Static scroll plate assembly, compressor and refrigeration equipment

Abstract

The utility model provides a static vortex plate assembly, a compressor and refrigeration equipment. The static vortex plate assembly comprises a static vortex plate provided with an exhaust port and an exhaust groove, the groove side wall of the exhaust groove comprises a connecting wall and a guide wall, and the connecting wall is located on one side of the guide wall in the axial direction of the static vortex plate; a guide part and a connecting part are arranged on the peripheral side of the valve seat, the guide part and the guide wall are in guide fit and are oppositely arranged, the connecting part is connected with the connecting wall, a guide groove is formed in the side, facing the exhaust port, of the valve seat, and the valve seat is further provided with an exhaust channel; the check valve column is in sliding connection with the guide groove, and the check valve column can move relative to the valve seat so as to be switched between a first position and a second position; when the check valve column is located at the first position, the check valve column is separated from the exhaust port, and the exhaust port communicates with the exhaust channel. When the check valve column is located at the second position, the check valve column covers the exhaust port in a sealing mode so as to disconnect the exhaust port from the exhaust channel. The noise generated when the compressor operates can be effectively reduced.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more specifically, to a static scroll assembly, a compressor, and a refrigeration device. Background Technology

[0002] As one of the core components of refrigeration equipment, the compressor is also the main source of noise in refrigeration equipment. Reducing the noise of the compressor during operation is the main means of reducing the noise of refrigeration equipment.

[0003] Installing an anti-backflow device above the exhaust port of the stationary scroll is an effective way to reduce compressor exhaust noise. In related technologies, the matching structure between the anti-backflow device (which includes a guide groove and a check valve column, with the check valve column slidably connected to the guide groove) and the stationary scroll is unreasonable. It fails to consider the importance of the matching dimensions between the guide groove and the mounting surface of the stationary scroll, and lacks a structure to ensure the matching dimensions (e.g., perpendicularity) between the guide groove and the mounting surface of the stationary scroll. When the check valve column of the anti-backflow device slides along the axial direction of the stationary scroll at the guide groove, it easily collides with the wall of the guide groove, leading to poor contact and resulting in higher compressor operating noise. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the first aspect of this application proposes a static vortex disk assembly.

[0006] The second aspect of this application proposes a compressor.

[0007] The third aspect of this application proposes a refrigeration device.

[0008] In view of the above, the first aspect of this application proposes a stationary vortex disk assembly, comprising: a stationary vortex disk having an exhaust port and an exhaust groove, the exhaust port being located on one side of the exhaust groove and penetrating the bottom wall of the exhaust groove, the side wall of the exhaust groove including a connecting wall and a guide wall, the connecting wall being located on one side of the guide wall along the axial direction of the stationary vortex disk; a valve seat being disposed in the exhaust groove, the outer periphery of the valve seat having a guide portion and a connecting portion, the guide portion being guided and matched with the guide wall and disposed opposite to it, the connecting portion being connected to the connecting wall, the side of the valve seat facing the exhaust port having a guide groove, and the valve seat also having an exhaust passage; a check valve column being slidably connected to the guide groove, the check valve column being movable relative to the valve seat to switch between a first position and a second position; when the check valve column is in the first position, the check valve column is separated from the exhaust port, and the exhaust port is connected to the exhaust passage; when the check valve column is in the second position, the check valve column covers the exhaust port to disconnect the connection between the exhaust port and the exhaust passage.

[0009] The present application provides a stationary scroll assembly including a stationary scroll, a valve seat, and a check valve stem.

[0010] The stationary vortex disc is equipped with an exhaust port and an exhaust groove. The exhaust groove includes a bottom wall and a side wall, and the side wall of the exhaust valve is connected to the outer edge of the bottom wall of the exhaust valve. The exhaust port is located on one side of the exhaust groove and penetrates the bottom wall of the exhaust groove.

[0011] The sidewalls of the exhaust channel are divided into a connecting wall and a guide wall, with the connecting wall located on one side of the guide wall along the axial direction of the stationary vortex disk. Specifically, the connecting wall is located above the guide wall, or below the guide wall.

[0012] The valve seat is located in the exhaust groove, meaning the exhaust groove serves as the mounting carrier for the valve seat, functioning to install and fix it. The outer periphery of the valve seat has a guide portion and a connecting portion. The guide portion guides and cooperates with the guide wall and is positioned opposite to it, while the connecting portion connects to the connecting wall. A guide groove is provided on the side of the valve seat facing the exhaust port, and the check valve stem is slidably connected to the guide groove. Specifically, at least a portion of the check valve stem is located within the guide groove and can slide relative to the guide groove along the axial direction of the stationary scroll.

[0013] Specifically, when assembling the valve seat along the axial direction of the stationary vortex disk with the guide wall located below the connecting wall, the guide part first guides and engages with the guide wall of the exhaust groove to limit the position of the valve seat and the exhaust groove. As the valve seat is gradually inserted into the exhaust groove, the connecting part aligns and connects with the connecting wall under the guidance of the guide wall and the guide part.

[0014] Specifically, when assembling the valve seat along the axial direction of the stationary vortex disk with the guide wall above the connecting wall, the connecting part is first inserted into the exhaust groove, and then the valve seat is gradually inserted into the exhaust groove. The guide part and the guide wall of the exhaust groove guide and cooperate to limit the position of the valve seat and the exhaust groove. After the valve seat and the exhaust groove are aligned, the connecting part is then connected to the connecting wall.

[0015] Understandably, the sidewalls of the exhaust groove are arranged around an axis perpendicular to the bottom wall of the exhaust groove. The guide portion and guide wall cooperate, thus indirectly limiting the positional relationship between the guide groove and the bottom wall of the exhaust groove. This ensures a high degree of perpendicularity between the guide groove and the bottom wall of the exhaust groove. Consequently, when the check valve column slides relative to the guide groove along the axial direction of the stationary scroll, the probability of collision between the check valve column and the groove wall is significantly reduced, thereby helping to reduce compressor noise during operation.

[0016] Furthermore, in related technologies, because the mating dimensions of the guide groove and the mounting surface of the stationary scroll are not limited, a portion of the end face of the check valve column easily contacts the mounting surface of the stationary scroll when it first moves to the second position. In this application, because the bottom walls of the guide groove and the exhaust groove can maintain a high degree of verticality, the entire end face of the check valve column contacts the bottom wall of the exhaust groove when it first moves to the second position. Therefore, this application improves the contact area between the check valve column and the bottom wall of the exhaust groove when the check valve column first moves to the second position, which is beneficial for further reducing the noise during compressor operation.

[0017] Specifically, the compressor also includes a crankshaft and a moving scroll. The crankshaft drives the moving scroll to perform an eccentric rotating scroll meshing motion. The moving scroll and the stationary scroll enclose the compression chamber. As the moving scroll rotates, the compression chamber is gradually compressed and becomes smaller, gradually approaching the exhaust chamber. When the gas pressure in the compression chamber reaches the compressor's exhaust pressure and connects with the exhaust chamber, the check valve column is subjected to a gas force greater than its own weight. The check valve column slides along the guide groove of the valve seat to move from the second position to the first position. The exhaust port of the stationary scroll is opened, and the exhaust port connects with the exhaust passage of the valve seat. The gas flows through the exhaust port to the exhaust passage, then to the exhaust chamber of the compressor housing, and finally exits the compressor through the exhaust pipe on the housing that connects with the exhaust chamber.

[0018] Specifically, when the compressor operates under under-compression conditions or when the compressor stops, high-pressure gas flows back, impacting the check valve column and moving it along the guide groove towards the side closer to the exhaust port (i.e., towards the second position). When the check valve column moves to the bottom wall of the exhaust groove, it will seal the exhaust port, thus disconnecting the exhaust port from the exhaust passage. This prevents high-pressure gas from flowing back from the exhaust port into the compression chamber, effectively solving the problem of high compressor noise caused by high-pressure gas backflow when the compressor is operating under under-compression conditions. It also prevents the compressor from reversing due to high-pressure gas backflow when the compressor stops, reducing the high and low pressure balancing time and improving the reliability of the compressor.

[0019] Understandably, the bottom wall of the guide groove acts as a limiter for the check valve column. When the compressor discharges, the high-pressure gas impacts the check valve column, driving it to move away from the discharge port (i.e., to the first position). When the discharge port is opened, the check valve column abuts against the bottom wall of the guide groove, thus limiting its movement within the discharge groove and preventing it from coming off. This design enriches the function of the valve seat, allowing it to also limit the maximum movement distance of the check valve column along the axial direction of the stationary scroll.

[0020] In some technical solutions, optionally, the axis of either the guide groove or the check valve stem is perpendicular to the plane containing the bottom wall of the exhaust groove.

