Vanes, compressors and air conditioners

Abstract

The present application generally relates to the field of compressor technology, and specifically, to a vane, a compressor and an air conditioner, wherein the vane includes a main body, a first friction part and a second friction part, the first friction part and the second friction part are respectively movably mounted on the main body, a pressure transmission structure is arranged between the first friction part and the second friction part, the pressure transmission structure is used for the first friction part or the second friction part to slide back and forth when the first friction part or the second friction part is squeezed by the inclined roller, and the pressure transmission structure applies an extrusion force toward the front end of the vane to the first friction part and the second friction part respectively, so that the first friction part and the second friction part are in sealing contact with the circumferential side of the roller. In this scheme, the stability of the contact stress between the vane and the roller is guaranteed, and when the roller is tilted, the contact stress between the vane and the roller on one side of the axial direction of the roller is avoided to be too large, thereby reducing abnormal wear and uneven wear of the vane.

Description

Technical Field

[0001] The present application generally relates to the technical field of compressors, and in particular to a vane, a compressor, and an air conditioner. Background Art

[0002] The vane of the rotary compressor is one of the core components of the compressor pump body. During the operation of the compressor, the vane fits against the roller under the back gas pressure and spring force, and the two form a line contact dynamic seal, which makes the vane and the roller have a large Hertzian contact stress. The roller will tilt during the operation of the compressor, and the contact form between the roller and the vane will change from line contact to local point or small segment straight line contact. The contact stress between the roller and the vane increases exponentially. Under light working conditions, the sealing between the vane and the roller decreases. Under heavy working conditions, severe abnormal wear occurs on both sides of the axial direction of the front end surface of the vane. During the operation of the rotary compressor, the vane and the roller are separated, and a knocking sound is generated when the vane and the roller contact again. Summary of the Invention

[0003] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. This Summary of the Application is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] In order to solve at least one of the above technical problems, the main purpose of this application is to provide a sliding vane, a compressor and an air conditioner.

[0005] To achieve the above-mentioned invention objectives, this application adopts the following technical solutions:

[0006] A sliding plate comprises a main body, a first friction portion and a second friction portion, wherein the first friction portion and the second friction portion are movably mounted on the main body;

[0007] A pressure transmission structure is provided between the first friction part and the second friction part. The pressure transmission structure is used for the first friction part or the second friction part to slide in reverse when the first friction part or the second friction part is subjected to the inclined extrusion of the roller, and the pressure transmission structure applies an extrusion force toward the front end of the sliding plate to the first friction part and the second friction part respectively, so that the first friction part and the second friction part are in sealing contact with the circumferential side of the roller.

[0008] Furthermore, in some embodiments of the present application, the pressure transmission structure includes a first cavity and a second cavity for accommodating a pressure transmission medium;

[0009] The first cavity is disposed between the first friction portion and the main body, the second cavity is disposed between the second friction portion and the main body, and the first cavity is connected to the second cavity.

[0010] Furthermore, in some embodiments of the present application, the main body is provided with a flow hole for connecting the first cavity and the second cavity, and the wall thickness of the flow hole toward the front end of the main body is T1, 1.5mm≤T1≤3.5mm.

[0011] Furthermore, in some embodiments of the present application, input holes communicating with the first cavity and the second cavity are respectively provided at the ends of the main body.

[0012] Furthermore, in some embodiments of the present application, the pressure transmission structure further includes a first groove and a second groove for forming a cavity with the compressor housing;

[0013] The first groove is disposed between the end of the first friction portion and the main body, the second groove is disposed between the end of the second friction portion and the main body, the first cavity is connected to the first groove, and the second cavity is connected to the second groove.

[0014] Furthermore, in some embodiments of the present application, the first cavity and the first groove are respectively located on both sides of the sliding direction of the first friction part, and the second cavity and the second groove are respectively located on both sides of the sliding direction of the second friction part.

[0015] Furthermore, in some embodiments of the present application, first circulation channels are respectively provided on both sides of the sliding direction of the first friction portion, and the first circulation channels extend from the first cavity to the first groove.

[0016] Furthermore, in some embodiments of the present application, second circulation channels are respectively provided on both sides of the sliding direction of the second friction portion, and the second circulation channels extend from the second cavity to the second groove.

[0017] Furthermore, in some embodiments of the present application, the first friction portion and the second friction portion are respectively provided with sliding grooves, and sliding platforms for slidingly cooperating with the sliding grooves are respectively provided on opposite sides of the main body.

