Static disc assembly, compressor and refrigeration equipment

Abstract

The utility model provides a static disc assembly, a compressor and refrigeration equipment. The static disc assembly is used for the compressor and comprises a static disc, the static disc is provided with a mounting part, a groove and an exhaust port, the groove is located between the mounting part and the exhaust port, the exhaust port penetrates through the groove bottom wall of the groove, and the mounting part is arranged around a groove opening of the groove; the pressing plate group is arranged on the mounting part, and a back pressure cavity is defined by the pressing plate group and the mounting part; the valve plate is located in the groove, a first part of the valve plate is connected with the groove wall of the groove, and a second part of the valve plate can move relative to the static disc so as to be switched between a first position and a second position; when the second part of the valve plate is located at the first position, the valve plate opens the exhaust port; and when the second part of the valve plate is located at the second position, the valve plate closes the exhaust port. The exhaust loss of the compressor can be reduced, the compression efficiency of the compressor can be improved, and the power consumption of the compressor can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and more specifically, to a stationary disk assembly, a compressor, and a refrigeration device. Background Art

[0002] A scroll compressor includes a stationary disk, a pressure plate group, and a valve plate. The stationary disk is provided with an exhaust port. The valve plate covers the exhaust port, and the pressure plate group is installed on the stationary disk. The volume of the area enclosed by the exhaust port and the valve plate is the clearance volume.

[0003] In the related art, the mounting surface for mounting the pressure plate group and the mounting surface for mounting the valve plate on the stationary disk are located in the same plane. The large clearance volume results in a large exhaust pressure loss of the compressor, affecting the operating efficiency of the compressor. Summary of the Utility Model

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

[0005] To this end, a first aspect of the present application provides a stationary disk assembly.

[0006] A second aspect of the present application provides a compressor.

[0007] A third aspect of the present application provides a refrigeration device.

[0008] In view of this, a first aspect of the present application provides a stationary disk assembly for a compressor, including: a stationary disk provided with a mounting portion, a groove, and an exhaust port. The groove is located between the mounting portion and the exhaust port, and the exhaust port penetrates the bottom wall of the groove. The mounting portion is disposed around the groove opening. A pressure plate group is disposed on the mounting portion, and a back pressure chamber is enclosed by the pressure plate group and the mounting portion. A valve plate is located in the groove. A first portion of the valve plate is connected to the groove wall, and a second portion of the valve plate can move relative to the stationary disk to switch between a first position and a second position. When the second portion of the valve plate is in the first position, the valve plate opens the exhaust port. When the second portion of the valve plate is in the second position, the valve plate closes the exhaust port.

[0009] A stationary disk assembly provided by the present application includes a stationary disk, a pressure plate group, and a valve plate.

[0010] The stationary disk is provided with a mounting portion, a groove, and an exhaust port. The exhaust port penetrates the bottom wall of the groove. The mounting portion is disposed around the groove opening. The mounting portion is used to cooperate with the pressure plate group to mount and fix the pressure plate group. The valve plate is located in the groove, and the groove has the function of accommodating the valve plate.

[0011] The installation part is arranged around the notch of the groove, that is, the installation part is located on the circumferential side of the notch of the groove. That is to say, when the pressing plate group is assembled with the installation part, the distance from the pressing plate group to the exhaust port is greater than the distance from the valve plate to the exhaust port. That is to say, along the notch of the groove to the bottom wall of the groove, the pressing plate group is located above the valve plate. In other words, there is a height difference between the installation position of the valve plate and the installation position of the pressing plate group.

[0012] In this application, the positions of the installation part, the groove, the valve plate and the exhaust port are reasonably set. The valve plate is placed in the groove, that is, the installation position of the valve plate is sunken compared with the installation part. The stationary disk has scroll teeth, and the exhaust port is located between the scroll teeth and the valve plate. This setting optimizes the matching structure of the exhaust port and the valve plate without changing the external dimensions of the stationary disk and the installation position of the pressing plate group, reduces the size of the exhaust port in the direction from the installation part to the valve plate, and can achieve the purpose of reducing the clearance volume enclosed by the valve plate and the exhaust port. In this way, the exhaust loss of the compressor can be reduced, the compression efficiency of the compressor can be improved, and the power consumption of the compressor can be reduced.

[0013] It can be understood that when the compressor is in the under-compression working condition, too large a clearance volume will reduce the compression efficiency of the compressor and increase the power consumption, resulting in a high exhaust temperature. At the same time, when the compressor shuts down, the high-pressure gas in this part will push the moving disk of the compressor to rotate in the reverse direction. In this way, the shutdown speed of the compressor will be affected. Therefore, by reasonably setting the structure of the stationary disk assembly in this application, it also has the effect of improving the shutdown speed of the compressor.

[0014] Furthermore, the valve plate has a first part and a second part. The first part of the valve plate is connected to the groove wall of the groove, and the second part of the valve plate can switch between a first position for opening the exhaust port and a second position for closing the exhaust port.

[0015] Specifically, the compressor further includes a moving disk. The stationary disk is used in cooperation with the moving disk in the compressor. When the moving disk rotates, the moving disk and the stationary disk can compress the refrigerant entering between them, so that the refrigerant is compressed into a high-temperature and high-pressure state. The high-pressure refrigerant can be discharged through the exhaust port on the stationary disk. The valve plate is an elastic part, and the second part of the valve plate can switch between the first position and the second position under the action of air pressure. When the air pressure between the moving disk and the stationary disk is relatively high, the high-pressure refrigerant pushes the valve plate, so that the second part of the valve plate moves to the first position to open the exhaust port. After the air pressure between the moving disk and the stationary disk decreases, the second part of the valve plate can reset to the second position under the action of elastic force, thereby closing the exhaust port. At this time, the valve plate can prevent the high-pressure gas from flowing back between the moving disk and the stationary disk.

[0016] It can be seen from this that the groove, as the installation carrier of the valve plate, has the function of installing and fixing the valve plate, can ensure the matching dimensions between the second part of the valve plate and the exhaust port, and enables the second part of the valve plate to effectively open or close the exhaust port.

[0017] Further, a back pressure chamber is defined by the pressing plate group and the mounting portion. The back pressure chamber is a medium pressure chamber with a certain pressure. The pressing plate group is configured to push the moving disk and the static disk to be pressed tightly, ensuring that the gas in the compression chamber can be effectively compressed and guaranteeing the effective mating dimensions of the moving disk and the static disk.

[0018] According to the static disk assembly described above in this application, the following additional technical features may also be provided:

[0019] In some embodiments, optionally, the static disk assembly further includes a limiting plate. At least a part of the limiting plate is located in the groove, and the limiting plate is used to limit the valve plate. When the second part of the valve plate is in the first position, the second part of the valve plate abuts against the limiting plate.

