Compressors and refrigeration equipment

Abstract

This utility model provides a compressor and a refrigeration device. The compressor includes: a compression mechanism, which includes a moving plate and a stationary plate, the stationary plate and the moving plate forming a compression chamber, and a recess on the side of the stationary plate away from the moving plate; a float assembly, movably disposed in the recess and enclosing the inner wall of the recess to form a back pressure chamber, the back pressure chamber being able to communicate with the compression chamber; the float assembly includes a sealing element, the sealing element including: a body; a first sealing part and a second sealing part, which are located on both sides of the body along the radial direction of the stationary plate and are respectively connected to the body, the first sealing part and the second sealing part respectively abutting against the inner wall of the recess, that is, the sealing element is a single structural component. Therefore, compared with the float assembly with inner and outer cups in the related technology, it can reduce the gas leakage channels, significantly improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber in the related technology, and improve the energy efficiency and reliability of the compressor during operation.

Description

Technical Field

[0001] This utility model relates to the field of compressor equipment technology, and more specifically, to a compressor and refrigeration equipment. Background Technology

[0002] Scroll compressors have advantages such as simple structure, small size, light weight, low noise, high mechanical efficiency, and stable operation. Currently, scroll compressors with float assemblies in related technologies have inner and outer sealing cups in the float assembly. A gas leakage channel exists between the two cups, leading to reduced energy efficiency and poor reliability of the scroll compressor. Utility Model Content

[0003] The embodiments of this utility model are intended to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, a first aspect of the embodiments of this utility model provides a compressor.

[0005] A second aspect of the present invention provides a refrigeration device.

[0006] In view of the above, according to a first aspect of the present invention, a compressor is provided, the compressor comprising: a compression mechanism including a moving plate and a stationary plate, the stationary plate and the moving plate forming a compression chamber, the stationary plate having a recess on the side opposite to the moving plate; a float assembly movably disposed in the recess and forming a back pressure chamber with the inner wall of the recess, the back pressure chamber being able to communicate with the compression chamber, the float assembly including a sealing element, the sealing element including: a body; a first sealing part and a second sealing part, along the radial direction of the stationary plate, the first sealing part and the second sealing part being respectively located on both sides of the body and respectively connected to the body, the first sealing part and the second sealing part respectively abutting against the inner wall of the recess.

[0007] The compressor provided in this embodiment of the utility model includes a compression mechanism and a float assembly. Specifically, the compression mechanism includes a moving plate and a stationary plate, which together form a compression chamber.

[0008] The float assembly is movably disposed in the recess. Specifically, during the operation of the compressor, the moving plate rotates relative to the stationary plate, and the back pressure chamber is connected to the compression chamber, thereby introducing medium pressure into the back pressure chamber. Under the action of the medium pressure in the back pressure chamber, the float assembly moves away from the compression chamber until the float assembly abuts against the partition plate to form a seal, thereby realizing the establishment of the low pressure chamber, the high pressure chamber, and the medium pressure chamber (back pressure chamber).

[0009] It is understandable that when the compressor stops, the pressure in the compression chamber becomes low pressure because the moving plate stops moving. Since the compression chamber is connected to the back pressure chamber, the pressure in the back pressure chamber decreases. The float assembly moves to the side where the compression chamber is located, and the high pressure chamber is connected to the low pressure chamber, thereby achieving pressure balance in the low pressure chamber, medium pressure chamber and high pressure chamber.

[0010] The float assembly includes a seal, which comprises a body, a first sealing part, and a second sealing part. The first sealing part and the second sealing part are located on opposite sides of the body along the radial direction of the stationary disc. In other words, the first sealing part and the second sealing part are located on opposite sides of the body in the radial direction. Since the first sealing part and the second sealing part abut against the inner wall of the recess, a seal is achieved between the back pressure chamber and the high pressure chamber, as well as between the back pressure chamber and the low pressure chamber, to prevent gas leakage and thus ensure the efficiency and reliability of the compressor.

[0011] Since the first and second sealing parts are connected to the body respectively, that is, the sealing element is a structural component, compared with the float plate assembly with inner and outer cups in the related technology, it can effectively reduce the gas leakage channels, significantly improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber in the related technology, and improve the energy efficiency and reliability of the compressor during operation.

[0012] Moreover, since the gas leakage problem has been improved, the dimensional and positional tolerance requirements and riveting manufacturability requirements of the individual structures (first float, second float and seals) in the float assembly can be appropriately relaxed. This can reduce the manufacturing precision requirements of the individual structures in the float assembly, simplify the structure, and help reduce the production cost of the compressor.

[0013] In some technical solutions, the body, the first sealing part, and the second sealing part can optionally be an integral structure.

[0014] In this technical solution, since the main body, the first sealing part and the second sealing part are integrated into one structure, the gas leakage channels can be further reduced, the sealing effect between the low-pressure chamber, the medium-pressure chamber and the high-pressure chamber can be improved, thereby improving the energy efficiency and reliability of the compressor during operation.

[0015] In addition, the integrated structure facilitates the mass production of seals, thereby reducing the manufacturing difficulty of seals and thus reducing the production cost of compressors.