[0021] In this technical solution, the mating structure of the guide groove, check valve column, and exhaust groove is further defined such that the axis of either the guide groove or the check valve column is perpendicular to the plane containing the bottom wall of the exhaust groove. That is, the axis of the guide groove is perpendicular to the plane containing the bottom wall of the exhaust groove, and the axis of the check valve column is perpendicular to the plane containing the bottom wall of the exhaust groove. This configuration allows both the guide groove and the check valve column to maintain a high degree of perpendicularity relative to the bottom wall of the exhaust groove. When the check valve column slides along the axial direction of the stationary scroll relative to the guide groove, the probability of collision between the check valve column and the groove wall is significantly reduced, preventing the check valve column from getting stuck in the guide groove and providing reliable structural support for effectively reducing compressor operating noise. Simultaneously, this structural configuration also ensures that when the check valve column just moves to the second position, the entire end face of the check valve column is in contact with the bottom wall of the exhaust groove, further reducing compressor operating noise.

[0022] Understandably, the sidewalls of the guide groove are arranged around the axis of the guide groove. The axis of the guide groove is perpendicular to the plane containing the bottom wall of the guide groove, and the axis of the guide groove is also perpendicular to the plane containing the bottom wall of the exhaust groove.

[0023] In some technical solutions, optionally, the length of the guide portion is greater than the length of the connecting portion along the axial direction of the stationary volute.

[0024] In this technical solution, the mating structure of the guide part and the connecting part is further defined.

[0025] Along the axial direction of the stationary volute, the length of the guide portion is greater than the length of the connecting portion. That is, the axial length of the guide portion is greater than the axial length of the connecting portion.

[0026] This design increases the guiding contact area between the valve seat and the vent groove of the stationary vortex plate, providing greater guiding support for the effective alignment and connection of the connecting part and the connecting wall. This helps reduce the assembly difficulty of the valve seat and the stationary vortex plate, making product assembly easier.

[0027] In particular, when the guide portion is located below the connecting portion along the axial direction of the stationary vortex, the guide portion of the valve seat enters the exhaust groove before the connecting portion. The connecting portion then inserts into the exhaust groove and aligns with the connecting wall. Since the axial length of the guide portion is greater than the axial length of the connecting portion, it effectively limits the fit dimensions between the connecting portion and the connecting wall, preventing the connecting portion from tilting relative to the connecting wall. This ensures effective connection between the connecting portion and the connecting wall and also has the advantage of easy assembly.

[0028] In addition, when the guide wall is above the connecting wall along the axial direction of the stationary vortex, the connecting part of the valve seat enters the exhaust groove before the guide part. As the guide part is inserted into the exhaust groove, the guide part and the guide wall guide and cooperate. Then the position of the connecting part and the connecting wall can be gradually finely adjusted so that while ensuring the effective connection between the connecting part and the connecting wall, the bottom wall of the guide groove and the exhaust groove can also be kept highly perpendicular.

[0029] In some technical solutions, optionally, the guide part and the guide wall are clearance-fitted; along the radial direction of the stationary volute, the clearance length between the guide part and the guide wall is less than the clearance length between the check valve column and the groove sidewall of the guide groove.

[0030] In this technical solution, the mating structure of the guide section, guide wall, check valve column and guide groove is further defined.

[0031] The guide part and the guide wall are fitted with a clearance.

[0032] Along the radial direction of the stationary scroll, the gap length between the guide portion and the guide wall is less than the gap length between the check valve stem and the side wall of the guide groove. In other words, the radial length of the gap between the guide portion and the guide wall is less than the radial length of the gap between the check valve stem and the side wall of the guide groove. This design ensures that the valve seat can be smoothly inserted into the exhaust groove during assembly, while minimizing the radial length of the gap between the guide portion and the guide wall, preventing the valve seat from tilting relative to the exhaust groove. This ensures the alignment accuracy of the connecting portion and the connecting wall, guaranteeing an effective connection between them while maintaining a high degree of perpendicularity between the bottom walls of the guide groove and the exhaust groove.

[0033] In some technical solutions, the exhaust channel is optionally located on the periphery of the guide groove; there are multiple exhaust channels, and the multiple exhaust channels are arranged at intervals along the circumference of the guide groove.

[0034] In this technical solution, the exhaust channel is located on the periphery of the guide groove.

[0035] The system has multiple exhaust channels, which are arranged at circumferential intervals along the guide groove. This arrangement increases the number of exhaust channels and expands their placement. During compressor operation, exhaust can be simultaneously discharged from multiple channels into the exhaust chamber, ensuring uniform exhaust flow and preventing exhaust throttling, thus providing structural support for the effective operation of the compressor.

[0036] In some technical solutions, optionally, the sum of the cross-sectional areas of multiple exhaust channels is greater than the cross-sectional area of ​​the exhaust port.

[0037] In this technical solution, the cooperative structure of multiple exhaust channels and exhaust ports is further defined.

[0038] The sum of the cross-sectional areas of the multiple exhaust channels is greater than the cross-sectional area of ​​the exhaust port. This design avoids exhaust throttling and ensures the compressor's energy efficiency.

[0039] It is understandable that if the sum of the cross-sectional areas of multiple exhaust channels is less than or equal to the cross-sectional area of ​​the exhaust port, it will lead to exhaust throttling, which will affect the exhaust effect of the compressor, reduce the compressor's energy efficiency, and increase the compressor's operating noise.

[0040] In some technical solutions, the valve seat and the bottom wall of the exhaust groove can be arranged at intervals.

[0041] In this technical solution, the mating structure of the valve seat and the exhaust groove is further defined.

[0042] The valve seat and the bottom wall of the exhaust groove are spaced apart. That is, there is a gap between the valve seat and the bottom wall of the exhaust groove. This ensures a secure assembly of the valve seat with the connecting wall of the stationary scroll plate via the connecting part, while reducing the precision requirements for the valve seat's machining, thus improving product processing efficiency. If the end face of the valve seat facing the exhaust port abuts against the bottom wall of the exhaust groove, the machining precision requirements for that end face will increase; otherwise, the valve seat may tilt. Furthermore, by spaced the valve seat from the bottom wall of the exhaust groove, the material input for the valve seat can be reduced, which helps to reduce the weight of the stationary scroll plate assembly and lower its production cost.

[0043] In some technical solutions, optionally, when the check valve column is in the second position, the cross-sectional area of ​​the area enclosed by the outer peripheral surface of the check valve column, the groove wall of the exhaust groove, and the side of the valve seat facing the exhaust port is greater than the cross-sectional area of ​​the exhaust port.

[0044] In this technical solution, the mating structure of the valve seat and the stationary scroll plate is further defined.

[0045] When the check valve column is in the second position, the cross-sectional area of ​​the flow passage enclosed by the outer circumference of the check valve column, the groove wall of the exhaust groove, and the side of the valve seat facing the exhaust port is larger than the cross-sectional area of ​​the exhaust port. This setting prevents exhaust throttling when the check valve column is in the first position, thus ensuring the compressor's energy efficiency.

[0046] It is understandable that if the cross-sectional area of ​​the area enclosed by the outer circumference of the check valve column, the groove wall of the exhaust groove, and the side of the valve seat facing the exhaust port is less than or equal to the cross-sectional area of ​​the exhaust port, then when the check valve column is in the first position, the exhaust throttling phenomenon will occur, which will affect the exhaust effect of the compressor, reduce the energy efficiency of the compressor, and increase the operating noise of the compressor.

[0047] In some technical solutions, the connecting part and the connecting wall may optionally be screwed together; or the connecting part and the connecting wall may be connected by fasteners.

[0048] In this technical solution, the specific mating structure of the connecting part and the connecting wall is further defined.

[0049] The connection between the connecting part and the connecting wall is screwed together, which facilitates operation and allows for quick installation of the valve seat and stationary scroll without the need for complex tools. Simultaneously, the screw connection effectively reduces gas leakage, especially under high-pressure conditions, ensuring the sealing of the valve seat and stationary scroll. Furthermore, this design allows for self-locking through pre-tightening force, reducing the risk of loosening due to vibration during operation.

[0050] Alternatively, the connecting part and the connecting wall can be connected by fasteners. This configuration offers the advantage of easy assembly and disassembly. Furthermore, the connection position of the connecting wall and the connecting part can be adaptively adjusted according to the guiding fit between the guide wall and the guide part, thus meeting the requirement of maintaining a high degree of verticality at the bottom walls of the guide groove and the exhaust groove.

[0051] For example, fasteners include screws, rivets, etc., which will not be listed here.

[0052] In some technical solutions, optionally, when the check valve stem is in the second position, the radial length of the portion of the check valve stem located on the periphery of the exhaust port is greater than or equal to 0.5 mm.

[0053] In this technical solution, the mating structure of the check valve stem and the exhaust port is further defined such that when the check valve stem is in the second position, the radial length of the portion of the check valve stem located on the periphery of the exhaust port is greater than or equal to 0.5 mm. That is, the minimum overlap dimension between the check valve stem and the exhaust port is 0.5 mm.

