Crescent exhaust cylinder and compressor

Abstract

This application relates to a crescent-shaped exhaust cylinder and compressor. The crescent-shaped exhaust cylinder includes: a cylinder body, a crescent-shaped exhaust port, an intake port, and a vane groove. The intake port, crescent-shaped exhaust port, and vane groove are all disposed on the cylinder body; the vane groove is located between the intake port and the crescent-shaped exhaust port; the crescent-shaped exhaust port includes a first crescent-shaped exhaust port, a second crescent-shaped exhaust port, and a third crescent-shaped exhaust port, with the second crescent-shaped exhaust port located between the first and third crescent-shaped exhaust ports. The solution provided by this application, through the mutual cooperation between the first, second, and third crescent-shaped exhaust ports, effectively eliminates burrs and flanges without increasing the exhaust angle, reduces deformation of the cylinder vane groove and wear of the cutting tool, while expanding the exhaust coverage area and increasing the application range.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more particularly to a crescent-shaped exhaust cylinder and compressor. Background Technology

[0002] With the upgrading of air conditioner energy efficiency, the energy efficiency requirements for air conditioner compressor components are becoming increasingly stringent. As the core component of the compressor, improving the efficiency of the compressor pump body can improve the energy efficiency of the air conditioner. And the cylinder, as a key component of the pump body, is directly related to the efficiency of the compressor pump body.

[0003] A cylinder is a precision-machined structural component used in a rotary compressor to support the pump body and form high and low pressure chambers for the flow of the working fluid. It is a fundamental part that enables the compressor to function, bearing the frictional forces of the rotating parts and the constantly changing gas forces, requiring high strength and good machinability.

[0004] Currently, cylinder design requirements are increasingly demanding higher exhaust angles at the cylinder exhaust port. The cylinder exhaust port should be as close as possible to the vane groove to reduce exhaust closing time and improve pump efficiency. The shape, size, and exhaust angle of the crescent groove are key factors affecting exhaust. When the shape and size of the exhaust crescent groove are fixed, a smaller exhaust angle at the cylinder exhaust port results in higher exhaust efficiency. However, a smaller exhaust angle often leads to the crescent groove and vane groove frequently intersecting or being too close together. This can cause problems during machining, such as incomplete burr removal, chipping affecting compressor performance, and significant machining deformation affecting tool life and reducing production efficiency.

[0005] Existing domestic patent CN 113464434 A discloses a structure with double crescent grooves. Specifically, the exhaust port includes a first notch and a second notch. The first notch is located away from the slide groove relative to the second notch, and the second notch is located close to the slide groove relative to the first notch. Although it reduces the clearance volume and effectively eliminates flanges and burrs, the exhaust coverage of this patented cylinder is narrow and its application range is small.

[0006] Therefore, this application proposes a crescent-shaped exhaust cylinder, which can effectively eliminate flanges and burrs, reduce cylinder slide groove deformation and tool deformation and wear, while also expanding the exhaust coverage area and increasing the application range. Summary of the Invention

[0007] To overcome the problems existing in the related technologies, this application provides a crescent-shaped exhaust cylinder. This cylinder can reduce the deformation of the cylinder slide groove and the deformation and wear of the cutting tool, while effectively achieving a smaller exhaust angle, improving production efficiency and pump efficiency, and realizing low-cost processing and high-efficiency compressors.

[0008] The first aspect of this application provides a crescent-shaped exhaust cylinder, including a cylinder body, a crescent-shaped exhaust port, an air inlet, and a sliding vane groove, wherein the air inlet, the crescent-shaped exhaust port, and the sliding vane groove are all disposed on the cylinder body;

[0009] The sliding groove is located between the air inlet and the crescent-shaped exhaust port;

[0010] The crescent-shaped exhaust port includes a first crescent-shaped exhaust port, a second crescent-shaped exhaust port, and a third crescent-shaped exhaust port, with the second crescent-shaped exhaust port located between the first crescent-shaped exhaust port and the third crescent-shaped exhaust port.

