Rolling piston compressor and air conditioner

Abstract

The application provides a rolling rotor compressor and an air conditioner. The rolling rotor compressor comprises a rolling structure and two first fillers. First recesses are concavely arranged on two axial end faces of the rolling structure. The two first fillers are arranged in the two first recesses one by one. When the rolling structure rotates, i.e. during the operation of the compressor, the two first fillers generate heat by friction with flanges located at the two axial ends of the rolling structure, so that the first fillers expand. In the axial direction of the rolling structure, the expanded first fillers extend into the gaps between the axial end faces of the rolling structure and the flanges. The first fillers are arranged to reduce the leakage phenomenon.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a rolling rotor compressor and an air conditioner. Background Technology

[0002] Compressors are widely used in refrigeration systems such as air conditioners, heat pumps, and refrigeration systems. The performance level of the compressor is a key factor affecting the performance of related refrigeration products.

[0003] During compressor operation, there is a pressure difference between the two ends of the pump body leakage channel, which causes a pressure drop and temperature drop inside the lubricating oil in the leakage channel. The temperature drop reduces the solubility of refrigerant in the lubricating oil, causing the refrigerant to precipitate out of the lubricating oil and triggering a leak. Summary of the Invention

[0004] The main objective of this invention is to provide a rolling rotor compressor and an air conditioner to reduce refrigerant leakage in the rolling rotor compressor.

[0005] To achieve the above objectives, according to one aspect of the present invention, a rolling rotor compressor is provided, comprising: a roller structure, wherein a first recess is provided on both axial end faces of the roller structure; and two first fillers, which are disposed in the two first recesses in a one-to-one correspondence, such that when the roller structure rotates, the two first fillers respectively rub against flanges located at the two axial ends of the roller structure to generate heat, thereby causing the first fillers to expand, and the expanded first fillers extend into the gap between the axial end faces of the roller structure and the flanges.

[0006] Furthermore, the first recess is an annular groove, and the central axis of the annular groove is parallel to or coincides with the central axis of the roller structure; the first filler is an annular structure.

[0007] Furthermore, the two sidewalls of the annular groove are the outer sidewall and the inner sidewall, respectively; from the groove opening to the bottom wall of the annular groove, the outer sidewall of the annular groove gradually moves away from its inner sidewall, and / or, the inner sidewall of the annular groove gradually moves away from its outer sidewall.

[0008] Furthermore, the first filler has a first micro-structure on the flange-facing surface, the first micro-structure including a first groove; the first filler also has a first guide channel, the first end of the first guide channel communicating with the first groove; the roller structure has a first connecting channel, the second end of the first guide channel communicating with the first end of the first connecting channel, and the second end of the first connecting channel communicating with the gap between the roller structure and the crankshaft on which the roller structure is sleeved.

[0009] Furthermore, the first microstructure includes a plurality of first grooves, which are arranged sequentially along the radial direction of the first filler; the first filler is provided with a plurality of first guide channels, which are arranged one-to-one with the plurality of first grooves, and the first end of each first guide channel is connected to the corresponding first groove; the second end of each of the plurality of first guide channels is connected to the first end of the first connecting channel.

[0010] Furthermore, by eliminating the inner sidewall of the annular groove, the outer sidewall and bottom wall of the annular groove, as well as the inner wall of the roller structure, form a stepped structure.

[0011] Furthermore, the first filler has a first micro-structure on the flange-facing surface, the first micro-structure including a first groove; the first filler also has a first guide channel, the first end of the first guide channel communicating with the first groove; the second end of the first guide channel communicating with the gap between the roller structure and the crankshaft fitted by the roller structure.

[0012] Furthermore, the first microstructure includes a plurality of first grooves, which are arranged sequentially along the radial direction of the first filler; the first filler is provided with a plurality of first guide channels, which are arranged one-to-one with the plurality of first grooves, and the first end of each first guide channel is connected to the corresponding first groove; the second end of each of the plurality of first guide channels is connected to the gap between the roller structure and the crankshaft fitted by the roller structure.

[0013] Furthermore, from the central axis of the first filler to its edge, the groove depth of the plurality of first grooves gradually increases; and / or the first end of the first guide channel is located on the side of its second end away from the central axis of the first filler; and / or along the groove opening of the first groove to its groove bottom wall, the width of at least a portion of the groove segment of the first groove gradually decreases, and the width direction of the first groove is perpendicular to the axial direction of the first filler.

[0014] Furthermore, the first groove is an annular structure; or, the first groove includes a plurality of first groove portions arranged sequentially along the circumference of the roller structure.

[0015] Furthermore, the first recess includes a plurality of first recessed holes, and the first filler includes a plurality of first filling portions. The plurality of first filling portions of the first filler are provided in a one-to-one correspondence with the plurality of first recessed holes of the first recess; each first filling portion is disposed in a corresponding first recessed hole.

[0016] Furthermore, at least a portion of the first recessed holes in the first recessed portion are sequentially arranged along the circumference of the roller structure; and / or, a third micro-structure is provided on the flange-facing surface of the first filling portion, the third micro-structure including a third groove; a third guide channel is also provided on the first filling portion, the first end of the third guide channel communicating with the third groove; a third connecting channel is provided on the roller structure, the second end of the third guide channel communicating with the first end of the third connecting channel, and the second end of the third connecting channel communicating with the gap between the roller structure and the crankshaft fitted by the roller structure.

[0017] Furthermore, the rolling rotor compressor also includes: a cylinder, in which a roller structure is rotatably disposed about the central axis of the cylinder, the central axis of the roller structure being parallel to the central axis of the cylinder; a vane groove is provided on the inner wall of the cylinder cavity, and a second recess is provided on each of the two side walls of the vane groove; two second fillers are disposed in the two second recesses in a one-to-one correspondence, so that when the vane in the vane groove slides, both second fillers rub against the vane to generate heat, causing the second fillers to expand, and then the expanded second fillers extend into the gap between the side wall of the vane groove and the vane.

[0018] Furthermore, the second recess is a receiving groove; the surface of the second filler facing the slide is provided with a second micro-structure, the second micro-structure including a second groove; a second guide channel is provided on the slide, the second groove is connected to the second end of the second guide channel; the first end of the second guide channel extends in a direction away from the cylinder cavity and extends to the end face of the slide.

[0019] Furthermore, the second microstructure includes a plurality of second grooves arranged sequentially along the sliding direction of the slide; the plurality of second grooves on the second filler are all connected to the second end of the second guide channel.

[0020] Furthermore, along the sliding direction of the slide and along the direction close to the cylinder cavity, the groove depth of the plurality of second grooves gradually increases; and / or, along the direction from the groove opening of the second groove to its bottom wall, the width of at least a portion of the groove segment of the second groove gradually decreases, and the width direction of the second groove is parallel to the sliding direction of the slide; and / or, the second guide channel includes a main channel segment and two branch channel segments, the first end of the main channel segment being the first end of the second guide channel; the first ends of the two branch channel segments are connected to the second end of the main channel segment, the second ends of the two branch channel segments extend to the circumferential sidewall of the slide, and the second ends of the two branch channel segments are respectively disposed opposite to the second grooves on the two second fillers.

[0021] Furthermore, the second recess includes a plurality of second recessed holes, and the second filler includes a plurality of second filling portions, wherein the plurality of second filling portions of the second filler are provided in a one-to-one correspondence with the plurality of second recessed holes of the second recess; each second filling portion is disposed in a corresponding second recessed hole.

[0022] Furthermore, a fourth micro-structure is provided on the surface of the second filling part facing the slide, the fourth micro-structure including a fourth groove; a second guide channel is provided on the slide, the fourth groove communicating with the second end of the second guide channel; the first end of the second guide channel extends toward the cylinder cavity away from the cylinder and extends to the end face of the slide.

[0023] Furthermore, the first filler includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material; and / or, the second filler includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material.

[0024] According to another aspect of the present invention, an air conditioner is provided, including a compressor, which is the aforementioned rolling rotor compressor.

[0025] According to the technical solution of the present invention, the rolling rotor compressor includes a roller structure and two first fillers; a first recess is provided on both axial end faces of the roller structure; the two first fillers are disposed in the two first recesses in a one-to-one correspondence, so that when the roller structure rotates, that is, during the operation of the compressor, the two first fillers rub against the flanges located at the two axial ends of the roller structure to generate heat, so that the first fillers expand; along the axial direction of the roller structure, the expanded first fillers will extend into the gap between the axial end face of the roller structure and the flange.

