Air cylinder and compressor

Abstract

The utility model provides an air cylinder and a compressor, and the air cylinder comprises a compression cavity arranged in the outer wall of the air cylinder; the air suction channel is used for communicating the compression cavity with the liquid separator and comprises M air inlets and an air outlet; m is an integer greater than 1; the air outlet is simultaneously communicated with the M air inlets; the air inlet is communicated with the liquid separator, and the air outlet is communicated with the compression cavity. According to the air cylinder, the multiple air inlets are formed in the air suction channel and communicate with the air outlet, on the basis that the size and the structure of the air cylinder are kept unchanged, the design cost of the air cylinder is reduced, and the air suction amount of the air cylinder is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder structure design, in particular to a cylinder and a compressor. Background Art

[0002] With the development of technology, air-conditioning compressors are moving towards variable frequency control. Compared with large-displacement compressors, variable frequency compressors usually use smaller displacement to increase the operating frequency. The operating frequency of variable frequency compressors is getting higher and higher, and the adjustment range of the operating frequency is getting wider and wider. At the same time, with the market demand for low cost and high quality, variable frequency compressors are further developing towards miniaturization, and the size of the compressor body is also further reduced.

[0003] Small displacement and small body mean that the parts are also relatively small. Due to structural limitations, the channel between the compressor distributor and the cylinder compression chamber is insufficient, resulting in insufficient refrigerant intake by the compressor during high-frequency operation. Figure 1 As shown, it is a structural diagram of the compressor cylinder in the prior art. The cylinder includes: a compression chamber 12 arranged inside the outer wall 11 of the cylinder and an intake channel 10 for connecting the compression chamber and the liquid distributor; the intake channel 10 is arranged in the side area of ​​the slide groove 13. As the volume of the cylinder is reduced, the inner diameter of the intake channel is also reduced accordingly, which leads to insufficient intake volume of the compressor when it is running at high frequency, thereby resulting in insufficient capacity, affecting the normal operation of the compressor under high frequency operation. Utility Model Content

[0004] In order to overcome the problems existing in the related technology, one of the purposes of the present invention is to provide a cylinder. By arranging multiple air inlets in the intake channel, and the multiple air inlets are connected to the air outlet, the cylinder design cost is reduced and the cylinder intake volume is increased while maintaining the cylinder volume and structure unchanged.

[0005] A cylinder, comprising:

[0006] A compression chamber is provided inside the outer wall of the cylinder;

[0007] An air intake channel for connecting the compression chamber and the liquid distributor, the air intake channel comprising M air inlets and one air outlet; M is an integer greater than 1; and the air outlet is simultaneously connected to the M air inlets; the air inlet is connected to the liquid distributor, and the air outlet is connected to the compression chamber.

[0008] In this application, M air inlets are connected to one air outlet at the same time, and the M air inlets are connected to the refrigerant in the liquid distributor, and the air outlet is connected to the compression chamber inside the outer wall of the cylinder, ensuring that during the air intake process of the cylinder, the refrigerant is transmitted simultaneously by the M air inlets, thereby increasing the air intake volume of the cylinder; at the same time, the structure of this application is simple, and there is no need to change the original structure and design of the cylinder, and the miniaturization of the cylinder can be maintained. On the basis of maintaining the cylinder volume and structure unchanged, the air intake volume of the cylinder is significantly improved.

[0009] In a preferred technical solution of the present invention, the cross section of the compression chamber is circular, the outer wall of the cylinder is arranged around the outside of the compression chamber; the air intake channel is located in the outer wall of the cylinder;

[0010] The air intake channel includes a reference flow channel and M-1 auxiliary flow channels, the reference flow channel includes an air inlet and an air outlet, the auxiliary flow channel includes an air inlet, and the auxiliary flow channel is communicated with the reference flow channel.

[0011] This application ensures that the intake channel has two intake ports and one outlet by connecting the reference flow channel and the auxiliary flow channel inside the outer wall of the cylinder. The reference flow channel is the intake channel in the original cylinder structure, and only the auxiliary flow channel connected to it needs to be set around it. There is no need to change the volume of the original cylinder, and the balance relationship between the intake chamber and the compression chamber inside the compression chamber can be maintained. At the same time, the intake volume of the cylinder is significantly improved.

[0012] In a preferred technical solution of the present invention, the center line of the reference flow channel is parallel to the diameter of the compression chamber; the side of the M-1 auxiliary flow channels away from the air inlet deviates toward the reference flow channel, so that the side of the auxiliary flow channel away from the air inlet is connected to the reference flow channel.