[0020] In this embodiment, the structure of the static disk assembly is further defined.

[0021] The static disk assembly further includes a limiting plate, and at least a part of the limiting plate is located in the groove. That is, a part of the limiting plate is located in the groove, or the entire limiting plate is located in the groove. It can be understood that in order to accommodate and install the limiting plate, it is necessary to further increase the groove depth of the groove to meet the usage requirements of accommodating the limiting plate. In this way, the dimension of the exhaust port in the direction from the mounting portion to the valve plate will be further reduced, and further, the clearance volume defined by the valve plate and the exhaust port will be reduced, which is beneficial to reducing the exhaust loss of the compressor, improving the compression efficiency of the compressor and reducing the power consumption of the compressor.

[0022] Further, by providing the limiting plate, the displacement of the second part of the valve plate is restricted by the limiting plate. Specifically, when the second part of the valve plate is in the first position, the second part of the valve plate abuts against the limiting plate, and the limiting plate can limit the maximum opening angle of the valve plate. That is, when the high-pressure refrigerant is discharged through the exhaust port on the static disk, the limiting plate can limit the second part of the valve plate to the first position, and the second part of the valve plate will not continue to bend away from the exhaust port. That is to say, the limiting plate can prevent the situation that the valve plate cannot be reset due to excessive bending, improve the stability of the valve plate closing the exhaust port, and prevent the valve plate from failing.

[0023] In some embodiments, optionally, the end face of the limiting plate opposite to the second part of the valve plate is an arc surface, and the distance from the arc surface to the valve plate gradually increases along the first part of the valve plate to the second part of the valve plate.

[0024] In this embodiment, the structure of the limiting plate is further defined.

[0025] A part of the outer surface of the limiting plate is an arc surface, and the arc surface is opposite to the second part of the valve plate.

[0026] From the first part to the second part of the valve plate, the distance from the arc surface to the valve plate gradually increases. Specifically, from the first part to the second part of the valve plate, the distance from the arc surface to the end face of the valve plate facing the limiting plate gradually increases. That is to say, the extension trend of the arc surface is defined.

[0027] The space between the arc surface and the bottom wall of the groove provides a clearance space for the second part of the valve plate to switch between the first position and the second position, and provides a clearance space for the displacement of the second part of the valve plate, so that the valve plate can effectively open or close the exhaust port.

[0028] In addition, the structural setting of the arc surface can adapt to the deformation trend of the second part of the valve plate, can ensure the opening angle of the second part of the valve plate, and can meet the use requirements of the compressor.

[0029] In some embodiments, optionally, a part of the limiting plate is arranged in fit with the first part of the valve plate; the static disc assembly further includes a fastener for connecting the limiting plate, the first part of the valve plate and the static disc, and at least a part of the fastener is located in the groove.

[0030] In this embodiment, the structure of the static disc assembly is further defined.

[0031] The static disc assembly further includes a fastener for connecting the limiting plate, the first part of the valve plate and the static disc, which has the function of assembling the limiting plate and the valve plate on the static disc.

[0032] At least a part of the fastener is located in the groove. In order to accommodate the fastener, the groove needs to provide enough space. For example, it is necessary to further increase the groove depth to meet the use requirements of accommodating the limiting plate and the fastener. In this way, the size of the exhaust port in the direction from the installation part to the valve plate will be further reduced, and further the clearance volume enclosed by the valve plate and the exhaust port will be reduced, which is beneficial to reducing the exhaust loss of the compressor, improving the compression efficiency of the compressor and reducing the power consumption of the compressor.

[0033] Optionally, the fastener includes bolts, screws or rivets, etc., which are not listed one by one here.

[0034] In the present application, the part of the limiting plate opposite to the first part of the valve plate is arranged in fit with the valve plate. That is to say, the limiting plate not only has the function of limiting the second part of the valve plate, but also has the function of pressing the first part of the valve plate. It can also be said that the fastener presses the first part of the valve plate through the limiting plate. Compared with the fastener directly connecting the valve plate, this setting can increase the contact area and contact angle with the valve plate, which is beneficial to improving the effectiveness and reliability of assembling the valve plate, can avoid the situation of the valve plate shifting, provides a reliable structural support for ensuring the matching dimensions of the second part of the valve plate and the exhaust port, enables the valve plate to effectively open or close the exhaust port, can prevent the valve plate from failing, and can ensure the use performance of the compressor.

[0035] In some embodiments, optionally, the distance from the notch of the groove to the bottom wall of the groove is denoted as h1; the stationary disk is further provided with scroll teeth, the exhaust port is located between the scroll teeth and the groove, and the distance from the notch of the groove to the side of the scroll teeth facing the exhaust port is denoted as h2; wherein, 0.58 ≤ h1 / h2 ≤ 0.72.

[0036] In this embodiment, the structure of the stationary disk is further defined.

[0037] Specifically, the distance from the notch of the groove to the bottom wall of the groove is denoted as h1. The stationary disk is further provided with scroll teeth, the exhaust port is located between the scroll teeth and the groove, and the distance from the notch of the groove to the side of the scroll teeth facing the exhaust port is denoted as h2.

[0038] Without changing the external dimensions of the stationary disk and the installation position of the pressing plate group, the matching structure of the exhaust port and the valve plate is optimized. While reducing the clearance volume enclosed by the valve plate and the exhaust port, the structural strength and stiffness of the stationary disk are taken into account, and the service performance of the compressor can be ensured.

[0039] If h1 / h2 < 0.58, there is a risk of increasing the clearance volume enclosed by the valve plate and the exhaust port, and the exhaust pressure loss of the compressor is relatively large, which will affect the operating efficiency of the compressor at high compression ratios and slow down the shutdown speed of the compressor.

[0040] If h1 / h2 > 0.72, there is a risk of increasing the volume of the groove, the hollowed-out area of the stationary disk is relatively large, which will reduce the structural strength and stiffness of the stationary disk, resulting in shortening the service life of the stationary disk assembly and reducing the service performance of the compressor.

[0041] In some embodiments, optionally, the cross-sectional area of the flow passage of the exhaust port is denoted as S1; the stationary disk is sectioned along the direction perpendicular to the valve plate to the exhaust port, and in the section, the area of the region enclosed by the inner contour line of the groove side wall of the groove is denoted as S2; wherein, 0.05 ≤ S1 / S2 ≤ 0.1.

[0042] In this embodiment, the matching structure of the exhaust port and the groove is further defined.

[0043] Specifically, the cross-sectional area of the flow passage of the exhaust port is denoted as S1. The stationary disk is sectioned along the direction perpendicular to the valve plate to the exhaust port, and in the section, the area of the region enclosed by the inner contour line of the groove side wall of the groove is denoted as S2. Among them, when the stationary disk is sectioned along the direction perpendicular to the valve plate to the exhaust port, the area of the region enclosed by the inner contour line of the port wall of the exhaust port is the cross-sectional area of the flow passage of the exhaust port.