[0026] This application provides a first filler so that the expanded first filler extends into the gap between the axial end face of the roller structure and the flange. The first filler extending into the gap between the axial end face of the roller structure and the flange can block the gaseous refrigerant from precipitating, thereby reducing the amount of gaseous refrigerant entering the cylinder cavity and thus reducing leakage. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 An exploded structural schematic diagram of a rolling rotor compressor according to the present invention is shown;

[0029] Figure 2A longitudinal sectional view of the roller structure of a rolling rotor compressor according to the present invention is shown; wherein the first recess is a first structural form;

[0030] Figure 3 A longitudinal sectional view of the roller structure and the first filler of the rolling rotor compressor according to the present invention is shown; wherein the first recess is a first structural form and the first filler is not provided with a first micro-structure;

[0031] Figure 4 A longitudinal sectional view of the roller structure of a rolling rotor compressor according to the present invention is shown; wherein the first recess is a second structural form;

[0032] Figure 5 A longitudinal sectional view of the roller structure and the first filler of the rolling rotor compressor according to the present invention is shown; wherein the first recess is a second structural form and the first filler is not provided with the first micro-structure;

[0033] Figure 6 It shows Figure 5 Enlarged view of the roller structure and point A of the first filler in the rolling rotor compressor;

[0034] Figure 7 A longitudinal sectional view of the roller structure and the first filler of the rolling rotor compressor according to the present invention is shown; wherein the first recess is a second structural form and the first filler is provided with a first micro-structure;

[0035] Figure 8 It shows Figure 7 An enlarged view of the roller structure and the first filler at point B of the rolling rotor compressor; wherein the longitudinal section of the first groove of the first microstructure is triangular;

[0036] Figure 9 A schematic diagram of a structure showing that the longitudinal cross-section of the first groove of the first microstructure on the first filler of the rolling rotor compressor according to the present invention is approximately triangular;

[0037] Figure 10 A schematic diagram of a first groove of a first microstructure on a first filler of a rolling rotor compressor according to the present invention is shown, wherein the longitudinal section of the first groove of the first microstructure is a right-angled trapezoid.

[0038] Figure 11 A longitudinal sectional view of the roller structure and the first filler of the rolling rotor compressor according to the present invention is shown; wherein the first recess is a first structural form and the first filler is provided with a first micro-structure;

[0039] Figure 12 It shows Figure 11Enlarged view of the roller structure and point C of the first filler in the rolling rotor compressor;

[0040] Figure 13 A schematic diagram of the structure of a first groove of a first microstructure on a first filler of a rolling rotor compressor according to the present invention is shown, comprising a plurality of first groove portions.

[0041] Figure 14 A schematic diagram of the outer groove sidewall of the first recess of the rolling rotor compressor according to the present invention is shown, wherein the first recess is a second structural form;

[0042] Figure 15 A schematic diagram of the outer groove sidewall of the first recess of the rolling rotor compressor according to the present invention is shown, comprising a plurality of first wall segments and a plurality of second wall segments; wherein the first recess is a second structural form;

[0043] Figure 16 A schematic diagram of the cylinder structure of a rolling rotor compressor according to the present invention is shown; wherein, the cross section of the receiving groove on the cylinder perpendicular to the cylinder axis is T-shaped;

[0044] Figure 17 A schematic diagram of the cylinder structure of a rolling rotor compressor according to the present invention is shown; wherein, the cross section of the receiving groove on the cylinder perpendicular to the cylinder axis is trapezoidal;

[0045] Figure 18 A schematic diagram of the cylinder structure of a rolling rotor compressor according to the present invention is shown; wherein, the cross section of the receiving groove on the cylinder perpendicular to the cylinder axis is a portion of a circle;

[0046] Figure 19 A schematic diagram of the cylinder structure of a rolling rotor compressor according to the present invention is shown; wherein, the cross section of the receiving groove on the cylinder perpendicular to the cylinder axis is rectangular;

[0047] Figure 20 A schematic diagram of the structure of the vane and the second filler of the rolling rotor compressor according to the present invention is shown; wherein, the transverse cross section of the second groove of the second microstructure on the second filler is triangular;

[0048] Figure 21 A schematic diagram of the structure of the vane and the second filler of the rolling rotor compressor according to the present invention is shown; wherein, the transverse cross section of the second groove of the second microstructure on the second filler is approximately triangular;

[0049] Figure 22A schematic diagram of the structure of the vane and the second filler of the rolling rotor compressor according to the present invention is shown; wherein, the transverse cross section of the second groove of the second microstructure on the second filler is a right trapezoid.

[0050] The above figures include the following reference numerals:

[0051] 10. Roller structure; 101. First axial end face; 11. Annular groove; 111. Outer groove sidewall; 1111. First wall section; 1112. Second wall section; 1113. Third wall section; 112. Inner groove sidewall; 113. Stepped structure;

[0052] 12. First filler; 120. First microstructure; 121. First groove; 1211. First groove portion; 122. First guide channel; 13. First connecting channel; 14. Sleeve hole;

[0053] 20. Cylinder; 201. Cylinder cavity; 202. Second axial end face; 21. Sliding vane groove; 211. Groove sidewall; 22. Receiving groove;

[0054] 30. Sliding plate; 301. Second guide channel; 302. Main channel section; 303. Branch channel section;

[0055] 31. Second filler; 32. Second microstructure; 321. Second groove;

[0056] 40. Flange; 41. Upper flange; 42. Lower flange; 43. First bolt; 44. Second bolt;

[0057] 60. Crankshaft; 61. Main shaft; 62. Eccentric part. Detailed Implementation

[0058] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0059] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0060] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0061] This invention provides a rolling rotor compressor, please refer to... Figures 1 to 22 The rolling rotor compressor includes a roller structure 10 and two first fillers 12. A first recess is provided on each of the two axial end faces of the roller structure 10. The two first fillers 12 are correspondingly disposed within the two first recesses. When the roller structure 10 rotates, i.e. during compressor operation, the two first fillers 12 generate heat through friction with the flanges 40 located at the two axial ends of the roller structure 10, causing the first fillers 12 to expand. Along the axial direction of the roller structure 10, the expanded first fillers 12 extend into the gap between the axial end face of the roller structure 10 and the flange 40.

[0062] Specifically, the rolling rotor compressor also includes a cylinder 20 and two flanges 40; the roller structure 10 is rotatably disposed inside the cylinder 20 around the central axis of the cylinder 20, and the central axis of the roller structure 10 is parallel to the central axis of the cylinder 20; that is, the roller structure 10 is rotatably disposed inside the cylinder cavity 201 around the central axis of the cylinder cavity 201 of the cylinder 20, and the central axis of the roller structure 10 is parallel to the central axis of the cylinder cavity 201; the two flanges 40 are respectively disposed at the two axial ends of the roller structure 10, that is, the two flanges 40 are respectively in contact with the two axial end faces of the roller structure 10, and the roller structure 10 is rotatably disposed relative to the two flanges 40; the two flanges 40 are respectively disposed at the two axial ends of the cylinder 20, that is, the two flanges 40 are respectively in contact with the two axial end faces of the cylinder 20, and both flanges 40 are fixedly connected to the cylinder 20.

[0063] Two first filler elements 12 and two flanges 40 are arranged in a one-to-one correspondence. Each first filler element 12 and the corresponding flange 40 are located at the same axial end of the roller structure 10. When the roller structure 10 rotates in the cylinder cavity 201, each first filler element 12 will generate heat through friction with the corresponding flange 40, and the first filler element 12 will expand due to the heat generated by friction. Since the axial end face of the roller structure 10 is in contact with the flange 40, and the roller structure 10 is rotatably arranged relative to the flange 40, there may be a gap between the axial end face of the roller structure 10 and the flange 40. The expanded first filler element 12 can extend into the gap between the axial end face of the roller structure 10 and the flange 40.

[0064] Specifically, the two flanges 40 are the upper flange 41 and the lower flange 42, respectively; the two first fillers 12 are the upper filler and the lower filler, respectively; the two axial end faces of the roller structure 10 are the upper axial end face and the lower axial end face, respectively; the upper flange 41 contacts the upper axial end face of the roller structure 10, and the lower flange 42 contacts the lower axial end face of the roller structure 10; the expanded upper filler can extend into the gap between the upper axial end face of the roller structure 10 and the upper flange 41, and the expanded lower filler can extend into the gap between the lower axial end face of the roller structure 10 and the lower flange 42.