[0011] In one embodiment, the third crescent-shaped exhaust port is positioned close to the slide groove relative to the second crescent-shaped exhaust port, with one end of the third crescent-shaped exhaust port connected to the slide groove and the other end connected to the second crescent-shaped exhaust port.

[0012] In one embodiment, the angle β between the centerline of the first crescent-shaped exhaust port and the centerline of the sliding groove is less than or equal to 11°.

[0013] Or the angle α between the centerline of the third crescent exhaust port and the centerline of the sliding groove is less than or equal to 5°.

[0014] In one embodiment, the angle ε between the centerline of the second crescent-shaped exhaust port and the centerline of the sliding groove is less than or equal to 7°.

[0015] In one embodiment, the sliding vane groove intersects the inner circle of the cylinder at the second groove edge and the first groove edge.

[0016] The point where the first contour edge of the second crescent-shaped exhaust port intersects with the inner circle is the inner intersection point of the second crescent.

[0017] The distance d from the second groove edge to the intersection point of the second crescent is greater than or equal to 0.3 mm.

[0018] In one embodiment, the outermost intersection point where the first contour edge of the second crescent exhaust port intersects with the cylinder end face is the outermost point of the second crescent.

[0019] The distance e from the second crescent outer point to the slide groove is greater than or equal to 0.2 mm.

[0020] In one embodiment, the intersection point where the first contour edge of the third crescent-shaped exhaust port intersects with the inner circle is the inner intersection point of the third crescent.

[0021] The distance C from the inner intersection of the third crescent to the edge of the first groove is greater than 0.

[0022] In one embodiment, the intersection point where the first contour edge of the first crescent-shaped exhaust port intersects with the inner circle is the inner intersection point of the first crescent.

[0023] The distance b from the inner intersection of the first crescent to the inner intersection of the third crescent is less than the diameter of the flange vent hole. The flange vent hole is located on the flange, and the flange is located on the crescent vent cylinder.

[0024] The second aspect of this application provides a crescent-shaped exhaust cylinder, comprising: a cylinder body, a crescent-shaped exhaust port, an air inlet, and a sliding vane groove, wherein the air inlet, the crescent-shaped exhaust port, and the sliding vane groove are all disposed on the cylinder body;

[0025] The sliding groove is located between the air inlet and the crescent-shaped exhaust port;

[0026] The crescent-shaped exhaust port includes a first crescent-shaped exhaust port, a second crescent-shaped exhaust port, and a third crescent-shaped exhaust port;

[0027] The first crescent-shaped exhaust port is positioned relative to the second crescent-shaped exhaust port, and the third crescent-shaped exhaust port is positioned away from the sliding plate groove;

[0028] The second crescent-shaped exhaust port is connected to the sliding groove, the first crescent-shaped exhaust port, and the third crescent-shaped exhaust port, respectively.

[0029] The third crescent-shaped exhaust port is connected to the chamfer of the sliding groove and the first crescent-shaped exhaust port, respectively.

[0030] A third aspect of this application provides a compressor including any of the aforementioned crescent-shaped exhaust cylinders.

[0031] The technical solution provided in this application may include the following beneficial effects: multiple crescent-shaped exhaust ports are set without increasing the exhaust angle, including a first crescent-shaped exhaust port, a second crescent-shaped exhaust port and a third crescent-shaped exhaust port. The first crescent-shaped exhaust port is mainly used for exhaust, discharging the high-pressure gas in the cylinder, reducing the impact of high-pressure gas re-expansion on the compressor's intake volume, and also improving the reliability of the compressor pump body parts.

[0032] The third crescent-shaped vent can remove the burrs and flanges generated during the machining of the slide groove, reduce the excessive stress concentration caused by the burrs and flanges, and does not increase the clearance volume.

[0033] The second crescent-shaped exhaust port is located between the first and second crescent-shaped exhaust ports. The second crescent-shaped exhaust port has the functions of both the first and third crescent-shaped exhaust ports. It can exhaust gas from the cylinder and also remove burrs and flakes from the third crescent-shaped exhaust port if they are not completely removed.

