Valve group exhaust assembly, motor, compressor and refrigeration equipment

Abstract

The utility model relates to the technical field of motors, and provides a valve group exhaust assembly, a motor, a compressor and refrigeration equipment, and the valve group exhaust assembly comprises a valve plate which is provided with an exhaust groove; the boss is arranged on the bottom end face of the exhaust groove, and an exhaust port is formed in the boss; one end of the exhaust valve plate is clamped in the exhaust groove, the other end of the exhaust valve plate covers the exhaust port, and when the valve group exhaust assembly sucks air or exhausts air, the exhaust valve plate can bend and deform to close or open the exhaust port; the buffer assembly is arranged on the bottom end face of the exhaust groove and located between the bottom end face of the exhaust groove and the exhaust valve plate, a flanging structure is arranged at one end of the buffer assembly, and the height of the boss is flush with the height of the flanging structure in the extending direction of the boss; the lift limiting assembly is arranged in the exhaust groove and arranged on the exhaust valve plate in a pressed mode. By additionally arranging the buffer assembly, the stress of the exhaust valve plate clapping the exhaust port is improved, and the reliability of the compressor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and more particularly, to a valve group exhaust assembly, a motor, a compressor, and a refrigeration device. Background Art

[0002] Currently, in the related art, the valve group exhaust structure of a compressor usually only includes a valve plate, an exhaust valve sheet, and a lift limiting assembly, or a shock-absorbing gasket is provided at the exhaust port. Due to the relatively high pressure on the exhaust side, during the exhaust process, the exhaust valve sheet is extremely likely to cause vibration noise of itself and related components of the compressor, as well as high-frequency flapping noise generated by hitting the exhaust port. Moreover, the force on the exhaust valve sheet during flapping is relatively poor, resulting in easy damage to the exhaust valve sheet and the shock-absorbing gasket, and relatively low reliability. Summary of the Utility Model

[0003] The present application aims to at least solve the technical problems in the related art that during the movement of the exhaust valve sheet, it is extremely likely to cause vibration noise of itself and related components of the compressor, or high-frequency flapping noise generated by hitting the exhaust port, and the force on the exhaust valve sheet during flapping is relatively poor, resulting in easy damage to the exhaust valve sheet and the shock-absorbing gasket, and a reduction in the operating reliability of the compressor.

[0004] To this end, a first aspect of the present application provides a valve group exhaust assembly.

[0005] A second aspect of the present application proposes a motor.

[0006] A third aspect of the present application proposes a compressor.

[0007] A fourth aspect of the present application proposes a refrigeration device.

[0008] In view of this, the present application provides a valve group exhaust assembly, including: a valve plate provided with an exhaust groove; a boss provided on the bottom end face of the exhaust groove and extending along a direction perpendicular to the bottom end face of the exhaust groove, and an exhaust port is provided on the boss; an exhaust valve sheet, one end of the exhaust valve sheet is clamped in the exhaust groove, and the other end of the exhaust valve sheet covers the exhaust port. When the valve group exhaust assembly inhales or exhales, the exhaust valve sheet can be bent and deformed to approach or move away from the exhaust port to close or open the exhaust port; a buffer assembly provided on the bottom end face of the exhaust groove and located between the bottom end face of the exhaust groove and the exhaust valve sheet, one end of the buffer assembly is provided with a flanging structure, and along the extending direction of the boss, the height of the boss is flush with the height of the flanging structure; a lift limiting assembly provided in the exhaust groove and pressing on the exhaust valve sheet.

[0009] The valve group exhaust assembly provided by this application includes a valve plate, a boss, an exhaust valve plate, a buffer assembly, and a lift limit assembly. Among them, an exhaust groove is provided on the valve plate. The exhaust groove has a bottom end face. The boss is provided on the bottom end face of the exhaust groove and extends along the direction perpendicular to the bottom end face of the exhaust groove, that is, the boss is provided on the bottom end face of the exhaust groove and protrudes from the bottom end face and extends upward from the bottom end face. An exhaust port is provided on the boss, that is, an exhaust port is opened on the boss to exhaust through the exhaust port. The exhaust valve plate is arranged in the exhaust groove, and one end of the exhaust valve plate is clamped in the exhaust groove to form a fixed end, and the other end of the exhaust valve plate covers the exhaust port to form a free end. In this way, when the valve group exhaust assembly inhales or exhausts, the exhaust valve plate can bend and deform to approach or move away from the exhaust port to close or open the exhaust port. That is, when the exhaust port exhausts, the exhaust valve plate is squeezed and deformed by the pressure, and the exhaust valve plate is pushed open to open the exhaust port. At this time, the refrigerant is discharged from the exhaust port. After the exhaust is over, due to the decrease in the refrigerant pressure, the exhaust valve plate automatically returns to its deformed state and covers the exhaust port again to block the exhaust port.

[0010] A buffer assembly is provided in the valve group exhaust assembly. The buffer assembly is arranged on the bottom end face of the exhaust groove and is located between the bottom end face of the exhaust groove and the exhaust valve plate. That is, one side of the buffer assembly is installed on the bottom end face of the exhaust groove, and the other side is supported and connected to the exhaust valve plate for supporting the exhaust valve plate. One end of the buffer assembly is provided with a flanging structure. Along the extension direction of the boss, the height of the boss is flush with the height of the flanging structure, that is, along the height direction of the boss, the height of the flanging structure of the buffer assembly is the same as the height of the boss. In this way, when the exhaust valve plate bends and deforms, the flanging structure of the buffer assembly is used to buffer and support the exhaust valve plate, effectively reducing the vibration noise generated by the exhaust valve plate slapping the exhaust port. At the same time, the buffer assembly with the flanging structure can prevent the exhaust valve plate from bending and deforming too much during the slapping process, avoid damage to the exhaust valve plate, and improve the working reliability of the valve group exhaust assembly.

[0011] A lift limit assembly is also provided in the valve group exhaust assembly. The lift limit assembly is arranged in the exhaust groove and presses on the exhaust valve plate. By pressing the lift limit assembly on the exhaust valve plate, the exhaust valve plate is pressed and fixed, so that the exhaust valve plate can tightly block the exhaust port.

[0012] By arranging a buffer assembly between the bottom end face of the exhaust groove and the exhaust valve plate, the high-frequency noise generated by the exhaust valve plate slapping the exhaust port can be reduced, and the bending deformation amplitude of the exhaust valve plate can be improved. Not only can the high-frequency slapping noise of the valve group exhaust assembly of the compressor be reduced, but also the force when the exhaust valve plate slaps the exhaust port can be improved, avoiding damage to the exhaust valve plate and enhancing the reliability of the compressor.

