Air cylinder assembly, compressor and air conditioner

Abstract

The utility model provides an air cylinder assembly, a compressor and an air conditioner, and the air cylinder assembly comprises a shell with a mounting cavity; the cylinder is positioned in the mounting cavity and is provided with a roller cavity and a slip sheet groove; the roller is mounted in the roller cavity, and the roller can be driven by the crankshaft to eccentrically rotate in the roller cavity; the at least two sliding sheets are mounted in the sliding sheet groove, and the at least two sliding sheets are sequentially arranged in the axial direction of the air cylinder; the at least two elastic pieces are installed in the sliding piece groove, the at least two elastic pieces and the at least two sliding pieces are arranged in a one-to-one correspondence mode, the end, close to the axis of the air cylinder, of any sliding piece abuts against the roller, the other end of any sliding piece abuts against the corresponding elastic piece, and the ends, away from the sliding pieces, of the elastic pieces abut against the inner wall of the shell. The number of the sliding sheets and the number of the elastic pieces in the air cylinder assembly are set to be at least two, so that the height of a single sliding sheet can be reduced, the stability of the sliding sheets is improved, the sliding sheets are prevented from inclining in the movement process, and the problem that a refrigerant leaks from the compressor is avoided.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a cylinder assembly, a compressor, and an air conditioner. Background Technology

[0002] An air conditioning compressor includes a cylinder and a sliding vane that moves within the cylinder. In related technologies, the cylinder contains only one sliding vane. With the miniaturization of compressors, the height of the cylinder increases, and the height of the sliding vane also increases. This leads to a decrease in the stability of the sliding vane, making it prone to tilting during movement and potentially causing refrigerant leakage. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first objective of this utility model is to provide a cylinder assembly.

[0005] The second objective of this invention is to provide a compressor.

[0006] The third objective of this utility model is to provide an air conditioner.

[0007] To achieve at least one of the above objectives, according to a first aspect of the present invention, a cylinder assembly is provided for use in a compressor. The compressor includes a crankshaft, and the cylinder assembly includes: a housing having a mounting cavity; a cylinder located within the mounting cavity, the cylinder having a roller cavity and a vane groove, the vane groove penetrating the cylinder wall in a direction away from the cylinder's axis; a roller installed in the roller cavity, the roller being connectable to the crankshaft and rotating eccentrically within the roller cavity under the drive of the crankshaft; and at least two vanes installed in the vane groove, the at least two vanes moving along the cylinder... The components are arranged axially in sequence; at least two elastic elements are installed in the slide groove, and at least two elastic elements are arranged in a one-to-one correspondence with at least two slides. The end of any slide near the axis of the cylinder abuts against the roller, and the other end abuts against the corresponding elastic element. The end of the elastic element away from the slide abuts against the inner wall of the housing. During the eccentric rotation of the roller, the roller pushes the slide to reciprocate in the slide groove. When the slide moves away from the axis of the cylinder, the slide squeezes the elastic element so that the elastic element generates a thrust on the slide along the axis toward the cylinder.

[0008] The application provides a cylinder assembly which can be used in a compressor. The cylinder assembly comprises a shell, a cylinder, a roller and at least two sliding vanes. The cylinder, the roller and the sliding vanes are all arranged in the shell. A crankshaft extends into the shell and is connected with the roller to drive the roller to rotate eccentrically. Specifically, the shell has a mounting cavity, the cylinder is arranged in the mounting cavity, the cylinder has a roller cavity, the roller is arranged in the roller cavity, the cylinder has an inlet and an outlet, the inlet and the outlet are both communicated with the roller cavity, and refrigerant can enter the roller cavity from the inlet and be discharged from the roller cavity from the outlet. The cylinder has a sliding vane groove, an elastic element and a sliding vane are arranged in the sliding vane groove, the sliding vane groove penetrates the wall of the cylinder in the direction away from the axis of the cylinder, one end of the sliding vane close to the axis of the cylinder is abutted with the roller, the other end of the sliding vane is abutted with the elastic element, and one end of the elastic element away from the sliding vane is abutted with the inner wall of the shell. Since the roller rotates eccentrically in the roller cavity under the drive of the crankshaft, the roller periodically pushes the sliding vane to reciprocate in the sliding vane groove. Specifically, when the roller pushes the sliding vane to move in the direction away from the axis of the cylinder, the sliding vane compresses the elastic element, and the elastic element generates a pushing force on the sliding vane in the direction towards the axis of the cylinder; when the roller moves away from the sliding vane, the elastic element has a restoring tendency and pushes the sliding vane to move in the direction towards the axis of the cylinder. In this way, the reciprocating movement of the sliding vane in the sliding vane groove can be realized.

[0009] Further, the roller and the inner wall of the roller cavity have an abutting region, and the part of the roller abutting with the inner wall of the roller cavity divides the roller cavity into two spaces, one of which is communicated with the inlet and the other of which is communicated with the outlet. When the roller rotates eccentrically in the roller cavity, the volume of the space communicated with the outlet decreases, the refrigerant in the space is compressed, and the compressed refrigerant is discharged from the outlet; at the same time, the volume of the space communicated with the inlet increases, and the external refrigerant enters the space through the inlet.

[0010] Understandably, as the radial dimension of the cylinder decreases, the height of the cylinder increases, and the height dimension of the sliding vane also increases. If the height of the sliding vane is too high, the sliding vane is prone to unstable movement and tilting. In order to improve the stability of the sliding vane, the number of sliding vanes is set to at least two, and the at least two sliding vanes are arranged in the sliding vane groove in the axial direction of the cylinder, i.e. the at least two sliding vanes are arranged in the height direction of the cylinder. Correspondingly, the number of elastic elements is at least two, and the number of elastic elements is the same as the number of sliding vanes, i.e. the sliding vanes and the elastic elements are arranged one by one. In this way, the height of a single sliding vane can be reduced, and the two ends of the sliding vane are subjected to the pushing force of the sliding vane and the pushing force of the roller respectively, so that the sliding vane can be kept stable in the sliding vane groove.