[0013] The cross section of the compression chamber in the present application is circular, and the compression chamber is located inside the center of the cylinder. An air outlet connected to the compression chamber is provided in the reference flow channel. Therefore, the center line of the reference flow channel is designed to be parallel to the diameter direction of the compression chamber, which can better maintain the balance relationship between the suction chamber and the compression chamber inside the compression chamber. At the same time, the auxiliary flow channel does not need to be connected to the compression chamber, so that the air inlet side of the auxiliary flow channel can maintain an appropriate distance from the reference flow channel. At the same time, the auxiliary flow channel deviates away from the air inlet side toward the direction of the reference flow channel, and then at the position where the compression chamber is not reached, the auxiliary flow channel and the reference flow channel converge to form a reference flow channel and an auxiliary flow channel connected inside the outer wall of the cylinder.

[0014] In a preferred technical solution of the present invention, the center lines of the reference flow channel and the auxiliary flow channel are both parallel to the diameter of the compression chamber; and the reference flow channel and the auxiliary flow channel are connected via a connecting groove.

[0015] Because the cylinder's outer wall has a ring-like structure, designing the primary and auxiliary flow channels radially within the cylinder's outer wall facilitates flow channel molding, thereby increasing their efficiency. Furthermore, connecting the primary and auxiliary flow channels through a connecting groove allows multiple flow channels to be interconnected, achieving the goal of having separate air inlets and a shared outlet, thereby increasing the cylinder's intake capacity.

[0016] In a preferred technical solution of the present invention, the center lines of the auxiliary flow channel and the reference flow channel are both parallel to the diameter direction of the compression chamber; the center line of the connecting groove is parallel to the outer diameter of the compression chamber.

[0017] In the present application, the cross-sections of the reference flow channel and the auxiliary flow channel can be circular or in other shapes, that is, in the radial direction of the outer wall of the cylinder, the cross-sections of the reference flow channel and the auxiliary flow channel are circular. The axis or centerline of the reference flow channel and the auxiliary flow channel is parallel to the radial direction of the compression chamber. The connecting groove at the end of the auxiliary flow channel is distributed along the circumferential direction of the outer wall of the cylinder and has a certain width in the radial direction of the outer wall of the cylinder. This structural design can ensure smooth air intake in the suction channel, smooth transmission of the refrigerant, and further increase the suction volume of the suction channel.

[0018] In a preferred technical solution of the present invention, in the first direction, the size of the communication groove is greater than or equal to 0.75B; B refers to the inner diameter of the air inlet in the reference flow channel;

[0019] In the first direction, the distance between the center line of the communicating groove and the end of the auxiliary flow channel away from the air inlet is less than 5 mm; the first direction refers to the direction parallel to the diameter of the compression chamber.

[0020] The connecting groove has a certain width to ensure the smooth transmission and collection of the refrigerant between the auxiliary flow channel and the reference flow channel. This application sets that in the first direction, the size C of the connecting groove is greater than or equal to 0.75B; it can ensure that the smoothness of the collection of the refrigerant in the intake channel reaches the best, which helps to improve the intake volume and intake smoothness of the cylinder.

[0021] The closer the connecting groove is to the end of the auxiliary flow channel, the better the refrigerant collection effect of multiple flow channels. Therefore, this application limits the distance d between the center line of the connecting groove and the end of the auxiliary flow channel away from the air inlet to less than 5 mm, which can ensure the optimal collection smoothness of the refrigerant in the intake channel and help improve the intake volume and intake smoothness of the cylinder.

[0022] In a preferred technical solution of the present invention, in the second direction, the size of the connecting groove is greater than or equal to 0.5H; the second direction refers to the direction parallel to the axial centerline of the compression chamber; H refers to the size of the outer wall of the cylinder in the second direction.

[0023] The depth of the connecting groove refers to the dimension in the axial direction of the compression chamber. In this direction, the connecting groove has a certain depth. This application is limited to the second direction, and the dimension of the connecting groove is greater than or equal to 0.5H, which can ensure the best smoothness of the collection of the refrigerant in the intake channel, and help to improve the intake volume and intake smoothness of the cylinder.

[0024] In a preferred technical solution of the present invention, the connecting groove includes M-1 separating grooves, and the separating grooves are used to connect two adjacent auxiliary flow channels or to connect adjacent auxiliary flow channels and a reference flow channel;

[0025] The communication groove includes an integral through groove, and the integral through groove is distributed along the circumferential direction of the compression chamber, so that the reference flow channel and M-1 auxiliary flow channels are connected.

[0026] In a preferred technical solution of the present invention, it also includes a vane groove, the center line of which is parallel to the diameter of the compression chamber; the angle between the reference flow channel and the vane groove is smaller than the angle between the auxiliary flow channel and the vane groove.

[0027] In this application, the reference flow channel and the vane groove are designed to be relatively close, and the auxiliary flow channel is set on the side of the reference flow channel away from the vane groove. This can better maintain the balance relationship between the suction chamber and the compression chamber inside the compression chamber, and can increase the cylinder suction volume.

[0028] A second object of the present application is to provide a compressor comprising the cylinder as described above.