[0065] Specifically, the rolling rotor compressor also includes a crankshaft 60 passing through the roller structure 10. The crankshaft 60 includes a main shaft 61, the central axis of which is parallel to the central axis of the roller structure 10. The crankshaft 60 drives the roller structure 10 to rotate around the central axis of the main shaft 61, causing the roller structure 10 to rotate eccentrically. The main shaft 61 has a central channel for the flow of lubricating oil. The lubricating oil flowing out of the central channel enters between the axial end face of the roller structure 10 and the flange 40. The lubricating oil entering between the axial end face of the roller structure 10 and the flange 40 provides lubrication between them. Therefore, the flow direction of the lubricating oil on the axial end face of the roller structure 10 is from the position where the main shaft 61 passes through the roller structure 10 towards the edge of the roller structure 10.

[0066] The lubricating oil contains refrigerant. When the lubricating oil flows from the position where the main shaft 61 passes through the axial end face of the roller structure 10 to the edge of the roller structure 10, the lubricating oil flows from the high-pressure side to the low-pressure side. With the pressure drop and temperature drop, the solubility of the gaseous refrigerant in the lubricating oil decreases, causing some of the refrigerant in the lubricating oil to precipitate out. If the first filler 12 is not provided, the gaseous refrigerant precipitated from the lubricating oil will flow into the cylinder cavity 201 of the cylinder 20 through the gap between the axial end face of the roller structure 10 and the flange 40, thus causing leakage. However, by providing the first filler 12, the expanded first filler 12 extends into the gap between the axial end face of the roller structure 10 and the flange 40. The first filler 12 extending into the gap between the axial end face of the roller structure 10 and the flange 40 can play a certain blocking effect on the precipitated gaseous refrigerant, thereby reducing the amount of precipitated gaseous refrigerant entering the cylinder cavity 201 of the cylinder 20, and thus reducing leakage. By reducing leakage, the volumetric efficiency of the compressor can be increased, thereby improving the compressor's energy efficiency.

[0067] Optionally, the lubricating oil on the high-pressure side is generally a saturated lubricating oil.

[0068] It should be noted that, relying on the compensating effect of the elastic deformation of the first filler 12, the gap distribution between the axial end face of the roller structure 10 and the flange 40 can be effectively adjusted, and the stress on the axial end face of the roller structure 10 can be changed to achieve a balanced state, thereby further reducing the leakage phenomenon of the axial end face of the roller structure 10 and reducing the friction and wear of the axial end face of the roller structure 10.

[0069] It should be noted that since the first filler 12 can generate heat through friction, it also helps to reduce the temperature drop of the lubricating oil.

[0070] It should be noted that the two axial end faces of the roller structure 10 refer to the two end faces of the roller structure 10 along its axial direction, and the two axial end faces of the cylinder 20 refer to the two end faces of the cylinder 20 along its axial direction; the axial direction of the cylinder 20 must be parallel to or the same as the axial direction of the roller structure 10.

[0071] Figure 2 The two first axial end faces 101 are the two axial end faces of the roller structure 10. Figure 1 The second axial end face 202 is one of the axial end faces of the cylinder 20.

[0072] Specifically, the crankshaft 60 also includes an eccentric portion 62, on which the main shaft 61 passes. The central axis of the eccentric portion 62 is parallel to the central axis of the main shaft 61. The roller structure 10 is fixedly sleeved on the outside of the eccentric portion 62 to achieve the connection and fixation between the roller structure 10 and the crankshaft 60. The central axis of the roller structure 10 coincides with the central axis of the eccentric portion 62.

[0073] Specifically, along the axial direction of the main shaft 61, the eccentric part 62 divides the main shaft 61 into two shaft segments located on both sides of the eccentric part 62. The axial length of one shaft segment is greater than the axial length of the other shaft segment. Therefore, the two shaft segments are the long shaft segment and the short shaft segment, respectively. The shaft segment of the long shaft segment located outside the cylinder 20 is used to connect with the motor so that the motor drives the main shaft 61 to rotate.

[0074] Specifically, the main shaft 61 is rotatably mounted on two flanges 40.

[0075] The cylinder 20 of the present invention has a vane groove 21 on the inner wall of the cylinder cavity 201, and the extending direction of the vane groove 21 is perpendicular to the axial direction of the cylinder 20. The rolling rotor compressor also includes a vane 30, which is slidably disposed in the vane groove 21 along the extending direction of the vane groove 21. Along the sliding direction of the vane 30, the vane 30 has a first end and a second end disposed opposite to each other. The first end of the vane 30 is connected to the groove wall of the vane groove 21 by an elastic member. The extension and contraction direction of the elastic member is parallel to or the same as the sliding direction of the vane 30. The elastic member has a first end and a second end disposed opposite to each other along its extension and contraction direction. The first end and the second end of the elastic member are respectively connected to the vane groove. The groove wall of 21 is connected to the first end of the slide 30; the second end of the slide 30 abuts against the outer peripheral wall of the roller structure 10, and under the elastic action of the elastic element, the second end of the slide 30 can maintain abutment against the outer peripheral wall of the roller structure 10, so that the second end of the slide 30 and the outer peripheral wall of the roller structure 10 are tightly fitted; since the roller structure 10 is tangentially arranged with the cylinder 20, that is, the outer peripheral wall of the roller structure 10 is tangential to and in contact with the inner wall of the cylinder cavity 201 of the cylinder 20, the cylinder cavity 201 is divided into an intake cavity and a compression cavity by the slide 30 and the roller structure 10, and the rotation of the roller structure 10 causes the intake cavity to draw in air, and the gas in the compression cavity is compressed.

[0076] Since the two flanges 40 are in contact with the two axial end faces of the cylinder 20 respectively, and both flanges 40 are fixedly connected to the cylinder 20, the cylinder cavity 201 forms a sealed chamber, thus ensuring the airtightness of the cylinder cavity 201.

[0077] In a direction perpendicular to the extending direction of the sliding groove 21, the sliding groove 21 has two oppositely arranged groove sidewalls; Figures 20 to 22 In each figure, the two groove sidewalls 211 are the two groove sidewalls of the vane groove 21 mentioned here; a second recess is provided on each of the two groove sidewalls of the vane groove 21; the rolling rotor compressor also includes two second fillers 31, which are arranged in the two second recesses in a one-to-one correspondence, so that when the vane 30 slides in the vane groove 21, the two second fillers 31 rub against the vane 30 to generate heat, and the heated second fillers 31 expand, and the expanded second fillers 31 can extend into the gap between the groove sidewall of the vane groove 21 and the vane 30.

[0078] The lubricating oil flows between the groove sidewall of the slide plate groove 21 and the slide plate 30 along the direction from the first end to the second end of the slide plate 30, thereby providing lubrication between the groove sidewall of the slide plate groove 21 and the slide plate 30. Along the extending direction of the slide plate groove 21, the slide plate groove 21 has a first end and a second end disposed opposite to each other; the direction from the first end to the second end of the slide plate 30 is the same as the direction from the first end to the second end of the slide plate groove 21; the first end of the slide plate groove 21 is used to communicate with a flow channel capable of providing lubricating oil, so that the lubricating oil can enter from between the first end of the slide plate 30 and the groove sidewall of the slide plate groove 21. Figures 20 to 22 The direction from top to bottom is the direction from the first end to the second end of the slider 30, and also the direction from the first end to the second end of the slider groove 21.

[0079] The lubricating oil contains refrigerant. When the lubricating oil flows from the first end to the second end of the vane 30 between the sidewall of the vane groove 21 and the vane 30, the lubricating oil flows from the high-pressure side to the low-pressure side. With the pressure drop and temperature drop, the solubility of gaseous refrigerant in the lubricating oil decreases, causing some of the refrigerant in the lubricating oil to precipitate out. If the second filler 31 is not provided, the gaseous refrigerant precipitated from the lubricating oil will flow through the gap between the sidewall of the vane groove 21 and the vane 30. The gaseous refrigerant enters the cylinder cavity 201 of the cylinder 20, causing leakage. However, this application provides a second filler 31 so that the expanded second filler 31 can extend into the gap between the groove side wall of the slide groove 21 and the slide 30. The second filler 31 extending into the gap between the groove side wall of the slide groove 21 and the slide 30 can play a certain role in blocking the gaseous refrigerant, thereby reducing the amount of gaseous refrigerant entering the cylinder cavity 201 of the cylinder 20 and thus reducing leakage.