[0013] The exhaust assembly of the valve group according to the above technical solution of the present application may further have the following additional technical features:

[0014] In some technical solutions, optionally, the folding direction of the flanging structure is folded from the buffer assembly towards the side close to the exhaust valve piece, and the flanging structure abuts against the exhaust valve piece.

[0015] In this technical solution, by setting one end of the buffer assembly to have a flanging structure, and the folding direction of the flanging structure is folded towards the side of the exhaust valve piece and abuts tightly against the exhaust valve piece. This not only enhances the supporting effect of the buffer assembly on the exhaust valve piece, but also enables the exhaust valve piece to be effectively buffered and limited when it is bent and deformed under pressure. The flanging structure can effectively reduce the direct impact between the exhaust valve piece and the exhaust port, thereby greatly reducing the generation of high-frequency flapping noise.

[0016] In some technical solutions, optionally, the buffer assembly includes a first exhaust gasket and a second exhaust gasket. A flanging structure is provided at one end of the first exhaust gasket, and the second exhaust gasket is stacked on the other end of the first exhaust gasket. Both the flanging structure and the second exhaust gasket abut against the exhaust valve piece.

[0017] In this technical solution, the buffer assembly includes a first exhaust gasket and a second exhaust gasket. Among them, a flanging structure is provided at one end of the first exhaust gasket, and no flanging structure is provided at the other end for installing and placing the second exhaust gasket, that is, the second exhaust gasket is stacked on the other end of the first exhaust gasket, and both the flanging structure and the second exhaust gasket can abut against the exhaust valve piece. In this way, it ensures that the entire exhaust valve piece can be effectively and stably supported, improves the stability and reliability of the exhaust valve piece, and extends the service life of the compressor.

[0018] In some technical solutions, optionally, the first exhaust gasket includes a folding portion and a flat portion. The folding portion is connected to the flat portion, the flat portion is disposed on the bottom end surface of the exhaust groove, the second exhaust gasket is stacked on the flat portion, and along the direction perpendicular to the bottom end surface of the exhaust groove, the height of the folding portion is equal to the sum of the heights of the flat portion and the second exhaust gasket.

[0019] In this technical solution, the first exhaust gasket includes a folded portion and a flat portion, and the folded portion is connected to the flat portion. Among them, the flat portion is arranged and installed on the bottom end face of the exhaust groove, and the second exhaust gasket is stacked on the upper side of the flat portion. That is, one side of the first exhaust gasket is attached to the bottom end face of the exhaust groove, and the other side of the first exhaust gasket is used to support the exhaust valve plate. One end of the first exhaust gasket is provided with a folded portion, and the other end is used to place the second exhaust gasket. Along the direction perpendicular to the bottom end face of the exhaust groove, the height of the folded portion is equal to the sum of the heights of the flat portion and the second exhaust gasket. That is, one end of the first exhaust gasket is the folded portion, and the other end is the flat portion. Since the height of the folded portion is higher than that of the flat portion, in order to stably support the exhaust valve plate, the second exhaust gasket is stacked on the upper side of the flat portion, so that the height of the folded portion is equal to the height of the flat portion plus the height of the second exhaust gasket. Since the height of the folded portion is equal to the sum of the heights of the flat portion and the second exhaust gasket, a uniform and flush support surface is formed on the lower side of the exhaust valve plate by the entire buffer assembly, realizing stable support for the exhaust valve plate and enabling the exhaust valve plate to cover the exhaust port flatly and tightly.

[0020] In some technical solutions, optionally, the folded portion and the flat portion are integrally structured.

[0021] In this technical solution, the folded portion and the flat portion adopt an integral structure design, which enhances the integrity and stability of the buffer assembly. This not only simplifies the production process, reduces the manufacturing cost, but also ensures the firm and reliable connection between the folded portion and the flat portion, avoiding performance degradation or failure caused by poor connection.

[0022] In some technical solutions, optionally, the valve group exhaust assembly further includes a limiting portion. The number of limiting portions is two, and the two limiting portions are oppositely arranged on both sides of the inner wall of the exhaust groove to limit and fix one end of the exhaust valve plate.

[0023] In this technical solution, the valve group exhaust assembly further includes a limiting portion. Among them, the number of limiting portions is specifically two, and the two limiting portions are oppositely arranged on both sides of the inner wall of the exhaust groove, forming a limiting structure for limiting and fixing one end of the exhaust valve plate. This ensures that the exhaust valve plate can maintain a stable posture when subjected to pressure, prevents circumferential movement, and avoids performance degradation or failure of the exhaust valve plate caused by excessive deformation.

[0024] In some technical solutions, optionally, the valve group exhaust assembly further includes: a suction port provided on the valve plate for the refrigerant to enter the valve group exhaust assembly through the suction port; an exhaust flow-through hole provided on the valve plate for discharging the refrigerant from the exhaust port and discharging the refrigerant from the valve group exhaust assembly through the exhaust flow-through hole; a sound-absorbing limiting hole provided on the valve plate; and a fixing hole provided on the valve plate for fixing the valve group exhaust assembly.

[0025] In this technical solution, the valve group exhaust assembly further includes a suction port, an exhaust flow hole, a silencing limit hole, and a fixing hole. Among them, the suction port is arranged on the valve plate and is used for the refrigerant to enter the valve group exhaust assembly through the suction port. The exhaust flow hole is arranged on the valve plate and is used to discharge the refrigerant from the exhaust port and discharge it from the valve group exhaust assembly through the exhaust flow hole, and specifically enter the high-pressure cavity of the crankcase. The silencing limit hole is arranged on the valve plate and is used to fixedly install a silencer to reduce the noise of the valve group exhaust assembly; the fixing hole is arranged on the valve plate and is used to fix the valve group exhaust assembly. By arranging the suction port, the exhaust flow hole, the silencing limit hole, and the fixing hole on the valve plate, while the valve group exhaust assembly maintains good working performance, the stability and reliability of the compressor system are further improved, and the noise and energy consumption are reduced.

[0026] In some technical solutions, optionally, the lift limit assembly includes a connecting section and an upturned section. The connecting section and the upturned section are connected, the connecting section is pressed on the exhaust valve plate, and the upturned section tilts away from the exhaust valve plate.