[0011] By setting the number of the sliding plates and the number of the elastic members in the cylinder assembly to at least two, the height of a single sliding plate can be reduced, and each sliding plate can be subjected to the thrust of the elastic member, thereby improving the stability of the sliding plate, avoiding the inclination of the sliding plate during movement, avoiding the problem of refrigerant leakage of the compressor, and improving the performance and reliability of the compressor.

[0012] According to the above-mentioned cylinder assembly of the utility model, the following distinguished technical features can also be provided:

[0013] In some technical solutions, optionally, any sliding plate has a limiting groove, and one end of the elastic member is installed in the corresponding limiting groove.

[0014] In this technical solution, the structure of the sliding plate and the cooperation mode of the elastic member and the sliding plate are limited. Any sliding plate has a limiting groove for limiting the elastic member. Specifically, the limiting groove is arranged at one end of the sliding plate away from the axis of the cylinder, and one end of the elastic member close to the sliding plate is installed in the limiting groove of the corresponding sliding plate. In this way, the limiting groove can limit the elastic member to avoid the elastic member moving along the height direction of the sliding plate, so that the elastic member remains in a relatively stable state, reducing the risk of separation of the elastic member and the sliding plate.

[0015] In some technical solutions, optionally, the cross section of the elastic member is annular, the limiting groove includes a first groove body and a second groove body arranged in sequence along the height direction of the sliding plate, a part of the elastic member is located in the first groove body, and a part of the elastic member is located in the second groove body; or the limiting groove is annular in shape.

[0016] In this technical solution, the structure of the limiting groove and the elastic member is limited. The elastic member can be a spring, and the cross section of the elastic member is annular. In order to adapt the shape of the limiting groove to the cross-sectional shape of the elastic member, the shape of the limiting groove is set to be annular which is adapted to the cross-sectional shape of the elastic member, or a first groove body and a second groove body are arranged in the limiting groove, and the first groove body and the second groove body are arranged in sequence along the height direction of the sliding plate. Specifically, when the width of the sliding plate is greater than the radial dimension of the elastic member, the limiting groove can be set as a groove with an annular shape, and one end of the elastic member is inserted into the annular limiting groove to limit the elastic member. When the width of the sliding plate is less than or equal to the radial dimension of the elastic member, an annular groove capable of accommodating the elastic member cannot be arranged on the sliding plate, therefore, the limiting groove is set to have a structure including the first groove body and the second groove body, and the first groove body and the second groove body are arranged in sequence along the height direction of the sliding plate, and the top and bottom of the end portion of the elastic member are installed in the first groove body and the second groove body respectively to limit the elastic member.

[0017] By setting the shape of the limiting groove as a ring-shaped groove that can be matched with the elastic member, or a structure including a first groove body and a second groove body, the elastic member can be more stably installed in the limiting groove, and the stability of the elastic member is further improved.

[0018] In some embodiments, the slide groove extends through the cylinder along the axial direction of the cylinder, and the sum of the heights of the at least two slides is less than the height of the cylinder.

[0019] In the technical solution, the size relationship between the slide and the cylinder is limited. Specifically, the slide groove extends through the cylinder along the axial direction of the cylinder, and the sum of the heights of the at least two slides is less than the height of the cylinder. In this way, a gap is left between the slide and the components at both ends of the cylinder, avoiding interference fit between the slide and the components at both ends of the cylinder. When the roller pushes the slide to move, the friction between the slide and the components at both ends of the cylinder can be reduced, which on the one hand can reduce the wear degree of the slide to prolong the service life of the slide, and on the other hand can reduce the energy loss generated by the slide when moving, thereby reducing the energy loss of the compressor.

[0020] In some embodiments, the height of the cylinder is H, the height of the slide is h, the number of the slides is N, N is a positive integer greater than or equal to 2, and H, h and N satisfy: 10 μm < H-Nh < 25 μm.

[0021] In the technical solution, the size relationship between the slide and the cylinder is further limited. The height of the cylinder is H, the height of the slide is h, the number of the slides is N, N is a positive integer greater than or equal to 2, and H, h and N satisfy: 10 μm < H-Nh < 25 μm. Understandably, if the difference between the sum of the heights of the slides and the height of the cylinder is too large, the slide will have a large movable space in the height direction of the cylinder, which will cause the slide to be unstable in the slide groove and generate a large noise during the movement of the slide. If the difference between the sum of the heights of the slides and the height of the cylinder is too small, a large friction force will be generated between the slide and the components at the top or bottom of the cylinder during the movement of the slide, which will increase the wear degree of the slide and cause a large energy loss during the movement of the slide. Therefore, the difference between the height H of the cylinder and the sum Nh of the heights of the slides is limited to a range of 10 μm to 25 μm, which on the one hand can reduce the movable space of the slide in the height direction of the cylinder to keep the slide stable, and on the other hand can reduce the friction force between the slide and the components at the top and bottom of the cylinder during the movement of the slide to reduce the wear degree of the slide and the energy loss generated during the movement of the slide.

[0022] In one possible technical solution, N is 2, i.e. the number of the slides is 2, and H and h satisfy: 10 μm < H-2h < 25 μm.

[0023] In some embodiments, the elastic member is a spring, and an outer diameter of an end of the elastic member in contact with the sliding sheet is d, and d and h satisfy: 0.3≤d / h≤1.

[0024] In this embodiment, the relationship between the size of the elastic member and the height of the sliding sheet is limited. The elastic member is a spring, and the outer diameter of an end of the elastic member in contact with the sliding sheet is d, and the height of the sliding sheet is h, and d and h satisfy: 0.3≤d / h≤1. Understandably, the higher the height of the sliding sheet, the smaller the length of the elastic member in contact with the sliding sheet, and the poorer the stability of the sliding sheet. In order to improve the stability of the sliding sheet, the present application limits 0.3≤d / h. In this way, the contact length of the elastic member and the sliding sheet can meet the requirements to ensure that the sliding sheet can remain stable during movement. Further, by limiting d / h≤1, the top and bottom of the end of the elastic member in contact with the sliding sheet can be in contact with the sliding sheet, avoiding the situation that the elastic member cannot contact the sliding sheet due to the excessive radial size of the elastic member.

