Rotor compressor and air conditioner

Abstract

The invention relates to a rotor compressor and an air conditioner, relates to the technical field of rotor compressors, and aims to solve the problem that a slip sheet in the rotor compressor is separated from a roller during low-frequency operation. The rotor compressor comprises a cylinder body, a rotor, a roller, a slip sheet and a connecting assembly. One end of the cylinder body is provided with a compression groove, and an air inlet, an air outlet and a sliding groove which are communicated with the compression groove. The rotor and the roller are arranged in the compression groove, and the roller is arranged on the outer side of the rotor in a sleeving mode so that the rotor of the eccentric structure can drive the roller to rotate along the side wall of the compression groove. The sliding piece is arranged in the sliding groove. One end of the slip sheet is in contact with the outer wall of the roller in the length direction of the slip sheet. The roller and the sliding piece divide the compression groove into an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated with the air inlet, and the air outlet cavity is communicated with the air outlet. In the length direction of the sliding piece, one end of the connecting assembly is connected with the sliding piece, and the other end of the connecting assembly is rotationally connected with the roller to prevent the sliding piece from being away from the roller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotary compressors, and in particular to a rotary compressor and an air conditioner. BACKGROUND

[0002] Rotary compressors have been widely applied in the fields of refrigeration and heating equipment such as air conditioners, refrigerators and heat pumps due to their compact structure, small size, light weight and high operating efficiency.

[0003] In the cylinder of a rotary compressor, the matching structure of the vane and the roller is the main moving component for realizing gas compression. In the working condition of low-frequency rotation of the roller, the stability of the movable vane is poor, and the contact force of the vane towards the roller is small, which causes the vane and the roller to be separated in the working condition of low-frequency rotation, thereby resulting in poor isolation and sealing effect between the inlet cavity and the outlet cavity, and thus poor compression efficiency of the compressor. SUMMARY

[0004] The present application provides a rotary compressor and an air conditioner to solve the problem that the vane in the rotary compressor is separated from the roller when the vane operates at low frequency.

[0005] In a first aspect, the present application provides a rotary compressor, which comprises a cylinder, a rotor, a roller, a vane and a connecting assembly. One end of the cylinder is provided with a compression groove, and an inlet, an outlet and a sliding groove in communication with the compression groove. The rotor and the roller are arranged in the compression groove, and the roller is sleeved on the outside of the rotor to drive the roller to rotate along the side wall of the compression groove. The vane is arranged in the sliding groove. One end of the vane is used to contact the outer wall of the roller along the length direction of the vane. The roller and the vane separate the compression groove into an inlet cavity and an outlet cavity, and the inlet cavity is in communication with the inlet, and the outlet cavity is in communication with the outlet. One end of the connecting assembly is connected with the vane along the length direction of the vane, and the other end of the connecting assembly is rotationally connected with the roller to prevent the vane from moving away from the roller.

[0006] In some embodiments, the connecting assembly comprises a positioning member and a connecting member. The positioning member is connected with the vane. One end of the connecting member is rotationally connected with the roller along the length direction of the vane, and the other end of the connecting member is inserted and fitted with the positioning member to prevent the vane from moving away from the roller.

[0007] In some embodiments, along the axial direction of the rotor, the positioning member is located on one side of the vane and is provided with an insertion groove, and the connecting member is inserted and fitted with the insertion groove. The connecting assembly comprises a first limiting portion and a second limiting portion, the inner side of the insertion groove is provided with the first limiting portion, and the vane is provided with the second limiting portion corresponding to the first limiting portion. The first limiting portion is one of a limiting groove and a positioning rib, and the second limiting portion is the other one of the limiting groove and the positioning rib, which is used to limit the freedom degree of the connecting member and the positioning member in the length direction of the vane.

[0008] In some embodiments, the connecting assembly comprises a buffer pad, the width of the limiting groove is greater than the width of the positioning rib along the length direction of the sliding sheet, and the buffer pad is arranged between the end of the connecting piece inserted into the inserting groove and the bottom wall of the inserting groove.

[0009] In some embodiments, the connecting assembly comprises at least two buffer pieces, the buffer pieces are balls or rollers, at least two grooves are arranged on the end surface of the connecting piece facing the buffer pad along the length direction of the sliding sheet, and the buffer piece is partially arranged in the groove and contacts the buffer pad.

[0010] In some embodiments, the buffer piece is arranged to roll between the groove and the buffer pad, and the included angle between the rolling direction of the buffer piece and the axial direction of the rotor is less than 40°.

[0011] In some embodiments, the roller comprises a rolling body and a connecting ring. The rolling body is arranged in the compression groove and rotates along the side wall of the compression groove. Along the axial direction of the rotor, the connecting ring and the connecting assembly are located on the same side of the rolling body, and the connecting ring is connected with the rolling body. Along the radial direction of the connecting ring, the outer side of the connecting ring is provided with a connecting groove in the circumferential direction. The end of the connecting piece facing the roller is inserted into the connecting groove and connected in rotation to prevent the sliding sheet from moving away from the roller.

[0012] In some embodiments, along the length direction of the sliding sheet, the end of the connecting piece facing the roller is sequentially provided with a first connecting part and a second connecting part. Along the axial direction of the rotor, the height of the first connecting part is smaller than the height of the second connecting part, the second connecting part is located in the connecting groove, and the second connecting part is limitedly matched with the side wall of the opening of the connecting groove to prevent the connecting piece from being separated from the connecting ring. The connecting ring is provided with an inserting notch in the axial direction, the inserting notch is in communication with the opening of the connecting groove and the opening of the connecting groove, and the inserting notch is used for inserting and assembling the first connecting part and the second connecting part.

[0013] In some embodiments, along the length direction of the sliding sheet, the thickness of the second connecting part is the first connection size. The connecting ring is provided with a positioning part at the inserting notch, the positioning part is located on the side of the inserting notch away from the rolling body along the axial direction of the connecting ring. Along the radial direction of the connecting ring, the gap between the positioning part and the side wall of the opening of the connecting groove is the second connection size, and the first connection size is smaller than the second connection size.

[0014] In some embodiments, along the radial direction of the connecting ring, the depth of the connecting groove is the third connection size, and the thickness of the side wall of the opening of the connecting groove is the fourth connection size. Along the length direction of the sliding sheet, the thickness of the first connecting part is the fifth connection size, and the difference between the fifth connection size and the fourth connection size is greater than the difference between the third connection size and the first connection size.

[0015] In some embodiments, the roller further comprises a cover plate assembly, the cover plate assembly comprising a first cover plate, a second cover plate and a plug-in buckle. One end of the first cover plate is connected perpendicularly to one end of the second cover plate. Along the circumference of the connecting ring, the plug-in buckle is arranged on opposite sides of the second cover plate. Along the axial direction of the connecting ring, a buckle groove is arranged on the two side walls of the opening, and the plug-in buckle is plug-in matched with the buckle groove.

[0016] In a second aspect, the embodiments of the present application provide an air conditioner comprising the rotary compressor in the first aspect.

[0017] Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following advantages: One end of the connecting assembly is connected to the slide plate along the length direction of the slide plate, and the other end of the connecting assembly is rotationally connected to the roller. Without affecting the free rotation of the roller, the position of the slide plate is fixed at the outer wall of the roller through the rotation connection point and the connecting assembly, so as to prevent the end surface of the slide plate from moving away from (or separating from) the outer side wall of the roller, thereby effectively inhibiting the separation phenomenon between the slide plate and the roller.