[0029] This application does not require changes to the original structure and design. By increasing the number of air inlets, the compressor's intake of refrigerant is significantly increased, thereby improving the compressor's operating stability under high-frequency operation conditions.

[0030] The beneficial effects of the utility model are:

[0031] The utility model provides a cylinder, comprising: a compression chamber arranged inside the outer wall of the cylinder, and an air intake channel for connecting the compression chamber and the liquid distributor; the air intake channel includes M air inlets and one air outlet; M is an integer greater than 1; and the air outlet is connected to the M air inlets at the same time; the air inlet is connected to the liquid distributor, and the air outlet is connected to the compression chamber. In the present application, the M air inlets are connected to one air outlet at the same time, and the M air inlets are connected to the refrigerant in the liquid distributor, and the air outlet is connected to the compression chamber inside the outer wall of the cylinder, ensuring that the refrigerant is transmitted simultaneously by the M air inlets during the air intake process, thereby increasing the air intake volume of the cylinder; at the same time, the present application has a simple structure, does not need to change the original structure and design of the cylinder, and can also maintain the miniaturization of the cylinder, and significantly increases the air intake volume of the cylinder while maintaining the cylinder volume and structure unchanged.

[0032] The compressor provided in the present application, which includes the above-mentioned cylinder, does not need to change the original structure and design. By increasing the number of air inlets, the compressor's intake volume of refrigerant is significantly increased, thereby improving the operating stability of the compressor under high-frequency operation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of a cylinder in the prior art;

[0034] Figure 2 Schematic diagram of the cylinder structure in Example 2;

[0035] Figure 3 Schematic diagram of the cylinder structure in Example 3;

[0036] Figure 4 Schematic diagram of the dimensions of the cylinder in Example 3;

[0037] Figure 5 Schematic diagram of the cylinder structure in Example 4;

[0038] Figure 6 Schematic diagram of the cylinder structure in Example 5;

[0039] Figure 7 This is a schematic diagram of the side dimensions of the cylinder structure in this application.

[0040] Reference numerals:

[0041] 10. Intake channel; 11. Cylinder outer wall; 12. Compression chamber; 13. Sliding vane groove; 14. Reference flow channel; 15. Auxiliary flow channel; 16. Air inlet; 17. Air outlet; 18. Connecting groove; 181. Separating through groove; 182. Integrated through groove. DETAILED DESCRIPTION

[0042] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0043] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. As used in this utility model and the appended claims, the singular forms "a," "the," and "the" are 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 and all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] Example 1

[0046] like Figure 2-Figure 7 As shown, the present application provides a cylinder, comprising:

[0047] A compression chamber 12 is provided inside the outer wall 11 of the cylinder;

[0048] An air intake channel is used to connect the compression chamber 12 and the liquid distributor, and the air intake channel includes M air inlets 16 and one air outlet 17; M is an integer greater than 1; and the air outlet 17 is connected to the M air inlets 16 at the same time; the air inlet 16 is connected to the liquid distributor, and the air outlet 17 is connected to the compression chamber 12.

[0049] A vane groove 13 is also provided in the outer wall 11 of the cylinder of the present application, and a vane is provided in the vane groove 13. A roller is provided inside the compression chamber 12. During the operation of the cylinder, the end of the vane is tightly pressed against the outer surface of the roller by relying on the pushing pressure of the spring. The vane and the roller divide the cavity in the cylinder into an intake chamber and a compression chamber 12. While the roller is driven to move by the rotation of the crankshaft, the vane performs reciprocating motion, and the cylinder repeats the actions of gas suction, compression and discharge, completing the basic functions of the compressor.

[0050] In order to ensure that the cylinder can stably repeat the gas intake, compression, and discharge actions, the present application needs to ensure that the cross-sectional area of ​​the air outlet 17, that is, the air outlet 17 on the side of the air intake passage that communicates with the compression chamber 12, remains unchanged. This is to maintain the equilibrium relationship between the air intake chamber and the compression chamber 12 within the specific volume of the cylinder outer wall 11. If the position and number of the air outlets 17 are arbitrarily changed, the equilibrium relationship between the air intake chamber and the compression chamber 12 within the compression chamber 12 cannot be maintained within the existing small volume and existing structure of the cylinder, resulting in the cylinder being unable to circulate in an orderly manner.

[0051] The core of this application is to improve the suction volume by changing the arrangement of the air inlets 16 in the suction channel in the cylinder outer wall 11, without changing the internal structure of the compression chamber 12 or the structure of the air outlet 17 and the slide groove 13 connected to the compression chamber 12. Specifically, this application provides multiple interconnected air inlets 16, and each of the multiple air inlets 16 is connected to the air outlet 17. In this way, during the cylinder suction process, multiple air inlets 16 can be sucked in simultaneously from the separator and discharged into the compression chamber 12 at the air outlet 17, thereby improving the cylinder's suction volume.