[0025] In some embodiments, the height of the center line of the elastic member is the same as the height of the center line of the corresponding sliding sheet.

[0026] In this embodiment, the positional relationship between the elastic member and the sliding sheet is limited. Specifically, the height of the center line of the elastic member is the same as the height of the center line of the corresponding sliding sheet. In this way, the contact position of the elastic member and the sliding sheet tends to be the middle position of the sliding sheet, that is, the position of the sliding sheet subjected to the pushing force of the elastic member tends to be the middle position of the sliding sheet. In this way, the overall force of the sliding sheet can be balanced, and the phenomenon of the sliding sheet being deflected due to uneven force can be reduced, and the stability of the movement of the sliding sheet is further improved.

[0027] In some embodiments, the radial size of the elastic member gradually increases in the direction away from the axis of the cylinder.

[0028] In this embodiment, the structure of the elastic member is limited. Specifically, the radial size of the elastic member gradually increases in the direction away from the axis of the cylinder. The two ends of the elastic member are respectively in abutment with the sliding sheet and the inner wall of the shell, and the greater the abutment area of the elastic member and the shell, the higher the stability of the elastic member. The present application sets the shape of the elastic member to gradually increase in radial size in the direction away from the axis of the cylinder, so as to increase the abutment area of the elastic member and the shell, and further improve the stability of the elastic member, so that the elastic member can more stably provide support force to the sliding sheet, and the sliding sheet can stably move in the sliding sheet groove, avoiding the phenomenon of the sliding sheet being inclined.

[0029] In some embodiments, the slide groove comprises: a first groove segment, in which the slide is installed; and a second groove segment, which is located at an end of the first groove segment away from the roller, and in which the elastic member is installed, and the width of the second groove segment is greater than or equal to the width of the first groove segment.

[0030] In this embodiment, the structure of the slide groove is limited. The slide groove is used to accommodate at least a part of any slide and at least a part of any elastic member. In order to adapt the size of the slide groove to the slide and the elastic member, the slide groove is provided with two parts, i.e., the first groove segment and the second groove segment. Specifically, one end of the first groove segment is in communication with the roller cavity, the slide is installed in the first groove segment, and the width of the first groove segment is greater than the width of the slide and less than or equal to the width threshold. In this way, the width of the first groove segment is slightly greater than the width of the slide, which can reduce the friction between the slide and the groove wall of the first groove segment during the movement of the slide, and can also limit the slide in the first groove segment to prevent the slide from tilting during movement, thereby improving the stability of the slide.

[0031] Further, the second groove segment is located at an end of the first groove segment away from the roller, and the elastic member is installed in the second groove segment. One end of the second groove segment is in communication with the first groove segment, and the other end penetrates the wall of the cylinder. In this way, the two ends of the elastic member can be in abutment with the slide and the inner wall of the housing, respectively. The width of the second groove segment is greater than or equal to the width of the first groove segment, so that the first groove segment and the second groove segment can adapt to the width size of the slide and the radial size of the elastic member, respectively. The first groove segment and the second groove segment can limit the slide and the elastic member, respectively, while allowing the slide and the elastic member to move freely.

[0032] In some embodiments, the inner wall of the housing is provided with at least two limiting portions, which are arranged one-to-one with the elastic members and are adapted to the elastic members to limit the elastic members.

[0033] In this embodiment, the structure of the housing and the elastic member is limited. In order to further improve the stability of the elastic member, the housing is further provided with a structure for limiting the elastic member. Specifically, the inner wall of the housing is provided with a plurality of limiting portions, which can be protruding structures or recessed structures. The limiting portions are arranged one-to-one with the elastic members, and one end of any elastic member away from the slide is fitted into the corresponding limiting portion, thereby further improving the stability of the elastic member.

[0034] In one possible embodiment, the limiting portion is a protruding structure, and the cross section of the elastic member is annular. The limiting portion is inserted into the annular elastic member to limit the elastic member.

[0035] In another possible technical solution, the limiting portion is a groove structure, the shape of the limiting portion is close to the cross-sectional shape of the elastic member, and the end of the elastic member can be installed in the limiting portion of the groove structure to limit the elastic member.

[0036] In some technical solutions, optionally, the roller cavity is filled with a refrigerant, and the refrigerant is propane.

[0037] In this technical solution, the cylinder assembly is further limited. The roller cavity is filled with a refrigerant, the refrigerant can flow into and out of the cylinder from the gas inlet and the gas outlet of the cylinder, and the refrigerant is propane. Such a refrigerant has a large latent heat, and the propane refrigerant absorbs a large amount of heat during the phase change, so the refrigeration efficiency is high, and it is suitable for small compressors.

[0038] The second aspect of the utility model further provides a compressor, comprising: the cylinder assembly provided by the first aspect of the utility model; a crankshaft, the roller of the cylinder assembly is sleeved on the crankshaft, and the crankshaft can drive the roller to eccentrically rotate in the roller cavity of the cylinder assembly.

[0039] The application provides a compressor, which comprises a cylinder assembly and a crankshaft, part of the crankshaft is located in the cylinder assembly, a roller in the cylinder assembly is sleeved on the crankshaft and connected with the crankshaft, and the crankshaft can drive the roller to eccentrically rotate in the roller cavity of the cylinder assembly. The cylinder of the cylinder assembly has a gas inlet and a gas outlet, and the gas inlet and the gas outlet are communicated with the roller cavity. When the roller eccentrically rotates in the roller cavity, the refrigerant flows into the roller cavity from the gas inlet, and the roller extrudes part of the refrigerant to make the refrigerant flow out of the gas outlet.

[0040] The compressor provided by the second aspect of the utility model has all the beneficial effects of the cylinder assembly because the compressor comprises the cylinder assembly provided by the first aspect of the utility model.