[0054] This setting ensures the effectiveness of sealing the exhaust port when the check valve column is in the second position, preventing gas leakage through the connection between the check valve column and the exhaust port.

[0055] If the radial length of the portion of the check valve stem located around the exhaust port is less than 0.5 mm, the connection between the check valve stem and the exhaust port is prone to deformation, affecting the compressor's performance. Therefore, the structural design of this application provides reliable structural support to ensure the efficient and stable operation of the compressor.

[0056] In some technical solutions, optionally, the guide wall and the guide part have the same shape; the guide wall is arranged around the axis of the stationary vortex disk; or there are multiple guide walls, which are arranged at intervals around the axis of the stationary vortex disk; or the guide wall is an arc-shaped wall extending around the axis of the stationary vortex disk.

[0057] In this technical solution, the mating structure of the guide wall and the guide part is defined.

[0058] The guide wall and the guide section have the same shape.

[0059] When the guide wall is arranged around the axis of the stationary vortex disk, the guide part is also arranged around the axis of the stationary vortex disk. This arrangement can guide the valve seat from all directions and angles, ensuring an effective fit between the valve seat and the stationary vortex disk, and allowing the bottom walls of the guide groove and the exhaust groove to maintain a high degree of verticality.

[0060] When there are multiple guide walls arranged at intervals around the axis of the stationary volute, there are also multiple guide sections arranged at intervals around the axis of the stationary volute. This arrangement can guide the valve seat from multiple directions and angles, ensuring an effective fit between the valve seat and the stationary volute, and maintaining a high degree of verticality of the bottom walls of the guide groove and exhaust groove. Simultaneously, this structural design reduces the machining amount of the guide sections and guide walls, simplifying the product's manufacturing process.

[0061] When the guide wall is an arc-shaped wall extending around the axis of the stationary vortex, the guide portion is an arc-shaped portion extending around the axis of the stationary vortex. This configuration can guide the valve seat from multiple directions and angles, ensuring an effective fit between the valve seat and the stationary vortex, and allowing the bottom walls of the guide groove and the exhaust groove to maintain a high degree of verticality.

[0062] In some technical solutions, optionally, the outer peripheral surface of the valve seat facing the exhaust port is closer to the bottom wall of the exhaust groove than the opening of the guide groove.

[0063] In this technical solution, the mating structure of the valve seat and the stationary scroll plate is further defined.

[0064] The outer circumferential surface of the valve seat facing the exhaust port is closer to the bottom wall of the exhaust groove than the opening of the guide groove. In other words, the distance from the outer circumferential surface of the valve seat facing the exhaust port to the bottom wall of the exhaust groove is less than the distance from the opening of the guide groove to the bottom wall of the exhaust groove. This design ensures effective guidance of the check valve stem by the guide groove while reducing the material input of the valve seat, which helps to reduce the weight of the stationary scroll assembly and lower its production cost.

[0065] In some technical solutions, optionally, a return air passage is provided on the side of the valve seat away from the exhaust port, and the return air passage penetrates the bottom wall of the guide groove; a groove is provided on the side of the check valve column away from the exhaust port, and the groove is arranged opposite to the return air passage.

[0066] In this technical solution, the mating structure of the valve seat and the check valve column is further defined.

[0067] A return air passage is provided on the side of the valve seat away from the exhaust port, and the return air passage runs through the bottom wall of the guide groove.

[0068] It is understandable that the return air passage is connected to the compressor's exhaust chamber.

[0069] Specifically, when the compressor is operating under undercompression conditions or when the compressor stops, the high-pressure gas flows back and impacts the check valve column through the return gas passage, moving towards the exhaust port to seal the exhaust port. This prevents the high-pressure gas from flowing back from the exhaust port into the compression chamber, reduces the operating noise of the compressor, prevents the compressor from reversing when it stops, and improves the reliability of the compressor.

[0070] Furthermore, a groove is provided on the side of the check valve column opposite to the exhaust port, and the groove is positioned opposite to the return gas passage. When the compressor is operating under under-compression conditions, or when the compressor stops, the high-pressure gas flows back and impacts the check valve column, moving it towards the exhaust port to seal it. This increases the contact area between the high-pressure gas and the check valve column, allowing the check valve column to move quickly towards the exhaust port, further preventing high-pressure gas from flowing back from the exhaust port into the compression chamber when the compressor is operating under under-compression conditions or when the compressor stops.

[0071] At the same time, the groove also serves as a process groove, facilitating the machining of the check valve column.

[0072] In some technical solutions, optionally, the guide portion is located above the connecting portion or below the connecting portion along the axial direction of the stationary volute.

[0073] In this technical solution, the positional relationship between the guide part and the connecting part is further defined.

[0074] The guide part is positioned to match the guide wall, and the connecting part is positioned to match the connecting wall.

[0075] When the guide portion is located above the connecting portion along the axial direction of the stationary volute, the guide wall is located above the connecting wall. When assembling the valve seat, the connecting portion is first inserted into the exhaust groove, and then the valve seat is gradually inserted into the exhaust groove. The guide portion and the guide wall of the exhaust groove guide and cooperate to limit the position of the valve seat and the exhaust groove. After the valve seat and the exhaust groove are aligned, the connecting portion is then connected to the connecting wall.

[0076] When the guide portion is located below the connecting portion along the axial direction of the stationary volute, the guide wall is located below the connecting wall. When assembling the valve seat, the guide portion first guides and engages with the guide wall of the exhaust groove to limit the position of the valve seat and the exhaust groove. As the valve seat is gradually inserted into the exhaust groove, the connecting portion aligns and connects with the connecting wall under the guidance of the guide wall and the guide portion.

[0077] The second aspect of this application provides a compressor comprising: a stationary scroll assembly as described in the first aspect; a moving scroll that, together with the stationary scroll, encloses a compression chamber, the compression chamber being connected to an exhaust channel via an exhaust port.

[0078] The compressor provided in this application includes the stationary scroll assembly and the moving scroll as described in the first aspect. Because the compressor includes the stationary scroll assembly as in the first aspect, it possesses all the beneficial effects of the aforementioned stationary scroll assembly, which will not be elaborated upon here.

[0079] The stationary scroll and the moving scroll enclose a compression chamber, which is connected to the exhaust port and exhaust channel. Specifically, during compressor operation, as the moving scroll rotates, the compression chamber is gradually compressed and moves closer to the exhaust chamber. When the gas pressure in the compression chamber reaches the compressor's exhaust pressure and connects with the exhaust chamber, the check valve column is subjected to a gas force greater than its own weight. The check valve column slides along the guide groove of the valve seat to move from the second position to the first position. The exhaust port of the stationary scroll is opened, and the exhaust port connects with the exhaust channel of the valve seat. The gas flows through the exhaust port to the exhaust channel, then to the exhaust chamber of the compressor housing, and finally exits the compressor through the exhaust pipe on the housing that connects with the exhaust chamber.

[0080] A third aspect of this application provides a refrigeration device comprising: the static scroll assembly of the first aspect; or the compressor of the second aspect.

[0081] The refrigeration equipment provided in this application includes the scroll plate assembly as described in the first aspect or the compressor as described in the second aspect. Since the refrigeration equipment includes the scroll plate assembly as described in the first aspect or the compressor as described in the second aspect, it possesses all the beneficial effects of the aforementioned scroll plate assembly or compressor, which will not be described in detail here.

[0082] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0083] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0084] Figure 1 A partial structural schematic diagram of the static vortex disk assembly according to the first embodiment of this application is shown;

[0085] Figure 2 A partial structural schematic diagram of the static vortex disk assembly according to a second embodiment of this application is shown;

[0086] Figure 3 An exploded view of the stationary vortex disk assembly of the first embodiment of this application is shown;

[0087] Figure 4 A partial structural schematic diagram of a compressor according to an embodiment of this application is shown.

[0088] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0089] 10. Static scroll assembly, 100. Static scroll, 110. Exhaust port, 120. Exhaust groove, 122. Bottom wall of exhaust groove, 124. Side wall of exhaust groove, 1242. Connecting wall, 1244. Guide wall, 200. Valve seat, 210. Guide part, 220. Connecting part, 230. Guide groove, 232. Bottom wall of guide groove, 234. Opening of guide groove, 240. Exhaust passage, 250. Return passage, 300. Check valve column, 310. Groove, 40. Compressor, 410. Moving scroll, 420. Compression chamber, 430. Exhaust chamber, 440. Housing, 450. First partition, 460. Second partition, 470. Cross slip ring, 480. Main frame, 490. Crankshaft, 500. Rotor, 510. Stator, 520. Sub-frame, 530. Intake chamber, 540. Intake pipe, 550. Exhaust pipe. Detailed Implementation

[0090] To better understand the above-mentioned objectives, features, and advantages of this application, the application 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.