[0027] In this technical solution, the lift limit assembly includes a connecting section and an upturned section, and the connecting section and the upturned section are connected. Among them, by setting the connecting section to be pressed on the exhaust valve plate and the upturned section tilting away from the exhaust valve plate, in this way, when the exhaust port is not exhausting, the connecting section can be closely pressed on the exhaust valve plate to ensure that the exhaust port is completely sealed. When the exhaust port is exhausting, the upturned section can limit the amplitude of the bending deformation of the exhaust valve plate to avoid damage to the exhaust valve plate.

[0028] In some technical solutions, optionally, the circumferential side of the lift limit assembly is connected with the circumferential wall surface of the exhaust groove in an interference fit manner.

[0029] In this technical solution, by setting the circumferential side of the lift limit assembly to be connected with the circumferential wall surface of the exhaust groove in an interference fit manner, it is ensured that the lift limit assembly can be stably maintained in the exhaust groove during the working process and is not easily loosened or displaced by external factors. In this way, the pressing and fixing of the exhaust valve plate can be realized, and when the lift limit assembly is installed in the exhaust groove, a tight contact surface will be formed between its circumferential side and the circumferential wall surface of the exhaust groove. This contact surface not only provides sufficient friction to prevent the loosening or displacement of the lift limit assembly, but also can effectively prevent the leakage of refrigerant or other media from between the contact surfaces.

[0030] According to the second aspect of the present application, a motor is further proposed, including: the valve group exhaust assembly in the above-mentioned solution, as well as a crankcase and a cylinder, and the valve group exhaust assembly is fixed between the crankcase and the cylinder.

[0031] The motor provided by the present application includes the valve group exhaust assembly of the above technical solution, so it has all the beneficial effects of this valve group exhaust assembly, which will not be elaborated here.

[0032] In addition, the motor further includes a crankcase and a cylinder. Among them, the valve group exhaust assembly is fixed between the case surface of the crankcase and the cylinder head of the cylinder, enabling the refrigerant to flow between the crankcase and the cylinder.

[0033] According to the third aspect of the present application, a compressor is further provided, including: the motor in the above solution.

[0034] The compressor provided by the present application includes the motor of the above technical solution, so it has all the beneficial effects of this motor, which will not be elaborated here.

[0035] According to the fourth aspect of the present application, a refrigeration device is further provided, including: the compressor in the above solution.

[0036] The refrigeration device provided by the present application includes the compressor of the above technical solution, so it has all the beneficial effects of this compressor, which will not be elaborated here.

[0037] The additional aspects and advantages of the present application will become obvious in the following description section or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0039] Figure 1 is an exploded view of the valve group exhaust assembly of an embodiment of the present application;

[0040] Figure 2 is a schematic structural diagram of the valve group exhaust assembly of an embodiment of the present application;

[0041] Figure 3 is Figure 2 the A-A cross-sectional structural diagram of the valve group exhaust assembly of the illustrated embodiment;

[0042] Figure 4 is Figure 3 the enlarged structural diagram of part Y of the valve group exhaust assembly of the illustrated embodiment;

[0043] Figure 5 is an exploded view of the buffer assembly of an embodiment of the present application;

[0044] Figure 6 is a schematic structural diagram of the buffer assembly of an embodiment of the present application;

[0045] Figure 7 is Figure 6 the B-B cross-sectional structural diagram of the buffer assembly of the illustrated embodiment;

[0046] Figure 8 isFigure 6 Schematic cross-sectional structure diagram of the buffer assembly of the illustrated embodiment;

[0047] Figure 9 Schematic structure diagram of the valve group exhaust assembly of another embodiment of the present application;

[0048] Figure 10 is Figure 9 Partial schematic structure diagram of the valve group exhaust assembly of the illustrated embodiment;

[0049] Figure 11 is Figure 9 Schematic structure diagram of the buffer assembly of the illustrated embodiment;

[0050] Figure 12 Schematic structure diagram of a refrigeration device according to an embodiment of the present application;

[0051] Figure 13 Schematic diagram for comparison of measured frequency spectra of compressor noise according to an embodiment of the present application.

[0052] Among them, Figures 1 to 13 The corresponding relationship between the reference numerals and the component names in the figures is as follows:

[0053] 100 valve group exhaust assembly, 110 valve plate, 112 exhaust groove, 120 boss, 122 exhaust port, 130 exhaust valve disc, 140 buffer assembly, 142 flanging structure, 150 first exhaust gasket, 152 folding portion, 154 flat portion, 160 second exhaust gasket, 170 lift limit assembly, 172 connecting section, 174 upwardly curved section, 180 limiting portion, 190 suction port, 192 exhaust flow hole, 194 silencing limit hole, 196 fixing hole, 200 motor, 210 crankcase, 220 cylinder, 300 compressor, 400 refrigeration device. Detailed implementation manners

[0054] In order to be able to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below in conjunction with 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 may be combined with each other.

[0055] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application may also 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.

[0056] The following will describe Figures 1 to 13 the valve group exhaust assembly 100, the motor 200, the compressor 300 and the refrigeration device 400 according to some embodiments of the present application.

[0057] As shown Figures 1 to 13 in Figure 1 FIG. 1, there is an exploded view of a valve group exhaust assembly 100 according to an embodiment of the present application; Figure 2 FIG. 2 is a schematic structural view of a valve group exhaust assembly 100 according to an embodiment of the present application; Figure 3 FIG. 3 Figure 2 is a schematic sectional view of the valve group exhaust assembly 100 of the embodiment shown in FIG. 2 taken along line A-A; Figure 4 FIG. 4 Figure 3 is an enlarged schematic view of part Y of the valve group exhaust assembly 100 of the embodiment shown in FIG. 2; Figure 5 FIG. 5 is an exploded view of a buffer assembly 140 according to an embodiment of the present application; Figure 6 FIG. 6 is a schematic structural view of a buffer assembly 140 according to an embodiment of the present application; Figure 7 FIG. 7 Figure 6 is a schematic sectional view of the buffer assembly 140 of the embodiment shown in FIG. 6 taken along line B-B; Figure 8 FIG. 8 Figure 6 is a schematic sectional view of the buffer assembly 140 of the embodiment shown in FIG. 6 taken along line C-C; Figure 9 FIG. 9 is a schematic structural view of a valve group exhaust assembly 100 according to another embodiment of the present application; Figure 10 FIG. 10 Figure 9 is a partial schematic structural view of the valve group exhaust assembly 100 of the embodiment shown in FIG. 9; Figure 11 FIG. 11 Figure 9 is a schematic structural view of the buffer assembly 140 of the embodiment shown in FIG. 10; Figure 12 FIG. 12 is a schematic structural view of a refrigeration device 400 according to an embodiment of the present application; Figure 13 FIG. 13 is a schematic diagram comparing the measured noise spectra of a compressor 300 according to an embodiment of the present application.