[0018] A compressor is provided with the above-mentioned sliding vane.

[0019] An air conditioner is equipped with the above compressor.

[0020] It can be seen from the above technical solutions that the advantages and positive effects of the vane, compressor and air conditioner of the present application are:

[0021] Ensure the stability of the contact stress between the vane and the roller. When the roller is tilted, avoid excessive contact stress between the vane and the roller on one side of the roller axial direction, reduce abnormal wear and uneven wear of the vane, reduce the operating noise of the compressor, and improve the reliability of the compressor operation.

[0022] The sliding plate includes a main body, a first friction part and a second friction part, the first friction part and the second friction part are respectively movably mounted on the main body. After the sliding plate is installed, the sliding plate is divided into three sections in the axial direction of the roller. A pressure transmission structure is provided between the first friction part and the second friction part. The pressure transmission structure is used for the first friction part or the second friction part to slide back when the first friction part or the second friction part is subjected to the inclined extrusion of the roller, and the pressure transmission structure applies an extrusion force toward the front end of the sliding plate to the first friction part and the second friction part respectively, so that the first friction part and the second friction part are in sealing contact with the circumference of the roller. When the roller is After the tilt occurs, one side of the roller in the axial direction tilts toward the sliding vane, and the other side of the roller in the axial direction tilts away from the sliding vane. The roller squeezes the first friction part or the second friction part, so that the front end surface of the sliding vane forms a step shape according to the tilt direction of the roller, thereby reducing the squeezing force of the roller on the sliding vane caused by the tilt of the roller. The first friction part and the second friction part are always in contact with the roller when the roller is tilted, ensuring the sealing between the roller and the sliding vane. When the sliding vane is separated from the roller and contacts again, the distance between the first friction part and the second friction part and the roller is small, and the roller moves toward the first friction part and the second friction part at a low speed, thereby reducing the impact sound when the sliding vane contacts the roller again. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 is a schematic diagram of an exploded structure of a sliding vane according to an exemplary embodiment.

[0026] Figure 2 FIG. 1 is a schematic cross-sectional structural diagram of a sliding vane according to an exemplary embodiment.

[0027] Figure 3 A sliding sheet according to an exemplary embodiment is shown Figure 2 AA cross-sectional diagram of .

[0028] Figure 4 A sliding sheet according to an exemplary embodiment is shown Figure 2 Schematic diagram of the BB cross-section structure.

[0029] Figure 5 1 is a schematic structural diagram of a main body of a sliding piece according to an exemplary embodiment.

[0030] Figure 6 FIG. 1 is a schematic structural diagram of a main body of a sliding sheet shown from another perspective according to an exemplary embodiment.

[0031] Figure 7 FIG1 is a schematic diagram showing a cross-sectional structure of a main body of a sliding piece according to an exemplary embodiment.

[0032] Figure 8 FIG. 1 is a schematic structural diagram of a first friction portion (second friction portion) of a sliding vane according to an exemplary embodiment.

[0033] Figure 9 FIG. 1 is a schematic cross-sectional structural diagram of a first friction portion (second friction portion) of a sliding vane according to an exemplary embodiment.

[0034] Figure 10 FIG1 is a schematic diagram showing a contact state between a roller of a compressor and a sliding vane when the roller is in an inclined state according to an exemplary embodiment.

[0035] The description of the accompanying drawings is as follows:

[0036] 100-slide; 200-roller; 300-upper flange; 400-lower flange;

[0037] 110 - main body; 120 - first friction part; 130 - second friction part; 140 - first cavity; 150 - second cavity; 160 - first groove; 170 - second groove, 180 - first circulation channel; 190 - second circulation channel;

[0038] 111 - first slide; 112 - second slide; 113 - first input hole; 114 - second input hole; 115 - circulation hole;

[0039] 121-first chute; 122-first circulation slot;