[0016] In some technical solutions, the float assembly may optionally include a first float and a second float, wherein the first float is provided with a limiting hole; the second float is arranged along the axial direction of the stationary plate with the first float, and the body is located between the first float and the second float. The first float is located on the side of the body away from the compression chamber and the body is provided with a clearance hole. The second float is provided with a limiting post on the side of the body away from the compression chamber. The limiting post passes through the clearance hole and is inserted into the limiting hole.

[0017] In this technical solution, the float assembly is further defined as including a first float and a second float. Specifically, the main body is disposed between the first float and the second float, and the first float is located above the main body.

[0018] The first float plate is provided with a limiting hole, the second float plate is provided with a limiting post, and the main body is provided with a clearance hole. The limiting post passes through the clearance hole and is inserted into the limiting hole. This achieves the radial sides of a sealing structure (sealant) abutting against the inner wall of the groove to reduce gas leakage channels and improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber. At the same time, it achieves the matching and limiting of the sealant, the first float plate and the second float plate.

[0019] In some technical solutions, the seal may optionally include a sealing edge, which is located on the side of the body away from the compression chamber and at the clearance hole, with at least a portion of the sealing edge located between the hole wall of the limiting hole and the outer wall of the limiting post.

[0020] In this technical solution, the sealing element is further defined as including a sealing edge. Specifically, the sealing edge is located on the side of the body away from the compression chamber, and the sealing edge is located at the clearance hole.

[0021] Since at least part of the sealing edge is located between the hole wall of the limiting hole and the outer wall of the limiting post, the position between the outer wall of the limiting post and the hole wall of the limiting hole is sealed, that is, the position where there may be a gas leakage channel in the float assembly is further sealed, which effectively improves the sealing effect between the back pressure chamber and the low pressure chamber and the high pressure chamber, and is conducive to further improving the working efficiency and reliability of the compressor.

[0022] Furthermore, since a sealing edge is provided on the side of the body away from compression, the situation of mistakenly installing multiple seals can be effectively prevented during the manufacturing process, thus improving manufacturability.

[0023] In some technical solutions, optionally, the side of the sealing edge facing the limiting post abuts against the limiting post; and / or the side of the sealing edge away from the limiting post abuts against the wall of the limiting hole.

[0024] In this technical solution, the side of the sealing edge facing the limiting post abuts against the limiting post, meaning the inner wall of the sealing edge abuts against the limiting post. And / or, the side of the sealing edge away from the limiting post abuts against the wall of the limiting hole, meaning the outer wall of the sealing edge abuts against the wall of the limiting hole. Optionally, during manufacturing, the float assembly employs a riveting process. After the limiting post passes through the clearance hole and is inserted into the limiting hole, it is riveted to increase its diameter, thereby expanding and compressing the sealing edge. This achieves a tight fit between the inner wall of the sealing edge and the limiting post, and between the outer wall of the sealing edge and the wall of the limiting hole, further improving the sealing effect of the float assembly, reducing gas leakage channels, and thus improving the energy efficiency and reliability of the compressor during operation.

[0025] In some technical solutions, the limiting post may optionally include a first limiting section and a second limiting section, wherein at least part of the sealing edge is located between the hole wall of the limiting hole and the outer wall of the first limiting section, and the second limiting section is located on the side of the first limiting section away from the compression chamber and is partially exposed to the first float plate.

[0026] In this technical solution, the limiting post is defined to include a first limiting segment and a second limiting segment. Specifically, the second limiting post is located on the side of the first limiting post away from the compression chamber, that is, the second limiting post is located at the top of the first limiting post.

[0027] At least a portion of the sealing edge is located between the wall of the limiting hole and the outer wall of the first limiting section, that is, the sealing edge is squeezed in the front half of the limiting column. This can further improve the sealing performance of the float assembly, improve the gas leakage problem between the low-pressure chamber, the medium-pressure chamber and the high-pressure chamber, facilitate the assembly of the float assembly, and help improve the assembly efficiency of the compressor.

[0028] Furthermore, since a portion of the second limiting section is exposed outside the first float plate, that is, the end of the second limiting section away from the first limiting section extends beyond the outer surface of the first float plate, it is convenient to rivet the limiting post, so that the limiting post can expand and squeeze the sealing edge, which improves the manufacturability of the float plate assembly and helps to further improve the sealing performance of the back pressure cavity.

[0029] In some technical solutions, the second limiting segment may optionally be interference-fitted with the limiting hole.

[0030] In this technical solution, since the second limiting section is interference-fitted with the limiting hole, that is, the sealing edge is squeezed in the front half of the limiting column and the hole wall of the limiting hole is squeezed in the rear half of the limiting column, the sealing effect of the float assembly can be further improved and the gas leakage problem can be improved. Therefore, the form and position tolerance requirements and riveting manufacturability requirements of the individual structures (first float, second float and seal) in the float assembly can be appropriately relaxed, that is, the manufacturing precision requirements of the individual structures in the float assembly can be reduced, and the structure can be simplified, which is conducive to reducing the production cost of the compressor.

[0031] In some technical solutions, the sealing edge is optionally provided around the clearance hole.

[0032] In this technical solution, since the sealing edge is arranged around the clearance hole, that is, the sealing edge is constructed as an annular sealing edge, the position between the limiting post and the hole wall of the limiting hole is sealed on the outer periphery of the limiting post, which further improves the sealing effect of the back pressure cavity and enhances the working efficiency and reliability of the compressor.