[0044] Among them, S1 and S2 satisfy: 0.05 ≤ S1 / S2 ≤ 0.1.

[0045] Without changing the external dimensions of the stationary disk and the installation position of the pressure plate group, the cooperation structure of the exhaust port and the valve plate is optimized. While reducing the clearance volume enclosed by the valve plate and the exhaust port, the structural strength and stiffness of the stationary disk are taken into account, ensuring the performance of the compressor.

[0046] If S1 / S2 < 0.05, there is a risk of increasing the volume of the groove. The hollowed-out area of the stationary disk is relatively large, which will reduce the structural strength and stiffness of the stationary disk, leading to a shortened service life of the stationary disk assembly and a reduction in the performance of the compressor.

[0047] If S1 / S2 > 0.1, there is a risk of increasing the clearance volume enclosed by the valve plate and the exhaust port. The exhaust pressure loss of the compressor is relatively large, which will affect the operating efficiency of the compressor at high compression ratios and slow down the shutdown speed of the compressor.

[0048] In some embodiments, optionally, on the cross-section of the stationary disk assembly, a part of the inner contour line of the groove sidewall is in contact with the outer contour line of the first part of the valve plate; the cross-section of the stationary disk assembly is perpendicular to the direction from the valve plate to the exhaust port.

[0049] In this embodiment, the cooperation structure of the groove and the valve plate is further defined.

[0050] Taking a cross-section of the stationary disk assembly in the direction perpendicular to the direction from the valve plate to the exhaust port, on the cross-section of the stationary disk assembly, a part of the inner contour line of the groove sidewall is in contact with the outer contour line of the first part of the valve plate. That is, a part of the inner contour line of the groove sidewall has the same shape as the outer contour line of the first part of the valve plate. In other words, a part of the groove sidewall has a limiting effect on the first part of the valve plate, making the valve plate not easily move relative to the stationary disk. In this way, it is beneficial to improve the stability and reliability of the valve plate assembly. At the same time, this setting makes the groove not only have the function of accommodating the valve plate but also have the function of limiting the valve plate. That is, it enriches the use function of the groove, can reduce the investment in devices for limiting the valve plate, is beneficial to reducing the material input of the product, and is beneficial to reducing the production cost of the product.

[0051] In some embodiments, optionally, the second part of the valve plate includes a first connecting section and a second connecting section. The first connecting section is connected between the second connecting section and the first part of the valve plate. The second connecting section is used to open and close the exhaust port. The first part of the valve plate is provided with a first connecting portion and a second connecting portion, both of which are used to connect the stationary disk. The first connecting section is located between the first connecting portion and the second connecting portion.

[0052] In this embodiment, the structure of the valve plate is further defined.

[0053] The second part of the valve plate includes a first connecting section and a second connecting section. The first connecting section is connected between the second connecting section and the first part of the valve plate.

[0054] The first part of the valve plate is provided with a first connecting portion and a second connecting portion, and a first connecting section is located between the first connecting portion and the second connecting portion. Both the first connecting portion and the second connecting portion are used to connect the stationary disc. Specifically, both the first connecting portion and the second connecting portion are used to connect with the groove wall of the groove.

[0055] Among them, the first connecting section is located between the first connecting portion and the second connecting portion, that is, the first connecting portion and the second connecting portion are located on opposite sides of the first connecting section. It can be seen from this that the connection positions of the valve plate and the stationary disc are located on opposite sides of the first connecting section. This setting increases the connection area and connection angle between the valve plate and the stationary disc, can limit the second part of the valve plate from multiple directions and angles, can ensure the balance and consistency of the force on the second part of the valve plate, can ensure the matching dimensions between the second part of the valve plate and the exhaust port, so that the second part of the valve plate can effectively switch between the first position and the second position. If the force positions on the second part of the valve plate are not balanced, it is easy to occur that the second part of the valve plate is inclined or some areas are excessively bent. This setting can avoid the situation that the valve plate cannot reset due to excessive bending, can improve the stability of the valve plate to close the exhaust port, and can prevent the situation of valve plate failure.

[0056] It can be understood that the second part of the valve plate includes a first connecting section and a second connecting section. The first connecting section has the function of connecting the second connecting section and the first part of the valve plate, and the second connecting section has the function of opening or closing the exhaust port, that is, when the second part of the valve plate is in the second position, the second connecting section covers the exhaust port.

[0057] Specifically, the outer contour line of the second connecting section is located outside the port wall of the exhaust port to ensure that when the second part of the valve plate is in the second position, the second connecting section can effectively cover the exhaust port and prevent high-pressure gas from flowing back between the second connecting section and the exhaust port to the space between the moving disc and the stationary disc.

[0058] In some embodiments, optionally, the mounting portion includes a mounting surface or a mounting groove.

[0059] In this embodiment, the structure of the mounting portion is further defined.

[0060] Specifically, the mounting portion includes a mounting surface, and the pressure plate group of the compressor is mounted on the mounting surface.

[0061] Specifically, the mounting portion includes a mounting groove, and at least a part of the pressure plate group of the compressor is mounted in the mounting groove. The bottom wall of the mounting groove surrounds the notch of the groove. That is, the mounting groove and the groove enclose a sunken groove structure.

[0062] In some embodiments, optionally, when the mounting portion includes a mounting groove, at least a part of the pressing plate group is located in the mounting groove, and a back pressure chamber is defined by the pressing plate group and the side wall of the mounting groove.

[0063] In this embodiment, the mating structure of the mounting portion and the pressing plate group is further defined.

[0064] When the mounting portion includes a mounting groove, at least a part of the pressing plate group is located in the mounting groove.

[0065] The back pressure chamber is defined by the pressing plate group and the side wall of the mounting groove. The back pressure chamber is a medium pressure chamber with a certain pressure. The pressing plate group has the function of pushing the moving disk and the static disk to be pressed tightly, ensuring that the gas in the compression chamber can be effectively compressed and guaranteeing the effective mating dimensions of the moving disk and the static disk.

[0066] A second aspect of the present utility model provides a compressor, comprising: the static disk assembly in the first aspect.

[0067] Since the compressor provided by the present utility model includes the static disk assembly as in the first aspect, it has all the beneficial effects of the above-mentioned static disk assembly, which will not be elaborated one by one here.

[0068] A third aspect of the present utility model provides a refrigeration device, comprising: the compressor in the second aspect.

[0069] Since the refrigeration device provided by the present utility model includes the compressor as in the second aspect, it has all the beneficial effects of the above-mentioned compressor, which will not be elaborated one by one here.