[0034] This application, through the cooperation between the first crescent-shaped exhaust port, the second crescent-shaped exhaust port, and the third crescent-shaped exhaust port, can effectively eliminate flanges and burrs without increasing the exhaust angle, reduce cylinder vane groove deformation and tool deformation and wear, and expand the exhaust coverage area compared to the double crescent-shaped exhaust port, thereby increasing the application range, ensuring the reliability of compressor pump body parts, improving compressor pump body efficiency, and improving air conditioner energy efficiency.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0037] Figure 1 This is a schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0038] Figure 2 This is a top view schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0039] Figure 3 This is an enlarged structural schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0040] Figure 4 This is a schematic diagram of the exhaust angle of the enlarged structure A of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0041] Figure 5 This is an enlarged structural schematic diagram (after machining of the sliding vane groove) of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0042] Figure 6 This is a schematic diagram of another implementation of the crescent-shaped exhaust cylinder shown in the embodiments of this application.

[0043] Figure 7 This is an enlarged structural schematic diagram of the crescent-shaped exhaust cylinder (after machining of the sliding vane groove) shown in the embodiments of this application;

[0044] Figure 8 This is a schematic diagram of the processing of the crescent-shaped exhaust port of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0045] Figure 9 This is a schematic diagram of the first cylindrical cutting tool machining the first crescent-shaped exhaust port, as shown in an embodiment of this application;

[0046] Figure 10This is a schematic diagram of the second cylindrical tool machining the second crescent-shaped exhaust port, as shown in an embodiment of this application;

[0047] Figure 11 This is a schematic diagram of the machining of the third crescent-shaped exhaust port by a third cylindrical cutting tool, as shown in an embodiment of this application.

[0048] Figure Labels

[0049] 1. Cylinder body; 2. Crescent-shaped exhaust port; 21. First crescent-shaped exhaust port; 211. Inner intersection of the first crescent; 22. Second crescent-shaped exhaust port; 221. Inner intersection of the second crescent; 222. Outer intersection of the second crescent; 23. Third crescent-shaped exhaust port; 231. Inner intersection of the third crescent; 3. Intake port; 4. Sliding vane groove; 41. First groove edge; 42. Second groove edge; 43. Chamfer; L1. Centerline of the first crescent-shaped exhaust port; L2. Centerline of the second crescent-shaped exhaust port; L3. Centerline of the third crescent-shaped exhaust port; L4. Centerline of the sliding vane groove. Detailed Implementation

[0050] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0051] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0052] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] Example 1

[0054] With the upgrading of air conditioner energy efficiency, the energy efficiency requirements for air conditioner compressor components are becoming increasingly stringent. As the core component of the compressor, improving the efficiency of the compressor pump body can improve the energy efficiency of the air conditioner. And the cylinder, as a key component of the pump body, is directly related to the efficiency of the compressor pump body.

[0055] A cylinder is a precision-machined structural component used in a rotary compressor to support the pump body and form high and low pressure chambers for the flow of the working fluid. It is a fundamental part that enables the compressor to function, bearing the frictional forces of the rotating parts and the constantly changing gas forces, requiring high strength and good machinability.

[0056] Currently, cylinder design requirements are increasingly demanding higher exhaust angles at the cylinder exhaust port. The cylinder exhaust port should be as close as possible to the vane groove to reduce exhaust closing time and improve pump efficiency. The shape, size, and exhaust angle of the crescent groove are key factors affecting exhaust. When the shape and size of the exhaust crescent groove are fixed, a smaller exhaust angle at the cylinder exhaust port results in higher exhaust efficiency. However, a smaller exhaust angle often leads to the crescent groove and vane groove frequently intersecting or being too close together. This can cause problems during machining, such as incomplete burr removal, chipping affecting compressor performance, and significant machining deformation affecting tool life and reducing production efficiency.

[0057] Existing domestic patent CN 113464434 A discloses a structure with double crescent grooves. Specifically, the exhaust port includes a first notch and a second notch. The first notch is located away from the slide groove relative to the second notch, and the second notch is located close to the slide groove relative to the first notch. Although it reduces the clearance volume and effectively eliminates flanges and burrs, the exhaust coverage of this patented cylinder is narrow and its application range is small.