[0033] In some technical solutions, optionally, the second float plate is provided with a relief groove on the side away from the compression chamber, and the limiting post is provided in the relief groove. Along the radial direction of the stationary plate, there is a gap between the groove wall of the relief groove and the outer wall of the limiting post. Along the axial direction of the stationary plate, the sealing edge is arranged opposite to the gap.

[0034] In this technical solution, a clearance groove is provided on the side of the second float away from the compression chamber. Specifically, the limiting post is set in the clearance groove, and the groove wall of the clearance groove and the outer wall of the limiting post have a gap in the radial direction of the stationary plate, and the sealing edge and the gap are opposite to each other along the axial direction of the stationary plate.

[0035] Understandably, during the manufacturing process of the float assembly, the limiting post is first passed through the clearance hole and inserted into the limiting hole. Then, the limiting post is riveted, increasing its diameter. The expansion of the limiting post compresses the sealing edge, thus achieving a sealing effect. By maintaining a certain radial gap between the outer wall of the limiting post and the wall of the clearance groove, space is provided for the riveting deformation of the limiting post and the sealing edge. This improves the sealing performance of the back pressure cavity while ensuring the reliability of the float assembly riveting process.

[0036] In some technical solutions, optionally, at least one of the first float plate and the second float plate is provided with a rib, which abuts against the body.

[0037] In this technical solution, specifically, the first float plate is provided with protruding ribs, or the second float plate is provided with protruding ribs, or both the first and second float plates are provided with protruding ribs. The specific configuration can be determined according to actual needs.

[0038] Since the ribs abut against the body, the bonding force between the first float plate and the body, and / or between the second float plate and the body, can be increased. This helps to further reduce the gas leakage channels in the float plate assembly, significantly improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber in related technologies, and improve the energy efficiency and reliability of the compressor during operation.

[0039] In some technical solutions, the compressor may optionally include a housing and a partition plate, wherein the partition plate is disposed inside the housing and divides the housing into a first chamber and a second chamber, the compression mechanism is disposed in the first chamber, the stationary plate is provided with an exhaust port and a back pressure hole, the compression chamber is connected to the second chamber through the exhaust port, and the compression chamber is connected to the back pressure chamber through the back pressure hole; the first float plate is provided with a stop portion on the side away from the seal, and the stop portion is able to abut against the partition plate.

[0040] In this technical solution, the compressor is further defined as including a housing and a partition plate. Specifically, the partition plate is disposed inside the housing and divides the housing into a first chamber and a second chamber. Since the compression mechanism is disposed in the first chamber and the compression chamber is connected to the second chamber through the exhaust port, that is, the first chamber is a low-pressure chamber and the second chamber is a high-pressure chamber.

[0041] During compressor operation, the moving plate rotates relative to the stationary plate. The back pressure chamber is connected to the compression chamber through the back pressure hole, thereby introducing medium pressure into the back pressure chamber. Under the action of the medium pressure in the back pressure chamber, the float assembly moves away from the compression chamber until the stop part on the first float plate abuts against the partition plate, forming a seal, thereby realizing the establishment of the low pressure chamber (first chamber), the high pressure chamber (second chamber) and the medium pressure chamber (back pressure chamber).

[0042] It is understandable that when the compressor stops, the pressure in the compression chamber becomes low pressure because the moving plate stops moving. Since the compression chamber is connected to the back pressure chamber, the pressure in the back pressure chamber decreases. The float assembly moves to the side where the compression chamber is located, the stop part separates from the partition plate, and the high pressure chamber (second chamber) is connected to the low pressure chamber (first chamber), thereby achieving pressure balance in the low pressure chamber, medium pressure chamber and high pressure chamber.

[0043] In some technical solutions, optionally, the first sealing part is positioned closer to the central axis of the stationary disc than the second sealing part; one end of the first sealing part is connected to the body, and the other end extends obliquely away from the compression chamber; one end of the second sealing part is connected to the body, and the other end extends obliquely towards the compression chamber.

[0044] In this technical solution, the first sealing part is located close to the central axis of the stationary disc, meaning it is radially inner to the second sealing part. Specifically, the first sealing part is closer to the high-pressure chamber, and the second sealing part is closer to the low-pressure chamber.

[0045] Since the pressure in the back pressure chamber is less than the pressure in the high pressure chamber, and the end of the first sealing part away from the body extends upward at an angle, the tight fit between the first sealing part and the inner wall of the recess can be improved, thereby improving the sealing performance between the back pressure chamber and the high pressure chamber.

[0046] Since the pressure in the back pressure chamber is greater than the pressure in the low pressure chamber, and the end of the second sealing part that is away from the main body extends downward at an angle, the tight fit between the second sealing part and the inner wall of the recess can be improved, thereby improving the sealing performance between the back pressure chamber and the low pressure chamber.

[0047] According to a second aspect of this utility model, a refrigeration device is provided, including a compressor as provided in any of the above technical solutions, and thus possesses all the beneficial technical effects of the compressor, which will not be repeated here.

[0048] Additional aspects and advantages of the present invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of the present invention. Attached Figure Description

[0049] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0050] Figure 1 One of the structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0051] Figure 2 One of the partial structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0052] Figure 3 A second schematic diagram of the structure of a compressor according to an embodiment of the present invention is shown;

[0053] Figure 4 A second partial structural schematic diagram of a compressor according to an embodiment of the present invention is shown;

[0054] Figure 5 A schematic diagram of the structure of a floating plate assembly according to an embodiment of the present invention is shown;

[0055] Figure 6 An exploded view of a float assembly according to an embodiment of the present invention is shown;

[0056] Figure 7 A partial exploded view of a compressor according to an embodiment of the present invention is shown.