[0080] Optionally, the lubricating oil on the high-pressure side is generally a saturated lubricating oil.

[0081] It should be noted that since the second filler 31 can generate heat through friction, it also helps to reduce the temperature drop of the lubricating oil.

[0082] In this application, the upper flange 41 is fixedly connected to the cylinder 20 by the first screw 43, and the lower flange 42 is fixedly connected to the cylinder 20 by the second screw 44.

[0083] In this application, the cylinder 20 is provided with an air intake hole that communicates with the air intake chamber, so that the refrigerant can enter the air intake chamber through the air intake hole.

[0084] Specifically, the refrigerant flows through the distributor before entering the suction chamber through the suction port; that is, the refrigerant flowing out of the distributor enters the suction chamber through the suction port.

[0085] In this application, the upper flange 41 is provided with an exhaust port that communicates with the compression chamber so that the gas in the compression chamber can be discharged through the exhaust port; an exhaust valve plate is provided at the exhaust port so as to open or close the exhaust port.

[0086] Specifically, the cylinder 20 is provided with a clearance hole for the exhaust valve plate.

[0087] In this application, the first filler 12 is a high-heat-generating material, and the second filler 31 is a high-heat-generating material.

[0088] Specifically, the first filler 12 includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material; the second filler 31 includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material.

[0089] Among them, carbon fiber material is a carbon fiber friction material, which has high modulus, high power absorption per unit area, and good thermal conductivity and heat resistance; ceramic graphite material has good thermal conductivity and high heat resistance.

[0090] In this application, the slide groove 21 has an installation hole on its groove wall, and the first end of the elastic element is fixedly connected in the installation hole.

[0091] Optionally, the elastic element is a spring.

[0092] Specifically, a rounded chamfer or a beveled chamfer is provided between the groove wall of the sliding plate groove 21 and the hole wall of the mounting hole.

[0093] Example 1

[0094] In this embodiment, as Figures 1 to 15 As shown, the first structural form of the first recess is: the first recess is an annular groove 11, the central axis of the annular groove 11 is parallel to or coincides with the central axis of the roller structure 10; the first filler 12 is an annular structure.

[0095] Specifically, annular grooves 11 are recessed on both axial end faces of the roller structure 10, and the central axis of the annular grooves 11 is parallel to or coincides with the central axis of the roller structure 10; both first fillers 12 are annular in shape. The two first fillers 12 are respectively arranged in a one-to-one correspondence with the two annular grooves 11, and each first filler 12 is disposed in the corresponding annular groove 11, with the central axis of each first filler 12 coinciding with the central axis of the corresponding annular groove 11; when the roller structure 10 rotates, the two first fillers 12 generate heat through friction with the flanges 40 located at the two axial ends of the roller structure 10, causing the first fillers 12 to expand; along the axial direction of the first filler 12, the expanded first filler 12 extends into the gap between the axial end face of the roller structure 10 and the flange 40.

[0096] The first filler 12 has an annular structure, so that the expanded first filler 12 extends into the gap between the axial end face of the roller structure 10 and the flange 40. The first filler 12 extending into the gap between the axial end face of the roller structure 10 and the flange 40 can effectively block the gaseous refrigerant, thereby reducing the amount of gaseous refrigerant entering the cylinder cavity 201 of the cylinder 20 and thus reducing leakage.

[0097] In this embodiment, for each annular groove 11 and the first filler 12 therein: the two groove sidewalls of the annular groove 11 are the outer groove sidewall and the inner groove sidewall, respectively. The outer groove sidewall of the annular groove 11 is located on the side of its inner groove sidewall away from the central axis of the roller structure 10. From the groove opening of the annular groove 11 to the groove bottom wall, the outer groove sidewall of the annular groove 11 gradually moves away from its inner groove sidewall, and / or, the inner groove sidewall of the annular groove 11 gradually moves away from its outer groove sidewall, so that at least one of the two groove sidewalls of the annular groove 11 is inclined. In this way, during the rotation of the roller structure 10, the expanded first filler 12 can be stably embedded in the annular groove 11 under the blocking effect of the inclined groove sidewall of the annular groove 11, so that the expanded first filler 12 is difficult to fall out of the annular groove 11.

[0098] Figure 2 The outer groove sidewall 111 and the inner groove sidewall 112 are the outer groove sidewall and the inner groove sidewall of the annular groove 11, respectively.

[0099] Figure 2 The outer groove sidewall 111 and the inner groove sidewall 112 of the annular groove 11 are both inclined.

[0100] Specifically, for the groove sidewall of the inclined annular groove 11: the included angle θ between the groove sidewall and its bottom wall is greater than or equal to 88 degrees and less than 90 degrees.

[0101] Specifically, for the groove sidewall of the inclined annular groove 11: the gap L between the bottom end of the groove sidewall of the annular groove 11 and the first filler 12 in the annular groove 11 is greater than 0 and less than 0.05 mm; wherein, the bottom end of the groove sidewall of the annular groove 11 refers to the intersection of the groove sidewall and its bottom wall.

[0102] Specifically, the groove depth H of the annular groove 11 is greater than 0 and less than 5 mm.

[0103] Specifically, the height of the first filler 12 is in the same direction as its axial direction, and the depth of the annular groove 11 is in the same direction as its axial direction. The height of the first filler 12 in the annular groove 11 is equal to the depth of the annular groove 11, or the height of the first filler 12 in the annular groove 11 is slightly greater than or slightly less than the depth of the annular groove 11. This ensures that the expanding first filler 12 extends into the gap between the axial end face of the roller structure 10 and the flange 40 to provide a blocking effect, while also ensuring that the expanding first filler 12 does not cause significant interference to the rotation of the roller structure 10. In addition, the height of the first filler 12 designed in this way will not change the size of the gap between the axial end face of the roller structure 10 and the flange 40 during normal operation of the compressor, thus not disrupting the dynamic pressure lubrication state between the axial end face of the roller structure 10 and the flange 40, nor increasing the frictional loss between the axial end face of the roller structure 10 and the flange 40.

[0104] Specifically, the first filler 12 contacts the bottom wall of the annular groove 11; that is, the first filler 12 is tightly fitted to the bottom wall of the annular groove 11.

[0105] Specifically, a gap can be reserved between the first filler 12 and the sidewall of the annular groove 11 to provide a certain space for the expanded first filler 12.

[0106] It should be noted that the expanded first filler 12 can make close contact with the groove wall of the annular groove 11, which makes it difficult for the first filler 12 to fall out of the annular groove 11.

[0107] In this embodiment, the outer groove sidewall of the annular groove 11 is a cylindrical surface. Alternatively, as... Figure 14 As shown, the outer sidewall of the annular groove 11 is wavy along its circumference. Or, as... Figure 15 As shown, the outer groove sidewall of the annular groove 11 includes a plurality of first wall segments 1111 and a plurality of second wall segments 1112 distributed along its circumference. The plurality of first wall segments 1111 and the plurality of second wall segments 1112 are arranged alternately along the circumference of the annular groove 11. The plurality of first wall segments 1111 are located in the same circle, and the plurality of second wall segments 1112 are located in the same circle. The circles in which the plurality of first wall segments 1111 and the plurality of second wall segments 1112 are located are concentric circles. Adjacent first wall segments 1111 and second wall segments 1112 are connected by a third wall segment 1113.

[0108] In this embodiment, the surface of the first filler 12 facing the flange 40 is the surface of the first filler 12 for contacting the flange 40; the surface of the first filler 12 facing the flange 40 is provided with a first microstructure 120, the first microstructure 120 including a first groove 121; the first filler 12 is also provided with a first guide channel 122, the first end of the first guide channel 122 is connected to the first groove 121; the roller structure 10 is provided with a first connecting channel 13, the two ends of the first connecting channel 13 are a first end and a second end, respectively; the second end of the first guide channel 122 is connected to the first end of the first connecting channel 13, and the second end of the first connecting channel 13 is connected to the gap between the roller structure 10 and the crankshaft 60 sleeved on the roller structure 10.