[0058] A valve group exhaust assembly 100 provided by an embodiment of the present application includes: a valve plate 110, the valve plate 110 is provided with an exhaust groove 112; a boss 120, which is arranged on the bottom end surface of the exhaust groove 112 and extends along a direction perpendicular to the bottom end surface of the exhaust groove 112, and an exhaust port 122 is arranged on the boss 120; an exhaust valve sheet 130, one end of the exhaust valve sheet 130 is clamped in the exhaust groove 112, and the other end of the exhaust valve sheet 130 covers the exhaust port 122. When the valve group exhaust assembly 100 inhales or exhales, the exhaust valve sheet 130 can be bent and deformed to approach or move away from the exhaust port 122 to close or open the exhaust port 122; a buffer assembly 140, which is arranged on the bottom end surface of the exhaust groove 112 and is located between the bottom end surface of the exhaust groove 112 and the exhaust valve sheet 130, one end of the buffer assembly 140 is provided with a flanging structure 142, and along the extending direction of the boss 120, the height of the boss 120 is flush with the height of the flanging structure 142; a lift limit assembly 170, which is arranged in the exhaust groove 112 and presses on the exhaust valve sheet 130.

[0059] Specifically, as shown in Figure 1 and Figure 2 the valve group exhaust assembly 100 includes a valve plate 110, a boss 120, an exhaust valve plate 130, a buffer assembly 140, and a lift limit assembly 170. Among them, an exhaust groove 112 is provided on the valve plate 110. The exhaust groove 112 has a bottom end face. The boss 120 is provided on the bottom end face of the exhaust groove 112 and extends along a direction perpendicular to the bottom end face of the exhaust groove 112, that is, the boss 120 is provided on the bottom end face of the exhaust groove 112 and protrudes from the bottom end face and extends upward from the bottom end face. An exhaust port 122 is provided on the boss 120, that is, an exhaust port 122 is formed on the boss 120 for exhausting through the exhaust port 122. The exhaust valve plate 130 is arranged in the exhaust groove 112, and one end of the exhaust valve plate 130 is clamped in the exhaust groove 112 to form a fixed end, and the other end of the exhaust valve plate 130 covers the exhaust port 122 to form a free end. In this way, when the valve group exhaust assembly 100 inhales or exhales, the exhaust valve plate 130 can be bent and deformed to approach or move away from the exhaust port 122 to close or open the exhaust port 122. That is, when the exhaust port 122 exhausts, due to the pressure effect, the exhaust valve plate 130 is squeezed and deformed, and the exhaust valve plate 130 is pushed open to open the exhaust port 122. At this time, the refrigerant is discharged from the exhaust port 122. After the exhaust is completed, due to the decrease in the refrigerant pressure, the exhaust valve plate 130 automatically returns to its deformed state and covers the exhaust port 122 again to block the exhaust port 122.

[0060] A buffer assembly 140 is provided in the valve group exhaust assembly 100. The buffer assembly 140 is arranged on the bottom end face of the exhaust groove 112 and is located between the bottom end face of the exhaust groove 112 and the exhaust valve plate 130, that is, one side of the buffer assembly 140 is installed on the bottom end face of the exhaust groove 112, and the other side is supported and connected to the exhaust valve plate 130 for supporting the exhaust valve plate 130. One end of the buffer assembly 140 is provided with a flanging structure 142. Along the extension direction of the boss 120, the height of the boss 120 is flush with the height of the flanging structure 142, that is, along the height direction of the boss 120, the height of the flanging structure 142 of the buffer assembly 140 is the same as the height of the boss 120. In this way, when the exhaust valve plate 130 is bent and deformed, the flanging structure 142 of the buffer assembly 140 is used to buffer and support the exhaust valve plate 130, effectively reducing the vibration noise generated by the exhaust valve plate 130 slapping the exhaust port 122. At the same time, the buffer assembly 140 with the flanging structure 142 can prevent the exhaust valve plate 130 from being bent and deformed too much during the slapping process, avoiding damage to the exhaust valve plate 130 and improving the working reliability of the valve group exhaust assembly 100.

[0061] The valve group exhaust assembly 100 is also provided with a lift limit assembly 170. The lift limit assembly 170 is arranged in the exhaust groove 112 and presses on the exhaust valve plate 130. By pressing the lift limit assembly 170 on the exhaust valve plate 130, the pressing and fixing of the exhaust valve plate 130 are realized, so that the exhaust valve plate 130 can tightly seal the exhaust port 122.

[0062] By arranging a buffer assembly 140 between the bottom end face of the exhaust groove 112 and the exhaust valve plate 130, the high-frequency noise generated by the exhaust valve plate 130 slapping the exhaust port 122 can be reduced, and the bending deformation amplitude of the exhaust valve plate 130 can be improved. Not only can the high-frequency slapping noise of the valve group exhaust assembly 100 of the compressor 300 be reduced, but also the force when the exhaust valve plate 130 slaps the exhaust port 122 can be improved, avoiding the damage of the exhaust valve plate 130 and enhancing the reliability of the compressor 300.

[0063] Specifically, at present, refrigeration equipment such as refrigerators, as essential household appliances in daily life, people's requirements for their performance are getting higher and higher. In addition to the important refrigeration capacity, the comfort of the refrigerator is also one of the key indicators of the refrigerator. As an important measurement parameter of comfort, noise has attracted much attention. In related technologies, the valve group exhaust structure of the compressor usually only sets a valve plate, an exhaust valve plate and a lift limit assembly, or sets damping components such as damping washers at the exhaust port. Due to the relatively large pressure on the exhaust side, during the exhaust process, the exhaust valve plate is extremely easy to excite vibration noise of itself and related components of the compressor, and generate high-frequency slapping noise when hitting the exhaust port. Moreover, the force when the exhaust valve plate slaps is relatively poor, resulting in easy damage of the exhaust valve plate and the damping washer, and the reliability of the compressor operation is relatively low.