[0041] In some technical solutions, optionally, the compressor further comprises: a first bearing, which is sleeved on the crankshaft and located at the top of the cylinder assembly; and a second bearing, which is sleeved on the crankshaft and located at the bottom of the cylinder assembly.

[0042] In this technical solution, the structure of the compressor is further limited. The compressor further comprises a first bearing and a second bearing, and the first bearing and the second bearing are used to support the crankshaft. Specifically, the crankshaft passes through the cylinder assembly, the first bearing is located at the top of the cylinder assembly, the first bearing is sleeved on the crankshaft and supports the crankshaft, the second bearing is located at the bottom of the cylinder assembly, and the second bearing is sleeved on the crankshaft and supports the crankshaft. By arranging the first bearing and the second bearing at the two ends of the cylinder assembly, the two ends of the crankshaft can be supported and positioned by the first bearing and the second bearing, so that the crankshaft can stably rotate.

[0043] In some embodiments, the compressor further comprises a first connecting member configured to connect the first bearing to the cylinder of the cylinder assembly, and a second connecting member configured to connect the second bearing to the cylinder of the cylinder assembly.

[0044] In this embodiment, the structure of the compressor is further defined. The compressor further comprises a first connecting member configured to connect the first bearing to the cylinder of the cylinder assembly, and a second connecting member configured to connect the second bearing to the cylinder of the cylinder assembly. By providing the first connecting member and the second connecting member in the compressor, the first bearing and the second bearing can be respectively installed and fixed by the first connecting member and the second connecting member. In one possible embodiment, the first connecting member and the second connecting member are threaded studs.

[0045] The third aspect of the present application also provides an air conditioner comprising the compressor of the second aspect of the present application.

[0046] The air conditioner of the third aspect of the present application comprises the compressor of the second aspect of the present application, and thus has all the advantages of the compressor.

[0047] The additional aspects and advantages of the present application will become apparent from the following description, or will be appreciated by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0048] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0049] Figure 1 Fig. 1 shows a structure schematic diagram of a cylinder assembly of one embodiment of the present application;

[0050] Figure 2 Fig. 2 shows a structure schematic diagram of a compressor of one embodiment of the present application.

[0051] In this embodiment, Figure 1 and Figure 2 The correspondence between the reference signs and the component names in the drawings is as follows:

[0052] 100 cylinder assembly, 110 housing, 111 mounting cavity, 120 cylinder, 121 roller cavity, 122 sliding vane groove, 123 first groove segment, 124 second groove segment, 130 roller, 140 sliding vane, 141 limiting groove, 142 first groove body, 143 second groove body, 150 elastic member, 200 compressor, 210 crankshaft, 220 first bearing, 230 second bearing, 240 first connecting member, 250 second connecting member. DETAILED DESCRIPTION

[0053] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be described in further detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0054] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways that are different from those described herein, and the scope of the present application is not limited to the specific embodiments disclosed below.

[0055] Reference will now be made to the following Figure 1 and Figure 2 descriptions of the cylinder assembly 100, the compressor 200 and the air conditioner provided according to some embodiments of the present application.

[0056] In an embodiment according to the present application, as shown in Figure 1 and Figure 2 , the present application provides a cylinder assembly 100, which is used in a compressor 200, and the compressor 200 includes a crankshaft 210. The cylinder assembly 100 includes a housing 110 having a mounting cavity 111, a cylinder 120 located in the mounting cavity 111, the cylinder 120 having a roller cavity 121 and a sliding vane groove 122, the sliding vane groove 122 penetrating the wall of the cylinder 120 in a direction away from the axis of the cylinder 120, a roller 130 installed in the roller cavity 121, the roller 130 being capable of being connected to the crankshaft 210 and eccentrically rotating in the roller cavity 121 under the driving of the crankshaft 210, at least two sliding vanes 140 installed in the sliding vane groove 122, the at least two sliding vanes 140 being arranged in sequence along the axial direction of the cylinder 120, and at least two elastic members 150 installed in the sliding vane groove 122, the at least two elastic members 150 being arranged in one-to-one correspondence with the at least two sliding vanes 140, one end of any sliding vane 140 close to the axis of the cylinder 120 abutting against the roller 130, the other end abutting against the corresponding elastic member 150, and one end of the elastic member 150 away from the sliding vane 140 abutting against the inner wall of the housing 110. During the eccentric rotation of the roller 130, the roller 130 pushes the sliding vane 140 to reciprocate in the sliding vane groove 122, and when the sliding vane 140 moves in a direction away from the axis of the cylinder 120, the sliding vane 140 presses the elastic member 150, so that the elastic member 150 generates a pushing force on the sliding vane 140 in a direction toward the axis of the cylinder 120.

[0057] The application provides a cylinder assembly 100 which can be used in a compressor 200. The cylinder assembly 100 comprises a housing 110, a cylinder 120, a roller 130 and at least two sliding vanes 140, wherein the cylinder 120, the roller 130 and the sliding vanes 140 are all installed in the housing 110, and a crankshaft 210 extends into the housing 110 and is connected with the roller 130 to drive the roller 130 to rotate eccentrically. Specifically, the housing 110 has a mounting cavity 111, the cylinder 120 is located in the mounting cavity 111, the cylinder 120 has a roller cavity 121, the roller 130 is installed in the roller cavity 121, the cylinder 120 has an inlet and an outlet, both the inlet and the outlet are communicated with the roller cavity 121, and refrigerant can enter the roller cavity 121 from the inlet and be discharged from the roller cavity 121 from the outlet. The cylinder 120 has a sliding vane groove 122, an elastic member 150 and the sliding vanes 140 are installed in the sliding vane groove 122, the sliding vane groove 122 penetrates the wall surface of the cylinder 120 in a direction away from the axis of the cylinder 120, one end of the sliding vanes 140 close to the axis of the cylinder 120 abuts against the roller 130, and the other end abuts against the elastic member 150, and one end of the elastic member 150 away from the sliding vanes 140 abuts against the inner wall of the housing 110. Since the roller 130 rotates eccentrically in the roller cavity 121 under the drive of the crankshaft 210, the roller 130 periodically pushes the sliding vanes 140 to move reciprocatingly in the sliding vane groove 122. Specifically, when the roller 130 pushes the sliding vanes 140 to move in a direction away from the axis of the cylinder 120, the sliding vanes 140 compress the elastic member 150, and the elastic member 150 generates a pushing force on the sliding vanes 140 in a direction towards the axis of the cylinder 120, and when the roller 130 moves away from the sliding vanes 140, the elastic member 150 has a restoring tendency and pushes the sliding vanes 140 to move in a direction towards the axis of the cylinder 120. In this way, the reciprocating movement of the sliding vanes 140 in the sliding vane groove 122 is realized.