[0109] In the specific implementation process, when the lubricating oil flows on the axial end face of the roller structure 10, some of the lubricating oil will flow to the surface of the first filler 12 facing the flange 40. The lubricating oil flowing to the surface of the first filler 12 facing the flange 40 must flow from the position where the main shaft 61 of the roller structure 10 passes through towards the edge of the roller structure 10. When the lubricating oil passes through the first groove 121, the volume of the lubricating oil suddenly increases, causing a pressure drop in the lubricating oil, which in turn causes the gaseous refrigerant in the lubricating oil to precipitate, including bubbles. The precipitated gaseous refrigerant flows along the first guide channel 122 and the first connecting channel 13 into the gap between the roller structure 10 and the crankshaft 60. In this way, by guiding the precipitated gaseous refrigerant into the gap between the roller structure 10 and the crankshaft 60, the precipitated gaseous refrigerant is prevented from flowing into the cylinder cavity 201, thereby further reducing leakage.

[0110] In this embodiment, the first microstructure 120 includes a plurality of first grooves 121, all of which are annular structures and are arranged sequentially along the radial direction of the first filler 12; the first filler 12 is also provided with a plurality of first guide channels 122, which are arranged one-to-one with the plurality of first grooves 121; the two ends of each first guide channel 122 are a first end and a second end, respectively, and the first end of each first guide channel 122 is connected to the corresponding first groove 121; the second ends of the plurality of first guide channels 122 are connected to the first end of the first connecting channel 13.

[0111] For each first groove 121: when the lubricating oil passes through the first groove 121, the volume of the lubricating oil suddenly increases, causing a pressure drop in the lubricating oil, which in turn causes the gaseous refrigerant in the lubricating oil to precipitate, including air bubbles. The precipitated gaseous refrigerant flows along the first guide channel 122 and the first connecting channel 13 into the gap between the roller structure 10 and the crankshaft 60. In this way, by guiding the precipitated gaseous refrigerant into the gap between the roller structure 10 and the crankshaft 60, the flow of the precipitated gaseous refrigerant into the cylinder cavity 201 is further prevented, thereby further reducing leakage.

[0112] By configuring the first micro-structure 120, the gaseous refrigerant in the lubricating oil can be extracted as much as possible, and then the extracted gaseous refrigerant can be guided to the gap between the roller structure 10 and the crankshaft 60, thereby reducing the possibility of gaseous refrigerant flowing into the cylinder cavity 201 and thus reducing leakage. The configuration of the first micro-structure 120 can also reduce the amount of wear between the axial end face of the roller structure 10 and the flange 40.

[0113] From the central axis of the first filler 12 to its edge, when the lubricating oil passes through the first groove 121 among the multiple first grooves 121, a certain amount of gaseous refrigerant has already been released. Therefore, the lubricating oil after passing through the first groove 121 is in an unsaturated state. The amount of gaseous refrigerant that can be released from the unsaturated lubricating oil will inevitably be reduced, which will help reduce leakage.

[0114] When the lubricating oil passes through the multiple first grooves 121 on the first filler 12, the lubricating oil that finally reaches the edge (low-pressure side) of the axial end face of the roller structure 10 contains very little refrigerant. Therefore, the amount of gaseous refrigerant that can leak is very small, thereby reducing leakage.

[0115] In this embodiment, the second structural form of the first recess is as follows: by eliminating the inner groove sidewall of the annular groove 11, a stepped structure 113 is formed by the outer groove wall and bottom wall of the annular groove 11, as well as the inner sleeve wall of the roller structure 10. The roller structure 10 has a sleeve hole 14, through which the roller structure 10 is sleeved on the crankshaft 60. The inner sleeve wall of the roller structure 10 refers to the hole wall of the sleeve hole 14.

[0116] Specifically, for the stepped structure 113, since it only has the outer groove wall of the annular groove 11, from the groove opening of the annular groove 11 to the bottom wall of the groove, the outer groove sidewall of the annular groove 11 gradually moves away from the central axis of the roller structure 10, so that the outer groove sidewall of the annular groove 11 is inclined.

[0117] Specifically, for the stepped structure 113: it is not necessary to set the first connecting channel 13, that is, the setting of the first connecting channel 13 is cancelled, and the second end of each first guide channel 122 can be connected to the gap between the roller structure 10 and the crankshaft 60 fitted by the roller structure 10.

[0118] In this embodiment, for each first groove 121, the central axis of the first groove 121 coincides with the central axis of the first filler 12.

[0119] In this embodiment, for each first guide channel 122, the first end of the first guide channel 122 is located on the side away from the central axis of the first filler 12 at its second end, so that the first guide channel 122 is inclined relative to the central axis of the first filler 12. In this way, under the action of the centripetal force of rotation when the roller structure 10 rotates, it is beneficial to guide the gaseous refrigerant that has been released.

[0120] Specifically, for each first guide channel 122, the second end of the first guide channel 122 is located on the surface of the first filler 12 facing the bottom wall of the annular groove 11. For the stepped structure 113, the second end of the first guide channel 122 communicates with the gap between the roller structure 10 and the crankshaft 60 fitted by the roller structure 10 through the gap between the first filler 12 and the bottom wall of the annular groove 11.

[0121] Specifically, for each first guide channel 122, the first guide channel 122 is a ring structure, and the central axis of the first guide channel 122 coincides with or is parallel to the central axis of the first filler 12.

[0122] In this embodiment, the depth of the plurality of first grooves 121 gradually increases from the central axis of the first filler 12 to its edge; the greater the depth of the first groove 121, the larger the cavity volume of the first groove 121, and the greater the pressure drop that the lubricating oil flowing through it can form, thereby releasing more gaseous refrigerant.

[0123] In this embodiment, for each first groove 121, along the groove depth direction of the first groove 121 and along the direction from the groove opening of the first groove 121 to its bottom wall, the width of at least a portion of the groove segment of the first groove 121 gradually decreases. The width direction of the first groove 121 is perpendicular to the axial direction of the first filler 12, and the groove depth direction of the first groove 121 is parallel to the axial direction of the first filler 12.

[0124] In this embodiment, for each first groove 121, the first groove 121 has a longitudinal section parallel to its axial direction, and the longitudinal section of the first groove 121 is located in the same plane as its central axis.

[0125] like Figure 8As shown, the longitudinal cross-section of the first groove 121 is triangular in shape, with one side of the triangle on the groove opening surface of the first groove 121; for example, the longitudinal cross-section of the first groove 121 is a right triangle, with one right-angled side of the right triangle on the groove opening surface of the first groove 121, and the endpoint of the hypotenuse of the right triangle located at the groove opening of the first groove 121 is located on the side away from the central axis of the first filler 12 at the other endpoint of the hypotenuse.

[0126] like Figure 9 As shown, Figure 8 The hypotenuse of the right triangle in the image is replaced with an arc segment.

[0127] like Figure 10 As shown, the longitudinal cross-section of the first groove 121 is a right trapezoid, with the hypotenuse of the right trapezoid facing the right-angled side of the groove opening of the first groove 121. The two endpoints of the hypotenuse of the right trapezoid are the first endpoint and the second endpoint, respectively. In the groove depth direction of the first groove 121, the first endpoint of the hypotenuse of the right trapezoid is located on the side of its second endpoint closer to the groove opening of the first groove 121. In the radial direction of the first filler 12, the first endpoint of the hypotenuse of the right trapezoid is located on the side of its second endpoint away from the central axis of the first filler 12.

[0128] In this embodiment, the first groove 121, which has a ring-shaped structure, can also be replaced with the following structure: such as Figure 13 As shown, the first groove 121 includes a plurality of first groove portions 1211 arranged sequentially along the circumference of the first filler 12.

[0129] When the first groove 121 includes a plurality of first groove portions 1211, the corresponding first guide channel 122 includes a plurality of second channel portions. The plurality of first groove portions 1211 of the first groove 121 are provided in a one-to-one correspondence with the plurality of second channel portions of the corresponding first guide channel 122. Each first groove portion 1211 of the first groove 121 is connected to the first end of the corresponding second channel portion of the corresponding first guide channel 122, and the second ends of the plurality of second channel portions of the corresponding first guide channel 122 are all connected to the first connecting channel 13.

