Air cylinder assembly, compressor and air conditioning unit

Abstract

The invention provides an air cylinder assembly, a compressor and an air conditioning unit, and the air cylinder assembly comprises a cylinder body, the roller is rotatably arranged in the compression cavity; the sliding piece is arranged in a sliding piece groove located in the cylinder body in a sliding mode, one end of the sliding piece abuts against the outer wall face of the roller, and a center shaft of the sliding piece is eccentrically arranged relative to the cylinder body central axis of the cylinder body. According to the air cylinder assembly, a part of torque load increased by extrusion of the sliding piece to the roller is dispersed to form wedge force, direct resistance of the sliding piece to rotation is reduced, and therefore the torque load formed by the sliding piece to the crankshaft is reduced, and the problem that in a rolling rotor type compressor in the related technology, the sliding piece extrudes the roller when the eccentric part of the crankshaft rotates is solved. And the torque load of the crankshaft and the power consumption of the compressor are increased.

Description

Technical Field

[0001] The invention relates to the technical field of rolling rotor compressors, and in particular to a cylinder assembly, a compressor and an air conditioning unit. Background Art

[0002] The rolling rotor compressor is mainly composed of two major parts: the pump body and the motor. Among them, the pump body assembly mainly includes the cylinder, crankshaft, roller, vane and upper and lower flanges. The pump body crankshaft and the motor rotor are interference fit, and the R-shaped end face of the vane is in line contact with the outer surface of the roller under the action of spring force and back pressure in the shell, thereby dividing the internal volume composed of the cylinder and the roller into two crescent-shaped suction chambers and compression chambers. The working principle of the rolling rotor compressor is that the crankshaft rotates periodically under the driving force of the motor, and drives the roller to rotate synchronously and eccentrically through its eccentric structure, thereby driving the vane to make radial reciprocating motion in the cylinder vane groove, so that the volume of the suction chamber and the compression chamber changes accordingly, thereby realizing the compressor's periodic suction, compression, and exhaust process.

[0003] As people's living standards continue to improve, the performance requirements for compressors are also rising. The vanes of traditional rolling rotor compressors point to the center of the crankshaft, and the heads are mostly designed with curved surfaces to fit the rollers. On the one hand, this design causes the vanes to squeeze the rollers when the eccentric part of the crankshaft rotates, increasing the torque burden of the crankshaft and thus increasing power consumption. On the other hand, the linear contact between the vanes and the rollers can easily cause mechanical loss at the contact point between the vanes and the rollers, increasing power consumption. Long-term high-load operation may also cause mechanical failure, leading to malfunctions.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a cylinder assembly, a compressor and an air-conditioning unit to solve the technical problem in the related art that the sliding vane squeezes the roller when the eccentric part of the crankshaft rotates in the rolling rotor compressor, resulting in increased crankshaft torque burden and compressor power consumption.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a cylinder assembly is provided, including a cylinder body, in which a compression chamber is arranged; a roller, which is rotatably arranged in the compression chamber; a slide, which is slidably arranged in a slide groove located in the cylinder body, and one end of the slide is in contact with the outer wall surface of the roller, wherein the center axis of the slide is eccentrically arranged relative to the center axis of the cylinder body.

[0007] Furthermore, the central axis of the sliding vane is eccentrically arranged relative to the central axis of the cylinder body toward a side close to the air intake port of the compression chamber.

[0008] Furthermore, a rotatably arranged slide roller is installed at one end of the slide close to the roller, and the slide roller is rollingly connected to the outer wall surface of the roller to reduce the friction loss between the slide and the roller.

[0009] Furthermore, the extending direction of the slider roller is consistent with the extending direction of the end surface of the slider.

[0010] Furthermore, the sliding plate comprises: a sliding plate roller groove, the sliding plate roller groove is opened at one end of the sliding plate close to the roller, and the sliding plate roller is rotatably arranged in the sliding plate roller groove.

[0011] Furthermore, the sliding vane includes: an oil outlet hole and an oil pipeline which are interconnected, the oil outlet hole is connected to the roller groove of the sliding vane, the oil pipeline is opened in the sliding vane, the oil outlet end of the oil pipeline is connected to the oil outlet hole, and the oil inlet end of the oil pipeline is connected to the oil storage chamber located outside the cylinder body.

[0012] Furthermore, the cylinder body includes an upper flange, and the oil pipeline includes: an oil guide groove, which is opened on the side of the sliding vane close to the upper flange, and the oil guide groove is connected with the oil storage chamber outside the cylinder body through an oil discharge hole opened in the upper flange; an oil hole, one end of the oil hole is connected with the oil guide groove, and the other end of the oil hole is connected with the oil outlet hole.