[0052] As a specific embodiment, the air intake channel in the present application may include multiple flow channels, each of which is provided with an air inlet 16, and the multiple flow channels share a common air outlet 17. The number of flow channels is M. In actual operation, M can be any integer greater than 1. Since the air intake channel is provided in the cylinder outer wall 11, the multiple flow channels can be distributed sequentially along the cylinder outer wall 11, or the multiple flow channels can be concentrated sequentially on the sides of the slide groove 13.

[0053] As another specific embodiment, the air intake channel in the present application may include multiple flow channels, each flow channel is provided with an air inlet 16, and the side of each flow channel away from the air inlet 16 approaches each other until they are connected inside the outer wall 11 of the cylinder to form an air outlet 17 connected to the compression chamber 12. That is to say, the air inlets 16 are respectively provided at one end of the multiple flow channels in the present application, and the other ends are gathered together to form the air outlet 17. The present application defines the side of the outer wall 11 of the cylinder away from the compression chamber 12 as the outer side of the cylinder, and the side close to the compression chamber 12 as the inner side of the cylinder. The side where the multiple flow channels are provided with the air inlet 16 is located on the outer side of the outer wall 11 of the cylinder, and the side where the multiple flow channels are gathered to form an air outlet 17 is located on the inner side of the outer wall 11 of the cylinder.

[0054] In actual operation, based on the existing cylinder volume and structural design, the number of flow channels is designed to be two or three, which can meet the intake volume of the cylinder under high-frequency operation.

[0055] The beneficial effects of this embodiment are: in this embodiment, M air inlets 16 are simultaneously connected to one air outlet 17, and the M air inlets 16 are connected to the refrigerant in the liquid distributor, and the air outlet 17 is connected to the compression chamber 12 inside the outer wall 11 of the cylinder, ensuring that during the air intake process of the cylinder, the refrigerant is simultaneously transmitted by the M air inlets 16, thereby increasing the air intake volume of the cylinder; at the same time, the structure of this application is simple, and there is no need to change the original structure and design of the cylinder, and the miniaturization of the cylinder can be maintained. On the basis of maintaining the cylinder volume and structure unchanged, the air intake volume of the cylinder is significantly increased.

[0056] Example 2

[0057] like Figure 2As shown, the cylinder provided in this application is described by taking M equal to 2 as an example, specifically including:

[0058] A compression chamber 12 is provided inside the outer wall 11 of the cylinder;

[0059] An air intake channel is used to connect the compression chamber 12 and the liquid distributor, and the air intake channel includes two air inlets 16 and one air outlet 17; and the air outlet 17 is connected to the two air inlets 16 at the same time; the air inlet 16 is connected to the liquid distributor, and the air outlet 17 is connected to the compression chamber 12.

[0060] Specifically, such as Figure 7 As shown, in this embodiment, the cross-section of the compression chamber 12 is circular, and the cylinder outer wall 11 is arranged on the outside of the compression chamber 12; the intake channel is located in the cylinder outer wall 11; the intake channel includes a reference flow channel 14 and an auxiliary flow channel 15, the reference flow channel 14 includes an air inlet 16 and an air outlet 17, the auxiliary flow channel 15 includes an air inlet 16, and the auxiliary flow channel 15 is connected to the reference flow channel 14.

[0061] This application defines the side of the cylinder outer wall 11 away from the compression chamber 12 as the outer side of the cylinder, and the side close to the compression chamber 12 as the inner side of the cylinder. In this application, the reference flow channel 14 is provided with an air inlet 16 on the outer side of the cylinder and an air outlet 17 on the inner side of the cylinder; the auxiliary flow channel 15 is located on the side of the reference flow channel 14, and the auxiliary flow channel 15 is only provided with an air inlet 16 on the outer side of the cylinder. Inside the cylinder outer wall 11, the auxiliary flow channel 15 does not penetrate the cylinder outer wall 11, that is, it does not connect the outer side of the cylinder with the inner side of the cylinder, but is connected to the reference flow channel 14, and the connection position must be inside the cylinder outer wall 11, that is, it does not reach the position of the compression chamber 12. The present application ensures that the intake channel has two intake ports and one outlet port 17 by connecting the reference flow channel 14 and the auxiliary flow channel 15 inside the outer wall 11 of the cylinder. The reference flow channel 14 is the intake channel in the original cylinder structure, and only the auxiliary flow channel 15 connected to it needs to be arranged around it. There is no need to change the volume of the original cylinder, and the balance relationship between the intake chamber inside the compression chamber 12 and the compression chamber 12 can be maintained, while significantly improving the intake volume of the cylinder.

[0062] Furthermore, the center line of the reference flow channel 14 in this embodiment is parallel to the diameter of the compression chamber 12; Figure 2 As shown, the side of the auxiliary flow channel 15 away from the air inlet 16 deviates toward the reference flow channel 14 , so that the side of the auxiliary flow channel 15 away from the air inlet 16 is connected to the reference flow channel 14 .