[0070] The additional aspects and advantages of the present application will become apparent in the following description section or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0072] Figure 1 shows a partial structural schematic diagram of the static disk assembly of an embodiment of the present application;

[0073] Figure 2 shows a structural schematic diagram of the static disk assembly of an embodiment of the present application;

[0074] Figure 3 shows an exploded view of the static disk assembly of an embodiment of the present application;

[0075] Figure 4 shows a partial structural schematic diagram of the compressor of an embodiment of the present application.

[0076] Among them, Figures 1 to 4The correspondence between the reference numerals and the component names in the figures is as follows:

[0077] 10 stationary disk assembly, 100 stationary disk, 110 mounting portion, 110a mounting groove, 112 groove side wall of the mounting groove, 120 recess, 122 bottom wall of the recess, 124 groove side wall of the recess, 126 notch of the recess, 130 exhaust port, 140 scroll tooth, 200 valve plate, 210 first part of the valve plate, 212 first connecting portion, 214 second connecting portion, 220 second part of the valve plate, 222 first connecting section, 224 second connecting section, 300 limiting plate, 310 arc surface, 400 fastener, 500 compression chamber, 600 back pressure chamber, 700 pressing plate group, 710 floating plate, 720 back pressing plate, 730 gasket, 80 compressor, 800 main housing, 900 suction pipe, 1000 crankshaft, 1100 main balance weight, 1200 motor stator, 1300 motor rotor, 1400 lower support ring, 1500 mounting base plate, 1600 lower housing, 1700 auxiliary frame, 1800 exhaust pipe, 1900 main frame, 2000 throttle member, 2100 cross slide ring, 2200 moving disk, 2300 upper housing. Detailed implementation manners

[0078] In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0079] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0080] The following refers to Figures 1 to 4 A stationary disk assembly 10, a compressor 80 and a refrigeration device according to some embodiments of the present application.

[0081] As Figure 1 , Figure 2 and Figure 3 shown, a stationary disk assembly 10 according to some embodiments of the present application includes a stationary disk 100, a pressing plate group 700 and a valve plate 200. The stationary disk assembly 10 is used for the compressor 80.

[0082] The stationary disk 100 is provided with a mounting portion 110, a recess 120 and an exhaust port 130.

[0083] The recess 120 is located between the mounting portion 110 and the exhaust port 130.

[0084] The exhaust port 130 penetrates through the bottom wall 122 of the recess.

[0085] The installation part 110 is arranged around the notch 126 of the groove.

[0086] The pressing plate group 700 is arranged on the installation part 110.

[0087] The pressing plate group 700 and the installation part 110 enclose a back pressure cavity 600.

[0088] The valve plate 200 is located in the groove 120.

[0089] The first part 210 of the valve plate is connected to the groove wall of the groove 120.

[0090] The second part 220 of the valve plate can move relative to the static disc 100 to switch between a first position and a second position.

[0091] When the second part 220 of the valve plate is in the first position, the valve plate 200 opens the exhaust port 130.

[0092] When the second part 220 of the valve plate is in the second position, the valve plate 200 closes the exhaust port 130.

[0093] A static disc assembly 10 provided by the present application includes a static disc 100, a pressing plate group 700 and a valve plate 200.

[0094] The static disc 100 is provided with an installation part 110, a groove 120 and an exhaust port 130. The exhaust port 130 penetrates through the bottom wall 122 of the groove. The installation part 110 is arranged around the notch 126 of the groove. The installation part 110 is used to cooperate with the pressing plate group 700 to install and fix the pressing plate group 700. The valve plate 200 is located in the groove 120, and the groove 120 has the function of accommodating the valve plate 200.

[0095] The installation part 110 is arranged around the notch 126 of the groove, that is, the installation part 110 is located on the periphery of the notch 126 of the groove. That is to say, when the pressing plate group 700 is assembled with the installation part 110, the distance from the pressing plate group 700 to the exhaust port 130 is greater than the distance from the valve plate 200 to the exhaust port 130. That is to say, along the notch 126 of the groove to the bottom wall 122 of the groove, the pressing plate group 700 is located above the valve plate 200. In other words, there is a height difference between the installation position of the valve plate 200 and the installation position of the pressing plate group 700.

[0096] The present application reasonably arranges the positions of the mounting part 110, the groove 120, the valve plate 200, and the exhaust port 130. The valve plate 200 is placed in the groove 120, that is, the mounting position of the valve plate 200 is sunken compared to the mounting part 110. The stationary disk 100 has scroll teeth 140, and the exhaust port 130 is located between the scroll teeth 140 and the valve plate 200. This arrangement optimizes the cooperation structure between the exhaust port 130 and the valve plate 200 without changing the external dimensions of the stationary disk 100 and without changing the mounting position of the pressure plate group 700, reduces the size of the exhaust port 130 in the direction from the mounting part 110 to the valve plate 200, and can achieve the purpose of reducing the clearance volume enclosed by the valve plate 200 and the exhaust port 130. In this way, the exhaust loss of the compressor 80 can be reduced, the compression efficiency of the compressor 80 can be improved, and the power consumption of the compressor 80 can be reduced.

[0097] It can be understood that when the compressor 80 is in an under-compression condition, an excessive clearance volume will reduce the compression efficiency of the compressor 80 and increase the power consumption, resulting in a high exhaust temperature. At the same time, when the compressor 80 shuts down, the high-pressure gas in this part will push the moving disk 2200 of the compressor 80 to rotate in the reverse direction. In this way, the shutdown speed of the compressor 80 will be affected. Therefore, by reasonably arranging the structure of the stationary disk assembly 10, the present application also has the effect of improving the shutdown speed of the compressor 80.

[0098] Further, the valve plate 200 has a first part and a second part. The first part 210 of the valve plate is connected to the groove wall of the groove 120, and the second part 220 of the valve plate can switch between a first position for opening the exhaust port 130 and a second position for closing the exhaust port 130.

[0099] Specifically, the compressor 80 further includes a moving disk 2200. The stationary disk 100 is used in cooperation with the moving disk 2200 in the compressor 80. When the moving disk 2200 rotates, the moving disk 2200 and the stationary disk 100 can compress the refrigerant entering between them, so that the refrigerant is compressed into a high-temperature and high-pressure state. The high-pressure refrigerant can be discharged through the exhaust port 130 on the stationary disk 100. The valve plate 200 is an elastic member, and the second part 220 of the valve plate can switch between the first position and the second position under the action of air pressure. When the air pressure between the moving disk 2200 and the stationary disk 100 is relatively high, the high-pressure refrigerant pushes the valve plate 200, so that the second part 220 of the valve plate moves to the first position to open the exhaust port 130. After the air pressure between the moving disk 2200 and the stationary disk 100 decreases, the second part 220 of the valve plate can reset to the second position under the action of elastic force, thereby closing the exhaust port 130. At this time, the valve plate 200 can prevent the high-pressure gas from flowing back between the moving disk 2200 and the stationary disk 100.