[0040] 131 - second chute; 132 - second circulation chute. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] This solution provides a sliding vane, a compressor, and an air conditioner. The sliding vane 100 includes a main body 110, a first friction portion 120, and a second friction portion 130. The first friction portion 120 and the second friction portion 130 are respectively slidably mounted on opposite sides of the main body 110. The first friction portion 120, the second friction portion 130, and the main body 110 each have an arc surface structure for frictionally contacting the roller 200. After the slide 100 is installed, the slide 100 is divided into three sections in the axial direction of the roller 200. A pressure transmission structure is provided between the first friction portion 120 and the second friction portion 130. The pressure transmission structure is used for the first friction portion 120 or the second friction portion 130 to slide back when the first friction portion 120 or the second friction portion 130 is tilted and squeezed by the roller 200, and the pressure transmission structure applies an extrusion force toward the front end of the slide 100 to the first friction portion 120 and the second friction portion 130 respectively. When the roller 200 tilts, one side of the roller 200 in the axial direction tilts toward the slide 100, and the other side of the roller 200 in the axial direction tilts away from the slide 100. The roller 200 squeezes the first friction portion 120 or the second friction portion 130, and the pressure transmission structure is used for the first friction portion 120 or the second friction portion 130 to slide back when the roller 200 tilts. In the transfer structure, the first friction portion 120 and the second friction portion 130 slide in opposite directions, and the front end surface of the slide 100 forms a stepped shape according to the inclination direction of the roller 200, thereby reducing the squeezing force of the roller 200 on the slide 100 when the roller 200 is tilted. The first friction portion 120 and the second friction portion 130 are always in contact with the roller 200 when the roller 200 is tilted, ensuring the sealing between the roller 200 and the slide 100. When the slide 100 is separated from the roller 200 and contacts again, the distance between the first friction portion 120 and the second friction portion 130 and the roller 200 is small, and the moving speed of the roller 200 toward the first friction portion 120 and the second friction portion 130 is low, thereby reducing the impact sound when the slide 100 contacts the roller 200 again.

[0043] In this solution, the pressure transmission structure controls the first friction part 120 and the second friction part 130 to slide in opposite directions according to the squeezing force of the first friction part 120 or the second friction part 130 by the roller 200, so that the sliding plate 100 forms a stepped friction surface to adapt to the inclined curved surface of the roller 200. At the same time, the pressure transmission structure applies a squeezing force toward the roller 200 to the first friction part 120 and the second friction part 130. When the sliding plate 100 and the roller 200 are assembled, when the roller 200 is operating normally, the pressure transmission structure ensures that the first friction part 120 and the second friction part 130 are in sealed contact with the roller 200 respectively. According to the understanding of those skilled in the art, the pressure transmission structure can adopt liquid, compressed gas or elastic parts. Combined with the compressor structure and operating state, this embodiment uses gas as the pressure transmission medium for the first friction part 120 and the second friction part 130.

[0044] In this solution, the side of the slide 100 in frictional contact with the roller 200 is defined as the front end side, the side of the slide 100 facing away from the roller 200 is defined as the end end side, the direction from the front end side of the slide 100 toward the end end side of the slide 100 is defined as the length direction of the slide 100, and according to the installation state of the slide 100, the axial direction of the roller 200 is defined as the height direction of the slide 100.

[0045] like Figure 1-9As shown, the sliding plate 100 includes a main body 110, a first friction portion 120, and a second friction portion 130. A pressure transmission structure is disposed between the first friction portion 120 and the second friction portion 130. The pressure transmission structure includes a first cavity 140, a second cavity 150, a circulation hole 115, a first input hole 113, a second input hole 114, a first groove 160, a second groove 170, a first circulation channel 180, and a second circulation channel 190. A first slide 111 and a second slide 112 are disposed on either side of the main body 110 in the longitudinal direction. The main body 110 defines a circulation hole 115, whose diameter is defined as D1. The circulation hole 115 is located near the front end of the main body 110. In this embodiment, the wall thickness of the circulation hole 115 facing the front end of the main body 110 is defined as T1, with a range of 1.5 mm ≤ T1 ≤ 3.5 mm, thereby ensuring the flexibility of the front end of the main body 110. A first input hole 113 and a second input hole 114 are provided on the end surface of the distal end of the main body 110. The first input hole 113 extends to the side of the first slide 111 facing the front end of the main body 110, and the second input hole 114 extends to the side of the second slide 112 facing the front end of the main body 110. The diameter of the first input hole 113 is defined as D2, and the diameter of the second input hole 114 is defined as D3. D2=D3≤0.8*D1 ensures pressure balance in the first cavity 140 and the second cavity 150. The first friction portion 120 is provided with a first sliding groove 121 for slidingly cooperating with the first slide 111, and the second friction portion 130 is provided with a second sliding groove 131 for slidingly cooperating with the second slide 112. In this embodiment, the first friction portion 120 and the second friction portion 130 have the same structure. The first sliding groove 121 extends from the end side of the first friction portion 120 toward the front end side of the first friction portion 120. The first sliding groove 121 does not penetrate the first friction portion 120, so as to cooperate with the main body 110 to form a first cavity 140.