[0018] In this way, through the cooperation of the roller and the slide plate, the compression groove is dynamically divided into the intake cavity and the exhaust cavity, which are respectively communicated with the gas inlet and the gas outlet, so as to realize the isolation of the gas flow path. On this basis, through the arrangement of the connecting assembly, the end of the slide plate is in stable contact with the outer side wall of the roller to realize effective isolation of the intake cavity and the exhaust cavity. That is, by solving the problem of air tightness isolation during low-frequency operation, the overall operation efficiency and effect of the rotary compressor are improved. This design not only maintains the low power loss of the compressor under normal working conditions, but also improves the stability of the slide plate in the length direction thereof through the connecting assembly, so as to avoid the collision and noise problem caused by the separation of the slide plate and the roller during low-frequency operation. BRIEF DESCRIPTION OF DRAWINGS The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, which do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0021] Figure 1An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 2 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 1 A top view of the rotor compressor shown in the embodiment of the present application; Figure 3 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 2 A partial enlarged schematic diagram of the sliding vane shown in the embodiment of the present application; Figure 4 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 3 A three-dimensional structure schematic diagram of the sliding vane and the rolling assembly shown in the embodiment of the present application; Figure 5 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 2 A three-dimensional structure schematic diagram of the sliding vane shown in the embodiment of the present application; Figure 6 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 3 A sectional view of the oil guide channel shown in the embodiment of the present application; Figure 7 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 2 A partial enlarged schematic diagram of the cylinder body near the sliding groove shown in the embodiment of the present application; Figure 8 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 9 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 5 A partial enlarged schematic diagram of A in the embodiment of the present application; Figure 10 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 11 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 8 A three-dimensional structure schematic diagram of the connecting piece shown in the embodiment of the present application; Figure 12 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 8 A partial enlarged schematic diagram of the connecting piece and the connecting ring shown in the embodiment of the present application; Figure 13 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application; Figure 8 A partial enlarged schematic diagram of the connecting ring at the insertion gap shown in the embodiment of the present application; Figure 14 An internal structure schematic diagram of a rotor compressor provided by the embodiment of the present application;

[0022] Explanation of reference signs: 100, Rotary compressor; 10, Cylinder; 11, Compression groove; 111, Intake cavity; 112, Discharge cavity; 12, Intake port; 13, Discharge port; 14, Slide groove; 15, Rolling groove; 161, Reset cavity; 162, Oil guide channel; 163, Support column; 20, Rotor; 30, Roller; 31, Rolling body; 32, Connecting ring; 321, Connecting groove; 322, Insertion notch; 323, Positioning part; 324, Buckling groove; 33, Cover plate; 331, First cover plate; 332, Second cover plate; 333, Insertion buckle; 40, Elastic member; 50, Slider; 51, Protruding part; 60, Rolling assembly; 61, Rolling member; 62, Positioning groove; 70, Connecting assembly; 71, Positioning member; 72, Connecting member; 721, First connecting part; 722, Second connecting part; 73, Insertion groove; 741, First limiting part; 742, Second limiting part; 743, Buffer pad; 744, Buffer member; d1, First size; d2, Second size; d3, Third size; d4, Fourth size; d5, Fifth size; L1, First connecting size; L2, Second connecting size; L3, Third connecting size; L4, Fourth connecting size; L5, Fifth connecting size. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be used to clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of the specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and it does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0025] For ease of description, spatial relative terms can be used herein to describe the relative position relationship or movement condition of one element or feature with respect to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", and the like. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or reversed, or the orientation of the device is changed, the indicative directions will also change accordingly, for example: the element described as "under" or "below" another element or feature will be subsequently oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both upward and downward positions. The device can be additionally oriented (rotated by 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0026] Due to the compact structure, small volume, light weight and high running efficiency of the rotor compressor, it has been widely used in air conditioning, refrigerator, heat pump, air compressor and air pump fields.

[0027] As shown in Figure 1 and Figure 2 The rotor compressor 100 provided by the embodiment of the present application includes a cylinder body 10, a rotor 20, a roller 30, an elastic member 40 and a sliding vane 50. One end of the cylinder body 10 is provided with a compression groove 11, and the cylinder body 10 is further provided with an air inlet 12, an air outlet 13 and a sliding groove 14 in communication with the compression groove 11. The rotor 20 and the roller 30 are arranged in the compression groove 11, and the roller 30 is sleeved outside the rotor 20, so that the eccentric structure of the roller 30 drives the rotor 20 to rotate along the side wall of the compression groove 11.

[0028] The sliding vane 50 is arranged in the sliding groove 14, so that the sliding vane 50 can reciprocate in the sliding groove 14. The reciprocating direction of the sliding vane 50 in the sliding groove 14 is the length direction of the sliding vane 50. Along the length direction of the sliding vane 50, the elastic member 40 in the compression state is arranged between one end of the sliding vane 50 and the cylinder body 10, so that the other end of the sliding vane 50 is used to contact the outer wall of the roller 30. In this way, the compression groove 11 can be divided into an air inlet cavity 111 and an air outlet cavity 112 by the roller 30 and the sliding vane 50, the air inlet cavity 111 is in communication with the air inlet 12, and the air outlet cavity 112 is in communication with the air outlet 13.

[0029] Under the driving of the rotor 20, the roller 30 rotates along the side wall of the compression groove 11, and the action force applied to the roller 30 by the elastic member 40 enables the sliding vane 50 to be close to the side wall of the roller 30, so as to separate the compression groove 11 into the intake cavity 111 and the exhaust cavity 112. Since the part of the rotor 20 located in the compression groove 11 is an eccentric structure, and the outer diameter of the roller 30 is smaller than the inner diameter of the compression groove 11, in the process of the roller 30 rotating along the side wall of the compression groove 11, the gas is sucked into the intake cavity 111 from the intake port 12, and the gas in the intake cavity 111 enters the exhaust cavity 112 and is compressed through the rotation of the roller 30, and the high-pressure gas is discharged through the exhaust port 13.

[0030] For example, a one-way exhaust valve structure is arranged at the exhaust port 13, so that the compressed gas can be smoothly discharged from the exhaust port 13 after reaching a preset pressure, and the gas is prevented from being sucked back into the exhaust cavity 112 through the exhaust port 13.

[0031] In the cylinder body 10, the roller 30 is driven by the rotor 20 to rotate along the side wall of the compression groove 11, so that the sliding vane 50 moves back and forth along the length direction of the sliding groove 14. In this process, the sliding vane 50 is provided with a downward pressure by the elastic member 40, so that one end of the sliding vane 50 can stably contact and fit the outer side wall of the roller 30, thereby separating the intake cavity 111 and the exhaust cavity 112 on both sides of the sliding vane 50.

[0032] However, since the sliding vane 50 and the sliding groove 14 are in a sliding fitting structure, the sliding vane 50 has a large sliding friction resistance in the process of reciprocating movement. Especially in the low-frequency operating condition, since the lubricating oil cannot fully infiltrate the sliding vane 50 and the sliding groove 14, the wear speed of the sliding vane 50 is further increased. The large sliding friction resistance increases the heating effect of the compressor and affects the air-tight contact structure between the sliding vane and the roller.

[0033] In addition, in the working condition of low-frequency rotation of the roller 30, since the sliding vane 50 has poor stability and the contact force of the sliding vane 50 to the roller 30 is small, the roller 30 and the sliding vane 50 can be separated in the low-frequency operating condition, thereby causing poor isolation and sealing effect between the intake cavity 111 and the exhaust cavity 112, and thus causing poor compression efficiency of the compressor.

[0034] Based on this, as shown in Figure 1 and Figure 14 , the application provides a rotor compressor and an air conditioner to solve the above problems of the rotor compressor.

[0035] Embodiment one As shown in Figure 3 and Figure 4As shown, the rotary compressor 100 further comprises a rolling assembly 60 arranged between the vane 50 and the side wall of the sliding groove 14 to enable at least partial rolling contact between the vane 50 and the side wall of the sliding groove 14.

[0036] For example, the vane 50 can be made of rigid material with rectangular cross section, and one end of the vane 50 in length direction can be designed as arc shape or flat surface to better fit the outer wall of the roller 30. The other end of the vane 50 can be connected to the cylinder 10 through the elastic member 40, which can be a spring or other elastic mechanical structure. The elastic member 40 provides continuous thrust to keep the vane 50 in contact with the roller 30.

[0037] The rolling assembly 60 arranged between the vane 50 and the sliding groove 14 is used to change the friction form of the vane 50 from sliding to rolling. Without lubrication, the sliding friction coefficient ranges from 0.1 to 0.8, while the rolling friction coefficient is usually 0.001-0.1, i.e. the rolling friction coefficient is more than one order of magnitude smaller than the sliding friction coefficient, which can significantly reduce the friction resistance between the vane 50 and the side wall of the sliding groove 14, thereby reducing energy loss and improving the motion stability of the vane 50.

[0038] That is, by arranging the rolling assembly 60 between the vane 50 and the side wall of the sliding groove 14, the vane 50 and the side wall of the sliding groove 14 are at least partially in rolling contact. That is, the traditional sliding friction is changed to rolling friction, thereby significantly reducing the friction resistance when the vane 50 moves. When the roller 30 rotates under the action of the eccentric structure, the vane 50 moves back and forth along the sliding groove 14 under the thrust of the elastic member 40. The presence of the rolling assembly 60 shares the lateral friction between the vane 50 and the side wall of the sliding groove 14, avoiding the phenomenon that the vane 50 separates from the roller 30 due to excessive friction. Thus, the vane 50 can maintain reliable contact with the roller 30 in a low-friction state, ensuring air tightness while reducing the heating effect of the rotary compressor.