[0058] Further, the roller 130 and the inner wall of the roller cavity 121 have an abutting region, and the part of the roller 130 abutting against the inner wall of the roller cavity 121 divides the roller cavity 121 into two spaces, one of which is communicated with the inlet and the other of which is communicated with the outlet. When the roller 130 rotates eccentrically in the roller cavity 121, the volume of the space communicated with the outlet decreases, and the refrigerant in the space is compressed and discharged from the outlet, and at the same time, the volume of the space communicated with the inlet increases, and external refrigerant enters the space through the inlet.

[0059] Understandably, as the radial dimension of the cylinder 120 decreases, the height of the cylinder 120 increases, and the height dimension of the sliding vane 140 also increases. If the height of the sliding vane 140 is too high, the sliding vane 140 is prone to unstable movement, and the sliding vane 140 is prone to tilting. In order to improve the stability of the sliding vane 140, the number of sliding vanes 140 is set to at least two, and the at least two sliding vanes 140 are arranged in the sliding vane groove 122 along the axial direction of the cylinder 120, that is, the at least two sliding vanes 140 are arranged along the height direction of the cylinder 120. Correspondingly, the number of elastic members 150 is at least two, and the number of elastic members 150 is the same as the number of sliding vanes 140, and the sliding vanes 140 and the elastic members 150 are arranged one by one. In this way, the height of a single sliding vane 140 can be reduced, and the two ends of the sliding vane 140 are subjected to the thrust of the sliding vane 140 and the thrust of the roller 130, so that the sliding vane 140 can be kept stable in the sliding vane groove 122.

[0060] By setting the number of sliding vanes 140 and the number of elastic members 150 in the cylinder assembly 100 to at least two, the height of a single sliding vane 140 can be reduced, and each sliding vane 140 can be subjected to the thrust of the elastic member 150, thereby improving the stability of the sliding vane 140, avoiding tilting of the sliding vane 140 during movement, avoiding leakage of refrigerant of the compressor 200, and improving the performance and reliability of the compressor 200.

[0061] In some embodiments, optionally, as shown in Figure 2 Any sliding vane 140 has a limiting groove 141, and one end of the elastic member 150 is installed in the corresponding limiting groove 141.

[0062] In this embodiment, the structure of the sliding vane 140 and the cooperation mode of the elastic member 150 and the sliding vane 140 are limited. Any sliding vane 140 has a limiting groove 141 for limiting the elastic member 150. Specifically, the limiting groove 141 is arranged at one end of the sliding vane 140 away from the axis of the cylinder 120, and one end of the elastic member 150 close to the sliding vane 140 is installed in the corresponding limiting groove 141 of the sliding vane 140. In this way, the limiting groove 141 can limit the elastic member 150, avoid the elastic member 150 moving along the height direction of the sliding vane 140, so that the elastic member 150 remains in a relatively stable state, and reduces the risk of separation of the elastic member 150 and the sliding vane 140.

[0063] In some embodiments, optionally, as shown in Figure 2As shown, the cross-section of the elastic member 150 is annular, and the limiting groove 141 includes a first groove 142 and a second groove 143 arranged sequentially along the height direction of the slide plate 140. A part of the elastic member 150 is located in the first groove 142 and a part of the elastic member 150 is located in the second groove 143; or the shape of the limiting groove 141 is annular.

[0064] In this embodiment, the structures of the limiting groove 141 and the elastic member 150 are defined. The elastic member 150 can be a spring, and the cross-section of the elastic member 150 is annular. In order to adapt the shape of the limiting groove 141 to the elastic member 150, this application sets the shape of the limiting groove 141 to be annular, which adapts to the cross-sectional shape of the elastic member 150. Alternatively, a first groove 142 and a second groove 143 can be provided in the limiting groove 141, and the first groove 142 and the second groove 143 can be arranged sequentially along the height direction of the slider 140. Specifically, when the width of the slider 140 is greater than the radial dimension of the elastic member 150, the limiting groove 141 can be set as an annular groove, and one end of the elastic member 150 extends into the annular limiting groove 141 to limit the elastic member 150. When the width of the slider 140 is less than or equal to the radial dimension of the elastic member 150, an annular groove that can accommodate the elastic member 150 cannot be provided on the slider 140. Therefore, the limiting groove 141 is configured to include a first groove 142 and a second groove 143. The first groove 142 and the second groove 143 are arranged sequentially along the height direction of the slider 140. The top and bottom of the end of the elastic member 150 are respectively installed in the first groove 142 and the second groove 143 to limit the elastic member 150.

[0065] By setting the shape of the limiting groove 141 to be an annular groove that can be adapted to the elastic member 150, or a structure including a first groove 142 and a second groove 143, the elastic member 150 can be installed more stably in the limiting groove 141, thereby further improving the stability of the elastic member 150.

[0066] In some embodiments, optionally, such as Figure 2 As shown, along the axial direction of the cylinder 120, the sliding vane groove 122 extends through the cylinder 120, and the sum of the heights of at least two sliding vanes 140 is less than the height of the cylinder 120.