[0058] Therefore, this application proposes a crescent-shaped exhaust cylinder, which can effectively eliminate flanges and burrs, reduce cylinder slide groove deformation and tool deformation and wear, while also expanding the exhaust coverage area and increasing the range of applications.

[0059] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0060] Figure 1 This is a schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0061] Figure 2 This is a top view schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0062] Figure 4 This is a schematic diagram of the exhaust angle of the enlarged structure A of the crescent-shaped exhaust cylinder shown in the embodiments of this application.

[0063] See Figure 1 , Figure 2and Figure 4 .

[0064] The crescent-shaped exhaust cylinder of this application embodiment includes a cylinder body 1, a crescent-shaped exhaust port 2, an air inlet 3 and a sliding vane groove 4, the air inlet 3, the crescent-shaped exhaust port 2 and the sliding vane groove 4 are all disposed on the cylinder body 1;

[0065] The vane groove 4 is located between the air inlet 3 and the crescent-shaped exhaust port 2;

[0066] The crescent-shaped exhaust port 2 includes a first crescent-shaped exhaust port 21, a second crescent-shaped exhaust port 22, and a third crescent-shaped exhaust port 23. The second crescent-shaped exhaust port 22 is located between the first crescent-shaped exhaust port 21 and the third crescent-shaped exhaust port 23. The third crescent-shaped exhaust port 23 is positioned closer to the sliding groove 4 than the second crescent-shaped exhaust port 22. One end of the third crescent-shaped exhaust port 23 is connected to the sliding groove 4, and the other end is connected to the second crescent-shaped exhaust port 22. Figure 1 As shown.

[0067] The first crescent-shaped exhaust port 21 in this embodiment is mainly used for venting the cylinder. The third crescent-shaped exhaust port 23 removes the burrs and flanges generated during the machining of the sliding vane groove 4. Its volume should be as small as possible to reduce the clearance volume. The second crescent-shaped exhaust port 22 has the functions of both the first crescent-shaped exhaust port 21 and the third exhaust port. It can vent the cylinder and also eliminate the burrs and flanges if the third crescent-shaped exhaust port 23 does not completely remove them.

[0068] By setting the third crescent exhaust port 23, the second crescent exhaust port 22 further ensures the exhaust effect of the cylinder, so that the high-pressure gas formed in the high-pressure chamber of the cylinder can be quickly discharged from the cylinder. In addition, the second crescent exhaust port 22 can also further eliminate the flanging and burrs of the machining slide groove 4.

[0069] For example, the crescent-shaped exhaust cylinder of this application can be applied to a rotary compressor, a type of air conditioner compressor, which includes a motor unit and a pump assembly. The pump assembly includes a cylinder, rollers located in the compression chamber of the cylinder, a sliding vane that reciprocates and contacts the rollers, a crankshaft that drives the rollers to rotate, and a flange that is sealed to the cylinder. The top end face of the sliding vane contacts the rollers, dividing the cylinder compression chamber into a high-pressure chamber and a low-pressure chamber. An exhaust port is provided on the flange, located on one side of the sliding vane, and the gas compressed by the compressor is discharged from the exhaust port of the flange.

[0070] In this embodiment, the high-pressure gas is discharged from the high-pressure chamber through the crescent-shaped exhaust port and then from the exhaust hole of the flange.

[0071] The air inlet 3 is located in the low-pressure chamber. Gas enters the low-pressure chamber from the air inlet 3 and is compressed into high-pressure gas by the rollers.

[0072] The vane groove 4 is a groove for the vane to contact and reciprocate with the roller, and its specific shape is not limited in this embodiment. The center line L4 of the vane groove is the center line along the radial direction of the cylinder body 1.

[0073] The beneficial effects of this application embodiment are as follows: multiple crescent-shaped exhaust ports are provided while ensuring a small exhaust angle, including a first crescent-shaped exhaust port, a second crescent-shaped exhaust port and a third crescent-shaped exhaust port. The first crescent-shaped exhaust port is mainly used for exhausting high-pressure gas from the cylinder, reducing the impact of high-pressure gas re-expansion on the compressor's intake volume, and also improving the reliability of the compressor pump body parts.