[0039] In addition, the rolling assembly 60 helps to reduce the load of the elastic member 40, making the motion of the vane 50 more stable and efficient. Overall, through the cooperation of the rolling assembly 60 and the side wall of the sliding groove 14, the reciprocating motion of the vane 50 is completed with lower energy loss, thereby improving the stability and efficiency of the compression process. This design is particularly suitable for rotary compressors 100 in low-frequency working mode, effectively solving the problem of excessive sliding friction resistance between the vane 50 and the cylinder 10, while improving the air-tight contact performance between the vane 50 and the roller 30.

[0040] In some embodiments, as Figure 3As shown, along the thickness direction of the sliding vane 50, the rolling assembly 60 is arranged on opposite sides of the sliding vane 50, and the rolling assembly 60 is rotationally connected with the sliding vane 50.

[0041] The rolling assembly 60 is arranged on opposite sides of the sliding vane 50, so that the sliding vane 50 keeps parallel movement in the sliding groove 14, thereby reducing local friction and wear, and further reducing the adverse effects of friction resistance. Moreover, the rolling assembly 60 arranged on opposite sides enables the sliding vane 50 to keep a stable state in reciprocating movement, avoiding tilting phenomenon caused by uneven force, and significantly improving the operating performance of the compressor.

[0042] In addition, by arranging the rolling assembly 60 in rotational connection with the sliding vane 50, the sliding vane 50 and the rolling assembly 60 can be assembled and connected as a whole, and then the whole component is installed in the sliding groove 14, so as to simplify the assembly and installation process.

[0043] The thickness direction of the sliding vane 50, the length direction of the sliding vane 50 and the axial direction of the rotor 20 have an included angle therebetween, which can be any value between 0-90°, and is not limited thereto. For example, referring to Figure 2 , the length direction of the sliding vane 50 can be the up-down direction, the thickness direction of the sliding vane 50 can be the left-right direction, and the axial direction of the rotor 20 can be the extension direction of the axis of the rotor.

[0044] For example, the included angle between the thickness direction of the sliding vane 50, the length direction of the sliding vane 50 and the axial direction of the rotor 20 can be set to 85-95°. For example, the thickness direction of the sliding vane 50, the length direction of the sliding vane 50 and the axial direction of the rotor 20 are arranged perpendicular to each other.

[0045] In some embodiments, as shown in Figure 3 and Figure 7 , along the thickness direction of the sliding vane 50, the sliding groove 14 is provided with a rolling groove 15 towards opposite sides of the sliding vane 50, and the rolling assembly 60 is in rolling contact with the bottom wall of the rolling groove 15.

[0046] For example, taking the thickness direction of the sliding vane 50 as the left-right direction. On the left side of the sliding vane 50, the left side wall of the sliding groove 14 is provided with a rolling groove 15 towards the left, so that the rolling assembly 60 is in rolling contact with the left side wall (i.e. the bottom wall) of the rolling groove 15. Correspondingly, on the right side of the sliding vane 50, the right side wall of the sliding groove 14 is provided with a rolling groove 15 towards the right, so that the right side rolling assembly 60 is in rolling contact with the right side wall (i.e. the bottom wall) of the rolling groove 15.

[0047] Since the left and right sides of the sliding sheet 50 are connected with the rolling assembly 60, in order not to increase the gap between the sliding sheet 50 and the left and right side walls of the sliding groove 14, a groove structure can be arranged on the left and right sides of the sliding sheet 50 for accommodating the rolling assembly 60, but the thickness size of the sliding sheet 50 is reduced, thereby reducing the structural strength.

[0048] Based on this, the embodiment of the present application provides the rolling groove 15 on the left and right sides of the sliding groove 14 to provide the assembly space of the rolling assembly 60, avoids the case that the structural strength is reduced due to the reduction of the thickness of the sliding sheet 50, and is beneficial to improve the structural strength and stability of the sliding sheet 50 connected with the rolling structure.

[0049] In the plane perpendicular to the axis of the rotor 20, taking the cross-sectional shape of the sliding groove 14 as an example, the rolling groove 15 can be provided on the left and right sides of the sliding groove 14 for accommodating the contact rolling assembly 60. The rolling groove 15 can be regarded as a part of the sliding groove 14, that is, the upper and lower ends of the sliding groove 14 are rectangular cross sections with smaller width sizes. Between the two rectangular cross sections, there is a cross section with a larger width size including the two rolling grooves 15.

[0050] In some embodiments, as shown in Figure 3 , Figure 4 and Figure 5 , the rolling assembly 60 includes a plurality of rolling members 61 and a positioning groove 62. The sliding sheet 50 is provided with at least two rolling members 61 on the opposite sides in the thickness direction. The opposite sides of the sliding sheet 50 are provided with the positioning groove 62 in the thickness direction of the sliding sheet 50, and the rolling member 61 is partially located in the positioning groove 62.

[0051] The rolling member 61 refers to a component for achieving rolling contact between the sliding sheet 50 and the sliding groove 14 (or the rolling groove 15) to reduce the frictional resistance. For example, the rolling member 61 can be a plurality of rolling balls or a plurality of rolling columns. The rolling column has a larger contact area and can effectively disperse the pressure. The rolling ball can achieve flexible rolling through point contact. The positioning groove 62 is provided to provide the mounting and accommodating space of the rolling member 61, avoid forming a larger gap space between the sliding sheet 50 and the sliding groove 14, and facilitate the assembly and connection of the rolling member 61 and the sliding sheet 50.

[0052] For example, on the left side of the sliding sheet 50, the positioning groove 62 can be machined from left to right for the connection and installation of two or more rolling members 61. On the right side of the sliding sheet 50, the positioning groove 62 can be machined from right to left for the connection and installation of two or more rolling members 61.

[0053] For example, two, three or more rolling elements 61 are evenly distributed on both sides of the slide 50 to achieve balanced pressure distribution. In addition, the shape and depth of the positioning groove 62 are designed to match the geometric characteristics of the rolling elements 61, such as rectangular grooves for rollers and semispherical grooves for balls, to ensure that the rolling elements 61 can freely roll within a limited range without falling off.

[0054] In this way, by providing multiple rolling elements 61 on opposite sides of the slide 50 and combining the design of the positioning groove 62, reliable rolling contact between the slide 50 and the sliding groove 14 is achieved. Specifically, the introduction of multiple rolling elements 61 not only disperses the contact pressure during the movement of the slide 50, but also avoids local overheating and wear, thereby prolonging the service life of the rolling assembly 60. At the same time, the symmetrical arrangement of the slide 50 along the thickness direction makes the force on the slide 50 more uniform during reciprocating motion, preventing tilting or jamming due to uneven force, and ensuring smooth movement of the slide 50. The positioning groove 62 provides an accurate mounting position for the rolling elements 61, making their force points match the motion trajectory of the slide 50, thereby enhancing overall stability. During compressor operation, the rolling elements 61 are partially embedded in the positioning groove 62 but can still roll freely. This design effectively prevents displacement or falling of the rolling elements 61 in a vibrating environment, maintaining consistent rolling contact and reliably achieving reduced frictional resistance and guaranteed air tightness.

[0055] Based on this, the rolling assembly 60, together with the slide 50, the sliding groove 14 and the cylinder body 10, forms a complete rolling contact system. The slide 50 always maintains contact with the outer wall of the roller 30 under the action of the elastic element 40, while the rolling elements 61 form a stable rolling interface between the slide 50 and the sliding groove 14 through the constraint of the positioning groove 62. This structural design not only solves the instability problem of the rolling elements 61 during operation, but also significantly reduces the frictional resistance between the slide 50 and the sliding groove 14, improves the air tightness between the slide 50 and the roller 30, and thus improves the overall efficiency of the compressor.

[0056] It should be noted that if the sliding groove 14 is not provided with rolling grooves 15 on both sides. In a plane perpendicular to the axis of the rotor 20, the profile shape of the sliding groove 14 and the slide 50 are both rectangular structures.

[0057] Alternatively, as shown in Figure 3 , the sliding groove 14 is provided with rolling grooves 15 on both sides. Correspondingly, as shown in Figure 4 and Figure 5As shown, the left and right sides of the sliding sheet 50 are provided with protruding portions 51 to reduce the gap between the sliding sheet 50 and the rolling groove 15 in the left-right direction by the arrangement of the protruding portions 51. On this basis, the protruding portions 51 are provided with positioning grooves 62 in the left-right direction, such as the left protruding portion 51 which is provided with positioning grooves 62 from left to right for mounting two or more rolling members 61. The right protruding portion 51 is provided with positioning grooves 62 from right to left for mounting two or more rolling members 61.

[0058] In this way, through the matching arrangement of the protruding portions 51 and the positioning grooves 62, while reducing the gap between the rolling groove 15 and the sliding sheet 50 to improve the air tightness, the arrangement of the positioning grooves 62 does not additionally reduce the thickness dimension of the sliding sheet 50, but rather the thickness dimension of the sliding sheet 50 at the rolling member 61 can be increased by the arrangement of the protruding portions 51 to improve the structural strength of the sliding sheet 50.