[0046] like Figure 1 and Figure 8 As shown, the first friction portion 120 is respectively provided with a first circulation groove 122 on both sides of the length direction of the first slide groove 121, and the second friction portion 130 is respectively provided with a second circulation groove 132 on both sides of the length direction of the second slide groove 131. When the first friction portion 120 and the second friction portion 130 are respectively assembled on the main body 110, the first circulation groove 122 and the main body 110 are combined to form a first circulation channel 180, and the second circulation groove 132 and the main body 110 are combined to form a second circulation channel 190. In this embodiment, the cross-sections of the first circulation groove 122 and the second circulation groove 132 are both rectangular, and the cross-sectional sizes of the first circulation groove 122 and the second circulation groove 132 are the same, and the lengths of the two adjacent sides of the rectangle are defined as T2 and T3, respectively, T2≤1mm, T3≤1mm.

[0047] Combine Figure 2As shown, the first friction portion 120 and the second friction portion 130 are assembled on the main body 110. On both sides of the height direction of the slide 100, the main body 110 is flush with the contours of the first friction portion 120 and the second friction portion 130 respectively. When the front end side of the first friction portion 120 and the front end side of the second friction portion 130 are flush with the front end side of the main body 110 respectively, a first groove 160 is formed between the end side of the first friction portion 120 and the main body 110, and a second groove 170 is formed between the second friction portion 130 and the main body 110. The first groove 160 serves as a sliding allowance for the first friction portion 120 toward the end side of the main body 110, and the second groove 170 serves as a sliding allowance for the second friction portion 130 toward the end side of the main body 110. Figure 10 When the vane 100 is assembled in the vane slot of the compressor, the first friction portion 120 contacts the upper flange 300, and the second friction portion 130 contacts the lower flange 400. The inner walls on opposite sides of the vane slot and the upper flange 300 cover the three side openings of the first groove 160, and the inner walls on opposite sides of the vane slot and the lower flange 400 cover the three side openings of the second groove 170. The first groove 160 forms an air pressure cavity on the end side of the first friction portion 120, and the second groove 170 forms an air pressure cavity on the end side of the second friction portion 130.

[0048] Combine Figure 1 and Figure 2 The first slide 111 is located in the first slide groove 121, the first friction part 120 and the main body 110 are enclosed in the first slide groove 121 to form a first cavity 140, the second friction part 130 and the main body 110 are enclosed in the second slide groove 131 to form a second cavity 150, the first cavity 140 and the second cavity 150 are respectively arranged near the front end side of the slide 100, the first groove 160 and the first cavity 140 are respectively located on both sides of the sliding direction of the first friction part 120, the second groove 170 and the second cavity 150 are respectively located on both sides of the sliding direction of the second friction part 130, the first input hole 113 is connected to the first cavity 140, the second input hole 114 is connected to the second cavity 150, the first circulation channel 180 is connected to the first cavity 140, and the second circulation channel 190 is connected to the second cavity 150.

[0049] The main body 110 has a length of L1 and a height of H1. The first and second slides 111, 112 have the same length, defined as L2. The first and second slides 111, 112 are the same distance from the end of the main body 110, defined as L3. The height of the mounting area of ​​the main body 110 for mounting the first friction component 120 is H2, and the height of the mounting area of ​​the main body 110 for mounting the second friction component 130 is H3. The width of the main body 110 is defined as B1. The first and second slides 111, 112 have the same width, defined as B2. The first and second friction components 120, 130 have the same width, defined as B3. The first and second friction components 120, 130 have the same height, defined as H4. The first friction portion 120 and the second friction portion 130 have the same length, both defined as L4. In this embodiment, to ensure the strength of the sliding plate 100 itself and the stability of the sliding plate 100 under force, H2=H3=H4=1 / 3H1, B2≥1 / 3B1, B3=B1, L2≥1 / 2L1, L1-L3-L4≤1mm. In this solution, the first friction portion 120 and the second friction portion 130 are symmetrically arranged on opposite sides of the main body. As understood by those skilled in the art, the first friction portion 120 and the second friction portion 130 can also adopt an asymmetric structural design.