[0064] For this problem, in the present application, as Figures 1 to 4 shown, by adding a buffer assembly 140 between the bottom end face of the exhaust groove 112 on the valve plate 110 and the exhaust valve plate 130, the buffer assembly 140 not only provides support for the exhaust valve plate 130, but also plays an effective buffering role through its unique flanging structure 142 when the exhaust valve plate 130 bends and deforms. By arranging a flanging structure 142 at one end of the buffer assembly 140, the vibration noise generated when the exhaust valve plate 130 slaps the exhaust port 122 is significantly reduced, and at the same time, the bending deformation amplitude of the exhaust valve plate 130 is limited, effectively avoiding the damage of the exhaust valve plate 130.

[0065] Specifically, as Figures 1 to 3As shown, the valve group exhaust assembly 100 is provided with a valve plate 110, and an exhaust groove 112 is arranged on the valve plate 110 for accommodating an exhaust valve piece 130, a buffer assembly 140 and a lift limit assembly 170. A boss 120 is arranged on the bottom end surface of the exhaust groove 112, and the boss 120 extends along a direction perpendicular to the bottom end surface of the exhaust groove 112, that is, the boss 120 protrudes from the bottom end surface of the exhaust groove 112. An exhaust port 122 is formed on the boss 120 and is used as a channel for discharging refrigerant. Specifically, as Figure 1 , Figure 2 and Figure 4 shown, the boss 120 can be set as a circular boss 120. The height of the boss 120 protruding from the bottom end surface of the exhaust groove 112 is 0.15 mm to 0.25 mm, and the diameter of the circular boss 120 is 0.5 mm to 0.6 mm. One end of the exhaust valve piece 130 is clamped in the exhaust groove 112, and the other end covers the exhaust port 122. When the compressor 300 inhales or exhales, the exhaust valve piece 130 can bend and deform according to the pressure change, so as to approach or move away from the exhaust port 122, realizing the closing or opening of the exhaust port 122. This design allows the exhaust valve piece 130 to open flexibly under high pressure and close tightly under low pressure, ensuring the normal operation of the compressor 300.

[0066] Specifically, as Figure 4 shown, in order to reduce the noise and vibration generated when the exhaust valve piece 130 strikes the exhaust port 122, a buffer assembly 140 is arranged between the bottom end surface of the exhaust groove 112 and the exhaust valve piece 130 in this application. The material of the buffer assembly 140 is steel or high-strength elastic buffer material. The buffer assembly 140 can be specifically set as a single-layer or double-layer buffer gasket. One end of the buffer assembly 140 is provided with a flanging structure 142, and the height of the flanging structure 142 is flush with the height of the boss 120, that is, the height of the flanging structure 142 is H, and the height of the boss 120 is also H. The height of the flanging structure 142 is equal to the height of the boss 120. In this way, when the exhaust valve piece 130 bends and deforms, the flanging structure 142 can provide additional support, reduce the bending deformation amplitude of the exhaust valve piece 130, and thus avoid damage to the exhaust valve piece 130 due to excessive deformation. At the same time, the flanging structure 142 can also effectively reduce the high-frequency noise generated when the exhaust valve piece 130 strikes the exhaust port 122.

[0067] In addition, as Figure 1 and Figure 2As shown, in order to ensure that the exhaust valve plate 130 can closely fit on the exhaust port 122 when closed to prevent refrigerant leakage, the present application further provides a lift limit component 170 in the exhaust groove 112. Specifically, the lift limit component 170 can be set as a lift limiter. The lift limit component 170 presses on the exhaust valve plate 130, and the setting of the lift limit component 170 further enhances the sealing effect of the exhaust valve plate 130 on the exhaust port 122, enabling the compressor 300 to maintain higher efficiency and stability during operation.

[0068] By adding the buffer component 140 to the valve group exhaust component 100 of the present application, not only the high-frequency flapping noise of the valve group exhaust component 100 of the compressor 300 is reduced, but also the force condition when the exhaust valve plate 130 flaps against the exhaust port 122 is improved, avoiding damage to the exhaust valve plate 130 and other components, thereby enhancing the operation reliability and service life of the compressor 300. It effectively solves the problems of vibration noise and high-frequency flapping noise existing in the traditional compressor valve group exhaust structure, ensures the best cooperation between components, and thus achieves multiple effects of noise reduction, vibration reduction, and improvement of the operation reliability of the compressor 300.

[0069] Specifically, as Figure 13 shown, Figure 13 FIG. is a comparison diagram of the 1 / 3 octave frequency spectrum of the noise experiment test between the technical solution of the valve group exhaust component 100 of the present application and the conventional solution, and is also a schematic diagram of the measured frequency spectrum comparison of the noise of the compressor 300 in an embodiment of the present application. From Figure 13 the comparison diagram before the improvement without the buffer component and after the improvement with the buffer component 140 added, it can be seen that by adding the buffer component 140 to the valve group exhaust component 100 of the present application, the high-frequency flapping noise of the valve group exhaust component 100 of the compressor 300 is effectively reduced.

[0070] In some embodiments, optionally, as Figure 1 shown, the folding direction of the flanging structure 142 folds from the buffer component 140 towards the side close to the exhaust valve plate 130, and the flanging structure 142 abuts against the exhaust valve plate 130.

[0071] Specifically, as Figure 1 shown, by setting one end of the buffer component 140 to have a flanging structure 142, and the folding direction of the flanging structure 142 folds towards the side of the exhaust valve plate 130 and tightly abuts against the exhaust valve plate 130. This not only enhances the supporting effect of the buffer component 140 on the exhaust valve plate 130, but also enables the exhaust valve plate 130 to be effectively buffered and limited when it is bent and deformed under pressure. The flanging structure 142 can effectively reduce the direct impact between the exhaust valve plate 130 and the exhaust port 122, thereby greatly reducing the generation of high-frequency flapping noise.

[0072] Specifically, as Figure 3 and Figure 4 shown, when the compressor 300 performs an exhaust operation, the high-pressure refrigerant will push the exhaust valve plate 130 to move away from the exhaust port 122. As the exhaust process proceeds, the exhaust valve plate 130 will bend and deform to open the exhaust port 122. When the exhaust ends, the exhaust valve plate 130 will quickly rebound under the action of its own elasticity and pressure difference and re-cover the exhaust port 122. At this time, the flanging structure 142 plays a buffering role, that is, the flanging structure 142 will contact the exhaust valve plate 130, acting as a buffer pad, slowing down the moving speed and impact force of the exhaust valve plate 130, and preventing the exhaust valve plate 130 from colliding violently with the exhaust port 122 due to too fast a rebound. During this process, the flanging structure 142 always maintains the supporting and limiting effects on the exhaust valve plate 130, thereby reducing the generation of high-frequency flapping noise and improving the durability of the exhaust valve plate 130 and the overall operation reliability of the compressor 300.