[0063] In the present application, the cross section of the compression chamber 12 is circular, and the compression chamber 12 is located inside the center of the cylinder. An air outlet 17 connected to the compression chamber 12 is provided in the reference flow channel 14. Therefore, the center line of the reference flow channel 14 is designed to be parallel to the diameter direction of the compression chamber 12, which can better maintain the balance between the suction chamber inside the compression chamber 12 and the compression chamber 12. At the same time, the auxiliary flow channel 15 does not need to be connected to the compression chamber 12, so that the air inlet 16 side of the auxiliary flow channel 15 can maintain an appropriate distance from the reference flow channel 14. At the same time, the auxiliary flow channel 15 deviates away from the air inlet 16 side toward the reference flow channel 14, and then at a position where it does not reach the compression chamber 12, the auxiliary flow channel 15 and the reference flow channel 14 converge to form the reference flow channel 14 and the auxiliary flow channel 15 connected inside the outer wall 11 of the cylinder.

[0064] It should be noted that, in this embodiment, the above description is illustrated using M=2 as an example. When M is an integer greater than 2, the position and structure of the reference flow channel 14 and the vane groove 13 remain unchanged. It is only necessary to shift the multiple auxiliary flow channels 15 toward the reference flow channel 14 in sequence until all the auxiliary flow channels 15 merge with the reference flow channel 14 before reaching the compression chamber 12.

[0065] Example 3

[0066] like Figure 3 As shown, the cylinder provided in this application is described by taking M equal to 2 as an example, specifically including:

[0067] A compression chamber 12 is provided inside the outer wall 11 of the cylinder;

[0068] An air intake channel is used to connect the compression chamber 12 and the liquid distributor, and the air intake channel includes two air inlets 16 and one air outlet 17; and the air outlet 17 is connected to the two air inlets 16 at the same time; the air inlet 16 is connected to the liquid distributor, and the air outlet 17 is connected to the compression chamber 12.

[0069] Specifically, such as Figure 7 As shown, in this embodiment, the cross-section of the compression chamber 12 is circular, and the cylinder outer wall 11 is arranged on the outside of the compression chamber 12; the intake channel is located in the cylinder outer wall 11; the intake channel includes a reference flow channel 14 and an auxiliary flow channel 15, the reference flow channel 14 includes an air inlet 16 and an air outlet 17, the auxiliary flow channel 15 includes an air inlet 16, and the auxiliary flow channel 15 is connected to the reference flow channel 14.

[0070] This application defines the side of the cylinder outer wall 11 away from the compression chamber 12 as the outer side of the cylinder, and the side close to the compression chamber 12 as the inner side of the cylinder. In this application, the reference flow channel 14 is provided with an air inlet 16 on the outer side of the cylinder and an air outlet 17 on the inner side of the cylinder; the auxiliary flow channel 15 is located on the side of the reference flow channel 14, and the auxiliary flow channel 15 is only provided with an air inlet 16 on the outer side of the cylinder. Inside the cylinder outer wall 11, the auxiliary flow channel 15 does not penetrate the cylinder outer wall 11, that is, it does not connect the outer side of the cylinder with the inner side of the cylinder, but is connected to the reference flow channel 14, and the connection position must be inside the cylinder outer wall 11, that is, it does not reach the position of the compression chamber 12. The present application ensures that the intake channel has two intake ports and one outlet port 17 by connecting the reference flow channel 14 and the auxiliary flow channel 15 inside the outer wall 11 of the cylinder. The reference flow channel 14 is the intake channel in the original cylinder structure, and only the auxiliary flow channel 15 connected to it needs to be arranged around it. There is no need to change the volume of the original cylinder, and the balance relationship between the intake chamber inside the compression chamber 12 and the compression chamber 12 can be maintained, while significantly improving the intake volume of the cylinder.

[0071] Furthermore, in this embodiment, the center lines of the reference flow channel 14 and the auxiliary flow channel 15 are parallel to the diameter of the compression chamber 12 ; the reference flow channel 14 and the auxiliary flow channel 15 are connected via a connecting groove 18 .

[0072] Because the cylinder outer wall 11 is a ring-like structure, designing the reference flow channel 14 and the auxiliary flow channel 15 in the radial direction within the cylinder outer wall 11 helps improve the ease of flow channel molding, thereby improving the molding efficiency of the reference flow channel 14 and the auxiliary flow channel 15. At the same time, the reference flow channel 14 and the auxiliary flow channel 15 are connected through the connecting groove 18, which can connect multiple flow channels together, achieving the purpose of providing separate air inlets 16 and sharing a single air outlet 17, thereby increasing the air intake capacity of the cylinder.