[0059] It should be noted that the protruding portions 51 and the main body structure of the sliding sheet 50 can be a split structure. For example, the two can be detachably connected by bolts, facilitating the split production and assembly of the sliding sheet 50, the protruding portion 51 and the rolling assembly 60. Alternatively, the protruding portion 51 and the sliding sheet 50 can be integrally formed, having higher structural strength.

[0060] For example, Figure 4 As shown, the rolling member 61 is a roller, and in the positioning groove 62, at least two rollers are spaced apart along the length direction of the sliding sheet 50 and are partially arranged in the positioning groove 62, and the roller is rotationally connected to the side wall of the positioning groove 62 (such as the sliding sheet 50 or the protruding portion) in the axial direction (i.e. the axial direction of the rotor).

[0061] The roller refers to a rolling body with a cylindrical structure, which can be made of metal material or high polymer composite material to meet different strength and wear resistance requirements. The design purpose of the roller is to replace surface contact with line contact and replace sliding contact with rolling contact, which greatly reduces the friction force between the sliding sheet 50 and the sliding groove 14, and also helps to form a more uniform pressure distribution between the sliding sheet 50 and the sliding groove 14 (or the rolling groove 15), avoiding the aggravation of wear caused by local high pressure deviation. The positioning groove 62 can be a groove structure opened on the left and right sides of the sliding sheet 50, and its shape and size need to be matched with the roller to ensure effective constraint on the movement trajectory of the roller. The design of at least two rollers spaced apart along the length direction of the sliding sheet 50 aims to make the force of the sliding sheet 50 more balanced during reciprocating motion, preventing tilting or jamming caused by single-point support.

[0062] That is, by defining the rolling member 61 as a roller and optimizing its arrangement, the problem of insufficient stability of the rolling member 61 in the movement of the sliding vane 50 is effectively solved. The linear contact characteristics of the roller can provide a more stable rolling friction state between the sliding vane 50 and the sliding groove 14, and can significantly reduce the movement resistance between the sliding vane 50 and the cylinder body 10, especially when the rotor compressor is running at a low frequency, so that the sliding vane 50 can have a better contact sealing effect with the roller 30. The structure design of the roller part arranged in the positioning groove 62 makes the protruding part directly contact with the side wall of the sliding groove 14 to realize the rolling function, and the groove part provides stable support. This design ensures effective rolling contact while strengthening the structural reliability, which is beneficial to improve the stability and compression efficiency of the rotor compressor 100 in operation.

[0063] Alternatively, the rolling member 61 is a ball, and on one side of the sliding vane 50 in the thickness direction, the number of positioning grooves 62 is at least two and is a hemispherical hole, and one ball is located in one positioning groove 62 and is arranged to roll between the sliding vane 50 and the cylinder body 10.

[0064] The ball refers to a rolling body with spherical geometric characteristics, which can be made of metal or ceramic materials. The positioning groove 62 refers to a recess structure for accommodating and restraining the ball. By setting the positioning groove 62 as a hemispherical hole structure, the ball can be matched and used for positioning and installation, and the roller located in the spherical hole can be arranged to rotate compared to the sliding vane 50. By arranging two, three or more positioning grooves 62 and matching ball structures on the left or right side of the sliding vane 50, multi-point uniform support can be provided, thereby effectively dispersing dynamic load and preventing tilting or jamming caused by single-point stress concentration.

[0065] By setting the ball, the face contact sliding mode between the sliding vane 50 and the sliding groove 14 can be converted to a multi-point contact rolling mode, which can significantly reduce friction resistance and thus reduce energy loss and heating effect, thereby improving the operating efficiency and durability of the rotor compressor 100 under low-frequency operating conditions.

[0066] That is, by the overall structure of the middle sliding vane 50, the sliding groove 14 and the rolling assembly 60, the problem of axial movement and edge local wear of the rolling member 61 caused by lateral force during the reciprocating movement of the sliding vane 50 is effectively solved, and the friction control performance is optimized.

[0067] It should be noted that along the left-right direction, although the arrangement of the rolling assembly 60 increases the gap between the sliding sheet 50 and the cylinder body 10, through the matching arrangement of the protruding portion 51 and the rolling groove 15, the gap between the sliding sheet 50 and the cylinder body 10 is converted from a straight channel to a multi-bent channel between the upper and lower ends of the sliding sheet 50, and the larger gap is located in the inner U-shaped bent section, so as to improve the air-tightness effect between the sliding sheet 50 and the cylinder body 10 during the reciprocating movement of the sliding sheet 50 through the elongated and bent gap channel.

[0068] In some embodiments, as shown in Figs. 1 and 2, along the length direction of the sliding sheet 50 (e.g., the up-down direction), the cylinder body 10 is provided with a reset cavity 161 on the side (i.e., the upper side) of the sliding groove 14 away from the roller 30, the reset cavity 161 is in communication with the sliding groove and is spaced apart from the rolling groove 15, and the elastic member 40 is located in the reset cavity 161 and is in a compressed state. Based on this, the cylinder body 10 is provided with an oil guiding channel 162 which is in communication with the reset cavity 161 and the rolling groove 15. Figure 3 and Figure 6 As shown in Figs. 1 and 2, along the length direction of the sliding sheet 50 (e.g., the up-down direction), the cylinder body 10 is provided with a reset cavity 161 on the side (i.e., the upper side) of the sliding groove 14 away from the roller 30, the reset cavity 161 is in communication with the sliding groove and is spaced apart from the rolling groove 15, and the elastic member 40 is located in the reset cavity 161 and is in a compressed state. Based on this, the cylinder body 10 is provided with an oil guiding channel 162 which is in communication with the reset cavity 161 and the rolling groove 15.

[0069] The reset cavity 161 refers to a structure for providing a reset space for the sliding sheet 50 and serving as a lubricating oil collection area. By opening the reset cavity 161 for accommodating the elastic member 40 on the upper side of the sliding groove 14, the purpose is to stably store and distribute the lubricating oil. During the reciprocating movement of the sliding sheet 50, the lubricating oil will be brought into the reset cavity 161 at the upper end for accumulation. If there is too much lubricating oil accumulated in the reset cavity 161, it will hinder the movement of the sliding sheet 50 towards the reset cavity 161.

[0070] Based on this, by arranging the oil guiding channel 162 which is in communication with the reset cavity 161 and the rolling groove 15, when the sliding sheet 50 moves upwards towards the reset cavity 161, the lubricating oil accumulated in the reset cavity 161 will be compressed into the rolling groove 15 through the oil guiding channel 162. While lubricating the rolling assembly 60, the lubricating oil can also be brought into the gap between the sliding sheet 50 and the sliding groove 14 during the up-down reciprocating movement of the sliding sheet 50, so as to ensure that a continuous oil film is formed in the sliding contact area. The sliding contact area refers to the sliding contact area between the sliding groove 14 and the sliding sheet 50 between the reset cavity 161 and the rolling groove 15, and the sliding contact area between the sliding groove 14 and the sliding sheet between the rolling groove 15 and the compression groove 11.

[0071] By setting the reset cavity 161 at the end of the sliding groove 14 away from the roller 30, the necessary mounting space of the elastic member 40 for the sliding sheet 50 can be provided, and the reset cavity 161 can also serve as a storage area for lubricating oil. The oil guide channel 162 connecting the reset cavity 161 and the rolling groove 15 enables the lubricating oil to flow naturally between the rolling groove 15 and the reset cavity 161, thereby avoiding the accumulation of too much lubricating oil in a local area to increase the resistance during the reciprocating movement of the sliding sheet 50, and facilitating the improvement of the oil film lubrication effect in the sliding and rolling areas. This oil path design makes full use of the internal space of the cylinder body 10, forms a circulation path for the lubricating oil between the reset cavity 161 and the rolling groove 15, and significantly improves the lubrication conditions of the sliding contact surface.

[0072] That is, by setting the reset cavity 161 and the oil guide channel 162 to cooperate with the structure of the sliding sheet 50, the rolling groove 15 and the rolling assembly 60, the distribution path of the lubricating oil is optimized, the heat generation is reduced, and the air-tight contact between the sliding sheet 50 and the roller 30 is maintained, thereby further improving the overall operating efficiency and sealing performance of the rotary compressor 100.

[0073] In some embodiments, as shown in Figure 3 and Figure 7 , along the thickness direction of the sliding sheet 50, the two ends of the oil guide channel 162 are arranged at the side wall of the reset cavity 161 and the bottom wall of the rolling groove 15.

