotating.

[0035] Please see Figure 3-4 In one embodiment, preferably, the elastic component includes a spring 7 disposed in the ball bearing hole 11. The end of the spring 7 near the ball bearing 6 is connected to the support platform 9. The support platform 9 has a ball-and-socket shaped surface 91 that mates with the ball bearing 6. The ball-and-socket shaped surface 91 is designed to provide a rolling support surface for the ball bearing 6. At the same time, the support platform 9 matches the ball bearing hole 11, so that the support platform 9 can move freely back and forth in the ball bearing hole 11.

[0036] Please see Figure 3In one embodiment, preferably, the second opening of the ball bearing hole 11 has an internal thread, and the second opening is connected to the set screw 8 through the internal thread. The end of the set screw 8 inserted into the ball bearing hole 11 keeps in contact with the spring 7. By rotating the set screw 8, the end of the set screw 8 presses the end of the spring 7, thereby adjusting the preload of the spring 7.

[0037] Please see Figure 1 In one embodiment, preferably, the end face of the bracket 1 away from the moving plate 3 is provided with a motor 5. The output end of the motor 5 is connected to the moving plate 3. The output end of the motor 5 has an eccentric drive structure. The eccentric drive structure is clearance-fitted with the bearing inner hole of the moving plate 3 near the end face of the cross slip ring 2. In this way, the motor 5 can drive the moving plate 3 to rotate.

[0038] A compressor, comprising an oil-free scroll compressor structure.

[0039] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An oil-free scroll compressor structure, characterized by, The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor.

2. The oil-free scroll compressor structure according to claim 1, wherein The application relates to a structure of an oil-free scroll compressor.

3. The oil-free scroll compressor structure according to claim 2, wherein The application relates to a structure of an oil-free scroll compressor.

4. The oil-free scroll compressor structure according to claim 3, wherein The application relates to a structure of an oil-free scroll compressor.

5. The oil-free scroll compressor structure according to claim 1, wherein The application relates to a structure of an oil-free scroll compressor.

6. The oil-free scroll compressor structure according to claim 5, wherein The application relates to a structure of an oil-free scroll compressor.

7. The oil-free scroll compressor structure according to claim 6, wherein The application relates to a structure of an oil-free scroll compressor.

8. The oil-free scroll compressor structure according to claim 1, wherein The application relates to a structure of an oil-free scroll compressor.

9. A compressor characterized by, The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor. The application relates to a structure of an oil-free scroll compressor

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