[0074] The third crescent-shaped vent can remove the burrs and flanges generated during the machining of the slide groove, reduce the excessive stress concentration caused by the burrs and flanges, and does not increase the clearance volume.

[0075] The second crescent-shaped exhaust port is positioned between the first and second crescent-shaped exhaust ports. It combines the functions of both the first and third exhaust ports: it exhausts gas from the cylinder and, in cases where the third crescent-shaped exhaust port is not completely clear of burrs and flanging, it helps to eliminate them. The second crescent-shaped exhaust port further ensures effective cylinder exhaust, allowing the high-pressure gas generated in the high-pressure chamber to be quickly expelled from the cylinder. Additionally, it further eliminates burrs and flanging from the machining of the sliding vane groove.

[0076] This application, through the cooperation between the first crescent-shaped exhaust port, the second crescent-shaped exhaust port and the third crescent-shaped exhaust port, can effectively eliminate burrs and reduce cylinder vane groove deformation and tool deformation and wear, while also expanding the exhaust coverage area and increasing the application range.

[0077] Example 2

[0078] In order to further eliminate burrs and reduce the impact on machining tools, the present application will further invent and design the crescent-shaped exhaust cylinder.

[0079] Figure 1 This is a schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0080] Figure 3 This is an enlarged structural schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0081] Figure 4 This is a schematic diagram of the exhaust angle of the enlarged structure A of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0082] See Figure 1 , Figure 3 and Figure 4 .

[0083] The crescent-shaped exhaust cylinder of this application embodiment is characterized in that: the cylinder body 1, the crescent-shaped exhaust port 2, the air inlet 3 and the sliding vane groove 4, the air inlet 3, the crescent-shaped exhaust port 2 and the sliding vane groove 4 are all disposed on the cylinder body 1.

[0084] The vane groove 4 is located between the air inlet 3 and the crescent-shaped exhaust port 2;

[0085] Furthermore, the first crescent-shaped exhaust port 21 is obtained by cutting it off through the intersection of the first cylindrical cutter and the cylinder body 1; the angle β between the center line L1 of the first crescent-shaped exhaust port and the center line L4 of the vane groove is less than or equal to 11°.

[0086] The exhaust angle of the first crescent exhaust port 21 in this application refers to the angle β between the center line L1 of the first crescent exhaust port and the center line L4 of the sliding vane groove. The center line L1 of the first crescent exhaust port is also the center line of the first cylindrical cutter. This is because the first crescent exhaust port 21 is obtained by cutting it off through the intersection of the first cylindrical cutter and the cylinder body 1.

[0087] For example, in this embodiment of the application, the angle of the first crescent-shaped exhaust port 21 is less than or equal to 11°.

[0088] An 11° angle is used for example, which is smaller than the exhaust angle of the prior art. The exhaust angle of the existing crescent exhaust port is usually 13°. Therefore, compared with the relatively small first crescent exhaust angle of this application, the smaller the angle, the more beneficial it is to discharge the high-pressure gas at the exhaust tail, reduce the impact of the re-expansion of this high-pressure gas on the compressor intake, and at the same time improve the reliability of the compressor pump body parts.

[0089] Tests have shown that the existing pump using domestic patent CN 113464434 A has a volumetric efficiency of 91.95%, an indicated efficiency of 87.25%, and a coefficient of performance (COP) of 2.93. In contrast, the pump using the embodiment of this application has a volumetric efficiency of 92.56%, an indicated efficiency of 89.6%, and a COP of 3.02. The test data demonstrates that the pump using this application has higher volumetric efficiency and indicated efficiency, thus improving overall performance.

[0090] The beneficial effects of the embodiments of this application are as follows: The crescent-shaped exhaust port of this application includes a first crescent-shaped exhaust port, a second crescent-shaped exhaust port and a third crescent-shaped exhaust port. By setting multiple crescent-shaped exhaust ports, one end of the third crescent-shaped exhaust port is connected to the second crescent-shaped exhaust port and the other end is connected to the vane groove. It is possible to exhaust air using the first crescent-shaped exhaust port. Moreover, the third crescent-shaped exhaust port is processed between the second crescent-shaped exhaust port and the vane groove. This can reduce the clearance volume while effectively eliminating flanges and burrs, reducing the situation of excessive concentrated stress caused by flanges and burrs, and without increasing the clearance volume. This ensures the performance of the produced cylinders and compressors is qualified and improves the product qualification rate.