[0073] Furthermore, the center lines of the auxiliary flow channel 15 and the reference flow channel 14 are both parallel to the diameter direction of the compression chamber 12 ; and the center line of the communication groove 18 is parallel to the outer diameter of the compression chamber 12 .

[0074] In the present application, the cross-sections of the reference flow channel 14 and the auxiliary flow channel 15 are circular or other shapes, that is, in the radial direction of the cylinder outer wall 11, the cross-sections of the reference flow channel 14 and the auxiliary flow channel 15 are circular or other shapes. The axis or centerline of the reference flow channel 14 and the auxiliary flow channel 15 is parallel to the radial direction of the compression chamber 12. The connecting groove 18 at the end of the auxiliary flow channel 15 is distributed along the circumferential direction of the cylinder outer wall 11 and has a certain width in the radial direction of the cylinder outer wall 11. This structural design can ensure smooth air intake and transmission of the refrigerant in the suction channel, further improving the suction volume of the suction channel.

[0075] Further, such as Figure 4 As shown, in the first direction, the dimension C of the connecting groove 18 is greater than or equal to 0.75B; B refers to the inner diameter of the air inlet 16 in the reference flow channel 14. The distance d between the centerline of the connecting groove 18 and the end of the auxiliary flow channel 15 away from the air inlet 16 is less than 5 mm. The first direction refers to the direction parallel to the diameter of the compression chamber 12.

[0076] The connecting groove 18 has a certain width to ensure the smooth transmission and collection of the refrigerant between the auxiliary flow channel 15 and the reference flow channel 14. The present application sets the dimension C of the connecting groove 18 to be greater than or equal to 0.75B in the first direction, which can ensure the best collection smoothness of the refrigerant in the intake channel and help to improve the intake volume and intake smoothness of the cylinder.

[0077] The closer the connecting groove 18 is to the end of the auxiliary flow channel 15, the better the refrigerant collection effect of multiple flow channels. Therefore, the present application limits the distance d between the center line of the connecting groove 18 and the end of the auxiliary flow channel 15 away from the air inlet 16 to less than 5 mm, which can ensure the optimal collection smoothness of the refrigerant in the intake channel and help to improve the intake volume and intake smoothness of the cylinder.

[0078] Further, such as Figure 4 As shown, in the second direction, the size of the connecting groove 18 is greater than or equal to 0.5H; the second direction refers to the direction parallel to the axis of the compression chamber 12; H refers to the size of the cylinder outer wall 11 in the second direction.

[0079] The depth of the connecting groove 18 refers to the dimension in the axial direction of the compression chamber 12. In this direction, the connecting groove 18 has a certain depth. The present application is limited to the second direction, and the dimension of the connecting groove 18 is greater than or equal to 0.5H, which can ensure the best smoothness of the collection of the refrigerant in the intake channel, and help to improve the intake volume and intake smoothness of the cylinder.

[0080] Furthermore, this embodiment further includes a vane groove 13 , the center line of which is parallel to the diameter of the compression chamber 12 ; and the angle between the reference flow channel 14 and the vane groove 13 is smaller than the angle between the auxiliary flow channel 15 and the vane groove 13 .

[0081] Specifically, a vane is provided in the vane groove 13, and a roller is provided inside the compression chamber 12. During the operation of the cylinder, the end of the vane is tightly pressed against the outer surface of the roller by relying on the pushing pressure of the spring. The vane and the roller divide the cavity in the cylinder into an intake chamber and a compression chamber 12. While the roller is driven to move by the rotation of the crankshaft, the vane reciprocates, and the cylinder repeats the suction, compression and discharge of gas to complete the basic functions of the compressor.

[0082] In this application, the center lines of the vane groove 13 and the reference flow channel 14 are parallel to the diameter direction of the compression chamber 12, which helps to maintain the balance between the suction chamber and the compression chamber 12. At the same time, the angle between the reference flow channel 14 and the vane groove 13 is Figure 4 In a, the angle between the auxiliary flow channel 15 and the sliding vane groove 13 is Figure 4 That is, the present application designs the reference flow channel 14 and the vane groove 13 at relatively close positions, and arranges the auxiliary flow channel 15 on the side of the reference flow channel 14 away from the vane groove 13. This can better maintain the balance between the suction chamber inside the compression chamber 12 and the compression chamber 12, and can increase the cylinder suction volume.

[0083] Example 4

[0084] like Figure 5 As shown, the cylinder provided in this application is described by taking M equal to 3 as an example, specifically including:

[0085] A compression chamber 12 is provided inside the outer wall 11 of the cylinder;

[0086] An air intake channel is used to connect the compression chamber 12 and the liquid distributor, and the air intake channel includes three air inlets 16 and one air outlet 17; and the air outlet 17 is connected to the three air inlets 16 at the same time; the air inlet 16 is connected to the liquid distributor, and the air outlet 17 is connected to the compression chamber 12.