[0057] in, Figures 1 to 7The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0058] 100 Compressor, 110 Compression Mechanism, 111 Moving Disc, 112 Stationary Disc, 113 Compression Chamber, 114 Recess, 115 Exhaust Port, 116 Back Pressure Hole, 117 Back Pressure Chamber, 120 Float Assembly, 121 First Float, 122 Second Float, 123 Limiting Hole, 124 Limiting Post, 125 First Limiting Section, 126 Second Limiting Section, 127 Clearance Groove, 128 Rib, 129 Stop, 130 Seal, 131 Body, 132 First Sealing Part, 133 Second Sealing Part, 134 Sealing Edge, 135 Clearance Hole, 140 Housing, 150 Partition Plate, 160 First Chamber, 170 Second Chamber, 180 Gap, 190 Central Axis. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0061] The following reference Figures 1 to 7 This invention describes a compressor 100 and a refrigeration device provided according to some embodiments of the present invention.

[0062] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a compressor 100 is proposed. The compressor 100 includes: a compression mechanism 110, which includes a moving plate 111 and a stationary plate 112. The stationary plate 112 and the moving plate 111 form a compression chamber 113. A recess 114 is provided on the side of the stationary plate 112 away from the moving plate 111. A float assembly 120 is movably disposed in the recess 114 and surrounds the inner wall of the recess 114 to form a back pressure chamber 117. The back pressure chamber 117 can communicate with the compression chamber 113. The float assembly 120 includes a sealing element 130. The sealing element 130 includes: a body 131; a first sealing part 132 and a second sealing part 133, which are located on both sides of the body 131 along the radial direction of the stationary plate 112 and are connected to the body 131. The first sealing part 132 and the second sealing part 133 abut against the inner wall of the recess 114.

[0063] The compressor 100 provided in this embodiment of the present invention includes a compression mechanism 110 and a float assembly 120. Specifically, the compression mechanism 110 includes a moving disk 111 and a stationary disk 112, and the stationary disk 112 and the moving disk 111 form a compression chamber 113.

[0064] The float assembly 120 is movably disposed in the recess 114. Specifically, during the operation of the compressor 100, the moving plate 111 rotates relative to the stationary plate 112, and the back pressure chamber 117 is connected to the compression chamber 113, thereby introducing medium pressure into the back pressure chamber 117. Under the action of the medium pressure in the back pressure chamber 117, the float assembly 120 moves away from the compression chamber 113 until the float assembly 120 abuts against the partition plate 150 to form a seal, thereby realizing the establishment of the low pressure chamber, the high pressure chamber, and the medium pressure chamber (back pressure chamber 117).

[0065] It is understandable that when the compressor 100 stops, the pressure in the compression chamber 113 becomes low pressure because the moving plate 111 stops moving. Since the compression chamber 113 is connected to the back pressure chamber 117, the pressure in the back pressure chamber 117 decreases. The float assembly 120 moves to the side where the compression chamber 113 is located, and the high pressure chamber is connected to the low pressure chamber, thereby achieving pressure balance among the low pressure chamber, the medium pressure chamber, and the high pressure chamber.

[0066] The float assembly 120 includes a seal 130, which includes a body 131, a first sealing part 132, and a second sealing part 133. The first sealing part 132 and the second sealing part 133 are located on both sides of the body 131 along the radial direction of the stationary plate 112. That is, the first sealing part 132 and the second sealing part 133 are located on both sides of the body 131 in the radial direction. Since the first sealing part 132 and the second sealing part 133 abut against the inner wall of the recess 114, the back pressure chamber 117 and the high pressure chamber, as well as the back pressure chamber 117 and the low pressure chamber, are sealed to prevent gas leakage and thus ensure the efficiency and reliability of the compressor 100.

[0067] Since the first sealing part 132 and the second sealing part 133 are respectively connected to the body 131, that is, the sealing element 130 is a structural component, compared with the float plate assembly with inner and outer cups in the related technology, it can effectively reduce the gas leakage channels, significantly improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber in the related technology, and improve the energy efficiency and reliability of the compressor 100 during operation.

[0068] Furthermore, since the gas leakage problem has been improved, the dimensional and positional tolerance requirements and riveting manufacturability requirements of the individual structures (first float 121, second float 122 and seal 130) in the float assembly 120 can be appropriately relaxed. This reduces the manufacturing precision requirements of the individual structures in the float assembly 120 and simplifies the structure, which is beneficial to reducing the production cost of the compressor 100.

[0069] In some embodiments, the body 131, the first sealing part 132, and the second sealing part 133 may be an integral structure.

[0070] In this embodiment, since the main body 131, the first sealing part 132 and the second sealing part 133 are integrated, the gas leakage channels can be further reduced, the sealing effect between the low-pressure chamber, the medium-pressure chamber and the high-pressure chamber can be improved, thereby improving the energy efficiency and reliability of the compressor 100 during operation.

[0071] In addition, the integrated structure facilitates the mass production of the seal 130, thereby reducing the manufacturing difficulty of the seal 130 and thus reducing the production cost of the compressor 100.