[0074] Since the reset cavity 161 and the rolling groove 15 have a large accommodation space in the left-right direction, by arranging the two ends of the oil guide channel 162 at the side wall of the reset cavity 161 and the bottom wall of the rolling groove 15, the lubricating oil sprayed by the oil guide channel 162 can flow fully in the reset cavity 161 and the rolling groove 15, which is conducive to improving the adhesion effect on the rolling assembly 60 and the sliding sheet 50, thereby improving the lubrication effect.

[0075] For example, the number of oil guide channels 162 is two. Between the left rolling groove 15 and the left side wall of the reset cavity 161, the oil guide channel 162 extends in a curved structure to enable the lubricating oil to flow smoothly between the reset cavity 161 and the left rolling groove 15. Between the right rolling groove 15 and the right side wall of the reset cavity 161, the oil guide channel 162 extends in a curved structure to enable the lubricating oil to flow smoothly between the reset cavity 161 and the right rolling groove 15.

[0076] Since the oil guide channel 162 has a large depth dimension in the axial direction of the rotor 20, the oil guide channel 162, the reset cavity 161, the rolling groove 15 and the sliding groove 14 have the same depth (or height) dimension. Based on this, as shown in Figure 6 , the cylinder body 10 further includes a plurality of support columns 163, which are spaced apart to support the opposite side walls of the oil guide channel 162.

[0077] That is, the support column 163 can be understood as a component for enhancing structural stability, which can be implemented by a cylindrical, square columnar or other geometric structure with high strength characteristics. The introduction of the support column 163 connects the opposite side walls of the oil guide channel 162 in a spaced distribution manner. A plurality of support columns 163 can be spaced and distributed along the depth direction and the extension direction of the oil guide channel 162 to form a stable support network, and do not affect the oil conduction effect of the oil guide channel 162. This structure not only can uniformly disperse the working pressure, but also can prevent the oil guide channel 162 from deforming or collapsing under high pressure, thereby maintaining the continuous smoothness of the oil circuit, which is conducive to improving the adaptability and structural stability of the rotary compressor 100 under complex working conditions.

[0078] In some embodiments, along the thickness direction of the sliding sheet 50, the ratio of the gap size between the sliding sheet 50 and the sliding groove 14 to the thickness size of the oil guide channel 162 is 1 / 5-1 / 3.

[0079] The gap size between the sliding sheet 50 and the sliding groove 14 refers to the interval distance between the sliding sheet 50 and the sliding groove 14 when the sliding sheet 50 moves in the sliding groove 14. The interval distance between the two is used for the smooth sliding of the sliding sheet 50, and at the same time, the interval distance can be filled with a lubricating oil film for reducing sliding friction resistance. Taking an example of the gap size between the sliding sheet 50 and the sliding groove 14 being a certain range value, if the above ratio is greater than 1 / 3, the thickness size of the oil guide channel 162 is smaller, thereby affecting the flow speed of the lubricating oil between the reset cavity 161 and the rolling groove 15, and at the same time, the sliding sheet 50 has a larger resistance when moving upward. If the above ratio is less than 1 / 5, more lubricating oil will accumulate in the rolling groove 15, which is also not conducive to the reciprocating movement of the sliding sheet 50 in the up-down direction. By limiting the ratio, the appropriate oil film thickness is maintained to buffer the motion impact, and abnormal fluctuation of oil flow is avoided.

[0080] Along the axial direction of the rotor 20, the height size of the oil guide channel 162 is the same as the height size of the sliding groove 14.

[0081] In some embodiments, as shown in FIGS. 1, 2 and 3, along the length direction of the sliding sheet 50, the length size of the rolling assembly 60 is greater than the length size of the rolling groove 15. Figure 2 and Figure 3 As shown in FIGS. 1, 2 and 3, along the length direction of the sliding sheet 50, the interval size of the opposite two ends of the rolling groove 15 is a first size d1, the length size of the rolling assembly 60 is a second size d2, and the maximum interval size between the sliding groove 14 and the roller 30 is a third size d3, and the difference between the first size d1 and the second size d2 is greater than or equal to the third size d3.

[0082] The first dimension d1 refers to the length of the rolling groove 15 in the vertical direction. The second dimension d2 refers to the structural dimension of the rolling assembly 60 in the vertical direction, which can also be regarded as the structural dimension of the protrusion 51 in the vertical direction. If the protrusion 51 is provided with structures other than the rolling assembly 60, the second dimension d2 can be regarded as the overall structural length of the protrusion 51, the rolling assembly 60, and other mounting components located in the rolling groove 15. Thus, the difference between the first dimension d1 and the second dimension d2, i.e., d1-d2, represents the maximum displacement of the slide 50 in the vertical direction through the adaptation of the rolling groove 15 and the protrusion 51 (or the rolling assembly 60).

[0083] In a cross-section perpendicular to the axial direction of the rotor 20, taking the cross-sectional shape of the compression groove 11 as circular and the cross-sectional shape of the roller 30 as an annular as an example, the third dimension d3 can also be regarded as the difference between the inner diameter of the compression groove 11 and the outer diameter of the roller 30. By setting the difference between the first dimension d1 and the second dimension d2 to be greater than or equal to the third dimension d3, when the vane 50 reciprocates in the up-down direction, the displacement margin of the rolling assembly 60 in the rolling groove 15 is sufficient to ensure the entire stroke range of the vane 50, so that the rotor compressor 100 can always maintain the contact and fit between the vane 50 and the outer wall of the roller 30 during operation, and avoid the setting of the rolling groove 15 affecting the sealing effect of the vane 50 and the roller 30.

[0084] In some embodiments, such as Figure 3 As shown, along the length of the slider 50, the distance between the rolling groove 15 and the reset cavity 161 is the fourth dimension d4, and the distance between the rolling groove 15 and the compression groove 11 is the fifth dimension d5. The ratio of the fourth dimension d4 to the first dimension d1 is 0.15-0.3. And / or, the ratio of the fifth dimension d5 to the first dimension d1 is 0.15-0.3.

[0085] In the vertical direction, the rolling groove 15 has partial sliding grooves 14 on both its upper and lower sides. Based on this, the fourth dimension d4 is the length of the upper sliding groove 14 of the rolling groove 15, and the fifth dimension d5 is the distance from the length of the lower sliding groove 14 of the rolling groove 15 to the compression groove 11. By setting the ratio of the length of the upper and lower sliding grooves 14 to the overall dimension of the upper and lower ends of the sliding groove 14 to 0.15-0.3, the airtightness of the sliding plate 50 is improved through a smaller gap between the sliding grooves 14 and the sliding plate 50.

[0086] If the above ratio is less than 0.15, the dynamic sealing effect between the sliding vane 50 and the cylinder body 10 is poor. If the above ratio is greater than 0.3, the friction pair of larger size will increase the sliding resistance of the sliding vane 50 reciprocating motion, and also compress the setting length of the rolling assembly 60. Therefore, the length ratio of the sliding groove 14 on the upper and lower sides of the rolling groove 15 is 0.15-0.3, which can maintain stable and sufficient oil film coverage under high pressure working condition, improve the sealing effect, reduce the overall sliding friction resistance, reduce the risk of heating and wear, and improve the overall operation reliability of the compressor. At the same time, the scheme cooperates with other structures of the above-mentioned rotor compressor 100, further optimizes the motion stability of the sliding vane 50 and the lubrication distribution effect.

[0087] Embodiment two When the rotor 20 drives the roller 30 to rotate along the side wall of the compression groove 11, the sliding vane 50 can reciprocate in the length direction of the sliding groove 14 through the force of the roller 30 outer wall on the sliding vane 50. The sliding vane 50 is arranged in the sliding groove 14, and according to the characteristics of the sliding vane 50 in the length direction, one end of the sliding vane 50 needs to always contact and fit the outer wall of the roller 30, which ensures that the sliding vane 50 can move in the length direction to maintain contact with the roller 30 during compression. However, in the actual structure, the sliding vane 50 is easy to separate from the roller 30 during low-frequency operation of the rotor compressor 100, which causes collision, noise and wear problems.

[0088] As shown in Figure 1 and Figure 2 The rotor compressor 100 further comprises a connecting assembly 70, one end of the connecting assembly 70 is connected with the sliding vane 50 along the length direction of the sliding vane 50, and the other end of the connecting assembly 70 is rotationally connected with the roller 30, so as to prevent the sliding vane 50 from moving away from the roller 30.

[0089] One end of the connecting assembly 70 is connected with the sliding vane 50 along the length direction of the sliding vane 50, and the other end of the connecting assembly 70 is rotationally connected with the roller 30, so as to prevent the sliding vane 50 from moving away from the roller 30.