[0091] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0092] The following reference Figures 1 to 4 This application describes some embodiments of a static scroll assembly 10, a compressor 40, and a refrigeration device.

[0093] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a stationary vortex assembly 10 according to some embodiments of this application includes a stationary vortex 100, a valve seat 200, and a check valve stem 300.

[0094] The stationary vortex disk 100 is provided with an exhaust port 110 and an exhaust groove 120.

[0095] The exhaust port 110 is located on one side of the exhaust groove 120, and the exhaust port 110 penetrates the bottom wall 122 of the exhaust groove.

[0096] The sidewall 124 of the exhaust channel includes a connecting wall 1242 and a guide wall 1244.

[0097] Along the axial direction of the stationary volute 100, the connecting wall 1242 is located on one side of the guide wall 1244.

[0098] Valve seat 200 is located in exhaust groove 120.

[0099] The outer periphery of the valve seat 200 has a guide portion 210 and a connecting portion 220.

[0100] The guide section 210 is guided and matched with the guide wall 1244 and is arranged opposite to each other.

[0101] The connecting part 220 is connected to the connecting wall 1242.

[0102] The valve seat 200 has a guide groove 230 on the side facing the exhaust port 110.

[0103] Valve seat 200 is also provided with exhaust passage 240.

[0104] The check valve column 300 is slidably connected to the guide groove 230.

[0105] The check valve stem 300 is movable relative to the valve seat 200 to switch between a first position and a second position.

[0106] When the check valve spool 300 is in the first position, the check valve spool 300 is separated from the exhaust port 110, and the exhaust port 110 is connected to the exhaust passage 240.

[0107] When the check valve spool 300 is in the second position, the check valve spool 300 seals the exhaust port 110 to disconnect the exhaust port 110 from the exhaust passage 240.

[0108] The static scroll assembly 10 provided in this application includes a static scroll 100, a valve seat 200, and a check valve spool 300.

[0109] The stationary vortex disk 100 is provided with an exhaust port 110 and an exhaust groove 120. The exhaust groove 120 includes a bottom wall and a side wall, and the side wall of the exhaust valve is connected to the outer edge of the bottom wall of the exhaust valve. The exhaust port 110 is located on one side of the exhaust groove 120 and penetrates the bottom wall 122 of the exhaust groove.

[0110] The sidewall 124 of the exhaust groove is divided such that it includes a connecting wall 1242 and a guide wall 1244. Along the axial direction of the stationary vortex disk 100, the connecting wall 1242 is located on one side of the guide wall 1244. Specifically, as... Figure 1 and Figure 3 As shown, the connecting wall 1242 is located above the guide wall 1244, or, as... Figure 2 As shown, the connecting wall 1242 is located below the guide wall 1244.

[0111] The valve seat 200 is disposed in the exhaust groove 120, that is, the exhaust groove 120 serves as the mounting carrier for the valve seat 200, and has the function of installing and fixing the valve seat 200. The outer periphery of the valve seat 200 has a guide portion 210 and a connecting portion 220. The guide portion 210 is guided and engaged with the guide wall 1244 and is disposed opposite to it, and the connecting portion 220 is connected to the connecting wall 1242. The valve seat 200 has a guide groove 230 on the side facing the exhaust port 110, and the check valve column 300 is slidably connected to the guide groove 230. Specifically, at least a portion of the check valve column 300 is located in the guide groove 230 and can slide relative to the guide groove 230 along the axial direction of the stationary scroll 100.

[0112] Specifically, when assembling the valve seat 200 with the guide wall 1244 located below the connecting wall 1242 along the axial direction of the stationary vortex disk 100, the guide portion 210 first guides and engages with the guide wall 1244 of the exhaust groove 120 to limit the position of the valve seat 200 and the exhaust groove 120. As the valve seat 200 is gradually inserted into the exhaust groove 120, under the guidance of the guide wall 1244 and the guide portion 210, the connecting portion 220 aligns with and connects to the connecting wall 1242.

[0113] Specifically, when assembling the valve seat 200 with the guide wall 1244 located above the connecting wall 1242 along the axial direction of the stationary vortex disk 100, the connecting part 220 is first inserted into the exhaust groove 120, and then the valve seat 200 is gradually inserted into the exhaust groove 120. The guide part 210 and the guide wall 1244 of the exhaust groove 120 guide and cooperate to limit the position of the valve seat 200 and the exhaust groove 120. After the valve seat 200 and the exhaust groove 120 are aligned, the connecting part 220 is then connected to the connecting wall 1242.

[0114] It is understood that the sidewall 124 of the exhaust groove is arranged around an axis, which is perpendicular to the bottom wall 122 of the exhaust groove. The guide portion 210 and the guide wall 1244 are guided and engaged. Therefore, the engagement of the guide portion 210 and the guide wall 1244 can indirectly limit the positional relationship between the guide groove 230 and the bottom wall 122 of the exhaust groove, so that the guide groove 230 and the bottom wall 122 of the exhaust groove can maintain a high degree of perpendicularity. In this way, when the check valve column 300 slides relative to the guide groove 230 along the axial direction of the stationary scroll 100, the probability of the check valve column 300 colliding with the groove wall of the guide groove 230 can be significantly reduced, thereby helping to reduce the noise of the compressor 40 during operation.

[0115] Furthermore, in related technologies, since the mating dimensions of the guide groove and the mounting surface of the stationary scroll are not limited, a portion of the end face of the check valve column is prone to contacting the mounting surface of the stationary scroll when the check valve column has just moved to the second position. In this application, because the guide groove 230 and the bottom wall 122 of the exhaust groove can maintain a high degree of perpendicularity, the entire end face of the check valve column 300 is in contact with the bottom wall 122 of the exhaust groove when the check valve column 300 has just moved to the second position. Therefore, this application improves the contact area between the check valve column 300 and the bottom wall 122 of the exhaust groove when the check valve column 300 has just moved to the second position, which is beneficial to further reduce the noise during the operation of the compressor 40.

[0116] Specifically, the compressor 40 also includes a crankshaft 490 and a moving scroll 410. The crankshaft 490 drives the moving scroll 410 to perform an eccentric rotating scroll meshing motion. The moving scroll 410 and the stationary scroll 100 enclose the compression chamber 420. As the moving scroll 410 rotates, the compression chamber 420 is gradually compressed and becomes smaller, gradually approaching the exhaust chamber 430. When the gas pressure in the compression chamber 420 reaches the exhaust pressure of the compressor 40 and connects with the exhaust chamber 430, the check valve column 300 is subjected to a gas force greater than its own weight. The check valve column 300 slides along the guide groove 230 of the valve seat 200 to move from the second position to the first position. The exhaust port 110 of the stationary scroll 100 is opened, and the exhaust port 110 connects with the exhaust passage 240 of the valve seat 200. The gas flows through the exhaust port 110 to the exhaust passage 240, and then to the exhaust chamber 430 of the housing 440 of the compressor 40. Finally, it is discharged from the compressor 40 through the exhaust pipe 550 on the housing 440 that connects with the exhaust chamber 430.

[0117] Specifically, when the compressor 40 operates under under-compression conditions, or when the compressor 40 stops, the high-pressure gas flows back and impacts the check valve column 300, which moves along the guide groove 230 towards the side closer to the exhaust port 110 (that is, towards the second position). When the check valve column 300 moves to the bottom wall 122 of the exhaust groove, it will seal the exhaust port 110, thereby disconnecting the connection between the exhaust port 110 and the exhaust passage 240. This can prevent the high-pressure gas from flowing back from the exhaust port 110 into the compression chamber 420, effectively solving the problem of high operating noise caused by the high-pressure gas flow when the compressor 40 operates under under-compression conditions. It also avoids the problem of the compressor 40 reversing due to the high-pressure gas flow when the compressor 40 stops, reducing the high and low pressure balance time and improving the reliability of the compressor 40.

[0118] Understandably, the bottom wall 232 of the guide groove serves to limit the movement of the check valve spool 300. When the compressor 40 discharges gas, the high-pressure gas impacts the check valve spool 300, driving it to move away from the exhaust port 110 (i.e., to the first position). When the exhaust port 110 is opened, the check valve spool 300 abuts against the bottom wall 232 of the guide groove, thus limiting its movement and preventing it from coming off the exhaust groove 120. This design enriches the functionality of the valve seat 200, allowing it to also limit the maximum movement distance of the check valve spool 300 along the axial direction of the stationary scroll 100.

[0119] It is understood that the mounting surface of the static vortex disk in the background art is the bottom wall 122 of the exhaust groove in this application.

[0120] In some embodiments, exemplarily, the axis of either the guide groove 230 or the check valve column 300 is perpendicular to the plane containing the bottom wall 122 of the exhaust groove.