[0013] Furthermore, the cylinder assembly includes an oil guide groove, which is arranged on the inner wall surface of the upper flange of the cylinder body, and is connected to the oil storage chamber outside the cylinder body through an oil drain hole arranged in the upper flange; the oil pipeline includes an oil through hole, one end of the oil through hole is connected to the oil guide groove, and the other end of the oil through hole is connected to the oil outlet hole.

[0014] Furthermore, the oil storage cavity is arranged in the valve seat groove of the upper flange, and the valve seat groove is communicated with the inner cavity of the compressor.

[0015] Furthermore, the cylinder assembly includes: a cylinder roller, which is rotatably arranged in the sliding plate groove, and the cylinder roller is rollingly connected to the sliding plate on the side of the suction port of the compression chamber.

[0016] Furthermore, the cylinder assembly includes: a cylinder roller groove, the cylinder roller groove is opened in the slide groove, and the cylinder roller is rotatably arranged in the cylinder roller groove.

[0017] Furthermore, an avoidance groove is provided on the inner wall surface of the sliding vane groove, the avoidance groove is located on a side of the inner wall surface of the sliding vane groove close to the compression chamber, and a cylinder roller groove is provided in the avoidance groove.

[0018] Furthermore, the cylinder rollers include a plurality of cylinder rollers, and the plurality of cylinder rollers are arranged at intervals along the sliding direction of the sliding sheet.

[0019] Furthermore, the cylinder assembly includes: an auxiliary cylinder roller, which is rotatably arranged in the slide groove, and the auxiliary cylinder roller is rollingly connected to the side of the slide away from the suction port of the compression chamber.

[0020] Furthermore, the eccentric distance of the central axis of the sliding vane relative to the central axis of the cylinder body is L, and the eccentricity of the eccentric part of the crankshaft is H, wherein the value range of L is 0.13≤L / H≤0.21.

[0021] A compressor comprises the cylinder assembly as described above.

[0022] An air conditioning unit comprises the cylinder assembly as described above.

[0023] Beneficial effects:

[0024] 1. Compared with the prior art arrangement in which the vane is colinear with the center axis of the cylinder body, in this embodiment, the center line of the vane is misaligned with the center axis of the cylinder body, and the center line of the location where the vane groove is opened has a certain offset from the center axis of the cylinder body, so that the center axis of the vane is eccentrically arranged relative to the center axis of the cylinder body, and a part of the torque burden increased by the vane squeezing the roller is dispersed to form a wedge force, thereby reducing the direct resistance of the vane to the rotation of the roller, thereby reducing the torque burden of the vane on the crankshaft, and solving the technical problem in the related art that the vane squeezes the roller when the eccentric part of the crankshaft rotates, resulting in increased torque burden on the crankshaft and power consumption of the compressor.

[0025] 2. The central axis of the sliding vane is eccentrically arranged relative to the central axis of the cylinder body toward the suction port of the compression chamber. At this time, the torque burden of the sliding vane on the crankshaft is minimal.

[0026] 3. Change the vane head from the original line contact to roller contact to avoid contact friction at the vane-roller linear contact point, reduce the friction loss between the vane and the roller, and further improve the compressor performance.

[0027] 4. Cylinder rollers are provided to prevent contact friction between the vane and the vane groove, thereby reducing friction loss between the vane and the vane groove and improving the operation of the compressor.

[0028] 5. The refrigerant oil in the oil storage chamber outside the cylinder body is guided to the vane roller groove to lubricate the vane roller, so as to achieve the purpose of lubricating the vane roller groove and the vane roller as well as the vane and the vane groove. This can not only offset the generation of this part of the friction pair, but also reduce the friction loss between the vane-roller and the vane-vane groove due to the presence of the roller, thereby further improving the performance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the internal structure of a cylinder assembly used in an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 A magnified view of point A in FIG.

[0031] Figure 3 Schematic diagram of the structure of a cylinder body of a cylinder assembly used in an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the structure of the slide of the cylinder assembly used in the embodiment of the present invention;

[0033] Figure 5 yes Figure 4 A magnified view of point B in FIG.

[0034] Figure 6 is a cross-sectional view of a slide of a cylinder assembly used in an embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of the internal structure of a compressor used in an embodiment of the present invention;

[0036] Figure 8 Schematic diagram of the structure of the upper flange of the cylinder assembly used in the embodiment of the present invention;

[0037] Fig. 9 yes Figure 8 A magnified view of point C in FIG.