[0072] like Figure 5 and Figure 6As shown, in some embodiments, the float assembly 120 may optionally include a first float 121 and a second float 122, wherein the first float 121 is provided with a limiting hole 123; the second float 122 is arranged along the axial direction of the stationary disk 112 with the first float 121, and the body 131 is disposed between the first float 121 and the second float 122. The first float 121 is located on the side of the body 131 away from the compression chamber 113, and the body 131 is provided with a clearance hole 135. The second float 122 is provided with a limiting post 124 on the side away from the compression chamber 113. The limiting post 124 passes through the clearance hole 135 and is inserted into the limiting hole 123.

[0073] In this embodiment, the float assembly 120 is further defined as including a first float 121 and a second float 122. Specifically, the body 131 is disposed between the first float 121 and the second float 122, and the first float 121 is located above the body 131.

[0074] The first float 121 is provided with a limiting hole 123, the second float 122 is provided with a limiting post 124, and the body 131 is provided with a clearance hole 135. The limiting post 124 passes through the clearance hole 135 and is inserted into the limiting hole 123. This achieves the goal of having the radial sides of a sealing structure (seal 130) abut against the inner wall of the groove, thereby reducing gas leakage channels and improving the gas leakage problem between the low-pressure chamber, the medium-pressure chamber, and the high-pressure chamber. At the same time, it achieves the matching and limiting of the seal 130, the first float 121, and the second float 122.

[0075] Optionally, there are multiple limiting holes 123, which are arranged at intervals along the circumference of the stationary plate 112. It can be understood that there are multiple limiting posts 124 and multiple clearance holes 135. The multiple limiting holes 123 correspond one-to-one with the multiple limiting posts 124 and the multiple clearance holes 135. Each limiting post 124 passes through a clearance hole 135 and is inserted into a limiting hole 123.

[0076] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the seal 130 may optionally include a sealing edge 134, which is disposed on the side of the body 131 away from the compression chamber 113 and located at the clearance hole 135. At least a portion of the sealing edge 134 is located between the wall of the limiting hole 123 and the outer wall of the limiting post 124.

[0077] In this embodiment, the seal 130 is further defined as including a sealing edge 134. Specifically, the sealing edge 134 is disposed on the side of the body 131 away from the compression chamber 113, and the sealing edge 134 is located at the clearance hole 135.

[0078] Since at least part of the sealing edge 134 is located between the hole wall of the limiting hole 123 and the outer wall of the limiting post 124, the position between the outer wall of the limiting post 124 and the hole wall of the limiting hole 123 is sealed, that is, the position where there may be a gas leakage channel in the float assembly 120 is further sealed, which effectively improves the sealing effect between the back pressure chamber 117 and the low pressure chamber and the high pressure chamber, and is conducive to further improving the working efficiency and reliability of the compressor 100.

[0079] Furthermore, since a sealing edge 134 is provided on the side of the body 131 away from compression, the situation of misinstalling multiple seals 130 can be effectively prevented during the manufacturing process, thus improving manufacturability.

[0080] Optionally, the sealing edge 134 and the body 131 are an integral structure.

[0081] In some embodiments, optionally, the side of the sealing edge 134 facing the limiting post 124 abuts against the limiting post 124; and / or the side of the sealing edge 134 away from the limiting post 124 abuts against the wall of the limiting hole 123.

[0082] In this embodiment, the side of the sealing edge 134 facing the limiting post 124 abuts against the limiting post 124, meaning the inner wall of the sealing edge 134 abuts against the limiting post 124. And / or, the side of the sealing edge 134 away from the limiting post 124 abuts against the wall of the limiting hole 123, meaning the outer wall of the sealing edge 134 abuts against the wall of the limiting hole 123. Optionally, during the manufacturing process, the float assembly 120 adopts a riveting process. That is, after the limiting post 124 passes through the clearance hole 135 and is inserted into the limiting hole 123, the limiting post 124 is riveted to increase the diameter of the limiting post 124, thereby expanding and compressing the sealing edge 134. This achieves a tight fit between the inner wall of the sealing edge 134 and the limiting post 124, and between the outer wall of the sealing edge 134 and the hole wall of the limiting hole 123. This further improves the sealing effect of the float assembly 120, reduces gas leakage channels, and thus helps to improve the energy efficiency and reliability of the compressor 100 during operation.

[0083] like Figure 5 As shown, in some embodiments, optionally, the limiting post 124 includes a first limiting segment 125 and a second limiting segment 126, wherein at least a portion of the sealing edge 134 is located between the hole wall of the limiting hole 123 and the outer wall of the first limiting segment 125, and the second limiting segment 126 is located on the side of the first limiting segment 125 away from the compression chamber 113 and is partially exposed to the first float plate 121.

[0084] In this embodiment, the limiting post 124 is defined to include a first limiting segment 125 and a second limiting segment 126. Specifically, the second limiting post 124 is disposed on the side of the first limiting post 124 away from the compression chamber 113, that is, the second limiting post 124 is located at the top of the first limiting post 124.

[0085] At least a portion of the sealing edge 134 is located between the wall of the limiting hole 123 and the outer wall of the first limiting section 125, that is, the sealing edge 134 is squeezed in the front half of the limiting post 124, thereby further improving the sealing performance of the float assembly 120, improving the gas leakage problem between the low-pressure chamber, the medium-pressure chamber and the high-pressure chamber, facilitating the assembly of the float assembly 120, and helping to improve the assembly efficiency of the compressor 100.