[0130] Specifically, the longitudinal section of the first groove portion 1211 is the longitudinal section of the first groove 121; when the longitudinal section of the first groove portion 1211 is Figure 9 When the shape is in the middle, the groove cavity of the first groove portion 1211 is teardrop-shaped.

[0131] In this embodiment, the first microstructure 120 may also directly include a plurality of first groove portions 1211, each first groove portion 1211 forming a first groove 121; the distribution of the plurality of first groove portions 1211 of the first microstructure 120 is not limited. Optionally, at least a portion of the plurality of first groove portions 1211 of the first microstructure 120 are distributed along the circumference of the first filler 12.

[0132] In this embodiment, the first connecting channel 13 can be a single integral channel, so that the second ends of the plurality of first guide channels 122 are all connected to the first end of the first connecting channel 13. Alternatively, the first connecting channel 13 can include a plurality of first channel portions, each of which is correspondingly arranged with the plurality of first guide channels 122; each first channel portion has a first end and a second end; the second end of each first guide channel 122 is connected to the first end of the corresponding first channel portion, and the second end of each first channel portion is connected to the gap between the roller structure 10 and the crankshaft 60 on which the roller structure 10 is fitted.

[0133] Example 2

[0134] In this embodiment, the third structural form of the first recess is as follows: the first recess includes a plurality of first recessed holes, and the first filler 12 includes a plurality of first filling portions. The plurality of first filling portions of the first filler 12 are correspondingly arranged with the plurality of first recessed holes of the first recess; each first filling portion is disposed in a corresponding first recessed hole. When the roller structure 10 rotates, the plurality of first filling portions of the first filler 12 generate heat through friction with the flange 40 located at the same axial end of the roller structure 10, causing the plurality of first filling portions of the first filler 12 to expand, thereby extending the expanded first filling portions into the gap between the axial end face of the roller structure 10 and the flange 40.

[0135] Optionally, at least a portion of the first recessed holes are sequentially arranged along the circumference of the roller structure 10.

[0136] In this embodiment, for each first filling part: a third micro-structure is provided on the surface of the first filling part facing the flange 40, the third micro-structure including a third groove; a third guide channel is also provided on the first filling part, the first end of the third guide channel communicating with the third groove; a third connecting channel is provided on the roller structure 10, the second end of the third guide channel communicating with the first end of the third connecting channel, and the second end of the third connecting channel communicating with the gap between the roller structure 10 and the crankshaft 60 sleeved on the roller structure 10.

[0137] The function of the third microstructure is the same as that of the first microstructure 120 in Embodiment 1, which is to guide the precipitated gaseous refrigerant into the gap between the roller structure 10 and the crankshaft 60, so as to prevent the precipitated gaseous refrigerant from flowing into the cylinder cavity 201, thereby reducing leakage.

[0138] Example 3

[0139] In this embodiment, as Figures 16 to 22 As shown, the second recess is a receiving groove 22.

[0140] Specifically, each of the two sidewalls of the slide groove 21 is provided with a receiving groove 22; two second fillers 31 are respectively arranged in the two receiving grooves 22, so that when the slide 30 slides in the slide groove 21, the two second fillers 31 rub against the slide 30 to generate heat, and the heated second fillers 31 expand, and the expanded second fillers 31 can extend into the gap between the sidewall of the slide groove 21 and the slide 30.

[0141] Specifically, such as Figures 16 to 19 As shown, the cross section of the receiving groove 22 perpendicular to the axial direction of the cylinder 20 is a polygon or a part of a circle; for example, when the cross section of the receiving groove 22 perpendicular to the axial direction of the cylinder 20 is a polygon, the cross section of the receiving groove 22 perpendicular to the axial direction of the cylinder 20 is T-shaped, or triangular, or rectangular, or trapezoidal.

[0142] Specifically, along the axial direction of the cylinder 20, the receiving groove 22 extends to both axial end faces of the cylinder 20.

[0143] Specifically, the height direction of the second filler 31 is parallel to or the same as the axial direction of the cylinder 20; the height of the second filler 31 is equal to the axial height of the cylinder 20, so that the gap between the axial end face of the cylinder 20 and the flange 40 will not be changed due to the setting of the second filler 31, and thus the fit between the cylinder 20 and the flange 40 will not be changed.

[0144] Specifically, the width direction of the second filler 31 is parallel or the same as the depth direction of the receiving groove 22. The depth of the receiving groove 22 is perpendicular to the axial direction of the cylinder 20 and perpendicular to the sliding direction of the vane 30. The width of the second filler 31 in the receiving groove 22 is equal to the depth of the receiving groove 22, or the width of the second filler 31 in the receiving groove 22 is slightly greater than or slightly less than the depth of the receiving groove 22. This ensures that the expanded second filler 31 extends into the gap between the sidewall of the vane groove 21 and the vane 30 to provide a blocking effect, while also ensuring that the expanded second filler 31 does not significantly interfere with the sliding of the vane 30. Furthermore, the width of the second filler 31 designed in this way will not change the size of the gap between the sidewall of the vane groove 21 and the vane 30 during normal compressor operation.

[0145] Optionally, the surface of the second filler 31 facing the slide 30 is flush with the groove surface of the receiving groove 22.

[0146] Specifically, the second filler 31 contacts the bottom wall of the receiving groove 22; that is, the second filler 31 is in close contact with the bottom wall of the receiving groove 22.

[0147] It should be noted that the expanded second filler 31 can make close contact with the groove wall of the receiving groove 22, which makes it difficult for the second filler 31 to fall out of the receiving groove 22.

[0148] In this embodiment, the surface of the second filler 31 facing the slide 30 is the surface of the second filler 31 for contacting the slide 30; the surface of the second filler 31 facing the slide 30 is provided with a second microstructure 32, the second microstructure 32 including a second groove 321; a second guide channel 301 is provided on the slide 30, the second groove 321 is connected to the second end of the second guide channel 301; the first end of the second guide channel 301 extends in a direction away from the cylinder cavity of the cylinder 20 and extends to the end face of the slide 30; that is, the first end of the second guide channel 301 extends to the first end face of the slide 30.

[0149] In the specific implementation process, when the lubricating oil flows between the side wall of the slide groove 21 and the slide 30, some of the lubricating oil will flow to the surface of the second filler 31 facing the slide 30. The lubricating oil flowing to the surface of the second filler 31 facing the slide 30 must flow in the direction from the first end to the second end of the slide 30. When the lubricating oil passes through the second groove 321, the volume of the lubricating oil suddenly increases, causing a pressure drop in the lubricating oil, which in turn causes the gaseous refrigerant in the lubricating oil to precipitate. Among them, bubbles will precipitate. The precipitated gaseous refrigerant can enter the second guide channel 301 from the second end of the second guide channel 301 and flow along the second guide channel 301 to the first end face of the slide 30. In this way, by guiding the precipitated gaseous refrigerant to the first end face of the slide 30, the precipitated gaseous refrigerant is prevented from flowing to the cylinder cavity 201, thereby reducing leakage.

[0150] In this embodiment, the second microstructure 32 includes a plurality of second grooves 321 arranged sequentially along the sliding direction of the slide plate 30; the plurality of second grooves 321 on the second filler 31 are all connected to the second end of the second guide channel 301.

[0151] By configuring the second microstructure 32, the gaseous refrigerant in the lubricating oil can be extracted as much as possible, and then the extracted gaseous refrigerant can be guided to the first end face of the vane 30, thereby reducing the possibility of gaseous refrigerant flowing into the cylinder cavity 201 and thus reducing leakage. The second microstructure 32 can also reduce the amount of wear between the sidewall of the vane groove 21 and the vane 30.

[0152] From the first end to the second end of the sliding plate 30, when the lubricating oil passes through the first second groove 321 among the multiple second grooves 321, a certain amount of gaseous refrigerant has already been released. Therefore, the lubricating oil after passing through the first second groove 321 is unsaturated lubricating oil. The amount of gaseous refrigerant that can be released from the unsaturated lubricating oil will inevitably be reduced, which will help reduce leakage.

[0153] When the lubricating oil passes through the multiple second grooves 321 on the second filler 31, very little refrigerant is dissolved in the lubricating oil that finally reaches the low-pressure side of the second end of the slide plate 30. Therefore, the amount of gaseous refrigerant that can be leaked is very small, thereby reducing the leakage phenomenon.