[0038] Fig.10 It is a schematic structural diagram of a cylinder assembly used in an embodiment of the present invention in which a sliding vane is eccentrically arranged on the suction side when the roller rotates clockwise;

[0039] Fig.11 yes Fig.10 Schematic diagram of force analysis in ;

[0040] Fig.12 It is a schematic structural diagram of a cylinder assembly used in an embodiment of the present invention, in which the sliding plate and the central axis of the cylinder body are arranged to coincide with each other when the roller rotates clockwise;

[0041] Fig.13 yes Fig.12 Schematic diagram of force analysis in ;

[0042] Fig.14 It is a schematic structural diagram of a cylinder assembly used in an embodiment of the present invention in which a sliding vane is eccentrically arranged on the exhaust side when the roller rotates clockwise;

[0043] Fig.15 yes Fig.14 Schematic diagram of force analysis in ;

[0044] Fig.16 is a schematic diagram of force analysis of a sliding plate of a cylinder assembly used in an embodiment of the present invention;

[0045] Fig.17 yes Fig.16 Magnified view at E in FIG.

[0046] The above drawings include the following reference numerals:

[0047] 10. Compression chamber; 20. Crankshaft; 30. Inner chamber; 1. Cylinder body; 11. Intake port; 12. Upper flange; 13. Oil drain hole; 14. Oil storage chamber; 2. Roller; 3. Sliding vane; 31. Sliding vane roller; 32. Sliding vane roller groove; 33. Oil outlet hole; 34. Oil guide groove; 35. Oil through hole; 4. Sliding vane groove; 41. Cylinder roller groove; 42. Avoidance groove; 5. Cylinder roller; 6. Roller centerline; 7. Cylinder body centerline. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0049] According to an embodiment of the present invention, a cylinder assembly is provided. Figures 1 to 17 , comprising: a cylinder body 1, in which a compression chamber 10 is arranged; a roller 2, which is rotatably arranged in the compression chamber 10; a sliding vane 3, which is slidably arranged in a sliding vane groove 4 located in the cylinder body 1, and one end of the sliding vane 3 abuts against the outer wall surface of the roller 2, wherein the central axis of the sliding vane 3 is eccentrically arranged relative to the cylinder body center axis 7 of the cylinder body 1.

[0050] Specifically, the roller 2 is connected to the crankshaft 20 , and the crankshaft 20 drives the roller 2 to rotate.

[0051] It is understandable that the slide vane 3 can slide freely along the center line direction of the slide vane slot 4. Due to the sealing arrangement of the contact surface between the slide vane 3 and the slide vane slot 4, the slide vane slot 4 is eccentrically arranged to achieve the eccentric arrangement of the center axis of the slide vane 3.

[0052] Compared with the prior art arrangement in which the vane 3 is colinear with the cylinder centerline 7, in the present embodiment, the centerline of the vane is misaligned with the cylinder centerline 7, and the centerline of the vane groove opening position has a certain offset from the cylinder centerline 7, so that the center axis of the vane 3 is eccentrically arranged relative to the cylinder centerline of the cylinder 1, and a part of the torque burden increased by the vane 3 squeezing the roller 2 is dispersed to form a wedge force, thereby reducing the direct resistance of the vane 3 to the rotation of the roller 2, thereby reducing the torque burden of the vane 3 on the crankshaft 20, and solving the technical problem in the related art that the vane squeezes the roller when the eccentric part of the crankshaft rotates in the rolling rotor type compressor, resulting in increased crankshaft torque burden and compressor power consumption.

[0053] In the cylinder assembly of this embodiment, see Figure 1-2 The central axis of the slide vane 3 is eccentrically arranged relative to the cylinder center axis 7 of the cylinder body 1 toward the side close to the suction port 11 of the compression chamber 10.

[0054] It should be noted that the eccentric direction of the slide 3 is determined by the rotation direction of the roller 2. When the rotation direction of the roller 2 changes, the suction and exhaust directions of the compression chamber will also change. For example, in this embodiment, see Figure 1 , roller 2 rotates clockwise, and the air inlet is located at the left half of cylinder body 1. Figure 1 In the figure, the slide vane 3 is eccentrically arranged on the left side of the cylinder body 1; when the rotation direction of the roller 2 changes to counterclockwise rotation, the air intake port is located at the right half of the cylinder body 1, and the slide vane 3 is eccentrically arranged on the right side of the cylinder body 1. In summary, no matter what the rotation direction is, the central axis of the slide vane 3 is eccentrically arranged relative to the cylinder body center axis 7 of the cylinder body 1 toward the side of the air intake port 11 close to the compression chamber 10.

[0055] Specifically, see Figure 10-11 When the roller rotates clockwise, the air inlet 11 is on the left side of the cylinder center axis 7. Fig.10 The middle slide 3 is eccentrically arranged on the left side of the cylinder center axis 7, see Fig.11 The torque force that roller 2 needs to overcome sliding plate 3 is F1; see Figure 12-13 , Fig.12 It is a sliding plate structure in the prior art. Fig.12 The central axis of the middle slide 3 is arranged to coincide with the central axis 7 of the cylinder body, see Fig.13 The torque force that roller 2 needs to overcome sliding plate 3 is F2; ​​see Figure 14-15 , Fig.14 The middle slide 3 is eccentrically arranged on the right side of the cylinder center axis 7. When the crankshaft 20 rotates to a certain angle, the center axis of the slide 3 is in line with the roller center axis 6. Fig.15 At this time, the torque force F2 of the vane 3 that the roller 2 needs to overcome is completely the force F1 of the vane 3 on the roller 2, that is, F1=F3. It can be seen that F1<F2<F3=F1. Therefore, when the roller rotates clockwise, the vane 3 is eccentrically set on the left side of the cylinder center axis 7, that is, the center axis of the vane 3 is eccentrically set relative to the cylinder center axis 7 of the cylinder 1 to the side close to the suction port 11 of the compression chamber 10. This design can achieve the best effect, and the torque burden brought by the vane 3 to the crankshaft 20 is minimized.