[0087] Specifically, such as Figure 7 As shown, in this embodiment, the cross-section of the compression chamber 12 is circular, and the cylinder outer wall 11 is arranged on the outside of the compression chamber 12; the intake channel is located in the cylinder outer wall 11; the intake channel includes a reference flow channel 14 and an auxiliary flow channel 15, the reference flow channel 14 includes an air inlet 16 and an air outlet 17, the auxiliary flow channel 15 includes an air inlet 16, and the auxiliary flow channel 15 is connected to the reference flow channel 14.

[0088] This application defines the side of the cylinder outer wall 11 away from the compression chamber 12 as the outer side of the cylinder, and the side closer to the compression chamber 12 as the inner side of the cylinder. In this application, the reference flow channel 14 is provided with an air inlet 16 on the outer side of the cylinder and an air outlet 17 on the inner side of the cylinder. The auxiliary flow channel 15 is located to the side of the reference flow channel 14 and is provided with an air inlet 16 only on the outer side of the cylinder. Inside the cylinder outer wall 11, the auxiliary flow channel 15 does not penetrate the cylinder outer wall 11.

[0089] In this embodiment, the center lines of the reference flow channel 14 and the auxiliary flow channel 15 are parallel to the diameter of the compression chamber 12; Figure 5 As shown, two adjacent auxiliary flow channels 15 or two adjacent auxiliary flow channels 15 and the reference flow channel 14 are connected via a separation groove 181 .

[0090] The center lines of the auxiliary flow channel 15 and the reference flow channel 14 are both parallel to the diameter direction of the compression chamber 12 ; the center line of the separation groove 181 is parallel to the outer diameter of the compression chamber 12 .

[0091] In the first direction, the dimension C of the partitioning groove 181 is greater than or equal to 0.75B, where B refers to the inner diameter of the air inlet 16 in the reference flow channel 14. The distance d between the centerline of the partitioning groove 181 and the end of the auxiliary flow channel 15 away from the air inlet 16 is less than 5 mm. The first direction refers to a direction parallel to the diameter of the compression chamber 12.

[0092] In the second direction, the size of the dividing groove 181 is greater than or equal to 0.5H; the second direction refers to the direction parallel to the axis of the compression chamber 12; H refers to the size of the cylinder outer wall 11 in the second direction.

[0093] This embodiment further includes a vane groove 13, the centerline of which is parallel to the diameter of the compression chamber 12; and the angle between the reference flow channel 14 and the vane groove 13 is smaller than the angle between the auxiliary flow channel 15 and the vane groove 13. In other words, this application places the reference flow channel 14 and the vane groove 13 relatively close together, while positioning the auxiliary flow channel 15 on the side of the reference flow channel 14 away from the vane groove 13. This effectively maintains a balanced relationship between the suction chamber within the compression chamber 12 and the compression chamber 12, and increases the cylinder's intake capacity.

[0094] Example 5

[0095] like Figure 6 As shown, the cylinder provided in this application is described by taking M equal to 3 as an example, specifically including:

[0096] A compression chamber 12 is provided inside the outer wall 11 of the cylinder;

[0097] An air intake channel is used to connect the compression chamber 12 and the liquid distributor, and the air intake channel includes three air inlets 16 and one air outlet 17; and the air outlet 17 is connected to the three air inlets 16 at the same time; the air inlet 16 is connected to the liquid distributor, and the air outlet 17 is connected to the compression chamber 12.

[0098] Specifically, such as Figure 7 As shown, in this embodiment, the cross-section of the compression chamber 12 is circular, and the cylinder outer wall 11 is arranged on the outside of the compression chamber 12; the intake channel is located in the cylinder outer wall 11; the intake channel includes a reference flow channel 14 and an auxiliary flow channel 15, the reference flow channel 14 includes an air inlet 16 and an air outlet 17, the auxiliary flow channel 15 includes an air inlet 16, and the auxiliary flow channel 15 is connected to the reference flow channel 14.

[0099] This application defines the side of the cylinder outer wall 11 away from the compression chamber 12 as the outer side of the cylinder, and the side closer to the compression chamber 12 as the inner side of the cylinder. In this application, the reference flow channel 14 is provided with an air inlet 16 on the outer side of the cylinder and an air outlet 17 on the inner side of the cylinder. The auxiliary flow channel 15 is located to the side of the reference flow channel 14 and is provided with an air inlet 16 only on the outer side of the cylinder. Inside the cylinder outer wall 11, the auxiliary flow channel 15 does not penetrate the cylinder outer wall 11.

[0100] In this embodiment, the center lines of the reference flow channel 14 and the auxiliary flow channel 15 are parallel to the diameter of the compression chamber 12; Figure 5 As shown, the two auxiliary flow channels 15 and the reference flow channel 14 are connected via an integrated through groove 182 .