[0091] Furthermore, the third crescent-shaped exhaust port design prevents sharp notches from appearing when machining cylinder slide grooves (usually using a broach). This avoids the problem of broaches chipping at sharp notches, which significantly impacts tool performance. This reduces tool wear.

[0092] In addition, the angle β between the centerline of the first crescent exhaust port and the centerline of the vane groove is less than or equal to 11°, that is, the exhaust angle of the first crescent exhaust port is less than or equal to 11 degrees. This exhaust angle is smaller than that of the prior art. The crescent exhaust port is full of high-pressure gas. When the exhaust port angle is small, it is more conducive to the discharge of high-pressure gas at the tail of the cylinder, reducing the impact of the re-expansion of this part of high-pressure gas on the compressor intake volume, and also improving the reliability of the compressor pump body parts.

[0093] Example 3

[0094] The above embodiment two introduced a multi-crescent exhaust cylinder. This application embodiment will further invent and design the crescent exhaust port of embodiment three so that the crescent exhaust cylinder can improve the pump body efficiency, improve the compressor energy efficiency, and at the same time reduce the deformation and wear of machining tools, thereby improving production efficiency.

[0095] Figure 3 This is an enlarged structural schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0096] Figure 4 This is a schematic diagram of the exhaust angle of the enlarged structure A of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0097] Figure 5 This is an enlarged structural schematic diagram (after machining of the sliding vane groove) of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0098] Figure 8 This is a schematic diagram of the crescent-shaped exhaust process of the crescent-shaped exhaust cylinder shown in the embodiments of this application;

[0099] See Figure 3 , Figure 4 , Figure 5 and Figure 8 .

[0100] The multi-crescent exhaust cylinder of this application embodiment includes the structure of the above embodiment three, including a first crescent exhaust port 21, a second crescent exhaust port 22 and a third crescent exhaust port 23.

[0101] In this embodiment, the exhaust angle of the first crescent-shaped exhaust port 21 is β, specifically the angle between the centerline L1 of the first crescent-shaped exhaust port and the centerline L4 of the sliding vane groove. The first crescent-shaped exhaust port 21 is obtained by cutting it off through the intersection of the first cylindrical cutter and the cylinder body 1; as shown... Figure 9 As shown.

[0102] The centerline L1 of the first crescent-shaped vent is also the centerline of the first cylindrical tool, such as Figure 9 As shown.

[0103] β is less than or equal to 11°, and this application exemplarily uses 11°.

[0104] The exhaust angle of the second crescent-shaped exhaust port 22 is ε, specifically the angle between the centerline L2 of the second crescent-shaped exhaust port and the centerline L4 of the sliding vane groove. The second crescent-shaped exhaust port 22 is obtained by cutting it off through the intersection of the second cylindrical cutter and the cylinder body 1; as shown... Figure 10 As shown.

[0105] The centerline L2 of the second crescent-shaped vent is also the centerline of the second cylindrical cutter, such as Figure 10 As shown.

[0106] ε is less than or equal to 7°, and this application exemplarily uses 7°.

[0107] The exhaust angle of the third crescent-shaped exhaust port 23 is α, specifically the angle between the centerline L3 of the third crescent-shaped exhaust port and the centerline L4 of the sliding vane groove. The third crescent-shaped exhaust port 23 is obtained by cutting it off through the intersection of the third cylindrical cutter and the cylinder body 1; as shown... Figure 11 As shown.

[0108] The centerline L3 of the third crescent-shaped vent is also the centerline of the third cylindrical tool, such as Figure 11 As shown.

[0109] α is less than or equal to 5°, and this application exemplarily uses 5°.