[0086] Furthermore, since a portion of the second limiting segment 126 is exposed outside the first float 121, that is, the end of the second limiting segment 126 away from the first limiting segment 125 extends beyond the outer surface of the first float 121, it is convenient to rivet the limiting post 124, so that the limiting post 124 can expand and squeeze the sealing edge 134, which improves the manufacturability of the float assembly 120 and helps to further improve the sealing performance of the back pressure cavity 117.

[0087] In some embodiments, the second limiting segment 126 may optionally be interference-fitted with the limiting hole 123.

[0088] In this embodiment, since the second limiting segment 126 is interference-fitted with the limiting hole 123, that is, the front half of the limiting post 124 presses the sealing edge 134 and the rear half of the limiting post 124 presses the hole wall of the limiting hole 123, the sealing effect of the float assembly 120 can be further improved and the gas leakage problem can be improved. Therefore, the form and position tolerance requirements and riveting manufacturability requirements of the individual structures (first float 121, second float 122 and sealing element 130) in the float assembly 120 can be appropriately relaxed, that is, the manufacturing precision requirements of the individual structures in the float assembly 120 can be reduced, and the structure can be simplified, which is conducive to reducing the production cost of the compressor 100.

[0089] like Figure 6 As shown, in some embodiments, optionally, the sealing edge 134 is provided around the clearance hole 135.

[0090] In this embodiment, since the sealing edge 134 is arranged around the clearance hole 135, that is, the sealing edge 134 is constructed as an annular sealing edge 134, that is, the position between the limiting post 124 and the hole wall of the limiting hole 123 is sealed on the outer periphery of the limiting post 124, which further improves the sealing effect of the back pressure cavity 117 and enhances the working efficiency and reliability of the compressor 100.

[0091] like Figure 5As shown, in some embodiments, optionally, the second float 122 is provided with a relief groove 127 on the side away from the compression chamber 113, and the limiting post 124 is provided in the relief groove 127. Along the radial direction of the stationary plate 112, there is a gap 180 between the groove wall of the relief groove 127 and the outer wall of the limiting post 124. Along the axial direction of the stationary plate 112, the sealing edge 134 is arranged opposite to the gap 180.

[0092] In this embodiment, a relief groove 127 is provided on the side of the second float 122 away from the compression chamber 113. Specifically, a limiting post 124 is disposed in the relief groove 127, and the groove wall of the relief groove 127 and the outer wall of the limiting post 124 have a gap 180 in the radial direction of the stationary plate 112, and the sealing edge 134 and the gap 180 are opposite to each other along the axial direction of the stationary plate 112.

[0093] Understandably, during the manufacturing process of the float assembly 120, the limiting post 124 is first passed through the clearance hole 135 and inserted into the limiting hole 123. Then, the limiting post 124 is riveted, increasing its diameter. The expansion of the limiting post 124 compresses the sealing edge 134, thereby achieving a sealing effect. By maintaining a certain radial gap 180 between the outer wall of the limiting post 124 and the groove wall of the clearance groove 127, a riveting deformation space can be provided for the limiting post 124 and the sealing edge 134. This improves the sealing performance of the back pressure cavity 117 while ensuring the reliability of the riveting process of the float assembly 120.

[0094] like Figure 5 and Figure 6 As shown, in some embodiments, optionally, at least one of the first float plate 121 and the second float plate 122 is provided with a rib 128, which abuts against the body 131.

[0095] In this embodiment, specifically, the first float 121 is provided with a protruding rib 128, or the second float 122 is provided with a protruding rib 128, or both the first float 121 and the second float 122 are provided with protruding ribs 128. The specific configuration can be adjusted according to actual needs.

[0096] Since the rib 128 abuts against the body 131, the bonding force between the first float 121 and the body 131, and / or between the second float 122 and the body 131, can be increased. This helps to further reduce the gas leakage channels in the float assembly 120, significantly improve the gas leakage problem between the low-pressure chamber, medium-pressure chamber and high-pressure chamber in related technologies, and improve the energy efficiency and reliability of the compressor 100 during operation.

[0097] Optionally, there may be multiple ribs 128, which are arranged radially along the stationary disc 112.

[0098] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the compressor 100 may optionally include a housing 140 and a partition plate 150, wherein the partition plate 150 is disposed within the housing 140 and divides the housing 140 into a first chamber 160 and a second chamber 170, the compression mechanism 110 is disposed within the first chamber 160, the stationary plate 112 is provided with an exhaust port 115 and a back pressure hole 116, the compression chamber 113 communicates with the second chamber 170 through the exhaust port 115, and the compression chamber 113 can communicate with the back pressure chamber 117 through the back pressure hole 116; the first float plate 121 is provided with a stop portion 129 on the side away from the seal 130, and the stop portion 129 can abut against the partition plate 150.

[0099] In this embodiment, the compressor 100 is further defined as including a housing 140 and a partition plate 150. Specifically, the partition plate 150 is disposed inside the housing 140 and divides the housing 140 into a first chamber 160 and a second chamber 170. Since the compression mechanism 110 is disposed inside the first chamber 160 and the compression chamber 113 is connected to the second chamber 170 through the exhaust port 115, that is, the first chamber 160 is a low-pressure chamber and the second chamber 170 is a high-pressure chamber.