[0073] In some embodiments, optionally, as Figure 4 、 Figure 5 and Figure 6 shown, the buffer assembly 140 includes a first exhaust gasket 150 and a second exhaust gasket 160. One end of the first exhaust gasket 150 is provided with a flanging structure 142, and the second exhaust gasket 160 is stacked on the other end of the first exhaust gasket 150. Both the flanging structure 142 and the second exhaust gasket 160 are in contact with the exhaust valve plate 130.

[0074] Specifically, as Figure 5 and Figure 6 shown, the buffer assembly 140 includes a first exhaust gasket 150 and a second exhaust gasket 160. Among them, one end of the first exhaust gasket 150 is provided with a flanging structure 142, and the other end is not provided with a flanging structure 142 for installing and placing the second exhaust gasket 160, that is, the second exhaust gasket 160 is stacked on the other end of the first exhaust gasket 150, and both the flanging structure 142 and the second exhaust gasket 160 can be in contact with the exhaust valve plate 130. In this way, it is ensured that the entire exhaust valve plate 130 can be effectively and stably supported, improving the stability and reliability of the exhaust valve plate 130 and extending the service life of the compressor 300.

[0075] Specifically, as Figure 5As shown, when the compressor 300 operates, the exhaust valve plate 130 will bend and deform according to the flow condition of the refrigerant. At this time, since the flanging structure 142 of the first exhaust gasket 150 contacts the exhaust valve plate 130, it plays a buffering and supporting role. Also, the second exhaust gasket 160 also contacts the exhaust valve plate 130, providing effective support for the exhaust valve plate 130 and jointly bearing the pressure and impact force of the exhaust valve plate 130. This design of the double-layer gasket not only enhances the strength and durability of the buffer assembly 140, but also enables the exhaust valve plate 130 to be more evenly and stably supported when under pressure.

[0076] Specifically, the materials of the first exhaust gasket 150 and the second exhaust gasket 160 are steel or high-strength elastic buffer materials, which can be specifically set according to actual needs and will not be listed here.

[0077] In some embodiments, optionally, as Figure 5 and Figure 6 shown, the first exhaust gasket 150 includes a folding portion 152 and a flat portion 154. The folding portion 152 is connected to the flat portion 154. The flat portion 154 is disposed on the bottom end surface of the exhaust groove 112. The second exhaust gasket 160 is stacked on the flat portion 154. Along the direction perpendicular to the bottom end surface of the exhaust groove 112, the height of the folding portion 152 is equal to the sum of the heights of the flat portion 154 and the second exhaust gasket 160.

[0078] Specifically, as Figure 7 and Figure 8 shown, during the operation of the compressor 300, the folding portion 152 can ensure that the exhaust valve plate 130 remains stable during the deformation process, avoiding excessive vibration or noise. At the same time, since the height of the folding portion 152 is equal to the sum of the heights of the flat portion 154 and the second exhaust gasket 160, that is, the height of the folding portion 152 is H, and the sum of the heights of the flat portion 154 and the second exhaust gasket 160 is H, the height design of the folding portion 152 being equal to the sum of the heights of the flat portion 154 and the second exhaust gasket 160 ensures that when the exhaust valve plate 130 is in an unloaded state, the buffer assembly 140 can stably support the exhaust valve plate 130, enabling the exhaust valve plate 130 to flatly and tightly cover the exhaust port 122. And the presence of the second exhaust gasket 160 further enhances the supporting effect of the buffer assembly 140. It is stacked on the flat portion 154 and jointly forms a flat and stable supporting structure with the folding portion 152. This design of the double-layer gasket not only improves the durability of the buffer assembly 140, but also enables the exhaust valve plate 130 to be more comprehensively and evenly supported when under pressure.

[0079] In addition, as Figures 9 to 11As shown, the buffer assembly 140 can be a single-layer buffer gasket, which is arranged between the bottom end face of the exhaust groove 112 and the exhaust valve plate 130 to support and buffer the exhaust valve plate 130. Specifically, as Figure 10 and Figure 11 shown, the buffer assembly 140 can be a single-layer buffer gasket. The single-layer buffer gasket can be a flat buffer gasket without a flanging structure 142. The design of the single-layer buffer gasket is simple and efficient, and it can be directly arranged between the bottom end face of the exhaust groove 112 and the exhaust valve plate 130, playing a role in support and buffering. This not only simplifies the structure of the valve group exhaust assembly 100, but also reduces the production cost, while maintaining good buffering performance.

[0080] In some embodiments, optionally, as Figure 7 and Figure 8 shown, the folding part 152 and the straight part 154 are integrally structured.

[0081] Specifically, as Figure 7 and Figure 8 shown, the folding part 152 and the straight part 154 are designed with an integral structure, enhancing the integrity and stability of the buffer assembly 140. This not only simplifies the production process and reduces the manufacturing cost, but also ensures that the connection between the folding part 152 and the straight part 154 is firm and reliable, avoiding performance degradation or failure caused by poor connection.

[0082] Specifically, as Figure 7 and Figure 8 shown, the folding part 152 and the straight part 154 with an integral structure are made of the same material, usually selected from materials with good elasticity and wear resistance. Such a design enables the buffer assembly 140 to maintain a stable support and buffering effect when bearing the impact force and vibration of the exhaust valve plate 130. At the same time, since there is no additional connecting piece or gap between the folding part 152 and the straight part 154, the problems of noise and vibration caused by poor connection are also reduced.

[0083] In some embodiments, optionally, as Figure 1 shown, the valve group exhaust assembly 100 further includes a limiting part 180. The number of the limiting parts 180 is two, and the two limiting parts 180 are oppositely arranged on both sides of the inner wall of the exhaust groove 112 to limit and fix one end of the exhaust valve plate 130.

[0084] Specifically, as Figure 1As shown, the valve group exhaust assembly 100 further includes a limiting portion 180. Specifically, the number of the limiting portions 180 is two, and the two limiting portions 180 are oppositely arranged on both sides of the inner wall of the exhaust groove 112, forming a limiting structure for limiting and fixing one end of the exhaust valve plate 130. This ensures that the exhaust valve plate 130 can maintain a stable posture when under pressure, prevents circumferential movement, and avoids performance degradation or failure of the exhaust valve plate 130 due to excessive deformation.