[0121] In this embodiment, the mating structure of the guide groove 230, the check valve column 300, and the exhaust groove 120 is further defined such that the axis of either the guide groove 230 or the check valve column 300 is perpendicular to the plane containing the bottom wall 122 of the exhaust groove. That is, the axis of the guide groove 230 is perpendicular to the plane containing the bottom wall 122 of the exhaust groove, and the axis of the check valve column 300 is perpendicular to the plane containing the bottom wall 122 of the exhaust groove. This arrangement allows both the guide groove 230 and the check valve column 300 to maintain a high degree of perpendicularity relative to the bottom wall 122 of the exhaust groove. This significantly reduces the probability of the check valve column 300 colliding with the groove wall of the guide groove 230 when it slides along the axial direction of the stationary scroll 100 relative to the guide groove 230, preventing the check valve column 300 from getting stuck in the guide groove 230 and providing reliable structural support for effectively reducing the operating noise of the compressor 40. Meanwhile, this structural design also ensures that when the check valve column 300 just moves to the second position, the entire end face of the check valve column 300 is in contact with the bottom wall 122 of the exhaust groove, so as to further reduce the noise of the compressor 40 during operation.

[0122] It is understood that the sidewall of the guide groove 230 is arranged around the axis of the guide groove 230. The axis of the guide groove 230 is perpendicular to the plane where the bottom wall 232 of the guide groove is located, and the axis of the guide groove 230 is also perpendicular to the plane where the bottom wall 122 of the exhaust groove is located.

[0123] In some embodiments, exemplarily, the length of the guide portion 210 is greater than the length of the connecting portion 220 along the axial direction of the stationary volute 100.

[0124] In this embodiment, the mating structure of the guide portion 210 and the connecting portion 220 is further defined.

[0125] Along the axial direction of the stationary volute 100, the length of the guide portion 210 is greater than the length of the connecting portion 220. That is, the axial length of the guide portion 210 is greater than the axial length of the connecting portion 220.

[0126] This design increases the guiding mating area of ​​the exhaust groove 120 between the valve seat 200 and the stationary vortex plate 100, providing greater guiding support for the effective alignment and connection of the connecting part 220 and the connecting wall 1242. This helps to reduce the assembly difficulty of the valve seat 200 and the stationary vortex plate 100 and facilitates product assembly.

[0127] In particular, when the guide portion 210 is located below the connecting portion 220 along the axial direction of the stationary vortex 100, the guide portion 210 of the valve seat 200 enters the exhaust groove 120 before the connecting portion 220. The connecting portion 220 then inserts into the exhaust groove 120 and aligns with the connecting wall 1242. Since the axial length of the guide portion 210 is greater than the axial length of the connecting portion 220, it effectively limits the mating dimensions of the connecting portion 220 and the connecting wall 1242, preventing the connecting portion 220 from tilting relative to the connecting wall 1242. This ensures effective connection between the connecting portion 220 and the connecting wall 1242 and has the advantage of easy assembly.

[0128] In addition, when the guide portion 210 is located above the connecting portion 220 along the axial direction of the stationary vortex disk 100, the connecting portion 220 of the valve seat 200 enters the exhaust groove 120 before the guide portion 210. As the guide portion 210 is inserted into the exhaust groove 120, the guide portion 210 and the guide wall 1244 are guided and engaged. Then, the positions of the connecting portion 220 and the connecting wall 1242 can be gradually finely adjusted so that while ensuring the effective connection between the connecting portion 220 and the connecting wall 1242, the guide groove 230 and the bottom wall 122 of the exhaust groove can also maintain a high degree of perpendicularity.

[0129] For example, the shape of the guide portion 210 is adapted to the shape of the guide wall 1244, and the shape of the connecting portion 220 is adapted to the shape of the connecting wall 1242. Along the axial direction of the stationary volute 100, the length of the guide portion 210 is greater than the length of the connecting portion 220, and the length of the guide wall 1244 is greater than the length of the connecting wall 1242.

[0130] In some embodiments, the guide portion 210 is exemplary in that it is clearance-fitted with the guide wall 1244.

[0131] Along the radial direction of the stationary volute 100, the gap length between the guide portion 210 and the guide wall 1244 is less than the gap length between the check valve column 300 and the groove sidewall of the guide groove 230.

[0132] In this embodiment, the mating structure of the guide portion 210, guide wall 1244, check valve column 300, and guide groove 230 is further defined.

[0133] The guide section 210 and the guide wall 1244 are fitted with a clearance.

[0134] Along the radial direction of the stationary vortex 100, the gap length between the guide portion 210 and the guide wall 1244 is less than the gap length between the check valve column 300 and the groove sidewall of the guide groove 230. That is, the radial length of the gap between the guide portion 210 and the guide wall 1244 is less than the radial length of the gap between the check valve column 300 and the groove sidewall of the guide groove 230. This arrangement ensures that the valve seat 200 can be smoothly inserted into the exhaust groove 120 during assembly, while also minimizing the radial length of the gap between the guide portion 210 and the guide wall 1244, preventing the valve seat 200 from tilting relative to the exhaust groove 120. This ensures the alignment accuracy of the connecting portion 220 and the connecting wall 1242, guaranteeing an effective connection between the connecting portion 220 and the connecting wall 1242, and maintaining a high degree of perpendicularity between the guide groove 230 and the bottom wall 122 of the exhaust groove.

[0135] In some embodiments, exemplarily, the exhaust passage 240 is located on the periphery of the guide groove 230.

[0136] There are multiple exhaust channels 240, and the multiple exhaust channels 240 are arranged at intervals along the circumference of the guide groove 230.

[0137] In this embodiment, the exhaust passage 240 is located on the periphery of the guide groove 230.

[0138] There are multiple exhaust channels 240, which are arranged at circumferential intervals along the guide groove 230. This arrangement increases the number of exhaust channels 240 and expands their layout. Thus, when the compressor 40 is running, exhaust can be simultaneously discharged from multiple exhaust channels 240 to the exhaust chamber 430. This ensures uniformity of exhaust and avoids exhaust throttling, providing structural support for the effective operation of the compressor 40.

[0139] For example, multiple exhaust channels 240 are arranged at equal intervals.

[0140] For example, a portion of the multiple exhaust channels 240 are arranged at equal intervals.

[0141] For example, the number of exhaust passages 240 may include 2, 3, 4 or 5, etc., which will not be listed here.

[0142] In some embodiments, for example, the sum of the cross-sectional areas of the plurality of exhaust channels 240 is greater than the cross-sectional area of ​​the exhaust port 110.

[0143] In this embodiment, the mating structure of multiple exhaust channels 240 and exhaust ports 110 is further defined.

[0144] The sum of the cross-sectional areas of the multiple exhaust passages 240 is greater than the cross-sectional area of ​​the exhaust port 110. This design avoids exhaust throttling and ensures the energy efficiency of the compressor 40.

[0145] It is understandable that if the sum of the cross-sectional areas of multiple exhaust channels 240 is less than or equal to the cross-sectional area of ​​the exhaust port 110, it will lead to exhaust throttling, which will affect the exhaust effect of the compressor 40, reduce the energy efficiency of the compressor 40, and increase the operating noise of the compressor 40.

[0146] It is understandable that when the exhaust passage 240 is cross-sectioned along the length direction perpendicular to the exhaust passage 240, the area enclosed by the inner contour line of the exhaust passage 240 in the cross-section is the flow cross-sectional area of ​​the exhaust passage 240.

[0147] It is understandable that when the exhaust port 110 is cross-sectioned along the length direction perpendicular to the exhaust port 110, the area enclosed by the port wall of the exhaust port 110 in the cross-section is the flow cross-sectional area of ​​the exhaust port 110.

[0148] In some embodiments, exemplarily, such as Figure 1 and Figure 2 As shown, the valve seat 200 and the bottom wall 122 of the exhaust groove are arranged at intervals.

[0149] In this embodiment, the mating structure of the valve seat 200 and the exhaust groove 120 is further defined.

[0150] The valve seat 200 is spaced apart from the bottom wall 122 of the exhaust groove. That is, there is a gap between the valve seat 200 and the bottom wall 122 of the exhaust groove. This ensures that the valve seat 200 is securely assembled with the connecting wall 1242 of the stationary scroll plate 100 via the connecting part 220, while reducing the machining accuracy requirements of the valve seat 200, thus improving product processing efficiency. If the end face of the valve seat 200 facing the exhaust port 110 abuts against the bottom wall 122 of the exhaust groove, the machining accuracy requirements for the end face of the valve seat 200 facing the exhaust port 110 will increase; otherwise, the valve seat 200 may tilt. Furthermore, by spaced apart from the bottom wall 122 of the exhaust groove, the material input for the valve seat 200 can be reduced, which helps to reduce the weight of the stationary scroll plate assembly 10 and lower its production cost.