[0100] It can be seen therefrom that the groove 120, as the installation carrier of the valve plate 200, functions to install and fix the valve plate 200, and can ensure the matching dimensions between the second part 220 of the valve plate and the exhaust port 130, enabling the second part 220 of the valve plate to effectively open or close the exhaust port 130.

[0101] Furthermore, the pressure plate group 700 and the installation part 110 enclose a back pressure chamber 600. The back pressure chamber 600 is a medium pressure chamber with a certain pressure. The pressure plate group 700 functions to push the moving disk 2200 against the static disk 100 tightly, ensuring that the gas in the compression chamber 500 can be effectively compressed and guaranteeing the effective matching dimensions between the moving disk 2200 and the static disk 100.

[0102] In some embodiments, optionally, as Figure 1 and Figure 3 shown, the static disk assembly 10 further includes a limiting plate 300.

[0103] At least a part of the limiting plate 300 is located in the groove 120.

[0104] The limiting plate 300 is used to limit the valve plate 200.

[0105] When the second part 220 of the valve plate is in the first position, the second part 220 of the valve plate abuts against the limiting plate 300.

[0106] In this embodiment, the structure of the static disk assembly 10 is further defined.

[0107] The static disk assembly 10 further includes a limiting plate 300, and at least a part of the limiting plate 300 is located in the groove 120. That is, a part of the limiting plate 300 is located in the groove 120, or the limiting plate 300 is entirely located in the groove 120. It can be understood that in order to accommodate and install the limiting plate 300, it is necessary to further increase the groove depth of the groove 120 to meet the usage requirements of accommodating the limiting plate 300. In this way, the dimension of the exhaust port 130 in the direction from the installation part 110 to the valve plate 200 will be further reduced, and then the clearance volume enclosed by the valve plate 200 and the exhaust port 130 will be further reduced, which is beneficial to reducing the exhaust loss of the compressor 80 and can improve the compression efficiency of the compressor 80 and reduce the power consumption of the compressor 80.

[0108] Further, by providing the limiting plate 300, the displacement of the second portion 220 of the valve plate is restricted by the limiting plate 300. Specifically, when the second portion 220 of the valve plate is in the first position, the second portion 220 of the valve plate abuts against the limiting plate 300, and the limiting plate 300 can limit the maximum opening angle of the valve plate 200. That is, when the high-pressure refrigerant is discharged through the exhaust port 130 on the stationary disk 100, the limiting plate 300 can position the second portion 220 of the valve plate at the first position, and the second portion 220 of the valve plate will not continue to bend away from the exhaust port 130. That is to say, the limiting plate 300 can prevent the valve plate 200 from failing to reset due to excessive bending, can improve the stability of the valve plate 200 in closing the exhaust port 130, and can prevent the valve plate 200 from failing.

[0109] In some embodiments, optionally, as Figure 1 shown, the end face of the limiting plate 300 opposite to the second portion 220 of the valve plate is an arc surface 310.

[0110] Along the first portion 210 of the valve plate to the second portion 220 of the valve plate, the distance from the arc surface 310 to the valve plate 200 gradually increases.

[0111] In this embodiment, the structure of the limiting plate 300 is further defined.

[0112] A part of the outer surface of the limiting plate 300 is an arc surface 310, and the arc surface 310 is disposed opposite to the second portion 220 of the valve plate.

[0113] Along the first portion 210 of the valve plate to the second portion 220 of the valve plate, the distance from the arc surface 310 to the valve plate 200 gradually increases. Specifically, along the first portion 210 of the valve plate to the second portion 220 of the valve plate, the distance from the arc surface 310 to the end face of the valve plate 200 facing the limiting plate 300 gradually increases. That is to say, the extension trend of the arc surface 310 is defined.

[0114] The space between the arc surface 310 and the bottom wall 122 of the groove provides a clearance space for the second portion 220 of the valve plate to switch between the first position and the second position, and provides a clearance space for the displacement of the second portion 220 of the valve plate, so that the valve plate 200 can effectively open or close the exhaust port 130.

[0115] In addition, the structural setting of the arc surface 310 can adapt to the deformation trend of the second portion 220 of the valve plate, can ensure the opening angle of the second portion 220 of the valve plate, and can meet the use requirements of the compressor 80.

[0116] In some embodiments, optionally, as Figure 1 shown, a part of the limiting plate 300 is disposed in fit with the first portion 210 of the valve plate.

[0117] The stationary disk assembly 10 further includes a fastener 400.

[0118] The fastener 400 is used to connect the limiting plate 300, the first part 210 of the valve plate, and the stationary disk 100.

[0119] At least a part of the fastener 400 is located in the groove 120.

[0120] In this embodiment, the structure of the stationary disk assembly 10 is further defined.

[0121] The stationary disk assembly 10 further includes a fastener 400. The fastener 400 is used to connect the limiting plate 300, the first part 210 of the valve plate, and the stationary disk 100, and has the function of assembling the limiting plate 300 and the valve plate 200 on the stationary disk 100.

[0122] At least a part of the fastener 400 is located in the groove 120. In order to accommodate the fastener 400, the groove 120 needs to provide sufficient space. For example, it is necessary to further increase the groove depth of the groove 120 to meet the usage requirements of accommodating the limiting plate 300 and the fastener 400. In this way, the size of the exhaust port 130 in the direction from the installation part 110 to the valve plate 200 will be further reduced, and further, the clearance volume enclosed by the valve plate 200 and the exhaust port 130 will be further reduced, which is beneficial to reducing the exhaust loss of the compressor 80 and can improve the compression efficiency of the compressor 80 and reduce the power consumption of the compressor 80.

[0123] Optionally, the fastener 400 includes bolts, screws, rivets, etc., which are not listed one by one here.

[0124] In this application, the part of the limiting plate 300 opposite to the first part 210 of the valve plate is arranged in contact with the valve plate 200. That is to say, the limiting plate 300 not only has the function of limiting the second part 220 of the valve plate, but also has the function of pressing the first part 210 of the valve plate. It can also be said that the fastener 400 presses the first part 210 of the valve plate through the limiting plate 300. Compared with the fastener directly connecting the valve plate, this setting can increase the contact area and contact angle with the valve plate 200, which is beneficial to improving the effectiveness and reliability of assembling the valve plate 200, can avoid the situation of the valve plate 200 shifting, provides a reliable structural support for ensuring the matching dimension between the second part 220 of the valve plate and the exhaust port 130, enables the valve plate 200 to effectively open or close the exhaust port 130, can prevent the valve plate 200 from failing, and can ensure the service performance of the compressor 80.

[0125] In some embodiments, optionally, as Figure 1 shown, the distance from the notch 126 of the groove to the bottom wall 122 of the groove is denoted as h1.