[0085] Specifically, as Figure 1 shown, the limiting portion 180 can be specifically set as a convex structure located on both sides of the inner wall of the exhaust groove 112. A clamping groove is provided on the convex structure for clamping the exhaust valve plate 130, so that one end of the exhaust valve plate 130 is clamped and fixed in the clamping groove, realizing the limiting and fixing of one end of the exhaust valve plate 130 and preventing the exhaust valve plate 130 from circumferentially moving when under pressure.

[0086] In some embodiments, optionally, as Figure 1 、 Figure 2 and Figure 9 shown, the valve group exhaust assembly 100 further includes: a suction port 190 provided on the valve plate 110 for refrigerant to enter the valve group exhaust assembly 100 through the suction port 190; an exhaust flow-through hole 192 provided on the valve plate 110 for discharging the refrigerant from the exhaust port 122 and discharging the valve group exhaust assembly 100 through the exhaust flow-through hole 192; a silencing and limiting hole 194 provided on the valve plate 110; and a fixing hole 196 provided on the valve plate 110 for fixing the valve group exhaust assembly 100.

[0087] Specifically, as Figure 1 、 Figure 2 and Figure 9 shown, the valve group exhaust assembly 100 further includes a suction port 190, an exhaust flow-through hole 192, a silencing and limiting hole 194, and a fixing hole 196. Among them, the suction port 190 is provided on the valve plate 110 for refrigerant to enter the valve group exhaust assembly 100 through the suction port 190, the exhaust flow-through hole 192 is provided on the valve plate 110 for discharging the refrigerant from the exhaust port 122 and discharging the valve group exhaust assembly 100 through the exhaust flow-through hole 192, specifically into the high-pressure cavity of the crankcase 210. The silencing and limiting hole 194 is provided on the valve plate 110 for fixedly installing a silencer to reduce noise for the valve group exhaust assembly 100; the fixing hole 196 is provided on the valve plate 110 for fixing the valve group exhaust assembly 100. By providing the suction port 190, the exhaust flow-through hole 192, the silencing and limiting hole 194, and the fixing hole 196 on the valve plate 110, while the valve group exhaust assembly 100 maintains good working performance, the stability and reliability of the compressor 300 system are further improved, and the noise and energy consumption are reduced.

[0088] Specifically, as shown in Figure 1 , Figure 2 and Figure 9 , the number of the suction ports 190 may be one, which is arranged at the middle position of the valve plate 110 and is close to the exhaust groove 112 structure. The number of the exhaust flow holes 192 may be one, which is arranged at one side of the valve plate 110, facilitating the discharge of the refrigerant from the exhaust port 122 and discharging the refrigerant out of the exhaust assembly 100 of the valve group through the exhaust flow holes 192. The number of the silencing limit holes 194 may be one, which is arranged at the other side of the valve plate 110, facilitating the installation and fixation of the silencer. The number of the fixing holes 196 may be four, which are respectively arranged on the peripheral side of the valve plate 110 for fixing the exhaust assembly 100 of the valve group.

[0089] Specifically, during the operation of the compressor 300, when the compressor 300 starts to work, the refrigerant enters the cylinder 220 through the suction port 190, reciprocates and does work inside the cylinder 220, and the refrigerant is compressed and gathered near the exhaust port 122. At this time, the exhaust valve plate 130 will perform opening and closing operations according to the pressure conditions of the refrigerant to control the discharge of the refrigerant. During the exhaust process, the exhaust flow holes 192 ensure that the refrigerant can enter the high-pressure cavity of the crankcase 210 after being discharged from the exhaust port 122. By arranging the suction port 190, the exhaust flow holes 192, the silencing limit holes 194 and the fixing holes 196 on the valve plate 110, the exhaust assembly 100 of the valve group is maintained in good working performance, and the stability and reliability of the operation of the compressor 300 are improved.

[0090] In some embodiments, optionally, as shown in Figure 1 and Figure 4 , the lift limit assembly 170 includes a connecting section 172 and an upturned section 174. The connecting section 172 and the upturned section 174 are connected. The connecting section 172 is pressed on the exhaust valve plate 130, and the upturned section 174 is upturned in a direction away from the exhaust valve plate 130.

[0091] Specifically, as shown in Figure 4 , the lift limit assembly 170 includes a connecting section 172 and an upturned section 174, and the connecting section 172 and the upturned section 174 are connected. Among them, by arranging the connecting section 172 to be pressed on the exhaust valve plate 130 and the upturned section 174 to be upturned in a direction away from the exhaust valve plate 130, in this way, when the exhaust port 122 does not exhaust, the connecting section 172 can be closely pressed on the exhaust valve plate 130 to ensure that the exhaust port 122 is completely sealed. When the exhaust port 122 exhausts, the upturned section 174 can limit the amplitude of the bending deformation of the exhaust valve plate 130 to avoid damage to the exhaust valve plate 130.

[0092] Specifically, as shown in Figure 1 and Figure 4As shown, by setting the lift limit component 170 into two parts, namely the connecting section 172 and the upturned section 174, the sealing performance of the exhaust valve plate 130 when it is closed is ensured, and the degree of its deformation during the exhaust process is restricted. This improves the reliability and durability of the valve group exhaust component 100, helps reduce noise and vibration, and enhances the overall performance of the compressor 300.

[0093] Specifically, as Figure 4 shown, when the compressor 300 is in the suction state, the exhaust valve plate 130 remains closed, and the connecting section 172 presses tightly on the exhaust valve plate 130 to ensure that the exhaust port 122 is completely sealed. When the compressor 300 starts to exhaust, the exhaust valve plate 130 begins to deform under the action of the refrigerant pressure. As the pressure increases, the exhaust valve plate 130 gradually opens to allow the refrigerant to flow out from the exhaust port 122. During this process, the upturned section 174 plays an effective limiting role. When the exhaust valve plate 130 deforms to a certain extent, it will fit on the upturned section 174, thereby restricting its further deformation. This limiting effect not only protects the exhaust valve plate 130 from excessive deformation damage but also ensures the stability and controllability of the exhaust process.

[0094] In some embodiments, optionally, as Figure 2 and Figure 9 shown, the circumferential side of the lift limit component 170 is connected to the circumferential wall surface of the exhaust groove 112 by interference fit.

[0095] Specifically, as Figure 2 and Figure 9 shown, by setting the circumferential side of the lift limit component 170 to be connected to the circumferential wall surface of the exhaust groove 112 by interference fit, it is ensured that the lift limit component 170 can be stably held in the exhaust groove 112 during operation and is not easily loosened or displaced by external factors. This can achieve the pressing and fixing of the exhaust valve plate 130. Moreover, when the lift limit component 170 is installed in the exhaust groove 112, a tight contact surface will be formed between its circumferential side and the circumferential wall surface of the exhaust groove 112. This contact surface not only provides sufficient friction to prevent the loosening or displacement of the lift limit component 170 but also can effectively prevent the leakage of refrigerant or other media from between the contact surfaces.