[0067] In this embodiment, the size relationship between the sliding vane 140 and the cylinder 120 is defined. Specifically, along the axial direction of the cylinder 120, the sliding vane groove 122 penetrates the cylinder 120, and the sum of the heights of the at least two sliding vanes 140 is less than the height of the cylinder 120. In this way, a gap can be left between the sliding vane 140 and the components at both ends of the cylinder 120, avoiding interference fit between the sliding vane 140 and the components at both ends of the cylinder 120. When the roller 130 pushes the sliding vane 140 to move, the friction between the sliding vane 140 and the components at both ends of the cylinder 120 can be reduced, which on the one hand can reduce the wear degree of the sliding vane 140, thereby prolonging the service life of the sliding vane 140, and on the other hand can reduce the energy loss generated by the sliding vane 140 when moving, thereby reducing the energy loss of the compressor 200.

[0068] In some embodiments, as shown in FIG. 1, the height of the cylinder 120 is H, the height of the sliding vane 140 is h, and the number of the sliding vanes 140 is N, N being a positive integer greater than or equal to 2, and H, h and N satisfy: 10 μm < H-Nh < 25 μm. Figure 2 In this embodiment, the size relationship between the sliding vane 140 and the cylinder 120 is further defined. The height of the cylinder 120 is H, the height of the sliding vane 140 is h, and the number of the sliding vanes 140 is N, N being a positive integer greater than or equal to 2, and H, h and N satisfy: 10 μm < H-Nh < 25 μm. Understandably, if the difference between the sum of the heights of the sliding vanes 140 and the height of the cylinder 120 is too large, the sliding vanes 140 will have a large movable space in the height direction of the cylinder 120, which will cause the sliding vanes 140 to be unstable in the sliding vane groove 122 and generate a large noise during the movement of the sliding vanes 140. If the difference between the sum of the heights of the sliding vanes 140 and the height of the cylinder 120 is too small, a large friction will be generated between the sliding vanes 140 and the components at the top and bottom of the cylinder 120 during the movement of the sliding vanes 140, which will increase the wear degree of the sliding vanes 140 and cause a large energy loss during the movement of the sliding vanes 140. Therefore, the difference between the height H of the cylinder 120 and the sum Nh of the heights of the sliding vanes 140 is limited to the range of 10 μm to 25 μm, which on the one hand can reduce the movable space of the sliding vanes 140 in the height direction of the cylinder 120, so that the sliding vanes 140 remain stable, and on the other hand can reduce the friction between the sliding vanes 140 and the components at the top and bottom of the cylinder 120 during the movement of the sliding vanes 140, thereby reducing the wear degree of the sliding vanes 140 and the energy loss generated by the sliding vanes 140 during the movement.

[0069] In one possible embodiment, N is 2, i.e. the number of the sliding vanes 140 is 2, and H and h satisfy: 10 μm < H-2h < 25 μm.

[0070] In one possible embodiment, N is 2, i.e. the number of the sliding vanes 140 is 2, and H and h satisfy: 10 μm < H-2h < 25 μm.

[0071] In some embodiments, as shown in FIG. 1, the elastic member 150 is a spring, and the outer diameter of the end of the elastic member 150 in contact with the sliding sheet 140 is d, and d and h satisfy: 0.3≤d / h≤1. Figure 2 In some embodiments, as shown in FIG. 1, the elastic member 150 is a spring, and the outer diameter of the end of the elastic member 150 in contact with the sliding sheet 140 is d, and d and h satisfy: 0.3≤d / h≤1.

[0072] In this embodiment, the relationship between the size of the elastic member 150 and the height of the sliding sheet 140 is limited. The elastic member 150 is a spring, the outer diameter of the end of the elastic member 150 in contact with the sliding sheet 140 is d, the height of the sliding sheet 140 is h, and d and h satisfy: 0.3≤d / h≤1. Understandably, the higher the height of the sliding sheet 140, the smaller the length of the elastic member 150 in contact with the sliding sheet 140, and the poorer the stability of the sliding sheet 140. In order to improve the stability of the sliding sheet 140, the present application limits 0.3≤d / h. In this way, it can be ensured that the contact length of the elastic member 150 and the sliding sheet 140 meets the requirements to ensure that the sliding sheet 140 can remain stable during movement. Further, by limiting d / h≤1, the top and bottom of the end of the elastic member 150 in contact with the sliding sheet 140 can be in contact with the sliding sheet 140, avoiding the situation that the radial size of the elastic member 150 is too large and cannot contact the sliding sheet 140.

[0073] In some embodiments, as shown in FIG. 1, the height of the center line of the elastic member 150 is the same as the height of the center line of the corresponding sliding sheet 140.

[0074] In this embodiment, the positional relationship between the elastic member 150 and the sliding sheet 140 is limited. Specifically, the height of the center line of the elastic member 150 is the same as the height of the center line of the corresponding sliding sheet 140. In this way, the contact position of the elastic member 150 and the sliding sheet 140 tends to be the middle position of the sliding sheet 140, i.e., the position of the sliding sheet 140 subjected to the thrust of the elastic member 150 tends to be the middle position of the sliding sheet 140. In this way, the overall force on the sliding sheet 140 can be balanced, reducing the phenomenon that the sliding sheet 140 is deflected due to uneven force, and further improving the stability of the movement of the sliding sheet 140.

[0075] In some embodiments, as shown in FIG. 1, the radial size of the elastic member 150 gradually increases in the direction away from the axis of the cylinder 120.

[0076] In this embodiment, the structure of the elastic member 150 is defined. Specifically, the radial dimension of the elastic member 150 gradually increases in the direction away from the axis of the air cylinder 120. The two ends of the elastic member 150 are respectively in abutment with the sliding plate 140 and the inner wall of the housing 110. The greater the abutment area between the elastic member 150 and the housing 110, the higher the stability of the elastic member 150. By setting the shape of the elastic member 150 to gradually increase in radial dimension in the direction away from the axis of the air cylinder 120, the present application can increase the abutment area between the elastic member 150 and the housing 110, thereby improving the stability of the elastic member 150, so that the elastic member 150 can more stably provide support force to the sliding plate 140, and the sliding plate 140 can stably move in the sliding plate groove 122, avoiding the phenomenon of tilting of the sliding plate 140.