[0056] It should be noted that, although the eccentric setting of the vane 3 can disperse part of the torque burden increased by the extrusion roller 2 to form a wedge force, thereby reducing the direct resistance of the vane 3 to rotation, the formation of the wedge force will bring a larger friction pair to the vane-roller linear contact part and the vane-vane groove, and contact friction and friction loss are likely to occur between the vane 3 and the roller 2, and between the vane 3 and the vane groove 4, affecting the performance of the compressor. Therefore, in order to solve this problem, the following solution is further proposed.

[0057] In the cylinder assembly of this embodiment, see Figure 2 The end of the vane 3 close to the roller 2 is provided with a rotatable vane roller 31, which is connected to the outer wall of the roller 2 by rolling, so as to reduce the friction loss between the vane 3 and the roller 2. In this way, the original line contact of the vane 3 head is changed to roller contact, so as to avoid contact friction between the vane and roller linear contact part, reduce the friction loss between the vane 3 and the roller 2, and further improve the performance of the compressor.

[0058] In the cylinder assembly of this embodiment, see Figure 2 The extension direction of the vane roller 31 is consistent with the extension direction of the end of the vane 3 close to the roller 2. In this way, the vane roller 31 replaces the vane 3 and directly rolls with the outer wall of the roller 2, which can separate the compression chamber 10 into a high-pressure chamber and a low-pressure chamber on the one hand, and further avoid contact friction at the vane-roller linear contact part on the other hand.

[0059] In the cylinder assembly of this embodiment, see Figure 4-6 The slide 3 includes: a slide roller groove 32, which is opened at one end of the slide 3 close to the roller 2, and the slide roller 31 is rotatably arranged in the slide roller groove 32. Specifically, the shape of the slide roller groove 32 matches the slide roller 31, and the slide roller groove 32 can be used to accommodate the slide roller 31. During the sliding process of the slide 3, when the slide roller 31 rotates at a high speed, a low-pressure environment will be generated in the slide roller groove 32, thereby attracting more refrigeration oil into the slide roller groove 32, so that the refrigeration oil can evenly wrap the slide roller 31, thereby further offsetting the generation of the friction pair.

[0060] In the cylinder assembly of this embodiment, see Figure 4-6 The slide 3 includes: an oil outlet hole 33 and an oil pipeline which are interconnected, the oil outlet hole 33 is connected to the slide roller groove 32, the oil pipeline is opened in the slide 3, the oil outlet end of the oil pipeline is connected to the oil outlet hole 33, and the oil inlet end of the oil pipeline is connected to the oil storage chamber 14 located outside the cylinder body 1.

[0061] Through the above-mentioned arrangement, the refrigerant oil in the oil storage chamber 14 located outside the cylinder body 1 can be guided to the vane roller groove 32, so as to lubricate the vane roller 31. When the vane roller 31 rotates at high speed, a low-pressure environment will be generated in the oil outlet hole 33, and the oil pipeline is connected to the high-pressure chamber in the compressor casing. The pressure difference formed by the high-pressure environment in the casing and the low-pressure chamber in the cylinder, under the action of the pressure difference, the lubricating oil is continuously transported from the oil pipeline to the oil outlet hole 33, and transported to the gap around the vane and the gap between the vane roller groove and the vane roller, so as to achieve the purpose of lubricating the vane roller groove 32 and the vane roller 31 as well as the vane 3 and the vane groove 4. This not only offsets the generation of this part of the friction pair, but also reduces the friction loss between the vane-roller and the vane-vane groove due to the presence of the roller, thereby further improving the performance of the compressor.

[0062] In some embodiments, the oil outlet hole 33 is located in the middle of the vane roller groove 32 so that the vane roller 31 can be lubricated evenly.

[0063] The cross-sectional shape of the oil outlet hole 33 may include but is not limited to circular, rectangular, diamond-shaped and other cross-sectional shapes, and the number may be single or multiple.

[0064] It should be noted that the oil storage cavity 14 outside the cylinder body 1 may be the inner cavity 30 storing the refrigerant oil in the compressor, or may be the valve seat groove located at the upper flange 12 where the refrigerant oil is accumulated.