[0151] In some embodiments, for example, when the check valve spool 300 is in the second position, the cross-sectional area of ​​the region enclosed by the outer peripheral surface of the check valve spool 300, the groove wall of the exhaust groove 120, and the side of the valve seat 200 facing the exhaust port 110 is greater than the cross-sectional area of ​​the exhaust port 110.

[0152] In this embodiment, the mating structure of the valve seat 200 and the stationary vortex disk 100 is further defined.

[0153] When the check valve spool 300 is in the second position, the cross-sectional area of ​​the region enclosed by the outer circumferential surface of the check valve spool 300, the groove wall of the exhaust groove 120, and the side of the valve seat 200 facing the exhaust port 110 is larger than the cross-sectional area of ​​the exhaust port 110. This arrangement prevents exhaust throttling when the check valve spool 300 is in the first position, thus ensuring the energy efficiency of the compressor 40.

[0154] It is understandable that if the cross-sectional area of ​​the area enclosed by the outer peripheral surface of the check valve column 300, the groove wall of the exhaust groove 120, and the side of the valve seat 200 facing the exhaust port 110 is less than or equal to the cross-sectional area of ​​the exhaust port 110, then when the check valve column 300 is in the first position, the exhaust throttling phenomenon will occur, which will affect the exhaust effect of the compressor 40, reduce the energy efficiency of the compressor 40, and increase the operating noise of the compressor 40.

[0155] It is understandable that when the check valve spool 300 is in the second position, the area enclosed by the outer circumferential surface of the check valve spool 300, the groove wall of the exhaust groove 120, and the side of the valve seat 200 facing the exhaust port 110 is called the exhaust area. A cross-section is taken of the exhaust area along the length perpendicular to the exhaust passage 240. In this cross-section, the area enclosed by the inner contour line of the exhaust area is the flow cross-sectional area of ​​the exhaust area.

[0156] It is understandable that when the exhaust port 110 is cross-sectioned along the length direction perpendicular to the exhaust port 110, the area enclosed by the port wall of the exhaust port 110 in the cross-section is the flow cross-sectional area of ​​the exhaust port 110.

[0157] In some embodiments, for example, the connecting portion 220 and the connecting wall 1242 are screwed together; or the connecting portion 220 and the connecting wall 1242 are connected by fasteners.

[0158] In this embodiment, the specific mating structure of the connecting portion 220 and the connecting wall 1242 is further defined.

[0159] The connecting part 220 and the connecting wall 1242 are screwed together, which facilitates operation and allows for quick installation of the valve seat 200 and the stationary scroll plate 100 without the need for complex tools. Simultaneously, the screw connection between the connecting part 220 and the connecting wall 1242 effectively reduces gas leakage, especially under high-pressure conditions, ensuring the sealing of the valve seat 200 and the stationary scroll plate 100. Furthermore, this design allows for self-locking through pre-tightening force, reducing the risk of loosening due to vibration during operation.

[0160] Alternatively, the connecting part 220 and the connecting wall 1242 can be connected by fasteners. This arrangement offers the advantage of easy assembly and disassembly. Furthermore, the connection position of the connecting wall 1242 and the connecting part 220 can be adaptively adjusted according to the guiding fit between the guide wall 1244 and the guide part 210, thus meeting the requirement of maintaining a high degree of verticality for the bottom wall 122 of the guide groove 230 and the exhaust groove.

[0161] For example, fasteners include screws, rivets, etc., which will not be listed here.

[0162] In some embodiments, exemplarily, when the check valve stem 300 is in the second position, the radial length of the portion of the check valve stem 300 located on the periphery of the exhaust port 110 is greater than or equal to 0.5 mm.

[0163] In this embodiment, the mating structure of the check valve stem 300 and the exhaust port 110 is further defined such that when the check valve stem 300 is in the second position, the radial length of the portion of the check valve stem 300 located around the exhaust port 110 is greater than or equal to 0.5 mm. That is, the minimum overlap dimension between the check valve stem 300 and the exhaust port 110 is 0.5 mm.

[0164] This setting ensures the effectiveness of sealing the exhaust port 110 when the check valve column 300 is in the second position, preventing gas leakage through the connection between the check valve column 300 and the exhaust port 110.

[0165] If the radial length of the portion of the check valve stem 300 located around the exhaust port 110 is less than 0.5 mm, the connection between the check valve stem 300 and the exhaust port 110 is prone to deformation, affecting the performance of the compressor 40. Therefore, the structural design of this application provides reliable structural support to ensure the efficient and stable operation of the compressor 40.

[0166] For example, the radial length of the portion of the check valve stem 300 located around the exhaust port 110 includes 0.6 mm, 0.7 mm, 0.8 mm, and 0.9 mm, etc., which will not be listed here.

[0167] In some embodiments, exemplarily, the guide wall 1244 and the guide portion 210 have the same shape; the guide wall 1244 is arranged around the axis of the stationary volute 100; or there are multiple guide walls 1244, which are arranged at intervals around the axis of the stationary volute 100; or the guide wall 1244 is an arcuate wall extending around the axis of the stationary volute 100.

[0168] In this embodiment, the mating structure of the guide wall 1244 and the guide portion 210 is defined.

[0169] The guide wall 1244 and the guide part 210 have the same shape.

[0170] When the guide wall 1244 is arranged around the axis of the stationary vortex disk 100, the guide portion 210 is also arranged around the axis of the stationary vortex disk 100. This arrangement can guide the valve seat 200 from all directions and angles, ensuring the effective fit between the valve seat 200 and the stationary vortex disk 100, and allowing the bottom wall 122 of the guide groove 230 and the exhaust groove to maintain a high degree of verticality.

[0171] When there are multiple guide walls 1244 arranged at intervals around the axis of the stationary volute 100, there are also multiple guide portions 210 arranged at intervals around the axis of the stationary volute 100. This arrangement can guide the valve seat 200 from multiple directions and angles, ensuring the effective fit between the valve seat 200 and the stationary volute 100, and allowing the bottom wall 122 of the guide groove 230 and the exhaust groove to maintain a high degree of perpendicularity. Simultaneously, this structural arrangement reduces the machining amount of the guide portions 210 and guide walls 1244, simplifying the product's manufacturing process.

[0172] When the guide wall 1244 is an arc-shaped wall extending around the axis of the stationary volute 100, the guide portion 210 is an arc-shaped portion extending around the axis of the stationary volute 100. This arrangement can guide the valve seat 200 from multiple directions and angles, ensuring the effective fit between the valve seat 200 and the stationary volute 100, and allowing the bottom wall 122 of the guide groove 230 and the exhaust groove to maintain a high degree of perpendicularity.

[0173] In some embodiments, exemplarily, such as Figure 1 As shown, the outer peripheral surface of the valve seat 200 facing the exhaust port 110 is closer to the bottom wall 122 of the exhaust groove than the opening 234 of the guide groove.

[0174] In this embodiment, the mating structure of the valve seat 200 and the stationary vortex disk 100 is further defined.

[0175] The outer peripheral surface of the valve seat 200 facing the exhaust port 110 is closer to the bottom wall 122 of the exhaust groove than the opening 234 of the guide groove. That is, the distance from the outer peripheral surface of the valve seat 200 facing the exhaust port 110 to the bottom wall 122 of the exhaust groove is less than the distance from the opening 234 of the guide groove to the bottom wall 122 of the exhaust groove. This arrangement ensures that the guide groove 230 effectively guides the check valve stem 300 while reducing the material input of the valve seat 200, which helps to reduce the weight of the stationary scroll assembly 10 and lower its production cost.

[0176] In some embodiments, exemplarily, such as Figure 1 , Figure 2 and Figure 3 As shown, the valve seat 200 has a return air passage 250 on the side opposite to the exhaust port 110.

[0177] The return air passage 250 penetrates the bottom wall 232 of the guide groove.

[0178] The check valve column 300 has a groove 310 on the side opposite to the exhaust port 110.

[0179] The groove 310 is positioned opposite to the return air channel 250.

[0180] In this embodiment, the mating structure of the valve seat 200 and the check valve stem 300 is further defined.

[0181] The valve seat 200 is provided with a return air passage 250 on the side opposite to the exhaust port 110, and the return air passage 250 passes through the bottom wall 232 of the guide groove.

[0182] It is understandable that the return air passage 250 is connected to the exhaust chamber 430 of the compressor 40.

[0183] Specifically, when the compressor 40 is operating under undercompression conditions, or when the compressor 40 stops, the high-pressure gas flows back and impacts the check valve column 300 through the return gas passage 250, moving towards the exhaust port 110 to seal the exhaust port 110. This prevents the high-pressure gas from flowing back from the exhaust port 110 into the compression chamber 420, reduces the operating noise of the compressor 40, prevents the compressor 40 from reversing when it stops, and improves the reliability of the compressor 40.