[0077] In some embodiments, optionally, as shown in Figure 1 The sliding plate groove 122 includes a first groove section 123, in which the sliding plate 140 is installed, and a second groove section 124 located at one end of the first groove section 123 away from the roller 130, which is used to install the elastic member 150, and the width of the second groove section 124 is greater than or equal to that of the first groove section 123.

[0078] In this embodiment, the structure of the sliding plate groove 122 is defined. The sliding plate groove 122 is used to accommodate at least a part of any sliding plate 140 and at least a part of any elastic member 150. In order to adapt the size of the sliding plate groove 122 to the sliding plate 140 and the elastic member 150, the present application sets the sliding plate groove 122 as two parts, the first groove section 123 and the second groove section 124. Specifically, one end of the first groove section 123 is in communication with the roller cavity 121, and the sliding plate 140 is installed in the first groove section 123. The width of the first groove section 123 is greater than that of the sliding plate 140 and less than or equal to a width threshold, so that the width of the first groove section 123 is slightly greater than that of the sliding plate 140, which on the one hand can reduce the friction force generated between the sliding plate 140 and the groove wall of the first groove section 123 during movement, and on the other hand can also limit the sliding plate 140 through the first groove section 123, avoiding the phenomenon of tilting of the sliding plate 140 during movement, and improving the movement stability of the sliding plate 140.

[0079] Further, the second groove segment 124 is located at an end of the first groove segment 123 away from the roller 130, the elastic member 150 is installed in the second groove segment 124, one end of the second groove segment 124 is communicated with the first groove segment 123, and the other end penetrates the wall surface of the cylinder 120, so that the two ends of the elastic member 150 can abut against the sliding vane 140 and the inner wall of the shell 110, respectively. The width of the second groove segment 124 is greater than or equal to the first groove segment 123, so that the first groove segment 123 and the second groove segment 124 can be adapted to the width dimension of the sliding vane 140 and the radial dimension of the elastic member 150, respectively, so that the first groove segment 123 and the second groove segment 124 can limit the sliding vane 140 and the elastic member 150, respectively, and the sliding vane 140 and the elastic member 150 can move freely.

[0080] In some embodiments, optionally, the inner wall of the shell 110 is provided with at least two limiting portions, the limiting portions are arranged one by one corresponding to the elastic members 150, and the limiting portions are adapted to the corresponding elastic members 150 to limit the elastic members 150.

[0081] In this embodiment, the cooperation structure of the shell 110 and the elastic member 150 is limited. In order to further improve the stability of the elastic member 150, the shell 110 is further provided with a structure for limiting the elastic member 150. Specifically, the inner wall of the shell 110 is provided with a plurality of limiting portions, which can be a convex structure or a groove structure, the limiting portions are arranged one by one corresponding to the elastic members 150, and one end of any elastic member 150 away from the sliding vane 140 is fitted into the corresponding limiting portion, thereby further improving the stability of the elastic member 150.

[0082] In a possible embodiment, the limiting portion is a convex structure, the cross section of the elastic member 150 is annular, and the limiting portion is inserted into the annular elastic member 150 to limit the elastic member 150.

[0083] In another possible embodiment, the limiting portion is a groove structure, the shape of the limiting portion is close to the cross-sectional shape of the elastic member 150, and the end of the elastic member 150 can be installed in the limiting portion of the groove structure to limit the elastic member 150.

[0084] In some embodiments, optionally, the roller cavity 121 is filled with a refrigerant, and the refrigerant is propane.

[0085] In this embodiment, the cylinder assembly 100 is further limited. The roller cavity 121 is filled with a refrigerant, the refrigerant can flow into and out of the cylinder 120 from the gas inlet and the gas outlet of the cylinder 120, and the refrigerant is propane. The latent heat of such refrigerant is large, and the propane refrigerant absorbs a large amount of heat during the phase change process, so the refrigeration efficiency is high, and it is suitable for small compressors 200.

[0086] AsFigure 2 The second aspect of the utility model also provides a compressor 200, comprising: the cylinder assembly 100 provided by the first aspect of the utility model; the crankshaft 210, the roller 130 of the cylinder assembly 100 is sleeved on the crankshaft 210, and the crankshaft 210 can drive the eccentric rotation of the roller 130 in the roller cavity 121 of the cylinder assembly 100.

[0087] The compressor 200 provided by the utility model comprises a cylinder assembly 100 and a crankshaft 210, part of the crankshaft 210 is located in the cylinder assembly 100, the roller 130 in the cylinder assembly 100 is sleeved on the crankshaft 210 and connected with the crankshaft 210, and the crankshaft 210 can drive the eccentric rotation of the roller 130 in the roller cavity 121 of the cylinder assembly 100. The cylinder 120 of the cylinder assembly 100 has an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the roller cavity 121, when the roller 130 rotates eccentrically in the roller cavity 121, the refrigerant flows into the roller cavity 121 from the air inlet, and the roller 130 extrudes part of the refrigerant to make the refrigerant discharge from the air outlet.

[0088] The compressor 200 provided by the second aspect of the utility model comprises the cylinder assembly 100 provided by the first aspect of the utility model, so the compressor 200 has all the beneficial effects of the cylinder assembly 100.

[0089] In some embodiments, optionally, as shown in the figure, Figure 2 As shown in the figure, the compressor 200 further comprises: a first bearing 220, which is sleeved on the crankshaft 210, and the first bearing 220 is located at the top of the cylinder assembly 100; and a second bearing 230, which is sleeved on the crankshaft 210, and the second bearing 230 is located at the bottom of the cylinder assembly 100.