[0090] Thus, by the joint action of the roller 30 and the sliding vane 50, the compression groove 11 is dynamically divided into the intake cavity 111 and the exhaust cavity 112, which are respectively communicated with the intake port 12 and the exhaust port 13, so as to realize the isolation of the gas flow path. On this basis, by the arrangement of the connecting assembly 70, the end of the sliding vane 50 is in stable contact with the outer side wall of the roller 30 to realize the effective isolation of the intake cavity 111 and the exhaust cavity 112. That is, by solving the problem of air-tight isolation at low frequency, the overall operation efficiency and effect of the rotary compressor 100 are improved. This design not only maintains the low power loss of the compressor under normal working conditions, but also improves the stability of the sliding vane 50 in the length direction thereof through the connecting assembly 70, so as to avoid the collision and noise problem caused by the separation of the sliding vane 50 from the roller 30 at low frequency. For example, the sliding vane 50 can be made of rigid material with a rectangular cross section, and one end thereof in the length direction is designed as an arc-shaped or planar structure to better fit the outer wall of the roller 30. The other end of the sliding vane 50 can be connected with the cylinder body 10 through the elastic member 40, which can be a spring or other elastic mechanical structure. The elastic member 40 provides a continuous pushing force to keep the sliding vane 50 in contact with the roller 30 at all times.

[0091] It should be noted that in the embodiment, the configuration of the connecting assembly 70 enables the sliding vane 50 to stably contact and fit the outer side wall of the roller 30. The elastic member 40 in a compressed state with the cylinder body 10 can be arranged at the other end of the sliding vane 50 to provide an elastic compression force, so as to further reduce the contact gap between the sliding vane 50 and the roller 30. Alternatively, the elastic member 40 can not be arranged, and in this case, the sliding vane 50 and the roller 30 also have good contact sealing effect, and the structure is simple.

[0092] Alternatively, other structures can be arranged between the cylinder body 10 and the sliding vane 50 to exert a force on the sliding vane 50 to continuously move it towards the roller 30, so as to further reduce the contact gap between the sliding vane 50 and the roller 30, which is not limited.

[0093] In some embodiments, as shown in Figs. 1 to 3, the connecting assembly 70 includes a positioning member 71 connected with the sliding vane 50 and a connecting member 72. Figure 8 and Figure 10 The one end of the connecting member 72 is rotatably connected with the roller 30 along the length direction of the sliding vane 50, and the other end of the connecting member 72 is inserted and fitted with the positioning member 71 to prevent the sliding vane 50 from moving away from the roller 30.

[0094] The positioning member 71 can be a groove structure, a protrusion structure or an insertion hole structure, as long as it can be inserted and fitted with the connecting member 72 for easy assembly of the two, so as to prevent the sliding vane 50 from moving away from the roller 30, which is not limited.

[0095] The positioning member 71 is arranged at the sliding sheet 50, and is used to provide an anchor point for fixing the connecting member 72, so as to prevent the sliding sheet 50 from being separated upward from the roller 30. The positioning member 71 and the sliding sheet 50 can be an integral structure, such as an integral component formed by cutting, casting or die casting, and has high structural strength. Alternatively, the positioning member 71 and the sliding sheet 50 can also be a split structure, and the two components can be connected by bolts, rivets or welding, so as to facilitate the machining and production of the parts.

[0096] The connecting member 72 is arranged between the roller 30 and the positioning member 71, and is used to limit the upward and downward movement of the roller 30 and the sliding sheet 50 in the axial direction of the rotor 20 (i.e. the length direction of the sliding sheet 50). For example, the connecting member 72 and the positioning member 71 can adopt a pin shaft structure, a ball hinge, an elastic connecting rod or a groove rod fitting structure, so as to facilitate the installation and fitting of the connecting assembly 70.

[0097] In the axial direction of the rotor 20, the connecting assembly 70 can be arranged at the side of the sliding sheet 50 away from the cylinder body 10, or at both sides of the sliding sheet 50 in the thickness direction thereof.

[0098] For example, as shown in Figure 8 and Figure 9 , in the axial direction of the rotor 20, the positioning member 71 is located at one side of the sliding sheet 50 (i.e. the side away from the cylinder body 10) and is provided with a plug-in groove 73, and the connecting member 72 is plugged and fitted with the plug-in groove 73. In combination with Figure 11 , the connecting assembly 70 comprises a first limiting portion 741 and a second limiting portion 742, the inner side of the plug-in groove 73 is provided with the first limiting portion 741, and the sliding sheet 50 is provided with the second limiting portion 742 corresponding to the first limiting portion 741. The first limiting portion 741 is one of a limiting groove and a positioning rib, and the second limiting portion 742 is the other one of the limiting groove and the positioning rib, and is used to limit the freedom degree of the connecting member 72 and the positioning member 71 in the length direction of the sliding sheet 50.

[0099] Since the opposite sides of the sliding sheet 50 in the thickness direction thereof need to be in contact with the side walls of the sliding groove 14, the positioning member 71 can be arranged at the side of the sliding sheet 50 away from the cylinder body 10 in the axial direction, and will not affect the reciprocating movement of the sliding sheet 50 in the sliding groove 14.

[0100] For example, the plug-in groove 73 can be formed on the positioning member 71 in the axial direction of the rotor 20, and the connecting member 72 can be plugged and fitted with the plug-in groove 73 in the axial direction. The positioning member 71 is provided with the first limiting portion 741 of the positioning rib structure on the inner wall of the plug-in groove 73, and the connecting member 72 is provided with a limiting groove corresponding to the positioning rib. The plug-in fitting of the positioning rib and the limiting groove is used to limit the freedom degree of the connecting member 72 and the positioning member 71 in the upward and downward direction, i.e. the connecting member 72 is fixedly arranged in the upward and downward direction compared with the sliding sheet 50, and the plug-in fitting can simplify the assembly process.

[0101] For example, the positioning member 71 is provided as a C or U-shaped structure with an opening facing the roller 30. Along the thickness direction of the sliding sheet 50, the positioning member 71 is provided with a limiting groove or positioning rib on the two opposite inner walls of the insertion groove 73, and the connecting member 72 is correspondingly provided with a positioning rib or limiting groove. After the upper end of the connecting member 72 is axially inserted into the insertion groove 73, the limiting groove and the positioning rib limit the movement of the connecting member 72 in the upward and downward directions relative to the positioning member 71, thereby limiting the freedom of the connecting member 72 in the upward and downward directions relative to the sliding sheet 50, and facilitating installation and disassembly.

[0102] In some embodiments, as shown in Figs. 7 and 8, the connecting assembly 70 includes a buffer pad 743. Along the length direction of the sliding sheet 50, the width dimension of the limiting groove is greater than that of the positioning rib. Figure 9 Figure 10 Based on this, the buffer pad 743 is arranged between the one end of the connecting member 72 located in the insertion groove 73 and the bottom wall of the insertion groove 73.

[0103] The buffer pad 743 is an elastic buffer medium, which can be made of rubber, silicone or spring, etc. to absorb and disperse the impact energy between the connecting member 72 and the positioning member 71, so as to avoid the rigid structure directly bearing the impact, thereby reducing the noise and wear caused by hard collision.

[0104] The design that the width dimension of the limiting groove is greater than that of the positioning rib is to form a reserved space in the length direction of the sliding sheet 50, so that the positioning rib can produce a slight displacement in the limiting groove, thereby providing necessary conditions for the compression deformation of the buffer pad 743.

[0105] It should be noted that under the oil sealing effect, the slight gap generated during the movement of the sliding sheet 50 and the roller 30 can be filled with lubricating oil, which will not affect the sealing isolation effect. However, the existence of the gap can cause rigid collision between the sliding sheet 50 and the roller 30 or the side wall of the cylinder body 10, thereby generating noise and causing structural damage.

[0106] However, through the above scheme, when the sliding sheet 50 and the roller 30 tend to separate, the positioning rib can produce a slight displacement in the limiting groove, which provides operation space for the elastic deformation of the buffer pad 743. At the same time, as a key elastic element, the buffer pad 743 can absorb and disperse energy when impacted, thereby significantly reducing the risk of hard collision between the connecting member 72 and the bottom wall of the insertion groove 73. In addition, due to the existence of the limiting groove and the positioning rib, the function of limiting the freedom of the connecting member 72 is maintained, and the durability and running silence of the overall structure are improved through the flexible buffer mechanism. This design not only solves the problem that the rigid limiting structure cannot absorb impact energy when the sliding sheet 50 and the roller 30 separate, but also optimizes the stability and reliability of the compressor under low-frequency working conditions.​

[0107] Due to the arrangement of the buffer pad 743, if the small gap between the upper end of the connector 72 and the bottom wall of the insertion slot 73 is difficult to insert the buffer pad 743 after the connector 72 is inserted and installed. If the buffer pad 743 is installed before the connector 72, because the contact area between the end face of the connector 72 and the buffer pad 743 becomes larger and larger during the insertion process, that is, the frictional resistance becomes larger and larger, so that the insertion resistance of the connector 72 continues to rise with the increase of the insertion depth.