[0184] Furthermore, the check valve column 300 has a groove 310 on the side opposite to the exhaust port 110, and the groove 310 is arranged opposite to the return gas passage 250. When the compressor 40 is operating under undercompression conditions, or when the compressor 40 is stopped, the high-pressure gas flows back and impacts the check valve column 300 to move towards the exhaust port 110 to cover the exhaust port 110. This increases the contact area between the high-pressure gas and the check valve column 300, allowing the check valve column 300 to move quickly towards the exhaust port 110. This further prevents the high-pressure gas from flowing back from the exhaust port 110 into the compression chamber 420 when the compressor 40 is operating under undercompression conditions or when the compressor 40 is stopped.

[0185] Meanwhile, the groove 310 also serves as a process groove, facilitating the machining of the check valve column 300.

[0186] like Figure 4 As shown, a compressor 40 according to some embodiments of this application includes: a stationary scroll assembly 10 as described in any of the above embodiments; a moving scroll 410, which together with the stationary scroll 100 encloses a compression chamber 420, the compression chamber 420 being connected to an exhaust port 110.

[0187] In some embodiments, exemplarily, along the axial direction of the stationary volute 100, the guide portion 210 is located above the connecting portion 220, or the guide portion 210 is located below the connecting portion 220.

[0188] In this embodiment, the positional relationship between the guide portion 210 and the connecting portion 220 is further defined.

[0189] The guide portion 210 is positioned to match the guide wall 1244, and the connecting portion 220 is positioned to match the connecting wall 1242.

[0190] When the guide portion 210 is located above the connecting portion 220 along the axial direction of the stationary volute 100, the guide wall 1244 is located above the connecting wall 1242. When assembling the valve seat 200, the connecting portion 220 is first inserted into the exhaust groove 120, and then the valve seat 200 is gradually inserted into the exhaust groove 120. The guide portion 210 and the guide wall 1244 of the exhaust groove 120 guide and cooperate to limit the position of the valve seat 200 and the exhaust groove 120. After the valve seat 200 and the exhaust groove 120 are aligned, the connecting portion 220 is then connected to the connecting wall 1242.

[0191] When the guide portion 210 is located below the connecting portion 220 along the axial direction of the stationary volute 100, the guide wall 1244 is located below the connecting wall 1242. When assembling the valve seat 200, the guide portion 210 first guides and engages with the guide wall 1244 of the exhaust groove 120 to limit the position of the valve seat 200 and the exhaust groove 120. As the valve seat 200 is gradually inserted into the exhaust groove 120, under the guiding engagement of the guide wall 1244 and the guide portion 210, the connecting portion 220 aligns with and connects with the connecting wall 1242.

[0192] The compressor 40 provided in this application includes the stationary scroll assembly 10 and the moving scroll 410 in any of the above embodiments. Since the compressor 40 includes the stationary scroll assembly 10 in any of the above embodiments, it has all the beneficial effects of the stationary scroll assembly 10, which will not be described in detail here.

[0193] The stationary scroll 100 and the moving scroll 410 enclose a compression chamber 420. The compression chamber 420 is connected to the exhaust channel 120 through the exhaust port 110. Specifically, during the operation of the compressor 40, as the moving scroll 410 rotates, the compression chamber 420 is gradually compressed and becomes smaller, gradually approaching the exhaust chamber 430. When the gas pressure in the compression chamber 420 reaches the exhaust pressure of the compressor 40 and is connected to the exhaust chamber 430, the check valve column 300 is subjected to a gas force greater than its own weight. The check valve column 300 slides along the guide groove 230 of the valve seat 200 to move from the second position to the first position. The exhaust port 110 of the stationary scroll 100 is opened, and the exhaust port 110 is connected to the exhaust channel 240 of the valve seat 200. The gas flows through the exhaust port 110 to the exhaust channel 240, and then to the exhaust chamber 430 of the housing 440 of the compressor 40. Finally, it is discharged from the compressor 40 through the exhaust pipe 550 on the housing 440 that is connected to the exhaust chamber 430.

[0194] For example, such as Figure 4 As shown, the compressor 40 includes an exhaust chamber 430, a valve seat 200, a check valve column 300, a housing 440, a first partition 450, a second partition 460, a stationary scroll 100, a compression chamber 420, a moving scroll 410, a cross slip ring 470, a main frame 480, a crankshaft 490, a rotor 500, a stator 510, a secondary frame 520, an exhaust pipe 550, an exhaust port 110, an intake pipe 540, and an intake chamber 530. For example, the compression chamber 420 is a crescent-shaped cavity.

[0195] A refrigeration device according to some embodiments of the present application includes: a static scroll assembly 10 of any of the above embodiments; or a compressor 40 of the above embodiments.

[0196] The refrigeration equipment provided in this application includes the scroll plate assembly 10 of any of the above embodiments or the compressor 40 of the above embodiments. Since the refrigeration equipment includes the scroll plate assembly 10 of any of the above embodiments or the compressor 40 of the above embodiments, it has all the beneficial effects of the scroll plate assembly 10 or the compressor 40, which will not be described in detail here.

[0197] For example, in this application, the compressor 40 includes: a housing 440, on which an intake port and an exhaust port 110 are provided; a pump assembly disposed within the housing 440, the pump assembly having a communicating compression chamber 420 and an exhaust port 110; and an anti-backflow device installed at the upper end of the exhaust port 110 of the stationary volute 100, the anti-backflow device including a check valve spool 300 and a valve seat 200. The anti-backflow device is installed at the upper end of the exhaust port 110 of the stationary volute 100, and a guide groove 230 is formed inside the valve seat 200 to guide the sliding of the check valve spool 300; the check valve spool 300 is slidably connected to the guide groove 230, and the check valve spool 300 can move relative to the valve seat 200 to switch between a first position and a second position. When the check valve spool 300 is in the first position, the exhaust port 110 is opened, and when the check valve spool 300 is in the second position, the exhaust port 110 is closed. This can reduce the noise generated by the collision between the check valve column 300 and the upper end face of the exhaust port of the static vortex disc (i.e., the bottom wall 122 of the exhaust groove).

[0198] For example, compressor 40 includes a scroll compressor. Compressor 40 includes a valve seat 200; a stationary scroll 100 with the valve seat 200 fixed at its upper end, the stationary scroll 100 having an exhaust port 110; a moving scroll 410, which meshes with the stationary scroll 100 in a relatively eccentric rotational motion, the moving scroll 410 and the stationary scroll 100 enclosing a crescent-shaped compression cavity; and an anti-backflow device installed on the upper surface of the exhaust port 110 of the stationary scroll 100. The anti-backflow device includes a valve seat 200 and a check valve spool 300, the valve seat 200 having a guide groove 230, the check valve slidably connected to the guide groove 230, the check valve spool 300 being movable between the bottom wall 122 of the exhaust groove and the bottom wall 232 of the guide groove, and the check valve spool 300 being used to open and close the exhaust port 110.

[0199] For example, such as Figure 1 and Figure 3As shown, the outer periphery of the valve seat 200 has a guide portion 210 and a connecting portion 220. Along the axial direction of the stationary scroll 100, the connecting portion 220 is located above the guide portion 210. Taking the connecting portion 220 as a threaded portion as an example, the length of the threaded portion in the axial direction of the stationary scroll 100 is greater than or equal to 6 mm, and the threaded portion is screwed and fastened to the connecting wall 1242 of the stationary scroll 100. The length of the guide portion 210 in the axial direction of the stationary scroll 100 is greater than or equal to 9 mm, and the guide portion 210 is clearance-fitted with the guide wall 1244 of the stationary scroll 100. Along the radial direction of the stationary scroll 100, the clearance length between the guide portion 210 and the guide wall 1244 is less than the clearance length between the check valve column 300 and the groove sidewall of the guide groove 230. Along the axial direction of the stationary scroll 100, the length of the guide portion 210 is greater than the length of the threaded portion, and the difference between the length of the guide portion 210 and the length of the threaded portion is greater than or equal to 3 mm. For example, along the axial direction of the stationary volute 100, the difference between the length of the guide portion 210 and the length of the threaded portion is equal to 4mm, 5mm, or 6mm, etc., which will not be listed here.

[0200] For example, such as Figure 2 As shown, the outer periphery of the valve seat 200 has a guide portion 210 and a connecting portion 220. Along the axial direction of the stationary scroll 100, the connecting portion 220 is located below the guide portion 210. Taking the connecting portion 220 as a threaded portion as an example, the length of the threaded portion in the axial direction of the stationary scroll 100 is greater than or equal to 6 mm, and the threaded portion is screwed and fastened to the connecting wall 1242 of the stationary scroll 100. The length of the guide portion 210 in the axial direction of the stationary scroll 100 is greater than or equal to 9 mm, and the guide portion 210 is clearance-fitted with the guide wall 1244 of the stationary scroll 100. Along the radial direction of the stationary scroll 100, the clearance length between the guide portion 210 and the guide wall 1244 is less than the clearance length between the check valve column 300 and the groove sidewall of the guide groove 230. Along the axial direction of the stationary scroll 100, the length of the guide portion 210 is greater than the length of the threaded portion, and the difference between the length of the guide portion 210 and the length of the threaded portion is greater than or equal to 3 mm. For example, along the axial direction of the stationary volute 100, the difference between the length of the guide portion 210 and the length of the threaded portion is equal to 4mm, 5mm, or 6mm, etc., which will not be listed here.