[0090] In this embodiment, the structure of the compressor 200 is further limited. The compressor 200 further comprises a first bearing 220 and a second bearing 230, and the first bearing 220 and the second bearing 230 are used to support the crankshaft 210. Specifically, the crankshaft 210 penetrates through the cylinder assembly 100, the first bearing 220 is located at the top of the cylinder assembly 100, the first bearing 220 is sleeved on the crankshaft 210 and supports the crankshaft 210, the second bearing 230 is located at the bottom of the cylinder assembly 100, and the second bearing 230 is sleeved on the crankshaft 210 and supports the crankshaft 210. By arranging the first bearing 220 and the second bearing 230 at the two ends of the cylinder assembly 100 respectively, the two ends of the crankshaft 210 can be supported and positioned by the first bearing 220 and the second bearing 230, so that the crankshaft 210 can rotate stably.

[0091] In some embodiments, optionally, as shown in the figure, Figure 2As shown, the compressor 200 further comprises a first connecting member 240 for connecting the first bearing 220 with the cylinder 120 of the cylinder assembly 100, and a second connecting member 250 for connecting the second bearing 230 with the cylinder 120 of the cylinder assembly 100.

[0092] In this embodiment, the structure of the compressor 200 is further defined. The compressor 200 further comprises a first connecting member 240 for connecting the first bearing 220 with the cylinder 120 of the cylinder assembly 100, and a second connecting member 250 for connecting the second bearing 230 with the cylinder 120 of the cylinder assembly 100. By providing the first connecting member 240 and the second connecting member 250 in the compressor 200, the first bearing 220 and the second bearing 230 can be respectively mounted and fixed by the first connecting member 240 and the second connecting member 250. In a possible embodiment, the first connecting member 240 and the second connecting member 250 are threaded studs.

[0093] The third aspect of the present application also provides an air conditioner comprising the compressor 200 according to the second aspect of the present application.

[0094] The air conditioner according to the third aspect of the present application comprises the compressor 200 according to the second aspect of the present application, and thus has all the beneficial effects of the compressor 200.

[0095] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0096] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0097] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cylinder assembly, characterized by The cylinder assembly is used for a compressor, the compressor comprises a crankshaft, and the cylinder assembly comprises: a housing having a mounting cavity; a cylinder located in the mounting cavity, the cylinder having a roller cavity and a sliding vane slot penetrating through a wall surface of the cylinder in a direction away from an axial center of the cylinder; a roller installed in the roller cavity, the roller being capable of being connected to the crankshaft and eccentrically rotating in the roller cavity under the driving of the crankshaft; at least two sliding vanes installed in the sliding vane slot, the at least two sliding vanes being sequentially arranged in the axial direction of the cylinder; at least two elastic members installed in the sliding vane slot, the at least two elastic members being arranged in one-to-one correspondence with the at least two sliding vanes, any sliding vane being abutted against the roller at one end close to the axial center of the cylinder and being abutted against the corresponding elastic member at the other end, and an end of the elastic member away from the sliding vane being abutted against an inner wall of the housing; wherein, in the process of eccentric rotation of the roller, the roller pushes the sliding vanes to reciprocate in the sliding vane slot, and when the sliding vanes move in the direction away from the axial center of the cylinder, the sliding vanes press the elastic members, so that the elastic members generate a pushing force on the sliding vanes in the direction towards the axial center of the cylinder.

2. The cylinder assembly according to claim 1, wherein any sliding vane has a limiting slot, and one end of the elastic member is installed in the corresponding limiting slot.

3. The cylinder assembly according to claim 2, wherein a cross section of the elastic member is annular, the limiting slot comprises a first slot body and a second slot body sequentially arranged in the height direction of the sliding vane, a part of the elastic member is located in the first slot body, and a part of the elastic member is located in the second slot body; or a shape of the limiting slot is annular.

4. The cylinder assembly according to claim 1, wherein in the axial direction of the cylinder, the sliding vane slot penetrates through the cylinder, and a sum of heights of the at least two sliding vanes is less than a height of the cylinder.

5. The cylinder assembly according to claim 4, wherein the height of the cylinder is H, the height of the sliding vane is h, the number of the sliding vanes is N, N is a positive integer greater than or equal to 2, and H, h and N satisfy: 10 μm < H-Nh < 25 μm.

6. The cylinder assembly according to claim 5, wherein the elastic member is a spring, an outer diameter of one end of the elastic member in contact with the sliding vane is d, and d and h satisfy: 0.3 ≤ d / h ≤ 1.

7. The cylinder assembly according to any one of claims 1 to 6, wherein a height of a center line of the elastic member is the same as a height of a center line of the corresponding sliding vane.

8. The cylinder assembly according to any one of claims 1 to 6, wherein in the direction away from the axial center of the cylinder, a radial dimension of the elastic member gradually increases.

9. The cylinder assembly of any one of claims 1 to 6, wherein, the sliding vane slot comprises: a first slot section, in which the sliding vane is installed; a second slot section located at one end of the first slot section away from the roller, the second slot section being used for installing the elastic member, and a width of the second slot section being greater than or equal to that of the first slot section.

10. The cylinder assembly according to any one of claims 1-6, characterized in that, the inner wall of the shell is provided with at least two limiting portions, the limiting portions are provided one by one corresponding to the elastic members, and the limiting portions are adapted to the corresponding elastic members to limit the elastic members.

11. The cylinder assembly according to any one of claims 1-6, characterized in that, the roller cavity is filled with a refrigerant, and the refrigerant is propane.

12. A compressor characterized by, including: the cylinder assembly according to any one of claims 1-11; a crankshaft, the roller of the cylinder assembly is sleeved on the crankshaft, and the crankshaft can drive the roller to eccentrically rotate in the roller cavity of the cylinder assembly.

13. The compressor of claim 12, wherein, further including: a first bearing, sleeved on the crankshaft, and located at the top of the cylinder assembly; a second bearing, sleeved on the crankshaft, and located at the bottom of the cylinder assembly.

14. The compressor of claim 13, wherein, further including: a first connecting piece, used to connect the first bearing and the cylinder of the cylinder assembly; a second connecting piece, used to connect the second bearing and the cylinder.

15. An air conditioner characterized by comprising: including: the compressor according to any one of claims 12-14.

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