[0065] In the cylinder assembly of this embodiment, see Figure 7-9 The cylinder body 1 includes an upper flange 12, and the oil pipeline includes: an oil guide groove 34, which is provided on the side of the vane 3 close to the upper flange 12, and the oil guide groove 34 is connected to the oil storage chamber 14 outside the cylinder body 1 through the oil discharge hole 13 provided on the upper flange 12; and an oil through hole 35, one end of the oil through hole 35 is connected to the oil guide groove 34, and the other end of the oil through hole 35 is connected to the oil outlet hole 33. In this way, when the vane roller 31 rotates at a high speed, a low-pressure environment will be generated in the oil outlet hole 33 and the vane roller groove 32, and the oil guide groove 34 is connected to the high-pressure chamber in the compressor housing, and the lubricating oil is continuously transported from the oil guide groove 34 to the oil outlet hole 33 through the oil through hole 35 under the action of the pressure difference, so as to achieve the purpose of lubricating the vane roller groove 32 and the vane roller 31, as well as the vane 3 and the vane groove 4.

[0066] The oil guide groove 34 is a shallow groove, and the cross-section of the oil guide groove 34 may include but is not limited to a circular, rectangular, diamond-shaped, or other cross-sectional shapes.

[0067] In some embodiments, the extending direction of the oil hole 35 is consistent with the extending direction of the sliding plate roller groove 32 .

[0068] In the cylinder assembly of this embodiment, see Figure 1The cylinder assembly includes an oil guide groove 34, which is provided on the inner wall surface of the upper flange 12 of the cylinder body 1, and is connected to the oil storage chamber 14 outside the cylinder body 1 through the oil discharge hole 13 provided on the upper flange 12; the oil pipeline includes an oil through hole 35, one end of the oil through hole 35 is connected to the oil guide groove 34, and the other end of the oil through hole 35 is connected to the oil outlet hole 33. It can be understood that the oil guide groove 34 can also be directly provided on the inner wall surface of the upper flange 12 of the cylinder body 1, which can also play the role of guiding oil.

[0069] In the cylinder assembly of this embodiment, see Figure 7-9 The oil storage chamber 14 is arranged in the valve seat groove of the upper flange 12, and the valve seat groove is communicated with the inner cavity 30 of the compressor.

[0070] It should be noted that refrigerant oil will accumulate in the valve seat groove of the upper flange 12 during the operation of the compressor. When too much refrigerant oil accumulates in the valve seat groove, it will affect the sliding efficiency of the vane, and further affect the working performance of the compressor. Through the above-mentioned arrangement, not only can the vane roller 31 be lubricated and the friction loss caused by the high-speed movement of the vane 3 be reduced to improve the operation of the compressor, but on the other hand, the refrigerant oil accumulated in the valve seat groove can be cleared in time.

[0071] In the cylinder assembly of this embodiment, see Figure 2 The cylinder assembly includes: a cylinder roller 5, which is rotatably arranged in the slide groove 4, and the cylinder roller 5 is rollingly connected to the slide 3 on the side of the suction port 11 of the compression chamber 10.

[0072] It should be noted that see Figure 16-17 During the operation of the compressor, the vane 3 is subjected to the thrust F3 exerted by the high-pressure gas in the compression chamber 10, the reaction force F2 exerted by the roller 2 on the vane 3, and the decomposition force F4 of the wedge force exerted on the vane 3 after the vane 3 is eccentric. The combination of the above multiple forces makes the head of the vane 3 tend to move to the left, that is, the vane 3 (specifically, the end close to the roller 2) tends to tilt toward the suction port side, so that the vane 3 is easy to generate contact friction with the vane groove 4, thereby affecting the working efficiency of the vane 3. Fig.16 The D marked in the figure is the concentrated force point of the vane groove 4, that is, the side wall of the vane groove 4 on the suction side, especially the side wall at one end close to the compression chamber 10. Here, the vane 3 is prone to generate contact friction with the vane groove 4. Therefore, it is necessary to set a cylinder roller 5 here to prevent the vane 3 from generating contact friction with the vane groove 4, reduce the friction loss between the vane 3 and the vane groove 4, and improve the operation of the compressor.

[0073] It should be noted that by providing the oil outlet hole 33 and the oil pipeline, not only the vane roller 31 can be lubricated, but also the cylinder roller 5 and other parts can be lubricated during the reciprocating movement of the vane 3, thereby reducing the overall friction loss of the vane 3.

[0074] In the cylinder assembly of this embodiment, see Figure 2 The cylinder assembly includes: a cylinder roller groove 41, the cylinder roller groove 41 is opened in the slide groove 4, and the cylinder roller 5 is rotatably arranged in the cylinder roller groove 41. Through the above arrangement, the cylinder roller groove 41 is used to install the cylinder roller 5.