[0101] The center lines of the auxiliary flow channel 15 and the reference flow channel 14 are both parallel to the diameter direction of the compression chamber 12 ; the center line of the integrated through groove 182 is parallel to the outer diameter of the compression chamber 12 .

[0102] In the first direction, the dimension C of the integral through-slot 182 is greater than or equal to 0.75B; B refers to the inner diameter of the air inlet 16 in the reference flow channel 14. The distance d between the centerline of the integral through-slot 182 and the end of the auxiliary flow channel 15 away from the air inlet 16 is less than 5 mm. The first direction refers to a direction parallel to the diameter of the compression chamber 12.

[0103] In the second direction, the size of the integrated through groove 182 is greater than or equal to 0.5H; the second direction refers to the direction parallel to the axis of the compression chamber 12; H refers to the size of the cylinder outer wall 11 in the second direction.

[0104] This embodiment further includes a vane groove 13, the centerline of which is parallel to the diameter of the compression chamber 12; and the angle between the reference flow channel 14 and the vane groove 13 is smaller than the angle between the auxiliary flow channel 15 and the vane groove 13. In other words, this application places the reference flow channel 14 and the vane groove 13 relatively close together, while positioning the auxiliary flow channel 15 on the side of the reference flow channel 14 away from the vane groove 13. This effectively maintains a balanced relationship between the suction chamber within the compression chamber 12 and the compression chamber 12, and increases the cylinder's intake capacity.

[0105] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0106] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0107] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0108] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0109] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cylinder, characterized in that: include: A compression chamber (12) is arranged inside the outer wall (11) of the cylinder; An air intake channel for connecting a compression chamber (12) and a liquid distributor, the air intake channel comprising M air inlets (16) and one air outlet (17); M being an integer greater than 1; and the air outlet (17) being simultaneously connected to the M air inlets (16); the air inlet (16) being connected to the liquid distributor, and the air outlet (17) being connected to the compression chamber (12).

2. A cylinder according to claim 1, characterized in that: The compression chamber (12) has a circular cross section, and the cylinder outer wall (11) is arranged around the outer side of the compression chamber (12); the air intake passage is located in the cylinder outer wall (11); The air intake channel comprises a reference flow channel (14) and M-1 auxiliary flow channels (15), the reference flow channel (14) comprises an air inlet (16) and an air outlet (17), the auxiliary flow channel (15) comprises an air inlet (16), and the auxiliary flow channel (15) is communicated with the reference flow channel (14).

3. A cylinder according to claim 2, characterized in that: The center line of the reference flow channel (14) is parallel to the diameter of the compression chamber (12); the side of the M-1 auxiliary flow channels (15) away from the air inlet (16) deviates toward the reference flow channel (14), so that the side of the auxiliary flow channel (15) away from the air inlet (16) is connected to the reference flow channel (14).

4. A cylinder according to claim 2, characterized in that: The center lines of the reference flow channel (14) and the auxiliary flow channel (15) are both parallel to the diameter of the compression chamber (12); the reference flow channel (14) and the auxiliary flow channel (15) are connected via a connecting groove (18).

5. A cylinder according to claim 4, characterized in that: The center lines of the auxiliary flow channel (15) and the reference flow channel (14) are both parallel to the diameter direction of the compression chamber (12); and the center line of the connecting groove (18) is parallel to the outer diameter of the compression chamber (12).

6. A cylinder according to claim 5, characterized in that: In the first direction, the size of the communication groove (18) is greater than or equal to 0.75B; B refers to the inner diameter of the air inlet (16) in the reference flow channel (14); In a first direction, the distance between the center line of the connecting groove (18) and the end of the auxiliary flow channel (15) away from the air inlet (16) is less than 5 mm; the first direction refers to a direction parallel to the diameter of the compression chamber (12).

7. The cylinder according to claim 5, characterized in that: In the second direction, the size of the connecting groove (18) is greater than or equal to 0.5H; the second direction refers to the direction parallel to the axis of the compression chamber (12); H refers to the size of the cylinder outer wall (11) in the second direction.

8. The cylinder according to claim 5, characterized in that: The communication groove (18) includes M-1 separation grooves (181), and the separation grooves (181) are used to connect two adjacent auxiliary flow channels (15) or to connect adjacent auxiliary flow channels (15) and a reference flow channel (14). The communication groove (18) includes an integral through groove (182), and the integral through groove (182) is distributed along the circumferential direction of the compression chamber (12), so that the reference flow channel (14) and the M-1 auxiliary flow channels (15) are in communication.

9. The cylinder according to claim 2, characterized in that: The invention also includes a vane groove (13), wherein the center line of the vane groove (13) is parallel to the diameter of the compression chamber (12); and the angle between the reference flow channel (14) and the vane groove (13) is smaller than the angle between the auxiliary flow channel (15) and the vane groove (13).

10. A compressor, characterized in that: A cylinder comprising any one of claims 1 to 9.

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