[0050] Combine Figure 10As shown, when the slide 100 is installed in the slide groove, the two sides of the slide 100 are in contact with the two opposite side walls of the slide groove respectively. The upper part of the first friction part 120 is covered with an upper flange 300, and the lower part of the second friction part 130 is provided with a lower flange 400. A spring is provided at the end of the main body 110 to apply an extrusion force toward the roller 200 to the main body 110, and constant pressure gas is provided to the first cavity 140 and the second cavity 150 through the first input hole 113 and the second input hole 114. When the roller 200 is in normal operation, the front end side of the first friction part 120, the front end side of the second friction part 130 and the front end side of the main body 110 are flush. When roller 200 compresses first friction portion 120, it slides toward the end of main body 110, creating a gap between second friction portion 130 and roller 200. First friction portion 120 compresses first cavity 140, increasing the gas volume within second cavity 150. Second friction portion 130 slides toward roller 200, while a portion of the gas flows through second flow channel 190 into the air pressure chamber formed by second groove 170, accelerating the sliding movement of second friction portion 130 toward roller 200. This ensures a seal between slider 100 and roller 200 when roller 200 is tilted, reducing compressor leakage and improving compressor performance. When second friction portion 130 contacts roller 200 again, its smaller mass reduces the impact velocity. The air pressure chamber formed by second groove 170 reduces the separation distance between second friction portion 130 and roller 200, significantly reducing impact noise and ensuring the compressor meets noise requirements.

[0051] This embodiment further provides a compressor, comprising the above-mentioned sliding vane 100 .

[0052] This embodiment also provides an air conditioner, comprising the above-mentioned compressor.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0054] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A sliding plate, characterized in that: It comprises a main body (110), a first friction part (120) and a second friction part (130), wherein the first friction part (120) and the second friction part (130) are respectively movably mounted on the main body (110); A pressure transmission structure is provided between the first friction part (120) and the second friction part (130), the pressure transmission structure comprising a first cavity (140) and a second cavity (150) for accommodating a pressure transmission medium and being interconnected; the first cavity (140) is provided between the first friction part (120) and the main body (110), and the second cavity (150) is provided between the second friction part (130) and the main body (110); the pressure transmission structure is used for the first friction part (120) or the second friction part When the part (130) is tilted and squeezed by the roller (200), it slides in the opposite direction, and the pressure transmission structure applies a squeezing force toward the front end of the sliding sheet (100) to the first friction part (120) and the second friction part (130) respectively, so that the first friction part (120) and the second friction part (130) are in sealing contact with the circumferential side of the roller (200); the first friction part (120) is provided with a first sliding groove (121), and the main body (110) is provided with a first sliding table (111) for slidingly cooperating with the first sliding groove (121).

2. The sliding vane according to claim 1, characterized in that: The main body (110) is provided with a flow hole (115) for communicating the first cavity (140) and the second cavity (150), and the wall thickness of the flow hole (115) on the side facing the front end of the main body (110) is T1, 1.5 mm≤T1≤3.5 mm.

3. The sliding plate according to claim 1, characterized in that Input holes communicating with the first cavity (140) and the second cavity (150) are respectively provided at the ends of the main body (110).

4. The sliding vane according to claim 1, characterized in that The pressure transmission structure further comprises a first groove (160) and a second groove (170) for forming a cavity with the compressor housing; The first groove (160) is arranged between the end of the first friction part (120) and the main body (110), the second groove (170) is arranged between the end of the second friction part (130) and the main body (110), and the first cavity (140) is connected to the first groove (160), and the second cavity (150) is connected to the second groove (170).

5. The sliding vane according to claim 4, characterized in that: The first cavity (140) and the first groove (160) are respectively located on both sides of the sliding direction of the first friction part (120), and the second cavity (150) and the second groove (170) are respectively located on both sides of the sliding direction of the second friction part (130).

6. The sliding vane according to claim 4, characterized in that First circulation channels (180) are respectively arranged on both sides of the first friction portion (120) in the sliding direction, and the first circulation channels (180) extend from the first cavity (140) to the first groove (160).

7. The sliding vane according to claim 4, characterized in that: Second circulation channels (190) are respectively arranged on both sides of the second friction portion (130) in the sliding direction, and the second circulation channels (190) extend from the second cavity (150) to the second groove (170).

8. The sliding plate according to claim 1, characterized in that The second friction portion (130) is provided with a second sliding groove (131), and the main body (110) is provided with a second sliding platform (112) for slidingly cooperating with the second sliding groove (131).

9. A compressor, characterized in that: A sliding sheet (100) as claimed in any one of claims 1 to 8 is installed.

10. An air conditioner, characterized in that: The compressor according to claim 9 is installed.

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