[0100] During the operation of the compressor 100, the moving plate 111 rotates relative to the stationary plate 112. The back pressure chamber 117 is connected to the compression chamber 113 through the back pressure hole 116, thereby introducing medium pressure into the back pressure chamber 117. Under the action of the medium pressure in the back pressure chamber 117, the float assembly 120 moves away from the compression chamber 113 until the stop part 129 on the first float 121 abuts against the partition plate 150 to form a seal, thereby realizing the establishment of the low pressure chamber (first chamber 160), the high pressure chamber (second chamber 170), and the medium pressure chamber (back pressure chamber 117).

[0101] Understandably, when the compressor 100 stops, the pressure in the compression chamber 113 becomes low pressure because the moving plate 111 stops moving. Since the compression chamber 113 is connected to the back pressure chamber 117, the pressure in the back pressure chamber 117 decreases. The float assembly 120 moves to the side where the compression chamber 113 is located, the stop part 129 separates from the partition plate 150, and the high pressure chamber (second chamber 170) is connected to the low pressure chamber (first chamber 160), thereby achieving pressure balance among the low pressure chamber, the medium pressure chamber, and the high pressure chamber.

[0102] like Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, optionally, the first sealing part 132 is disposed closer to the central axis 190 of the stationary disc 112 than the second sealing part 133; one end of the first sealing part 132 is connected to the body 131, and the other end extends obliquely away from the compression chamber 113; one end of the second sealing part 133 is connected to the body 131, and the other end extends obliquely towards the compression chamber 113.

[0103] In this embodiment, since the first sealing part 132 is located close to the central axis 190 of the stationary disc 112, that is, the first sealing part 132 is located radially inside the second sealing part 133. That is, the first sealing part 132 is close to the high-pressure chamber, and the second sealing part 133 is close to the low-pressure chamber.

[0104] Since the pressure in the back pressure chamber 117 is less than the pressure in the high pressure chamber, and the end of the first sealing part 132 away from the body 131 extends upward at an angle, the tight fit between the first sealing part 132 and the inner wall of the recess 114 can be improved, thereby improving the sealing performance between the back pressure chamber 117 and the high pressure chamber.

[0105] Since the pressure in the back pressure chamber 117 is greater than the pressure in the low pressure chamber, and the end of the second sealing part 133 away from the body 131 extends downward at an angle, the tight fit between the second sealing part 133 and the inner wall of the recess 114 can be improved, thereby improving the sealing performance between the back pressure chamber 117 and the low pressure chamber.

[0106] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in one specific embodiment, optionally, the scroll compressor (compressor 100) includes a housing (casing 140) and a compression assembly installed within the housing. The compression assembly includes a main frame, a stationary scroll plate (stationary plate 112), a moving scroll plate (moving plate 111), a float assembly 120, a crankshaft, a motor, and a secondary frame. The main frame is fixed to the upper part within the housing, and the stationary scroll plate (stationary plate 112) and the moving scroll plate (moving plate 111) are installed on top of it. The pump body portion formed by the combination of the stationary and moving scroll plates constitutes a scroll compression chamber (compression chamber 113). The floating plate assembly mounting structure (recess 114) and intermediate pressure hole (back pressure hole 116) on the stationary vortex disk (stationary disk 112) cooperate with the floating plate assembly 120 to establish an intermediate pressure chamber (back pressure chamber 117). At the same time, the intermediate pressure forces the floating plate assembly 120 to move upward, and the upper surface (stop part 129) of the upper floating plate (first floating plate 121) contacts the high and low pressure partition (separator plate 150) to form a seal, thereby establishing a low pressure chamber (first chamber 160) and a high pressure chamber (second chamber 170).

[0107] In related technologies, the sealing cups of float assemblies are composed of two riveted pieces, an inner cup and an outer cup, with a gas leakage channel between them. This application combines the inner and outer sealing cups into a single piece, meaning there is only one sealing cup (seal 130), offering advantages such as simple structure and low cost. This improves the technical problem of gas leakage between the low-pressure, medium-pressure, and high-pressure chambers of scroll compressors in related technologies. Simultaneously, it effectively prevents the accidental installation of multiple sealing cups during manufacturing, improving manufacturability. Because the gas leakage channel is improved compared to related technologies, the dimensional and positional tolerances and riveting manufacturability requirements for the upper float (first float 121), lower float (second float 122), and the sealing cup unit (seal 130) can be relaxed, thereby reducing costs.

[0108] The float assembly 120 is composed of an upper float (first float 121), a lower float (second float 122), and a sealing cup (sealant 130) riveted together. The lower float (second float 122) is provided with a rivet post (limiting post 124), and the upper float (first float 121) is provided with a corresponding rivet post hole (limiting hole 123). The sealing cup (seal 130) is provided with a hole (avoidance hole 135) to avoid the rivet post (limiting post 124). At the same time, a flange (sealing edge 134) is provided around the hole (avoidance hole 135). The flange (sealing edge 134) cooperates with the rivet post (limiting post 124) of the lower float plate (second float plate 122). When the float plate assembly 120 is riveted, the rivet post (limiting post 124) expands and squeezes the flange (sealing edge 134) of the sealing cup (seal 130) corresponding to the rivet post hole (limiting hole 123), thereby achieving a sealing effect.