[0154] Specifically, along the sliding direction of the vane 30 and along the direction close to the cylinder cavity 201 of the cylinder 20, that is, along the direction from the first end to the second end of the vane 30, the groove depth of the multiple second grooves 321 gradually increases; the greater the groove depth of the second groove 321, the larger the groove cavity volume of the second groove 321, and the greater the pressure drop that the lubricating oil flowing through it can form, thereby releasing more gaseous refrigerant.

[0155] Specifically, for each second groove 321, along the groove depth direction of the second groove 321 and along the direction from the groove opening to the bottom wall of the groove, the width of at least a portion of the groove segment of the second groove 321 gradually decreases, and the width direction of the second groove 321 is parallel to the sliding direction of the slider 30. Figures 20 to 22 The horizontal direction in the middle is the groove depth direction of the second groove 321.

[0156] Specifically, for each second groove 321, the second groove 321 has a transverse cross section perpendicular to the axial direction of the cylinder 20.

[0157] like Figure 20 As shown, the shape of the transverse cross section of the second groove 321 is a triangle, and one side of the triangle is on the groove opening surface of the second groove 321; for example, the shape of the transverse cross section of the second groove 321 is a right triangle, and one right-angled side of the right triangle is on the groove opening surface of the second groove 321, and the endpoint of the hypotenuse of the right triangle located at the groove opening of the second groove 321 is located on the side of the other endpoint of the hypotenuse closer to the cylinder cavity 201.

[0158] like Figure 21 As shown, Figure 20 The hypotenuse of the right triangle in the image is replaced with an arc segment.

[0159] like Figure 22 As shown, the transverse cross-section of the second groove 321 is a right trapezoid, with the hypotenuse of the right trapezoid facing the right-angled side of the groove opening of the second groove 321. The two endpoints of the hypotenuse of the right trapezoid are the first endpoint and the second endpoint, respectively. In the groove depth direction of the second groove 321, the first endpoint of the hypotenuse of the right trapezoid is located on the side of its second endpoint closer to the groove opening of the second groove 321. In the sliding direction of the slide plate 30, the first endpoint of the hypotenuse of the right trapezoid is located on the side of its second endpoint closer to the cylinder cavity 201.

[0160] In this embodiment, the second guide channel 301 includes a main channel section 302 and two branch channel sections 303. The two ends of the main channel section 302 are a first end and a second end, respectively, and the two ends of the branch channel sections 303 are a first end and a second end, respectively. The first end of the main channel section 302 is the first end of the second guide channel 301. The first ends of the two branch channel sections 303 are connected and communicate with the second ends of the main channel section 302. The second ends of the two branch channel sections 303 extend to the circumferential sidewall of the slide plate 30. The second ends of the two branch channel sections 303 are respectively disposed opposite to the second grooves 321 on the two second fillers 31. That is, the two branch channel sections 303 are respectively arranged in a one-to-one correspondence with the two second fillers 31, so that the second groove 321 on each second filler 31 is arranged opposite to the second end of the corresponding branch channel section 303, thereby enabling all the second grooves 321 on each second filler 31 to communicate with the second end of the corresponding branch channel section 303 through the gap between the slide groove 21 and the slide 30, so that the gaseous refrigerant precipitated between each second filler 31 and the slide 30 can enter the main channel section 302 from the corresponding branch channel section 303 and flow along the main channel section 302 to the first end face side of the slide 30.

[0161] Specifically, the main passage section 302 is a strip-shaped passage, and the branch passage section 303 is a strip-shaped passage. Further, the main passage section 302 is a strip-shaped passage extending along a first straight line direction, and the branch passage section 303 is a strip-shaped passage extending along a second straight line direction.

[0162] Optionally, the direction of the first straight line is perpendicular to the direction of the second straight line.

[0163] As the slider 30 continues to slide, all the second grooves 321 on each second filler 31 can be connected to the second end of the corresponding branch channel segment 303 through the gap between the slider groove 21 and the slider 30.

[0164] Specifically, the extension direction of the main channel section 302 is parallel or the same as the extension direction of the sliding groove 21.

[0165] In this embodiment, the second groove 321 is a strip-shaped groove, and the extending direction of the second groove 321 is parallel to the axial direction of the cylinder 20. Alternatively, the second groove 321 includes a plurality of second groove portions arranged sequentially along the axial direction of the cylinder 20.

[0166] Specifically, the transverse cross-section of the second groove is the transverse cross-section of the second groove 321; when the transverse cross-section of the second groove is Figure 21 When the shape is in the middle, the groove cavity of the second groove is teardrop-shaped.

[0167] In this embodiment, the second microstructure 32 may also directly include a plurality of second groove portions, each second groove portion forming a second groove 321; the distribution of the plurality of second groove portions of the second microstructure 32 is not limited. Optionally, at least a portion of the plurality of second groove portions of the second microstructure 32 are distributed along the sliding direction of the slider 30.

[0168] Example 4

[0169] The difference between Example 4 and Example 3 is that the structure of the second recess is different.

[0170] In this embodiment, the second recess includes a plurality of second recessed holes, and the second filler 31 includes a plurality of second filling portions. The plurality of second filling portions of the second filler 31 are disposed in a one-to-one correspondence with the plurality of second recessed holes of the second recess; each second filling portion is disposed in a corresponding second recessed hole. When the slider 30 slides in the slider groove 21, the plurality of second filling portions of the second filler 31 generate heat through friction with the slider 30, causing the plurality of second filling portions of the second filler 31 to expand. The expanded second filling portions extend into the gap between the groove sidewall of the slider groove 21 and the slider 30.

[0171] In this embodiment, for each second filling part: a fourth micro-structure is provided on the surface of the second filling part facing the slide 30, the fourth micro-structure including a fourth groove; the fourth groove is connected to the second end of the second guide channel 301.

[0172] The function of the fourth microstructure is the same as that of the second microstructure 32 in Embodiment 3, which is to guide the gaseous refrigerant to the first end face of the vane 30 to prevent the gaseous refrigerant from flowing into the cylinder cavity 201, thereby reducing leakage.

[0173] Example 5

[0174] The present invention also provides an air conditioner including a compressor, which is the aforementioned rolling rotor compressor.

[0175] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0176] In the rolling rotor compressor provided by the present invention, it includes a roller structure 10 and two first fillers 12; a first recess is provided on both axial end faces of the roller structure 10; the two first fillers 12 are disposed in the two first recesses in a one-to-one correspondence, so that when the roller structure 10 rotates, that is, during the operation of the compressor, the two first fillers 12 rub against the flanges 40 located at the two axial ends of the roller structure 10 to generate heat, so that the first fillers 12 expand; along the axial direction of the roller structure 10, the expanded first fillers 12 will extend into the gap between the axial end face of the roller structure 10 and the flange 40.

[0177] This application incorporates a first filler 12, which, after expansion, extends into the gap between the axial end face of the roller structure 10 and the flange 40. This first filler 12, extending into the gap between the axial end face of the roller structure 10 and the flange 40, effectively blocks the release of gaseous refrigerant, thereby reducing the amount of gaseous refrigerant entering the cylinder cavity 201 of the cylinder 20 and thus reducing leakage. By reducing leakage, the rolling rotor compressor of this application is designed as a low-leakage rolling rotor compressor.

[0178] By providing the first filler 12, the contact area between the axial end face of the roller structure 10 and the flange 40 can be reduced, thereby reducing the wear between the axial end face of the roller structure 10 and the flange 40. By providing the second filler 31, the contact area between the groove sidewall of the slide groove 21 and the slide 30 can be reduced, thereby reducing the wear between the groove sidewall of the slide groove 21 and the slide 30.

[0179] The first filler 12 and the second filler 31 of this application are both detachable, which facilitates replacement and helps save costs.

[0180] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0181] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0182] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rolling rotor compressor, characterized in that, include: The roller structure (10) has a first recessed portion on both axial end faces; Two first filler elements (12) are disposed in the two first recesses in a one-to-one correspondence. When the roller structure (10) rotates, the two first filler elements (12) rub against the flanges (40) located at the two axial ends of the roller structure (10) to generate heat, so that the first filler elements (12) expand, and then the expanded first filler elements (12) extend into the gap between the axial end face of the roller structure (10) and the flange (40). The first recess is an annular groove (11), and the central axis of the annular groove (11) is parallel to or coincides with the central axis of the roller structure (10); the first filler (12) is an annular structure. The first filler (12) has a first microstructure (120) on its surface facing the flange (40), the first microstructure (120) including a first groove (121); the first filler (12) also has a first guide channel (122), the first end of the first guide channel (122) communicating with the first groove (121); the roller structure (10) has a first connecting channel (13), the second end of the first guide channel (122) communicating with the first end of the first connecting channel (13), the second end of the first connecting channel (13) communicating with the gap between the roller structure (10) and the crankshaft (60) sleeved on the roller structure (10).