[0110] The vane groove 4 intersects the inner circle of the cylinder at the second groove edge 42 and the first groove edge 41, as shown below. Figure 2 As shown,

[0111] The machined vane groove 4 intersects the inner circle of the cylinder at the second groove edge 42 and the first groove edge 41.

[0112] The point where the first contour edge of the second crescent exhaust port 22 intersects with the inner circle is the inner intersection point 221 of the second crescent. The second crescent exhaust port 22 is obtained by cutting through the intersection of the second cylindrical cutter and the cylinder body 1, and presents the contour edge line of the second crescent exhaust port 22. The first contour edge in this application refers to the contour edge close to the sliding vane groove 4, and the distance d from the second groove edge 42 to the inner intersection point of the second crescent is greater than or equal to 0.3 mm.

[0113] The outermost intersection point where the first contour edge of the second crescent exhaust port 22 intersects with the cylinder end face is the outermost intersection point of the second crescent 222;

[0114] The distance e from the second crescent outer point 222 to the sliding groove 4 is greater than or equal to 0.2 mm.

[0115] In this embodiment of the application, distance d is 0.3 mm and distance e is 0.2 mm.

[0116] If the distances d and e are too small, burrs and flanging are likely to occur. Setting the distances d and e within the range mentioned above can further reduce or prevent the occurrence of burrs.

[0117] The intersection point where the first contour edge of the third crescent exhaust port 23 intersects with the inner circle is the inner intersection point 231 of the third crescent; the inner intersection point 231 of the third crescent is the intersection point when the slide groove 4 is not machined.

[0118] The distance C from the inner intersection point 231 of the third crescent to the edge 41 of the first groove is greater than 0. This distance constraint ensures that the crescent exhaust port is located on one side of the sliding groove 4.

[0119] Furthermore, the intersection point where the first contour edge of the first crescent-shaped exhaust port 21 intersects with the inner circle is the inner intersection point 211 of the first crescent.

[0120] The distance b between the inner intersection point 211 of the first crescent and the inner intersection point 231 of the third crescent is less than the diameter of the flange vent hole. The flange vent hole is located on the flange, and the flange is located on the crescent vent cylinder.

[0121] The restriction of distance b allows the high-pressure gas discharged through the crescent-shaped exhaust port 2 to exit the cylinder unimpeded through the exhaust port on the flange.

[0122] The beneficial effects of this application embodiment are as follows: by further limiting the exhaust angle of the second crescent and the third crescent, the exhaust angle of the crescent exhaust cylinder can be further reduced as a whole. With the reduction of the exhaust angle, the crescent exhaust port is filled with high-pressure gas. The smaller the exhaust port angle, the more conducive it is to exhaust the high-pressure gas at the exhaust tail, reducing the impact of the re-expansion of this part of high-pressure gas on the compressor's intake volume, and at the same time improving the reliability of the compressor pump body parts.

[0123] By limiting the distances d and e, if the distances d and e are too small, burrs and flanging are likely to occur. Setting the distances d and e within the range of this application can further reduce or prevent the occurrence of burrs.

[0124] The design of the distance b allows the high-pressure gas discharged through the crescent-shaped exhaust port to be discharged from the cylinder without obstruction through the exhaust port on the flange.

[0125] Example 4

[0126] The crescent-shaped exhaust cylinder of this application embodiment can achieve the same function as that of Embodiment 1.

[0127] Figure 6 This is a schematic diagram of another implementation of the crescent-shaped exhaust cylinder shown in the embodiments of this application.

[0128] Figure 7 This is an enlarged structural schematic diagram of the crescent-shaped exhaust cylinder shown in the embodiment of this application (after machining the sliding vane groove).

[0129] See Figure 6 and Figure 7 .

[0130] Specifically, it includes a cylinder body 1, a crescent-shaped exhaust port 2, an intake port 3, and a sliding vane groove 4. The intake port 3, the crescent-shaped exhaust port 2, and the sliding vane groove 4 are all located on the cylinder body 1.