[0109] The inner and outer rings (first sealing part 132 and second sealing part 133) of the sealing cup (sealing element 130) respectively contact the inner and outer walls (inner wall of recess 114) of the stationary vortex disk (stationary disk 112) to form a pressure chamber (back pressure chamber 117).

[0110] Specifically, during operation, the moving scroll disk (moving disk 111) revolves around the center of the crankshaft main shaft, and the scroll disk compression chamber (compression chamber 113), the intermediate pressure hole (back pressure hole 116), and the float assembly 120 establish the intermediate pressure chamber (back pressure chamber 117). After the intermediate pressure chamber (back pressure chamber 117) is established, the intermediate pressure forces the float assembly 120 to move upward, and the upper surface (stop part 129) of the upper float (first float 121) contacts the high and low pressure partition (separator 150) to form a seal, thereby establishing the low pressure chamber (first chamber 160) and the high pressure chamber (second chamber 170). When the compressor 100 stops, the intermediate pressure chamber (back pressure chamber 117) is connected to the low pressure chamber through the intermediate pressure hole (back pressure hole 116) of the stationary scroll plate (stationary plate 112). The pressure in the intermediate pressure chamber decreases, and the float assembly 120 moves downward under the pressure of the high pressure chamber (second chamber 170). The high pressure chamber (second chamber 170) is connected to the low pressure chamber (first chamber 160), thereby achieving pressure balance among the low pressure chamber, intermediate pressure chamber, and high pressure chamber.

[0111] According to a second aspect of the present invention, a refrigeration device is provided, including a compressor 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the compressor 100, which will not be repeated here.

[0112] Alternatively, the refrigeration equipment may include air conditioners, refrigerators, or freezers.

[0113] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0114] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0115] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compressor, characterized in that, include: A compression mechanism, comprising a moving disc and a stationary disc, wherein the stationary disc and the moving disc form a compression cavity, and a recess is provided on the side of the stationary disc opposite to the moving disc; A float assembly is movably disposed in the recess and surrounds the inner wall of the recess to form a back pressure cavity, the back pressure cavity being able to communicate with the compression cavity. The float assembly includes a sealing element, the sealing element comprising: ontology; The first sealing part and the second sealing part are located on both sides of the body along the radial direction of the stationary plate and are respectively connected to the body. The first sealing part and the second sealing part abut against the inner wall of the recess.

2. The compressor according to claim 1, characterized in that, The main body, the first sealing part, and the second sealing part are an integral structure.

3. The compressor according to claim 1, characterized in that, The floating plate assembly also includes: The first float plate is provided with a limiting hole; The second float plate is arranged along the axial direction of the stationary plate with the first float plate. The body is located between the first float plate and the second float plate. The first float plate is located on the side of the body away from the compression cavity. The body is provided with a clearance hole. The second float plate is provided with a limiting post on the side away from the compression cavity. The limiting post passes through the clearance hole and is inserted into the limiting hole.

4. The compressor according to claim 3, characterized in that, The sealing element further includes: A sealing edge is provided on the side of the body away from the compression chamber and located at the clearance hole. At least a portion of the sealing edge is located between the hole wall of the limiting hole and the outer wall of the limiting post.

5. The compressor according to claim 4, characterized in that, The side of the sealing edge facing the limiting post abuts against the limiting post; and / or the side of the sealing edge away from the limiting post abuts against the wall of the limiting hole.

6. The compressor according to claim 4, characterized in that, The limiting post includes: The first limiting segment, at least a portion of the sealing edge is located between the wall of the limiting hole and the outer wall of the first limiting segment; The second limiting section is located on the side of the first limiting section away from the compression cavity and is partially exposed outside the first float.

7. The compressor according to claim 6, characterized in that, The second limiting segment is interference-fitted with the limiting hole.

8. The compressor according to claim 4, characterized in that, The sealing edge is provided around the clearance hole.

9. The compressor according to claim 4, characterized in that, The second float plate is also provided with a clearance groove on the side away from the compression chamber. The limiting post is provided in the clearance groove. Along the radial direction of the stationary plate, there is a gap between the groove wall of the clearance groove and the outer wall of the limiting post. Along the axial direction of the stationary plate, the sealing edge is arranged opposite to the gap.

10. The compressor according to any one of claims 3 to 9, characterized in that, At least one of the first float plate and the second float plate is provided with a rib, and the rib abuts against the body.

11. The compressor according to any one of claims 3 to 9, characterized in that, The compressor also includes: case; A partition plate is disposed inside the housing and divides the housing into a first chamber and a second chamber. The compression mechanism is disposed in the first chamber. The stationary plate is provided with an exhaust port and a back pressure hole. The compression chamber is connected to the second chamber through the exhaust port and can be connected to the back pressure chamber through the back pressure hole. The first float plate has a stop portion on the side away from the seal, and the stop portion can abut against the partition plate.

12. The compressor according to any one of claims 1 to 9, characterized in that, The first sealing part is positioned closer to the central axis of the stationary disc than the second sealing part; One end of the first sealing part is connected to the body, and the other end extends obliquely away from the compression cavity. One end of the second sealing part is connected to the body, and the other end extends obliquely towards the compression cavity.

13. A refrigeration device, characterized in that, Includes the compressor as described in any one of claims 1 to 12.

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