[0075] In the cylinder assembly of this embodiment, see Figure 2 The inner wall surface of the vane groove 4 is provided with an avoidance groove 42, which is located on the inner wall surface of the vane groove 4 near the compression chamber 10, and a cylinder roller groove 41 is provided in the avoidance groove 42. By providing the avoidance groove 42, the cylinder roller 5 is connected to the side of the vane 3 near the air inlet 11 of the compression chamber 10 by rolling, thereby avoiding the vane 3 from directly contacting the inner wall surface of the vane groove 4, and avoiding friction loss between the vane 3 and the vane groove 4.

[0076] In the cylinder assembly of this embodiment, the cylinder rollers 5 include a plurality of cylinder rollers 5 , and the plurality of cylinder rollers 5 are arranged at intervals along the sliding direction of the sliding sheet 3 .

[0077] It can be understood that a plurality of cylinder rollers 5 can be provided according to the actual load of the compressor.

[0078] In the cylinder assembly of this embodiment, the cylinder assembly includes: an auxiliary cylinder roller, which is rotatably arranged in the slide groove 4, and the auxiliary cylinder roller is rollingly connected to the side of the slide 3 away from the suction port 11 of the compression chamber 10.

[0079] Preferably, the auxiliary cylinder roller is rollingly connected to the tail portion of the slide vane 3 away from the air inlet 11 of the compression chamber 10 .

[0080] When the head of the slide 3 tends to move to the left, that is, the slide 3 (specifically the end close to the roller 2) tends to tilt toward the air intake port, the tail of the slide 3, that is, the end away from the roller 2, tends to move to the right, that is, the tail of the slide 3 tends to tilt toward the exhaust port, which will cause the tail of the slide 3 to generate contact friction with the side wall of the slide groove 4. By providing an auxiliary cylinder roller, the auxiliary cylinder roller is located on the side of the slide 3 close to the exhaust port of the compression chamber, that is, opposite to the cylinder roller 5, which can avoid the side of the slide 3 away from the air intake port 11 from generating contact friction with the slide groove 4, thereby further reducing the friction loss between the slide 3 and the slide groove 4.

[0081] In the cylinder assembly of this embodiment, see Figure 1-2The eccentric distance of the central axis of the slide vane 3 relative to the central axis of the cylinder body 1 is L, and the eccentricity of the eccentric part of the crankshaft 20 is H, wherein the value range of L is 0.13≤L / H≤0.21.

[0082] Specifically, the eccentric distance L is determined by the eccentricity of the crankshaft 20. The offset distance L cannot be too large, as a too large value will result in excessive wedge force. At the same time, the value cannot be too small, as a too small value will not significantly reduce the torque burden. The value of L depends on the value of H, and the relationship between L and H is as follows: 0.13≤L / H≤0.21.

[0083] In the compressor of this embodiment, the compressor includes the cylinder assembly as described above.

[0084] In the compressor of this embodiment, the central axis of the vane 3 is eccentrically arranged relative to the cylinder center axis 7 of the cylinder body 1, so that a part of the torque burden increased by the vane 3 squeezing the roller 2 is dispersed to form a wedge force, thereby reducing the direct resistance of the vane 3 to the rotation of the roller 2, thereby reducing the torque burden of the vane 3 on the crankshaft 20, and solving the technical problem in the related art that the vane squeezes the roller when the eccentric part of the crankshaft rotates in the rolling rotor compressor, resulting in increased crankshaft torque burden and compressor power consumption.

[0085] In the air conditioning unit of this embodiment, the air conditioning unit includes the cylinder assembly as described above.

[0086] In the air-conditioning unit of the present embodiment, the central axis of the vane 3 is eccentrically arranged relative to the central axis of the cylinder body 1, so that a part of the torque burden increased by the vane 3 squeezing the roller 2 is dispersed to form a wedge force, thereby reducing the direct resistance of the vane 3 to the rotation of the roller 2, thereby reducing the torque burden of the vane 3 on the crankshaft 20, and solving the technical problem in the related art that the vane of the rolling rotor compressor squeezes the roller when the eccentric part of the crankshaft rotates, resulting in increased crankshaft torque burden and compressor power consumption.

[0087] An optional embodiment of the present invention is described below in conjunction with the accompanying drawings:

[0088] In view of the torque resistance problem caused by the vane 3 to the rotation of the crankshaft 20 under the action of the spring force of the vane 3 and the back pressure in the shell, an eccentric design of the cylinder vane groove is adopted in this embodiment, and the central axis of the vane located therein is misaligned with the cylinder center axis 7 of the cylinder body 1, and the misalignment direction and distance are determined by the rotation direction and the eccentricity of the crankshaft respectively. This design can disperse part of the torque burden increased by the vane 3 squeezing the roller 2 to form a wedge force, thereby reducing the direct resistance of the vane 3 to the rotation. However, the formation of the wedge force will bring greater friction pairs to the vane-roller linear contact part and the vane-vane groove. Therefore, in view of this situation, the vane 3 head is changed from the original line contact to roller contact, and a cylinder roller 5 is also arranged on the suction side of the vane groove. The vane 3 body is provided with an oil circuit to provide lubrication between the vane roller groove 32 and the vane roller 31. In this way, not only can the generation of this part of the friction pair be offset, but also the friction loss between the vane-roller and the vane-vane groove can be reduced due to the presence of the vane roller 31, further improving the performance of the compressor.