[0126] The stationary disk 100 is further provided with scroll teeth 140.

[0127] The exhaust port 130 is located between the scroll teeth 140 and the groove 120.

[0128] The distance from the notch 126 of the groove to the side of the scroll tooth 140 facing the exhaust port 130 is denoted as h2.

[0129] Among them, 0.58 ≤ h1 / h2 ≤ 0.72.

[0130] In this embodiment, the structure of the stationary disk 100 is further defined.

[0131] Specifically, the distance from the notch 126 of the groove to the bottom wall 122 of the groove is denoted as h1. The stationary disk 100 is further provided with scroll teeth 140. The exhaust port 130 is located between the scroll teeth 140 and the groove 120. The distance from the notch 126 of the groove to the side of the scroll tooth 140 facing the exhaust port 130 is denoted as h2.

[0132] Without changing the external dimensions of the stationary disk 100 and without changing the installation position of the pressing plate group 700, the matching structure of the exhaust port 130 and the valve plate 200 is optimized. While reducing the clearance volume enclosed by the valve plate 200 and the exhaust port 130, the structural strength and stiffness of the stationary disk 100 are taken into account, and the service performance of the compressor 80 can be guaranteed.

[0133] If h1 / h2 < 0.58, then there is a risk of increasing the clearance volume enclosed by the valve plate 200 and the exhaust port 130. The exhaust pressure loss of the compressor 80 is relatively large, which will affect the operating efficiency of the compressor 80 at high compression ratios and will slow down the shutdown speed of the compressor 80.

[0134] If h1 / h2 > 0.72, then there is a risk of increasing the volume of the groove 120. The hollowed-out area of the stationary disk 100 is relatively large, which will reduce the structural strength and stiffness of the stationary disk 100, resulting in shortening the service life of the stationary disk assembly 10 and reducing the service performance of the compressor 80.

[0135] Optionally, h1 / h2 = 0.6, h1 / h2 = 0.62, h1 / h2 = 0.64, h1 / h2 = 0.65, h1 / h2 = 0.66, h1 / h2 = 0.67, h1 / h2 = 0.69, and h1 / h2 = 0.7, etc., which are not listed one by one here.

[0136] In some embodiments, optionally, the cross-sectional area of the exhaust port 130 is denoted as S1.

[0137] The stationary disk 100 is sectioned along the direction perpendicular to the valve plate 200 to the exhaust port 130. In the section, the area of the region enclosed by the inner contour line of the groove side wall 124 of the groove is denoted as S2; among them, 0.05 ≤ S1 / S2 ≤ 0.1.

[0138] In this embodiment, the matching structure of the exhaust port 130 and the groove 120 is further defined.

[0139] Specifically, the cross-sectional area of the flow passage of the exhaust port 130 is denoted as S1. The static disk 100 is sectioned in a direction perpendicular to the valve plate 200 and the exhaust port 130. In the section, the area of the region enclosed by the inner contour line of the groove side wall 124 of the groove is denoted as S2. Among them, when the static disk 100 is sectioned in a direction perpendicular to the valve plate 200 and the exhaust port 130, the area of the region enclosed by the inner contour line of the port wall of the exhaust port 130 is the cross-sectional area of the flow passage of the exhaust port 130.

[0140] Among them, S1 and S2 satisfy: 0.05 ≤ S1 / S2 ≤ 0.1.

[0141] Without changing the external dimensions of the static disk 100 and without changing the installation position of the pressing plate group 700, the matching structure of the exhaust port 130 and the valve plate 200 is optimized. While reducing the clearance volume enclosed by the valve plate 200 and the exhaust port 130, the structural strength and stiffness of the static disk 100 are taken into account, and the service performance of the compressor 80 can be guaranteed.

[0142] If S1 / S2 < 0.05, then there is a risk of increasing the volume of the groove 120. The area of the region where the static disk 100 is hollowed out is relatively large, which will reduce the structural strength and stiffness of the static disk 100, resulting in shortening the service life of the static disk assembly 10 and reducing the service performance of the compressor 80.

[0143] If S1 / S2 > 0.1, then there is a risk of increasing the clearance volume enclosed by the valve plate 200 and the exhaust port 130. The exhaust pressure loss of the compressor 80 is relatively large, which will affect the operating efficiency of the compressor 80 at high compression ratios and will slow down the shutdown speed of the compressor 80.

[0144] Optionally, S1 / S2 = 0.06, S1 / S2 = 0.07, S1 / S2 = 0.08, and S1 / S2 = 0.09, etc., which are not listed one by one here.

[0145] In some embodiments, optionally, on the cross-section of the static disk assembly 10, a part of the inner contour line of the groove side wall 124 is in contact with the outer contour line of the first part 210 of the valve plate.

[0146] The cross-section of the static disk assembly 10 is perpendicular to the direction from the valve plate 200 to the exhaust port 130.

[0147] In this embodiment, the matching structure of the groove 120 and the valve plate 200 is further defined.

[0148] The static disk assembly 10 is sectioned along a direction perpendicular to the valve plate 200 and the exhaust port 130. On the cross-section of the static disk assembly 10, a part of the inner contour line of the groove side wall 124 contacts the outer contour line of the first part 210 of the valve plate. Optionally, a part of the inner contour line of the groove side wall 124 has the same shape as the outer contour line of the first part 210 of the valve plate. That is to say, the groove side wall 124 of the groove has a limiting effect on the first part 210 of the valve plate, making it difficult for the valve plate 200 to move relative to the static disk 100. In this way, it is beneficial to improve the stability and reliability of the assembly of the valve plate 200. At the same time, this setting enables the groove 120 not only to accommodate the valve plate 200 but also to limit the valve plate 200, that is, it enriches the use function of the groove 120, can reduce the device investment for limiting the valve plate 200, is beneficial to reducing the material input of the product, and is beneficial to reducing the production cost of the product.

[0149] In this embodiment, on the cross-section of the static disk assembly 10, the outer contour line of the first part 210 of the valve plate includes an arc, and a part of the inner contour line of the groove side wall 124 of the groove includes an arc.

[0150] In some other embodiments, on the cross-section of the static disk assembly 10, the outer contour line of the first part 210 of the valve plate includes a broken line, and a part of the inner contour line of the groove side wall 124 of the groove includes a broken line.

[0151] In some other embodiments, on the cross-section of the static disk assembly 10, the outer contour line of the first part 210 of the valve plate includes an arc and a broken line, and a part of the inner contour line of the groove side wall 124 of the groove includes an arc and a broken line.

[0152] In some embodiments, optionally, as Figure 1 shown, the second part 220 of the valve plate includes a first connecting section 222 and a second connecting section 224.

[0153] The first connecting section 222 is connected between the second connecting section 224 and the first part 210 of the valve plate.