[0201] For example, the valve seat 200 is provided with a plurality of exhaust channels 240, and the sum of the cross-sectional areas of the plurality of exhaust channels 240 is greater than the cross-sectional area of ​​the exhaust port 110.

[0202] For example, when the check valve spool 300 is in the second position, the cross-sectional area of ​​the region enclosed by the outer peripheral surface of the check valve spool 300, the groove wall of the exhaust groove 120, and the side of the valve seat 200 facing the exhaust port 110 is greater than the cross-sectional area of ​​the exhaust port 110.

[0203] For example, when the check valve stem 300 is in the second position, the radial length of the portion of the check valve stem 300 located on the periphery of the exhaust port 110 is greater than or equal to 0.5 mm.

[0204] For example, the exhaust passage 240 is cross-sectioned along the length direction perpendicular to the exhaust passage 240. In the cross-section, the shape enclosed by the inner contour of the exhaust passage 240 includes, but is not limited to, a circle, an arc, a waist shape, and a square.

[0205] For example, the valve seat 200 may be made of materials including but not limited to steel, aluminum, powder metallurgy materials and engineering plastics.

[0206] For example, the material of the check valve column 300 includes, but is not limited to, steel, aluminum, powder metallurgy materials and engineering plastics.

[0207] For example, the present application has reasonably configured the structure of the static vortex disk assembly 10, which can reduce the collision noise when the anti-backflow device is working and improve the reliability of the product.

[0208] For example, such as Figure 1 and Figure 3 As shown, the anti-backflow device of this application includes a valve seat 200 and a check valve spool 300. The guide portion 210 at the lower part of the valve seat 200 first guides and engages with the guide wall 1244 of the stationary volute 100, ensuring a high degree of perpendicularity between the anti-backflow device and the mounting surface of the stationary volute 100 (i.e., the bottom wall 122 of the exhaust groove). The device is then securely connected to the connecting wall 1242 of the stationary volute 100 via a threaded portion (i.e., the connecting portion 220) at the upper part of the valve seat 200. The check valve spool 300 is fitted inside the guide groove 230 of the valve seat 200, and slides freely between the bottom wall 232 of the guide groove and the bottom wall 122 of the exhaust groove. The anti-backflow device of this application not only improves the installation accuracy of the valve body, but also has one less part than the anti-backflow device of the compressor 40 in the related art (e.g., the anti-backflow device in the related art includes two valve seats 200), improving both the installation reliability and the structural reliability of the product.

[0209] For example, the crankshaft 490 drives the moving scroll 410 to perform an eccentric rotating scroll meshing motion, and the moving scroll 410 and the stationary scroll 100 enclose a crescent-shaped closed cavity (i.e., the compression cavity 420). As the rotating scroll 410 rotates, the compression chamber 420 is gradually compressed and shrinks, gradually approaching the exhaust chamber 430. When the gas pressure in the compression chamber 420 reaches the exhaust pressure of the compressor 40 and connects with the exhaust chamber 430, the check valve column 300 in the anti-backflow device is subjected to a gas force greater than its own weight. The check valve column 300 slides upward along the guide groove 230 of the valve seat 200, and the exhaust port 110 of the stationary scroll 100 is opened. The gas flows through the exhaust port 110 to the exhaust passage 240 of the valve seat 200, and then flows from the exhaust passage 240 of the valve seat 200 to the exhaust chamber 430 of the housing 440 of the compressor 40. Finally, the gas is discharged from the compressor 40 through the exhaust pipe 550 on the housing 440 that connects with the exhaust chamber 430. When the compressor 40 stops, there is a pressure difference between the suction chamber 530 and the discharge chamber 430 of the compressor 40, and the gas tends to flow back to the low-pressure chamber. At this time, the gas force on the upper and lower end faces of the check valve column 300 is basically the same. Under the influence of its own gravity, the check valve column 300 quickly slides down along the guide groove 230 of the valve seat 200 to the bottom wall 122 of the discharge groove of the stationary volute 100. The lower end face of the check valve column 300 fits against the discharge port 110 to cover the discharge port 110, cut off the backflow of gas, and close the discharge port 110.

[0210] In this application, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" 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 application based on the specific circumstances.

[0211] 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 this application. 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. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A static scroll assembly, characterized by, include: A stationary vortex disk is provided with an exhaust port and an exhaust groove. The exhaust port is located on one side of the exhaust groove and penetrates the bottom wall of the exhaust groove. The side wall of the exhaust groove includes a connecting wall and a guide wall. Along the axial direction of the stationary vortex disk, the connecting wall is located on one side of the guide wall. A valve seat is provided in the exhaust groove. The outer periphery of the valve seat has a guide portion and a connecting portion. The guide portion is guided and cooperates with the guide wall and is disposed opposite to it. The connecting portion is connected to the connecting wall. The valve seat has a guide groove on the side facing the exhaust port. The valve seat also has an exhaust channel. A check valve stem is slidably connected to the guide groove, and the check valve stem is movable relative to the valve seat to switch between a first position and a second position; When the check valve stem is in the first position, the check valve stem is separated from the exhaust port, and the exhaust port is connected to the exhaust passage; When the check valve is in the second position, the check valve seals the exhaust port to disconnect the exhaust port from the exhaust passage.

2. The static scroll assembly of claim 1, wherein, The axis of either the guide groove or the check valve stem is perpendicular to the plane containing the bottom wall of the exhaust groove.

3. The static scroll assembly of claim 1 or 2, wherein, Along the axial direction of the stationary volute, the length of the guide portion is greater than the length of the connecting portion.

4. The static scroll assembly of claim 1 or 2, wherein, The guide portion and the guide wall are in clearance fit; Along the radial direction of the stationary vortex disk, the gap length between the guide portion and the guide wall is less than the gap length between the check valve column and the groove sidewall of the guide groove.

5. The static scroll assembly of claim 1 or 2, wherein, The exhaust channel is located on the periphery of the guide groove; The number of exhaust channels is multiple, and the multiple exhaust channels are arranged at circumferential intervals along the guide groove.

6. The static scroll assembly of claim 5, wherein, The sum of the cross-sectional areas of the multiple exhaust channels is greater than the cross-sectional area of ​​the exhaust port.

7. The static vanes assembly of claim 1 or 2, wherein, The valve seat is arranged at intervals with the bottom wall of the exhaust channel.

8. The static canister assembly of claim 7, wherein, When the check valve stem is in the second position, the cross-sectional area of ​​the area enclosed by the outer peripheral surface of the check valve stem, the groove wall of the exhaust groove, and the side of the valve seat facing the exhaust port is greater than the cross-sectional area of ​​the exhaust port.

9. The static vanes assembly of claim 1 or 2, wherein, The connecting part and the connecting wall are screwed together; or The connecting part and the connecting wall are connected by fasteners.

10. The static scroll assembly of claim 1 or 2, wherein, When the check valve stem is in the second position, the radial length of the portion of the check valve stem located on the periphery of the exhaust port is greater than or equal to 0.5 mm.

11. The static scroll assembly of claim 1 or 2, wherein, The guide wall and the guide portion have the same shape; The guide wall is arranged around the axis of the stationary vortex disk; or The guide walls are multiple, and the multiple guide walls are arranged at intervals around the axis of the stationary vortex disk; or The guide wall is an arc-shaped wall extending around the axis of the stationary vortex disk.

12. The static scroll assembly of claim 1 or 2, wherein, The outer peripheral surface of the valve seat facing the exhaust port is closer to the bottom wall of the exhaust groove than the opening of the guide groove.

13. The static vanes assembly of claim 1 or 2, wherein, The valve seat is provided with a return air channel on the side opposite to the exhaust port, and the return air channel penetrates the bottom wall of the guide groove. The check valve column has a groove on the side opposite to the exhaust port, and the groove is arranged opposite to the return air passage.

14. The static scroll assembly according to claim 1 or 2, characterized in that, Along the axial direction of the stationary volute, the guide portion is located above the connecting portion, or the guide portion is located below the connecting portion.

15. A compressor characterized by, include: The static scroll assembly as described in any one of claims 1 to 14; The moving scroll and the stationary scroll enclose a compression chamber, which is connected to the exhaust channel through the exhaust port.

16. A refrigeration appliance characterized by, include: The static scroll assembly as described in any one of claims 1 to 14; or The compressor as described in claim 15.

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