[0108] Based on this, the area of the upper end face of the connector 72 can be reduced, such as setting the upper end of the connector 72 as a quadrangular pyramid structure, so as to reduce the frictional resistance in the insertion process by reducing the contact area.

[0109] Alternatively, as shown in Figure 10 and Figure 11 The connection assembly 70 includes at least two buffer members 744, the buffer member 744 is a ball or a ball, and the end face of the connector 72 towards the buffer pad 743 is provided with at least two grooves along the length direction of the sliding sheet 50, one buffer member 744 is partially arranged in one groove, and the buffer member 744 partially contacts the buffer pad 743.

[0110] Taking the buffer member 744 as an example, the buffer member 744 located in the groove is arranged between the connector 72 and the buffer pad 743 in a rolling manner, and the included angle between the rolling direction of the buffer member 744 and the axial direction of the rotor 20 is less than 40°.

[0111] Alternatively, the groove can also be provided in a hemispherical structure for accommodating a ball with a spherical structure, which can roll in any direction.

[0112] By arranging a plurality of grooves on the end face of the connector 72, the buffer member 744 is arranged in a position. Because the buffer member with a rolling ball structure can roll in the groove, even under the extrusion of the buffer pad 743, the buffer member 744 can still roll between the connector 72 and the buffer pad 743 during the insertion and installation of the connector 72. Because the rolling friction is much smaller than the sliding friction, the resistance of the connector 72 during the insertion and installation process is greatly reduced.

[0113] In addition, the contact area between the connecting member 72 and the buffer pad 743 is reduced due to the arrangement of the buffer member 744. However, as the buffer pad 743 is further pressed, the contact area between the buffer pad 743 and the cylindrical or spherical structure of the buffer pad 743 is continuously increased, thereby avoiding the phenomenon of single-point stress concentration. Moreover, the spherical or cylindrical structure of the buffer member 744 has no sharp contact surface, avoiding the collision contact noise caused by the excessive local pressure damaging the buffer pad 743. That is, through the above scheme, the separation phenomenon between the sliding vane 50 and the roller 30 can be effectively inhibited, thereby reducing the probability of abnormal noise and wear, and at the same time ensuring the stability of the rotor compressor 100 during low-frequency operation.

[0114] As shown in FIGS. 1, 2 and 3, the connecting member 72 is arranged on the lower end of the connecting assembly 70 and is connected to the connecting ring 32 of the roller 30. Figure 8 Figure 12 As shown in FIGS. 1, 2 and 3, the connecting member 72 is arranged on the lower end of the connecting assembly 70 and is connected to the connecting ring 32 of the roller 30. Figure 1 As shown in FIGS. 1, 2 and 3, the connecting member 72 is arranged on the lower end of the connecting assembly 70 and is connected to the connecting ring 32 of the roller 30.

[0115] The rolling body 31 refers to the core component directly involved in gas compression, and the rolling body 31 can be made of high-strength alloy material to have good wear resistance and pressure resistance, so as to ensure stable rotary motion under high-pressure environment. The connecting ring 32 can be understood as a structure for rotary connection of the connecting member 72, which can be fixedly connected with the rolling body 31 by welding, bolt connection or one-piece forming, so that the connecting member 72 is reliably anchored on the roller 30 through the connecting ring 32.

[0116] The connecting groove 321 refers to an annular groove structure outwardly formed along the circumference of the connecting ring 32, which can have different cross-sectional shapes such as rectangular groove, trapezoidal groove or polygonal groove. The opening of the connecting groove 321 in the radial direction has a small opening size, so that the lower end of the connecting member 72 can be limited in the radial direction by the opening side wall of the connecting groove 321 while rotating in the connecting groove 321 compared with the rolling body 31 and the connecting ring 32, thereby preventing the connecting assembly 70 and the sliding vane 50 from being separated upward or away from the outer side wall of the roller 30.

[0117] ​Therefore, the rotation of the rolling body 31 in the compression groove 11 maintains the continuity of the basic compression function of the compressor, ensuring that the gas compression process is not disturbed. The connecting ring 32 and the connecting assembly 70 are arranged on the same side of the rolling body 31, facilitating the adaptive installation of the two. The circumferential arrangement of the connecting groove 321 and the plug-in fitting mechanism enable the connecting piece 72 to resist the separation force and be rotationally connected with the roller 30 under dynamic working conditions, significantly improving the impact resistance and operation stability of the system.

[0118] In some embodiments, as shown in Figure 8 and Figure 11 , along the length direction of the sliding sheet 50, the connecting piece 72 is sequentially provided with a first connecting part 721 and a second connecting part 722 at one end of the roller 30. Along the axial direction of the rotor 20 (refer to Figure 1 ), the height dimension of the first connecting part 721 is smaller than that of the second connecting part 722, and the second connecting part 722 is located in the connecting groove 321 and is limited and fitted with the side wall at the opening of the connecting groove 321 to prevent the connecting piece 72 from being separated from the connecting ring 32. As shown in Figure 13 , the connecting ring 32 is provided with a plug-in notch 322 in the axial direction, which is in communication with the opening of the connecting groove 321 and the opening of the connecting groove 321, and is used for plug-in fitting of the first connecting part 721 and the second connecting part 722.

[0119] The first connecting part 721 refers to the groove structure at the lower end of the connecting piece 72, and the second connecting part refers to the lateral protruding structure below the groove structure of the connecting piece 72. The setting direction of the groove structure and the protruding structure is the axial direction of the rotor 20 (i.e. the height direction). In this way, the limiting structure formed by the first connecting part 721 and the second connecting part 722 is used to fit the connecting groove 321 on the connecting ring 32, so as to limit the second connecting part 722 in the connecting groove 321 through the side wall at the opening of the connecting groove 321, to prevent the connecting piece 72 from being separated from the connecting ring 32 along the radial direction.

[0120] The plug-in notch 322 refers to the opening structure designed on the connecting ring 32 for plug-in fitting, which can be used to communicate the connecting groove 321 and its opening by penetrating the side wall of the connecting groove 321 in the axial direction. The plug-in fitting channel is provided for the first connecting part 721 and the second connecting part 722, and the small notch structure does not affect the overall connection strength.

[0121] Thus, the lower end of the connecting piece 72 forms a I-shaped structure by cooperating with the main body structure through the first connecting part 721 and the second connecting part 722. By providing the insertion gap 322, the first connecting part 721 and the second connecting part 722 can be inserted into the connecting groove 321 along the axial direction through the insertion gap 322, so that the second connecting part 722 can rotate along the circumferential direction of the connecting ring 32 in the connecting groove 321, facilitating the insertion assembly of the connecting piece 72 and the roller 30.

[0122] As shown in Figure 8 and Figure 11 , along the length direction of the sliding sheet 50, the thickness dimension of the second connecting part 722 is the first connecting dimension L1. The connecting ring 32 is provided with a positioning part 323 at the insertion gap 322, which is located on the side of the insertion gap 322 away from the rolling main body 31 along the axial direction of the connecting ring 32. Along the radial direction of the connecting ring 32, the gap dimension between the positioning part 323 and the opening side wall of the connecting groove 321 is the second connecting dimension L2, and the first connecting dimension L1 is smaller than the second connecting dimension L2.

[0123] Along the length direction of the sliding sheet 50, the first connecting dimension L1 is the thickness dimension of the second connecting part 722, and the second connecting dimension L2 is the effective insertion width dimension along the radial direction (which can also be regarded as the length direction of the sliding sheet 50) at the insertion gap 322. By setting the second connecting dimension L2 to be greater than the first connecting dimension L1, the lower end of the connecting piece 72 can be smoothly inserted into the connecting groove 321 along the axial direction.

[0124] Among them, the positioning part 323 can reduce the opening width of the insertion gap 322 along the radial direction. Moreover, in the connecting groove 321, the second connecting part 722 is usually located on the inner side of the connecting groove 321 along the radial direction. Even if the second connecting part 722 moves to the insertion gap 322 compared with the connecting ring 32, the second connecting part 722 located in the connecting groove 321 can be prevented from escaping from the connecting groove 321 by the positioning part 323. Moreover, the positioning part 323 can also be used for the insertion positioning of the cover piece 33.