[0154] The second connecting section 224 is used to open and close the exhaust port 130.

[0155] The first part 210 of the valve plate is provided with a first connecting portion 212 and a second connecting portion 214.

[0156] Both the first connecting portion 212 and the second connecting portion 214 are used to connect the static disk 100.

[0157] The first connecting section 222 is located between the first connecting portion 212 and the second connecting portion 214.

[0158] In this embodiment, the structure of the valve plate 200 is further defined.

[0159] The second part 220 of the valve plate includes a first connecting section 222 and a second connecting section 224, and the first connecting section 222 is connected between the second connecting section 224 and the first part 210 of the valve plate.

[0160] The first part 210 of the valve plate is provided with a first connecting portion 212 and a second connecting portion 214, and the first connecting section 222 is located between the first connecting portion 212 and the second connecting portion 214. Both the first connecting portion 212 and the second connecting portion 214 are used to connect to the static disc 100. Specifically, both the first connecting portion 212 and the second connecting portion 214 are used to connect to the wall of the groove 120.

[0161] Among them, the first connecting section 222 is located between the first connecting portion 212 and the second connecting portion 214, that is, the first connecting portion 212 and the second connecting portion 214 are located on opposite sides of the first connecting section 222. It can be seen from this that the connection positions between the valve plate 200 and the static disc 100 are located on opposite sides of the first connecting section 222. This setting increases the connection area and connection angle between the valve plate 200 and the static disc 100, can limit the second part 220 of the valve plate from multiple directions and angles, can ensure the balance and consistency of the force on the second part 220 of the valve plate, can ensure the matching dimensions between the second part 220 of the valve plate and the exhaust port 130, so that the second part 220 of the valve plate can effectively switch between the first position and the second position. If the force positions on the second part 220 of the valve plate are not balanced, it is easy to occur that the second part 220 of the valve plate is inclined or some areas are excessively bent. This setting can avoid the situation that the valve plate 200 cannot be reset due to excessive bending, can improve the stability of the valve plate 200 to close the exhaust port 130, and can prevent the situation that the valve plate 200 fails.

[0162] It can be understood that the second part 220 of the valve plate includes a first connecting section 222 and a second connecting section 224. The first connecting section 222 has the function of connecting the second connecting section 224 and the first part 210 of the valve plate, and the second connecting section 224 has the function of opening or closing the exhaust port 130, that is, when the second part 220 of the valve plate is in the second position, the second connecting section 224 covers the exhaust port 130.

[0163] Specifically, the outer contour line of the second connecting section 224 is located outside the wall of the exhaust port 130 to ensure that when the second part 220 of the valve plate is in the second position, the second connecting section 224 can effectively cover the exhaust port 130 and prevent high-pressure gas from flowing back between the second connecting section 224 and the exhaust port 130 to the space between the moving disc 2200 and the static disc 100.

[0164] Optionally, a cross-section of the valve plate 200 is taken along a direction perpendicular to the thickness direction of the valve plate 200. In the cross-section, the cross-sectional shape of the second connection section 224 is circular, the cross-sectional shape of the first connection section 222 is rectangular, the diameter corresponding to the first connection section 222 is greater than the width corresponding to the first connection section 222, and the width of the first connection section 222 refers to the dimension of the first connection section 222 in a direction perpendicular to the direction from the first connection section 222 to the second connection section 224.

[0165] In some embodiments, optionally, the mounting portion 110 includes a mounting surface or a mounting groove 110a.

[0166] In this embodiment, the structure of the mounting portion 110 is further defined.

[0167] Specifically, the mounting portion 110 includes a mounting surface, and the pressure plate group 700 is mounted on the mounting surface.

[0168] Specifically, the mounting portion 110 includes a mounting groove 110a, and at least a part of the pressure plate group 700 is mounted in the mounting groove 110a. The bottom wall of the mounting groove 110a is arranged around the notch 126 of the groove. That is, the mounting groove 110a and the groove 120 enclose a sunk groove structure.

[0169] In some embodiments, optionally, as Figure 1 shown, when the mounting portion 110 includes a mounting groove 110a, at least a part of the pressure plate group 700 is located in the mounting groove 110a.

[0170] The pressure plate group 700 and the side wall 112 of the mounting groove enclose a back pressure chamber 600.

[0171] In this embodiment, the matching structure between the mounting portion 110 and the pressure plate group 700 is further defined.

[0172] When the mounting portion 110 includes a mounting groove 110a, at least a part of the pressure plate group 700 is located in the mounting groove 110a.

[0173] The pressure plate group 700 and the side wall 112 of the mounting groove enclose a back pressure chamber 600. The back pressure chamber 600 is a medium-pressure chamber with a certain pressure. The pressure plate group 700 has the function of pushing the moving disk 2200 to be pressed against the static disk 100, ensuring that the gas in the compression chamber 500 can be effectively compressed, and ensuring the effective matching dimension between the moving disk 2200 and the static disk 100.

[0174] As Figure 4 shown, a compressor 80 according to some other embodiments of the present application includes: the static disk assembly 10 of any of the above embodiments.

[0175] The compressor 80 provided by the present application includes the stationary disk assembly 10 of any of the above embodiments, and thus has all the beneficial effects of the stationary disk assembly 10, which will not be elaborated one by one here.

[0176] A refrigeration device according to some further embodiments of the present application includes: the compressor 80 of the above embodiment.

[0177] The refrigeration device provided by the present application includes the compressor 80 of the above embodiment, and thus has all the beneficial effects of the compressor 80, which will not be elaborated one by one here.

[0178] Optionally, the compressor 80 includes a scroll compressor 80.

[0179] The compressor 80 includes a stationary disk assembly 10, and the stationary disk assembly 10 includes a stationary disk 100, a compression plate, and a valve plate 200. An exhaust port 130 is formed on the stationary disk 100. The stationary disk 100 further has a mounting portion 110 and a groove 120, and the groove 120 is located between the mounting portion 110 and the exhaust port 130. The exhaust port 130 penetrates through the bottom wall 122 of the groove.

[0180] A valve plate 200 is disposed in the groove 120, and the valve plate 200 covers the exhaust port 130. At least a part of the valve plate 200 is strip-shaped. A first part 210 of the valve plate is connected to the groove wall of the groove 120 of the stationary disk 100. A limiting plate 300 is further disposed above the valve plate 200, and the limiting plate 300 has a cambered surface 310, and the cambered surface 310 is disposed opposite to a second part 220 of the valve plate.

[0181] When the exhaust port 130 exhausts, the second part 220 of the valve plate swings up and down between the bottom wall 122 of the groove and the cambered surface 310 of the limiting plate 300. The present application optimizes the structure of the stationary disk assembly 10, minimizes the clearance volume to the greatest extent, and thus improves the energy efficiency of the compressor 80.