2. The rolling rotor compressor according to claim 1, characterized in that, The two sidewalls of the annular groove (11) are the outer sidewall and the inner sidewall, respectively; from the groove opening to the bottom wall of the annular groove (11), the outer sidewall of the annular groove (11) gradually moves away from its inner sidewall, and / or, the inner sidewall of the annular groove (11) gradually moves away from its outer sidewall.

3. The rolling rotor compressor according to claim 1, characterized in that, The first microstructure (120) includes a plurality of first grooves (121), which are arranged sequentially along the radial direction of the first filler (12); The first filler (12) is provided with a plurality of first guide channels (122), and the plurality of first guide channels (122) are provided in a one-to-one correspondence with the plurality of first grooves (121). The first end of each first guide channel (122) is connected to the corresponding first groove (121); the second end of the plurality of first guide channels (122) is connected to the first end of the first connecting channel (13).

4. A rolling rotor compressor, characterized in that, include: The roller structure (10) has a first recessed portion on both axial end faces. The first recessed portion is an annular groove (11). By removing the inner groove sidewall of the annular groove (11), the outer groove wall and bottom wall of the annular groove (11) and the inner sleeve wall of the roller structure (10) form a stepped structure (113). Two first filler elements (12) are disposed in the two first recesses in a one-to-one correspondence. When the roller structure (10) rotates, the two first filler elements (12) rub against the flanges (40) located at the two axial ends of the roller structure (10) to generate heat, so that the first filler elements (12) expand, and then the expanded first filler elements (12) extend into the gap between the axial end face of the roller structure (10) and the flange (40). The first filler (12) has a first microstructure (120) on its surface facing the flange (40), the first microstructure (120) including a first groove (121); the first filler (12) also has a first guide channel (122), the first end of the first guide channel (122) is connected to the first groove (121); the second end of the first guide channel (122) is connected to the gap between the roller structure (10) and the crankshaft (60) sleeved on the roller structure (10).

5. The rolling rotor compressor according to claim 4, characterized in that, The first microstructure (120) includes a plurality of first grooves (121), which are arranged sequentially along the radial direction of the first filler (12); The first filler (12) is provided with a plurality of first guide channels (122), and the plurality of first guide channels (122) are provided in a one-to-one correspondence with the plurality of first grooves (121). The first end of each first guide channel (122) is connected to the corresponding first groove (121); the second end of the plurality of first guide channels (122) is connected to the gap between the roller structure (10) and the crankshaft (60) sleeved on the roller structure (10).

6. The rolling rotor compressor according to claim 3 or 5, characterized in that, From the central axis of the first filler (12) to its edge, the groove depth of the plurality of first grooves (121) gradually increases; and / or The first end of the first guide channel (122) is located on the side of its second end away from the central axis of the first filler (12); and / or Along the direction from the opening of the first groove (121) to its bottom wall, the width of at least a portion of the first groove (121) gradually decreases, and the width direction of the first groove (121) is perpendicular to the axial direction of the first filler (12).

7. The rolling rotor compressor according to claim 3 or 5, characterized in that, The first groove (121) is an annular structure; or The first groove (121) includes a plurality of first groove portions (1211) arranged sequentially along the circumference of the roller structure (10).

8. A rolling rotor compressor, characterized in that, include: The roller structure (10) has a first recessed portion on both axial end faces, and the first recessed portion includes a plurality of first recessed holes. Two first filler elements (12) are disposed in the two first recesses in a one-to-one correspondence. Each first filler element (12) includes a plurality of first filling portions. The plurality of first filling portions of the first filler element (12) are disposed in a one-to-one correspondence with the plurality of first recess holes of the first recesses. Each first filling portion is disposed in the corresponding first recess hole. When the roller structure (10) rotates, the two first filler elements (12) rub against the flanges (40) located at the two axial ends of the roller structure (10) to generate heat, so that the first filler elements (12) expand, and the expanded first filler elements (12) extend into the gap between the axial end face of the roller structure (10) and the flange (40). The first filling part has a third micro-structure on the surface facing the flange (40), the third micro-structure including a third groove; the first filling part also has a third guide channel, the first end of the third guide channel communicating with the third groove; the roller structure (10) has a third connecting channel, the second end of the third guide channel communicating with the first end of the third connecting channel, the second end of the third connecting channel communicating with the gap between the roller structure (10) and the crankshaft (60) sleeved on the roller structure (10).

9. The rolling rotor compressor according to claim 8, characterized in that, At least a portion of the first recessed hole is arranged sequentially along the circumference of the roller structure (10).

10. The rolling rotor compressor according to claim 8, characterized in that, The rolling rotor compressor also includes: The cylinder (20) has a roller structure (10) rotatably disposed inside the cylinder (20) around the central axis of the cylinder (20), and the central axis of the roller structure (10) is parallel to the central axis of the cylinder (20); a sliding groove (21) is provided on the inner wall of the cylinder cavity of the cylinder (20), and a second recess is provided on each of the two side walls of the sliding groove (21); Two second fillers (31) are arranged in the two second recesses in a one-to-one correspondence, so that when the slide (30) in the slide groove (21) slides, the two second fillers (31) rub against the slide (30) to generate heat, so that the second fillers (31) expand, and then the expanded second fillers (31) extend into the gap between the groove sidewall of the slide groove (21) and the slide (30).

11. The rolling rotor compressor according to claim 10, characterized in that, The second recess is a receiving groove (22); the surface of the second filler (31) facing the slide (30) is provided with a second microstructure (32), the second microstructure (32) including a second groove (321). The slide (30) is provided with a second guide channel (301), and the second groove (321) is connected to the second end of the second guide channel (301); the first end of the second guide channel (301) extends toward the cylinder cavity away from the cylinder (20) and extends to the end face of the slide (30).

12. The rolling rotor compressor according to claim 11, characterized in that, The second microstructure (32) includes a plurality of second grooves (321) arranged sequentially along the sliding direction of the slide (30); the plurality of second grooves (321) on the second filler (31) are all connected to the second end of the second guide channel (301).

13. The rolling rotor compressor according to claim 12, characterized in that, Along the sliding direction of the slide plate (30) and along the direction close to the cylinder cavity of the cylinder (20), the groove depth of the plurality of second grooves (321) gradually increases; and / or Along the direction from the opening of the second groove (321) to its bottom wall, the width of at least a portion of the second groove (321) gradually decreases, and the width direction of the second groove (321) is parallel to the sliding direction of the slider (30); and / or The second guide channel (301) includes a main channel section (302) and two branch channel sections (303). The first end of the main channel section (302) is the first end of the second guide channel (301). The first ends of the two branch channel sections (303) are connected to the second end of the main channel section (302). The second ends of the two branch channel sections (303) extend to the circumferential sidewall of the slide (30). The second ends of the two branch channel sections (303) are respectively arranged opposite to the second grooves (321) on the two second fillers (31).

14. The rolling rotor compressor according to claim 10, characterized in that, The second recess includes a plurality of second recessed holes, and the second filler (31) includes a plurality of second filling portions. The plurality of second filling portions of the second filler (31) are provided in a one-to-one correspondence with the plurality of second recessed holes of the second recess; each second filling portion is disposed in the corresponding second recessed hole.

15. The rolling rotor compressor according to claim 14, characterized in that, The second filling part has a fourth micro-structure on the surface facing the slide (30), the fourth micro-structure including a fourth groove; the slide (30) has a second guide channel (301), the fourth groove is connected to the second end of the second guide channel (301); the first end of the second guide channel (301) extends toward the cylinder cavity away from the cylinder (20) and extends to the end face of the slide (30).

16. The rolling rotor compressor according to claim 10, characterized in that, The first filler (12) includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material; and / or The second filler (31) includes at least one of carbon fiber material, ceramic graphite material, and powder metallurgy metal material.

17. An air conditioner, comprising a compressor, characterized in that, The compressor is a rolling rotor compressor as described in any one of claims 1 to 16.

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