[0125] As shown in Figure 14 , the roller 30 further comprises a cover piece 33, which comprises a first cover plate 331, a second cover plate 332 and an insertion buckle 333. One end of the first cover plate 331 is connected perpendicularly to one end of the second cover plate 332. As shown in Figure 13 , along the circumferential direction of the connecting ring 32, the insertion buckle 333 is arranged on the opposite sides of the second cover plate 332. Along the axial direction of the connecting ring 32, the insertion gap 322 is provided with a buckle groove 324 on the two side walls of the opening, and the insertion buckle 333 is inserted and adapted with the buckle groove 324.

[0126] Thus, the first cover plate 331 can shield and block the axial side of the plug-in gap 322, and the second cover plate 332 can shield and block the radial side of the plug-in gap 322, by the plug-in fitting of the plug-in buckle 333 and the buckle groove 324, so as to further prevent the lower end of the connecting piece 72 from being disconnected from the connecting groove 321 at the plug-in gap 322. In addition, since the axial side of the plug-in gap 322 is provided with the positioning part 323, the plug-in positioning of the cover plate piece 33 is achieved by the contact fitting of the positioning part 323 and the first cover plate 331 to prevent the cover plate piece 33 from continuing to move downward.

[0127] At this time, the first cover plate 331 can be arranged flush with the end surface of the connecting ring 32 on the side away from the cylinder body 10 in the axial direction. Correspondingly, the second cover plate 332 is arranged flush with the outer side of the connecting ring 32 on the outer side in the radial direction and smoothly transitions.

[0128] Alternatively, the plug-in depth of the cover plate piece 33 can also be positioned by the plug-in fitting of the plug-in buckle 333 and the buckle groove 324 in the axial direction, which is not limited.

[0129] In some embodiments, as shown in Figure 10 and Figure 11 in the radial direction of the connecting ring 32, the depth size of the connecting groove 321 is a third connection size L3, and the thickness size of the side wall of the connecting groove 321 at the opening is a fourth connection size L4. In the length direction of the sliding sheet 50 (as shown in Figure 8 ), the thickness size of the first connecting part 721 is a fifth connection size L5, and the difference between the fifth connection size L5 and the fourth connection size L4 is greater than the difference between the third connection size L3 and the first connection size L1.

[0130] The third connection size L3 is the depth size of the connecting groove 321 in the radial direction, and the fourth connection size L4 is the thickness size of the side wall of the connecting groove 321 at the opening. In the length direction of the sliding sheet 50, the fifth connection size L5 is the thickness size of the first connecting part 721. Based on this, by setting L5-L4>L3-L1, the second connecting part 722 can be prevented from contacting and rubbing the bottom wall of the connecting groove 321 by the limiting cooperation of the first connecting part 721 and the opening side wall, thereby reducing the sliding contact area to reduce the friction resistance and noise.

[0131] It should be noted that in the embodiments of the present application, the rotor compressor 100 configured with the connecting assembly 70 can be flexibly fitted with the rolling assembly 60, the elastic piece 40, and the corresponding magnetic piece as needed, which is not limited.

[0132] In addition, the embodiment of the present application further provides an air conditioner comprising the above-mentioned rotor compressor 100. Since the air conditioner adopts the above-mentioned rotor compressor 100, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, which will not be repeated here.

[0133] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0134] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms when used herein do not imply a sequence or order unless specifically stated. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0135] The above description is merely that of the specific embodiments of the present application, and thus is not intended to limit the present application. Based on the above description, various modifications can be made by those skilled in the art. Accordingly, the present application will not be limited to the above-described embodiments but will be construed to include all modifications, equivalents and alternatives falling within the scope of the present application. The scope of the present application should be determined by the following claims.

Claims

1. A rotary compressor, characterized in that, include: A cylinder block, one end of which is provided with a compression groove and an air inlet, an air outlet and a sliding groove communicating with the compression groove; The rotor is disposed within the compression groove; Rollers are disposed within the compression groove and sleeved on the outside of the rotor, so that the eccentric rotor drives the rollers to rotate along the side wall of the compression groove. A sliding plate is disposed in the sliding groove; along the length direction of the sliding plate, one end of the sliding plate is used to contact the outer wall of the roller; the roller and the sliding plate divide the compression groove into an air inlet chamber and an air outlet chamber, the air inlet chamber is connected to the air inlet port, and the air outlet chamber is connected to the air outlet port; And a connecting component, one end of which is connected to the slide along the length of the slide, and the other end of which is rotatably connected to the roller to prevent the slide from moving away from the roller.

2. The rotary compressor according to claim 1, characterized in that, The connection component includes: A positioning element, which is connected to the sliding piece; And a connector, one end of which is rotatably connected to the roller along the length of the slide, and the other end of which is plugged into and adapted to the positioning member to prevent the slide from moving away from the roller.

3. The rotary compressor according to claim 2, characterized in that, Along the axial direction of the rotor, the positioning member is located on one side of the slide and is provided with a insertion groove, and the connecting member is inserted and adapted to the insertion groove; The connecting component includes a first limiting part and a second limiting part. The first limiting part is provided on the inner side of the insertion slot, and the second limiting part is provided on the slide corresponding to the first limiting part. The first limiting part is one of the limiting groove and the positioning rib, and the second limiting part is the other of the limiting groove and the positioning rib, which are used to limit the degree of freedom of the connecting member and the positioning member in the length direction of the slide.

4. The rotary compressor according to claim 3, characterized in that, The connecting component includes a buffer pad. Along the length direction of the slide, the width of the limiting groove is greater than the width of the positioning rib. The buffer pad is disposed between one end of the connector located in the insertion groove and the bottom wall of the insertion groove.

5. The rotary compressor according to claim 4, characterized in that, The connection component includes: At least two buffer components, wherein the buffer components are balls or rollers, and along the length direction of the slide, the end face of the connector facing the buffer pad is provided with at least two grooves, one of the buffer components is partially disposed in the groove, and the buffer component partially contacts the buffer pad.

6. The rotary compressor according to claim 5, characterized in that, The buffer element is rolled between the groove and the buffer pad, and the angle between the rolling direction of the buffer element and the axial direction of the rotor is less than 40°.

7. The rotary compressor according to any one of claims 2-6, characterized in that, The rollers include: A rolling body, which is disposed in the compression groove and rotates along the side wall of the compression groove; The connecting ring and the connecting assembly are located on the same side of the rolling body along the axial direction of the rotor, and the connecting ring is connected to the rolling body; along the radial direction of the connecting ring, the outer side of the connecting ring is provided with a connecting groove in the circumferential direction; the end of the connecting member facing the roller is inserted into and rotatably connected to the connecting groove to prevent the slide from moving away from the roller.

8. The rotary compressor according to claim 7, characterized in that, Along the length of the slide, the connector is provided with a first connecting part and a second connecting part at the end facing the roller. Along the axial direction of the rotor, the height dimension of the first connecting part is smaller than the height dimension of the second connecting part. The second connecting part is located in the connecting groove, and the second connecting part is matched with the side wall of the connecting groove at the opening to prevent the connecting part from detaching from the connecting ring. The connecting ring is provided with an insertion notch along the axial direction. The insertion notch is connected to the opening of the connecting groove and the opening of the connecting groove, and is used to insert and assemble the first connecting part and the second connecting part.

9. The rotary compressor according to claim 8, characterized in that, Along the length direction of the slider, the thickness of the second connecting portion is the same as the first connecting dimension; The connecting ring is provided with a positioning part at the insertion notch, and the positioning part is located on the side of the insertion notch away from the rolling body along the axial direction of the connecting ring; along the radial direction of the connecting ring, the gap size between the positioning part and the opening sidewall of the connecting groove is the second connection size, and the first connection size is smaller than the second connection size.

10. The rotary compressor according to claim 9, characterized in that, Along the radial direction of the connecting ring, the depth dimension of the connecting groove is the third connecting dimension, and the sidewall thickness dimension of the connecting groove at the opening is the fourth connecting dimension; Along the length direction of the slide, the thickness dimension of the first connecting part is the fifth connecting dimension, and the difference between the fifth connecting dimension and the fourth connecting dimension is greater than the difference between the third connecting dimension and the first connecting dimension.

11. The rotary compressor according to claim 8, characterized in that, The roller also includes a cover plate, the cover plate comprising: First cover plate; A second cover plate, wherein one end of the first cover plate is perpendicularly connected to one end of the second cover plate; And a plug-in buckle, along the circumference of the connecting ring, the plug-in buckle is disposed on opposite sides of the second cover plate; along the axial direction of the connecting ring, the plug-in notch is provided with a snap-fit ​​groove on the two side walls of the opening, and the plug-in buckle is plugged into and adapted to the snap-fit ​​groove.

12. An air conditioner, characterized in that, Including the rotary compressor as described in any one of claims 1-11.

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