[0182] When a cross-section of the groove 120 is taken along a direction perpendicular to the valve plate 200 and the exhaust port 130, the shape of the region enclosed by the inner contour line of the groove side wall 124 of the groove includes a square or a circle. The exhaust port 130 penetrates through the bottom wall 122 of the groove.

[0183] The first part 210 of the valve plate is connected to the groove wall of the groove 120, and the second part 220 of the valve plate is used to open and close the exhaust port 130.

[0184] The shape of the first part 210 of the valve plate matches the shape of the groove side wall 124 of the groove.

[0185] The outer edge of the second part 220 of the valve plate is located outside the port wall of the exhaust port 130, and the valve plate 200 can effectively cover the exhaust port 130.

[0186] When the compressor 80 operates, the gas in the exhaust port 130 is discharged, and the gas pushes the second part 220 of the valve plate in the groove 120 to move upward. The limiting plate 300 above the valve plate 200 limits the up and down stroke of the second part 220 of the valve plate from above. After the exhaust port 130 stops exhausting, the second part 220 of the valve plate resets to the second position and reseals the exhaust port 130 again.

[0187] The structure of the stationary disk assembly 10 of the present application is reasonably set, so that the installation plane of the valve plate 200 sinks, reducing the volume of the exhaust port 130 under the valve plate 200. The clearance volume can be reduced by 77%, and the energy efficiency of the compressor 80 is increased by 0.6%.

[0188] The positions of the installation part 110, the groove 120, the valve plate 200 and the exhaust port 130 of the present application are reasonably set. The valve plate 200 is placed in the groove 120, that is, the installation position of the valve plate 200 sinks compared with the installation part 110. The stationary disk 100 has scroll teeth 140, and the exhaust port 130 is located between the scroll teeth 140 and the valve plate 200. This setting optimizes the cooperation structure of the exhaust port 130 and the valve plate 200 without changing the external dimensions of the stationary disk 100 and without changing the installation position of the pressure plate group 700, reducing the size of the exhaust port 130 in the direction from the installation part 110 to the valve plate 200, and achieving the purpose of reducing the clearance volume enclosed by the valve plate 200 and the exhaust port 130. In this way, the exhaust loss of the compressor 80 can be reduced, the compression efficiency of the compressor 80 can be improved, and the power consumption of the compressor 80 can be reduced.

[0189] Optionally, the valve plate 200 includes a reed valve.

[0190] Optionally, as Figure 3 shown, the pressure plate group 700 includes a floating plate 710, a back pressure plate 720 and a gasket 730.

[0191] Optionally, as Figure 4 shown, the compressor 80 includes: a main housing 800, a suction pipe 900, a crankshaft 1000, a main balance weight 1100, a motor, a lower support ring 1400, an installation base plate 1500, a lower housing 1600, a secondary frame 1700, an exhaust pipe 1800, a main frame 1900, a throttling member 2000, a cross slide ring 2100, a moving disk 2200 and an upper housing 2300. The motor includes a motor stator 1200 and a motor rotor 1300.

[0192] In this application, the term "a plurality of" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "coupled" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0193] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A static disk assembly for a compressor, characterized in that, Comprising: A stationary disk, the stationary disk is provided with a mounting portion, a groove and an exhaust port, the groove is located between the mounting portion and the exhaust port, the exhaust port penetrates through the bottom wall of the groove, and the mounting portion surrounds the notch of the groove; A pressure plate group, arranged on the mounting portion, and the pressure plate group and the mounting portion enclose a back pressure chamber; A valve plate, located in the groove, a first portion of the valve plate is connected to the groove wall, and a second portion of the valve plate can move relative to the stationary disk to switch between a first position and a second position; When the second portion of the valve plate is in the first position, the valve plate opens the exhaust port; When the second portion of the valve plate is in the second position, the valve plate closes the exhaust port.

2. The stator disk assembly according to claim 1, characterized in that, Further comprising: A limiting plate, at least a part of the limiting plate is located in the groove, the limiting plate is used to limit the valve plate, and when the second portion of the valve plate is in the first position, the second portion of the valve plate abuts against the limiting plate.

3. The stator assembly according to claim 2, wherein, The end face of the limiting plate opposite to the second portion of the valve plate is an arc surface, and along the first portion of the valve plate to the second portion of the valve plate, the distance from the arc surface to the valve plate gradually increases.

4. The stator disk assembly according to claim 3, wherein A part of the limiting plate is attached to the first portion of the valve plate; The stationary disk assembly further includes a fastener, the fastener is used to connect the limiting plate, the first portion of the valve plate and the stationary disk, and at least a part of the fastener is located in the groove.

5. The stator disk assembly according to any one of claims 1 to 4, characterized in that, The distance from the notch of the groove to the bottom wall of the groove is denoted as h1; The stationary disk is further provided with scroll teeth, the exhaust port is located between the scroll teeth and the groove, and the distance from the notch of the groove to the side of the scroll teeth facing the exhaust port is denoted as h2; Wherein, 0.58 ≤ h1 / h2 ≤ 0.

72.

6. The stator disk assembly according to any one of claims 1 to 4, characterized in that The cross-sectional area of the flow passage of the exhaust port is denoted as S1; The stationary disk is sectioned along a direction perpendicular to the valve plate to the exhaust port, and in the section, the area of the region enclosed by the inner contour line of the groove side wall is denoted as S2; Wherein, 0.05 ≤ S1 / S2 ≤ 0.

1.

7. The stator disk assembly according to any one of claims 1 to 4, characterized in that, On the cross-section of the stationary disk assembly, a part of the inner contour line of the groove side wall is in contact with the outer contour line of the first portion of the valve plate; The cross-section of the stationary disk assembly is perpendicular to the direction from the valve plate to the exhaust port.

8. The stator disc assembly according to any one of claims 1 to 4, characterized in that The second portion of the valve plate includes a first connection section and a second connection section, the first connection section is connected between the second connection section and the first portion of the valve plate, and the second connection section is used to open and close the exhaust port; The first portion of the valve plate is provided with a first connection portion and a second connection portion, both the first connection portion and the second connection portion are used to connect the stationary disk, and the first connection section is located between the first connection portion and the second connection portion.

9. The stator disk assembly according to any one of claims 1 to 4, characterized in that, The mounting portion includes a mounting surface or a mounting groove.

10. The stator disk assembly according to claim 9, wherein When the mounting portion includes the mounting groove, at least a part of the pressure plate group is located in the mounting groove, and the pressure plate group and the side wall of the mounting groove enclose the back pressure chamber.

11. A compressor, characterized in that, Comprising: The stationary disk assembly according to any one of claims 1 to 10.

12. A refrigeration device, characterized in that, Comprising: The compressor according to claim 11.

Images