[0089] The cylinder assembly includes a cylinder body 1 and a vane 3. The cylinder body 1 is provided with a vane groove 4, and the vane groove 4 is provided with a cylinder roller groove 41 and a cylinder roller 5 on the side of the air inlet 11, and the cylinder roller 5 is arranged in the cylinder roller groove 41. The center line of the position where the vane groove 4 is provided has a certain offset from the center axis 7 of the cylinder body. The offset depends on the eccentricity of the crankshaft 20. The vane 3 includes a vane body and a vane roller 31. The vane 3 has a vane roller groove 32 at the head, an oil guide groove 34 at the side, an oil outlet hole 33 at the center of the vane roller groove 32, and the oil outlet hole 33 is connected to the oil guide groove 34 through an oil through hole 35. The oil guide groove 34 can also be provided on the inner surface of the upper flange 12, and the vane roller 31 is arranged in the vane roller groove 32. The vane 3 is arranged in the vane groove 4, and one side of the vane 3 with the oil guide groove 34 is in contact with the upper flange 12, and the vane roller 31 is in contact with the roller 2, and the vane 3 can slide freely along the center line direction of the vane groove 4. When the compressor is started, the pressure difference formed by the high pressure environment in the shell and the low pressure chamber in the cylinder continuously transports the lubricating oil in the oil guide groove 34 to the gap around the vane and the gap between the vane roller groove 32 and the vane roller 31. At the same time, the original line contact between the vane 3 and the roller 2 is changed to rolling contact, which reduces the friction loss caused by the high-speed movement of the vane 3 and improves the operation of the compressor. The upper flange 12 is provided with an oil drain hole 13, which is located directly above the oil guide groove 34, and can timely drain the refrigerant oil accumulated in the valve seat groove to the oil guide groove 34.

[0090] See also Figure 3 In this embodiment, the cylinder body 1 is provided with a vane groove 4, the center line of the vane groove 4 is offset from the cylinder body center axis 7, and a cylinder roller groove 41 is provided on the side of the vane groove 4 close to the air intake port 11.

[0091] See also Figure 1-2 as well as Figure 4-6 The head of the slide 3 is provided with a slide roller groove 32 for placing the slide roller 31. An oil outlet hole 33 is provided in the center of the slide roller groove 32, and an oil guide groove 34 is provided on the side of the slide 3, and the oil guide groove 34 is a shallow groove. The oil through hole 35 is perpendicular to the plane where the oil guide groove 34 is located and is connected to the oil outlet hole 33. When the slide roller 31 rotates at high speed, a low-pressure environment will be generated in the oil outlet hole 33, and the oil guide groove 34 is connected to the high-pressure chamber in the shell. Under the action of the pressure difference, the lubricating oil or the refrigeration oil is continuously transported from the oil guide groove 34 to the oil outlet hole 33 through the oil through hole 35, thereby achieving the purpose of lubricating the slide roller groove 32 and the slide roller 31 as well as the slide 3 and the slide groove 4.

[0092] See also Figure 1-2 In this embodiment, the crankshaft 20 rotates clockwise, the vane slot 4 is arranged on the left side of the cylinder center axis 7, the offset distance is L, and the eccentricity of the crankshaft eccentric part is H. The offset distance L cannot be too large, which will lead to excessive wedge force, and the value cannot be too small, which will not significantly reduce the torque burden. The value of L depends on the value of H, and the relationship between L and H is as follows: 0.13≤L / H≤0.21.

[0093] The cross-section of the oil guide groove 34 may include, but is not limited to, circular, rectangular, diamond, and other cross-sectional shapes.

[0094] The cross-sectional shape of the oil outlet hole 33 may include but is not limited to circular, rectangular, diamond-shaped and other cross-sectional shapes, and the number may be single or multiple.

[0095] The number of cylinder rollers 5 can be multiple, and the setting positions are not specifically limited.

[0096] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0097] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0098] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0099] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0100] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A cylinder assembly, characterized in that: include: A cylinder body (1), wherein a compression chamber (10) is provided in the cylinder body (1); A roller (2), the roller (2) being rotatably disposed in the compression chamber (10); A slide (3), wherein the slide (3) is slidably disposed in a slide groove (4) located in the cylinder body (1), one end of the slide (3) abuts against the outer wall surface of the roller (2), wherein the center axis of the slide (3) is eccentrically disposed relative to the cylinder body center axis (7) of the cylinder body (1).