[0131] The vane groove 4 is located between the air inlet 3 and the crescent-shaped exhaust port 2;

[0132] The crescent-shaped exhaust port 2 includes a first crescent-shaped exhaust port 21, a second crescent-shaped exhaust port 22, and a third crescent-shaped exhaust port 23. The first crescent-shaped exhaust port 21 is positioned relative to the second crescent-shaped exhaust port 22, and the third crescent-shaped exhaust port 23 is positioned away from the slide groove 4. The second crescent-shaped exhaust port 22 and the third crescent-shaped exhaust port 23 are positioned relative to the first crescent-shaped exhaust port 21 and closer to the slide groove 4. One end of the second crescent-shaped exhaust port 22 is connected to the slide groove 4, and the other end is connected to the first crescent-shaped exhaust port 21. One end of the third crescent-shaped exhaust port 23 is connected to the chamfer 43 of the slide groove 4, and the other end is connected to the first crescent-shaped exhaust port 21.

[0133] The angle β between the centerline L1 of the first crescent-shaped exhaust port and the centerline L4 of the sliding vane groove is less than or equal to 11°. For example... Figure 4 As shown

[0134] The first crescent-shaped exhaust port 21 in this embodiment is mainly used for exhausting gas from the cylinder.

[0135] The third crescent-shaped exhaust port 23 of this application embodiment can effectively form a chamfer 43 with a special structure, thereby eliminating the burrs on the flange.

[0136] The second crescent exhaust port 22 has the functions of the first crescent exhaust port 21 and the third exhaust port. It can exhaust the cylinder and also remove the burrs and flakes when the third crescent exhaust port 23 is not completely cleaned.

[0137] By setting the third crescent exhaust port 23, the second crescent exhaust port 22 further ensures the exhaust effect of the cylinder, so that the high-pressure gas formed in the high-pressure chamber of the cylinder can be quickly discharged from the cylinder. In addition, the second crescent exhaust port 22 can also further eliminate the flanging and burrs of the machining slide groove 4.

[0138] The beneficial effects of the embodiments of this application are as follows: By setting multiple crescent-shaped exhaust ports, including a first crescent-shaped exhaust port, a second crescent-shaped exhaust port, and a third crescent-shaped exhaust port, the first crescent-shaped exhaust port is mainly used for exhaust, and the exhaust angle of the first crescent-shaped exhaust port is less than or equal to 11°. The small exhaust port angle is conducive to the discharge of high-pressure gas at the tail of the cylinder, reducing the impact of high-pressure gas re-expansion on the compressor's intake volume, and also improving the reliability of the compressor pump body parts.

[0139] The third crescent-shaped vent effectively forms a chamfered edge with a special structure, thereby eliminating burrs on the flange.

[0140] The second crescent-shaped exhaust port serves the functions of both the first and third crescent-shaped exhaust ports. It can exhaust gas from the cylinder and also remove burrs and flakes from the third crescent-shaped exhaust port if they are not completely removed.

[0141] Furthermore, this application embodiment also provides a compressor, which includes any of the crescent-shaped exhaust cylinders mentioned in the above embodiments. The compressor has the beneficial effects mentioned in the above embodiments, which will not be repeated in this application embodiment.

[0142] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A crescent-shaped exhaust cylinder, characterized in that, include: The cylinder body (1), crescent exhaust port (2), air inlet (3) and vane groove (4) are provided on the cylinder body (1); The sliding groove (4) is located between the air inlet (3) and the crescent-shaped exhaust port (2); The crescent-shaped exhaust port (2) includes a first crescent-shaped exhaust port (21), a second crescent-shaped exhaust port (22) and a third crescent-shaped exhaust port (23); The first crescent-shaped exhaust port (21) is positioned relative to the second crescent-shaped exhaust port (22), and the third crescent-shaped exhaust port (23) is positioned away from the slide groove (4); The second crescent-shaped exhaust port (22) is connected to the sliding groove (4), the first crescent-shaped exhaust port (21), and the third crescent-shaped exhaust port (23), respectively; The third crescent-shaped exhaust port (23) is connected to the chamfer (43) of the sliding groove (4) and the first crescent-shaped exhaust port (21).

2. A compressor, characterized in that: Includes the crescent-shaped exhaust cylinder as described in claim 1.

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