[0096] Specifically, as Figure 2 and Figure 9As shown in the figure, the design principle of the interference fit connection is to design the circumferential dimension of the lift limit component 170 to be slightly larger than the inner diameter of the circumferential wall surface of the exhaust groove 112, so that the lift limit component 170 needs to be pressed into the exhaust groove 112 by a certain pressure or tool during installation. This pressure will generate a certain frictional force between the circumferential side of the lift limit component 170 and the circumferential wall surface of the exhaust groove 112, thereby ensuring that the lift limit component 170 can be stably held in the exhaust groove 112 during operation and is not easily loosened or displaced by external factors. In addition, the design of the interference fit connection also helps to improve the durability and reliability of the lift limit component 170. Since the lift limit component 170 needs to bear a large amount of pressure and vibration during operation, if the connection is not firm or there is a gap, it is easy to cause damage or failure of the lift limit component 170. The interference fit connection can effectively reduce this risk and ensure that the lift limit component 170 can work stably for a long time.

[0097] According to the second aspect of the present application, as Figure 12 shown, a motor 200 is also proposed, including: the valve group exhaust assembly 100 in the above-mentioned embodiment, and a crankcase 210 and a cylinder 220, and the valve group exhaust assembly 100 is fixed between the crankcase 210 and the cylinder 220.

[0098] The motor 200 provided by the present application includes the valve group exhaust assembly 100 of the above-mentioned embodiment, so it has all the beneficial effects of the valve group exhaust assembly 100, which will not be elaborated here.

[0099] In addition, the motor 200 also includes a crankcase 210 and a cylinder 220. Among them, the valve group exhaust assembly 100 is fixed between the case surface of the crankcase 210 and the cylinder head of the cylinder 220, realizing the circulation of the refrigerant between the crankcase 210 and the cylinder 220.

[0100] According to the third aspect of the present application, as Figure 12 shown, a compressor 300 is also proposed, including: the motor 200 in the above-mentioned embodiment.

[0101] The compressor 300 provided by the present application includes the motor 200 of the above-mentioned embodiment, so it has all the beneficial effects of the motor 200, which will not be elaborated here. Specifically, the compressor 300 can be specifically set as a reciprocating compressor.

[0102] According to the fourth aspect of the present application, as Figure 12 shown, a refrigeration device 400 is also proposed, including: the compressor 300 in the above-mentioned embodiment.

[0103] The refrigeration device 400 provided by the present application includes the compressor 300 of the above embodiment, and thus has all the beneficial effects of the compressor 300, which will not be elaborated here.

[0104] In the description of the present application, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application; the terms "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0105] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means 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 the present 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 a suitable manner in any one or more embodiments or examples.

[0106] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A valve group exhaust assembly, characterized in that, Comprising: A valve plate, the valve plate being provided with an exhaust groove; A boss, provided on the bottom end face of the exhaust groove and extending along a direction perpendicular to the bottom end face of the exhaust groove, an exhaust port being provided on the boss; An exhaust valve sheet, one end of the exhaust valve sheet being clamped in the exhaust groove, the other end of the exhaust valve sheet covering the exhaust port, when the valve group exhaust assembly inhales or exhales, the exhaust valve sheet can be bent and deformed to approach or move away from the exhaust port so as to close or open the exhaust port; A buffer assembly, provided on the bottom end face of the exhaust groove and located between the bottom end face of the exhaust groove and the exhaust valve sheet, one end of the buffer assembly being provided with a flanging structure, along the extending direction of the boss, the height of the boss is flush with the height of the flanging structure; A lift limit assembly, provided in the exhaust groove and pressing on the exhaust valve sheet.

2. The valve group exhaust assembly according to claim 1, wherein, The flanging direction of the flanging structure is folded from the buffer assembly towards the side close to the exhaust valve sheet, and the flanging structure abuts against the exhaust valve sheet.

3. The valve group exhaust assembly according to claim 1, wherein The buffer assembly includes a first exhaust gasket and a second exhaust gasket, one end of the first exhaust gasket being provided with the flanging structure, the second exhaust gasket being stacked on the other end of the first exhaust gasket, both the flanging structure and the second exhaust gasket abut against the exhaust valve sheet.

4. The valve group exhaust assembly according to claim 3, wherein The first exhaust gasket includes a folding part and a straight part, the folding part is connected to the straight part, the straight part is provided on the bottom end face of the exhaust groove, the second exhaust gasket is stacked on the straight part, along the direction perpendicular to the bottom end face of the exhaust groove, the height of the folding part is equal to the sum of the heights of the straight part and the second exhaust gasket.

5. The valve group exhaust assembly according to claim 4, wherein The folding part and the straight part are integrally structured.

6. The valve group exhaust assembly according to any one of claims 1 to 5, characterized in that The valve group exhaust assembly further includes a limiting part, the number of the limiting parts is two, the two limiting parts are oppositely arranged on both sides of the inner wall of the exhaust groove to limit and fix one end of the exhaust valve sheet.

7. The valve group exhaust assembly according to any one of claims 1 to 5, characterized in that, The valve group exhaust assembly further includes: An air inlet, provided on the valve plate, for refrigerant to enter the valve group exhaust assembly through the air inlet; An exhaust flow-through hole, provided on the valve plate, for discharging the refrigerant from the exhaust port and discharging the valve group exhaust assembly through the exhaust flow-through hole; A sound-absorbing limiting hole, provided on the valve plate; A fixing hole, provided on the valve plate, for fixing the valve group exhaust assembly.

8. The valve group exhaust assembly according to any one of claims 1 to 5, characterized in that The lift limit assembly includes a connecting section and an upturned section, the connecting section is connected to the upturned section, the connecting section presses on the exhaust valve sheet, and the upturned section tilts away from the exhaust valve sheet.

9. The valve group exhaust assembly according to any one of claims 1 to 5, characterized in that, The circumferential side of the lift limit assembly is in interference fit connection with the circumferential wall surface of the exhaust groove.

10. A motor, characterized in that, Comprising the valve group exhaust assembly according to any one of claims 1 to 9, and A crankcase and a cylinder, the valve group exhaust assembly being fixed between the crankcase and the cylinder.

11. A compressor, characterized in that, Comprising the motor according to claim 10.

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

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