2. The cylinder assembly according to claim 1, characterized in that: The central axis of the sliding vane (3) is eccentrically arranged relative to the cylinder center axis (7) of the cylinder body (1) toward a side close to the air intake port (11) of the compression chamber (10).

3. The cylinder assembly according to claim 1 or 2, characterized in that: A rotatably arranged slide roller (31) is mounted on one end of the slide (3) close to the roller (2); the slide roller (31) is rollingly connected to the outer wall surface of the roller (2) to reduce friction loss between the slide (3) and the roller (2).

4. The cylinder assembly according to claim 3, characterized in that: The extending direction of the sliding plate roller (31) is consistent with the extending direction of the end surface of the sliding plate (3).

5. The cylinder assembly according to claim 3, characterized in that: The slide (3) comprises: A slide roller groove (32), wherein the slide roller groove (32) is opened at one end of the slide (3) close to the roller (2), and the slide roller (31) is rotatably arranged in the slide roller groove (32).

6. The cylinder assembly according to claim 5, characterized in that: The slide (3) comprises: An oil outlet hole (33) and an oil pipeline are connected to each other, the oil outlet hole (33) is connected to the sliding plate roller groove (32), the oil pipeline is opened on the sliding plate (3), the oil outlet end of the oil pipeline is connected to the oil outlet hole (33), and the oil inlet end of the oil pipeline is connected to the oil storage chamber (14) located outside the cylinder body (1).

7. The cylinder assembly according to claim 6, characterized in that: The cylinder body (1) comprises an upper flange (12), and the oil pipeline comprises: an oil guide groove (34), the oil guide groove (34) being formed on a side surface of the slide (3) close to the upper flange (12), the oil guide groove (34) being connected to an oil storage cavity (14) located outside the cylinder body (1) through an oil discharge hole (13) formed in the upper flange (12); An oil through hole (35), one end of the oil through hole (35) is communicated with the oil guide groove (34), and the other end of the oil through hole (35) is communicated with the oil outlet hole (33).

8. The cylinder assembly according to claim 6, characterized in that: The cylinder assembly comprises an oil guide groove (34), the oil guide groove (34) being formed on the inner wall surface of the upper flange (12) of the cylinder body (1), and the oil guide groove (34) being connected to an oil storage cavity (14) located outside the cylinder body (1) via an oil discharge hole (13) formed in the upper flange (12); The oil passage pipeline comprises an oil passage hole (35), one end of the oil passage hole (35) is communicated with the oil guide groove (34), and the other end of the oil passage hole (35) is communicated with the oil outlet hole (33).

9. The cylinder assembly according to claim 7, characterized in that: The oil storage cavity (14) is arranged in the valve seat groove of the upper flange (12), and the valve seat groove is communicated with the inner cavity (30) of the compressor.

10. The cylinder assembly according to claim 2, characterized in that: The cylinder assembly comprises: A cylinder roller (5), the cylinder roller (5) is rotatably disposed in the slide groove (4), and the cylinder roller (5) is rollingly connected to the slide (3) at a side of the air inlet (11) of the compression chamber (10).

11. The cylinder assembly according to claim 10, characterized in that: The cylinder assembly comprises: A cylinder roller groove (41), wherein the cylinder roller groove (41) is opened in the slide groove (4), and the cylinder roller (5) is rotatably arranged in the cylinder roller groove (41).

12. The cylinder assembly according to claim 11, characterized in that An avoidance groove (42) is provided on the inner wall surface of the vane groove (4), and the avoidance groove (42) is located on a side of the inner wall surface of the vane groove (4) close to the compression chamber (10), and the cylinder roller groove (41) is provided in the avoidance groove (42).

13. The cylinder assembly according to claim 10, characterized in that The cylinder rollers (5) include a plurality of cylinder rollers (5), which are arranged at intervals along the sliding direction of the sliding sheet (3).

14. The cylinder assembly according to claim 2, characterized in that The cylinder assembly comprises: An auxiliary cylinder roller is rotatably disposed in the slide groove (4), and the auxiliary cylinder roller is rollingly connected to the side of the slide (3) away from the air intake port (11) of the compression chamber (10).

15. The cylinder assembly according to claim 1, characterized in that The eccentric distance of the central axis of the slide (3) relative to the cylinder centerline (7) of the cylinder (1) is L, and the eccentricity of the eccentric part of the crankshaft (20) is H, wherein the value range of L is 0.13≤L / H≤0.

21.

16. A compressor, characterized in that: The compressor comprises the cylinder assembly according to any one of claims 1 to 15.

17. An air conditioning unit, characterized in that: The air conditioning unit comprises the cylinder assembly according to any one of claims 1 to 15.

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